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gimp/app/widgets/gimpcomponenteditor.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcomponenteditor.c
* Copyright (C) 2003 Michael Natterer <mitch@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 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 "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpchannel.h"
#include "core/gimpimage.h"
#include "gimpcellrenderertoggle.h"
#include "gimpcellrendererviewable.h"
#include "gimpcomponenteditor.h"
#include "gimpitemfactory.h"
#include "gimpmenufactory.h"
#include "gimppreviewrendererimage.h"
#include "gimpwidgets-utils.h"
#include "gimp-intl.h"
enum
{
COLUMN_CHANNEL,
COLUMN_VISIBLE,
COLUMN_RENDERER,
COLUMN_NAME,
NUM_COLUMNS
};
static void gimp_component_editor_class_init (GimpComponentEditorClass *klass);
static void gimp_component_editor_init (GimpComponentEditor *editor);
static void gimp_component_editor_set_image (GimpImageEditor *editor,
GimpImage *gimage);
static void gimp_component_editor_create_components (GimpComponentEditor *editor);
static void gimp_component_editor_clear_components (GimpComponentEditor *editor);
static void gimp_component_editor_clicked (GtkCellRendererToggle *cellrenderertoggle,
gchar *path,
GdkModifierType state,
GimpComponentEditor *editor);
static gboolean gimp_component_editor_select (GtkTreeSelection *selection,
GtkTreeModel *model,
GtkTreePath *path,
gboolean path_currently_selected,
gpointer data);
static gboolean gimp_component_editor_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpComponentEditor *editor);
static void gimp_component_editor_renderer_update (GimpPreviewRenderer *renderer,
GimpComponentEditor *editor);
static void gimp_component_editor_mode_changed (GimpImage *gimage,
GimpComponentEditor *editor);
static void gimp_component_editor_alpha_changed (GimpImage *gimage,
GimpComponentEditor *editor);
static void gimp_component_editor_visibility_changed(GimpImage *gimage,
GimpChannelType channel,
GimpComponentEditor *editor);
static void gimp_component_editor_active_changed (GimpImage *gimage,
GimpChannelType channel,
GimpComponentEditor *editor);
static GimpImageEditorClass *parent_class = NULL;
GType
gimp_component_editor_get_type (void)
{
static GType editor_type = 0;
if (! editor_type)
{
static const GTypeInfo editor_info =
{
sizeof (GimpComponentEditorClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gimp_component_editor_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpComponentEditor),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_component_editor_init,
};
editor_type = g_type_register_static (GIMP_TYPE_IMAGE_EDITOR,
"GimpComponentEditor",
&editor_info, 0);
}
return editor_type;
}
static void
gimp_component_editor_class_init (GimpComponentEditorClass *klass)
{
GimpImageEditorClass *image_editor_class;
image_editor_class = GIMP_IMAGE_EDITOR_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
image_editor_class->set_image = gimp_component_editor_set_image;
}
static void
gimp_component_editor_init (GimpComponentEditor *editor)
{
GtkWidget *frame;
GtkListStore *list;
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (editor), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
list = gtk_list_store_new (NUM_COLUMNS,
G_TYPE_INT,
G_TYPE_BOOLEAN,
GIMP_TYPE_PREVIEW_RENDERER,
G_TYPE_STRING);
editor->model = GTK_TREE_MODEL (list);
editor->view = GTK_TREE_VIEW (gtk_tree_view_new_with_model (editor->model));
g_object_unref (list);
gtk_tree_view_set_headers_visible (editor->view, FALSE);
