C++ (Cpp) mate_color_button_has_alpha 예제들

예제 #1

/* Handle exposure events for the color picker's drawing area */
static gboolean
draw (GtkWidget      *widget, 
      cairo_t        *cr, 
      gpointer        data)
{
  MateColorButton *color_button = MATE_COLOR_BUTTON (data);
  cairo_pattern_t *checkered;

  if (mate_color_button_has_alpha (color_button))
    {
      cairo_save (cr);

      cairo_set_source_rgb (cr, CHECK_DARK, CHECK_DARK, CHECK_DARK);
      cairo_paint (cr);

      cairo_set_source_rgb (cr, CHECK_LIGHT, CHECK_LIGHT, CHECK_LIGHT);
      cairo_scale (cr, CHECK_SIZE, CHECK_SIZE);

      checkered = mate_color_button_get_checkered ();
      cairo_mask (cr, checkered);
      cairo_pattern_destroy (checkered);

      cairo_restore (cr);

      cairo_set_source_rgba (cr,
                             color_button->priv->color.red / 65535.,
                             color_button->priv->color.green / 65535.,
                             color_button->priv->color.blue / 65535.,
                             color_button->priv->alpha / 65535.);
    }
  else
    {
      gdk_cairo_set_source_color (cr, &color_button->priv->color);
    }

  cairo_paint (cr);

  if (!gtk_widget_is_sensitive (GTK_WIDGET (color_button)))
    {
      gdk_cairo_set_source_color (cr, &gtk_widget_get_style (GTK_WIDGET(color_button))->bg[GTK_STATE_INSENSITIVE]);
      checkered = mate_color_button_get_checkered ();
      cairo_mask (cr, checkered);
      cairo_pattern_destroy (checkered);
    }

  return FALSE;
}

예제 #2

파일: mate-colorbutton.c 프로젝트: bookman400/mate-desktop

static gint
expose_event (GtkWidget      *widget, 
              GdkEventExpose *event, 
              gpointer        data)
#endif
{
  MateColorButton *color_button = MATE_COLOR_BUTTON (data);
  GtkAllocation allocation;
  cairo_pattern_t *checkered;
#if !GTK_CHECK_VERSION (3, 0, 0)
  cairo_t *cr;

  cr = gdk_cairo_create (event->window);

  gtk_widget_get_allocation (widget, &allocation);
  gdk_cairo_rectangle (cr, &allocation);
  cairo_clip (cr);
#endif

  if (mate_color_button_has_alpha (color_button))
    {
      cairo_save (cr);

      cairo_set_source_rgb (cr, CHECK_DARK, CHECK_DARK, CHECK_DARK);
      cairo_paint (cr);

      cairo_set_source_rgb (cr, CHECK_LIGHT, CHECK_LIGHT, CHECK_LIGHT);
      cairo_scale (cr, CHECK_SIZE, CHECK_SIZE);

      checkered = mate_color_button_get_checkered ();
      cairo_mask (cr, checkered);
      cairo_pattern_destroy (checkered);

      cairo_restore (cr);

      cairo_set_source_rgba (cr,
                             color_button->priv->color.red / 65535.,
                             color_button->priv->color.green / 65535.,
                             color_button->priv->color.blue / 65535.,
                             color_button->priv->alpha / 65535.);
    }
  else
    {
      gdk_cairo_set_source_color (cr, &color_button->priv->color);
    }

  cairo_paint (cr);

  if (!gtk_widget_is_sensitive (GTK_WIDGET (color_button)))
    {
      gdk_cairo_set_source_color (cr, &gtk_widget_get_style (GTK_WIDGET(color_button))->bg[GTK_STATE_INSENSITIVE]);
      checkered = mate_color_button_get_checkered ();
      cairo_mask (cr, checkered);
      cairo_pattern_destroy (checkered);
    }

#if !GTK_CHECK_VERSION (3, 0, 0)
  cairo_destroy (cr);
#endif

  return FALSE;
}