forked from AuroraMiddleware/gtk
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/* Layout Manager/Transition
|
||
* #Keywords: GtkLayoutManager
|
||
*
|
||
* This demo shows a simple example of a custom layout manager
|
||
* and a widget using it. The layout manager places the children
|
||
* of the widget in a grid or a circle.
|
||
*
|
||
* The widget is animating the transition between the two layouts.
|
||
*
|
||
* Click to start the transition.
|
||
*/
|
||
|
||
#include <gtk/gtk.h>
|
||
|
||
#include "demowidget.h"
|
||
#include "demochild.h"
|
||
|
||
|
||
GtkWidget *
|
||
do_layoutmanager (GtkWidget *parent)
|
||
{
|
||
static GtkWidget *window = NULL;
|
||
|
||
if (!window)
|
||
{
|
||
GtkWidget *widget;
|
||
GtkWidget *child;
|
||
const char *color[] = {
|
||
"red", "orange", "yellow", "green",
|
||
"blue", "grey", "magenta", "lime",
|
||
"yellow", "firebrick", "aqua", "purple",
|
||
"tomato", "pink", "thistle", "maroon"
|
||
};
|
||
int i;
|
||
|
||
window = gtk_window_new ();
|
||
gtk_window_set_title (GTK_WINDOW (window), "Layout Manager — Transition");
|
||
gtk_window_set_default_size (GTK_WINDOW (window), 600, 600);
|
||
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
|
||
|
||
widget = demo_widget_new ();
|
||
|
||
for (i = 0; i < 16; i++)
|
||
{
|
||
child = demo_child_new (color[i]);
|
||
gtk_widget_set_margin_start (child, 4);
|
||
gtk_widget_set_margin_end (child, 4);
|
||
gtk_widget_set_margin_top (child, 4);
|
||
gtk_widget_set_margin_bottom (child, 4);
|
||
demo_widget_add_child (DEMO_WIDGET (widget), child);
|
||
}
|
||
|
||
gtk_window_set_child (GTK_WINDOW (window), widget);
|
||
}
|
||
|
||
if (!gtk_widget_get_visible (window))
|
||
gtk_widget_set_visible (window, TRUE);
|
||
else
|
||
gtk_window_destroy (GTK_WINDOW (window));
|
||
|
||
return window;
|
||
|
||
}
|