/*
  Copyright 1999-2020 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
  
    https://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.

  MagickCore X11 window methods.
*/
#ifndef MAGICKCORE_XWINDOW_PRIVATE_H
#define MAGICKCORE_XWINDOW_PRIVATE_H

#include "MagickCore/draw.h"
#include "MagickCore/exception.h"
#include "MagickCore/geometry.h"
#include "MagickCore/nt-base-private.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/quantize.h"

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

#if defined(MAGICKCORE_X11_DELEGATE)

#include <X11/Xos.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xresource.h>
#include <X11/Xutil.h>

#if defined(__cplusplus) || defined(c_plusplus)
# define klass  c_class
#else
# define klass  class
#endif

#define MaxIconSize  96
#define MaxNumberPens  11
#define MaxNumberFonts  11
#define MaxXWindows  12
#undef index

#define ThrowXWindowException(severity,tag,context) \
{ \
  ExceptionInfo \
    *exception; \
 \
  exception=AcquireExceptionInfo(); \
  (void) ThrowMagickException(exception,GetMagickModule(),severity, \
    tag == (const char *) NULL ? "unknown" : tag,"'%s': %s",context, \
    strerror(errno)); \
  CatchException(exception); \
  (void) DestroyExceptionInfo(exception); \
}
#define ThrowXWindowFatalException(severity,tag,context) \
{ \
   ThrowXWindowException(severity,tag,context); \
  _exit(1); \
}

typedef enum
{
  ForegroundStencil,
  BackgroundStencil,
  OpaqueStencil,
  TransparentStencil
} AnnotationStencil;

typedef enum
{
  UndefinedElement,
  PointElement,
  LineElement,
  RectangleElement,
  FillRectangleElement,
  CircleElement,
  FillCircleElement,
  EllipseElement,
  FillEllipseElement,
  PolygonElement,
  FillPolygonElement,
  ColorElement,
  MatteElement,
  TextElement,
  ImageElement
} ElementType;

typedef enum
{
  UndefinedColormap,
  PrivateColormap,
  SharedColormap
} XColormapType;

typedef struct _XDrawInfo
{
  int
    x,
    y;

  unsigned int
    width,
    height;

  double
    degrees;

  AnnotationStencil
    stencil;

  ElementType
    element;

  Pixmap
    stipple;

  unsigned int
    line_width;

  XSegment
    line_info;

  unsigned int
    number_coordinates;

  RectangleInfo
    rectangle_info;

  XPoint
    *coordinate_info;

  char
    geometry[MagickPathExtent];
} XDrawInfo;

typedef enum
{
  DefaultState = 0x0000,
  EscapeState = 0x0001,
  ExitState = 0x0002,
  FormerImageState = 0x0004,
  ModifierState = 0x0008,
  MontageImageState = 0x0010,
  NextImageState = 0x0020,
  RetainColorsState = 0x0040,
  SuspendTime = 50,
  UpdateConfigurationState = 0x0080,
  UpdateRegionState = 0x0100
} XState;

typedef struct _XAnnotateInfo
{
  int
    x,
    y;

  unsigned int
    width,
    height;

  double
    degrees;

  XFontStruct
    *font_info;

  char
    *text;

  AnnotationStencil
    stencil;

  char
    geometry[MagickPathExtent];

  struct _XAnnotateInfo
    *next,
    *previous;
} XAnnotateInfo;

typedef struct _XPixelInfo
{
  ssize_t
    colors;

  unsigned long
    *pixels;

  XColor
    alpha_color,  /* deprecated */
    foreground_color,
    background_color,
    border_color,
    highlight_color,
    shadow_color,
    depth_color,
    trough_color,
    box_color,
    pen_color,
    pen_colors[MaxNumberPens];

  GC
    annotate_context,
    highlight_context,
    widget_context;

  unsigned short
    box_index,
    pen_index;

  XColor
    matte_color;
} XPixelInfo;

typedef struct _XResourceInfo
{
  XrmDatabase
    resource_database;

  ImageInfo
    *image_info;

  QuantizeInfo
    *quantize_info;

  size_t
    colors;

  MagickBooleanType
    close_server,
    backdrop;

  char
    *background_color,
    *border_color;

  char
    *client_name;

  XColormapType
    colormap;

  unsigned int
    border_width;

  size_t
    delay;

