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callisto/bookworm
gimp/app/widgets/gimplayertreeview.c
woob b419aa5d10 app: expand functionality of merge-down button 
Adds a number of modifier keys to the layer dockable's new "Merge Down"
button to access further functions, and adds among them a new action to
merge visible layers using the dialog's last values, akin to those
accompanying the New Layer and Add Layer Mask dialogs.

Modifier keys are bound as follows:
  Shift -> Merge layer group
  Ctrl -> Merge visible layers
  Ctrl + Shift -> Merge visible layers from last used values

The Merge Down button is kept sensitive even when the current layer
can't be merged down to allow access to these functions

(cherry picked from commit a11ada4ce2)
2020-01-06 18:39:30 +01:00

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimplayertreeview.c
* Copyright (C) 2001-2009 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 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 <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpchannel.h"
#include "core/gimpcontainer.h"
#include "core/gimpimage-undo.h"
#include "core/gimpimage.h"
#include "core/gimpitemundo.h"
#include "core/gimplayer.h"
#include "core/gimplayer-floating-selection.h"
#include "core/gimplayer-new.h"
#include "core/gimplayermask.h"
#include "core/gimptreehandler.h"
#include "text/gimptextlayer.h"
#include "file/file-open.h"
#include "gimpactiongroup.h"
#include "gimpcellrendererviewable.h"
#include "gimpcontainertreestore.h"
#include "gimpcontainerview.h"
#include "gimpdnd.h"
#include "gimphelp-ids.h"
#include "gimphighlightablebutton.h"
#include "gimplayermodebox.h"
#include "gimplayertreeview.h"
#include "gimpspinscale.h"
#include "gimpuimanager.h"
#include "gimpviewrenderer.h"
#include "gimpwidgets-utils.h"
#include "gimp-intl.h"
struct _GimpLayerTreeViewPrivate
{
GtkWidget *layer_mode_box;
GtkAdjustment *opacity_adjustment;
GtkWidget *lock_alpha_toggle;
GtkWidget *anchor_button;
gint model_column_mask;
gint model_column_mask_visible;
GtkCellRenderer *mask_cell;
PangoAttrList *italic_attrs;
PangoAttrList *bold_attrs;
GimpTreeHandler *mode_changed_handler;
GimpTreeHandler *opacity_changed_handler;
GimpTreeHandler *lock_alpha_changed_handler;
GimpTreeHandler *mask_changed_handler;
GimpTreeHandler *alpha_changed_handler;
};
static void gimp_layer_tree_view_view_iface_init (GimpContainerViewInterface *iface);
static void gimp_layer_tree_view_constructed (GObject *object);
static void gimp_layer_tree_view_finalize (GObject *object);
static void gimp_layer_tree_view_set_container (GimpContainerView *view,
GimpContainer *container);
static void gimp_layer_tree_view_set_context (GimpContainerView *view,
GimpContext *context);
static gpointer gimp_layer_tree_view_insert_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer parent_insert_data,
gint index);
static gboolean gimp_layer_tree_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data);
static void gimp_layer_tree_view_set_view_size (GimpContainerView *view);
static gboolean gimp_layer_tree_view_drop_possible (GimpContainerTreeView *view,
GimpDndType src_type,
GimpViewable *src_viewable,
GimpViewable *dest_viewable,
GtkTreePath *drop_path,
GtkTreeViewDropPosition drop_pos,
GtkTreeViewDropPosition *return_drop_pos,
GdkDragAction *return_drag_action);
static void gimp_layer_tree_view_drop_color (GimpContainerTreeView *view,
const GimpRGB *color,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static void gimp_layer_tree_view_drop_uri_list (GimpContainerTreeView *view,
GList *uri_list,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static void gimp_layer_tree_view_drop_component (GimpContainerTreeView *tree_view,
GimpImage *image,
GimpChannelType component,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static void gimp_layer_tree_view_drop_pixbuf (GimpContainerTreeView *tree_view,
GdkPixbuf *pixbuf,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static void gimp_layer_tree_view_set_image (GimpItemTreeView *view,
GimpImage *image);
static GimpItem * gimp_layer_tree_view_item_new (GimpImage *image);
static void gimp_layer_tree_view_floating_selection_changed (GimpImage *image,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_layer_mode_box_callback (GtkWidget *widget,
const GParamSpec *pspec,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_opacity_scale_changed (GtkAdjustment *adj,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_lock_alpha_button_toggled (GtkWidget *widget,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_layer_signal_handler (GimpLayer *layer,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_update_options (GimpLayerTreeView *view,
GimpLayer *layer);
static void gimp_layer_tree_view_update_menu (GimpLayerTreeView *view,
GimpLayer *layer);
static void gimp_layer_tree_view_update_highlight (GimpLayerTreeView *view);
static void gimp_layer_tree_view_mask_update (GimpLayerTreeView *view,
GtkTreeIter *iter,
GimpLayer *layer);
static void gimp_layer_tree_view_mask_changed (GimpLayer *layer,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_renderer_update (GimpViewRenderer *renderer,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_update_borders (GimpLayerTreeView *view,
