widget.c

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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%                                                                             %
%                  W   W  IIIII  DDDD    GGGG  EEEEE  TTTTT                   %
%                  W   W    I    D   D  G      E        T                     %
%                  W W W    I    D   D  G  GG  EEE      T                     %
%                  WW WW    I    D   D  G   G  E        T                     %
%                  W   W  IIIII  DDDD    GGGG  EEEEE    T                     %
%                                                                             %
%                                                                             %
%                   MagickCore X11 User Interface Methods                     %
%                                                                             %
%                              Software Design                                %
%                                John Cristy                                  %
%                              September 1993                                 %
%                                                                             %
%                                                                             %
%  Copyright 1999-2009 ImageMagick Studio LLC, a non-profit organization      %
%  dedicated to making software imaging solutions freely available.           %
%                                                                             %
%  You may not use this file except in compliance with the License.  You may  %
%  obtain a copy of the License at                                            %
%                                                                             %
%    http://www.imagemagick.org/script/license.php                            %
%                                                                             %
%  Unless required by applicable law or agreed to in writing, software        %
%  distributed under the License is distributed on an "AS IS" BASIS,          %
%  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
%  See the License for the specific language governing permissions and        %
%  limitations under the License.                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/

/*
  Include declarations.
*/
#include "magick/studio.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/image.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/PreRvIcccm.h"
#include "magick/string_.h"
#include "magick/token.h"
#include "magick/utility.h"
#include "magick/xwindow-private.h"
#include "magick/widget.h"

#if defined(MAGICKCORE_X11_DELEGATE)

/*
  Define declarations.
*/
#define AreaIsActive(matte_info,position)  ( \
  ((position.y >= (int) (matte_info.y-matte_info.bevel_width)) &&  \
   (position.y < (int) (matte_info.y+matte_info.height+matte_info.bevel_width))) \
   ? MagickTrue : MagickFalse)
#define Extent(s)  ((int) strlen(s))
#define MatteIsActive(matte_info,position)  ( \
  ((position.x >= (int) (matte_info.x-matte_info.bevel_width)) && \
   (position.y >= (int) (matte_info.y-matte_info.bevel_width)) &&  \
   (position.x < (int) (matte_info.x+matte_info.width+matte_info.bevel_width)) &&  \
   (position.y < (int) (matte_info.y+matte_info.height+matte_info.bevel_width))) \
   ? MagickTrue : MagickFalse)
#define MaxTextWidth  ((unsigned int) (255*XTextWidth(font_info,"_",1)))
#define MinTextWidth  (26*XTextWidth(font_info,"_",1))
#define QuantumMargin   MagickMax(font_info->max_bounds.width,12)
#define WidgetTextWidth(font_info,text)  \
  ((unsigned int) XTextWidth(font_info,text,Extent(text)))
#define WindowIsActive(window_info,position)  ( \
  ((position.x >= 0) && (position.y >= 0) &&  \
   (position.x < (int) window_info.width) &&  \
   (position.y < (int) window_info.height)) ? MagickTrue : MagickFalse)

/*
  Enum declarations.
*/
typedef enum
{
  ControlState = 0x0001,
  InactiveWidgetState = 0x0004,
  JumpListState = 0x0008,
  RedrawActionState = 0x0010,
  RedrawListState = 0x0020,
  RedrawWidgetState = 0x0040,
  UpdateListState = 0x0100
} WidgetState;

/*
  Typedef declarations.
*/
typedef struct _XWidgetInfo
{
  char
    *cursor,
    *text,
    *marker;

  int
    id;

  unsigned int
    bevel_width,
    width,
    height;

  int
    x,
    y,
    min_y,
    max_y;

  MagickStatusType
    raised,
    active,
    center,
    trough,
    highlight;
} XWidgetInfo;

/*
  Variable declarations.
*/
static XWidgetInfo
  monitor_info =
  {
    (char *) NULL, (char *) NULL, (char *) NULL, 0, 0, 0, 0, 0, 0, 0, 0,
    MagickFalse, MagickFalse, MagickFalse, MagickFalse, MagickFalse
  },
  submenu_info =
  {
    (char *) NULL, (char *) NULL, (char *) NULL, 0, 0, 0, 0, 0, 0, 0, 0,
    MagickFalse, MagickFalse, MagickFalse, MagickFalse, MagickFalse
  },
  *selection_info = (XWidgetInfo *) NULL,
  toggle_info =
  {
    (char *) NULL, (char *) NULL, (char *) NULL, 0, 0, 0, 0, 0, 0, 0, 0,
    MagickFalse, MagickFalse, MagickFalse, MagickFalse, MagickFalse
  };

/*
  Constant declarations.
*/
static const int
  BorderOffset = 4,
  DoubleClick = 250;

/*
  Method prototypes.
*/
static void
  XDrawMatte(Display *,const XWindowInfo *,const XWidgetInfo *),
  XSetBevelColor(Display *,const XWindowInfo *,const MagickStatusType),
  XSetMatteColor(Display *,const XWindowInfo *,const MagickStatusType),
  XSetTextColor(Display *,const XWindowInfo *,const MagickStatusType);

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   D e s t r o y X W i d g e t                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  DestroyXWidget() destroys resources associated with the X widget.
%
%  The format of the DestroyXWidget method is:
%
%      void DestroyXWidget()
%
%  A description of each parameter follows:
%
*/
MagickExport void DestroyXWidget(void)
{
  if (selection_info != (XWidgetInfo *) NULL)
    selection_info=(XWidgetInfo *) RelinquishMagickMemory(selection_info);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X D r a w B e v e l                                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDrawBevel() "sets off" an area with a highlighted upper and left bevel and
%  a shadowed lower and right bevel.  The highlighted and shadowed bevels
%  create a 3-D effect.
%
%  The format of the XDrawBevel function is:
%
%      XDrawBevel(display,window_info,bevel_info)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o bevel_info: Specifies a pointer to a XWidgetInfo structure.  It
%      contains the extents of the bevel.
%
*/
static void XDrawBevel(Display *display,const XWindowInfo *window_info,
  const XWidgetInfo *bevel_info)
{
  int
    x1,
    x2,
    y1,
    y2;

  unsigned int
    bevel_width;

  XPoint
    points[6];

  /*
    Draw upper and left beveled border.
  */
  x1=bevel_info->x;
  y1=bevel_info->y+bevel_info->height;
  x2=bevel_info->x+bevel_info->width;
  y2=bevel_info->y;
  bevel_width=bevel_info->bevel_width;
  points[0].x=x1;
  points[0].y=y1;
  points[1].x=x1;
  points[1].y=y2;
  points[2].x=x2;
  points[2].y=y2;
  points[3].x=x2+bevel_width;
  points[3].y=y2-bevel_width;
  points[4].x=x1-bevel_width;
  points[4].y=y2-bevel_width;
  points[5].x=x1-bevel_width;
  points[5].y=y1+bevel_width;
  XSetBevelColor(display,window_info,bevel_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,6,Complex,CoordModeOrigin);
  /*
    Draw lower and right beveled border.
  */
  points[0].x=x1;
  points[0].y=y1;
  points[1].x=x2;
  points[1].y=y1;
  points[2].x=x2;
  points[2].y=y2;
  points[3].x=x2+bevel_width;
  points[3].y=y2-bevel_width;
  points[4].x=x2+bevel_width;
  points[4].y=y1+bevel_width;
  points[5].x=x1-bevel_width;
  points[5].y=y1+bevel_width;
  XSetBevelColor(display,window_info,!bevel_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,6,Complex,CoordModeOrigin);
  (void) XSetFillStyle(display,window_info->widget_context,FillSolid);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X D r a w B e v e l e d B u t t o n                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDrawBeveledButton() draws a button with a highlighted upper and left bevel
%  and a shadowed lower and right bevel.  The highlighted and shadowed bevels
%  create a 3-D effect.
%
%  The format of the XDrawBeveledButton function is:
%
%      XDrawBeveledButton(display,window_info,button_info)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o button_info: Specifies a pointer to a XWidgetInfo structure.  It
%      contains the extents of the button.
%
*/

static inline int MagickAbsoluteValue(const int x)
{
  if (x < 0)
    return(-x);
  return(x);
}

static inline int MagickMax(const int x,const int y)
{
  if (x > y)
    return(x);
  return(y);
}

static inline int MagickMin(const int x,const int y)
{
  if (x < y)
    return(x);
  return(y);
}

static void XDrawBeveledButton(Display *display,const XWindowInfo *window_info,
  const XWidgetInfo *button_info)
{
  int
    x,
    y;

  unsigned int
    width;

  XFontStruct
    *font_info;

  XRectangle
    crop_info;

  /*
    Draw matte.
  */
  XDrawBevel(display,window_info,button_info);
  XSetMatteColor(display,window_info,button_info->raised);
  (void) XFillRectangle(display,window_info->id,window_info->widget_context,
    button_info->x,button_info->y,button_info->width,button_info->height);
  x=button_info->x-button_info->bevel_width-1;
  y=button_info->y-button_info->bevel_width-1;
  (void) XSetForeground(display,window_info->widget_context,
    window_info->pixel_info->trough_color.pixel);
  if (button_info->raised || (window_info->depth == 1))
    (void) XDrawRectangle(display,window_info->id,window_info->widget_context,
      x,y,button_info->width+(button_info->bevel_width << 1)+1,
      button_info->height+(button_info->bevel_width << 1)+1);
  if (button_info->text == (char *) NULL)
    return;
  /*
    Set cropping region.
  */
  crop_info.width=(unsigned short) button_info->width;
  crop_info.height=(unsigned short) button_info->height;
  crop_info.x=button_info->x;
  crop_info.y=button_info->y;
  /*
    Draw text.
  */
  font_info=window_info->font_info;
  width=WidgetTextWidth(font_info,button_info->text);
  x=button_info->x+(QuantumMargin >> 1);
  if (button_info->center)
    x=button_info->x+(button_info->width >> 1)-(width >> 1);
  y=button_info->y+((button_info->height-
    (font_info->ascent+font_info->descent)) >> 1)+font_info->ascent;
  if ((int) button_info->width == (QuantumMargin >> 1))
    {
      /*
        Option button-- write label to right of button.
      */
      XSetTextColor(display,window_info,MagickTrue);
      x=button_info->x+button_info->width+button_info->bevel_width+
        (QuantumMargin >> 1);
      (void) XDrawString(display,window_info->id,window_info->widget_context,
        x,y,button_info->text,Extent(button_info->text));
      return;
    }
  (void) XSetClipRectangles(display,window_info->widget_context,0,0,&crop_info,
    1,Unsorted);
  XSetTextColor(display,window_info,button_info->raised);
  (void) XDrawString(display,window_info->id,window_info->widget_context,x,y,
    button_info->text,Extent(button_info->text));
  (void) XSetClipMask(display,window_info->widget_context,None);
  if (button_info->raised == MagickFalse)
    XDelay(display,SuspendTime << 2);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X D r a w B e v e l e d M a t t e                                         %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDrawBeveledMatte() draws a matte with a shadowed upper and left bevel and
%  a highlighted lower and right bevel.  The highlighted and shadowed bevels
%  create a 3-D effect.
%
%  The format of the XDrawBeveledMatte function is:
%
%      XDrawBeveledMatte(display,window_info,matte_info)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o matte_info: Specifies a pointer to a XWidgetInfo structure.  It
%      contains the extents of the matte.
%
*/
static void XDrawBeveledMatte(Display *display,const XWindowInfo *window_info,
  const XWidgetInfo *matte_info)
{
  /*
    Draw matte.
  */
  XDrawBevel(display,window_info,matte_info);
  XDrawMatte(display,window_info,matte_info);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X D r a w M a t t e                                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDrawMatte() fills a rectangular area with the matte color.
%
%  The format of the XDrawMatte function is:
%
%      XDrawMatte(display,window_info,matte_info)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o matte_info: Specifies a pointer to a XWidgetInfo structure.  It
%      contains the extents of the matte.
%
*/
static void XDrawMatte(Display *display,const XWindowInfo *window_info,
  const XWidgetInfo *matte_info)
{
  /*
    Draw matte.
  */
  if ((matte_info->trough == MagickFalse) || (window_info->depth == 1))
    (void) XFillRectangle(display,window_info->id,
      window_info->highlight_context,matte_info->x,matte_info->y,
      matte_info->width,matte_info->height);
  else
    {
      (void) XSetForeground(display,window_info->widget_context,
        window_info->pixel_info->trough_color.pixel);
      (void) XFillRectangle(display,window_info->id,window_info->widget_context,
        matte_info->x,matte_info->y,matte_info->width,matte_info->height);
    }
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X D r a w M a t t e T e x t                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDrawMatteText() draws a matte with text.  If the text exceeds the extents
%  of the text, a portion of the text relative to the cursor is displayed.
%
%  The format of the XDrawMatteText function is:
%
%      XDrawMatteText(display,window_info,text_info)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o text_info: Specifies a pointer to a XWidgetInfo structure.  It
%      contains the extents of the text.
%
*/
static void XDrawMatteText(Display *display,const XWindowInfo *window_info,
  XWidgetInfo *text_info)
{
  const char
    *text;

  int
    n,
    x,
    y;

  register int
    i;

  unsigned int
    height,
    width;

  XFontStruct
    *font_info;

  XRectangle
    crop_info;

