gimp/app/tools/gimpfiltertool-widgets.c

293 lines
9.8 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpfiltertool-widgets.c
*
* 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 "tools-types.h"
#include "core/gimpitem.h"
#include "display/gimpdisplay.h"
#include "display/gimptoolline.h"
#include "gimpfilteroptions.h"
#include "gimpfiltertool.h"
#include "gimpfiltertool-widgets.h"
typedef struct _Controller Controller;
struct _Controller
{
GimpFilterTool *filter_tool;
GimpControllerType controller_type;
GimpToolWidget *widget;
GCallback creator_callback;
gpointer creator_data;
};
/* local function prototypes */
static void gimp_filter_tool_set_line (Controller *controller,
GeglRectangle *area,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2);
static void gimp_filter_tool_line_changed (GimpToolWidget *widget,
Controller *controller);
static void gimp_filter_tool_set_slider_line (Controller *controller,
GeglRectangle *area,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2,
const GimpControllerSlider *sliders,
gint n_sliders);
static void gimp_filter_tool_slider_line_changed (GimpToolWidget *widget,
Controller *controller);
/* public functions */
GimpToolWidget *
gimp_filter_tool_create_widget (GimpFilterTool *filter_tool,
GimpControllerType controller_type,
const gchar *status_title,
GCallback callback,
gpointer callback_data,
GCallback *set_func,
gpointer *set_func_data)
{
GimpTool *tool;
GimpDisplayShell *shell;
Controller *controller;
g_return_val_if_fail (GIMP_IS_FILTER_TOOL (filter_tool), NULL);
tool = GIMP_TOOL (filter_tool);
g_return_val_if_fail (tool->display != NULL, NULL);
shell = gimp_display_get_shell (tool->display);
controller = g_new0 (Controller, 1);
controller->filter_tool = filter_tool;
controller->controller_type = controller_type;
controller->creator_callback = callback;
controller->creator_data = callback_data;
switch (controller_type)
{
case GIMP_CONTROLLER_TYPE_LINE:
controller->widget = gimp_tool_line_new (shell, 100, 100, 500, 500);
g_object_set (controller->widget,
"status-title", status_title,
NULL);
g_signal_connect (controller->widget, "changed",
G_CALLBACK (gimp_filter_tool_line_changed),
controller);
*set_func = (GCallback) gimp_filter_tool_set_line;
*set_func_data = controller;
break;
case GIMP_CONTROLLER_TYPE_SLIDER_LINE:
controller->widget = gimp_tool_line_new (shell, 100, 100, 500, 500);
g_object_set (controller->widget,
"status-title", status_title,
NULL);
g_signal_connect (controller->widget, "changed",
G_CALLBACK (gimp_filter_tool_slider_line_changed),
controller);
*set_func = (GCallback) gimp_filter_tool_set_slider_line;
*set_func_data = controller;
break;
}
g_object_set_data_full (G_OBJECT (controller->widget),
"controller", controller,
(GDestroyNotify) g_free);
return controller->widget;
}
/* private functions */
static void
gimp_filter_tool_set_line (Controller *controller,
GeglRectangle *area,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2)
{
GimpTool *tool = GIMP_TOOL (controller->filter_tool);
GimpDrawable *drawable = tool->drawable;
if (drawable)
{
gint off_x, off_y;
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
x1 += off_x + area->x;
y1 += off_y + area->y;
x2 += off_x + area->x;
y2 += off_y + area->y;
}
g_signal_handlers_block_by_func (controller->widget,
gimp_filter_tool_line_changed,
controller);
g_object_set (controller->widget,
"x1", x1,
"y1", y1,
"x2", x2,
"y2", y2,
NULL);
g_signal_handlers_unblock_by_func (controller->widget,
gimp_filter_tool_line_changed,
controller);
}
static void
gimp_filter_tool_line_changed (GimpToolWidget *widget,
Controller *controller)
{
GimpFilterTool *filter_tool = controller->filter_tool;
GimpControllerLineCallback line_callback;
gdouble x1, y1, x2, y2;
gint off_x, off_y;
GeglRectangle area;
line_callback = (GimpControllerLineCallback) controller->creator_callback;
g_object_get (widget,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
gimp_filter_tool_get_drawable_area (filter_tool, &off_x, &off_y, &area);
x1 -= off_x + area.x;
y1 -= off_y + area.y;
x2 -= off_x + area.x;
y2 -= off_y + area.y;
line_callback (controller->creator_data,
&area, x1, y1, x2, y2);
}
static void
gimp_filter_tool_set_slider_line (Controller *controller,
GeglRectangle *area,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2,
const GimpControllerSlider *sliders,
gint n_sliders)
{
GimpTool *tool = GIMP_TOOL (controller->filter_tool);
GimpDrawable *drawable = tool->drawable;
if (drawable)
{
gint off_x, off_y;
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
x1 += off_x + area->x;
y1 += off_y + area->y;
x2 += off_x + area->x;
y2 += off_y + area->y;
}
g_signal_handlers_block_by_func (controller->widget,
gimp_filter_tool_slider_line_changed,
controller);
g_object_set (controller->widget,
"x1", x1,
"y1", y1,
"x2", x2,
"y2", y2,
NULL);
gimp_tool_line_set_sliders (GIMP_TOOL_LINE (controller->widget),
sliders, n_sliders);
g_signal_handlers_unblock_by_func (controller->widget,
gimp_filter_tool_slider_line_changed,
controller);
}
static void
gimp_filter_tool_slider_line_changed (GimpToolWidget *widget,
Controller *controller)
{
GimpFilterTool *filter_tool = controller->filter_tool;
GimpControllerSliderLineCallback slider_line_callback;
gdouble x1, y1, x2, y2;
const GimpControllerSlider *sliders;
gint n_sliders;
gint off_x, off_y;
GeglRectangle area;
slider_line_callback =
(GimpControllerSliderLineCallback) controller->creator_callback;
g_object_get (widget,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
sliders = gimp_tool_line_get_sliders (GIMP_TOOL_LINE (controller->widget),
&n_sliders);
gimp_filter_tool_get_drawable_area (filter_tool, &off_x, &off_y, &area);
x1 -= off_x + area.x;
y1 -= off_y + area.y;
x2 -= off_x + area.x;
y2 -= off_y + area.y;
slider_line_callback (controller->creator_data,
&area, x1, y1, x2, y2, sliders, n_sliders);
}