GtkTreeIter *iter);
static void gimp_layer_tree_view_mask_callback (GimpLayer *mask,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_layer_clicked (GimpCellRendererViewable *cell,
const gchar *path,
GdkModifierType state,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_mask_clicked (GimpCellRendererViewable *cell,
const gchar *path,
GdkModifierType state,
GimpLayerTreeView *view);
static void gimp_layer_tree_view_alpha_update (GimpLayerTreeView *view,
GtkTreeIter *iter,
GimpLayer *layer);
static void gimp_layer_tree_view_alpha_changed (GimpLayer *layer,
GimpLayerTreeView *view);
G_DEFINE_TYPE_WITH_CODE (GimpLayerTreeView, gimp_layer_tree_view,
GIMP_TYPE_DRAWABLE_TREE_VIEW,
G_ADD_PRIVATE (GimpLayerTreeView)
G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONTAINER_VIEW,
gimp_layer_tree_view_view_iface_init))
#define parent_class gimp_layer_tree_view_parent_class
static GimpContainerViewInterface *parent_view_iface = NULL;
static void
gimp_layer_tree_view_class_init (GimpLayerTreeViewClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpContainerTreeViewClass *tree_view_class;
GimpItemTreeViewClass *item_view_class;
tree_view_class = GIMP_CONTAINER_TREE_VIEW_CLASS (klass);
item_view_class = GIMP_ITEM_TREE_VIEW_CLASS (klass);
object_class->constructed = gimp_layer_tree_view_constructed;
object_class->finalize = gimp_layer_tree_view_finalize;
tree_view_class->drop_possible = gimp_layer_tree_view_drop_possible;
tree_view_class->drop_color = gimp_layer_tree_view_drop_color;
tree_view_class->drop_uri_list = gimp_layer_tree_view_drop_uri_list;
tree_view_class->drop_component = gimp_layer_tree_view_drop_component;
tree_view_class->drop_pixbuf = gimp_layer_tree_view_drop_pixbuf;
item_view_class->item_type = GIMP_TYPE_LAYER;
item_view_class->signal_name = "active-layer-changed";
item_view_class->set_image = gimp_layer_tree_view_set_image;
item_view_class->get_container = gimp_image_get_layers;
item_view_class->get_active_item = (GimpGetItemFunc) gimp_image_get_active_layer;
item_view_class->set_active_item = (GimpSetItemFunc) gimp_image_set_active_layer;
item_view_class->add_item = (GimpAddItemFunc) gimp_image_add_layer;
item_view_class->remove_item = (GimpRemoveItemFunc) gimp_image_remove_layer;
item_view_class->new_item = gimp_layer_tree_view_item_new;
item_view_class->action_group = "layers";
item_view_class->activate_action = "layers-edit";
item_view_class->new_action = "layers-new";
item_view_class->new_default_action = "layers-new-last-values";
item_view_class->raise_action = "layers-raise";
item_view_class->raise_top_action = "layers-raise-to-top";
item_view_class->lower_action = "layers-lower";
item_view_class->lower_bottom_action = "layers-lower-to-bottom";
item_view_class->duplicate_action = "layers-duplicate";
item_view_class->delete_action = "layers-delete";
item_view_class->lock_content_help_id = GIMP_HELP_LAYER_LOCK_PIXELS;
item_view_class->lock_position_help_id = GIMP_HELP_LAYER_LOCK_POSITION;
}
static void
gimp_layer_tree_view_view_iface_init (GimpContainerViewInterface *iface)
{
parent_view_iface = g_type_interface_peek_parent (iface);
iface->set_container = gimp_layer_tree_view_set_container;
iface->set_context = gimp_layer_tree_view_set_context;
iface->insert_item = gimp_layer_tree_view_insert_item;
iface->select_item = gimp_layer_tree_view_select_item;
iface->set_view_size = gimp_layer_tree_view_set_view_size;
iface->model_is_tree = TRUE;
}
static void
gimp_layer_tree_view_init (GimpLayerTreeView *view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
GtkWidget *scale;
GtkWidget *hbox;
GtkWidget *image;
GtkIconSize icon_size;
PangoAttribute *attr;
view->priv = gimp_layer_tree_view_get_instance_private (view);
view->priv->model_column_mask =
gimp_container_tree_store_columns_add (tree_view->model_columns,
&tree_view->n_model_columns,
GIMP_TYPE_VIEW_RENDERER);
view->priv->model_column_mask_visible =
gimp_container_tree_store_columns_add (tree_view->model_columns,
&tree_view->n_model_columns,
G_TYPE_BOOLEAN);
/* Paint mode menu */
view->priv->layer_mode_box = gimp_layer_mode_box_new (GIMP_LAYER_MODE_CONTEXT_LAYER);
gimp_layer_mode_box_set_label (GIMP_LAYER_MODE_BOX (view->priv->layer_mode_box),
_("Mode"));
gimp_item_tree_view_add_options (GIMP_ITEM_TREE_VIEW (view), NULL,
view->priv->layer_mode_box);
g_signal_connect (view->priv->layer_mode_box, "notify::layer-mode",
G_CALLBACK (gimp_layer_tree_view_layer_mode_box_callback),
view);
gimp_help_set_help_data (view->priv->layer_mode_box, NULL,
GIMP_HELP_LAYER_DIALOG_PAINT_MODE_MENU);
/* Opacity scale */
view->priv->opacity_adjustment =
GTK_ADJUSTMENT (gtk_adjustment_new (100.0, 0.0, 100.0,
1.0, 10.0, 0.0));
scale = gimp_spin_scale_new (view->priv->opacity_adjustment, _("Opacity"), 1);
gimp_help_set_help_data (scale, NULL,
GIMP_HELP_LAYER_DIALOG_OPACITY_SCALE);
gimp_item_tree_view_add_options (GIMP_ITEM_TREE_VIEW (view),
NULL, scale);
g_signal_connect (view->priv->opacity_adjustment, "value-changed",
G_CALLBACK (gimp_layer_tree_view_opacity_scale_changed),
view);
/* Lock alpha toggle */
