inicial

author: Perberos <[email protected]> 2011-11-09 18:17:43 -0300
committer: Perberos <[email protected]> 2011-11-09 18:17:43 -0300
commit: f6ce926719943751cf65cacde7fae050593eb2d6 (patch)
tree: 9224d1751678cf2d1fbd0431f128b711311c0287 /shell/ev-sidebar-layers.c
download: atril-f6ce926719943751cf65cacde7fae050593eb2d6.tar.bz2
atril-f6ce926719943751cf65cacde7fae050593eb2d6.tar.xz
1 files changed, 411 insertions, 0 deletions
diff --git a/shell/ev-sidebar-layers.c b/shell/ev-sidebar-layers.c
new file mode 100644
index 00000000..686cacaa
--- /dev/null
+++ b/shell/ev-sidebar-layers.c
@@ -0,0 +1,411 @@
+/* ev-sidebar-layers.c
+ * this file is part of evince, a mate document viewer
+ *
+ * Copyright (C) 2008 Carlos Garcia Campos <[email protected]>
+ *
+ * Evince 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.
+ *
+ * Evince 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+
+#include <glib/gi18n.h>
+#include "gimpcellrenderertoggle.h"
+
+#include "ev-document-layers.h"
+#include "ev-sidebar-page.h"
+#include "ev-jobs.h"
+#include "ev-job-scheduler.h"
+#include "ev-stock-icons.h"
+#include "ev-sidebar-layers.h"
+
+struct _EvSidebarLayersPrivate {
+ GtkTreeView *tree_view;
+
+ EvDocument *document;
+ EvJob *job;
+};
+
+enum {
+ PROP_0,
+ PROP_WIDGET
+};
+
+enum {
+ LAYERS_VISIBILITY_CHANGED,
+ N_SIGNALS
+};
+
+static void ev_sidebar_layers_page_iface_init (EvSidebarPageInterface *iface);
+static void job_finished_callback (EvJobLayers *job,
+ EvSidebarLayers *sidebar_layers);
+
+static guint signals[N_SIGNALS];
+
+G_DEFINE_TYPE_EXTENDED (EvSidebarLayers,
+ ev_sidebar_layers,
+ GTK_TYPE_VBOX,
+ 0, 
+ G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE, 
+ ev_sidebar_layers_page_iface_init))
+
+#define EV_SIDEBAR_LAYERS_GET_PRIVATE(object) \
+ (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_LAYERS, EvSidebarLayersPrivate))
+
+static void
+ev_sidebar_layers_dispose (GObject *object)
+{
+ EvSidebarLayers *sidebar = EV_SIDEBAR_LAYERS (object);
+
+ if (sidebar->priv->job) {
+ g_signal_handlers_disconnect_by_func (sidebar->priv->job,
+ job_finished_callback,
+ sidebar);
+ ev_job_cancel (sidebar->priv->job); 
+ g_object_unref (sidebar->priv->job);
+ sidebar->priv->job = NULL;
+ }
+
+ if (sidebar->priv->document) {
+ g_object_unref (sidebar->priv->document);
+ sidebar->priv->document = NULL;
+ }
+
+ G_OBJECT_CLASS (ev_sidebar_layers_parent_class)->dispose (object);
+}
+
+static void
+ev_sidebar_layers_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ EvSidebarLayers *ev_sidebar_layers;
+ 
+ ev_sidebar_layers = EV_SIDEBAR_LAYERS (object);
+
+ switch (prop_id) {
+ case PROP_WIDGET:
+ g_value_set_object (value, ev_sidebar_layers->priv->tree_view);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GtkTreeModel *
+ev_sidebar_layers_create_loading_model (void)
