2 * Copyright (C) 2003, 2004 Christian Persch
4 * Modified 2005 by James Bowes for use in evince.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2, or (at your option)
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
25 #include "ephy-zoom-control.h"
26 #include "ephy-zoom.h"
29 #include <glib/gi18n.h>
31 #define EPHY_ZOOM_CONTROL_GET_PRIVATE(object)\
32 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_ZOOM_CONTROL, EphyZoomControlPrivate))
34 struct _EphyZoomControlPrivate
63 static guint signals[LAST_SIGNAL];
65 G_DEFINE_TYPE (EphyZoomControl, ephy_zoom_control, GTK_TYPE_TOOL_ITEM)
68 combo_changed_cb (GtkComboBox *combo, EphyZoomControl *control)
73 index = gtk_combo_box_get_active (combo);
74 zoom = zoom_levels[index].level;
76 if (zoom != control->priv->zoom)
78 g_signal_emit (control, signals[ZOOM_TO_LEVEL_SIGNAL], 0, zoom);
83 sync_zoom_cb (EphyZoomControl *control, GParamSpec *pspec, gpointer data)
85 EphyZoomControlPrivate *p = control->priv;
88 index = ephy_zoom_get_zoom_level_index (p->zoom);
90 g_signal_handler_block (p->combo, p->handler_id);
91 gtk_combo_box_set_active (p->combo, index);
92 g_signal_handler_unblock (p->combo, p->handler_id);
96 sync_zoom_max_min_cb (EphyZoomControl *control, GParamSpec *pspec, gpointer data)
98 EphyZoomControlPrivate *p = control->priv;
99 GtkListStore *model = (GtkListStore *)gtk_combo_box_get_model (p->combo);
103 g_signal_handler_block (p->combo, p->handler_id);
104 gtk_list_store_clear (model);
106 for (i = 0; i < n_zoom_levels; i++)
108 if (zoom_levels[i].level > 0) {
109 if (zoom_levels[i].level < p->min_zoom)
112 if (zoom_levels[i].level > p->max_zoom)
116 gtk_list_store_append (model, &iter);
118 if (zoom_levels[i].name != NULL) {
119 gtk_list_store_set (model, &iter,
120 COL_TEXT, _(zoom_levels[i].name),
123 gtk_list_store_set (model, &iter,
124 COL_IS_SEP, zoom_levels[i].name == NULL,
129 gtk_combo_box_set_active (p->combo, ephy_zoom_get_zoom_level_index (p->zoom));
130 g_signal_handler_unblock (p->combo, p->handler_id);
134 row_is_separator (GtkTreeModel *model,
139 gtk_tree_model_get (model, iter, COL_IS_SEP, &is_sep, -1);
144 ephy_zoom_control_finalize (GObject *o)
146 EphyZoomControl *control = EPHY_ZOOM_CONTROL (o);
148 g_object_unref (control->priv->combo);
150 G_OBJECT_CLASS (ephy_zoom_control_parent_class)->finalize (o);
154 ephy_zoom_control_init (EphyZoomControl *control)
156 EphyZoomControlPrivate *p;
158 GtkCellRenderer *renderer;
163 p = EPHY_ZOOM_CONTROL_GET_PRIVATE (control);
168 store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_BOOLEAN);
170 for (i = 0; i < n_zoom_levels; i++)
172 gtk_list_store_append (store, &iter);
174 if (zoom_levels[i].name != NULL) {
175 gtk_list_store_set (store, &iter,
176 COL_TEXT, _(zoom_levels[i].name),
179 gtk_list_store_set (store, &iter,
180 COL_IS_SEP, zoom_levels[i].name == NULL,
185 p->combo = GTK_COMBO_BOX (gtk_combo_box_new_with_model (GTK_TREE_MODEL (store)));
186 g_object_unref (store);
188 renderer = gtk_cell_renderer_text_new ();
189 gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (p->combo), renderer, TRUE);