hbox = gimp_item_tree_view_get_lock_box (GIMP_ITEM_TREE_VIEW (view));
view->priv->lock_alpha_toggle = gtk_toggle_button_new ();
gtk_box_pack_start (GTK_BOX (hbox), view->priv->lock_alpha_toggle,
FALSE, FALSE, 0);
gtk_widget_show (view->priv->lock_alpha_toggle);
g_signal_connect (view->priv->lock_alpha_toggle, "toggled",
G_CALLBACK (gimp_layer_tree_view_lock_alpha_button_toggled),
view);
gimp_help_set_help_data (view->priv->lock_alpha_toggle,
_("Lock alpha channel"),
GIMP_HELP_LAYER_LOCK_ALPHA);
gtk_widget_style_get (GTK_WIDGET (view),
"button-icon-size", &icon_size,
NULL);
image = gtk_image_new_from_icon_name (GIMP_ICON_TRANSPARENCY, icon_size);
gtk_container_add (GTK_CONTAINER (view->priv->lock_alpha_toggle), image);
gtk_widget_show (image);
view->priv->italic_attrs = pango_attr_list_new ();
attr = pango_attr_style_new (PANGO_STYLE_ITALIC);
attr->start_index = 0;
attr->end_index = -1;
pango_attr_list_insert (view->priv->italic_attrs, attr);
view->priv->bold_attrs = pango_attr_list_new ();
attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
attr->start_index = 0;
attr->end_index = -1;
pango_attr_list_insert (view->priv->bold_attrs, attr);
}
static void
gimp_layer_tree_view_constructed (GObject *object)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (object);
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (object);
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (object);
GtkWidget *button;
G_OBJECT_CLASS (parent_class)->constructed (object);
gimp_highlightable_button_set_highlight_color (
GIMP_HIGHLIGHTABLE_BUTTON (gimp_item_tree_view_get_new_button (item_view)),
GIMP_HIGHLIGHTABLE_BUTTON_COLOR_AFFIRMATIVE);
gimp_highlightable_button_set_highlight_color (
GIMP_HIGHLIGHTABLE_BUTTON (gimp_item_tree_view_get_delete_button (item_view)),
GIMP_HIGHLIGHTABLE_BUTTON_COLOR_NEGATIVE);
layer_view->priv->mask_cell = gimp_cell_renderer_viewable_new ();
gtk_tree_view_column_pack_start (tree_view->main_column,
layer_view->priv->mask_cell,
FALSE);
gtk_tree_view_column_set_attributes (tree_view->main_column,
layer_view->priv->mask_cell,
"renderer",
layer_view->priv->model_column_mask,
"visible",
layer_view->priv->model_column_mask_visible,
NULL);
gimp_container_tree_view_add_renderer_cell (tree_view,
layer_view->priv->mask_cell);
g_signal_connect (tree_view->renderer_cell, "clicked",
G_CALLBACK (gimp_layer_tree_view_layer_clicked),
layer_view);
g_signal_connect (layer_view->priv->mask_cell, "clicked",
G_CALLBACK (gimp_layer_tree_view_mask_clicked),
layer_view);
gimp_dnd_component_dest_add (GTK_WIDGET (tree_view->view),
NULL, tree_view);
gimp_dnd_viewable_dest_add (GTK_WIDGET (tree_view->view), GIMP_TYPE_CHANNEL,
NULL, tree_view);
gimp_dnd_viewable_dest_add (GTK_WIDGET (tree_view->view), GIMP_TYPE_LAYER_MASK,
NULL, tree_view);
gimp_dnd_uri_list_dest_add (GTK_WIDGET (tree_view->view),
NULL, tree_view);
gimp_dnd_pixbuf_dest_add (GTK_WIDGET (tree_view->view),
NULL, tree_view);
button = gimp_editor_add_action_button (GIMP_EDITOR (layer_view), "layers",
"layers-new-group", NULL);
gtk_box_reorder_child (gimp_editor_get_button_box (GIMP_EDITOR (layer_view)),
button, 1);
button = gimp_editor_add_action_button (GIMP_EDITOR (layer_view), "layers",
"layers-anchor", NULL);
layer_view->priv->anchor_button = button;
gimp_highlightable_button_set_highlight_color (
GIMP_HIGHLIGHTABLE_BUTTON (button),
GIMP_HIGHLIGHTABLE_BUTTON_COLOR_AFFIRMATIVE);
gimp_container_view_enable_dnd (GIMP_CONTAINER_VIEW (layer_view),
GTK_BUTTON (button),
GIMP_TYPE_LAYER);
gtk_box_reorder_child (gimp_editor_get_button_box (GIMP_EDITOR (layer_view)),
button, 5);
button = gimp_editor_add_action_button (GIMP_EDITOR (layer_view), "layers",
"layers-merge-down-button",
"layers-merge-group",
GDK_SHIFT_MASK,
"layers-merge-layers",
GDK_CONTROL_MASK,
"layers-merge-layers-last-values",
GDK_CONTROL_MASK |
GDK_SHIFT_MASK,
NULL);
gimp_container_view_enable_dnd (GIMP_CONTAINER_VIEW (layer_view),
GTK_BUTTON (button),
GIMP_TYPE_LAYER);
gtk_box_reorder_child (gimp_editor_get_button_box (GIMP_EDITOR (layer_view)),
button, 6);
button = gimp_editor_add_action_button (GIMP_EDITOR (layer_view), "layers",
"layers-mask-add-button",
"layers-mask-add-last-values",
gimp_get_extend_selection_mask (),
"layers-mask-delete",
gimp_get_modify_selection_mask (),
"layers-mask-apply",
gimp_get_extend_selection_mask () |
gimp_get_modify_selection_mask (),
NULL);
gimp_container_view_enable_dnd (GIMP_CONTAINER_VIEW (layer_view),
GTK_BUTTON (button),
GIMP_TYPE_LAYER);
gtk_box_reorder_child (gimp_editor_get_button_box (GIMP_EDITOR (layer_view)),
button, 7);
}
static void
gimp_layer_tree_view_finalize (GObject *object)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (object);
if (layer_view->priv->italic_attrs)
{
pango_attr_list_unref (layer_view->priv->italic_attrs);
layer_view->priv->italic_attrs = NULL;
}
if (layer_view->priv->bold_attrs)
{
pango_attr_list_unref (layer_view->priv->bold_attrs);
layer_view->priv->bold_attrs = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/* GimpContainerView methods */
static void
gimp_layer_tree_view_set_container (GimpContainerView *view,
GimpContainer *container)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
