mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-15 21:20:09 +00:00
d732c869c2
Add the names of the main widgets as keywords to our demos, but also things like "game". This helps finding relevant demos in our growing list. You can now for example type "label", and find the "error states" and "links" demos showing GtkLabel features.
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/* Overlay/Interactive Overlay
|
|
* #Keywords: GtkOverlay
|
|
*
|
|
* Shows widgets in static positions over a main widget.
|
|
*
|
|
* The overlaid 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_editable_set_text (GTK_EDITABLE (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_set_default_size (GTK_WINDOW (window), 500, 510);
|
|
gtk_window_set_title (GTK_WINDOW (window), "Interactive Overlay");
|
|
|
|
overlay = gtk_overlay_new ();
|
|
grid = gtk_grid_new ();
|
|
gtk_overlay_set_child (GTK_OVERLAY (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_widget_set_can_target (vbox, FALSE);
|
|
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), vbox);
|
|
gtk_widget_set_halign (vbox, GTK_ALIGN_CENTER);
|
|
gtk_widget_set_valign (vbox, GTK_ALIGN_START);
|
|
|
|
label = gtk_label_new ("<span foreground='blue' weight='ultrabold' font='40'>Numbers</span>");
|
|
gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
|
|
gtk_widget_set_can_target (label, FALSE);
|
|
gtk_widget_set_margin_top (label, 8);
|
|
gtk_widget_set_margin_bottom (label, 8);
|
|
gtk_box_append (GTK_BOX (vbox), label);
|
|
|
|
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
|
|
gtk_overlay_add_overlay (GTK_OVERLAY (overlay), vbox);
|
|
gtk_widget_set_halign (vbox, GTK_ALIGN_CENTER);
|
|
gtk_widget_set_valign (vbox, GTK_ALIGN_CENTER);
|
|
|
|
gtk_entry_set_placeholder_text (GTK_ENTRY (entry), "Your Lucky Number");
|
|
gtk_widget_set_margin_top (entry, 8);
|
|
gtk_widget_set_margin_bottom (entry, 8);
|
|
gtk_box_append (GTK_BOX (vbox), entry);
|
|
|
|
gtk_window_set_child (GTK_WINDOW (window), overlay);
|
|
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
|
|
}
|
|
|
|
if (!gtk_widget_get_visible (window))
|
|
gtk_widget_show (window);
|
|
else
|
|
gtk_window_destroy (GTK_WINDOW (window));
|
|
|
|
return window;
|
|
}
|