1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
/*
Copyright 2010 Canonical Ltd.
Authors:
Conor Curran <conor.curran@canonical.com>
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License version 3, as published
by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranties of
MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib/gi18n.h>
#include <math.h>
#include <glib.h>
#include "volume-widget.h"
#include "common-defs.h"
#include <libido/idoscalemenuitem.h>
typedef struct _VolumeWidgetPrivate VolumeWidgetPrivate;
struct _VolumeWidgetPrivate
{
DbusmenuMenuitem* twin_item;
GtkWidget* ido_volume_slider;
gboolean grabbed;
};
#define VOLUME_WIDGET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), VOLUME_WIDGET_TYPE, VolumeWidgetPrivate))
/* Prototypes */
static void volume_widget_class_init (VolumeWidgetClass *klass);
static void volume_widget_init (VolumeWidget *self);
static void volume_widget_dispose (GObject *object);
static void volume_widget_finalize (GObject *object);
static void volume_widget_set_twin_item( VolumeWidget* self,
DbusmenuMenuitem* twin_item);
static void volume_widget_property_update( DbusmenuMenuitem* item, gchar* property,
GValue* value, gpointer userdata);
static gboolean volume_widget_change_value_cb (GtkRange *range,
GtkScrollType scroll,
gdouble value,
gpointer user_data);
static gboolean volume_widget_value_changed_cb(GtkRange *range, gpointer user_data);
static void volume_widget_slider_grabbed(GtkWidget *widget, gpointer user_data);
static void volume_widget_slider_released(GtkWidget *widget, gpointer user_data);
static void volume_widget_parent_changed (GtkWidget *widget, gpointer user_data);
G_DEFINE_TYPE (VolumeWidget, volume_widget, G_TYPE_OBJECT);
static void
volume_widget_class_init (VolumeWidgetClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (VolumeWidgetPrivate));
gobject_class->dispose = volume_widget_dispose;
gobject_class->finalize = volume_widget_finalize;
}
static void
volume_widget_init (VolumeWidget *self)
{
g_debug("VolumeWidget::volume_widget_init");
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(self);
priv->ido_volume_slider = ido_scale_menu_item_new_with_range ("VOLUME", IDO_RANGE_STYLE_DEFAULT, 0, 0, 100, 1);
g_object_ref (priv->ido_volume_slider);
ido_scale_menu_item_set_style (IDO_SCALE_MENU_ITEM (priv->ido_volume_slider), IDO_SCALE_MENU_ITEM_STYLE_IMAGE);
g_object_set(priv->ido_volume_slider, "reverse-scroll-events", TRUE, NULL);
g_signal_connect (priv->ido_volume_slider,
"notify::parent", G_CALLBACK (volume_widget_parent_changed),
NULL);
GtkWidget* volume_widget = ido_scale_menu_item_get_scale((IdoScaleMenuItem*)priv->ido_volume_slider);
g_signal_connect(volume_widget, "change-value", G_CALLBACK(volume_widget_change_value_cb), self);
g_signal_connect(volume_widget, "value-changed", G_CALLBACK(volume_widget_value_changed_cb), self);
g_signal_connect(priv->ido_volume_slider, "slider-grabbed", G_CALLBACK(volume_widget_slider_grabbed), self);
g_signal_connect(priv->ido_volume_slider, "slider-released", G_CALLBACK(volume_widget_slider_released), self);
GtkWidget* primary_image = ido_scale_menu_item_get_primary_image((IdoScaleMenuItem*)priv->ido_volume_slider);
GIcon * primary_gicon = g_themed_icon_new_with_default_fallbacks("audio-volume-low-zero-panel");
gtk_image_set_from_gicon(GTK_IMAGE(primary_image), primary_gicon, GTK_ICON_SIZE_MENU);
g_object_unref(primary_gicon);
GtkWidget* secondary_image = ido_scale_menu_item_get_secondary_image((IdoScaleMenuItem*)priv->ido_volume_slider);
GIcon * secondary_gicon = g_themed_icon_new_with_default_fallbacks("audio-volume-high-panel");
gtk_image_set_from_gicon(GTK_IMAGE(secondary_image), secondary_gicon, GTK_ICON_SIZE_MENU);
g_object_unref(secondary_gicon);
GtkAdjustment *adj = gtk_range_get_adjustment (GTK_RANGE (volume_widget));
gtk_adjustment_set_step_increment(adj, 4);
}
static void
volume_widget_dispose (GObject *object)
{
G_OBJECT_CLASS (volume_widget_parent_class)->dispose (object);
}
static void
volume_widget_finalize (GObject *object)
{
G_OBJECT_CLASS (volume_widget_parent_class)->finalize (object);
}
static void
volume_widget_property_update(DbusmenuMenuitem* item, gchar* property,
GValue* value, gpointer userdata)
