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/* 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimpdrawable.h"
#include "paint/gimperaseroptions.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpwidgets-utils.h"
#include "gimperasertool.h"
#include "gimppaintoptions-gui.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
static void gimp_eraser_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display);
static void gimp_eraser_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display);
static gboolean gimp_eraser_tool_is_alpha_only (GimpPaintTool *paint_tool,
GimpDrawable *drawable);
static GtkWidget * gimp_eraser_options_gui (GimpToolOptions *tool_options);
G_DEFINE_TYPE (GimpEraserTool, gimp_eraser_tool, GIMP_TYPE_BRUSH_TOOL)
#define parent_class gimp_eraser_tool_parent_class
void
gimp_eraser_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_ERASER_TOOL,
GIMP_TYPE_ERASER_OPTIONS,
gimp_eraser_options_gui,
GIMP_PAINT_OPTIONS_CONTEXT_MASK,
"gimp-eraser-tool",
_("Eraser"),
_("Eraser Tool: Erase to background or transparency using a brush"),
N_("_Eraser"), "<shift>E",
NULL, GIMP_HELP_TOOL_ERASER,
GIMP_ICON_TOOL_ERASER,
data);
}
static void
gimp_eraser_tool_class_init (GimpEraserToolClass *klass)
{
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpPaintToolClass *paint_tool_class = GIMP_PAINT_TOOL_CLASS (klass);
tool_class->modifier_key = gimp_eraser_tool_modifier_key;
tool_class->cursor_update = gimp_eraser_tool_cursor_update;
paint_tool_class->is_alpha_only = gimp_eraser_tool_is_alpha_only;
}
static void
gimp_eraser_tool_init (GimpEraserTool *eraser)
{
GimpTool *tool = GIMP_TOOL (eraser);
GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (eraser);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_ERASER);
gimp_tool_control_set_toggle_cursor_modifier (tool->control,
GIMP_CURSOR_MODIFIER_MINUS);
gimp_paint_tool_enable_color_picker (paint_tool,
GIMP_COLOR_PICK_TARGET_BACKGROUND);
paint_tool->status = _("Click to erase");
paint_tool->status_line = _("Click to erase the line");
paint_tool->status_ctrl = _("%s to pick a background color");
}
static void
gimp_eraser_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display)
{
if (key == GDK_MOD1_MASK)
{
GimpEraserOptions *options = GIMP_ERASER_TOOL_GET_OPTIONS (tool);
g_object_set (options,
"anti-erase", ! options->anti_erase,
NULL);
}
GIMP_TOOL_CLASS (parent_class)->modifier_key (tool, key, press, state, display);
}
static void
gimp_eraser_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
GimpEraserOptions *options = GIMP_ERASER_TOOL_GET_OPTIONS (tool);
gimp_tool_control_set_toggled (tool->control, options->anti_erase);
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static gboolean
gimp_eraser_tool_is_alpha_only (GimpPaintTool *paint_tool,
GimpDrawable *drawable)
{
GimpEraserOptions *options = GIMP_ERASER_TOOL_GET_OPTIONS (paint_tool);
if (! options->anti_erase)
return gimp_drawable_has_alpha (drawable);
else
return TRUE;
}
/* tool options stuff */
static GtkWidget *
gimp_eraser_options_gui (GimpToolOptions *tool_options)
{
GObject *config = G_OBJECT (tool_options);
GtkWidget *vbox = gimp_paint_options_gui (tool_options);
GtkWidget *button;
gchar *str;
/* the anti_erase toggle */
str = g_strdup_printf (_("Anti erase (%s)"),
gimp_get_mod_string (GDK_MOD1_MASK));
button = gimp_prop_check_button_new (config, "anti-erase", str);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_free (str);
return vbox;
}
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