590 lines
24 KiB
C
590 lines
24 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikapickablechooser.c
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* Copyright (C) 2023 Jehan
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include "libpikabase/pikabase.h"
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#include "libpikawidgets/pikawidgets.h"
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#include "widgets-types.h"
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#include "core/pika.h"
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#include "core/pikachannel.h"
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#include "core/pikacontext.h"
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#include "core/pikaimage.h"
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#include "core/pikalayer.h"
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#include "core/pikapickable.h"
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#include "core/pikaviewable.h"
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#include "pikacontainertreeview.h"
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#include "pikacontainerview.h"
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#include "pikapickablechooser.h"
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#include "pikaviewrenderer.h"
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#include "pika-intl.h"
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enum
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{
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ACTIVATE,
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_CONTEXT,
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PROP_PICKABLE_TYPE,
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PROP_PICKABLE,
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PROP_VIEW_SIZE,
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PROP_VIEW_BORDER_WIDTH
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};
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struct _PikaPickableChooserPrivate
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{
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GType pickable_type;
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PikaPickable *pickable;
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PikaContext *context;
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gint view_size;
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gint view_border_width;
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GtkWidget *image_view;
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GtkWidget *layer_view;
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GtkWidget *channel_view;
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GtkWidget *layer_label;
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};
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static void pika_pickable_chooser_constructed (GObject *object);
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static void pika_pickable_chooser_finalize (GObject *object);
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static void pika_pickable_chooser_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void pika_pickable_chooser_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static void pika_pickable_chooser_image_changed (PikaContext *context,
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PikaImage *image,
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PikaPickableChooser *chooser);
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static void pika_pickable_chooser_item_activate (PikaContainerView *view,
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PikaPickable *pickable,
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gpointer unused,
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PikaPickableChooser *chooser);
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static void pika_pickable_chooser_items_selected (PikaContainerView *view,
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GList *items,
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GList *paths,
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PikaPickableChooser *chooser);
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G_DEFINE_TYPE_WITH_PRIVATE (PikaPickableChooser, pika_pickable_chooser, GTK_TYPE_FRAME)
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#define parent_class pika_pickable_chooser_parent_class
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static guint signals[LAST_SIGNAL];
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static void
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pika_pickable_chooser_class_init (PikaPickableChooserClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->constructed = pika_pickable_chooser_constructed;
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object_class->finalize = pika_pickable_chooser_finalize;
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object_class->get_property = pika_pickable_chooser_get_property;
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object_class->set_property = pika_pickable_chooser_set_property;
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/**
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* PikaPickableChooser::activate:
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* @chooser:
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*
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* Emitted when a pickable is activated, which is mostly forwarding when
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* "activate-item" signal is emitted from any of either the image, layer or
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* channel view. E.g. this happens when one double-click on one of the
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* pickables.
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*/
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signals[ACTIVATE] =
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g_signal_new ("activate",
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (PikaPickableChooserClass, activate),
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NULL, NULL, NULL,
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G_TYPE_NONE, 1,
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PIKA_TYPE_OBJECT);
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g_object_class_install_property (object_class, PROP_CONTEXT,