+{
+ GtkTreeModel *retval;
+ GtkTreeIter iter;
+ gchar *markup;
+
+ /* Creates a fake model to indicate that we're loading */
+ retval = (GtkTreeModel *)gtk_list_store_new (EV_DOCUMENT_LAYERS_N_COLUMNS,
+ G_TYPE_STRING,
+ G_TYPE_OBJECT,
+ G_TYPE_BOOLEAN,
+ G_TYPE_BOOLEAN,
+ G_TYPE_BOOLEAN,
+ G_TYPE_INT);
+
+ gtk_list_store_append (GTK_LIST_STORE (retval), &iter);
+ markup = g_strdup_printf ("<span size=\"larger\" style=\"italic\">%s</span>", _("Loading…"));
+ gtk_list_store_set (GTK_LIST_STORE (retval), &iter,
+ EV_DOCUMENT_LAYERS_COLUMN_TITLE, markup,
+ EV_DOCUMENT_LAYERS_COLUMN_VISIBLE, FALSE,
+ EV_DOCUMENT_LAYERS_COLUMN_ENABLED, TRUE,
+ EV_DOCUMENT_LAYERS_COLUMN_SHOWTOGGLE, FALSE,
+ EV_DOCUMENT_LAYERS_COLUMN_RBGROUP, -1,
+ EV_DOCUMENT_LAYERS_COLUMN_LAYER, NULL,
+ -1);
+ g_free (markup);
+
+ return retval;
+}
+
+static gboolean
+update_kids (GtkTreeModel *model,
+ GtkTreePath *path,
+ GtkTreeIter *iter,
+ GtkTreeIter *parent)
+{
+ if (gtk_tree_store_is_ancestor (GTK_TREE_STORE (model), parent, iter)) {
+ gboolean visible;
+
+ gtk_tree_model_get (model, parent,
+ EV_DOCUMENT_LAYERS_COLUMN_VISIBLE, &visible,
+ -1);
+ gtk_tree_store_set (GTK_TREE_STORE (model), iter,
+ EV_DOCUMENT_LAYERS_COLUMN_ENABLED, visible,
+ -1);
+ }
+
+ return FALSE;
+}
+
+static gboolean
+clear_rb_group (GtkTreeModel *model,
+ GtkTreePath *path,
+ GtkTreeIter *iter,
+ gint *rb_group)
+{
+ gint group;
+
+ gtk_tree_model_get (model, iter,
+ EV_DOCUMENT_LAYERS_COLUMN_RBGROUP, &group,
+ -1);
+
+ if (group == *rb_group) {
+ gtk_tree_store_set (GTK_TREE_STORE (model), iter,
+ EV_DOCUMENT_LAYERS_COLUMN_VISIBLE, FALSE,
+ -1);
+ }
+
+ return FALSE;
+}
+
+static void
+ev_sidebar_layers_visibility_changed (GtkCellRendererToggle *cell,
+ gchar *path_str,
+ EvSidebarLayers *ev_layers)
+{
+ GtkTreeModel *model;
+ GtkTreePath *path;
+ GtkTreeIter iter;
+ gboolean visible;
+ EvLayer *layer;
+
+ model = gtk_tree_view_get_model (ev_layers->priv->tree_view);
+ 
+ path = gtk_tree_path_new_from_string (path_str);
+ gtk_tree_model_get_iter (model, &iter, path);
+ gtk_tree_model_get (model, &iter,
+ EV_DOCUMENT_LAYERS_COLUMN_VISIBLE, &visible,
+ EV_DOCUMENT_LAYERS_COLUMN_LAYER, &layer, 
+ -1);
+ 
+ visible = !visible;
+ if (visible) {
+ gint rb_group;
+ 
+ ev_document_layers_show_layer (EV_DOCUMENT_LAYERS (ev_layers->priv->document),
+ layer);
+
+ rb_group = ev_layer_get_rb_group (layer);
+ if (rb_group) {
+ gtk_tree_model_foreach (model,
+ (GtkTreeModelForeachFunc)clear_rb_group,
+ &rb_group);
+ }
+ } else {
+ ev_document_layers_hide_layer (EV_DOCUMENT_LAYERS (ev_layers->priv->document),
+ layer);
+ }
+ 
+ gtk_tree_store_set (GTK_TREE_STORE (model), &iter,
+ EV_DOCUMENT_LAYERS_COLUMN_VISIBLE, visible,
+ -1);
+
+ if (ev_layer_is_parent (layer)) {
+ gtk_tree_model_foreach (model,
+ (GtkTreeModelForeachFunc)update_kids,