  /*
    Clear the text area.
  */
  XSetMatteColor(display,window_info,MagickFalse);
  (void) XFillRectangle(display,window_info->id,window_info->widget_context,
    text_info->x,text_info->y,text_info->width,text_info->height);
  if (text_info->text == (char *) NULL)
    return;
  XSetTextColor(display,window_info,text_info->highlight);
  font_info=window_info->font_info;
  x=text_info->x+(QuantumMargin >> 2);
  y=text_info->y+font_info->ascent+(text_info->height >> 2);
  width=text_info->width-(QuantumMargin >> 1);
  height=(unsigned int) (font_info->ascent+font_info->descent);
  if (*text_info->text == '\0')
    {
      /*
        No text-- just draw cursor.
      */
      (void) XDrawLine(display,window_info->id,window_info->annotate_context,
        x,y+3,x,y-height+3);
      return;
    }
  /*
    Set cropping region.
  */
  crop_info.width=(unsigned short) text_info->width;
  crop_info.height=(unsigned short) text_info->height;
  crop_info.x=text_info->x;
  crop_info.y=text_info->y;
  /*
    Determine beginning of the visible text.
  */
  if (text_info->cursor < text_info->marker)
    text_info->marker=text_info->cursor;
  else
    {
      text=text_info->marker;
      if (XTextWidth(font_info,(char *) text,(int) (text_info->cursor-text)) >
          (int) width)
        {
          text=text_info->text;
          for (i=0; i < Extent(text); i++)
          {
            n=XTextWidth(font_info,(char *) text+i,(int)
              (text_info->cursor-text-i));
            if (n <= (int) width)
              break;
          }
          text_info->marker=(char *) text+i;
        }
    }
  /*
    Draw text and cursor.
  */
  if (text_info->highlight == MagickFalse)
    {
      (void) XSetClipRectangles(display,window_info->widget_context,0,0,
        &crop_info,1,Unsorted);
      (void) XDrawString(display,window_info->id,window_info->widget_context,
        x,y,text_info->marker,Extent(text_info->marker));
      (void) XSetClipMask(display,window_info->widget_context,None);
    }
  else
    {
      (void) XSetClipRectangles(display,window_info->annotate_context,0,0,
        &crop_info,1,Unsorted);
      width=WidgetTextWidth(font_info,text_info->marker);
      (void) XFillRectangle(display,window_info->id,
        window_info->annotate_context,x,y-font_info->ascent,width,height);
      (void) XSetClipMask(display,window_info->annotate_context,None);
      (void) XSetClipRectangles(display,window_info->highlight_context,0,0,
        &crop_info,1,Unsorted);
      (void) XDrawString(display,window_info->id,
        window_info->highlight_context,x,y,text_info->marker,
        Extent(text_info->marker));
      (void) XSetClipMask(display,window_info->highlight_context,None);
    }
  x+=XTextWidth(font_info,text_info->marker,(int)
    (text_info->cursor-text_info->marker));
  (void) XDrawLine(display,window_info->id,window_info->annotate_context,x,y+3,
    x,y-height+3);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X D r a w T r i a n g l e E a s t                                         %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDrawTriangleEast() draws a triangle with a highlighted left bevel and a
%  shadowed right and lower bevel.  The highlighted and shadowed bevels create
%  a 3-D effect.
%
%  The format of the XDrawTriangleEast function is:
%
%      XDrawTriangleEast(display,window_info,triangle_info)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o triangle_info: Specifies a pointer to a XWidgetInfo structure.  It
%      contains the extents of the triangle.
%
*/
static void XDrawTriangleEast(Display *display,const XWindowInfo *window_info,
  const XWidgetInfo *triangle_info)
{
  int
    x1,
    x2,
    x3,
    y1,
    y2,
    y3;

  unsigned int
    bevel_width;

  XFontStruct
    *font_info;

  XPoint
    points[4];

  /*
    Draw triangle matte.
  */
  x1=triangle_info->x;
  y1=triangle_info->y;
  x2=triangle_info->x+triangle_info->width;
  y2=triangle_info->y+(triangle_info->height >> 1);
  x3=triangle_info->x;
  y3=triangle_info->y+triangle_info->height;
  bevel_width=triangle_info->bevel_width;
  points[0].x=x1;
  points[0].y=y1;
  points[1].x=x2;
  points[1].y=y2;
  points[2].x=x3;
  points[2].y=y3;
  XSetMatteColor(display,window_info,triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,3,Complex,CoordModeOrigin);
  /*
    Draw bottom bevel.
  */
  points[0].x=x2;
  points[0].y=y2;
  points[1].x=x3;
  points[1].y=y3;
  points[2].x=x3-bevel_width;
  points[2].y=y3+bevel_width;
  points[3].x=x2+bevel_width;
  points[3].y=y2;
  XSetBevelColor(display,window_info,!triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,4,Complex,CoordModeOrigin);
  /*
    Draw Left bevel.
  */
  points[0].x=x3;
  points[0].y=y3;
  points[1].x=x1;
  points[1].y=y1;
  points[2].x=x1-bevel_width+1;
  points[2].y=y1-bevel_width;
  points[3].x=x3-bevel_width+1;
  points[3].y=y3+bevel_width;
  XSetBevelColor(display,window_info,triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,4,Complex,CoordModeOrigin);
  /*
    Draw top bevel.
  */
  points[0].x=x1;
  points[0].y=y1;
  points[1].x=x2;
  points[1].y=y2;
  points[2].x=x2+bevel_width;
  points[2].y=y2;
  points[3].x=x1-bevel_width;
  points[3].y=y1-bevel_width;
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,4,Complex,CoordModeOrigin);
  (void) XSetFillStyle(display,window_info->widget_context,FillSolid);
  if (triangle_info->text == (char *) NULL)
    return;
  /*
    Write label to right of triangle.
  */
  font_info=window_info->font_info;
  XSetTextColor(display,window_info,MagickTrue);
  x1=triangle_info->x+triangle_info->width+triangle_info->bevel_width+
    (QuantumMargin >> 1);
  y1=triangle_info->y+((triangle_info->height-
    (font_info->ascent+font_info->descent)) >> 1)+font_info->ascent;
  (void) XDrawString(display,window_info->id,window_info->widget_context,x1,y1,
    triangle_info->text,Extent(triangle_info->text));
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X D r a w T r i a n g l e N o r t h                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDrawTriangleNorth() draws a triangle with a highlighted left bevel and a
%  shadowed right and lower bevel.  The highlighted and shadowed bevels create
%  a 3-D effect.
%
%  The format of the XDrawTriangleNorth function is:
%
%      XDrawTriangleNorth(display,window_info,triangle_info)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o triangle_info: Specifies a pointer to a XWidgetInfo structure.  It
%      contains the extents of the triangle.
%
*/
static void XDrawTriangleNorth(Display *display,const XWindowInfo *window_info,
  const XWidgetInfo *triangle_info)
{
  int
    x1,
    x2,
    x3,
    y1,
    y2,
    y3;

  unsigned int
    bevel_width;

  XPoint
    points[4];

  /*
    Draw triangle matte.
  */
  x1=triangle_info->x;
  y1=triangle_info->y+triangle_info->height;
  x2=triangle_info->x+(triangle_info->width >> 1);
  y2=triangle_info->y;
  x3=triangle_info->x+triangle_info->width;
  y3=triangle_info->y+triangle_info->height;
  bevel_width=triangle_info->bevel_width;
  points[0].x=x1;
  points[0].y=y1;
  points[1].x=x2;
  points[1].y=y2;
  points[2].x=x3;
  points[2].y=y3;
  XSetMatteColor(display,window_info,triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,3,Complex,CoordModeOrigin);
  /*
    Draw left bevel.
  */
  points[0].x=x1;
  points[0].y=y1;
  points[1].x=x2;
  points[1].y=y2;
  points[2].x=x2;
  points[2].y=y2-bevel_width-2;
  points[3].x=x1-bevel_width-1;
  points[3].y=y1+bevel_width;
  XSetBevelColor(display,window_info,triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,4,Complex,CoordModeOrigin);
  /*
    Draw right bevel.
  */
  points[0].x=x2;
  points[0].y=y2;
  points[1].x=x3;
  points[1].y=y3;
  points[2].x=x3+bevel_width;
  points[2].y=y3+bevel_width;
  points[3].x=x2;
  points[3].y=y2-bevel_width;
  XSetBevelColor(display,window_info,!triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,4,Complex,CoordModeOrigin);
  /*
    Draw lower bevel.
  */
  points[0].x=x3;
  points[0].y=y3;
  points[1].x=x1;
  points[1].y=y1;
  points[2].x=x1-bevel_width;
  points[2].y=y1+bevel_width;
  points[3].x=x3+bevel_width;
  points[3].y=y3+bevel_width;
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,4,Complex,CoordModeOrigin);
  (void) XSetFillStyle(display,window_info->widget_context,FillSolid);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X D r a w T r i a n g l e S o u t h                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDrawTriangleSouth() draws a border with a highlighted left and right bevel
%  and a shadowed lower bevel.  The highlighted and shadowed bevels create a
%  3-D effect.
%
%  The format of the XDrawTriangleSouth function is:
%
%      XDrawTriangleSouth(display,window_info,triangle_info)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o triangle_info: Specifies a pointer to a XWidgetInfo structure.  It
%      contains the extents of the triangle.
%
*/
static void XDrawTriangleSouth(Display *display,const XWindowInfo *window_info,
  const XWidgetInfo *triangle_info)
{
  int
    x1,
    x2,
    x3,
    y1,
    y2,
    y3;

  unsigned int
    bevel_width;

  XPoint
    points[4];

  /*
    Draw triangle matte.
  */
  x1=triangle_info->x;
  y1=triangle_info->y;
  x2=triangle_info->x+(triangle_info->width >> 1);
  y2=triangle_info->y+triangle_info->height;
  x3=triangle_info->x+triangle_info->width;
  y3=triangle_info->y;
  bevel_width=triangle_info->bevel_width;
  points[0].x=x1;
  points[0].y=y1;
  points[1].x=x2;
  points[1].y=y2;
  points[2].x=x3;
  points[2].y=y3;
  XSetMatteColor(display,window_info,triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,3,Complex,CoordModeOrigin);
  /*
    Draw top bevel.
  */
  points[0].x=x3;
  points[0].y=y3;
  points[1].x=x1;
  points[1].y=y1;
  points[2].x=x1-bevel_width;
  points[2].y=y1-bevel_width;
  points[3].x=x3+bevel_width;
  points[3].y=y3-bevel_width;
  XSetBevelColor(display,window_info,triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,4,Complex,CoordModeOrigin);
  /*
    Draw right bevel.
  */
  points[0].x=x2;
  points[0].y=y2;
  points[1].x=x3+1;
  points[1].y=y3-bevel_width;
  points[2].x=x3+bevel_width;
  points[2].y=y3-bevel_width;
  points[3].x=x2;
  points[3].y=y2+bevel_width;
  XSetBevelColor(display,window_info,!triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,4,Complex,CoordModeOrigin);
  /*
    Draw left bevel.
  */
  points[0].x=x1;
  points[0].y=y1;
  points[1].x=x2;
  points[1].y=y2;
  points[2].x=x2;
  points[2].y=y2+bevel_width;
  points[3].x=x1-bevel_width;
  points[3].y=y1-bevel_width;
  XSetBevelColor(display,window_info,triangle_info->raised);
  (void) XFillPolygon(display,window_info->id,window_info->widget_context,
    points,4,Complex,CoordModeOrigin);
  (void) XSetFillStyle(display,window_info->widget_context,FillSolid);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X D r a w W i d g e t T e x t                                             %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDrawWidgetText() first clears the widget and draws a text string justifed
%  left (or center) in the x-direction and centered within the y-direction.
%
%  The format of the XDrawWidgetText function is:
%
%      XDrawWidgetText(display,window_info,text_info)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a XWindowText structure.
%
%    o text_info: Specifies a pointer to XWidgetInfo structure.
%
*/
static void XDrawWidgetText(Display *display,const XWindowInfo *window_info,
  XWidgetInfo *text_info)
{
  GC
    widget_context;

  int
    x,
    y;

  unsigned int
    height,
    width;

  XFontStruct
    *font_info;

  XRectangle
    crop_info;

  /*
    Clear the text area.
  */
  widget_context=window_info->annotate_context;
  if (text_info->raised)
    (void) XClearArea(display,window_info->id,text_info->x,text_info->y,
      text_info->width,text_info->height,MagickFalse);
  else
    {
      (void) XFillRectangle(display,window_info->id,widget_context,text_info->x,
        text_info->y,text_info->width,text_info->height);
      widget_context=window_info->highlight_context;
    }
  if (text_info->text == (char *) NULL)
    return;
  if (*text_info->text == '\0')
    return;
  /*
    Set cropping region.
  */
  font_info=window_info->font_info;
  crop_info.width=(unsigned short) text_info->width;
  crop_info.height=(unsigned short) text_info->height;
  crop_info.x=text_info->x;
  crop_info.y=text_info->y;
  /*
    Draw text.
  */
  width=WidgetTextWidth(font_info,text_info->text);
  x=text_info->x+(QuantumMargin >> 1);
  if (text_info->center)
    x=text_info->x+(text_info->width >> 1)-(width >> 1);
  if (text_info->raised)
    if (width > (text_info->width-QuantumMargin))
      x+=(text_info->width-QuantumMargin-width);
  height=(unsigned int) (font_info->ascent+font_info->descent);
  y=text_info->y+((text_info->height-height) >> 1)+font_info->ascent;
  (void) XSetClipRectangles(display,widget_context,0,0,&crop_info,1,Unsorted);
  (void) XDrawString(display,window_info->id,widget_context,x,y,text_info->text,
    Extent(text_info->text));
  (void) XSetClipMask(display,widget_context,None);
  if (x < text_info->x)
    (void) XDrawLine(display,window_info->id,window_info->annotate_context,
      text_info->x,text_info->y,text_info->x,text_info->y+text_info->height-1);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X E d i t T e x t                                                         %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XEditText() edits a text string as indicated by the key symbol.
%
%  The format of the XEditText function is:
%
%      XEditText(display,text_info,key_symbol,text,state)
%
%  A description of each parameter follows:
%
%    o display: Specifies a connection to an X server;  returned from
%      XOpenDisplay.
%
%    o text_info: Specifies a pointer to a XWidgetInfo structure.  It
%      contains the extents of the text.
%
%    o key_symbol:  A X11 KeySym that indicates what editing function to
%      perform to the text.
%
%    o text: A character string to insert into the text.
%
%    o state:  An unsigned long that indicates whether the key symbol is a
%      control character or not.
%
*/
static void XEditText(Display *display,XWidgetInfo *text_info,
  const KeySym key_symbol,char *text,const unsigned long state)
{
  switch ((int) key_symbol)
  {
    case XK_BackSpace:
    case XK_Delete:
    {
      if (text_info->highlight)
        {
          /*
            Erase the entire line of text.
          */
          *text_info->text='\0';
          text_info->cursor=text_info->text;
          text_info->marker=text_info->text;
          text_info->highlight=MagickFalse;
        }
      /*
        Erase one character.
      */
      if (text_info->cursor != text_info->text)
        {
          text_info->cursor--;
          (void) CopyMagickString(text_info->cursor,text_info->cursor+1,
            MaxTextExtent);
          text_info->highlight=MagickFalse;
          break;
        }
    }
    case XK_Left:
    case XK_KP_Left:
    {
      /*
        Move cursor one position left.
      */
      if (text_info->cursor == text_info->text)
        break;
      text_info->cursor--;
      break;
    }
    case XK_Right:
    case XK_KP_Right:
    {
      /*
        Move cursor one position right.
      */
      if (text_info->cursor == (text_info->text+Extent(text_info->text)))
        break;
      text_info->cursor++;
      break;
    }
    default:
    {
      register char
        *p,
        *q;