editor->eye_column = gtk_tree_view_column_new ();
gtk_tree_view_append_column (editor->view, editor->eye_column);
editor->eye_cell = gimp_cell_renderer_toggle_new (GIMP_STOCK_VISIBLE);
gtk_tree_view_column_pack_start (editor->eye_column, editor->eye_cell,
FALSE);
gtk_tree_view_column_set_attributes (editor->eye_column, editor->eye_cell,
"active", COLUMN_VISIBLE,
NULL);
g_signal_connect (editor->eye_cell, "clicked",
G_CALLBACK (gimp_component_editor_clicked),
editor);
gtk_tree_view_insert_column_with_attributes (editor->view,
-1, NULL,
gimp_cell_renderer_viewable_new (),
"renderer", COLUMN_RENDERER,
NULL);
gtk_tree_view_insert_column_with_attributes (editor->view,
-1, NULL,
gtk_cell_renderer_text_new (),
"text", COLUMN_NAME,
NULL);
gtk_container_add (GTK_CONTAINER (frame), GTK_WIDGET (editor->view));
gtk_widget_show (GTK_WIDGET (editor->view));
g_signal_connect (editor->view, "button_press_event",
G_CALLBACK (gimp_component_editor_button_press),
editor);
editor->selection = gtk_tree_view_get_selection (editor->view);
gtk_tree_selection_set_mode (editor->selection, GTK_SELECTION_MULTIPLE);
gtk_tree_selection_set_select_function (editor->selection,
gimp_component_editor_select,
editor, NULL);
}
static void
gimp_component_editor_set_image (GimpImageEditor *editor,
GimpImage *gimage)
{
GimpComponentEditor *component_editor;
component_editor = GIMP_COMPONENT_EDITOR (editor);
if (editor->gimage)
{
gimp_component_editor_clear_components (component_editor);
g_signal_handlers_disconnect_by_func (editor->gimage,
gimp_component_editor_mode_changed,
component_editor);
g_signal_handlers_disconnect_by_func (editor->gimage,
gimp_component_editor_alpha_changed,
component_editor);
g_signal_handlers_disconnect_by_func (editor->gimage,
gimp_component_editor_visibility_changed,
component_editor);
g_signal_handlers_disconnect_by_func (editor->gimage,
gimp_component_editor_active_changed,
component_editor);
}
GIMP_IMAGE_EDITOR_CLASS (parent_class)->set_image (editor, gimage);
if (editor->gimage)
{
gimp_component_editor_create_components (component_editor);
g_signal_connect (editor->gimage, "mode_changed",
G_CALLBACK (gimp_component_editor_mode_changed),
component_editor);
g_signal_connect (editor->gimage, "alpha_changed",
G_CALLBACK (gimp_component_editor_alpha_changed),
component_editor);
g_signal_connect (editor->gimage, "component_visibility_changed",
G_CALLBACK (gimp_component_editor_visibility_changed),
component_editor);
g_signal_connect (editor->gimage, "component_active_changed",
G_CALLBACK (gimp_component_editor_active_changed),
component_editor);
}
}
GtkWidget *
gimp_component_editor_new (gint preview_size,
GimpMenuFactory *menu_factory)
{
GimpComponentEditor *editor;
g_return_val_if_fail (preview_size > 0 &&
preview_size <= GIMP_VIEWABLE_MAX_PREVIEW_SIZE, NULL);
g_return_val_if_fail (GIMP_IS_MENU_FACTORY (menu_factory), NULL);
editor = g_object_new (GIMP_TYPE_COMPONENT_EDITOR, NULL);
gimp_component_editor_set_preview_size (editor, preview_size);
gimp_editor_create_menu (GIMP_EDITOR (editor),
menu_factory, "<Channels>", editor);
return GTK_WIDGET (editor);
}
void
gimp_component_editor_set_preview_size (GimpComponentEditor *editor,
gint preview_size)
{
GtkWidget *tree_widget;
GtkIconSize icon_size;
GtkTreeIter iter;
gboolean iter_valid;
g_return_if_fail (GIMP_IS_COMPONENT_EDITOR (editor));
g_return_if_fail (preview_size > 0 &&
preview_size <= GIMP_VIEWABLE_MAX_PREVIEW_SIZE);
tree_widget = GTK_WIDGET (editor->view);
icon_size = gimp_get_icon_size (tree_widget,