+ &iter);
+ }
+ 
+ gtk_tree_path_free (path);
+
+ g_signal_emit (ev_layers, signals[LAYERS_VISIBILITY_CHANGED], 0);
+}
+
+static GtkTreeView *
+ev_sidebar_layers_create_tree_view (EvSidebarLayers *ev_layers)
+{
+ GtkTreeView *tree_view;
+ GtkTreeViewColumn *column;
+ GtkCellRenderer *renderer;
+ 
+ tree_view = GTK_TREE_VIEW (gtk_tree_view_new ());
+ gtk_tree_view_set_headers_visible (tree_view, FALSE);
+ gtk_tree_selection_set_mode (gtk_tree_view_get_selection (tree_view),
+ GTK_SELECTION_NONE);
+
+
+ column = gtk_tree_view_column_new ();
+
+ renderer = gimp_cell_renderer_toggle_new (EV_STOCK_VISIBLE);
+ gtk_tree_view_column_pack_start (column, renderer, FALSE);
+ gtk_tree_view_column_set_attributes (column, renderer,
+ "active", EV_DOCUMENT_LAYERS_COLUMN_VISIBLE,
+ "activatable", EV_DOCUMENT_LAYERS_COLUMN_ENABLED,
+ "visible", EV_DOCUMENT_LAYERS_COLUMN_SHOWTOGGLE,
+ "sensitive", EV_DOCUMENT_LAYERS_COLUMN_ENABLED,
+ NULL);
+ g_object_set (G_OBJECT (renderer),
+ "xpad", 0,
+ "ypad", 0,
+ NULL);
+ g_signal_connect (renderer, "toggled",
+ G_CALLBACK (ev_sidebar_layers_visibility_changed),
+ (gpointer)ev_layers);
+
+ renderer = gtk_cell_renderer_text_new ();
+ gtk_tree_view_column_pack_start (column, renderer, TRUE);
+ gtk_tree_view_column_set_attributes (column, renderer,
+ "markup", EV_DOCUMENT_LAYERS_COLUMN_TITLE,
+ "sensitive", EV_DOCUMENT_LAYERS_COLUMN_ENABLED,
+ NULL);
+ g_object_set (G_OBJECT (renderer), "ellipsize", PANGO_ELLIPSIZE_END, NULL);
+ 
+ gtk_tree_view_append_column (tree_view, column);
+
+ return tree_view;
+}
+
+static void
+ev_sidebar_layers_init (EvSidebarLayers *ev_layers)
+{
+ GtkWidget *swindow;
+ GtkTreeModel *model;
+ 
+ ev_layers->priv = EV_SIDEBAR_LAYERS_GET_PRIVATE (ev_layers);
+
+ swindow = gtk_scrolled_window_new (NULL, NULL);
+ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
+ GTK_POLICY_NEVER,
+ GTK_POLICY_AUTOMATIC);
+ gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
+ GTK_SHADOW_IN);
+ /* Data Model */
+ model = ev_sidebar_layers_create_loading_model ();
+
+ /* Layers list */
+ ev_layers->priv->tree_view = ev_sidebar_layers_create_tree_view (ev_layers);
+ gtk_tree_view_set_model (ev_layers->priv->tree_view, model);
+ g_object_unref (model);
+
+ gtk_container_add (GTK_CONTAINER (swindow),
+ GTK_WIDGET (ev_layers->priv->tree_view));
+
+ gtk_container_add (GTK_CONTAINER (ev_layers), swindow);
+ gtk_widget_show_all (GTK_WIDGET (ev_layers));
+}
+
+static void
+ev_sidebar_layers_class_init (EvSidebarLayersClass *ev_layers_class)
+{
+ GObjectClass *g_object_class = G_OBJECT_CLASS (ev_layers_class);
+
+ g_object_class->get_property = ev_sidebar_layers_get_property;
+ g_object_class->dispose = ev_sidebar_layers_dispose;
+
+ g_type_class_add_private (g_object_class, sizeof (EvSidebarLayersPrivate));
+