190 gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (p->combo), renderer,
191 "text", COL_TEXT, NULL);
192 gtk_combo_box_set_row_separator_func (p->combo,
193 (GtkTreeViewRowSeparatorFunc) row_is_separator,
196 gtk_combo_box_set_focus_on_click (p->combo, FALSE);
197 g_object_ref_sink (G_OBJECT (p->combo));
198 gtk_widget_show (GTK_WIDGET (p->combo));
200 i = ephy_zoom_get_zoom_level_index (p->zoom);
201 gtk_combo_box_set_active (p->combo, i);
203 vbox = gtk_vbox_new (TRUE, 0);
204 gtk_box_pack_start (GTK_BOX (vbox), GTK_WIDGET (p->combo), TRUE, FALSE, 0);
205 gtk_widget_show (vbox);
207 gtk_container_add (GTK_CONTAINER (control), vbox);
209 p->handler_id = g_signal_connect (p->combo, "changed",
210 G_CALLBACK (combo_changed_cb), control);
212 g_signal_connect_object (control, "notify::zoom",
213 G_CALLBACK (sync_zoom_cb), NULL, 0);
214 g_signal_connect_object (control, "notify::min-zoom",
215 G_CALLBACK (sync_zoom_max_min_cb), NULL, 0);
216 g_signal_connect_object (control, "notify::max-zoom",
217 G_CALLBACK (sync_zoom_max_min_cb), NULL, 0);
221 ephy_zoom_control_set_property (GObject *object,
226 EphyZoomControl *control;
227 EphyZoomControlPrivate *p;
229 control = EPHY_ZOOM_CONTROL (object);
235 p->zoom = g_value_get_float (value);
238 p->min_zoom = g_value_get_float (value);
241 p->max_zoom = g_value_get_float (value);
247 ephy_zoom_control_get_property (GObject *object,
252 EphyZoomControl *control;
253 EphyZoomControlPrivate *p;
255 control = EPHY_ZOOM_CONTROL (object);
261 g_value_set_float (value, p->zoom);
264 g_value_set_float (value, p->min_zoom);
267 g_value_set_float (value, p->max_zoom);
273 ephy_zoom_control_class_init (EphyZoomControlClass *klass)
275 GObjectClass *object_class;
276 GtkToolItemClass *tool_item_class;
278 object_class = (GObjectClass *)klass;
279 tool_item_class = (GtkToolItemClass *)klass;
281 object_class->set_property = ephy_zoom_control_set_property;
282 object_class->get_property = ephy_zoom_control_get_property;
283 object_class->finalize = ephy_zoom_control_finalize;
285 g_object_class_install_property (object_class,
287 g_param_spec_float ("zoom",
289 "Zoom level to display in the item.",
294 g_object_class_install_property (object_class,
296 g_param_spec_float ("min-zoom",
303 g_object_class_install_property (object_class,
305 g_param_spec_float ("max-zoom",
313 signals[ZOOM_TO_LEVEL_SIGNAL] =
314 g_signal_new ("zoom_to_level",
315 G_TYPE_FROM_CLASS (klass),
317 G_STRUCT_OFFSET (EphyZoomControlClass,
320 g_cclosure_marshal_VOID__FLOAT,
325 g_type_class_add_private (object_class, sizeof (EphyZoomControlPrivate));
329 ephy_zoom_control_set_zoom_level (EphyZoomControl *control, float zoom)
331 g_return_if_fail (EPHY_IS_ZOOM_CONTROL (control));
333 if (zoom < ZOOM_MINIMAL || zoom > ZOOM_MAXIMAL) return;
335 control->priv->zoom = zoom;
336 g_object_notify (G_OBJECT (control), "zoom");
340 ephy_zoom_control_get_zoom_level (EphyZoomControl *control)
342 g_return_val_if_fail (EPHY_IS_ZOOM_CONTROL (control), 1.0);
344 return control->priv->zoom;