GimpContainer *old_container;
old_container = gimp_container_view_get_container (view);
if (old_container)
{
gimp_tree_handler_disconnect (layer_view->priv->mode_changed_handler);
layer_view->priv->mode_changed_handler = NULL;
gimp_tree_handler_disconnect (layer_view->priv->opacity_changed_handler);
layer_view->priv->opacity_changed_handler = NULL;
gimp_tree_handler_disconnect (layer_view->priv->lock_alpha_changed_handler);
layer_view->priv->lock_alpha_changed_handler = NULL;
gimp_tree_handler_disconnect (layer_view->priv->mask_changed_handler);
layer_view->priv->mask_changed_handler = NULL;
gimp_tree_handler_disconnect (layer_view->priv->alpha_changed_handler);
layer_view->priv->alpha_changed_handler = NULL;
}
parent_view_iface->set_container (view, container);
if (container)
{
layer_view->priv->mode_changed_handler =
gimp_tree_handler_connect (container, "mode-changed",
G_CALLBACK (gimp_layer_tree_view_layer_signal_handler),
view);
layer_view->priv->opacity_changed_handler =
gimp_tree_handler_connect (container, "opacity-changed",
G_CALLBACK (gimp_layer_tree_view_layer_signal_handler),
view);
layer_view->priv->lock_alpha_changed_handler =
gimp_tree_handler_connect (container, "lock-alpha-changed",
G_CALLBACK (gimp_layer_tree_view_layer_signal_handler),
view);
layer_view->priv->mask_changed_handler =
gimp_tree_handler_connect (container, "mask-changed",
G_CALLBACK (gimp_layer_tree_view_mask_changed),
view);
layer_view->priv->alpha_changed_handler =
gimp_tree_handler_connect (container, "alpha-changed",
G_CALLBACK (gimp_layer_tree_view_alpha_changed),
view);
}
}
typedef struct
{
gint mask_column;
GimpContext *context;
} SetContextForeachData;
static gboolean
gimp_layer_tree_view_set_context_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SetContextForeachData *context_data = data;
GimpViewRenderer *renderer;
gtk_tree_model_get (model, iter,
context_data->mask_column, &renderer,
-1);
if (renderer)
{
gimp_view_renderer_set_context (renderer, context_data->context);
g_object_unref (renderer);
}
return FALSE;
}
static void
gimp_layer_tree_view_set_context (GimpContainerView *view,
GimpContext *context)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
parent_view_iface->set_context (view, context);
if (tree_view->model)
{
SetContextForeachData context_data = { layer_view->priv->model_column_mask,
context };
gtk_tree_model_foreach (tree_view->model,
gimp_layer_tree_view_set_context_foreach,
&context_data);
}
}
static gpointer
gimp_layer_tree_view_insert_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer parent_insert_data,
gint index)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
GimpLayer *layer;
GtkTreeIter *iter;
iter = parent_view_iface->insert_item (view, viewable,
parent_insert_data, index);
layer = GIMP_LAYER (viewable);
if (! gimp_drawable_has_alpha (GIMP_DRAWABLE (layer)))
gimp_layer_tree_view_alpha_update (layer_view, iter, layer);
gimp_layer_tree_view_mask_update (layer_view, iter, layer);
return iter;
}
static gboolean
gimp_layer_tree_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
gboolean success;
success = parent_view_iface->select_item (view, item, insert_data);
if (item)
{
if (success)
{
gimp_layer_tree_view_update_borders (layer_view,
(GtkTreeIter *) insert_data);
gimp_layer_tree_view_update_options (layer_view, GIMP_LAYER (item));
gimp_layer_tree_view_update_menu (layer_view, GIMP_LAYER (item));
}
}
if (! success)
{
GimpEditor *editor = GIMP_EDITOR (view);
/* currently, select_item() only ever fails when there is a floating
* selection, which can be committed/canceled through the editor buttons.
*/
gimp_widget_blink (GTK_WIDGET (gimp_editor_get_button_box (editor)));
}
return success;
}
typedef struct
{
gint mask_column;
gint view_size;
gint border_width;
} SetSizeForeachData;
static gboolean
gimp_layer_tree_view_set_view_size_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
SetSizeForeachData *size_data = data;
GimpViewRenderer *renderer;
gtk_tree_model_get (model, iter,
size_data->mask_column, &renderer,
-1);
if (renderer)
{
gimp_view_renderer_set_size (renderer,
size_data->view_size,
size_data->border_width);
g_object_unref (renderer);
}
return FALSE;
}
static void
gimp_layer_tree_view_set_view_size (GimpContainerView *view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
if (tree_view->model)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
SetSizeForeachData size_data;
size_data.mask_column = layer_view->priv->model_column_mask;
size_data.view_size =
gimp_container_view_get_view_size (view, &size_data.border_width);
gtk_tree_model_foreach (tree_view->model,
gimp_layer_tree_view_set_view_size_foreach,
&size_data);
}
parent_view_iface->set_view_size (view);
}
/* GimpContainerTreeView methods */
static gboolean
gimp_layer_tree_view_drop_possible (GimpContainerTreeView *tree_view,
GimpDndType src_type,
GimpViewable *src_viewable,
GimpViewable *dest_viewable,
GtkTreePath *drop_path,
GtkTreeViewDropPosition drop_pos,
GtkTreeViewDropPosition *return_drop_pos,
GdkDragAction *return_drag_action)
{
/* If we are dropping a new layer, check if the destination image
* has a floating selection.
