forked from AuroraMiddleware/gtk
609e04ddcf
Clean up the code of many examples in minor ways, fix some memory leaks, and avoid the use of dialogs where a regular toplevel works just as well.
86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/* Overlay
|
|
*
|
|
* Shows widgets in static positions over a main widget.
|
|
*
|
|
* The overlayed widgets can be interactive controls such
|
|
* as the entry in this example, or just decorative, like
|
|
* the big blue label.
|
|
*/
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
static void
|
|
do_number (GtkButton *button, GtkEntry *entry)
|
|
{
|
|
gtk_entry_set_text (entry, gtk_button_get_label (button));
|
|
}
|
|
|
|
GtkWidget *
|
|
do_overlay (GtkWidget *do_widget)
|
|
{
|
|
static GtkWidget *window = NULL;
|
|
|
|
if (!window)
|
|
{
|
|
GtkWidget *overlay;
|
|
GtkWidget *grid;
|
|
GtkWidget *button;
|
|
GtkWidget *vbox;
|
|
GtkWidget *label;
|
|
GtkWidget *entry;
|
|
int i, j;
|
|
char *text;
|
|
|
|
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
|
|
gtk_window_set_default_size (GTK_WINDOW (window), 500, 510);
|
|
gtk_window_set_title (GTK_WINDOW (window), "Overlay");
|
|
|
|
overlay = gtk_overlay_new ();
|
|
grid = gtk_grid_new ();
|
|
gtk_container_add (GTK_CONTAINER (overlay), grid);
|
|
|
|
entry = gtk_entry_new ();
|
|
|
|
for (j = 0; j < 5; j++)
|
|
{
|
|
for (i = 0; i < 5; i++)
|
|
{
|
|
text = g_strdup_printf ("%d", 5*j + i);
|
|
button = gtk_button_new_with_label (text);
|
|
g_free (text);
|
|
gtk_widget_set_hexpand (button, TRUE);
|
|
gtk_widget_set_vexpand (button, TRUE);
|
|
g_signal_connect (button, "clicked", G_CALLBACK (do_number), entry);
|
|
gtk_grid_attach (GTK_GRID (grid), button, i, j, 1, 1);
|
|
}
|
|
}
|
|
|
|
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
|
|
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), vbox);
|
|
gtk_overlay_set_overlay_pass_through (GTK_OVERLAY (overlay), vbox, TRUE);
|
|
gtk_widget_set_halign (vbox, GTK_ALIGN_CENTER);
|
|
gtk_widget_set_valign (vbox, GTK_ALIGN_CENTER);
|
|
|
|
label = gtk_label_new ("<span foreground='blue' weight='ultrabold' font='40'>Numbers</span>");
|
|
gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
|
|
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 8);
|
|
|
|
gtk_entry_set_placeholder_text (GTK_ENTRY (entry), "Your Lucky Number");
|
|
gtk_box_pack_start (GTK_BOX (vbox), entry, FALSE, FALSE, 8);
|
|
|
|
gtk_container_add (GTK_CONTAINER (window), overlay);
|
|
|
|
g_signal_connect (window, "destroy",
|
|
G_CALLBACK (gtk_widget_destroyed), &window);
|
|
|
|
gtk_widget_show_all (overlay);
|
|
}
|
|
|
|
if (!gtk_widget_get_visible (window))
|
|
gtk_widget_show (window);
|
|
else
|
|
gtk_widget_destroy (window);
|
|
|
|
return window;
|
|
}
|