  MagickBooleanType
    color_recovery,
    confirm_exit,
    confirm_edit;

  char
    *display_gamma;

  char
    *font,
    *font_name[MaxNumberFonts],
    *foreground_color;

  MagickBooleanType
    display_warnings,
    gamma_correct;

  char
    *icon_geometry;

  MagickBooleanType
    iconic,
    immutable;

  char
    *image_geometry;

  char
    *alpha_color,  /* deprecated */
    *map_type,
    *name;

  unsigned int
    magnify,
    pause;

  char
    *pen_colors[MaxNumberPens];

  char
    *text_font,
    *title;

  int
    quantum;

  unsigned int
    update;

  MagickBooleanType
    use_pixmap,
    use_shared_memory;

  size_t
    undo_cache;

  char
    *visual_type,
    *window_group,
    *window_id,
    *write_filename;

  Image
    *copy_image;

  int
    gravity;

  char
    home_directory[MagickPathExtent];

  char
    *matte_color;
} XResourceInfo;

typedef struct _XWindowInfo
{
  Window
    id;

  Window
    root;

  Visual
    *visual;

  unsigned int
    storage_class,
    depth;

  XVisualInfo
    *visual_info;

  XStandardColormap
    *map_info;

  XPixelInfo
    *pixel_info;

  XFontStruct
    *font_info;

  GC
    annotate_context,
    highlight_context,
    widget_context;

  Cursor
    cursor,
    busy_cursor;

  char
    *name,
    *geometry,
    *icon_name,
    *icon_geometry,
    *crop_geometry;

  size_t
    data,
    flags;

  int
    x,
    y;

  unsigned int
    width,
    height,
    min_width,
    min_height,
    width_inc,
    height_inc,
    border_width;

  MagickBooleanType
    use_pixmap,
    immutable,
    shape,
    shared_memory;

  int
    screen;

  XImage
    *ximage,
    *matte_image;

  Pixmap
    highlight_stipple,
    shadow_stipple,
    pixmap,
    *pixmaps,
    matte_pixmap,
    *matte_pixmaps;

  XSetWindowAttributes
    attributes;

  XWindowChanges
    window_changes;

  void
    *segment_info;

  long
    mask;

  MagickBooleanType
    orphan,
    mapped,
    stasis;

  Image
    *image;

  MagickBooleanType
    destroy;
} XWindowInfo;

typedef struct _XWindows
{
  Display
    *display;

  XStandardColormap
    *map_info,
    *icon_map;

  XVisualInfo
    *visual_info,
    *icon_visual;

  XPixelInfo
    *pixel_info,
    *icon_pixel;

  XFontStruct
    *font_info;

  XResourceInfo
    *icon_resources;

  XClassHint
    *class_hints;

  XWMHints
    *manager_hints;

  XWindowInfo
    context,
    group_leader,
    backdrop,
    icon,
    image,
    info,
    magnify,
    pan,
    command,
    widget,
    popup;

  Atom
    wm_protocols,
    wm_delete_window,
    wm_take_focus,
    im_protocols,
    im_remote_command,
    im_update_widget,
    im_update_colormap,
    im_former_image,
    im_retain_colors,
    im_next_image,
    im_exit,
    dnd_protocols;
} XWindows;

extern MagickPrivate Cursor
  XMakeCursor(Display *,Window,Colormap,char *,char *);

extern MagickPrivate int
  XCheckDefineCursor(Display *,Window,Cursor);

extern MagickPrivate MagickBooleanType
  XAnnotateImage(Display *,const XPixelInfo *,XAnnotateInfo *,Image *,
    ExceptionInfo *),
  XComponentGenesis(void),
  XDrawImage(Display *,const XPixelInfo *,XDrawInfo *,Image *,ExceptionInfo *),
  XGetWindowColor(Display *,XWindows *,char *,ExceptionInfo *),
  XMagickProgressMonitor(const char *,const MagickOffsetType,
    const MagickSizeType,void *),
  XMakeImage(Display *,const XResourceInfo *,XWindowInfo *,Image *,unsigned int,
    unsigned int,ExceptionInfo *),
  XQueryColorCompliance(const char *,XColor *);