GIMP_STOCK_VISIBLE,
GTK_ICON_SIZE_BUTTON,
preview_size -
2 * tree_widget->style->xthickness,
preview_size -
2 * tree_widget->style->ythickness);
g_object_set (editor->eye_cell,
"stock-size", icon_size,
NULL);
for (iter_valid = gtk_tree_model_get_iter_first (editor->model, &iter);
iter_valid;
iter_valid = gtk_tree_model_iter_next (editor->model, &iter))
{
GimpPreviewRenderer *renderer;
gtk_tree_model_get (editor->model, &iter,
COLUMN_RENDERER, &renderer,
-1);
gimp_preview_renderer_set_size (renderer, preview_size, 1);
g_object_unref (renderer);
}
editor->preview_size = preview_size;
gtk_tree_view_columns_autosize (editor->view);
}
static void
gimp_component_editor_create_components (GimpComponentEditor *editor)
{
GimpImage *gimage;
gint n_components = 0;
GimpChannelType components[MAX_CHANNELS];
GEnumClass *enum_class;
gint i;
gimage = GIMP_IMAGE_EDITOR (editor)->gimage;
switch (gimp_image_base_type (gimage))
{
case GIMP_RGB:
n_components = 3;
components[0] = GIMP_RED_CHANNEL;
components[1] = GIMP_GREEN_CHANNEL;
components[2] = GIMP_BLUE_CHANNEL;
break;
case GIMP_GRAY:
n_components = 1;
components[0] = GIMP_GRAY_CHANNEL;
break;
case GIMP_INDEXED:
n_components = 1;
components[0] = GIMP_INDEXED_CHANNEL;
break;
}
if (gimp_image_has_alpha (gimage))
components[n_components++] = GIMP_ALPHA_CHANNEL;
enum_class = g_type_class_ref (GIMP_TYPE_CHANNEL_TYPE);
for (i = 0; i < n_components; i++)
{
GimpPreviewRenderer *renderer;
gboolean visible;
GEnumValue *enum_value;
GtkTreeIter iter;
visible = gimp_image_get_component_visible (gimage, components[i]);
renderer = gimp_preview_renderer_new (G_TYPE_FROM_INSTANCE (gimage),
editor->preview_size, 1, FALSE);
gimp_preview_renderer_set_viewable (renderer, GIMP_VIEWABLE (gimage));
gimp_preview_renderer_remove_idle (renderer);
GIMP_PREVIEW_RENDERER_IMAGE (renderer)->channel = components[i];
g_signal_connect (renderer, "update",
G_CALLBACK (gimp_component_editor_renderer_update),
editor);
enum_value = g_enum_get_value (enum_class, components[i]);
gtk_list_store_append (GTK_LIST_STORE (editor->model), &iter);
gtk_list_store_set (GTK_LIST_STORE (editor->model), &iter,
COLUMN_CHANNEL, components[i],
COLUMN_VISIBLE, visible,
COLUMN_RENDERER, renderer,
COLUMN_NAME, gettext (enum_value->value_name),
-1);
g_object_unref (renderer);
if (gimp_image_get_component_active (gimage, components[i]))
gtk_tree_selection_select_iter (editor->selection, &iter);
}
g_type_class_unref (enum_class);
}
static void
gimp_component_editor_clear_components (GimpComponentEditor *editor)
{
gtk_list_store_clear (GTK_LIST_STORE (editor->model));
}
static void
gimp_component_editor_clicked (GtkCellRendererToggle *cellrenderertoggle,
gchar *path_str,
GdkModifierType state,
GimpComponentEditor *editor)
{
GtkTreePath *path;
GtkTreeIter iter;
path = gtk_tree_path_new_from_string (path_str);
if (gtk_tree_model_get_iter (editor->model, &iter, path))
{
GimpImage *gimage;
GimpChannelType channel;
gboolean active;
gimage = GIMP_IMAGE_EDITOR (editor)->gimage;
gtk_tree_model_get (editor->model, &iter,
COLUMN_CHANNEL, &channel,
-1);
g_object_get (cellrenderertoggle,
"active", &active,
NULL);
gimp_image_set_component_visible (gimage, channel, !active);
gimp_image_flush (gimage);
}
gtk_tree_path_free (path);
}
static gboolean
gimp_component_editor_select (GtkTreeSelection *selection,
GtkTreeModel *model,
GtkTreePath *path,
gboolean path_currently_selected,
gpointer data)
{
GimpComponentEditor *editor;
GtkTreeIter iter;
GimpChannelType channel;