      register int
        i;

      if (state & ControlState)
        break;
      if (*text == '\0')
        break;
      if ((Extent(text_info->text)+1) >= (long) MaxTextExtent)
        (void) XBell(display,0);
      else
        {
          if (text_info->highlight)
            {
              /*
                Erase the entire line of text.
              */
              *text_info->text='\0';
              text_info->cursor=text_info->text;
              text_info->marker=text_info->text;
              text_info->highlight=MagickFalse;
            }
          /*
            Insert a string into the text.
          */
          q=text_info->text+Extent(text_info->text)+strlen(text);
          for (i=0; i <= Extent(text_info->cursor); i++)
          {
            *q=(*(q-Extent(text)));
            q--;
          }
          p=text;
          for (i=0; i < Extent(text); i++)
            *text_info->cursor++=(*p++);
        }
      break;
    }
  }
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X G e t W i d g e t I n f o                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XGetWidgetInfo() initializes the XWidgetInfo structure.
%
%  The format of the XGetWidgetInfo function is:
%
%      XGetWidgetInfo(text,widget_info)
%
%  A description of each parameter follows:
%
%    o text: A string of characters associated with the widget.
%
%    o widget_info: Specifies a pointer to a X11 XWidgetInfo structure.
%
*/
static void XGetWidgetInfo(const char *text,XWidgetInfo *widget_info)
{
  /*
    Initialize widget info.
  */
  widget_info->id=(~0);
  widget_info->bevel_width=3;
  widget_info->width=1;
  widget_info->height=1;
  widget_info->x=0;
  widget_info->y=0;
  widget_info->min_y=0;
  widget_info->max_y=0;
  widget_info->raised=MagickTrue;
  widget_info->active=MagickFalse;
  widget_info->center=MagickTrue;
  widget_info->trough=MagickFalse;
  widget_info->highlight=MagickFalse;
  widget_info->text=(char *) text;
  widget_info->cursor=(char *) text;
  if (text != (char *) NULL)
    widget_info->cursor+=Extent(text);
  widget_info->marker=(char *) text;
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X H i g h l i g h t W i d g e t                                           %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XHighlightWidget() draws a highlighted border around a window.
%
%  The format of the XHighlightWidget function is:
%
%      XHighlightWidget(display,window_info,x,y)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o x: Specifies an integer representing the rectangle offset in the
%      x-direction.
%
%    o y: Specifies an integer representing the rectangle offset in the
%      y-direction.
%
*/
static void XHighlightWidget(Display *display,const XWindowInfo *window_info,
  const int x,const int y)
{
  /*
    Draw the widget highlighting rectangle.
  */
  XSetBevelColor(display,window_info,MagickTrue);
  (void) XDrawRectangle(display,window_info->id,window_info->widget_context,x,y,
    window_info->width-(x << 1),window_info->height-(y << 1));
  (void) XDrawRectangle(display,window_info->id,window_info->widget_context,
    x-1,y-1,window_info->width-(x << 1)+1,window_info->height-(y << 1)+1);
  XSetBevelColor(display,window_info,MagickFalse);
  (void) XDrawRectangle(display,window_info->id,window_info->widget_context,
    x-1,y-1,window_info->width-(x << 1),window_info->height-(y << 1));
  (void) XSetFillStyle(display,window_info->widget_context,FillSolid);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X S c r e e n E v e n t                                                   %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XScreenEvent() returns MagickTrue if the any event on the X server queue is
%  associated with the widget window.
%
%  The format of the XScreenEvent function is:
%
%      int XScreenEvent(Display *display,XEvent *event,char *data)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o event: Specifies a pointer to a X11 XEvent structure.
%
%    o data: Specifies a pointer to a XWindows structure.
%
*/

#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif

static int XScreenEvent(Display *display,XEvent *event,char *data)
{
  XWindows
    *windows;

  windows=(XWindows *) data;
  if (event->xany.window == windows->popup.id)
    {
      if (event->type == MapNotify)
        windows->popup.mapped=MagickTrue;
      if (event->type == UnmapNotify)
        windows->popup.mapped=MagickFalse;
      return(MagickTrue);
    }
  if (event->xany.window == windows->widget.id)
    {
      if (event->type == MapNotify)
        windows->widget.mapped=MagickTrue;
      if (event->type == UnmapNotify)
        windows->widget.mapped=MagickFalse;
      return(MagickTrue);
    }
  switch (event->type)
  {
    case ButtonPress:
    {
      if ((event->xbutton.button == Button3) &&
          (event->xbutton.state & Mod1Mask))
        {
          /*
            Convert Alt-Button3 to Button2.
          */
          event->xbutton.button=Button2;
          event->xbutton.state&=(~Mod1Mask);
        }
      return(MagickTrue);
    }
    case Expose:
    {
      if (event->xexpose.window == windows->image.id)
        {
          XRefreshWindow(display,&windows->image,event);
          break;
        }
      if (event->xexpose.window == windows->magnify.id)
        if (event->xexpose.count == 0)
          if (windows->magnify.mapped)
            {
              XMakeMagnifyImage(display,windows);
              break;
            }
      if (event->xexpose.window == windows->command.id)
        if (event->xexpose.count == 0)
          {
            (void) XCommandWidget(display,windows,(const char **) NULL,event);
            break;
          }
      break;
    }
    case FocusOut:
    {
      /*
        Set input focus for backdrop window.
      */
      if (event->xfocus.window == windows->image.id)
        (void) XSetInputFocus(display,windows->image.id,RevertToNone,
          CurrentTime);
      return(MagickTrue);
    }
    case ButtonRelease:
    case KeyPress:
    case KeyRelease:
    case MotionNotify:
    case SelectionNotify:
      return(MagickTrue);
    default:
      break;
  }
  return(MagickFalse);
}

#if defined(__cplusplus) || defined(c_plusplus)
}
#endif

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X S e t B e v e l C o l o r                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XSetBevelColor() sets the graphic context for drawing a beveled border.
%
%  The format of the XSetBevelColor function is:
%
%      XSetBevelColor(display,window_info,raised)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o raised: A value other than zero indicates the color show be a
%      "highlight" color, otherwise the "shadow" color is set.
%
*/
static void XSetBevelColor(Display *display,const XWindowInfo *window_info,
  const MagickStatusType raised)
{
  if (window_info->depth == 1)
    {
      Pixmap
        stipple;

      /*
        Monochrome window.
      */
      (void) XSetBackground(display,window_info->widget_context,
        XBlackPixel(display,window_info->screen));
      (void) XSetForeground(display,window_info->widget_context,
        XWhitePixel(display,window_info->screen));
      (void) XSetFillStyle(display,window_info->widget_context,
        FillOpaqueStippled);
      stipple=window_info->highlight_stipple;
      if (raised == MagickFalse)
        stipple=window_info->shadow_stipple;
      (void) XSetStipple(display,window_info->widget_context,stipple);
    }
  else
    if (raised)
      (void) XSetForeground(display,window_info->widget_context,
        window_info->pixel_info->highlight_color.pixel);
    else
      (void) XSetForeground(display,window_info->widget_context,
        window_info->pixel_info->shadow_color.pixel);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X S e t M a t t e C o l o r                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XSetMatteColor() sets the graphic context for drawing the matte.
%
%  The format of the XSetMatteColor function is:
%
%      XSetMatteColor(display,window_info,raised)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o raised: A value other than zero indicates the matte is active.
%
*/
static void XSetMatteColor(Display *display,const XWindowInfo *window_info,
  const MagickStatusType raised)
{
  if (window_info->depth == 1)
    {
      /*
        Monochrome window.
      */
      if (raised)
        (void) XSetForeground(display,window_info->widget_context,
          XWhitePixel(display,window_info->screen));
      else
        (void) XSetForeground(display,window_info->widget_context,
          XBlackPixel(display,window_info->screen));
    }
  else
    if (raised)
      (void) XSetForeground(display,window_info->widget_context,
        window_info->pixel_info->matte_color.pixel);
    else
      (void) XSetForeground(display,window_info->widget_context,
        window_info->pixel_info->depth_color.pixel);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+   X S e t T e x t C o l o r                                                 %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XSetTextColor() sets the graphic context for drawing text on a matte.
%
%  The format of the XSetTextColor function is:
%
%      XSetTextColor(display,window_info,raised)
%
%  A description of each parameter follows:
%
%    o display: Specifies a pointer to the Display structure;  returned from
%      XOpenDisplay.
%
%    o window_info: Specifies a pointer to a X11 XWindowInfo structure.
%
%    o raised: A value other than zero indicates the color show be a
%      "highlight" color, otherwise the "shadow" color is set.
%
*/
static void XSetTextColor(Display *display,const XWindowInfo *window_info,
  const MagickStatusType raised)
{
  long
    foreground,
    matte;

  if (window_info->depth == 1)
    {
      /*
        Monochrome window.
      */
      if (raised)
        (void) XSetForeground(display,window_info->widget_context,
          XBlackPixel(display,window_info->screen));
      else
        (void) XSetForeground(display,window_info->widget_context,
          XWhitePixel(display,window_info->screen));
      return;
    }
  foreground=(long) XPixelIntensity(&window_info->pixel_info->foreground_color);
  matte=(long) XPixelIntensity(&window_info->pixel_info->matte_color);
  if (MagickAbsoluteValue(foreground-matte) > (65535L >> 3))
    (void) XSetForeground(display,window_info->widget_context,
      window_info->pixel_info->foreground_color.pixel);
  else
    (void) XSetForeground(display,window_info->widget_context,
      window_info->pixel_info->background_color.pixel);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   X C o l o r B r o w s e r W i d g e t                                     %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XColorBrowserWidget() displays a Color Browser widget with a color query
%  to the user.  The user keys a reply and presses the Action or Cancel button
%  to exit.  The typed text is returned as the reply function parameter.
%
%  The format of the XColorBrowserWidget method is:
%
%      void XColorBrowserWidget(Display *display,XWindows *windows,
%        const char *action,char *reply)
%
%  A description of each parameter follows:
%
%    o display: Specifies a connection to an X server;  returned from
%      XOpenDisplay.
%
%    o window: Specifies a pointer to a XWindows structure.
%
%    o action: Specifies a pointer to the action of this widget.
%
%    o reply: the response from the user is returned in this parameter.
%
*/
MagickExport void XColorBrowserWidget(Display *display,XWindows *windows,
  const char *action,char *reply)
{
#define CancelButtonText  "Cancel"
#define ColornameText  "Name:"
#define ColorPatternText  "Pattern:"
#define GrabButtonText  "Grab"
#define ResetButtonText  "Reset"

  char
    **colorlist,
    primary_selection[MaxTextExtent],
    reset_pattern[MaxTextExtent],
    text[MaxTextExtent];

  ExceptionInfo
    *exception;

  int
    x,
    y;

  register int
    i;

  static char
    glob_pattern[MaxTextExtent] = "*";

  static MagickStatusType
    mask = (MagickStatusType) (CWWidth | CWHeight | CWX | CWY);

  Status
    status;

  unsigned int
    height,
    text_width,
    visible_colors,
    width;

  unsigned long
    colors,
    delay,
    state;

  XColor
    color;

  XEvent
    event;

  XFontStruct
    *font_info;

  XTextProperty
    window_name;

  XWidgetInfo
    action_info,
    cancel_info,
    expose_info,
    grab_info,
    list_info,
    mode_info,
    north_info,
    reply_info,
    reset_info,
    scroll_info,
    selection_info,
    slider_info,
    south_info,
    text_info;

  XWindowChanges
    window_changes;