*/
if (src_type == GIMP_DND_TYPE_URI_LIST ||
src_type == GIMP_DND_TYPE_TEXT_PLAIN ||
src_type == GIMP_DND_TYPE_NETSCAPE_URL ||
src_type == GIMP_DND_TYPE_COMPONENT ||
src_type == GIMP_DND_TYPE_PIXBUF ||
GIMP_IS_DRAWABLE (src_viewable))
{
GimpImage *dest_image = gimp_item_tree_view_get_image (GIMP_ITEM_TREE_VIEW (tree_view));
if (gimp_image_get_floating_selection (dest_image))
return FALSE;
}
return GIMP_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_possible (tree_view,
src_type,
src_viewable,
dest_viewable,
drop_path,
drop_pos,
return_drop_pos,
return_drag_action);
}
static void
gimp_layer_tree_view_drop_color (GimpContainerTreeView *view,
const GimpRGB *color,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
if (gimp_item_is_text_layer (GIMP_ITEM (dest_viewable)))
{
gimp_text_layer_set (GIMP_TEXT_LAYER (dest_viewable), NULL,
"color", color,
NULL);
gimp_image_flush (gimp_item_tree_view_get_image (GIMP_ITEM_TREE_VIEW (view)));
return;
}
GIMP_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_color (view, color,
dest_viewable,
drop_pos);
}
static void
gimp_layer_tree_view_drop_uri_list (GimpContainerTreeView *view,
GList *uri_list,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (view);
GimpContainerView *cont_view = GIMP_CONTAINER_VIEW (view);
GimpImage *image = gimp_item_tree_view_get_image (item_view);
GimpLayer *parent;
gint index;
GList *list;
index = gimp_item_tree_view_get_drop_index (item_view, dest_viewable,
drop_pos,
(GimpViewable **) &parent);
g_object_ref (image);
for (list = uri_list; list; list = g_list_next (list))
{
const gchar *uri = list->data;
GFile *file = g_file_new_for_uri (uri);
GList *new_layers;
GimpPDBStatusType status;
GError *error = NULL;
new_layers = file_open_layers (image->gimp,
gimp_container_view_get_context (cont_view),
NULL,
image, FALSE,
file, GIMP_RUN_INTERACTIVE, NULL,
&status, &error);
if (new_layers)
{
gimp_image_add_layers (image, new_layers, parent, index,
0, 0,
gimp_image_get_width (image),
gimp_image_get_height (image),
_("Drop layers"));
index += g_list_length (new_layers);
g_list_free (new_layers);
}
else if (status != GIMP_PDB_CANCEL)
{
gimp_message (image->gimp, G_OBJECT (view), GIMP_MESSAGE_ERROR,
_("Opening '%s' failed:\n\n%s"),
gimp_file_get_utf8_name (file), error->message);
g_clear_error (&error);
}
g_object_unref (file);
}
gimp_image_flush (image);
g_object_unref (image);
}
static void
gimp_layer_tree_view_drop_component (GimpContainerTreeView *tree_view,
GimpImage *src_image,
GimpChannelType component,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (tree_view);
GimpImage *image = gimp_item_tree_view_get_image (item_view);
GimpChannel *channel;
GimpItem *new_item;
GimpLayer *parent;
gint index;
const gchar *desc;
index = gimp_item_tree_view_get_drop_index (item_view, dest_viewable,
drop_pos,
(GimpViewable **) &parent);
channel = gimp_channel_new_from_component (src_image, component, NULL, NULL);
new_item = gimp_item_convert (GIMP_ITEM (channel), image,
GIMP_TYPE_LAYER);
g_object_unref (channel);
gimp_enum_get_value (GIMP_TYPE_CHANNEL_TYPE, component,
NULL, NULL, &desc, NULL);
gimp_object_take_name (GIMP_OBJECT (new_item),
g_strdup_printf (_("%s Channel Copy"), desc));
gimp_image_add_layer (image, GIMP_LAYER (new_item), parent, index, TRUE);
gimp_image_flush (image);
}
static void
gimp_layer_tree_view_drop_pixbuf (GimpContainerTreeView *tree_view,
GdkPixbuf *pixbuf,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (tree_view);
GimpImage *image = gimp_item_tree_view_get_image (item_view);
GimpLayer *new_layer;
GimpLayer *parent;
gint index;
index = gimp_item_tree_view_get_drop_index (item_view, dest_viewable,
drop_pos,
(GimpViewable **) &parent);
new_layer =
gimp_layer_new_from_pixbuf (pixbuf, image,
gimp_image_get_layer_format (image, TRUE),
_("Dropped Buffer"),
GIMP_OPACITY_OPAQUE,
gimp_image_get_default_new_layer_mode (image));
gimp_image_add_layer (image, new_layer, parent, index, TRUE);
gimp_image_flush (image);
}
/* GimpItemTreeView methods */
static void
gimp_layer_tree_view_set_image (GimpItemTreeView *view,
GimpImage *image)
{
GimpLayerTreeView *layer_view = GIMP_LAYER_TREE_VIEW (view);
if (gimp_item_tree_view_get_image (view))
{
g_signal_handlers_disconnect_by_func (gimp_item_tree_view_get_image (view),
gimp_layer_tree_view_floating_selection_changed,
view);
}
GIMP_ITEM_TREE_VIEW_CLASS (parent_class)->set_image (view, image);
if (gimp_item_tree_view_get_image (view))
{
g_signal_connect (gimp_item_tree_view_get_image (view),
"floating-selection-changed",
G_CALLBACK (gimp_layer_tree_view_floating_selection_changed),
view);
/* call gimp_layer_tree_view_floating_selection_changed() now, to update
* the floating selection's row attributes.
*/
gimp_layer_tree_view_floating_selection_changed (
gimp_item_tree_view_get_image (view),
layer_view);
}
gimp_layer_tree_view_update_highlight (layer_view);
}
static GimpItem *
gimp_layer_tree_view_item_new (GimpImage *image)
{
GimpLayer *new_layer;
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE,
_("New Layer"));
new_layer = gimp_layer_new (image,
gimp_image_get_width (image),
gimp_image_get_height (image),
gimp_image_get_layer_format (image, TRUE),
NULL,
GIMP_OPACITY_OPAQUE,
gimp_image_get_default_new_layer_mode (image));
gimp_image_add_layer (image, new_layer,
GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE);
gimp_image_undo_group_end (image);
return GIMP_ITEM (new_layer);
}
/* callbacks */
static void
gimp_layer_tree_view_floating_selection_changed (GimpImage *image,
GimpLayerTreeView *layer_view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GimpLayer *floating_sel;
GtkTreeIter *iter;
floating_sel = gimp_image_get_floating_selection (image);
if (floating_sel)
{
iter = gimp_container_view_lookup (view, (GimpViewable *) floating_sel);
if (iter)
gtk_tree_store_set (GTK_TREE_STORE (tree_view->model), iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_NAME_ATTRIBUTES,
layer_view->priv->italic_attrs,
-1);
}
else
{
GList *all_layers;
GList *list;
all_layers = gimp_image_get_layer_list (image);
for (list = all_layers; list; list = g_list_next (list))
{
GimpDrawable *drawable = list->data;
iter = gimp_container_view_lookup (view, (GimpViewable *) drawable);
if (iter)
gtk_tree_store_set (GTK_TREE_STORE (tree_view->model), iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_NAME_ATTRIBUTES,
gimp_drawable_has_alpha (drawable) ?