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g_param_spec_object ("context",
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NULL, NULL,
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PIKA_TYPE_CONTEXT,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property (object_class, PROP_PICKABLE_TYPE,
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g_param_spec_gtype ("pickable-type",
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NULL, NULL,
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PIKA_TYPE_PICKABLE,
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PIKA_PARAM_WRITABLE |
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G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property (object_class, PROP_PICKABLE,
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g_param_spec_object ("pickable",
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NULL, NULL,
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PIKA_TYPE_PICKABLE,
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PIKA_PARAM_READWRITE |
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G_PARAM_EXPLICIT_NOTIFY));
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g_object_class_install_property (object_class, PROP_VIEW_SIZE,
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g_param_spec_int ("view-size",
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NULL, NULL,
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1, PIKA_VIEWABLE_MAX_PREVIEW_SIZE,
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PIKA_VIEW_SIZE_MEDIUM,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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g_object_class_install_property (object_class, PROP_VIEW_BORDER_WIDTH,
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g_param_spec_int ("view-border-width",
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NULL, NULL,
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0,
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PIKA_VIEW_MAX_BORDER_WIDTH,
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1,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT));
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}
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static void
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pika_pickable_chooser_init (PikaPickableChooser *chooser)
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{
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chooser->priv = pika_pickable_chooser_get_instance_private (chooser);
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chooser->priv->view_size = PIKA_VIEW_SIZE_SMALL;
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chooser->priv->view_border_width = 1;
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chooser->priv->layer_view = NULL;
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chooser->priv->channel_view = NULL;
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}
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static void
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pika_pickable_chooser_constructed (GObject *object)
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{
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PikaPickableChooser *chooser = PIKA_PICKABLE_CHOOSER (object);
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GtkWidget *hbox;
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GtkWidget *vbox;
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GtkWidget *label;
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GtkWidget *notebook;
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PikaImage *image;
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G_OBJECT_CLASS (parent_class)->constructed (object);
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pika_assert (PIKA_IS_CONTEXT (chooser->priv->context));
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gtk_frame_set_shadow_type (GTK_FRAME (chooser), GTK_SHADOW_OUT);
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
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gtk_container_set_border_width (GTK_CONTAINER (hbox), 6);
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gtk_container_add (GTK_CONTAINER (chooser), hbox);
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gtk_widget_show (hbox);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
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gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
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gtk_widget_show (vbox);
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label = gtk_label_new (_("Images"));
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gtk_label_set_xalign (GTK_LABEL (label), 0.0);
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gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
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gtk_widget_show (label);
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chooser->priv->image_view =
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pika_container_tree_view_new (chooser->priv->context->pika->images,
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chooser->priv->context,
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chooser->priv->view_size,
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chooser->priv->view_border_width);
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pika_container_box_set_size_request (PIKA_CONTAINER_BOX (chooser->priv->image_view),
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4 * (chooser->priv->view_size +
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2 * chooser->priv->view_border_width),
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4 * (chooser->priv->view_size +
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2 * chooser->priv->view_border_width));
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gtk_box_pack_start (GTK_BOX (vbox), chooser->priv->image_view, TRUE, TRUE, 0);
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gtk_widget_show (chooser->priv->image_view);
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g_signal_connect_object (chooser->priv->image_view, "activate-item",
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G_CALLBACK (pika_pickable_chooser_item_activate),
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G_OBJECT (chooser), 0);
