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/* Overlay
*
* Stack widgets in static positions over a main widget
*/
#include <gtk/gtk.h>
GtkWidget *
do_overlay (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
if (!window)
{
GtkWidget *view;
GtkWidget *sw;
GtkWidget *overlay;
GtkWidget *entry;
GtkWidget *label;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_screen (GTK_WINDOW (window),
gtk_widget_get_screen (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), "Overlay");
gtk_container_set_border_width (GTK_CONTAINER (window), 0);
view = gtk_text_view_new ();
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_container_add (GTK_CONTAINER (sw), view);
overlay = gtk_overlay_new ();
gtk_container_add (GTK_CONTAINER (overlay), sw);
gtk_container_add (GTK_CONTAINER (window), overlay);
entry = gtk_entry_new ();
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), entry);
gtk_widget_set_halign (entry, GTK_ALIGN_END);
gtk_widget_set_valign (entry, GTK_ALIGN_END);
label = gtk_label_new ("Hello world");
gtk_widget_set_halign (label, GTK_ALIGN_END);
gtk_widget_set_valign (label, GTK_ALIGN_END);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
gtk_widget_set_margin_left (label, 20);
gtk_widget_set_margin_right (label, 20);
gtk_widget_set_margin_top (label, 5);
gtk_widget_set_margin_bottom (label, 5);
entry = gtk_entry_new ();
gtk_widget_set_halign (entry, GTK_ALIGN_START);
gtk_widget_set_valign (entry, GTK_ALIGN_END);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), entry);
label = gtk_label_new ("Hello world");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_END);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
gtk_widget_set_margin_left (label, 20);
gtk_widget_set_margin_right (label, 20);
gtk_widget_set_margin_top (label, 5);
gtk_widget_set_margin_bottom (label, 5);
entry = gtk_entry_new ();
gtk_widget_set_halign (entry, GTK_ALIGN_END);
gtk_widget_set_valign (entry, GTK_ALIGN_START);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), entry);
label = gtk_label_new ("Hello world");
gtk_widget_set_halign (label, GTK_ALIGN_END);
gtk_widget_set_valign (label, GTK_ALIGN_START);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
gtk_widget_set_margin_left (label, 20);
gtk_widget_set_margin_right (label, 20);
gtk_widget_set_margin_top (label, 5);
gtk_widget_set_margin_bottom (label, 5);
entry = gtk_entry_new ();
gtk_widget_set_halign (entry, GTK_ALIGN_START);
gtk_widget_set_valign (entry, GTK_ALIGN_START);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), entry);
label = gtk_label_new ("Hello world");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_START);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
gtk_widget_set_margin_left (label, 20);
gtk_widget_set_margin_right (label, 20);
gtk_widget_set_margin_top (label, 5);
gtk_widget_set_margin_bottom (label, 5);
entry = gtk_entry_new ();
gtk_widget_set_halign (entry, GTK_ALIGN_END);
gtk_widget_set_valign (entry, GTK_ALIGN_CENTER);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), entry);
label = gtk_label_new ("Hello world");
gtk_widget_set_halign (label, GTK_ALIGN_END);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
gtk_widget_set_margin_left (label, 20);
gtk_widget_set_margin_right (label, 20);
gtk_widget_set_margin_top (label, 5);
gtk_widget_set_margin_bottom (label, 5);
entry = gtk_entry_new ();
gtk_widget_set_halign (entry, GTK_ALIGN_START);
gtk_widget_set_valign (entry, GTK_ALIGN_CENTER);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), entry);
label = gtk_label_new ("Hello world");
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
gtk_widget_set_margin_left (label, 20);
gtk_widget_set_margin_right (label, 20);
gtk_widget_set_margin_top (label, 5);
gtk_widget_set_margin_bottom (label, 5);
entry = gtk_entry_new ();
gtk_widget_set_halign (entry, GTK_ALIGN_CENTER);
gtk_widget_set_valign (entry, GTK_ALIGN_START);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), entry);
label = gtk_label_new ("Hello world");
gtk_widget_set_halign (label, GTK_ALIGN_CENTER);
gtk_widget_set_valign (label, GTK_ALIGN_START);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
gtk_widget_set_margin_left (label, 20);
gtk_widget_set_margin_right (label, 20);
gtk_widget_set_margin_top (label, 5);
gtk_widget_set_margin_bottom (label, 5);
entry = gtk_entry_new ();
gtk_widget_set_halign (entry, GTK_ALIGN_CENTER);
gtk_widget_set_valign (entry, GTK_ALIGN_END);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), entry);
label = gtk_label_new ("Hello world");
gtk_widget_set_halign (label, GTK_ALIGN_CENTER);
gtk_widget_set_valign (label, GTK_ALIGN_END);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
gtk_widget_set_margin_left (label, 10);
gtk_widget_set_margin_right (label, 10);
gtk_widget_set_margin_top (label, 5);
gtk_widget_set_margin_bottom (label, 5);
entry = gtk_entry_new ();
gtk_widget_set_halign (entry, GTK_ALIGN_CENTER);
gtk_widget_set_valign (entry, GTK_ALIGN_CENTER);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), entry);
label = gtk_label_new ("Hello world");
gtk_widget_set_halign (label, GTK_ALIGN_CENTER);
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
gtk_widget_show_all (overlay);
}
if (!gtk_widget_get_visible (window))
{
gtk_widget_show (window);
}
else
{
gtk_widget_destroy (window);
window = NULL;
}
return window;
}
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