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gimp/app/widgets/gimpselectioneditor.c

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/* The GIMP -- an 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpchannel-select.h"
#include "core/gimpcontainer.h"
#include "core/gimpimage.h"
#include "core/gimpimage-pick-color.h"
#include "core/gimpselection.h"
#include "core/gimptoolinfo.h"
#ifdef __GNUC__
#warning #include "tools/tools-types.h"
#endif
#include "tools/tools-types.h"
#include "tools/gimpselectionoptions.h"
#include "gimpselectioneditor.h"
#include "gimpdnd.h"
#include "gimpmenufactory.h"
#include "gimpview.h"
#include "gimpviewrenderer.h"
#include "gimpwidgets-utils.h"
#include "gimp-intl.h"
static void gimp_selection_editor_class_init (GimpSelectionEditorClass *klass);
static void gimp_selection_editor_init (GimpSelectionEditor *selection_editor);
static GObject * gimp_selection_editor_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_selection_editor_set_image (GimpImageEditor *editor,
GimpImage *gimage);
static gboolean gimp_selection_preview_button_press(GtkWidget *widget,
GdkEventButton *bevent,
GimpSelectionEditor *editor);
static void gimp_selection_editor_drop_color (GtkWidget *widget,
const GimpRGB *color,
gpointer data);
static void gimp_selection_editor_mask_changed (GimpImage *gimage,
GimpSelectionEditor *editor);
static GimpImageEditorClass *parent_class = NULL;
GType
gimp_selection_editor_get_type (void)
{
static GType editor_type = 0;
if (! editor_type)
{
static const GTypeInfo editor_info =
{
sizeof (GimpSelectionEditorClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_selection_editor_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpSelectionEditor),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_selection_editor_init,
};
editor_type = g_type_register_static (GIMP_TYPE_IMAGE_EDITOR,
"GimpSelectionEditor",
&editor_info, 0);
}
return editor_type;
}
static void
gimp_selection_editor_class_init (GimpSelectionEditorClass* klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpImageEditorClass *image_editor_class = GIMP_IMAGE_EDITOR_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->constructor = gimp_selection_editor_constructor;
image_editor_class->set_image = gimp_selection_editor_set_image;
}
static void
gimp_selection_editor_init (GimpSelectionEditor *editor)
{
GtkWidget *frame;
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (editor), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
editor->preview = gimp_view_new_by_types (GIMP_TYPE_VIEW,
GIMP_TYPE_SELECTION,
GIMP_VIEW_SIZE_HUGE,
0, TRUE);
gimp_view_renderer_set_background (GIMP_VIEW (editor->preview)->renderer,
GIMP_STOCK_TEXTURE);
gtk_widget_set_size_request (editor->preview,
GIMP_VIEW_SIZE_HUGE, GIMP_VIEW_SIZE_HUGE);
gimp_view_set_expand (GIMP_VIEW (editor->preview), TRUE);
gtk_container_add (GTK_CONTAINER (frame), editor->preview);
gtk_widget_show (editor->preview);
g_signal_connect (editor->preview, "button_press_event",
G_CALLBACK (gimp_selection_preview_button_press),
editor);
gimp_dnd_color_dest_add (editor->preview,
gimp_selection_editor_drop_color,
editor);
gtk_widget_set_sensitive (GTK_WIDGET (editor), FALSE);
}
static GObject *
gimp_selection_editor_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpSelectionEditor *editor;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
editor = GIMP_SELECTION_EDITOR (object);
editor->all_button =
gimp_editor_add_action_button (GIMP_EDITOR (editor), "select",
"select-all", NULL);
editor->none_button =
gimp_editor_add_action_button (GIMP_EDITOR (editor), "select",
"select-none", NULL);
editor->invert_button =
gimp_editor_add_action_button (GIMP_EDITOR (editor), "select",
"select-invert", NULL);
editor->save_button =
gimp_editor_add_action_button (GIMP_EDITOR (editor), "select",
"select-save", NULL);
editor->path_button =
gimp_editor_add_action_button (GIMP_EDITOR (editor), "vectors",