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g_signal_connect_object (chooser->priv->image_view, "select-items",
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G_CALLBACK (pika_pickable_chooser_items_selected),
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G_OBJECT (chooser), 0);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
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gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
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gtk_widget_show (vbox);
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chooser->priv->layer_label = label =
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gtk_label_new (_("Select an image in the left pane"));
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gtk_label_set_xalign (GTK_LABEL (label), 0.0);
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gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_END);
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gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
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gtk_widget_show (label);
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notebook = gtk_notebook_new ();
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gtk_box_pack_start (GTK_BOX (vbox), notebook, TRUE, TRUE, 0);
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gtk_widget_show (notebook);
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if (g_type_is_a (PIKA_TYPE_LAYER, chooser->priv->pickable_type))
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{
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chooser->priv->layer_view =
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pika_container_tree_view_new (NULL,
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chooser->priv->context,
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chooser->priv->view_size,
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chooser->priv->view_border_width);
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gtk_tree_view_set_show_expanders (GTK_TREE_VIEW (PIKA_CONTAINER_TREE_VIEW (chooser->priv->layer_view)->view),
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TRUE);
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pika_container_box_set_size_request (PIKA_CONTAINER_BOX (chooser->priv->layer_view),
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4 * (chooser->priv->view_size +
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2 * chooser->priv->view_border_width),
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4 * (chooser->priv->view_size +
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2 * chooser->priv->view_border_width));
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
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chooser->priv->layer_view,
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gtk_label_new (_("Layers")));
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gtk_widget_show (chooser->priv->layer_view);
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g_signal_connect_object (chooser->priv->layer_view, "activate-item",
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G_CALLBACK (pika_pickable_chooser_item_activate),
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G_OBJECT (chooser), 0);
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g_signal_connect_object (chooser->priv->layer_view, "select-items",
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G_CALLBACK (pika_pickable_chooser_items_selected),
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G_OBJECT (chooser), 0);
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}
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if (g_type_is_a (PIKA_TYPE_CHANNEL, chooser->priv->pickable_type))
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{
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chooser->priv->channel_view =
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pika_container_tree_view_new (NULL,
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chooser->priv->context,
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chooser->priv->view_size,
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chooser->priv->view_border_width);
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pika_container_box_set_size_request (PIKA_CONTAINER_BOX (chooser->priv->channel_view),
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4 * (chooser->priv->view_size +
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2 * chooser->priv->view_border_width),
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4 * (chooser->priv->view_size +
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2 * chooser->priv->view_border_width));
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
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chooser->priv->channel_view,
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gtk_label_new (_("Channels")));
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gtk_widget_show (chooser->priv->channel_view);
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g_signal_connect_object (chooser->priv->channel_view, "activate-item",
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G_CALLBACK (pika_pickable_chooser_item_activate),
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G_OBJECT (chooser), 0);
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g_signal_connect_object (chooser->priv->channel_view, "select-items",
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G_CALLBACK (pika_pickable_chooser_items_selected),
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G_OBJECT (chooser), 0);
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}
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g_signal_connect_object (chooser->priv->context, "image-changed",
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G_CALLBACK (pika_pickable_chooser_image_changed),
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G_OBJECT (chooser), 0);
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image = pika_context_get_image (chooser->priv->context);
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pika_pickable_chooser_image_changed (chooser->priv->context, image, chooser);
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}
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static void
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pika_pickable_chooser_finalize (GObject *object)