gboolean active;
editor = GIMP_COMPONENT_EDITOR (data);
gtk_tree_model_get_iter (editor->model, &iter, path);
gtk_tree_model_get (editor->model, &iter,
COLUMN_CHANNEL, &channel,
-1);
active = gimp_image_get_component_active (GIMP_IMAGE_EDITOR (editor)->gimage,
channel);
return active != path_currently_selected;
}
static gboolean
gimp_component_editor_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpComponentEditor *editor)
{
GtkTreeViewColumn *column;
GtkTreePath *path;
editor->clicked_component = -1;
if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
bevent->x,
bevent->y,
&path, &column, NULL, NULL))
{
GtkTreeIter iter;
GimpChannelType channel;
gboolean active;
active = gtk_tree_selection_path_is_selected (editor->selection, path);
gtk_tree_model_get_iter (editor->model, &iter, path);
gtk_tree_path_free (path);
gtk_tree_model_get (editor->model, &iter,
COLUMN_CHANNEL, &channel,
-1);
editor->clicked_component = channel;
switch (bevent->button)
{
case 1:
if (column != editor->eye_column &&
bevent->type == GDK_BUTTON_PRESS)
gimp_image_set_component_active (GIMP_IMAGE_EDITOR (editor)->gimage,
channel, ! active);
break;
case 2:
break;
case 3:
gimp_item_factory_popup_with_data (GIMP_EDITOR (editor)->item_factory,
GIMP_EDITOR (editor)->item_factory_data,
NULL, NULL, NULL);
break;
default:
break;
}
}
return FALSE;
}
static gboolean
gimp_component_editor_get_iter (GimpComponentEditor *editor,
GimpChannelType channel,
GtkTreeIter *iter)
{
gint index;
index = gimp_image_get_component_index (GIMP_IMAGE_EDITOR (editor)->gimage,
channel);
if (index != -1)
return gtk_tree_model_iter_nth_child (editor->model, iter, NULL, index);
return FALSE;
}
static void
gimp_component_editor_renderer_update (GimpPreviewRenderer *renderer,
GimpComponentEditor *editor)
{
GtkTreeIter iter;
gint index;
index = gimp_image_get_component_index (GIMP_IMAGE (renderer->viewable),
GIMP_PREVIEW_RENDERER_IMAGE (renderer)->channel);
if (gtk_tree_model_iter_nth_child (editor->model, &iter, NULL, index))
{
GtkTreePath *path;
path = gtk_tree_model_get_path (editor->model, &iter);
gtk_tree_model_row_changed (editor->model, path, &iter);
gtk_tree_path_free (path);
}
}
static void
gimp_component_editor_mode_changed (GimpImage *gimage,
GimpComponentEditor *editor)
{
gimp_component_editor_clear_components (editor);
gimp_component_editor_create_components (editor);
}
static void
gimp_component_editor_alpha_changed (GimpImage *gimage,
GimpComponentEditor *editor)
{
gimp_component_editor_clear_components (editor);
gimp_component_editor_create_components (editor);
}
static void
gimp_component_editor_visibility_changed (GimpImage *gimage,
GimpChannelType channel,
GimpComponentEditor *editor)
{
GtkTreeIter iter;
if (gimp_component_editor_get_iter (editor, channel, &iter))
{
gboolean visible;
visible = gimp_image_get_component_visible (gimage, channel);
gtk_list_store_set (GTK_LIST_STORE (editor->model), &iter,
COLUMN_VISIBLE, visible,
-1);
}
}
static void
gimp_component_editor_active_changed (GimpImage *gimage,
GimpChannelType channel,
GimpComponentEditor *editor)
{
GtkTreeIter iter;
if (gimp_component_editor_get_iter (editor, channel, &iter))
{
gboolean active;
active = gimp_image_get_component_active (gimage, channel);
if (gtk_tree_selection_iter_is_selected (editor->selection, &iter) !=
active)
{
if (active)
gtk_tree_selection_select_iter (editor->selection, &iter);
else
gtk_tree_selection_unselect_iter (editor->selection, &iter);
}
}
}
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