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gimp/app/widgets/gimplayertreeview.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimplayerlistview.c
* Copyright (C) 2001 Michael Natterer
*
* 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 "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpcontainer.h"
#include "core/gimpdrawable.h"
#include "core/gimplayer.h"
#include "core/gimpmarshal.h"
#include "display/gimpdisplay.h"
#include "gimpdnd.h"
#include "gimplayerlistview.h"
#include "gimplistitem.h"
#include "gimpwidgets-constructors.h"
#include "libgimp/gimpintl.h"
static void gimp_layer_list_view_class_init (GimpLayerListViewClass *klass);
static void gimp_layer_list_view_init (GimpLayerListView *view);
static void gimp_layer_list_view_destroy (GtkObject *object);
static void gimp_layer_list_view_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static void gimp_layer_list_view_set_container (GimpContainerView *view,
GimpContainer *container);
static void gimp_layer_list_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data);
static void gimp_layer_list_view_anchor_clicked (GtkWidget *widget,
GimpLayerListView *view);
static void gimp_layer_list_view_paint_mode_menu_callback
(GtkWidget *widget,
GimpLayerListView *view);
static void gimp_layer_list_view_preserve_button_toggled
(GtkWidget *widget,
GimpLayerListView *view);
static void gimp_layer_list_view_opacity_scale_changed
(GtkAdjustment *adjustment,
GimpLayerListView *view);
static void gimp_layer_list_view_layer_signal_handler
(GimpLayer *layer,
GimpLayerListView *view);
static void gimp_layer_list_view_update_options (GimpLayerListView *view,
GimpLayer *layer);
static GimpDrawableListViewClass *parent_class = NULL;
GType
gimp_layer_list_view_get_type (void)
{
static GType view_type = 0;
if (! view_type)
{
GtkTypeInfo view_info =
{
"GimpLayerListView",
sizeof (GimpLayerListView),
sizeof (GimpLayerListViewClass),
(GtkClassInitFunc) gimp_layer_list_view_class_init,
(GtkObjectInitFunc) gimp_layer_list_view_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL
};
view_type = gtk_type_unique (GIMP_TYPE_DRAWABLE_LIST_VIEW, &view_info);
}
return view_type;
}
static void
gimp_layer_list_view_class_init (GimpLayerListViewClass *klass)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GimpContainerViewClass *container_view_class;
object_class = (GtkObjectClass *) klass;
widget_class = (GtkWidgetClass *) klass;
container_view_class = (GimpContainerViewClass *) klass;
parent_class = g_type_class_peek_parent (klass);
object_class->destroy = gimp_layer_list_view_destroy;
widget_class->style_set = gimp_layer_list_view_style_set;
container_view_class->set_container = gimp_layer_list_view_set_container;
container_view_class->select_item = gimp_layer_list_view_select_item;
}
static void
gimp_layer_list_view_init (GimpLayerListView *view)
{
GimpDrawableListView *drawable_view;
GtkWidget *hbox;
GtkWidget *abox;
GtkWidget *label;
GtkWidget *slider;
drawable_view = GIMP_DRAWABLE_LIST_VIEW (view);
view->options_box = gtk_vbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (view), view->options_box, FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (view), view->options_box, 0);
gtk_widget_show (view->options_box);
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (view->options_box), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
/* Paint mode menu */
label = gtk_label_new (_("Mode:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
view->paint_mode_menu =
gimp_paint_mode_menu_new (G_CALLBACK (gimp_layer_list_view_paint_mode_menu_callback),
view,
FALSE,
NORMAL_MODE);
gtk_box_pack_start (GTK_BOX (hbox), view->paint_mode_menu, FALSE, FALSE, 0);
gtk_widget_show (view->paint_mode_menu);
gimp_help_set_help_data (view->paint_mode_menu,
NULL, "#paint_mode_menu");
/* Preserve transparency toggle */
abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (hbox), abox, FALSE, FALSE, 0);
gtk_widget_show (abox);
view->preserve_trans_toggle =
gtk_toggle_button_new_with_label (_("Keep Trans."));
gtk_container_add (GTK_CONTAINER (abox), view->preserve_trans_toggle);
gtk_widget_show (view->preserve_trans_toggle);
g_signal_connect (G_OBJECT (view->preserve_trans_toggle), "toggled",