  /*
    Get color list and sort in ascending order.
  */
  assert(display != (Display *) NULL);
  assert(windows != (XWindows *) NULL);
  assert(action != (char *) NULL);
  assert(reply != (char *) NULL);
  (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",action);
  XSetCursorState(display,windows,MagickTrue);
  XCheckRefreshWindows(display,windows);
  (void) CopyMagickString(reset_pattern,"*",MaxTextExtent);
  exception=AcquireExceptionInfo();
  colorlist=GetColorList(glob_pattern,&colors,exception);
  if (colorlist == (char **) NULL)
    {
      /*
        Pattern failed, obtain all the colors.
      */
      (void) CopyMagickString(glob_pattern,"*",MaxTextExtent);
      colorlist=GetColorList(glob_pattern,&colors,exception);
      if (colorlist == (char **) NULL)
        {
          XNoticeWidget(display,windows,"Unable to obtain colors names:",
            glob_pattern);
          (void) XDialogWidget(display,windows,action,"Enter color name:",
            reply);
          return;
        }
    }
  /*
    Determine Color Browser widget attributes.
  */
  font_info=windows->widget.font_info;
  text_width=0;
  for (i=0; i < (long) colors; i++)
    if (WidgetTextWidth(font_info,colorlist[i]) > text_width)
      text_width=WidgetTextWidth(font_info,colorlist[i]);
  width=WidgetTextWidth(font_info,(char *) action);
  if (WidgetTextWidth(font_info,CancelButtonText) > width)
    width=WidgetTextWidth(font_info,CancelButtonText);
  if (WidgetTextWidth(font_info,ResetButtonText) > width)
    width=WidgetTextWidth(font_info,ResetButtonText);
  if (WidgetTextWidth(font_info,GrabButtonText) > width)
    width=WidgetTextWidth(font_info,GrabButtonText);
  width+=QuantumMargin;
  if (WidgetTextWidth(font_info,ColorPatternText) > width)
    width=WidgetTextWidth(font_info,ColorPatternText);
  if (WidgetTextWidth(font_info,ColornameText) > width)
    width=WidgetTextWidth(font_info,ColornameText);
  height=(unsigned int) (font_info->ascent+font_info->descent);
  /*
    Position Color Browser widget.
  */
  windows->widget.width=(unsigned int)
    (width+MagickMin((int) text_width,(int) MaxTextWidth)+6*QuantumMargin);
  windows->widget.min_width=(unsigned int)
    (width+MinTextWidth+4*QuantumMargin);
  if (windows->widget.width < windows->widget.min_width)
    windows->widget.width=windows->widget.min_width;
  windows->widget.height=(unsigned int)
    ((81*height) >> 2)+((13*QuantumMargin) >> 1)+4;
  windows->widget.min_height=(unsigned int)
    (((23*height) >> 1)+((13*QuantumMargin) >> 1)+4);
  if (windows->widget.height < windows->widget.min_height)
    windows->widget.height=windows->widget.min_height;
  XConstrainWindowPosition(display,&windows->widget);
  /*
    Map Color Browser widget.
  */
  (void) CopyMagickString(windows->widget.name,"Browse and Select a Color",
    MaxTextExtent);
  status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
  if (status != False)
    {
      XSetWMName(display,windows->widget.id,&window_name);
      XSetWMIconName(display,windows->widget.id,&window_name);
      (void) XFree((void *) window_name.value);
    }
  window_changes.width=(int) windows->widget.width;
  window_changes.height=(int) windows->widget.height;
  window_changes.x=windows->widget.x;
  window_changes.y=windows->widget.y;
  (void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
    mask,&window_changes);
  (void) XMapRaised(display,windows->widget.id);
  windows->widget.mapped=MagickFalse;
  /*
    Respond to X events.
  */
  XGetWidgetInfo((char *) NULL,&slider_info);
  XGetWidgetInfo((char *) NULL,&north_info);
  XGetWidgetInfo((char *) NULL,&south_info);
  XGetWidgetInfo((char *) NULL,&expose_info);
  visible_colors=0;
  delay=SuspendTime << 2;
  state=UpdateConfigurationState;
  do
  {
    if (state & UpdateConfigurationState)
      {
        int
          id;

        /*
          Initialize button information.
        */
        XGetWidgetInfo(CancelButtonText,&cancel_info);
        cancel_info.width=width;
        cancel_info.height=(unsigned int) ((3*height) >> 1);
        cancel_info.x=(int)
          (windows->widget.width-cancel_info.width-QuantumMargin-2);
        cancel_info.y=(int)
          (windows->widget.height-cancel_info.height-QuantumMargin);
        XGetWidgetInfo(action,&action_info);
        action_info.width=width;
        action_info.height=(unsigned int) ((3*height) >> 1);
        action_info.x=cancel_info.x-(cancel_info.width+(QuantumMargin >> 1)+
          (action_info.bevel_width << 1));
        action_info.y=cancel_info.y;
        XGetWidgetInfo(GrabButtonText,&grab_info);
        grab_info.width=width;
        grab_info.height=(unsigned int) ((3*height) >> 1);
        grab_info.x=QuantumMargin;
        grab_info.y=((5*QuantumMargin) >> 1)+height;
        XGetWidgetInfo(ResetButtonText,&reset_info);
        reset_info.width=width;
        reset_info.height=(unsigned int) ((3*height) >> 1);
        reset_info.x=QuantumMargin;
        reset_info.y=grab_info.y+grab_info.height+QuantumMargin;
        /*
          Initialize reply information.
        */
        XGetWidgetInfo(reply,&reply_info);
        reply_info.raised=MagickFalse;
        reply_info.bevel_width--;
        reply_info.width=windows->widget.width-width-((6*QuantumMargin) >> 1);
        reply_info.height=height << 1;
        reply_info.x=(int) (width+(QuantumMargin << 1));
        reply_info.y=action_info.y-reply_info.height-QuantumMargin;
        /*
          Initialize mode information.
        */
        XGetWidgetInfo((char *) NULL,&mode_info);
        mode_info.active=MagickTrue;
        mode_info.bevel_width=0;
        mode_info.width=(unsigned int) (action_info.x-(QuantumMargin << 1));
        mode_info.height=action_info.height;
        mode_info.x=QuantumMargin;
        mode_info.y=action_info.y;
        /*
          Initialize scroll information.
        */
        XGetWidgetInfo((char *) NULL,&scroll_info);
        scroll_info.bevel_width--;
        scroll_info.width=height;
        scroll_info.height=(unsigned int) (reply_info.y-grab_info.y-
          (QuantumMargin >> 1));
        scroll_info.x=reply_info.x+(reply_info.width-scroll_info.width);
        scroll_info.y=grab_info.y-reply_info.bevel_width;
        scroll_info.raised=MagickFalse;
        scroll_info.trough=MagickTrue;
        north_info=scroll_info;
        north_info.raised=MagickTrue;
        north_info.width-=(north_info.bevel_width << 1);
        north_info.height=north_info.width-1;
        north_info.x+=north_info.bevel_width;
        north_info.y+=north_info.bevel_width;
        south_info=north_info;
        south_info.y=scroll_info.y+scroll_info.height-scroll_info.bevel_width-
          south_info.height;
        id=slider_info.id;
        slider_info=north_info;
        slider_info.id=id;
        slider_info.width-=2;
        slider_info.min_y=north_info.y+north_info.height+north_info.bevel_width+
          slider_info.bevel_width+2;
        slider_info.height=scroll_info.height-((slider_info.min_y-
          scroll_info.y+1) << 1)+4;
        visible_colors=scroll_info.height/(height+(height >> 3));
        if (colors > visible_colors)
          slider_info.height=(unsigned int)
            ((visible_colors*slider_info.height)/colors);
        slider_info.max_y=south_info.y-south_info.bevel_width-
          slider_info.bevel_width-2;
        slider_info.x=scroll_info.x+slider_info.bevel_width+1;
        slider_info.y=slider_info.min_y;
        expose_info=scroll_info;
        expose_info.y=slider_info.y;
        /*
          Initialize list information.
        */
        XGetWidgetInfo((char *) NULL,&list_info);
        list_info.raised=MagickFalse;
        list_info.bevel_width--;
        list_info.width=(unsigned int)
          (scroll_info.x-reply_info.x-(QuantumMargin >> 1));
        list_info.height=scroll_info.height;
        list_info.x=reply_info.x;
        list_info.y=scroll_info.y;
        if (windows->widget.mapped == MagickFalse)
          state|=JumpListState;
        /*
          Initialize text information.
        */
        *text='\0';
        XGetWidgetInfo(text,&text_info);
        text_info.center=MagickFalse;
        text_info.width=reply_info.width;
        text_info.height=height;
        text_info.x=list_info.x-(QuantumMargin >> 1);
        text_info.y=QuantumMargin;
        /*
          Initialize selection information.
        */
        XGetWidgetInfo((char *) NULL,&selection_info);
        selection_info.center=MagickFalse;
        selection_info.width=list_info.width;
        selection_info.height=(unsigned int) ((9*height) >> 3);
        selection_info.x=list_info.x;
        state&=(~UpdateConfigurationState);
      }
    if (state & RedrawWidgetState)
      {
        /*
          Redraw Color Browser window.
        */
        x=QuantumMargin;
        y=text_info.y+((text_info.height-height) >> 1)+font_info->ascent;
        (void) XDrawString(display,windows->widget.id,
          windows->widget.annotate_context,x,y,ColorPatternText,
          Extent(ColorPatternText));
        (void) CopyMagickString(text_info.text,glob_pattern,MaxTextExtent);
        XDrawWidgetText(display,&windows->widget,&text_info);
        XDrawBeveledButton(display,&windows->widget,&grab_info);
        XDrawBeveledButton(display,&windows->widget,&reset_info);
        XDrawBeveledMatte(display,&windows->widget,&list_info);
        XDrawBeveledMatte(display,&windows->widget,&scroll_info);
        XDrawTriangleNorth(display,&windows->widget,&north_info);
        XDrawBeveledButton(display,&windows->widget,&slider_info);
        XDrawTriangleSouth(display,&windows->widget,&south_info);
        x=QuantumMargin;
        y=reply_info.y+((reply_info.height-height) >> 1)+font_info->ascent;
        (void) XDrawString(display,windows->widget.id,
          windows->widget.annotate_context,x,y,ColornameText,
          Extent(ColornameText));
        XDrawBeveledMatte(display,&windows->widget,&reply_info);
        XDrawMatteText(display,&windows->widget,&reply_info);
        XDrawBeveledButton(display,&windows->widget,&action_info);
        XDrawBeveledButton(display,&windows->widget,&cancel_info);
        XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
        selection_info.id=(~0);
        state|=RedrawActionState;
        state|=RedrawListState;
        state&=(~RedrawWidgetState);
      }
    if (state & UpdateListState)
      {
        char
          **checklist;

        unsigned long
          number_colors;

        status=XParseColor(display,windows->widget.map_info->colormap,
          glob_pattern,&color);
        if ((status != False) || (strchr(glob_pattern,'-') != (char *) NULL))
          {
            /*
              Reply is a single color name-- exit.
            */
            (void) CopyMagickString(reply,glob_pattern,MaxTextExtent);
            (void) CopyMagickString(glob_pattern,reset_pattern,MaxTextExtent);
            action_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&action_info);
            break;
          }
        /*
          Update color list.
        */
        checklist=GetColorList(glob_pattern,&number_colors,exception);
        if (number_colors == 0)
          {
            (void) CopyMagickString(glob_pattern,reset_pattern,MaxTextExtent);
            (void) XBell(display,0);
          }
        else
          {
            for (i=0; i < (long) colors; i++)
              colorlist[i]=DestroyString(colorlist[i]);
            if (colorlist != (char **) NULL)
              colorlist=(char **) RelinquishMagickMemory(colorlist);
            colorlist=checklist;
            colors=number_colors;
          }
        /*
          Sort color list in ascending order.
        */
        slider_info.height=
          scroll_info.height-((slider_info.min_y-scroll_info.y+1) << 1)+1;
        if (colors > visible_colors)
          slider_info.height=(unsigned int)
            ((visible_colors*slider_info.height)/colors);
        slider_info.max_y=south_info.y-south_info.bevel_width-
          slider_info.bevel_width-2;
        slider_info.id=0;
        slider_info.y=slider_info.min_y;
        expose_info.y=slider_info.y;
        selection_info.id=(~0);
        list_info.id=(~0);
        state|=RedrawListState;
        /*
          Redraw color name & reply.
        */
        *reply_info.text='\0';
        reply_info.cursor=reply_info.text;
        (void) CopyMagickString(text_info.text,glob_pattern,MaxTextExtent);
        XDrawWidgetText(display,&windows->widget,&text_info);
        XDrawMatteText(display,&windows->widget,&reply_info);
        XDrawBeveledMatte(display,&windows->widget,&scroll_info);
        XDrawTriangleNorth(display,&windows->widget,&north_info);
        XDrawBeveledButton(display,&windows->widget,&slider_info);
        XDrawTriangleSouth(display,&windows->widget,&south_info);
        XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
        state&=(~UpdateListState);
      }
    if (state & JumpListState)
      {
        /*
          Jump scroll to match user color.
        */
        list_info.id=(~0);
        for (i=0; i < (long) colors; i++)
          if (LocaleCompare(colorlist[i],reply) >= 0)
            {
              list_info.id=LocaleCompare(colorlist[i],reply) == 0 ? i : ~0;
              break;
            }
        if ((i < slider_info.id) ||
            (i >= (int) (slider_info.id+visible_colors)))
          slider_info.id=i-(visible_colors >> 1);
        selection_info.id=(~0);
        state|=RedrawListState;
        state&=(~JumpListState);
      }
    if (state & RedrawListState)
      {
        /*
          Determine slider id and position.
        */
        if (slider_info.id >= (int) (colors-visible_colors))
          slider_info.id=(int) (colors-visible_colors);
        if ((slider_info.id < 0) || (colors <= visible_colors))
          slider_info.id=0;
        slider_info.y=slider_info.min_y;
        if (colors != 0)
          slider_info.y+=slider_info.id*(slider_info.max_y-
            slider_info.min_y+1)/colors;
        if (slider_info.id != selection_info.id)
          {
            /*
              Redraw scroll bar and file names.
            */
            selection_info.id=slider_info.id;
            selection_info.y=list_info.y+(height >> 3)+2;
            for (i=0; i < (int) visible_colors; i++)
            {
              selection_info.raised=(slider_info.id+i) != list_info.id ?
                MagickTrue : MagickFalse;
              selection_info.text=(char *) NULL;
              if ((slider_info.id+i) < (long) colors)
                selection_info.text=colorlist[slider_info.id+i];
              XDrawWidgetText(display,&windows->widget,&selection_info);
              selection_info.y+=(int) selection_info.height;
            }
            /*
              Update slider.
            */
            if (slider_info.y > expose_info.y)
              {
                expose_info.height=(unsigned int) slider_info.y-expose_info.y;
                expose_info.y=slider_info.y-expose_info.height-
                  slider_info.bevel_width-1;
              }
            else
              {
                expose_info.height=(unsigned int) expose_info.y-slider_info.y;
                expose_info.y=slider_info.y+slider_info.height+
                  slider_info.bevel_width+1;
              }
            XDrawTriangleNorth(display,&windows->widget,&north_info);
            XDrawMatte(display,&windows->widget,&expose_info);
            XDrawBeveledButton(display,&windows->widget,&slider_info);
            XDrawTriangleSouth(display,&windows->widget,&south_info);
            expose_info.y=slider_info.y;
          }
        state&=(~RedrawListState);
      }
    if (state & RedrawActionState)
      {
        static char
          colorname[MaxTextExtent];

