static GtkWidget *volume_constructor(LXPanel *panel, config_setting_t *settings)
{
volume_t *vol;
GtkWidget *p;
GtkAdjustment *vol_adjustment;
vol_before_mute = 1;
curr_volume = 0;
curr_image = NULL;
skip_botton1_event = FALSE;
ENTER;
/* check if OSS mixer device could be open */
mixer_fd = open ("/dev/mixer", O_RDWR, 0);
if (mixer_fd < 0) {
RET(NULL);
}
/* try to obtain current volume */
p = create_volume_window(); /* use pointer */
if (! vol_spin)
goto _error;
vol_adjustment = gtk_spin_button_get_adjustment (vol_spin);
if (! vol_adjustment)
{
_error:
gtk_widget_destroy(p);
RET(NULL);
}
curr_volume = gtk_adjustment_get_value (vol_adjustment);
vol = g_new0(volume_t, 1);
vol->dlg = p; /* it was reused */
p = gtk_event_box_new();
lxpanel_plugin_set_data(p, vol, volume_destructor);
vol->panel = panel;
gtk_widget_add_events(p, GDK_BUTTON_PRESS_MASK);
g_signal_connect(p, "scroll-event", G_CALLBACK(on_mouse_scroll), vol);
gtk_widget_set_size_request(p, panel_get_icon_size(panel), panel_get_icon_size(panel));
update_icon(p, vol);
gtk_widget_destroy( vol->dlg );
vol->dlg = NULL;
/* FIXME: display current level in tooltip. ex: "Volume Control: 80%" */
gtk_widget_set_tooltip_text(p, _("Volume control"));
RET(p);
}
static void update_icon (GtkWidget *p, volume_t *vol)
{
GdkPixbuf *icon;
GtkWidget *image;
GtkIconTheme* theme;
GtkIconInfo* info;
int icon_size;
theme = panel_get_icon_theme(vol->panel);
icon_size = panel_get_icon_size(vol->panel);
if (curr_volume <= 0) {
info = gtk_icon_theme_lookup_icon( theme, "stock_volume-mute", icon_size, 0 );
}
else if (curr_volume > 0 && curr_volume <= 50) {
info = gtk_icon_theme_lookup_icon( theme, "stock_volume-min", icon_size, 0 );
}
else if (curr_volume > 50 && curr_volume <= 75) {
info = gtk_icon_theme_lookup_icon( theme, "stock_volume-med", icon_size, 0 );
}
else /* curr_volume > 75 */ {
info = gtk_icon_theme_lookup_icon( theme, "stock_volume-max", icon_size, 0 );
}
if (info ) {
icon = gdk_pixbuf_new_from_file_at_size(
gtk_icon_info_get_filename( info ),
icon_size, icon_size, NULL );
gtk_icon_info_free( info );
}
else {
icon = gdk_pixbuf_new_from_xpm_data((const char **) volume_xpm);
}
if (icon) {
if (curr_image) {
gtk_widget_destroy(curr_image);
curr_image = NULL;
}
image = gtk_image_new_from_pixbuf(icon);
gtk_container_add(GTK_CONTAINER(p), image);
curr_image = image;
}
gtk_widget_show_all(p);
return;
}
/* Callback when panel configuration changes. */
static void wincmd_panel_reconfigure(LXPanel *panel, GtkWidget *p)
{
WinCmdPlugin * wc = lxpanel_plugin_get_data(p);
lxpanel_button_set_icon(p, wc->image, panel_get_icon_size(panel));
}