"vectors-selection-to-vectors",
"vectors-selection-to-vectors-advanced",
GDK_SHIFT_MASK,
NULL);
editor->stroke_button =
gimp_editor_add_action_button (GIMP_EDITOR (editor), "select",
"select-stroke",
"select-stroke-last-values",
GDK_SHIFT_MASK,
NULL);
return object;
}
static void
gimp_selection_editor_set_image (GimpImageEditor *image_editor,
GimpImage *gimage)
{
GimpSelectionEditor *editor = GIMP_SELECTION_EDITOR (image_editor);
if (image_editor->gimage)
{
g_signal_handlers_disconnect_by_func (image_editor->gimage,
gimp_selection_editor_mask_changed,
editor);
}
GIMP_IMAGE_EDITOR_CLASS (parent_class)->set_image (image_editor, gimage);
if (gimage)
{
g_signal_connect (gimage, "mask_changed",
G_CALLBACK (gimp_selection_editor_mask_changed),
editor);
gimp_view_set_viewable (GIMP_VIEW (editor->preview),
GIMP_VIEWABLE (gimp_image_get_mask (gimage)));
}
else
{
gimp_view_set_viewable (GIMP_VIEW (editor->preview), NULL);
}
}
/* public functions */
GtkWidget *
gimp_selection_editor_new (GimpMenuFactory *menu_factory)
{
g_return_val_if_fail (GIMP_IS_MENU_FACTORY (menu_factory), NULL);
return g_object_new (GIMP_TYPE_SELECTION_EDITOR,
"menu-factory", menu_factory,
"menu-identifier", "<SelectionEditor>",
"ui-path", "/selection-editor-popup",
NULL);
}
static gboolean
gimp_selection_preview_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpSelectionEditor *editor)
{
GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
GimpViewRenderer *renderer;
GimpToolInfo *tool_info;
GimpSelectionOptions *options;
GimpDrawable *drawable;
SelectOps operation = SELECTION_REPLACE;
gint x, y;
GimpRGB color;
if (! image_editor->gimage)
return TRUE;
renderer = GIMP_VIEW (editor->preview)->renderer;
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (image_editor->gimage->gimp->tool_info_list,
"gimp-by-color-select-tool");
if (! tool_info)
return TRUE;
options = GIMP_SELECTION_OPTIONS (tool_info->tool_options);
drawable = gimp_image_active_drawable (image_editor->gimage);
if (! drawable)
return TRUE;
if (bevent->state & GDK_SHIFT_MASK)
{
if (bevent->state & GDK_CONTROL_MASK)
{
operation = SELECTION_INTERSECT;
}
else
{
operation = SELECTION_ADD;
}
}
else if (bevent->state & GDK_CONTROL_MASK)
{
operation = SELECTION_SUBTRACT;
}
x = image_editor->gimage->width * bevent->x / renderer->width;
y = image_editor->gimage->height * bevent->y / renderer->height;
if (gimp_image_pick_color (image_editor->gimage, drawable, x, y,
options->sample_merged,
FALSE, 0.0,
NULL,
&color, NULL))
{
gimp_channel_select_by_color (gimp_image_get_mask (image_editor->gimage),
drawable,
options->sample_merged,
&color,
options->threshold,
options->select_transparent,
operation,
options->antialias,
options->feather,
options->feather_radius,
options->feather_radius);
gimp_image_flush (image_editor->gimage);
}
return TRUE;
}
static void
gimp_selection_editor_drop_color (GtkWidget *widget,
const GimpRGB *color,
gpointer data)
{
GimpImageEditor *editor = GIMP_IMAGE_EDITOR (data);
GimpToolInfo *tool_info;
GimpSelectionOptions *options;
GimpDrawable *drawable;
if (! editor->gimage)
return;
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (editor->gimage->gimp->tool_info_list,
"gimp-by-color-select-tool");
if (! tool_info)
return;
options = GIMP_SELECTION_OPTIONS (tool_info->tool_options);
drawable = gimp_image_active_drawable (editor->gimage);
if (! drawable)
return;
gimp_channel_select_by_color (gimp_image_get_mask (editor->gimage),
drawable,
options->sample_merged,
color,
options->threshold,
options->select_transparent,
options->operation,
options->antialias,
options->feather,
options->feather_radius,
options->feather_radius);
gimp_image_flush (editor->gimage);
}
static void
gimp_selection_editor_mask_changed (GimpImage *gimage,
GimpSelectionEditor *editor)
{
gimp_view_renderer_invalidate (GIMP_VIEW (editor->preview)->renderer);
}
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