gtk2/demos/gtk-demo/transparent.c
Benjamin Otte 07164e098a window: Turn gtk_window_set_screen() into gtk_window_set_display()
And have a priv->display instead of a priv->screen.

Includes turning gtk_menu_set_screen() into gtk_menu_set_display(),
because that function just forwards to its window.
2017-10-31 08:25:37 +01:00

77 lines
2.5 KiB
C

/* Overlay/Transparency
*
* Blur the background behind an overlay.
*/
#include <gtk/gtk.h>
GtkWidget *
do_transparent (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
if (!window)
{
GtkWidget *sw;
GtkWidget *overlay;
GtkWidget *button;
GtkWidget *label;
GtkWidget *box;
GtkWidget *image;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_default_size (GTK_WINDOW (window), 450, 450);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
gtk_window_set_title (GTK_WINDOW (window), "Transparency");
overlay = gtk_overlay_new ();
gtk_container_add (GTK_CONTAINER (window), overlay);
button = gtk_button_new_with_label ("Don't click this button!");
label = gtk_bin_get_child (GTK_BIN (button));
g_object_set (label, "margin", 50, NULL);
gtk_widget_set_opacity (button, 0.7);
gtk_widget_set_halign (button, GTK_ALIGN_FILL);
gtk_widget_set_valign (button, GTK_ALIGN_START);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), button);
gtk_container_child_set (GTK_CONTAINER (overlay), button, "blur", 5.0, NULL);
button = gtk_button_new_with_label ("Maybe this one?");
label = gtk_bin_get_child (GTK_BIN (button));
g_object_set (label, "margin", 50, NULL);
gtk_widget_set_opacity (button, 0.7);
gtk_widget_set_halign (button, GTK_ALIGN_FILL);
gtk_widget_set_valign (button, GTK_ALIGN_END);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), button);
gtk_container_child_set (GTK_CONTAINER (overlay), button, "blur", 5.0, NULL);
sw = gtk_scrolled_window_new (NULL, NULL);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_container_add (GTK_CONTAINER (overlay), sw);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (sw), box);
image = gtk_image_new_from_resource ("/transparent/portland-rose.jpg");
gtk_container_add (GTK_CONTAINER (box), image);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}