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{
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PikaPickableChooser *chooser = PIKA_PICKABLE_CHOOSER (object);
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g_clear_object (&chooser->priv->pickable);
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g_clear_object (&chooser->priv->context);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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pika_pickable_chooser_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PikaPickableChooser *chooser = PIKA_PICKABLE_CHOOSER (object);
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switch (property_id)
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{
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case PROP_CONTEXT:
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if (chooser->priv->context)
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g_object_unref (chooser->priv->context);
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chooser->priv->context = g_value_dup_object (value);
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break;
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case PROP_VIEW_SIZE:
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chooser->priv->view_size = g_value_get_int (value);
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break;
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case PROP_VIEW_BORDER_WIDTH:
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chooser->priv->view_border_width = g_value_get_int (value);
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break;
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case PROP_PICKABLE_TYPE:
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g_return_if_fail (g_value_get_gtype (value) == PIKA_TYPE_LAYER ||
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g_value_get_gtype (value) == PIKA_TYPE_CHANNEL ||
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g_value_get_gtype (value) == PIKA_TYPE_DRAWABLE ||
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g_value_get_gtype (value) == PIKA_TYPE_IMAGE ||
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g_value_get_gtype (value) == PIKA_TYPE_PICKABLE);
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chooser->priv->pickable_type = g_value_get_gtype (value);
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break;
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case PROP_PICKABLE:
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g_return_if_fail (g_value_get_object (value) == NULL ||
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g_type_is_a (G_TYPE_FROM_INSTANCE (g_value_get_object (value)),
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chooser->priv->pickable_type));
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pika_pickable_chooser_set_pickable (chooser, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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pika_pickable_chooser_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PikaPickableChooser *chooser = PIKA_PICKABLE_CHOOSER (object);
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switch (property_id)
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{
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case PROP_CONTEXT:
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g_value_set_object (value, chooser->priv->context);
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break;
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case PROP_PICKABLE_TYPE:
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g_value_set_gtype (value, chooser->priv->pickable_type);
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break;
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case PROP_PICKABLE:
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g_value_set_object (value, chooser->priv->pickable);
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break;
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case PROP_VIEW_SIZE:
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g_value_set_int (value, chooser->priv->view_size);
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break;
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case PROP_VIEW_BORDER_WIDTH:
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g_value_set_int (value, chooser->priv->view_border_width);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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GtkWidget *
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pika_pickable_chooser_new (PikaContext *context,
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GType pickable_type,
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gint view_size,
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gint view_border_width)
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{
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g_return_val_if_fail (PIKA_IS_CONTEXT (context), NULL);
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g_return_val_if_fail (view_size > 0 &&
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view_size <= PIKA_VIEWABLE_MAX_POPUP_SIZE, NULL);
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g_return_val_if_fail (view_border_width >= 0 &&
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view_border_width <= PIKA_VIEW_MAX_BORDER_WIDTH,
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NULL);
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return g_object_new (PIKA_TYPE_PICKABLE_CHOOSER,
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"context", context,
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"pickable-type", pickable_type,
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"view-size", view_size,
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"view-border-width", view_border_width,
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NULL);
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}
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PikaPickable *
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pika_pickable_chooser_get_pickable (PikaPickableChooser *chooser)
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{
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g_return_val_if_fail (PIKA_IS_PICKABLE_CHOOSER (chooser), NULL);
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return chooser->priv->pickable;
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}