G_CALLBACK (gimp_layer_list_view_preserve_button_toggled),
view);
gimp_help_set_help_data (view->preserve_trans_toggle,
_("Keep Transparency"), "#keep_trans_button");
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (view->options_box), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
/* Opacity scale */
label = gtk_label_new (_("Opacity:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
view->opacity_adjustment =
GTK_ADJUSTMENT (gtk_adjustment_new (100.0, 0.0, 100.0, 1.0, 1.0, 0.0));
g_signal_connect (G_OBJECT (view->opacity_adjustment), "value_changed",
G_CALLBACK (gimp_layer_list_view_opacity_scale_changed),
view);
slider = gtk_hscale_new (view->opacity_adjustment);
gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_RIGHT);
gtk_box_pack_start (GTK_BOX (hbox), slider, TRUE, TRUE, 0);
gtk_widget_show (slider);
gimp_help_set_help_data (slider, NULL, "#opacity_scale");
/* Anchor button */
view->anchor_button =
gimp_container_view_add_button (GIMP_CONTAINER_VIEW (view),
GIMP_STOCK_ANCHOR,
_("Anchor"), NULL,
G_CALLBACK (gimp_layer_list_view_anchor_clicked),
NULL,
view);
gtk_box_reorder_child (GTK_BOX (GIMP_CONTAINER_VIEW (view)->button_box),
view->anchor_button, 5);
gimp_container_view_enable_dnd (GIMP_CONTAINER_VIEW (view),
GTK_BUTTON (view->anchor_button),
GIMP_TYPE_LAYER);
gtk_widget_set_sensitive (view->options_box, FALSE);
gtk_widget_set_sensitive (view->anchor_button, FALSE);
view->mode_changed_handler_id = 0;
view->opacity_changed_handler_id = 0;
view->preserve_trans_changed_handler_id = 0;
}
static void
gimp_layer_list_view_destroy (GtkObject *object)
{
GimpLayerListView *view;
view = GIMP_LAYER_LIST_VIEW (object);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gimp_layer_list_view_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
GimpLayerListView *layer_view;
gint content_spacing;
gint button_spacing;
layer_view = GIMP_LAYER_LIST_VIEW (widget);
gtk_widget_style_get (widget,
"content_spacing",
&content_spacing,
"button_spacing",
&button_spacing,
NULL);
gtk_box_set_spacing (GTK_BOX (layer_view->options_box), content_spacing);
if (GTK_WIDGET_CLASS (parent_class)->style_set)
GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
}
/* GimpContainerView methods */
static void
gimp_layer_list_view_set_container (GimpContainerView *view,
GimpContainer *container)
{
GimpLayerListView *layer_view;
layer_view = GIMP_LAYER_LIST_VIEW (view);
if (view->container)
{
gimp_container_remove_handler (view->container,
layer_view->mode_changed_handler_id);
gimp_container_remove_handler (view->container,
layer_view->opacity_changed_handler_id);
gimp_container_remove_handler (view->container,
layer_view->preserve_trans_changed_handler_id);
}
if (GIMP_CONTAINER_VIEW_CLASS (parent_class)->set_container)
GIMP_CONTAINER_VIEW_CLASS (parent_class)->set_container (view, container);
if (view->container)
{
layer_view->mode_changed_handler_id =
gimp_container_add_handler (view->container, "mode_changed",
G_CALLBACK (gimp_layer_list_view_layer_signal_handler),
view);
layer_view->opacity_changed_handler_id =
gimp_container_add_handler (view->container, "opacity_changed",
G_CALLBACK (gimp_layer_list_view_layer_signal_handler),
view);
layer_view->preserve_trans_changed_handler_id =
gimp_container_add_handler (view->container, "preserve_trans_changed",
G_CALLBACK (gimp_layer_list_view_layer_signal_handler),
view);
}
}
static void
gimp_layer_list_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data)
{
GimpDrawableListView *drawable_view;
GimpLayerListView *list_view;
gboolean options_sensitive = FALSE;
gboolean anchor_sensitive = FALSE;
gboolean raise_sensitive = FALSE;
list_view = GIMP_LAYER_LIST_VIEW (view);
drawable_view = GIMP_DRAWABLE_LIST_VIEW (view);
if (GIMP_CONTAINER_VIEW_CLASS (parent_class)->select_item)
GIMP_CONTAINER_VIEW_CLASS (parent_class)->select_item (view,
item,
insert_data);
if (item)
{
gimp_layer_list_view_update_options (list_view, GIMP_LAYER (item));
options_sensitive = TRUE;
if (gimp_layer_is_floating_sel (GIMP_LAYER (item)))
{
anchor_sensitive = TRUE;
gtk_widget_set_sensitive (drawable_view->lower_button, FALSE);
gtk_widget_set_sensitive (drawable_view->duplicate_button, FALSE);