        /*
          Display the selected color in a drawing area.
        */
        color=windows->widget.pixel_info->matte_color;
        (void) XParseColor(display,windows->widget.map_info->colormap,
          reply_info.text,&windows->widget.pixel_info->matte_color);
        XBestPixel(display,windows->widget.map_info->colormap,(XColor *) NULL,
          (unsigned int) windows->widget.visual_info->colormap_size,
          &windows->widget.pixel_info->matte_color);
        mode_info.text=colorname;
        (void) FormatMagickString(mode_info.text,MaxTextExtent,"#%02x%02x%02x",
          windows->widget.pixel_info->matte_color.red,
          windows->widget.pixel_info->matte_color.green,
          windows->widget.pixel_info->matte_color.blue);
        XDrawBeveledButton(display,&windows->widget,&mode_info);
        windows->widget.pixel_info->matte_color=color;
        state&=(~RedrawActionState);
      }
    /*
      Wait for next event.
    */
    if (north_info.raised && south_info.raised)
      (void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
    else
      {
        /*
          Brief delay before advancing scroll bar.
        */
        XDelay(display,delay);
        delay=SuspendTime;
        (void) XCheckIfEvent(display,&event,XScreenEvent,(char *) windows);
        if (north_info.raised == MagickFalse)
          if (slider_info.id > 0)
            {
              /*
                Move slider up.
              */
              slider_info.id--;
              state|=RedrawListState;
            }
        if (south_info.raised == MagickFalse)
          if (slider_info.id < (long) colors)
            {
              /*
                Move slider down.
              */
              slider_info.id++;
              state|=RedrawListState;
            }
        if (event.type != ButtonRelease)
          continue;
      }
    switch (event.type)
    {
      case ButtonPress:
      {
        if (MatteIsActive(slider_info,event.xbutton))
          {
            /*
              Track slider.
            */
            slider_info.active=MagickTrue;
            break;
          }
        if (MatteIsActive(north_info,event.xbutton))
          if (slider_info.id > 0)
            {
              /*
                Move slider up.
              */
              north_info.raised=MagickFalse;
              slider_info.id--;
              state|=RedrawListState;
              break;
            }
        if (MatteIsActive(south_info,event.xbutton))
          if (slider_info.id < (long) colors)
            {
              /*
                Move slider down.
              */
              south_info.raised=MagickFalse;
              slider_info.id++;
              state|=RedrawListState;
              break;
            }
        if (MatteIsActive(scroll_info,event.xbutton))
          {
            /*
              Move slider.
            */
            if (event.xbutton.y < slider_info.y)
              slider_info.id-=(visible_colors-1);
            else
              slider_info.id+=(visible_colors-1);
            state|=RedrawListState;
            break;
          }
        if (MatteIsActive(list_info,event.xbutton))
          {
            int
              id;

            /*
              User pressed list matte.
            */
            id=slider_info.id+(event.xbutton.y-(list_info.y+(height >> 1))+1)/
              selection_info.height;
            if (id >= (int) colors)
              break;
            (void) CopyMagickString(reply_info.text,colorlist[id],
              MaxTextExtent);
            reply_info.highlight=MagickFalse;
            reply_info.marker=reply_info.text;
            reply_info.cursor=reply_info.text+Extent(reply_info.text);
            XDrawMatteText(display,&windows->widget,&reply_info);
            state|=RedrawActionState;
            if (id == list_info.id)
              {
                (void) CopyMagickString(glob_pattern,reply_info.text,
                  MaxTextExtent);
                state|=UpdateListState;
              }
            selection_info.id=(~0);
            list_info.id=id;
            state|=RedrawListState;
            break;
          }
        if (MatteIsActive(grab_info,event.xbutton))
          {
            /*
              User pressed Grab button.
            */
            grab_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&grab_info);
            break;
          }
        if (MatteIsActive(reset_info,event.xbutton))
          {
            /*
              User pressed Reset button.
            */
            reset_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&reset_info);
            break;
          }
        if (MatteIsActive(mode_info,event.xbutton))
          {
            /*
              User pressed mode button.
            */
            (void) CopyMagickString(reply_info.text,mode_info.text,
              MaxTextExtent);
            (void) CopyMagickString(primary_selection,reply_info.text,
              MaxTextExtent);
            (void) XSetSelectionOwner(display,XA_PRIMARY,windows->widget.id,
              event.xbutton.time);
            reply_info.highlight=XGetSelectionOwner(display,XA_PRIMARY) ==
              windows->widget.id ? MagickTrue : MagickFalse;
            reply_info.marker=reply_info.text;
            reply_info.cursor=reply_info.text+Extent(reply_info.text);
            XDrawMatteText(display,&windows->widget,&reply_info);
            break;
          }
        if (MatteIsActive(action_info,event.xbutton))
          {
            /*
              User pressed action button.
            */
            action_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&action_info);
            break;
          }
        if (MatteIsActive(cancel_info,event.xbutton))
          {
            /*
              User pressed Cancel button.
            */
            cancel_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&cancel_info);
            break;
          }
        if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
          break;
        if (event.xbutton.button != Button2)
          {
            static Time
              click_time;

            /*
              Move text cursor to position of button press.
            */
            x=event.xbutton.x-reply_info.x-(QuantumMargin >> 2);
            for (i=1; i <= Extent(reply_info.marker); i++)
              if (XTextWidth(font_info,reply_info.marker,i) > x)
                break;
            reply_info.cursor=reply_info.marker+i-1;
            if (event.xbutton.time > (click_time+DoubleClick))
              reply_info.highlight=MagickFalse;
            else
              {
                /*
                  Become the XA_PRIMARY selection owner.
                */
                (void) CopyMagickString(primary_selection,reply_info.text,
                  MaxTextExtent);
                (void) XSetSelectionOwner(display,XA_PRIMARY,windows->widget.id,
                  event.xbutton.time);
                reply_info.highlight=XGetSelectionOwner(display,XA_PRIMARY) ==
                  windows->widget.id ? MagickTrue : MagickFalse;
              }
            XDrawMatteText(display,&windows->widget,&reply_info);
            click_time=event.xbutton.time;
            break;
          }
        /*
          Request primary selection.
        */
        (void) XConvertSelection(display,XA_PRIMARY,XA_STRING,XA_STRING,
          windows->widget.id,event.xbutton.time);
        break;
      }
      case ButtonRelease:
      {
        if (windows->widget.mapped == MagickFalse)
          break;
        if (north_info.raised == MagickFalse)
          {
            /*
              User released up button.
            */
            delay=SuspendTime << 2;
            north_info.raised=MagickTrue;
            XDrawTriangleNorth(display,&windows->widget,&north_info);
          }
        if (south_info.raised == MagickFalse)
          {
            /*
              User released down button.
            */
            delay=SuspendTime << 2;
            south_info.raised=MagickTrue;
            XDrawTriangleSouth(display,&windows->widget,&south_info);
          }
        if (slider_info.active)
          {
            /*
              Stop tracking slider.
            */
            slider_info.active=MagickFalse;
            break;
          }
        if (grab_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              if (MatteIsActive(grab_info,event.xbutton))
                {
                  /*
                    Select a pen color from the X server.
                  */
                  (void) XGetWindowColor(display,windows,reply_info.text);
                  reply_info.marker=reply_info.text;
                  reply_info.cursor=reply_info.text+Extent(reply_info.text);
                  XDrawMatteText(display,&windows->widget,&reply_info);
                  state|=RedrawActionState;
                }
            grab_info.raised=MagickTrue;
            XDrawBeveledButton(display,&windows->widget,&grab_info);
          }
        if (reset_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              if (MatteIsActive(reset_info,event.xbutton))
                {
                  (void) CopyMagickString(glob_pattern,reset_pattern,
                    MaxTextExtent);
                  state|=UpdateListState;
                }
            reset_info.raised=MagickTrue;
            XDrawBeveledButton(display,&windows->widget,&reset_info);
          }
        if (action_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              {
                if (MatteIsActive(action_info,event.xbutton))
                  {
                    if (*reply_info.text == '\0')
                      (void) XBell(display,0);
                    else
                      state|=ExitState;
                  }
              }
            action_info.raised=MagickTrue;
            XDrawBeveledButton(display,&windows->widget,&action_info);
          }
        if (cancel_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              if (MatteIsActive(cancel_info,event.xbutton))
                {
                  *reply_info.text='\0';
                  state|=ExitState;
                }
            cancel_info.raised=MagickTrue;
            XDrawBeveledButton(display,&windows->widget,&cancel_info);
          }
        if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
          break;
        break;
      }
      case ClientMessage:
      {
        /*
          If client window delete message, exit.
        */
        if (event.xclient.message_type != windows->wm_protocols)
          break;
        if (*event.xclient.data.l == (int) windows->wm_take_focus)
          {
            (void) XSetInputFocus(display,event.xclient.window,RevertToParent,
              (Time) event.xclient.data.l[1]);
            break;
          }
        if (*event.xclient.data.l != (int) windows->wm_delete_window)
          break;
        if (event.xclient.window == windows->widget.id)
          {
            *reply_info.text='\0';
            state|=ExitState;
            break;
          }
        break;
      }
      case ConfigureNotify:
      {
        /*
          Update widget configuration.
        */
        if (event.xconfigure.window != windows->widget.id)
          break;
        if ((event.xconfigure.width == (int) windows->widget.width) &&
            (event.xconfigure.height == (int) windows->widget.height))
          break;
        windows->widget.width=(unsigned int)
          MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
        windows->widget.height=(unsigned int)
          MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
        state|=UpdateConfigurationState;
        break;
      }
      case EnterNotify:
      {
        if (event.xcrossing.window != windows->widget.id)
          break;
        state&=(~InactiveWidgetState);
        break;
      }
      case Expose:
      {
        if (event.xexpose.window != windows->widget.id)
          break;
        if (event.xexpose.count != 0)
          break;
        state|=RedrawWidgetState;
        break;
      }
      case KeyPress:
      {
        static char
          command[MaxTextExtent];

        static int
          length;

        static KeySym
          key_symbol;

        /*
          Respond to a user key press.
        */
        if (event.xkey.window != windows->widget.id)
          break;
        length=XLookupString((XKeyEvent *) &event.xkey,command,
          (int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
        *(command+length)='\0';
        if (AreaIsActive(scroll_info,event.xkey))
          {
            /*
              Move slider.
            */
            switch ((int) key_symbol)
            {
              case XK_Home:
              case XK_KP_Home:
              {
                slider_info.id=0;
                break;
              }
              case XK_Up:
              case XK_KP_Up:
              {
                slider_info.id--;
                break;
              }
              case XK_Down:
              case XK_KP_Down:
              {
                slider_info.id++;
                break;
              }
              case XK_Prior:
              case XK_KP_Prior:
              {
                slider_info.id-=visible_colors;
                break;
              }
              case XK_Next:
              case XK_KP_Next:
              {
                slider_info.id+=visible_colors;
                break;
              }
              case XK_End:
              case XK_KP_End:
              {
                slider_info.id=(int) colors;
                break;
              }
            }
            state|=RedrawListState;
            break;
          }
        if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
          {
            /*
              Read new color or glob patterm.
            */
            if (*reply_info.text == '\0')
              break;
            (void) CopyMagickString(glob_pattern,reply_info.text,MaxTextExtent);
            state|=UpdateListState;
            break;
          }
        if (key_symbol == XK_Control_L)
          {
            state|=ControlState;
            break;
          }
        if (state & ControlState)
          switch ((int) key_symbol)
          {
            case XK_u:
            case XK_U:
            {
              /*
                Erase the entire line of text.
              */
              *reply_info.text='\0';
              reply_info.cursor=reply_info.text;
              reply_info.marker=reply_info.text;
              reply_info.highlight=MagickFalse;
              break;
            }
            default:
              break;
          }
        XEditText(display,&reply_info,key_symbol,command,state);
        XDrawMatteText(display,&windows->widget,&reply_info);
        state|=JumpListState;
        status=XParseColor(display,windows->widget.map_info->colormap,
          reply_info.text,&color);
        if (status != False)
          state|=RedrawActionState;
        break;
      }
      case KeyRelease:
      {
        static char
          command[MaxTextExtent];

        static KeySym
          key_symbol;

