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/** \file
* \brief Cairo Native Window Driver
*
* See Copyright Notice in cd.h
*/
#include <stdlib.h>
#include <stdio.h>
#include <gdk/gdk.h>
#include "cdcairoctx.h"
#include "cdnative.h"
static void cdkillcanvas(cdCtxCanvas *ctxcanvas)
{
cdcairoKillCanvas(ctxcanvas);
}
int cdactivate(cdCtxCanvas *ctxcanvas)
{
cdCanvas* canvas = ctxcanvas->canvas;
int old_w = canvas->w;
int old_h = canvas->h;
gdk_drawable_get_size(ctxcanvas->drawable, &canvas->w, &canvas->h);
ctxcanvas->canvas->w_mm = ((double)canvas->w) / canvas->xres;
ctxcanvas->canvas->h_mm = ((double)canvas->h) / canvas->yres;
if (old_w != canvas->w || old_h != canvas->h)
{
/* Re-create the context so internal size is updated. */
cairo_destroy(ctxcanvas->cr);
ctxcanvas->cr = gdk_cairo_create(ctxcanvas->drawable);
ctxcanvas->last_source = -1;
cairo_save(ctxcanvas->cr);
cairo_set_operator(ctxcanvas->cr, CAIRO_OPERATOR_OVER);
/* update canvas attributes */
canvas->cxForeground(ctxcanvas, canvas->foreground);
canvas->cxLineStyle(ctxcanvas, canvas->line_style);
canvas->cxLineWidth(ctxcanvas, canvas->line_width);
canvas->cxLineCap(ctxcanvas, canvas->line_cap);
canvas->cxLineJoin(ctxcanvas, canvas->line_join);
canvas->cxInteriorStyle(ctxcanvas, canvas->interior_style);
if (canvas->clip_mode != CD_CLIPOFF) canvas->cxClip(ctxcanvas, canvas->clip_mode);
if (canvas->use_matrix) canvas->cxTransform(ctxcanvas, canvas->matrix);
}
return CD_OK;
}
static void cdcreatecanvas(cdCanvas* canvas, void *data)
{
cdCtxCanvas *ctxcanvas;
cairo_t* cr;
GdkScreen* screen;
GdkDrawable* drawable = (GdkDrawable*)data;
if (!GDK_IS_DRAWABLE(drawable))
return;
cr = gdk_cairo_create(drawable);
if (!cr)
return;
screen = gdk_drawable_get_screen(drawable);
canvas->bpp = gdk_drawable_get_depth(drawable);
canvas->xres = ((double)gdk_screen_get_width(screen) / (double)gdk_screen_get_width_mm(screen));
canvas->yres = ((double)gdk_screen_get_height(screen) / (double)gdk_screen_get_height_mm(screen));
gdk_drawable_get_size(drawable, &canvas->w, &canvas->h);
canvas->w_mm = ((double)canvas->w) / canvas->xres;
canvas->h_mm = ((double)canvas->h) / canvas->yres;
ctxcanvas = cdcairoCreateCanvas(canvas, cr);
ctxcanvas->drawable = drawable;
}
static void cdinittable(cdCanvas* canvas)
{
cdcairoInitTable(canvas);
canvas->cxKillCanvas = cdkillcanvas;
canvas->cxActivate = cdactivate;
}
/******************************************************/
static cdContext cdNativeWindowContext =
{
CD_CAP_ALL & ~(CD_CAP_PLAY | CD_CAP_YAXIS | CD_CAP_REGION | CD_CAP_WRITEMODE | CD_CAP_PALETTE),
1,
cdcreatecanvas,
cdinittable,
NULL,
NULL,
};
cdContext* cdContextCairoNativeWindow(void)
{
return &cdNativeWindowContext;
}
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