gtk_widget_set_sensitive (drawable_view->edit_button, FALSE);
}
else
{
if (gimp_drawable_has_alpha (GIMP_DRAWABLE (item)) &&
gimp_container_get_child_index (view->container,
GIMP_OBJECT (item)))
{
raise_sensitive = TRUE;
}
}
}
gtk_widget_set_sensitive (list_view->options_box, options_sensitive);
gtk_widget_set_sensitive (drawable_view->raise_button, raise_sensitive);
gtk_widget_set_sensitive (list_view->anchor_button, anchor_sensitive);
}
/* "Anchor" functions */
static void
gimp_layer_list_view_anchor_clicked (GtkWidget *widget,
GimpLayerListView *view)
{
GimpDrawableListView *drawable_view;
GimpDrawable *drawable;
drawable_view = GIMP_DRAWABLE_LIST_VIEW (view);
drawable = drawable_view->get_drawable_func (drawable_view->gimage);
if (drawable)
g_print ("anchor \"%s\"\n", GIMP_OBJECT (drawable)->name);
}
/* Paint Mode, Opacity and Preserve trans. callbacks */
#define BLOCK() \
g_signal_handlers_block_by_func (G_OBJECT (layer), \
gimp_layer_list_view_layer_signal_handler, view)
#define UNBLOCK() \
g_signal_handlers_unblock_by_func (G_OBJECT (layer), \
gimp_layer_list_view_layer_signal_handler, view)
static void
gimp_layer_list_view_paint_mode_menu_callback (GtkWidget *widget,
GimpLayerListView *view)
{
GimpDrawableListView *drawable_view;
GimpLayer *layer;
drawable_view = GIMP_DRAWABLE_LIST_VIEW (view);
layer = (GimpLayer *) drawable_view->get_drawable_func (drawable_view->gimage);
if (layer)
{
LayerModeEffects mode;
mode = (LayerModeEffects)
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), "user_data"));
if (gimp_layer_get_mode (layer) != mode)
{
BLOCK();
gimp_layer_set_mode (layer, mode);
UNBLOCK();
gdisplays_flush ();
}
}
}
static void
gimp_layer_list_view_preserve_button_toggled (GtkWidget *widget,
GimpLayerListView *view)
{
GimpDrawableListView *drawable_view;
GimpLayer *layer;
drawable_view = GIMP_DRAWABLE_LIST_VIEW (view);
layer = (GimpLayer *) drawable_view->get_drawable_func (drawable_view->gimage);
if (layer)
{
gboolean preserve_trans;
preserve_trans = GTK_TOGGLE_BUTTON (widget)->active;
if (gimp_layer_get_preserve_trans (layer) != preserve_trans)
{
BLOCK();
gimp_layer_set_preserve_trans (layer, preserve_trans);
UNBLOCK();
}
}
}
static void
gimp_layer_list_view_opacity_scale_changed (GtkAdjustment *adjustment,
GimpLayerListView *view)
{
GimpDrawableListView *drawable_view;
GimpLayer *layer;
drawable_view = GIMP_DRAWABLE_LIST_VIEW (view);
layer = (GimpLayer *) drawable_view->get_drawable_func (drawable_view->gimage);
if (layer)
{
gdouble opacity;
opacity = adjustment->value / 100.0;
if (gimp_layer_get_opacity (layer) != opacity)
{
BLOCK();
gimp_layer_set_opacity (layer, opacity);
UNBLOCK();
gdisplays_flush ();
}
}
}
#undef BLOCK
#undef UNBLOCK
static void
gimp_layer_list_view_layer_signal_handler (GimpLayer *layer,
GimpLayerListView *view)
{
GimpDrawableListView *drawable_view;
drawable_view = GIMP_DRAWABLE_LIST_VIEW (view);
if (drawable_view->get_drawable_func (drawable_view->gimage) ==
(GimpDrawable *) layer)
{
gimp_layer_list_view_update_options (view, layer);
}
}
#define BLOCK(object,function) \
g_signal_handlers_block_by_func (G_OBJECT (object), \
(function), view)
#define UNBLOCK(object,function) \
g_signal_handlers_unblock_by_func (G_OBJECT (object), \
(function), view)
static void
gimp_layer_list_view_update_options (GimpLayerListView *view,
GimpLayer *layer)
{
gimp_option_menu_set_history (GTK_OPTION_MENU (view->paint_mode_menu),
GINT_TO_POINTER (layer->mode));
if (layer->preserve_trans !=
GTK_TOGGLE_BUTTON (view->preserve_trans_toggle)->active)
{
BLOCK (view->preserve_trans_toggle,
gimp_layer_list_view_preserve_button_toggled);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (view->preserve_trans_toggle),
layer->preserve_trans);
UNBLOCK (view->preserve_trans_toggle,
gimp_layer_list_view_preserve_button_toggled);
}
if ((gdouble) layer->opacity / 2.55 != view->opacity_adjustment->value)
{
BLOCK (view->opacity_adjustment,
gimp_layer_list_view_opacity_scale_changed);
gtk_adjustment_set_value (view->opacity_adjustment, layer->opacity / 2.55);
UNBLOCK (view->opacity_adjustment,
gimp_layer_list_view_opacity_scale_changed);
}
}
#undef BLOCK
#undef UNBLOCK
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