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Diffstat (limited to 'lib/widgets/ephy-zoom-action.c')
| -rw-r--r-- | lib/widgets/ephy-zoom-action.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/lib/widgets/ephy-zoom-action.c b/lib/widgets/ephy-zoom-action.c new file mode 100644 index 000000000..248d6c74e --- /dev/null +++ b/lib/widgets/ephy-zoom-action.c @@ -0,0 +1,223 @@ +/* + * Copyright (C) 2003 Marco Pesenti Gritti + * Copyright (C) 2003 Christian Persch + * + * 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, 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. + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "ephy-zoom-action.h" +#include "ephy-zoom-control.h" +#include "ephy-zoom.h" + +#include <glib-object.h> +#include <bonobo/bonobo-i18n.h> + +struct _EphyZoomActionPrivate { + float zoom; +}; + +enum +{ + PROP_0, + PROP_ZOOM +}; + + +static void ephy_zoom_action_init (EphyZoomAction *action); +static void ephy_zoom_action_class_init (EphyZoomActionClass *class); +static void ephy_zoom_action_finalize (GObject *object); + +enum +{ + ZOOM_TO_LEVEL_SIGNAL, + LAST_SIGNAL +}; + +static guint ephy_zoom_action_signals[LAST_SIGNAL] = { 0 }; + +static GObjectClass *parent_class = NULL; + +GType +ephy_zoom_action_get_type (void) +{ + static GType ephy_zoom_action_type = 0; + + if (ephy_zoom_action_type == 0) + { + static const GTypeInfo our_info = + { + sizeof (EphyZoomActionClass), + NULL, /* base_init */ + NULL, /* base_finalize */ + (GClassInitFunc) ephy_zoom_action_class_init, + NULL, + NULL, /* class_data */ + sizeof (EphyZoomAction), + 0, /* n_preallocs */ + (GInstanceInitFunc) ephy_zoom_action_init, + }; + + ephy_zoom_action_type = g_type_register_static (EGG_TYPE_ACTION, + "EphyZoomAction", + &our_info, 0); + } + + return ephy_zoom_action_type; +} + +static void +zoom_to_level_cb (EphyZoomControl *control, + float zoom, + EphyZoomAction *action) +{ + g_signal_emit (action, + ephy_zoom_action_signals[ZOOM_TO_LEVEL_SIGNAL], + 0, zoom); +} + +static void +sync_zoom_cb (EggAction *action, GParamSpec *pspec, GtkWidget *proxy) +{ + EphyZoomAction *zoom_action = EPHY_ZOOM_ACTION (action); + + g_object_set (G_OBJECT (proxy), "zoom", zoom_action->priv->zoom, NULL); +} + +static void +connect_proxy (EggAction *action, GtkWidget *proxy) +{ + g_signal_connect_object (action, "notify::zoom", + G_CALLBACK (sync_zoom_cb), proxy, 0); + + g_signal_connect (proxy, "zoom_to_level", GTK_SIGNAL_FUNC(zoom_to_level_cb), action); + + EGG_ACTION_CLASS (parent_class)->connect_proxy (action, proxy); +} + +static void +ephy_zoom_action_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + EphyZoomAction *action; + + action = EPHY_ZOOM_ACTION (object); + + switch (prop_id) + { + case PROP_ZOOM: + action->priv->zoom = g_value_get_float (value); + g_object_notify (object, "zoom"); + break; + } +} + +static void +ephy_zoom_action_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + EphyZoomAction *action; + + action = EPHY_ZOOM_ACTION (object); + + switch (prop_id) + { + case PROP_ZOOM: + g_value_set_float (value, action->priv->zoom); + break; + } +} + +static void +ephy_zoom_action_class_init (EphyZoomActionClass *class) +{ + EggActionClass *action_class; + GObjectClass *object_class = G_OBJECT_CLASS (class); + + object_class->set_property = ephy_zoom_action_set_property; + object_class->get_property = ephy_zoom_action_get_property; + object_class->finalize = ephy_zoom_action_finalize; + + parent_class = g_type_class_peek_parent (class); + action_class = EGG_ACTION_CLASS (class); + + action_class->toolbar_item_type = EPHY_TYPE_ZOOM_CONTROL; + action_class->connect_proxy = connect_proxy; + + g_object_class_install_property (object_class, + PROP_ZOOM, + g_param_spec_float ("zoom", + "Zoom", + "Zoom", + ZOOM_MINIMAL, + ZOOM_MAXIMAL, + 1.0, + G_PARAM_READWRITE)); + + ephy_zoom_action_signals[ZOOM_TO_LEVEL_SIGNAL] = + g_signal_new ("zoom_to_level", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (EphyZoomActionClass, zoom_to_level), + NULL, NULL, + g_cclosure_marshal_VOID__FLOAT, + G_TYPE_NONE, + 1, + G_TYPE_FLOAT); +} + +static void +ephy_zoom_action_init (EphyZoomAction *action) +{ + action->priv = g_new0 (EphyZoomActionPrivate, 1); + + action->priv->zoom = 1.0; +} + +static void +ephy_zoom_action_finalize (GObject *object) +{ + EphyZoomAction *action = EPHY_ZOOM_ACTION (object); + + g_free (action->priv); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +void +ephy_zoom_action_set_zoom_level (EphyZoomAction *action, float zoom) +{ + g_return_if_fail (EPHY_IS_ZOOM_ACTION (action)); + + if (zoom < ZOOM_MINIMAL || zoom > ZOOM_MAXIMAL) return; + + action->priv->zoom = zoom; + g_object_notify (G_OBJECT (action), "zoom"); +} + +float +ephy_zoom_action_get_zoom_level (EphyZoomAction *action) +{ + g_return_val_if_fail (EPHY_IS_ZOOM_ACTION (action), 1.0); + + return action->priv->zoom; +} |