{
g_return_if_fail (IS_VOLUME_WIDGET (userdata));
VolumeWidget* mitem = VOLUME_WIDGET(userdata);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
g_debug("scrub-widget::property_update for prop %s", property);
if(g_ascii_strcasecmp(DBUSMENU_VOLUME_MENUITEM_LEVEL, property) == 0){
if(priv->grabbed == FALSE){
GtkWidget *slider = ido_scale_menu_item_get_scale((IdoScaleMenuItem*)priv->ido_volume_slider);
GtkRange *range = (GtkRange*)slider;
gdouble update = g_value_get_double (value);
g_debug("volume-widget - update level with value %f", update);
gtk_range_set_value(range, update);
determine_state_from_volume(update);
}
}
}
static void
volume_widget_set_twin_item(VolumeWidget* self,
DbusmenuMenuitem* twin_item)
{
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(self);
priv->twin_item = twin_item;
g_object_ref(priv->twin_item);
g_signal_connect(G_OBJECT(twin_item), "property-changed",
G_CALLBACK(volume_widget_property_update), self);
gdouble initial_level = g_value_get_double (dbusmenu_menuitem_property_get_value(twin_item,
DBUSMENU_VOLUME_MENUITEM_LEVEL));
g_debug("volume_widget_set_twin_item initial level = %f", initial_level);
GtkWidget *slider = ido_scale_menu_item_get_scale((IdoScaleMenuItem*)priv->ido_volume_slider);
GtkRange *range = (GtkRange*)slider;
gtk_range_set_value(range, initial_level);
determine_state_from_volume(initial_level);
}
static gboolean
volume_widget_change_value_cb (GtkRange *range,
GtkScrollType scroll,
gdouble new_value,
gpointer user_data)
{
g_return_val_if_fail (IS_VOLUME_WIDGET (user_data), FALSE);
VolumeWidget* mitem = VOLUME_WIDGET(user_data);
volume_widget_update(mitem, new_value);
determine_state_from_volume(new_value);
return FALSE;
}
/*
We only want this callback to catch mouse icon press events
which set the slider to 0 or 100. Ignore all other events.
*/
static gboolean
volume_widget_value_changed_cb(GtkRange *range, gpointer user_data)
{
g_return_val_if_fail (IS_VOLUME_WIDGET (user_data), FALSE);
VolumeWidget* mitem = VOLUME_WIDGET(user_data);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
GtkWidget *slider = ido_scale_menu_item_get_scale((IdoScaleMenuItem*)priv->ido_volume_slider);
gdouble current_value = CLAMP(gtk_range_get_value(GTK_RANGE(slider)), 0, 100);
if(current_value == 0 || current_value == 100){
volume_widget_update(mitem, current_value);
}
return FALSE;
}
void
volume_widget_update(VolumeWidget* self, gdouble update)
{
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(self);
GValue value = {0};
g_value_init(&value, G_TYPE_DOUBLE);
gdouble clamped = CLAMP(update, 0, 100);
g_value_set_double(&value, clamped);
dbusmenu_menuitem_handle_event (priv->twin_item, "update", &value, 0);
}
GtkWidget*
volume_widget_get_ido_slider(VolumeWidget* self)
{
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(self);
return priv->ido_volume_slider;
}
static void
volume_widget_parent_changed (GtkWidget *widget,
gpointer user_data)
{
gtk_widget_set_size_request (widget, 200, -1);
g_debug("volume_widget_parent_changed");
}
static void
volume_widget_slider_grabbed(GtkWidget *widget, gpointer user_data)
{
VolumeWidget* mitem = VOLUME_WIDGET(user_data);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
priv->grabbed = TRUE;
}
static void
volume_widget_slider_released(GtkWidget *widget, gpointer user_data)
{
VolumeWidget* mitem = VOLUME_WIDGET(user_data);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
priv->grabbed = FALSE;
}
void
volume_widget_tidy_up (GtkWidget *widget)
{
VolumeWidget* mitem = VOLUME_WIDGET(widget);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
gtk_widget_destroy (priv->ido_volume_slider);
}
gdouble
volume_widget_get_current_volume ( GtkWidget *widget )
{
VolumeWidget* mitem = VOLUME_WIDGET(widget);
VolumeWidgetPrivate * priv = VOLUME_WIDGET_GET_PRIVATE(mitem);
gdouble vol = g_value_get_double ( dbusmenu_menuitem_property_get_value( priv->twin_item,
DBUSMENU_VOLUME_MENUITEM_LEVEL));
return vol;
}
/**
* volume_widget_new:
* @returns: a new #VolumeWidget.
**/
GtkWidget*
volume_widget_new(DbusmenuMenuitem *item)
{
GtkWidget* widget = g_object_new(VOLUME_WIDGET_TYPE, NULL);
volume_widget_set_twin_item((VolumeWidget*)widget, item);
return widget;
}
|