        /*
          Respond to a user key release.
        */
        if (event.xkey.window != windows->widget.id)
          break;
        (void) XLookupString((XKeyEvent *) &event.xkey,command,
          (int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
        if (key_symbol == XK_Control_L)
          state&=(~ControlState);
        break;
      }
      case LeaveNotify:
      {
        if (event.xcrossing.window != windows->widget.id)
          break;
        state|=InactiveWidgetState;
        break;
      }
      case MapNotify:
      {
        mask&=(~CWX);
        mask&=(~CWY);
        break;
      }
      case MotionNotify:
      {
        /*
          Discard pending button motion events.
        */
        while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
        if (slider_info.active)
          {
            /*
              Move slider matte.
            */
            slider_info.y=event.xmotion.y-
              ((slider_info.height+slider_info.bevel_width) >> 1)+1;
            if (slider_info.y < slider_info.min_y)
              slider_info.y=slider_info.min_y;
            if (slider_info.y > slider_info.max_y)
              slider_info.y=slider_info.max_y;
            slider_info.id=0;
            if (slider_info.y != slider_info.min_y)
              slider_info.id=(int) ((colors*(slider_info.y-
                slider_info.min_y+1))/(slider_info.max_y-slider_info.min_y+1));
            state|=RedrawListState;
            break;
          }
        if (state & InactiveWidgetState)
          break;
        if (grab_info.raised == MatteIsActive(grab_info,event.xmotion))
          {
            /*
              Grab button status changed.
            */
            grab_info.raised=!grab_info.raised;
            XDrawBeveledButton(display,&windows->widget,&grab_info);
            break;
          }
        if (reset_info.raised == MatteIsActive(reset_info,event.xmotion))
          {
            /*
              Reset button status changed.
            */
            reset_info.raised=!reset_info.raised;
            XDrawBeveledButton(display,&windows->widget,&reset_info);
            break;
          }
        if (action_info.raised == MatteIsActive(action_info,event.xmotion))
          {
            /*
              Action button status changed.
            */
            action_info.raised=action_info.raised == MagickFalse ?
              MagickTrue : MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&action_info);
            break;
          }
        if (cancel_info.raised == MatteIsActive(cancel_info,event.xmotion))
          {
            /*
              Cancel button status changed.
            */
            cancel_info.raised=cancel_info.raised == MagickFalse ?
              MagickTrue : MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&cancel_info);
            break;
          }
        break;
      }
      case SelectionClear:
      {
        reply_info.highlight=MagickFalse;
        XDrawMatteText(display,&windows->widget,&reply_info);
        break;
      }
      case SelectionNotify:
      {
        Atom
          type;

        int
          format;

        unsigned char
          *data;

        unsigned long
          after,
          length;

        /*
          Obtain response from primary selection.
        */
        if (event.xselection.property == (Atom) None)
          break;
        status=XGetWindowProperty(display,event.xselection.requestor,
          event.xselection.property,0L,2047L,MagickTrue,XA_STRING,&type,
          &format,&length,&after,&data);
        if ((status != Success) || (type != XA_STRING) || (format == 32) ||
            (length == 0))
          break;
        if ((Extent(reply_info.text)+length) >= MaxTextExtent)
          (void) XBell(display,0);
        else
          {
            /*
              Insert primary selection in reply text.
            */
            *(data+length)='\0';
            XEditText(display,&reply_info,(KeySym) XK_Insert,(char *) data,
              state);
            XDrawMatteText(display,&windows->widget,&reply_info);
            state|=JumpListState;
            state|=RedrawActionState;
          }
        (void) XFree((void *) data);
        break;
      }
      case SelectionRequest:
      {
        XSelectionEvent
          notify;

        XSelectionRequestEvent
          *request;

        if (reply_info.highlight == MagickFalse)
          break;
        /*
          Set primary selection.
        */
        request=(&(event.xselectionrequest));
        (void) XChangeProperty(request->display,request->requestor,
          request->property,request->target,8,PropModeReplace,
          (unsigned char *) primary_selection,Extent(primary_selection));
        notify.type=SelectionNotify;
        notify.send_event=MagickTrue;
        notify.display=request->display;
        notify.requestor=request->requestor;
        notify.selection=request->selection;
        notify.target=request->target;
        notify.time=request->time;
        if (request->property == None)
          notify.property=request->target;
        else
          notify.property=request->property;
        (void) XSendEvent(request->display,request->requestor,False,
          NoEventMask,(XEvent *) &notify);
      }
      default:
        break;
    }
  } while ((state & ExitState) == 0);
  XSetCursorState(display,windows,MagickFalse);
  (void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
  XCheckRefreshWindows(display,windows);
  /*
    Free color list.
  */
  for (i=0; i < (long) colors; i++)
    colorlist[i]=DestroyString(colorlist[i]);
  if (colorlist != (char **) NULL)
    colorlist=(char **) RelinquishMagickMemory(colorlist);
  exception=DestroyExceptionInfo(exception);
  if ((*reply == '\0') || (strchr(reply,'-') != (char *) NULL))
    return;
  status=XParseColor(display,windows->widget.map_info->colormap,reply,&color);
  if (status != False)
    return;
  XNoticeWidget(display,windows,"Color is unknown to X server:",reply);
  (void) CopyMagickString(reply,"gray",MaxTextExtent);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   X C o m m a n d W i d g e t                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XCommandWidget() maps a menu and returns the command pointed to by the user
%  when the button is released.
%
%  The format of the XCommandWidget method is:
%
%      int XCommandWidget(Display *display,XWindows *windows,
%        const char **selections,XEvent *event)
%
%  A description of each parameter follows:
%
%    o selection_number: Specifies the number of the selection that the
%      user choose.
%
%    o display: Specifies a connection to an X server;  returned from
%      XOpenDisplay.
%
%    o window: Specifies a pointer to a XWindows structure.
%
%    o selections: Specifies a pointer to one or more strings that comprise
%      the choices in the menu.
%
%    o event: Specifies a pointer to a X11 XEvent structure.
%
*/
MagickExport int XCommandWidget(Display *display,XWindows *windows,
  const char **selections,XEvent *event)
{
#define tile_width 112
#define tile_height 70

  static const unsigned char
    tile_bits[]=
    {
      0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x1e, 0x38, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x1e, 0xbc, 0x9f, 0x03, 0x00, 0x3e, 0x00, 0xc0,
      0x1f, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x1e, 0xfc, 0xff, 0x0f, 0x80, 0x3f,
      0x00, 0xf0, 0x1f, 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x1e, 0xfc, 0xff, 0x1f,
      0xe0, 0x3f, 0x00, 0xfc, 0x1f, 0xf0, 0x0f, 0x00, 0x00, 0x00, 0x1e, 0xfc,
      0xff, 0x1f, 0xf0, 0x3f, 0x00, 0xfe, 0x1f, 0xf8, 0x0f, 0x00, 0x00, 0x00,
      0x1e, 0xfc, 0xfc, 0x3f, 0xf8, 0x3f, 0x00, 0xff, 0x1e, 0xfc, 0x0f, 0x00,
      0x00, 0x00, 0x1e, 0x7c, 0xfc, 0x3e, 0xf8, 0x3c, 0x80, 0x1f, 0x1e, 0x7c,
      0x0f, 0x00, 0x00, 0x00, 0x1e, 0x78, 0x78, 0x3c, 0x7c, 0x3c, 0xc0, 0x0f,
      0x1e, 0x3e, 0x0f, 0x00, 0x00, 0x00, 0x1e, 0x78, 0x78, 0x3c, 0x7c, 0x3c,
      0xc0, 0x07, 0x1e, 0x3e, 0x0f, 0x00, 0x00, 0x00, 0x1e, 0x78, 0x78, 0x3c,
      0x7c, 0x7c, 0xc0, 0x0f, 0x1e, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x78,
      0x78, 0x3c, 0xfc, 0x7c, 0x80, 0x7f, 0x1e, 0x7c, 0x00, 0x00, 0x00, 0x00,
      0x1e, 0xf8, 0x78, 0x7c, 0xf8, 0xff, 0x00, 0xff, 0x1f, 0xf8, 0xff, 0x00,
      0x00, 0x00, 0x1e, 0xf8, 0x78, 0x7c, 0xf0, 0xff, 0x07, 0xfe, 0x1f, 0xf8,
      0xff, 0x00, 0x00, 0x00, 0x1e, 0xf8, 0x78, 0x7c, 0xf0, 0xff, 0x07, 0xf8,
      0x1f, 0xf0, 0xff, 0x01, 0x00, 0x00, 0x1e, 0xf8, 0x78, 0x7c, 0xc0, 0xef,
      0x07, 0xe0, 0x1f, 0xc0, 0xff, 0x01, 0x00, 0x00, 0x1e, 0x70, 0x40, 0x78,
      0x00, 0xc7, 0x07, 0x00, 0x1e, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x1e, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
      0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x01, 0x02, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x07,
      0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0xc0, 0x0f, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x60, 0x00, 0xc0, 0x0f, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x78, 0x00, 0xc0, 0x8f, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0xc0, 0x8f, 0x3f, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0xe0, 0x9f, 0x7f, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0xe0, 0xdf,
      0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x78, 0x00,
      0xe0, 0xdf, 0x7b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x0c,
      0x78, 0x30, 0xf0, 0xff, 0x7b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e,
      0x00, 0x0f, 0xf8, 0x70, 0xf0, 0xff, 0x7b, 0x00, 0x00, 0x1f, 0x00, 0xe0,
      0x0f, 0x1e, 0x80, 0x0f, 0xf8, 0x78, 0xf0, 0xfd, 0xf9, 0x00, 0xc0, 0x1f,
      0x00, 0xf8, 0x0f, 0x00, 0xe0, 0x1f, 0xf8, 0x7c, 0xf0, 0xfc, 0xf9, 0x00,
      0xf0, 0x1f, 0x00, 0xfe, 0x0f, 0x00, 0xf0, 0x07, 0xf8, 0x3e, 0xf8, 0xfc,
      0xf0, 0x01, 0xf8, 0x1f, 0x00, 0xff, 0x0f, 0x1e, 0xf0, 0x03, 0xf8, 0x3f,
      0xf8, 0xf8, 0xf0, 0x01, 0xfc, 0x1f, 0x80, 0x7f, 0x0f, 0x1e, 0xf8, 0x00,
      0xf8, 0x1f, 0x78, 0x18, 0xf0, 0x01, 0x7c, 0x1e, 0xc0, 0x0f, 0x0f, 0x1e,
      0x7c, 0x00, 0xf0, 0x0f, 0x78, 0x00, 0xf0, 0x01, 0x3e, 0x1e, 0xe0, 0x07,
      0x0f, 0x1e, 0x7c, 0x00, 0xf0, 0x07, 0x7c, 0x00, 0xe0, 0x01, 0x3e, 0x1e,
      0xe0, 0x03, 0x0f, 0x1e, 0x3e, 0x00, 0xf0, 0x0f, 0x7c, 0x00, 0xe0, 0x03,
      0x3e, 0x3e, 0xe0, 0x07, 0x0f, 0x1e, 0x1e, 0x00, 0xf0, 0x1f, 0x3c, 0x00,
      0xe0, 0x03, 0x7e, 0x3e, 0xc0, 0x3f, 0x0f, 0x1e, 0x3e, 0x00, 0xf0, 0x1f,
      0x3e, 0x00, 0xe0, 0x03, 0xfc, 0x7f, 0x80, 0xff, 0x0f, 0x1e, 0xfc, 0x00,
      0xf0, 0x3e, 0x3e, 0x00, 0xc0, 0x03, 0xf8, 0xff, 0x03, 0xff, 0x0f, 0x1e,
      0xfc, 0x07, 0xf0, 0x7c, 0x1e, 0x00, 0xc0, 0x03, 0xf8, 0xff, 0x03, 0xfc,
      0x0f, 0x1e, 0xf8, 0x1f, 0xf0, 0xf8, 0x1e, 0x00, 0xc0, 0x03, 0xe0, 0xf7,
      0x03, 0xf0, 0x0f, 0x1e, 0xe0, 0x3f, 0xf0, 0x78, 0x1c, 0x00, 0x80, 0x03,
      0x80, 0xe3, 0x03, 0x00, 0x0f, 0x1e, 0xc0, 0x3f, 0xf0, 0x30, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x0e, 0x00, 0x3e, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x0f, 0x00, 0x00, 0x10,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x0f, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0,
      0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0xe0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0xf0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
      0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
    };

  int
    id,
    y;

  register int
    i;

  static unsigned int
    number_selections;

  unsigned int
    height;

  unsigned long
    state;

  XFontStruct
    *font_info;

  (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
  assert(display != (Display *) NULL);
  assert(windows != (XWindows *) NULL);
  font_info=windows->command.font_info;
  height=(unsigned int) (font_info->ascent+font_info->descent);
  id=(~0);
  state=DefaultState;
  if (event == (XEvent *) NULL)
    {
      unsigned int
        width;

      XTextProperty
        window_name;

      XWindowChanges
        window_changes;

      /*
        Determine command window attributes.
      */
      assert(selections != (const char **) NULL);
      windows->command.width=0;
      for (i=0; selections[i] != (char *) NULL; i++)
      {
        width=WidgetTextWidth(font_info,(char *) selections[i]);
        if (width > windows->command.width)
          windows->command.width=width;
      }
      number_selections=(unsigned int) i;
      windows->command.width+=3*QuantumMargin+10;
      if ((int) windows->command.width < (tile_width+QuantumMargin+10))
        windows->command.width=(unsigned  int) (tile_width+QuantumMargin+10);
      windows->command.height=(unsigned  int) (number_selections*
        (((3*height) >> 1)+10)+tile_height+20);
      windows->command.min_width=windows->command.width;
      windows->command.min_height=windows->command.height;
      XConstrainWindowPosition(display,&windows->command);
      if (windows->command.id != (Window) NULL)
        {
          Status
            status;

