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/** \file
* \brief Gdk Cairo Base Driver
*
* See Copyright Notice in cd.h
*/
#ifndef __CDGDK_H
#define __CDGDK_H
#include <gdk/gdk.h>
#include "cd.h"
#include "cd_private.h"
struct _cdCtxImage {
unsigned int w, h, depth;
GdkPixmap* img;
GdkScreen* scr;
GdkVisual* vis;
};
struct _cdCtxCanvas {
cdCanvas* canvas;
GdkVisual* vis; /* visual of the application */
GdkScreen *scr;
GdkGC* gc; /* graphic context */
GdkDrawable* wnd; /* drawable */
GdkColor fg, bg;
GdkGCValues gcval;
GdkPixmap* last_hatch; /* last hatch set by user */
GdkPixmap* last_stipple; /* last stipple set by user */
GdkPixmap* last_pattern; /* last pattern set by user */
GdkGC* last_stipple_gc;
int last_stipple_w;
int last_stipple_h;
GdkGC* last_pattern_gc;
int last_pattern_w;
int last_pattern_h;
unsigned int depth; /* canvas depth */
GdkPixmap* clip_polygon; /* clipping polygon */
GdkPixmap* new_region;
GdkPixmap* region_aux;
GdkGC* region_aux_gc;
void *data; /* specific information about the driver */
long int *xidata; /* Image cache */
int xisize;
GdkColormap* colormap; /* Color map default */
GdkColor* color_table; /* Color table of the color map */
int num_colors; /* Size of the color table */
int rshift; /* Red constant to calculate the true color */
int gshift; /* Green constant to calculate the true color */
int bshift; /* Blue constant to calculate the true color */
double xmatrix[6]; /* Transformation matrix that includes axis inversion */
float rotate_angle;
int rotate_center_x,
rotate_center_y;
cairo_scaled_font_t* font; /* Scaled font (character font + size font */
cdImage* image_dbuffer; /* Used by double buffer driver */
cdCanvas* canvas_dbuffer;
};
#define cdCOLOR8TO16(_x) (_x*257) /* 65535/255 = 257 */
#define cdCOLOR16TO8(_x) ((unsigned char)(_x/257))
extern GdkColor (*cdgdkGetPixel)(cdCtxCanvas *ctxcanvas, unsigned long rgb);
extern void (*cdxGetRGB)(cdCtxCanvas *ctxcanvas, unsigned long pixel,
unsigned char* red,
unsigned char* green,
unsigned char* blue);
cdCtxCanvas *cdgdkCreateCanvas(cdCanvas* canvas, GdkDrawable* wnd, GdkScreen* scr, GdkVisual* vis);
void cdgdkInitTable(cdCanvas* canvas);
void cdgdkKillCanvas(cdCtxCanvas *ctxcanvas);
int cdgdkClip(cdCtxCanvas *ctxcanvas, int clip_mode);
void cdgdkPoly(cdCtxCanvas *ctxcanvas, int mode, cdPoint* poly, int n);
#endif
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