New Cairo driver

1 files changed, 80 insertions, 0 deletions

diff --git a/src/cairo/cdcaironative_gdk.c b/src/cairo/cdcaironative_gdk.c
new file mode 100644
index 0000000..98face0
--- /dev/null
+++ b/src/cairo/cdcaironative_gdk.c
@@ -0,0 +1,80 @@
+/** \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)
+{
+  gdk_drawable_get_size(ctxcanvas->drawable, &ctxcanvas->canvas->w, &ctxcanvas->canvas->h);
+
+  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_t* cr;
+  GdkScreen* screen;
+  GdkDrawable* drawable = (GdkDrawable*)data;
+
+  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 | CD_CAP_FPRIMTIVES),
+  1,
+  cdcreatecanvas,
+  cdinittable,
+  NULL,
+  NULL,
+};
+
+
+cdContext* cdContextCairoNativeWindow(void)
+{
+  return &cdNativeWindowContext;
+}