NULL : layer_view->priv->bold_attrs,
-1);
}
g_list_free (all_layers);
}
gimp_layer_tree_view_update_highlight (layer_view);
}
/* Paint Mode, Opacity and Lock alpha callbacks */
#define BLOCK() \
g_signal_handlers_block_by_func (layer, \
gimp_layer_tree_view_layer_signal_handler, view)
#define UNBLOCK() \
g_signal_handlers_unblock_by_func (layer, \
gimp_layer_tree_view_layer_signal_handler, view)
static void
gimp_layer_tree_view_layer_mode_box_callback (GtkWidget *widget,
const GParamSpec *pspec,
GimpLayerTreeView *view)
{
GimpImage *image;
GimpLayer *layer = NULL;
image = gimp_item_tree_view_get_image (GIMP_ITEM_TREE_VIEW (view));
if (image)
layer = (GimpLayer *)
GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (image);
if (layer)
{
GimpLayerMode mode =
gimp_layer_mode_box_get_mode (GIMP_LAYER_MODE_BOX (widget));
if (gimp_layer_get_mode (layer) != mode)
{
GimpUndo *undo;
gboolean push_undo = TRUE;
/* compress layer mode undos */
undo = gimp_image_undo_can_compress (image, GIMP_TYPE_ITEM_UNDO,
GIMP_UNDO_LAYER_MODE);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (layer))
push_undo = FALSE;
BLOCK();
gimp_layer_set_mode (layer, (GimpLayerMode) mode, push_undo);
UNBLOCK();
gimp_image_flush (image);
if (! push_undo)
gimp_undo_refresh_preview (undo, gimp_container_view_get_context (GIMP_CONTAINER_VIEW (view)));
}
}
}
static void
gimp_layer_tree_view_lock_alpha_button_toggled (GtkWidget *widget,
GimpLayerTreeView *view)
{
GimpImage *image;
GimpLayer *layer;
image = gimp_item_tree_view_get_image (GIMP_ITEM_TREE_VIEW (view));
layer = (GimpLayer *)
GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (image);
if (layer)
{
gboolean lock_alpha;
lock_alpha = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget));
if (gimp_layer_get_lock_alpha (layer) != lock_alpha)
{
GimpUndo *undo;
gboolean push_undo = TRUE;
/* compress lock alpha undos */
undo = gimp_image_undo_can_compress (image, GIMP_TYPE_ITEM_UNDO,
GIMP_UNDO_LAYER_LOCK_ALPHA);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (layer))
push_undo = FALSE;
BLOCK();
gimp_layer_set_lock_alpha (layer, lock_alpha, push_undo);
UNBLOCK();
gimp_image_flush (image);
}
}
}
static void
gimp_layer_tree_view_opacity_scale_changed (GtkAdjustment *adjustment,
GimpLayerTreeView *view)
{
GimpImage *image;
GimpLayer *layer;
image = gimp_item_tree_view_get_image (GIMP_ITEM_TREE_VIEW (view));
layer = (GimpLayer *)
GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (image);
if (layer)
{
gdouble opacity = gtk_adjustment_get_value (adjustment) / 100.0;
if (gimp_layer_get_opacity (layer) != opacity)
{
GimpUndo *undo;
gboolean push_undo = TRUE;
/* compress opacity undos */
undo = gimp_image_undo_can_compress (image, GIMP_TYPE_ITEM_UNDO,
GIMP_UNDO_LAYER_OPACITY);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (layer))
push_undo = FALSE;
BLOCK();
gimp_layer_set_opacity (layer, opacity, push_undo);
UNBLOCK();
gimp_image_flush (image);
if (! push_undo)
gimp_undo_refresh_preview (undo, gimp_container_view_get_context (GIMP_CONTAINER_VIEW (view)));
}
}
}
#undef BLOCK
#undef UNBLOCK
static void
gimp_layer_tree_view_layer_signal_handler (GimpLayer *layer,
GimpLayerTreeView *view)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (view);
GimpLayer *active_layer;
active_layer = (GimpLayer *)
GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (gimp_item_tree_view_get_image (item_view));
if (active_layer == layer)
gimp_layer_tree_view_update_options (view, layer);
}
#define BLOCK(object,function) \
g_signal_handlers_block_by_func ((object), (function), view)
#define UNBLOCK(object,function) \
g_signal_handlers_unblock_by_func ((object), (function), view)
static void
gimp_layer_tree_view_update_options (GimpLayerTreeView *view,
GimpLayer *layer)
{
BLOCK (view->priv->layer_mode_box,
gimp_layer_tree_view_layer_mode_box_callback);
if (gimp_viewable_get_children (GIMP_VIEWABLE (layer)) == NULL)
{
gimp_layer_mode_box_set_context (GIMP_LAYER_MODE_BOX (view->priv->layer_mode_box),
GIMP_LAYER_MODE_CONTEXT_LAYER);
}
else
{
gimp_layer_mode_box_set_context (GIMP_LAYER_MODE_BOX (view->priv->layer_mode_box),
GIMP_LAYER_MODE_CONTEXT_GROUP);
}
gimp_layer_mode_box_set_mode (GIMP_LAYER_MODE_BOX (view->priv->layer_mode_box),
gimp_layer_get_mode (layer));
UNBLOCK (view->priv->layer_mode_box,
gimp_layer_tree_view_layer_mode_box_callback);
if (gimp_layer_get_lock_alpha (layer) !=
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (view->priv->lock_alpha_toggle)))
{
BLOCK (view->priv->lock_alpha_toggle,
gimp_layer_tree_view_lock_alpha_button_toggled);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (view->priv->lock_alpha_toggle),
gimp_layer_get_lock_alpha (layer));
UNBLOCK (view->priv->lock_alpha_toggle,
gimp_layer_tree_view_lock_alpha_button_toggled);
}
gtk_widget_set_sensitive (view->priv->lock_alpha_toggle,