          /*
            Reconfigure command window.
          */
          status=XStringListToTextProperty(&windows->command.name,1,
            &window_name);
          if (status != False)
            {
              XSetWMName(display,windows->command.id,&window_name);
              XSetWMIconName(display,windows->command.id,&window_name);
              (void) XFree((void *) window_name.value);
            }
          window_changes.width=(int) windows->command.width;
          window_changes.height=(int) windows->command.height;
          (void) XReconfigureWMWindow(display,windows->command.id,
            windows->command.screen,(unsigned int) (CWWidth | CWHeight),
            &window_changes);
        }
      /*
        Allocate selection info memory.
      */
      if (selection_info != (XWidgetInfo *) NULL)
        selection_info=(XWidgetInfo *) RelinquishMagickMemory(selection_info);
      selection_info=(XWidgetInfo *) AcquireQuantumMemory(number_selections,
        sizeof(*selection_info));
      if (selection_info == (XWidgetInfo *) NULL)
        {
          ThrowXWindowFatalException(ResourceLimitError,
            "MemoryAllocationFailed","...");
          return(id);
        }
      state|=UpdateConfigurationState | RedrawWidgetState;
    }
  /*
    Wait for next event.
  */
  if (event != (XEvent *) NULL)
    switch (event->type)
    {
      case ButtonPress:
      {
        for (i=0; i < (int) number_selections; i++)
        {
          if (MatteIsActive(selection_info[i],event->xbutton) == MagickFalse)
            continue;
          if (i >= (int) windows->command.data)
            {
              selection_info[i].raised=MagickFalse;
              XDrawBeveledButton(display,&windows->command,&selection_info[i]);
              break;
            }
          submenu_info=selection_info[i];
          submenu_info.active=MagickTrue;
          toggle_info.y=
            submenu_info.y+(submenu_info.height >> 1)-(toggle_info.height >> 1);
          id=i;
          (void) XCheckWindowEvent(display,windows->widget.id,LeaveWindowMask,
            event);
          break;
        }
        break;
      }
      case ButtonRelease:
      {
        for (i=0; i < (int) number_selections; i++)
        {
          if (MatteIsActive(selection_info[i],event->xbutton) == MagickFalse)
            continue;
          id=i;
          if (id >= (int) windows->command.data)
            {
              selection_info[id].raised=MagickTrue;
              XDrawBeveledButton(display,&windows->command,&selection_info[id]);
              break;
            }
          break;
        }
        break;
      }
      case ClientMessage:
      {
        /*
          If client window delete message, withdraw command widget.
        */
        if (event->xclient.message_type != windows->wm_protocols)
          break;
        if (*event->xclient.data.l != (int) windows->wm_delete_window)
          break;
        (void) XWithdrawWindow(display,windows->command.id,
          windows->command.screen);
        break;
      }
      case ConfigureNotify:
      {
        /*
          Update widget configuration.
        */
        if (event->xconfigure.window != windows->command.id)
          break;
        if (event->xconfigure.send_event != 0)
          {
            windows->command.x=event->xconfigure.x;
            windows->command.y=event->xconfigure.y;
          }
        if ((event->xconfigure.width == (int) windows->command.width) &&
            (event->xconfigure.height == (int) windows->command.height))
          break;
        windows->command.width=(unsigned int)
          MagickMax(event->xconfigure.width,(int) windows->command.min_width);
        windows->command.height=(unsigned int)
          MagickMax(event->xconfigure.height,(int) windows->command.min_height);
        state|=UpdateConfigurationState;
        break;
      }
      case Expose:
      {
        if (event->xexpose.window != windows->command.id)
          break;
        if (event->xexpose.count != 0)
          break;
        state|=RedrawWidgetState;
        break;
      }
      case MotionNotify:
      {
        /*
          Return the ID of the highlighted menu entry.
        */
        for ( ; ; )
        {
          for (i=0; i < (int) number_selections; i++)
          {
            if (i >= (int) windows->command.data)
              {
                if (selection_info[i].raised ==
                    MatteIsActive(selection_info[i],event->xmotion))
                  {
                    /*
                      Button status changed.
                    */
                    selection_info[i].raised=!selection_info[i].raised;
                    XDrawBeveledButton(display,&windows->command,
                      &selection_info[i]);
                  }
                continue;
              }
            if (MatteIsActive(selection_info[i],event->xmotion) == MagickFalse)
              continue;
            submenu_info=selection_info[i];
            submenu_info.active=MagickTrue;
            toggle_info.raised=MagickTrue;
            toggle_info.y=submenu_info.y+(submenu_info.height >> 1)-
              (toggle_info.height >> 1);
            XDrawTriangleEast(display,&windows->command,&toggle_info);
            id=i;
          }
          XDelay(display,SuspendTime);
          if (XCheckMaskEvent(display,ButtonMotionMask,event) == MagickFalse)
            break;
          while (XCheckMaskEvent(display,ButtonMotionMask,event)) ;
          toggle_info.raised=MagickFalse;
          if (windows->command.data != 0)
            XDrawTriangleEast(display,&windows->command,&toggle_info);
        }
        break;
      }
      case MapNotify:
      {
        windows->command.mapped=MagickTrue;
        break;
      }
      case UnmapNotify:
      {
        windows->command.mapped=MagickFalse;
        break;
      }
      default:
        break;
    }
  if (state & UpdateConfigurationState)
    {
      /*
        Initialize button information.
      */
      assert(selections != (const char **) NULL);
      y=tile_height+20;
      for (i=0; i < (int) number_selections; i++)
      {
        XGetWidgetInfo(selections[i],&selection_info[i]);
        selection_info[i].center=MagickFalse;
        selection_info[i].bevel_width--;
        selection_info[i].height=(unsigned int) ((3*height) >> 1);
        selection_info[i].x=(QuantumMargin >> 1)+4;
        selection_info[i].width=(unsigned int)
          (windows->command.width-(selection_info[i].x << 1));
        selection_info[i].y=y;
        y+=selection_info[i].height+(selection_info[i].bevel_width << 1)+6;
      }
      XGetWidgetInfo((char *) NULL,&toggle_info);
      toggle_info.bevel_width--;
      toggle_info.width=(unsigned int)
        (((5*height) >> 3)-(toggle_info.bevel_width << 1));
      toggle_info.height=toggle_info.width;
      toggle_info.x=selection_info[0].x+selection_info[0].width-
        toggle_info.width-(QuantumMargin >> 1);
      if (windows->command.mapped)
        (void) XClearWindow(display,windows->command.id);
    }
  if (state & RedrawWidgetState)
    {
      Pixmap
        tile_pixmap;

      /*
        Draw command buttons.
      */
      tile_pixmap=XCreatePixmapFromBitmapData(display,windows->command.id,
        (char *) tile_bits,tile_width,tile_height,1L,0L,1);
      if (tile_pixmap != (Pixmap) NULL)
        {
          (void) XCopyPlane(display,tile_pixmap,windows->command.id,
            windows->command.annotate_context,0,0,tile_width,tile_height,
            (int) ((windows->command.width-tile_width) >> 1),10,1L);
          (void) XFreePixmap(display,tile_pixmap);
        }
      for (i=0; i < (int) number_selections; i++)
      {
        XDrawBeveledButton(display,&windows->command,&selection_info[i]);
        if (i >= (int) windows->command.data)
          continue;
        toggle_info.raised=i == id ? MagickTrue : MagickFalse;
        toggle_info.y=selection_info[i].y+
          (selection_info[i].height >> 1)-(toggle_info.height >> 1);
        XDrawTriangleEast(display,&windows->command,&toggle_info);
      }
      XHighlightWidget(display,&windows->command,BorderOffset,BorderOffset);
    }
  return(id);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   X C o n f i r m W i d g e t                                               %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XConfirmWidget() displays a Confirm widget with a notice to the user. The
%  function returns -1 if Dismiss is pressed, 0 for Cancel, and 1 for Yes.
%
%  The format of the XConfirmWidget method is:
%
%      int XConfirmWidget(Display *display,XWindows *windows,
%        const char *reason,const char *description)
%
%  A description of each parameter follows:
%
%    o display: Specifies a connection to an X server;  returned from
%      XOpenDisplay.
%
%    o window: Specifies a pointer to a XWindows structure.
%
%    o reason: Specifies the message to display before terminating the
%      program.
%
%    o description: Specifies any description to the message.
%
*/
MagickExport int XConfirmWidget(Display *display,XWindows *windows,
  const char *reason,const char *description)
{
#define CancelButtonText  "Cancel"
#define DismissButtonText  "Dismiss"
#define YesButtonText  "Yes"

  int
    confirm,
    x,
    y;

  Status
    status;

  unsigned int
    height,
    width;

  unsigned long
    state;

  XEvent
    event;

  XFontStruct
    *font_info;

  XTextProperty
    window_name;

  XWidgetInfo
    cancel_info,
    dismiss_info,
    yes_info;

  XWindowChanges
    window_changes;

  /*
    Determine Confirm widget attributes.
  */
  assert(display != (Display *) NULL);
  assert(windows != (XWindows *) NULL);
  assert(reason != (char *) NULL);
  assert(description != (char *) NULL);
  (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",reason);
  XCheckRefreshWindows(display,windows);
  font_info=windows->widget.font_info;
  width=WidgetTextWidth(font_info,CancelButtonText);
  if (WidgetTextWidth(font_info,DismissButtonText) > width)
    width=WidgetTextWidth(font_info,DismissButtonText);
  if (WidgetTextWidth(font_info,YesButtonText) > width)
    width=WidgetTextWidth(font_info,YesButtonText);
  width<<=1;
  if (description != (char *) NULL)
    if (WidgetTextWidth(font_info,(char *) description) > width)
      width=WidgetTextWidth(font_info,(char *) description);
  height=(unsigned int) (font_info->ascent+font_info->descent);
  /*
    Position Confirm widget.
  */
  windows->widget.width=(unsigned int) (width+9*QuantumMargin);
  windows->widget.min_width=(unsigned int) (9*QuantumMargin+
    WidgetTextWidth(font_info,CancelButtonText)+
    WidgetTextWidth(font_info,DismissButtonText)+
    WidgetTextWidth(font_info,YesButtonText));
  if (windows->widget.width < windows->widget.min_width)
    windows->widget.width=windows->widget.min_width;
  windows->widget.height=(unsigned int) (12*height);
  windows->widget.min_height=(unsigned int) (7*height);
  if (windows->widget.height < windows->widget.min_height)
    windows->widget.height=windows->widget.min_height;
  XConstrainWindowPosition(display,&windows->widget);
  /*
    Map Confirm widget.
  */
  (void) CopyMagickString(windows->widget.name,"Confirm",MaxTextExtent);
  status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
  if (status != False)
    {
      XSetWMName(display,windows->widget.id,&window_name);
      XSetWMIconName(display,windows->widget.id,&window_name);
      (void) XFree((void *) window_name.value);
    }
  window_changes.width=(int) windows->widget.width;
  window_changes.height=(int) windows->widget.height;
  window_changes.x=windows->widget.x;
  window_changes.y=windows->widget.y;
  (void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
    (unsigned int) (CWWidth | CWHeight | CWX | CWY),&window_changes);
  (void) XMapRaised(display,windows->widget.id);
  windows->widget.mapped=MagickFalse;
  /*
    Respond to X events.
  */
  confirm=0;
  state=UpdateConfigurationState;
  XSetCursorState(display,windows,MagickTrue);
  do
  {
    if (state & UpdateConfigurationState)
      {
        /*
          Initialize button information.
        */
        XGetWidgetInfo(CancelButtonText,&cancel_info);
        cancel_info.width=(unsigned int) QuantumMargin+
          WidgetTextWidth(font_info,CancelButtonText);
        cancel_info.height=(unsigned int) ((3*height) >> 1);
        cancel_info.x=(int) (windows->widget.width-cancel_info.width-
          QuantumMargin);
        cancel_info.y=(int) (windows->widget.height-(cancel_info.height << 1));
        dismiss_info=cancel_info;
        dismiss_info.text=(char *) DismissButtonText;
        if (LocaleCompare(description,"Do you want to save it") == 0)
          dismiss_info.text=(char *) "Don't Save";
        dismiss_info.width=(unsigned int) QuantumMargin+
          WidgetTextWidth(font_info,dismiss_info.text);
        dismiss_info.x=(int)
          ((windows->widget.width >> 1)-(dismiss_info.width >> 1));
        yes_info=cancel_info;
        yes_info.text=(char *) YesButtonText;
        if (LocaleCompare(description,"Do you want to save it") == 0)
          yes_info.text=(char *) "Save";
        yes_info.width=(unsigned int) QuantumMargin+
          WidgetTextWidth(font_info,yes_info.text);
        if (yes_info.width < cancel_info.width)
          yes_info.width=cancel_info.width;
        yes_info.x=QuantumMargin;
        state&=(~UpdateConfigurationState);
      }
    if (state & RedrawWidgetState)
      {
        /*
          Redraw Confirm widget.
        */
        width=WidgetTextWidth(font_info,(char *) reason);
        x=(int) ((windows->widget.width >> 1)-(width >> 1));
        y=(int) ((windows->widget.height >> 1)-(height << 1));
        (void) XDrawString(display,windows->widget.id,
          windows->widget.annotate_context,x,y,(char *) reason,Extent(reason));
        if (description != (char *) NULL)
          {
            char
              question[MaxTextExtent];

            (void) CopyMagickString(question,description,MaxTextExtent);
            (void) ConcatenateMagickString(question,"?",MaxTextExtent);
            width=WidgetTextWidth(font_info,question);
            x=(int) ((windows->widget.width >> 1)-(width >> 1));
            y+=height;
            (void) XDrawString(display,windows->widget.id,
              windows->widget.annotate_context,x,y,question,Extent(question));
          }
        XDrawBeveledButton(display,&windows->widget,&cancel_info);
        XDrawBeveledButton(display,&windows->widget,&dismiss_info);
        XDrawBeveledButton(display,&windows->widget,&yes_info);
        XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
        state&=(~RedrawWidgetState);
      }
    /*
      Wait for next event.
    */
    (void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
    switch (event.type)
    {
      case ButtonPress:
      {
        if (MatteIsActive(cancel_info,event.xbutton))
          {
            /*
              User pressed No button.
            */
            cancel_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&cancel_info);
            break;
          }
        if (MatteIsActive(dismiss_info,event.xbutton))
          {
            /*
              User pressed Dismiss button.
            */
            dismiss_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&dismiss_info);
            break;
          }
        if (MatteIsActive(yes_info,event.xbutton))
          {
            /*
              User pressed Yes button.
            */
            yes_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&yes_info);
            break;
          }
        break;
      }
      case ButtonRelease:
      {
        if (windows->widget.mapped == MagickFalse)
          break;
        if (cancel_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              if (MatteIsActive(cancel_info,event.xbutton))
                {
                  confirm=0;
                  state|=ExitState;
                }
            cancel_info.raised=MagickTrue;
            XDrawBeveledButton(display,&windows->widget,&cancel_info);
          }
        if (dismiss_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              if (MatteIsActive(dismiss_info,event.xbutton))
                {
                  confirm=(-1);
                  state|=ExitState;
                }
            dismiss_info.raised=MagickTrue;
            XDrawBeveledButton(display,&windows->widget,&dismiss_info);
          }
        if (yes_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              if (MatteIsActive(yes_info,event.xbutton))
                {
                  confirm=1;
                  state|=ExitState;
                }
            yes_info.raised=MagickTrue;
            XDrawBeveledButton(display,&windows->widget,&yes_info);
          }
        break;
      }
      case ClientMessage:
      {
        /*
          If client window delete message, exit.
        */
        if (event.xclient.message_type != windows->wm_protocols)
          break;
        if (*event.xclient.data.l == (int) windows->wm_take_focus)
          {
            (void) XSetInputFocus(display,event.xclient.window,RevertToParent,
              (Time) event.xclient.data.l[1]);
            break;
          }
        if (*event.xclient.data.l != (int) windows->wm_delete_window)
          break;
        if (event.xclient.window == windows->widget.id)
          {
            state|=ExitState;
            break;
          }
        break;
      }
      case ConfigureNotify:
      {
        /*
          Update widget configuration.
        */
        if (event.xconfigure.window != windows->widget.id)
          break;
        if ((event.xconfigure.width == (int) windows->widget.width) &&
            (event.xconfigure.height == (int) windows->widget.height))
          break;
        windows->widget.width=(unsigned int)
          MagickMax(event.xconfigure.width,(int) windows->widget.min_width);
        windows->widget.height=(unsigned int)
          MagickMax(event.xconfigure.height,(int) windows->widget.min_height);
        state|=UpdateConfigurationState;
        break;
      }
      case EnterNotify:
      {
        if (event.xcrossing.window != windows->widget.id)
          break;
        state&=(~InactiveWidgetState);
        break;
      }
      case Expose:
      {
        if (event.xexpose.window != windows->widget.id)
          break;
        if (event.xexpose.count != 0)
          break;
        state|=RedrawWidgetState;
        break;
      }
      case KeyPress:
      {
        static char
          command[MaxTextExtent];

        static KeySym
          key_symbol;