+ g_object_class_override_property (g_object_class, PROP_WIDGET, "main-widget");
+
+ signals[LAYERS_VISIBILITY_CHANGED] =
+ g_signal_new ("layers_visibility_changed",
+ G_TYPE_FROM_CLASS (g_object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EvSidebarLayersClass, layers_visibility_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0, G_TYPE_NONE);
+}
+
+GtkWidget *
+ev_sidebar_layers_new (void)
+{
+ return GTK_WIDGET (g_object_new (EV_TYPE_SIDEBAR_LAYERS, NULL));
+}
+
+static void
+job_finished_callback (EvJobLayers *job,
+ EvSidebarLayers *sidebar_layers)
+{
+ EvSidebarLayersPrivate *priv;
+
+ priv = sidebar_layers->priv;
+
+ gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), job->model);
+ 
+ g_object_unref (job);
+ priv->job = NULL;
+}
+
+static void
+ev_sidebar_layers_document_changed_cb (EvDocumentModel *model,
+ GParamSpec *pspec,
+ EvSidebarLayers *sidebar_layers)
+{
+ EvDocument *document = ev_document_model_get_document (model);
+ EvSidebarLayersPrivate *priv = sidebar_layers->priv;
+
+ if (!EV_IS_DOCUMENT_LAYERS (document))
+ return;
+
+ if (priv->document) {
+ gtk_tree_view_set_model (GTK_TREE_VIEW (priv->tree_view), NULL);
+ g_object_unref (priv->document);
+ }
+
+ priv->document = g_object_ref (document);
+
+ if (priv->job) {
+ g_signal_handlers_disconnect_by_func (priv->job,
+ job_finished_callback,
+ sidebar_layers);
+ g_object_unref (priv->job);
+ }
+
+ priv->job = ev_job_layers_new (document);
+ g_signal_connect (priv->job, "finished",
+ G_CALLBACK (job_finished_callback),
+ sidebar_layers);
+ /* The priority doesn't matter for this job */
+ ev_job_scheduler_push_job (priv->job, EV_JOB_PRIORITY_NONE);
+}
+
+static void
+ev_sidebar_layers_set_model (EvSidebarPage *sidebar_page,
+ EvDocumentModel *model)
+{
+ g_signal_connect (model, "notify::document",
+ G_CALLBACK (ev_sidebar_layers_document_changed_cb),
+ sidebar_page);
+}
+
+static gboolean
+ev_sidebar_layers_support_document (EvSidebarPage *sidebar_page,
+ EvDocument *document)
+{
+ return (EV_IS_DOCUMENT_LAYERS (document) &&
+ ev_document_layers_has_layers (EV_DOCUMENT_LAYERS (document)));
+}
+
+static const gchar*
+ev_sidebar_layers_get_label (EvSidebarPage *sidebar_page)
+{
+ return _("Layers");
+}
+
+static void
+ev_sidebar_layers_page_iface_init (EvSidebarPageInterface *iface)
+{
+ iface->support_document = ev_sidebar_layers_support_document;
+ iface->set_model = ev_sidebar_layers_set_model;
+ iface->get_label = ev_sidebar_layers_get_label;
+}
+
author	Perberos <[email protected]>	2011-11-09 18:17:43 -0300
committer	Perberos <[email protected]>	2011-11-09 18:17:43 -0300
commit	f6ce926719943751cf65cacde7fae050593eb2d6 (patch)
tree	9224d1751678cf2d1fbd0431f128b711311c0287 /shell/ev-sidebar-layers.c
download	atril-f6ce926719943751cf65cacde7fae050593eb2d6.tar.bz2 atril-f6ce926719943751cf65cacde7fae050593eb2d6.tar.xz