C++ (Cpp) cairo_get_user_data Examples

Example #1

File: gskcairoblur.c Project: GNOME/gtk

cairo_t *
gsk_cairo_blur_finish_drawing (cairo_t         *cr,
                               float            radius,
                               const GdkRGBA   *color,
                               GskBlurFlags     blur_flags)
{
  cairo_t *original_cr;
  cairo_surface_t *surface;
  gdouble x_scale;

  if (!needs_blur (radius))
    return cr;

  original_cr = cairo_get_user_data (cr, &original_cr_key);

  /* Blur the surface. */
  surface = cairo_get_target (cr);

  x_scale = 1;
  cairo_surface_get_device_scale (cairo_get_target (cr), &x_scale, NULL);

  gsk_cairo_blur_surface (surface, x_scale * radius, blur_flags);

  gdk_cairo_set_source_rgba (original_cr, color);
  if (blur_flags & GSK_BLUR_REPEAT)
    mask_surface_repeat (original_cr, surface);
  else
    cairo_mask_surface (original_cr, surface, 0, 0);

  cairo_destroy (cr);

  cairo_surface_destroy (surface);

  return original_cr;
}

Example #2

File: cairo-test.c Project: Blueprintts/npm-pdf2svg

const cairo_test_context_t *
cairo_test_get_context (cairo_t *cr)
{
    return cairo_get_user_data (cr, &_cairo_test_context_key);
}