extern MagickPrivate void
  XBestIconSize(Display *,XWindowInfo *,Image *),
  XBestPixel(Display *,const Colormap,XColor *,unsigned int,XColor *),
  XCheckRefreshWindows(Display *,XWindows *),
  XClientMessage(Display *,const Window,const Atom,const Atom,const Time),
  XComponentTerminus(void),
  XConfigureImageColormap(Display *,XResourceInfo *,XWindows *,Image *,
    ExceptionInfo *),
  XConstrainWindowPosition(Display *,XWindowInfo *),
  XDelay(Display *,const size_t),
  XDisplayImageInfo(Display *,const XResourceInfo *,XWindows *,Image *,Image *,
    ExceptionInfo *),
  XDestroyWindowColors(Display *,Window),
  XFreeResources(Display *,XVisualInfo *,XStandardColormap *,XPixelInfo *,
    XFontStruct *,XResourceInfo *,XWindowInfo *),
  XFreeStandardColormap(Display *,const XVisualInfo *,XStandardColormap *,
    XPixelInfo *),
  XHighlightEllipse(Display *,Window,GC,const RectangleInfo *),
  XHighlightLine(Display *,Window,GC,const XSegment *),
  XHighlightRectangle(Display *,Window,GC,const RectangleInfo *),
  XGetAnnotateInfo(XAnnotateInfo *),
  XGetPixelInfo(Display *,const XVisualInfo *,const XStandardColormap *,
    const XResourceInfo *,Image *,XPixelInfo *),
  XGetMapInfo(const XVisualInfo *,const Colormap,XStandardColormap *),
  XGetWindowInfo(Display *,XVisualInfo *,XStandardColormap *,XPixelInfo *,
    XFontStruct *,XResourceInfo *,XWindowInfo *),
  XMakeMagnifyImage(Display *,XWindows *,ExceptionInfo *),
  XMakeStandardColormap(Display *,XVisualInfo *,XResourceInfo *,Image *,
    XStandardColormap *,XPixelInfo *,ExceptionInfo *),
  XMakeWindow(Display *,Window,char **,int,XClassHint *,XWMHints *,
    XWindowInfo *),
  XQueryPosition(Display *,const Window,int *,int *),
  XRefreshWindow(Display *,const XWindowInfo *,const XEvent *),
  XSetCursorState(Display *,XWindows *,const MagickStatusType),
  XUserPreferences(XResourceInfo *),
  XWarning(const ExceptionType,const char *,const char *);

extern MagickPrivate Window
  XWindowByID(Display *,const Window,const size_t),
  XWindowByName(Display *,const Window,const char *),
  XWindowByProperty(Display *,const Window,const Atom);

extern MagickPrivate XFontStruct
  *XBestFont(Display *,const XResourceInfo *,const MagickBooleanType);

extern MagickPrivate XVisualInfo
  *XBestVisualInfo(Display *,XStandardColormap *,XResourceInfo *);

extern MagickPrivate XWindows
  *XInitializeWindows(Display *,XResourceInfo *),
  *XSetWindows(XWindows *);

extern MagickExport char
  *XGetResourceClass(XrmDatabase,const char *,const char *,char *),
  *XGetResourceInstance(XrmDatabase,const char *,const char *,const char *),
  *XGetScreenDensity(Display *);

extern MagickExport int
  XError(Display *,XErrorEvent *);

extern MagickExport MagickBooleanType
  XRemoteCommand(Display *,const char *,const char *);

extern MagickExport void
  DestroyXResources(void),
  XDestroyResourceInfo(XResourceInfo *),
  XGetResourceInfo(const ImageInfo *,XrmDatabase,const char *,XResourceInfo *),
  XRetainWindowColors(Display *,const Window);

extern MagickExport XrmDatabase
  XGetResourceDatabase(Display *,const char *);

static inline double XPixelIntensity(const XColor *pixel)
{
  double
    intensity;

  if ((pixel->red  == pixel->green) && (pixel->green == pixel->blue))
    return((double) pixel->red);
  intensity=0.212656*pixel->red+0.715158*pixel->green+0.072186*pixel->blue;
  return(intensity);
}

#endif

extern MagickPrivate MagickBooleanType
  XRenderImage(Image *,const DrawInfo *,const PointInfo *,TypeMetric *,
    ExceptionInfo *);

#if defined(__cplusplus) || defined(c_plusplus)
}
#endif

#endif
