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/** \file
* \brief Cairo Native Window Driver
*
* See Copyright Notice in cd.h
*/
#include <stdlib.h>
#include <stdio.h>
#include "cdcairoctx.h"
#include "cdnative.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <cairo-xlib.h>
static void cdkillcanvas(cdCtxCanvas *ctxcanvas)
{
cdcairoKillCanvas(ctxcanvas);
}
int cdactivate(cdCtxCanvas *ctxcanvas)
{
Window root;
int x, y;
unsigned int bw, d;
XGetGeometry(ctxcanvas->dpy, ctxcanvas->wnd, &root, &x, &y,
(unsigned int*)&ctxcanvas->canvas->w, (unsigned int*)&ctxcanvas->canvas->h, &bw, &d);
ctxcanvas->canvas->w_mm = ((double)ctxcanvas->canvas->w) / ctxcanvas->canvas->xres;
ctxcanvas->canvas->h_mm = ((double)ctxcanvas->canvas->h) / ctxcanvas->canvas->yres;
return CD_OK;
}
static void cdcreatecanvas(cdCanvas* canvas, void *data)
{
cdCtxCanvas* ctxcanvas;
cairo_surface_t *surface;
char* data_str = (char*)data;
Window wnd, root;
Display *dpy;
XWindowAttributes wa;
int x, y;
unsigned int bw;
#ifdef SunOS_OLD
sscanf(data_str, "%d %lu", &dpy, &wnd);
#else
sscanf(data_str, "%p %lu", &dpy, &wnd);
#endif
if (!dpy || !wnd)
return;
XGetWindowAttributes(dpy, wnd, &wa);
XGetGeometry(dpy, wnd, &root, &x, &y, (unsigned int*)&canvas->w, (unsigned int*)&canvas->h, &bw, (unsigned int*)&canvas->bpp);
canvas->xres = ((double)DisplayWidth(dpy, XScreenNumberOfScreen(wa.screen)) / (double)DisplayWidthMM(dpy, XScreenNumberOfScreen(wa.screen)));
canvas->yres = ((double)DisplayHeight(dpy, XScreenNumberOfScreen(wa.screen)) / (double)DisplayHeightMM(dpy, XScreenNumberOfScreen(wa.screen)));
surface = cairo_xlib_surface_create(dpy, wnd, wa.visual, canvas->w, canvas->h);
canvas->w_mm = ((double)canvas->w) / canvas->xres;
canvas->h_mm = ((double)canvas->h) / canvas->yres;
ctxcanvas = cdcairoCreateCanvas(canvas, cairo_create(surface));
cairo_surface_destroy(surface);
ctxcanvas->dpy = dpy;
ctxcanvas->wnd = wnd;
}
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 | CD_CAP_FPRIMTIVES),
1,
cdcreatecanvas,
cdinittable,
NULL,
NULL,
};
cdContext* cdContextCairoNativeWindow(void)
{
return &cdNativeWindowContext;
}
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