gimp/app/tools/gimpellipseselecttool.c

136 lines
4.6 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimpchannel-select.h"
#include "core/gimpimage.h"
#include "widgets/gimphelp-ids.h"
#include "display/gimpdisplay.h"
#include "gimpellipseselecttool.h"
#include "gimprectangleselectoptions.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
static void gimp_ellipse_select_tool_draw (GimpDrawTool *draw_tool);
static void gimp_ellipse_select_tool_select (GimpRectangleSelectTool *rect_tool,
GimpChannelOps operation,
gint x,
gint y,
gint w,
gint h);
G_DEFINE_TYPE (GimpEllipseSelectTool, gimp_ellipse_select_tool,
GIMP_TYPE_RECTANGLE_SELECT_TOOL)
#define parent_class gimp_ellipse_select_tool_parent_class
void
gimp_ellipse_select_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_ELLIPSE_SELECT_TOOL,
GIMP_TYPE_RECTANGLE_SELECT_OPTIONS,
gimp_rectangle_select_options_gui,
0,
"gimp-ellipse-select-tool",
_("Ellipse Select"),
_("Ellipse Select Tool: Select an elliptical region"),
N_("_Ellipse Select"), "E",
NULL, GIMP_HELP_TOOL_ELLIPSE_SELECT,
GIMP_STOCK_TOOL_ELLIPSE_SELECT,
data);
}
static void
gimp_ellipse_select_tool_class_init (GimpEllipseSelectToolClass *klass)
{
GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
GimpRectangleSelectToolClass *rect_tool_class = GIMP_RECTANGLE_SELECT_TOOL_CLASS (klass);
draw_tool_class->draw = gimp_ellipse_select_tool_draw;
rect_tool_class->select = gimp_ellipse_select_tool_select;
}
static void
gimp_ellipse_select_tool_init (GimpEllipseSelectTool *ellipse_select)
{
GimpTool *tool = GIMP_TOOL (ellipse_select);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_ELLIPSE_SELECT);
}
static void
gimp_ellipse_select_tool_draw (GimpDrawTool *draw_tool)
{
gint x1, y1, x2, y2;
GIMP_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool);
g_object_get (draw_tool,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
gimp_draw_tool_add_arc (draw_tool,
FALSE,
x1, y1,
x2 - x1, y2 - y1,
0.0, 2 * G_PI);
}
static void
gimp_ellipse_select_tool_select (GimpRectangleSelectTool *rect_tool,
GimpChannelOps operation,
gint x,
gint y,
gint w,
gint h)
{
GimpTool *tool = GIMP_TOOL (rect_tool);
GimpSelectionOptions *options = GIMP_SELECTION_TOOL_GET_OPTIONS (rect_tool);
GimpImage *image = gimp_display_get_image (tool->display);
gimp_channel_select_ellipse (gimp_image_get_mask (image),
x, y, w, h,
operation,
options->antialias,
options->feather,
options->feather_radius,
options->feather_radius,
TRUE);
}