GdkCursor* create_blank_cursor(){
GdkPixmap *pixmap;
GdkBitmap *mask;
char buffer [( 32 * 32 ) / 8];
memset( buffer, 0, ( 32 * 32 ) / 8 );
GdkColor white = {0, 0xffff, 0xffff, 0xffff};
GdkColor black = {0, 0x0000, 0x0000, 0x0000};
pixmap = gdk_bitmap_create_from_data( 0, buffer, 32, 32 );
mask = gdk_bitmap_create_from_data( 0, buffer, 32, 32 );
GdkCursor *cursor = gdk_cursor_new_from_pixmap( pixmap, mask, &white, &black, 1, 1 );
gdk_drawable_unref( pixmap );
gdk_drawable_unref( mask );
return cursor;
}
static void
set_size(DiaRenderer *object, gpointer window,
int width, int height)
{
DiaCairoInteractiveRenderer *renderer = DIA_CAIRO_INTERACTIVE_RENDERER (object);
DiaCairoRenderer *base_renderer = DIA_CAIRO_RENDERER (object);
renderer->width = width;
renderer->height = height;
if (renderer->pixmap != NULL)
gdk_drawable_unref(renderer->pixmap);
/* TODO: we can probably get rid of this extra pixmap and just draw directly to what gdk_cairo_create() gives us for the window */
renderer->pixmap = gdk_pixmap_new(GDK_WINDOW(window), width, height, -1);
if (base_renderer->surface != NULL)
cairo_surface_destroy(base_renderer->surface);
if (renderer->gc == NULL) {
renderer->gc = gdk_gc_new(renderer->pixmap);
}
}
static void
set_size(DiaRenderer *object, gpointer window,
int width, int height)
{
DiaGdkRenderer *renderer = DIA_GDK_RENDERER (object);
if (renderer->pixmap != NULL)
gdk_drawable_unref(renderer->pixmap);
if (window)
renderer->pixmap = gdk_pixmap_new(GDK_WINDOW(window), width, height, -1);
else /* the integrated UI insist to call us too early */
renderer->pixmap = gdk_pixmap_new(NULL, width, height, 24);
if (renderer->gc == NULL) {
renderer->gc = gdk_gc_new(renderer->pixmap);
gdk_gc_set_line_attributes(renderer->gc,
renderer->line_width,
renderer->line_style,
renderer->cap_style,
renderer->join_style);
}
}