gimp_layer_can_lock_alpha (layer));
if (gimp_layer_get_opacity (layer) * 100.0 !=
gtk_adjustment_get_value (view->priv->opacity_adjustment))
{
BLOCK (view->priv->opacity_adjustment,
gimp_layer_tree_view_opacity_scale_changed);
gtk_adjustment_set_value (view->priv->opacity_adjustment,
gimp_layer_get_opacity (layer) * 100.0);
UNBLOCK (view->priv->opacity_adjustment,
gimp_layer_tree_view_opacity_scale_changed);
}
}
#undef BLOCK
#undef UNBLOCK
static void
gimp_layer_tree_view_update_menu (GimpLayerTreeView *layer_view,
GimpLayer *layer)
{
GimpUIManager *ui_manager = gimp_editor_get_ui_manager (GIMP_EDITOR (layer_view));
GimpActionGroup *group;
GimpLayerMask *mask;
group = gimp_ui_manager_get_action_group (ui_manager, "layers");
mask = gimp_layer_get_mask (layer);
gimp_action_group_set_action_active (group, "layers-mask-show",
mask &&
gimp_layer_get_show_mask (layer));
gimp_action_group_set_action_active (group, "layers-mask-disable",
mask &&
! gimp_layer_get_apply_mask (layer));
gimp_action_group_set_action_active (group, "layers-mask-edit",
mask &&
gimp_layer_get_edit_mask (layer));
}
static void
gimp_layer_tree_view_update_highlight (GimpLayerTreeView *layer_view)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (layer_view);
GimpImage *image = gimp_item_tree_view_get_image (item_view);
GimpLayer *floating_sel = NULL;
if (image)
floating_sel = gimp_image_get_floating_selection (image);
gimp_highlightable_button_set_highlight (
GIMP_HIGHLIGHTABLE_BUTTON (gimp_item_tree_view_get_new_button (item_view)),
floating_sel != NULL &&
! GIMP_IS_CHANNEL (gimp_layer_get_floating_sel_drawable (floating_sel)));
gimp_highlightable_button_set_highlight (
GIMP_HIGHLIGHTABLE_BUTTON (gimp_item_tree_view_get_delete_button (item_view)),
floating_sel != NULL);
gimp_highlightable_button_set_highlight (
GIMP_HIGHLIGHTABLE_BUTTON (layer_view->priv->anchor_button),
floating_sel != NULL);
}
/* Layer Mask callbacks */
static void
gimp_layer_tree_view_mask_update (GimpLayerTreeView *layer_view,
GtkTreeIter *iter,
GimpLayer *layer)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GimpLayerMask *mask;
GimpViewRenderer *renderer = NULL;
gboolean mask_visible = FALSE;
mask = gimp_layer_get_mask (layer);
if (mask)
{
GClosure *closure;
gint view_size;
gint border_width;
view_size = gimp_container_view_get_view_size (view, &border_width);
mask_visible = TRUE;
renderer = gimp_view_renderer_new (gimp_container_view_get_context (view),
G_TYPE_FROM_INSTANCE (mask),
view_size, border_width,
FALSE);
gimp_view_renderer_set_viewable (renderer, GIMP_VIEWABLE (mask));
g_signal_connect (renderer, "update",
G_CALLBACK (gimp_layer_tree_view_renderer_update),
layer_view);
closure = g_cclosure_new (G_CALLBACK (gimp_layer_tree_view_mask_callback),
layer_view, NULL);
g_object_watch_closure (G_OBJECT (renderer), closure);
g_signal_connect_closure (layer, "apply-mask-changed", closure, FALSE);
g_signal_connect_closure (layer, "edit-mask-changed", closure, FALSE);
g_signal_connect_closure (layer, "show-mask-changed", closure, FALSE);
}
gtk_tree_store_set (GTK_TREE_STORE (tree_view->model), iter,
layer_view->priv->model_column_mask, renderer,
layer_view->priv->model_column_mask_visible, mask_visible,
-1);
gimp_layer_tree_view_update_borders (layer_view, iter);
if (renderer)
{
gimp_view_renderer_remove_idle (renderer);
g_object_unref (renderer);
}
}
static void
gimp_layer_tree_view_mask_changed (GimpLayer *layer,
GimpLayerTreeView *layer_view)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GtkTreeIter *iter;
iter = gimp_container_view_lookup (view, GIMP_VIEWABLE (layer));
if (iter)
gimp_layer_tree_view_mask_update (layer_view, iter, layer);
}
static void
gimp_layer_tree_view_renderer_update (GimpViewRenderer *renderer,
GimpLayerTreeView *layer_view)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GimpLayerMask *mask;
GtkTreeIter *iter;
mask = GIMP_LAYER_MASK (renderer->viewable);
iter = gimp_container_view_lookup (view, (GimpViewable *)
gimp_layer_mask_get_layer (mask));
if (iter)
{
GtkTreePath *path;
path = gtk_tree_model_get_path (tree_view->model, iter);
gtk_tree_model_row_changed (tree_view->model, path, iter);
gtk_tree_path_free (path);
}
}
static void
gimp_layer_tree_view_update_borders (GimpLayerTreeView *layer_view,
GtkTreeIter *iter)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GimpViewRenderer *layer_renderer;
GimpViewRenderer *mask_renderer;
GimpLayer *layer;
GimpLayerMask *mask = NULL;
GimpViewBorderType layer_type = GIMP_VIEW_BORDER_BLACK;
gtk_tree_model_get (tree_view->model, iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &layer_renderer,
layer_view->priv->model_column_mask, &mask_renderer,
-1);
layer = GIMP_LAYER (layer_renderer->viewable);
if (mask_renderer)
mask = GIMP_LAYER_MASK (mask_renderer->viewable);