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void
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pika_pickable_chooser_set_pickable (PikaPickableChooser *chooser,
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PikaPickable *pickable)
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{
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if (! gtk_widget_in_destruction (GTK_WIDGET (chooser)))
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{
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g_signal_handlers_disconnect_by_func (chooser->priv->image_view,
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G_CALLBACK (pika_pickable_chooser_items_selected),
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chooser);
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if (chooser->priv->layer_view != NULL)
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g_signal_handlers_disconnect_by_func (chooser->priv->layer_view,
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G_CALLBACK (pika_pickable_chooser_items_selected),
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chooser);
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else
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g_return_if_fail (! PIKA_IS_LAYER (pickable));
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if (chooser->priv->channel_view != NULL)
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g_signal_handlers_disconnect_by_func (chooser->priv->channel_view,
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G_CALLBACK (pika_pickable_chooser_items_selected),
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chooser);
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else
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g_return_if_fail (! PIKA_IS_CHANNEL (pickable));
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if (PIKA_IS_IMAGE (pickable))
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{
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pika_container_view_select_item (PIKA_CONTAINER_VIEW (chooser->priv->image_view),
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PIKA_VIEWABLE (pickable));
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pika_context_set_image (chooser->priv->context, PIKA_IMAGE (pickable));
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}
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else if (PIKA_IS_LAYER (pickable))
|
|
{
|
|
pika_context_set_image (chooser->priv->context, pika_item_get_image (PIKA_ITEM (pickable)));
|
|
pika_container_view_select_item (PIKA_CONTAINER_VIEW (chooser->priv->layer_view),
|
|
PIKA_VIEWABLE (pickable));
|
|
}
|
|
else if (PIKA_IS_CHANNEL (pickable))
|
|
{
|
|
pika_context_set_image (chooser->priv->context, pika_item_get_image (PIKA_ITEM (pickable)));
|
|
pika_container_view_select_item (PIKA_CONTAINER_VIEW (chooser->priv->channel_view),
|
|
PIKA_VIEWABLE (pickable));
|
|
}
|
|
else
|
|
{
|
|
g_return_if_fail (pickable == NULL);
|
|
pika_container_view_select_item (PIKA_CONTAINER_VIEW (chooser->priv->image_view), NULL);
|
|
pika_context_set_image (chooser->priv->context, NULL);
|
|
}
|
|
g_signal_connect_object (chooser->priv->image_view, "select-items",
|
|
G_CALLBACK (pika_pickable_chooser_items_selected),
|
|
G_OBJECT (chooser), 0);
|
|
if (chooser->priv->layer_view != NULL)
|
|
g_signal_connect_object (chooser->priv->layer_view, "select-items",
|
|
G_CALLBACK (pika_pickable_chooser_items_selected),
|
|
G_OBJECT (chooser), 0);
|
|
if (chooser->priv->channel_view != NULL)
|
|
g_signal_connect_object (chooser->priv->channel_view, "select-items",
|
|
G_CALLBACK (pika_pickable_chooser_items_selected),
|
|
G_OBJECT (chooser), 0);
|
|
}
|
|
|
|
if (pickable != chooser->priv->pickable)
|
|
{
|
|
g_clear_object (&chooser->priv->pickable);
|
|
chooser->priv->pickable = (pickable != NULL ? g_object_ref (pickable) : NULL);
|
|
g_object_notify (G_OBJECT (chooser), "pickable");
|
|
}
|
|
}
|
|
|
|
|
|
/* private functions */
|
|
|
|
static void
|
|
pika_pickable_chooser_image_changed (PikaContext *context,
|
|
PikaImage *image,
|
|
PikaPickableChooser *chooser)
|
|
{
|
|
PikaContainer *layers = NULL;
|
|
PikaContainer *channels = NULL;
|
|
|
|
if (image)
|
|
{
|
|
gchar *desc;
|
|
|
|
layers = pika_image_get_layers (image);
|
|
channels = pika_image_get_channels (image);
|
|
|
|
desc = pika_viewable_get_description (PIKA_VIEWABLE (image), NULL);
|
|
gtk_label_set_text (GTK_LABEL (chooser->priv->layer_label), desc);
|
|
g_free (desc);
|
|
}
|
|
else
|
|
{
|
|
gtk_label_set_text (GTK_LABEL (chooser->priv->layer_label),
|
|
_("Select an image in the left pane"));
|
|
}
|
|
|
|
g_signal_handlers_disconnect_by_func (chooser->priv->image_view,
|
|
G_CALLBACK (pika_pickable_chooser_items_selected),
|
|
chooser);
|
|
if (chooser->priv->layer_view != NULL)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (chooser->priv->layer_view,
|
|
G_CALLBACK (pika_pickable_chooser_items_selected),
|
|
chooser);
|
|
pika_container_view_set_container (PIKA_CONTAINER_VIEW (chooser->priv->layer_view),
|
|
layers);
|
|
g_signal_connect_object (chooser->priv->layer_view, "select-items",
|
|
G_CALLBACK (pika_pickable_chooser_items_selected),
|
|
G_OBJECT (chooser), 0);
|
|
}
|
|
if (chooser->priv->channel_view != NULL)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (chooser->priv->channel_view,
|
|
G_CALLBACK (pika_pickable_chooser_items_selected),
|
|
chooser);
|
|
pika_container_view_set_container (PIKA_CONTAINER_VIEW (chooser->priv->channel_view),
|
|
channels);
|
|
g_signal_connect_object (chooser->priv->channel_view, "select-items",
|
|
G_CALLBACK (pika_pickable_chooser_items_selected),
|
|
G_OBJECT (chooser), 0);
|
|
}
|
|
g_signal_connect_object (chooser->priv->image_view, "select-items",
|
|
G_CALLBACK (pika_pickable_chooser_items_selected),
|
|
G_OBJECT (chooser), 0);
|
|
}
|
|
|
|
static void
|
|
pika_pickable_chooser_item_activate (PikaContainerView *view,
|
|
PikaPickable *pickable,
|
|
gpointer unused,
|
|
PikaPickableChooser *chooser)
|
|
{
|
|
g_signal_emit (chooser, signals[ACTIVATE], 0, pickable);
|
|
}
|
|
|
|
static void
|
|
pika_pickable_chooser_items_selected (PikaContainerView *view,
|
|
GList *items,
|
|
GList *paths,
|
|
PikaPickableChooser *chooser)
|
|
{
|
|
PikaPickable *pickable = NULL;
|
|
|
|
g_return_if_fail (g_list_length (items) <= 1);
|
|
|
|
if (items != NULL)
|
|
pickable = items->data;
|
|
|
|
pika_pickable_chooser_set_pickable (chooser, pickable);
|
|
}
|
