static void
desktop_cb (GSimpleAction *action,
GVariant *parameter,
gpointer callback_data)
{
GdkScreen *screen;
GdkWindow *root;
GtkWidget *window;
GtkWidget *label;
GdkRGBA desktop_color;
screen = gdk_screen_get_default ();
root = gdk_screen_get_root_window (screen);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
set_gtk_window_type (GTK_WINDOW (window), "_NET_WM_WINDOW_TYPE_DESKTOP");
gtk_window_set_title (GTK_WINDOW (window), "Desktop");
gtk_widget_set_size_request (window,
gdk_window_get_width (root),
gdk_window_get_height (root));
gtk_window_move (GTK_WINDOW (window), 0, 0);
desktop_color.red = 0.32;
desktop_color.green = 0.46;
desktop_color.blue = 0.65;
desktop_color.alpha = 1.0;
override_background_color (window, &desktop_color);
label = focus_label (window);
gtk_container_add (GTK_CONTAINER (window), label);
gtk_widget_show_all (window);
}
/*
* Configure the GtkIconView: background color, visual columns, drag-and-drop,
* and icon activation.
*/
static void
set_up_icon_view(GtkWidget *icons, struct state *d)
{
/* Background color */
GdkRGBA transparent = {0, 0, 0, 0};
override_background_color(icons, &transparent);
/* Columns */
gtk_icon_view_set_text_column(d->icon_view, FILE_NAME);
gtk_icon_view_set_pixbuf_column(d->icon_view, FILE_ICON);
/* Drag */
gtk_drag_source_set(icons, GDK_BUTTON1_MASK,
dnd_targets, TARGET_COUNT,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
gtk_drag_source_add_text_targets(icons);
gtk_drag_source_add_uri_targets(icons);
g_signal_connect(icons, "drag-begin", G_CALLBACK(on_icons_drag_begin), d);
g_signal_connect(icons, "drag-data-get", G_CALLBACK(on_icons_drag_data_get), d);
g_signal_connect(icons, "drag-end", G_CALLBACK(on_icons_drag_end), d);
/* Drop */
gtk_drag_dest_set(icons, GTK_DEST_DEFAULT_ALL,
dnd_targets, TARGET_COUNT,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
gtk_drag_dest_add_text_targets(icons);
gtk_drag_dest_add_uri_targets(icons);
g_signal_connect(icons, "drag-motion", G_CALLBACK(on_icons_drag_motion), d);
g_signal_connect(icons, "drag-leave", G_CALLBACK(on_icons_data_leave), d);
g_signal_connect(icons, "drag-data-received", G_CALLBACK(on_icons_drag_data_received), d);
/* Activations */
g_signal_connect(icons, "item-activated", G_CALLBACK(on_icons_item_activated), d);
g_signal_connect(icons, "button-press-event", G_CALLBACK(on_desktop_icon_button_press_event), d);
}
void MyWidget::on_realize()
{
//Do not call base class Gtk::Widget::on_realize().
//It's intended only for widgets that set_has_window(false).
set_realized();
//Get the themed style from the CSS file:
get_style_property("example_scale", m_scale);
std::cout << "m_scale (example_scale from the theme/css-file) is: "
<< m_scale << std::endl;
if(!m_refGdkWindow)
{
//Create the GdkWindow:
GdkWindowAttr attributes;
memset(&attributes, 0, sizeof(attributes));
Gtk::Allocation allocation = get_allocation();
//Set initial position and size of the Gdk::Window:
attributes.x = allocation.get_x();
attributes.y = allocation.get_y();
attributes.width = allocation.get_width();
attributes.height = allocation.get_height();
attributes.event_mask = get_events () | Gdk::EXPOSURE_MASK;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_OUTPUT;
m_refGdkWindow = Gdk::Window::create(get_parent_window(), &attributes,
GDK_WA_X | GDK_WA_Y);
set_window(m_refGdkWindow);
//set colors
override_background_color(Gdk::RGBA("red"));
override_color(Gdk::RGBA("blue"));
//make the widget receive expose events
m_refGdkWindow->set_user_data(gobj());
}
}