if (! mask || (mask && ! gimp_layer_get_edit_mask (layer)))
layer_type = GIMP_VIEW_BORDER_WHITE;
gimp_view_renderer_set_border_type (layer_renderer, layer_type);
if (mask)
{
GimpViewBorderType mask_color = GIMP_VIEW_BORDER_BLACK;
if (gimp_layer_get_show_mask (layer))
{
mask_color = GIMP_VIEW_BORDER_GREEN;
}
else if (! gimp_layer_get_apply_mask (layer))
{
mask_color = GIMP_VIEW_BORDER_RED;
}
else if (gimp_layer_get_edit_mask (layer))
{
mask_color = GIMP_VIEW_BORDER_WHITE;
}
gimp_view_renderer_set_border_type (mask_renderer, mask_color);
}
if (layer_renderer)
g_object_unref (layer_renderer);
if (mask_renderer)
g_object_unref (mask_renderer);
}
static void
gimp_layer_tree_view_mask_callback (GimpLayer *layer,
GimpLayerTreeView *layer_view)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GtkTreeIter *iter;
iter = gimp_container_view_lookup (view, (GimpViewable *) layer);
gimp_layer_tree_view_update_borders (layer_view, iter);
}
static void
gimp_layer_tree_view_layer_clicked (GimpCellRendererViewable *cell,
const gchar *path_str,
GdkModifierType state,
GimpLayerTreeView *layer_view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GtkTreePath *path = gtk_tree_path_new_from_string (path_str);
GtkTreeIter iter;
if (gtk_tree_model_get_iter (tree_view->model, &iter, path) &&
! (state & GDK_MOD1_MASK))
{
GimpUIManager *ui_manager;
GimpActionGroup *group;
GimpViewRenderer *renderer;
ui_manager = gimp_editor_get_ui_manager (GIMP_EDITOR (tree_view));
group = gimp_ui_manager_get_action_group (ui_manager, "layers");
gtk_tree_model_get (tree_view->model, &iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
if (renderer)
{
GimpLayer *layer = GIMP_LAYER (renderer->viewable);
GimpLayerMask *mask = gimp_layer_get_mask (layer);
if (state & gimp_get_extend_selection_mask ())
{
if (state & gimp_get_modify_selection_mask ())
{
/* Shift-Control-click apply a layer mask */
if (mask)
gimp_ui_manager_activate_action (ui_manager, "layers",
"layers-mask-apply");
}
else
{
/* Shift-click add a layer mask with last values */
if (! mask)
gimp_ui_manager_activate_action (ui_manager, "layers",
"layers-mask-add-last-values");
}
}
else if (state & gimp_get_modify_selection_mask ())
{
/* Control-click remove a layer mask */
if (mask)
gimp_ui_manager_activate_action (ui_manager, "layers",
"layers-mask-delete");
}
else if (mask && gimp_layer_get_edit_mask (layer))
{
/* other clicks activate the layer */
if (mask)
gimp_action_group_set_action_active (group,
"layers-mask-edit", FALSE);
}
g_object_unref (renderer);
}
}
gtk_tree_path_free (path);
}
static void
gimp_layer_tree_view_mask_clicked (GimpCellRendererViewable *cell,
const gchar *path_str,
GdkModifierType state,
GimpLayerTreeView *layer_view)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (layer_view);
GtkTreePath *path;
GtkTreeIter iter;
path = gtk_tree_path_new_from_string (path_str);
if (gtk_tree_model_get_iter (tree_view->model, &iter, path))
{
GimpViewRenderer *renderer;
GimpUIManager *ui_manager;
GimpActionGroup *group;
ui_manager = gimp_editor_get_ui_manager (GIMP_EDITOR (tree_view));
group = gimp_ui_manager_get_action_group (ui_manager, "layers");
gtk_tree_model_get (tree_view->model, &iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
if (renderer)
{
GimpLayer *layer = GIMP_LAYER (renderer->viewable);
if (state & GDK_MOD1_MASK)
gimp_action_group_set_action_active (group, "layers-mask-show",
! gimp_layer_get_show_mask (layer));
else if (state & gimp_get_toggle_behavior_mask ())
gimp_action_group_set_action_active (group, "layers-mask-disable",
gimp_layer_get_apply_mask (layer));
else if (! gimp_layer_get_edit_mask (layer))
gimp_action_group_set_action_active (group,
"layers-mask-edit", TRUE);
g_object_unref (renderer);
}
}
gtk_tree_path_free (path);
}
/* GimpDrawable alpha callbacks */
static void
gimp_layer_tree_view_alpha_update (GimpLayerTreeView *view,
GtkTreeIter *iter,
GimpLayer *layer)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
gtk_tree_store_set (GTK_TREE_STORE (tree_view->model), iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_NAME_ATTRIBUTES,
gimp_drawable_has_alpha (GIMP_DRAWABLE (layer)) ?
NULL : view->priv->bold_attrs,
-1);
}
static void
gimp_layer_tree_view_alpha_changed (GimpLayer *layer,
GimpLayerTreeView *layer_view)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (layer_view);
GtkTreeIter *iter;
iter = gimp_container_view_lookup (view, (GimpViewable *) layer);
if (iter)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (view);
gimp_layer_tree_view_alpha_update (layer_view, iter, layer);
/* update button states */
if (gimp_image_get_active_layer (gimp_item_tree_view_get_image (item_view)) == layer)
gimp_container_view_select_item (GIMP_CONTAINER_VIEW (view),
GIMP_VIEWABLE (layer));
}
}
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