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gtk-demo: A better overlay demo

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This shows the new passthrough feature.
This commit is contained in:
Matthias Clasen
2015-06-19 18:13:34 -04:00
parent d4b0694c02
commit afd75070a2
1 changed files with 50 additions and 145 deletions
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195
demos/gtk-demo/overlay.c
View File

@ -1,10 +1,16 @@
/* Overlay
*
* Stack widgets in static positions over a main widget
* Stack widgets in static positions over a main widget.
*/
#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)
{
@ -12,158 +18,57 @@ do_overlay (GtkWidget *do_widget)
if (!window)
{
GtkWidget *view;
GtkWidget *sw;
GtkWidget *overlay;
GtkWidget *entry;
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_screen (GTK_WINDOW (window),
gtk_widget_get_screen (do_widget));
gtk_window_set_default_size (GTK_WINDOW (window),
450, 450);
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_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_start (label, 20);
gtk_widget_set_margin_end (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_start (label, 20);
gtk_widget_set_margin_end (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_start (label, 20);
gtk_widget_set_margin_end (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_start (label, 20);
gtk_widget_set_margin_end (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_start (label, 20);
gtk_widget_set_margin_end (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_start (label, 20);
gtk_widget_set_margin_end (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_start (label, 20);
gtk_widget_set_margin_end (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_start (label, 10);
gtk_widget_set_margin_end (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);
}