mirror of https://github.com/GNOME/gimp.git
136 lines
4.4 KiB
C
136 lines
4.4 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimpcanvaspassepartout.c
|
|
* Copyright (C) 2010 Sven Neumann <sven@gimp.org>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <gegl.h>
|
|
#include <gtk/gtk.h>
|
|
|
|
#include "display-types.h"
|
|
|
|
#include "gimpcanvas.h"
|
|
#include "gimpcanvaspassepartout.h"
|
|
#include "gimpdisplayshell.h"
|
|
#include "gimpdisplayshell-draw.h"
|
|
#include "gimpdisplayshell-style.h"
|
|
|
|
|
|
/* local function prototypes */
|
|
|
|
static void gimp_canvas_passe_partout_draw (GimpCanvasItem *item,
|
|
GimpDisplayShell *shell,
|
|
cairo_t *cr);
|
|
static cairo_region_t * gimp_canvas_passe_partout_get_extents (GimpCanvasItem *item,
|
|
GimpDisplayShell *shell);
|
|
static void gimp_canvas_passe_partout_fill (GimpCanvasItem *item,
|
|
GimpDisplayShell *shell,
|
|
cairo_t *cr);
|
|
|
|
|
|
G_DEFINE_TYPE (GimpCanvasPassePartout, gimp_canvas_passe_partout,
|
|
GIMP_TYPE_CANVAS_RECTANGLE)
|
|
|
|
#define parent_class gimp_canvas_passe_partout_parent_class
|
|
|
|
|
|
static void
|
|
gimp_canvas_passe_partout_class_init (GimpCanvasPassePartoutClass *klass)
|
|
{
|
|
GimpCanvasItemClass *item_class = GIMP_CANVAS_ITEM_CLASS (klass);
|
|
|
|
item_class->draw = gimp_canvas_passe_partout_draw;
|
|
item_class->get_extents = gimp_canvas_passe_partout_get_extents;
|
|
item_class->fill = gimp_canvas_passe_partout_fill;
|
|
}
|
|
|
|
static void
|
|
gimp_canvas_passe_partout_init (GimpCanvasPassePartout *passe_partout)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gimp_canvas_passe_partout_draw (GimpCanvasItem *item,
|
|
GimpDisplayShell *shell,
|
|
cairo_t *cr)
|
|
{
|
|
gint w, h;
|
|
|
|
gimp_display_shell_draw_get_scaled_image_size (shell, &w, &h);
|
|
|
|
cairo_rectangle (cr, - shell->offset_x, - shell->offset_y, w, h);
|
|
|
|
GIMP_CANVAS_ITEM_CLASS (parent_class)->draw (item, shell, cr);
|
|
}
|
|
|
|
static cairo_region_t *
|
|
gimp_canvas_passe_partout_get_extents (GimpCanvasItem *item,
|
|
GimpDisplayShell *shell)
|
|
{
|
|
cairo_region_t *inner;
|
|
cairo_region_t *outer;
|
|
GdkRectangle rect = { 0, 0, 0, 0 };
|
|
|
|
rect.x = - shell->offset_x;
|
|
rect.y = - shell->offset_y;
|
|
gimp_display_shell_draw_get_scaled_image_size (shell,
|
|
&rect.width, &rect.height);
|
|
|
|
outer = cairo_region_create_rectangle ((cairo_rectangle_int_t *) &rect);
|
|
|
|
inner = GIMP_CANVAS_ITEM_CLASS (parent_class)->get_extents (item, shell);
|
|
|
|
cairo_region_subtract (outer, inner);
|
|
|
|
return outer;
|
|
}
|
|
|
|
static void
|
|
gimp_canvas_passe_partout_fill (GimpCanvasItem *item,
|
|
GimpDisplayShell *shell,
|
|
cairo_t *cr)
|
|
{
|
|
cairo_translate (cr, -shell->offset_x, -shell->offset_y);
|
|
|
|
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
|
|
cairo_clip (cr);
|
|
|
|
gimp_display_shell_set_passe_partout_style (shell, cr);
|
|
cairo_paint (cr);
|
|
}
|
|
|
|
GimpCanvasItem *
|
|
gimp_canvas_passe_partout_new (GimpDisplayShell *shell,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble width,
|
|
gdouble height)
|
|
{
|
|
g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
|
|
|
|
return g_object_new (GIMP_TYPE_CANVAS_PASSE_PARTOUT,
|
|
"shell", shell,
|
|
"x", x,
|
|
"y", y,
|
|
"width", width,
|
|
"height", height,
|
|
"filled", TRUE,
|
|
NULL);
|
|
}
|