        /*
          Respond to a user key press.
        */
        if (event.xkey.window != windows->widget.id)
          break;
        (void) XLookupString((XKeyEvent *) &event.xkey,command,
          (int) sizeof(command),&key_symbol,(XComposeStatus *) NULL);
        if ((key_symbol == XK_Return) || (key_symbol == XK_KP_Enter))
          {
            yes_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&yes_info);
            confirm=1;
            state|=ExitState;
            break;
          }
        break;
      }
      case LeaveNotify:
      {
        if (event.xcrossing.window != windows->widget.id)
          break;
        state|=InactiveWidgetState;
        break;
      }
      case MotionNotify:
      {
        /*
          Discard pending button motion events.
        */
        while (XCheckMaskEvent(display,ButtonMotionMask,&event)) ;
        if (state & InactiveWidgetState)
          break;
        if (cancel_info.raised == MatteIsActive(cancel_info,event.xmotion))
          {
            /*
              Cancel button status changed.
            */
            cancel_info.raised=cancel_info.raised == MagickFalse ?
              MagickTrue : MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&cancel_info);
            break;
          }
        if (dismiss_info.raised == MatteIsActive(dismiss_info,event.xmotion))
          {
            /*
              Dismiss button status changed.
            */
            dismiss_info.raised=cancel_info.raised == MagickFalse ?
              MagickTrue : MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&dismiss_info);
            break;
          }
        if (yes_info.raised == MatteIsActive(yes_info,event.xmotion))
          {
            /*
              Yes button status changed.
            */
            yes_info.raised=yes_info.raised == MagickFalse ?
              MagickTrue : MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&yes_info);
            break;
          }
        break;
      }
      default:
        break;
    }
  } while ((state & ExitState) == 0);
  XSetCursorState(display,windows,MagickFalse);
  (void) XWithdrawWindow(display,windows->widget.id,windows->widget.screen);
  XCheckRefreshWindows(display,windows);
  return(confirm);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   X D i a l o g W i d g e t                                                 %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  XDialogWidget() displays a Dialog widget with a query to the user.  The user
%  keys a reply and presses the Ok or Cancel button to exit.  The typed text is
%  returned as the reply function parameter.
%
%  The format of the XDialogWidget method is:
%
%      int XDialogWidget(Display *display,XWindows *windows,const char *action,
%        const char *query,char *reply)
%
%  A description of each parameter follows:
%
%    o display: Specifies a connection to an X server;  returned from
%      XOpenDisplay.
%
%    o window: Specifies a pointer to a XWindows structure.
%
%    o action: Specifies a pointer to the action of this widget.
%
%    o query: Specifies a pointer to the query to present to the user.
%
%    o reply: the response from the user is returned in this parameter.
%
*/
MagickExport int XDialogWidget(Display *display,XWindows *windows,
  const char *action,const char *query,char *reply)
{
#define CancelButtonText  "Cancel"

  char
    primary_selection[MaxTextExtent];

  int
    x;

  register int
    i;

  static MagickBooleanType
    raised = MagickFalse;

  Status
    status;

  unsigned int
    anomaly,
    height,
    width;

  unsigned long
    state;

  XEvent
    event;

  XFontStruct
    *font_info;

  XTextProperty
    window_name;

  XWidgetInfo
    action_info,
    cancel_info,
    reply_info,
    special_info,
    text_info;

  XWindowChanges
    window_changes;

  /*
    Determine Dialog widget attributes.
  */
  assert(display != (Display *) NULL);
  assert(windows != (XWindows *) NULL);
  assert(action != (char *) NULL);
  assert(query != (char *) NULL);
  assert(reply != (char *) NULL);
  (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",action);
  XCheckRefreshWindows(display,windows);
  font_info=windows->widget.font_info;
  width=WidgetTextWidth(font_info,(char *) action);
  if (WidgetTextWidth(font_info,CancelButtonText) > width)
    width=WidgetTextWidth(font_info,CancelButtonText);
  width+=(3*QuantumMargin) >> 1;
  height=(unsigned int) (font_info->ascent+font_info->descent);
  /*
    Position Dialog widget.
  */
  windows->widget.width=(unsigned int) MagickMax(2*width,(int) WidgetTextWidth(
    font_info,(char *) query));
  if (windows->widget.width < WidgetTextWidth(font_info,reply))
    windows->widget.width=WidgetTextWidth(font_info,reply);
  windows->widget.width+=6*QuantumMargin;
  windows->widget.min_width=(unsigned int)
    (width+28*XTextWidth(font_info,"#",1)+4*QuantumMargin);
  if (windows->widget.width < windows->widget.min_width)
    windows->widget.width=windows->widget.min_width;
  windows->widget.height=(unsigned int) (7*height+(QuantumMargin << 1));
  windows->widget.min_height=windows->widget.height;
  if (windows->widget.height < windows->widget.min_height)
    windows->widget.height=windows->widget.min_height;
  XConstrainWindowPosition(display,&windows->widget);
  /*
    Map Dialog widget.
  */
  (void) CopyMagickString(windows->widget.name,"Dialog",MaxTextExtent);
  status=XStringListToTextProperty(&windows->widget.name,1,&window_name);
  if (status != False)
    {
      XSetWMName(display,windows->widget.id,&window_name);
      XSetWMIconName(display,windows->widget.id,&window_name);
      (void) XFree((void *) window_name.value);
    }
  window_changes.width=(int) windows->widget.width;
  window_changes.height=(int) windows->widget.height;
  window_changes.x=windows->widget.x;
  window_changes.y=windows->widget.y;
  (void) XReconfigureWMWindow(display,windows->widget.id,windows->widget.screen,
    (unsigned int) (CWWidth | CWHeight | CWX | CWY),&window_changes);
  (void) XMapRaised(display,windows->widget.id);
  windows->widget.mapped=MagickFalse;
  /*
    Respond to X events.
  */
  anomaly=(LocaleCompare(action,"Background") == 0) ||
    (LocaleCompare(action,"New") == 0) ||
    (LocaleCompare(action,"Quantize") == 0) ||
    (LocaleCompare(action,"Resize") == 0) ||
    (LocaleCompare(action,"Save") == 0) ||
    (LocaleCompare(action,"Shade") == 0);
  state=UpdateConfigurationState;
  XSetCursorState(display,windows,MagickTrue);
  do
  {
    if (state & UpdateConfigurationState)
      {
        /*
          Initialize button information.
        */
        XGetWidgetInfo(CancelButtonText,&cancel_info);
        cancel_info.width=width;
        cancel_info.height=(unsigned int) ((3*height) >> 1);
        cancel_info.x=(int)
          (windows->widget.width-cancel_info.width-((3*QuantumMargin) >> 1));
        cancel_info.y=(int)
          (windows->widget.height-cancel_info.height-((3*QuantumMargin) >> 1));
        XGetWidgetInfo(action,&action_info);
        action_info.width=width;
        action_info.height=(unsigned int) ((3*height) >> 1);
        action_info.x=cancel_info.x-(cancel_info.width+QuantumMargin+
          (action_info.bevel_width << 1));
        action_info.y=cancel_info.y;
        /*
          Initialize reply information.
        */
        XGetWidgetInfo(reply,&reply_info);
        reply_info.raised=MagickFalse;
        reply_info.bevel_width--;
        reply_info.width=windows->widget.width-(3*QuantumMargin);
        reply_info.height=height << 1;
        reply_info.x=(3*QuantumMargin) >> 1;
        reply_info.y=action_info.y-reply_info.height-QuantumMargin;
        /*
          Initialize option information.
        */
        XGetWidgetInfo("Dither",&special_info);
        special_info.raised=raised;
        special_info.bevel_width--;
        special_info.width=(unsigned int) QuantumMargin >> 1;
        special_info.height=(unsigned int) QuantumMargin >> 1;
        special_info.x=reply_info.x;
        special_info.y=action_info.y+action_info.height-special_info.height;
        if (LocaleCompare(action,"Background") == 0)
          special_info.text=(char *) "Backdrop";
        if (LocaleCompare(action,"New") == 0)
          special_info.text=(char *) "Gradation";
        if (LocaleCompare(action,"Resize") == 0)
          special_info.text=(char *) "Constrain ratio";
        if (LocaleCompare(action,"Save") == 0)
          special_info.text=(char *) "Non-progressive";
        if (LocaleCompare(action,"Shade") == 0)
          special_info.text=(char *) "Color shading";
        /*
          Initialize text information.
        */
        XGetWidgetInfo(query,&text_info);
        text_info.width=reply_info.width;
        text_info.height=height;
        text_info.x=reply_info.x-(QuantumMargin >> 1);
        text_info.y=QuantumMargin;
        text_info.center=MagickFalse;
        state&=(~UpdateConfigurationState);
      }
    if (state & RedrawWidgetState)
      {
        /*
          Redraw Dialog widget.
        */
        XDrawWidgetText(display,&windows->widget,&text_info);
        XDrawBeveledMatte(display,&windows->widget,&reply_info);
        XDrawMatteText(display,&windows->widget,&reply_info);
        if (anomaly)
          XDrawBeveledButton(display,&windows->widget,&special_info);
        XDrawBeveledButton(display,&windows->widget,&action_info);
        XDrawBeveledButton(display,&windows->widget,&cancel_info);
        XHighlightWidget(display,&windows->widget,BorderOffset,BorderOffset);
        state&=(~RedrawWidgetState);
      }
    /*
      Wait for next event.
    */
    (void) XIfEvent(display,&event,XScreenEvent,(char *) windows);
    switch (event.type)
    {
      case ButtonPress:
      {
        if (anomaly)
          if (MatteIsActive(special_info,event.xbutton))
            {
              /*
                Option button status changed.
              */
              special_info.raised=!special_info.raised;
              XDrawBeveledButton(display,&windows->widget,&special_info);
              break;
            }
        if (MatteIsActive(action_info,event.xbutton))
          {
            /*
              User pressed Action button.
            */
            action_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&action_info);
            break;
          }
        if (MatteIsActive(cancel_info,event.xbutton))
          {
            /*
              User pressed Cancel button.
            */
            cancel_info.raised=MagickFalse;
            XDrawBeveledButton(display,&windows->widget,&cancel_info);
            break;
          }
        if (MatteIsActive(reply_info,event.xbutton) == MagickFalse)
          break;
        if (event.xbutton.button != Button2)
          {
            static Time
              click_time;

            /*
              Move text cursor to position of button press.
            */
            x=event.xbutton.x-reply_info.x-(QuantumMargin >> 2);
            for (i=1; i <= Extent(reply_info.marker); i++)
              if (XTextWidth(font_info,reply_info.marker,i) > x)
                break;
            reply_info.cursor=reply_info.marker+i-1;
            if (event.xbutton.time > (click_time+DoubleClick))
              reply_info.highlight=MagickFalse;
            else
              {
                /*
                  Become the XA_PRIMARY selection owner.
                */
                (void) CopyMagickString(primary_selection,reply_info.text,
                  MaxTextExtent);
                (void) XSetSelectionOwner(display,XA_PRIMARY,windows->widget.id,
                  event.xbutton.time);
                reply_info.highlight=XGetSelectionOwner(display,XA_PRIMARY) ==
                  windows->widget.id ? MagickTrue : MagickFalse;
              }
            XDrawMatteText(display,&windows->widget,&reply_info);
            click_time=event.xbutton.time;
            break;
          }
        /*
          Request primary selection.
        */
        (void) XConvertSelection(display,XA_PRIMARY,XA_STRING,XA_STRING,
          windows->widget.id,event.xbutton.time);
        break;
      }
      case ButtonRelease:
      {
        if (windows->widget.mapped == MagickFalse)
          break;
        if (action_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              if (MatteIsActive(action_info,event.xbutton))
                state|=ExitState;
            action_info.raised=MagickTrue;
            XDrawBeveledButton(display,&windows->widget,&action_info);
          }
        if (cancel_info.raised == MagickFalse)
          {
            if (event.xbutton.window == windows->widget.id)
              if (MatteIsActive(cancel_info,event.xbutton))
                {
                  *reply_info.text='\0';
                  state|=ExitState;
                }
            cancel_info.raised=MagickTrue;