2 #include "ghbcompositor.h"
4 // GhbCompositor example
6 main(gint argc, gchar *argv[])
21 gtk_init(&argc, &argv);
23 // Make the top level window
24 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
26 // Only widgets that have a GdkDrawing area can be composited
27 // These would be GtkEventBox or GtkDrawingArea
28 // Create the widgets that will be composited
29 eb_bottom = gtk_event_box_new();
30 eb_top1 = gtk_event_box_new();
31 eb_top2 = gtk_event_box_new();
32 eb_top3 = gtk_event_box_new();
34 // Create the compositor
35 blender = ghb_compositor_new();
37 // Create an button to put on the bottom layer
38 bottom = gtk_button_new_with_label("Bottom");
39 image = gtk_image_new_from_stock("gtk-help", 6);
40 gtk_button_set_image(GTK_BUTTON(bottom), image);
42 // The button must be placed inside an event box since
43 // buttons do not have their own window.
44 gtk_container_add(GTK_CONTAINER(eb_bottom), bottom);
46 // Create the buttons that will be visible on the top layer
47 top1 = gtk_button_new_with_label("Top 1");
48 top2 = gtk_button_new_with_label("Top 2");
49 top3 = gtk_button_new_with_label("Top 3");
51 // The buttons must be placed inside an event box since
52 // buttons do not have their own window.
53 gtk_container_add(GTK_CONTAINER(eb_top1), top1);
54 gtk_container_add(GTK_CONTAINER(eb_top2), top2);
55 gtk_container_add(GTK_CONTAINER(eb_top3), top3);
57 // Create the table that will be the top layer
58 // Using a layout widget gives flexibility in the layout of the layer
59 table = gtk_table_new(3, 3, TRUE);
60 gtk_table_attach(GTK_TABLE(table), eb_top1, 0, 1, 0, 1, 0, 0, 0, 0);
61 gtk_table_attach(GTK_TABLE(table), eb_top2, 1, 2, 1, 2, 0, 0, 0, 0);
62 gtk_table_attach(GTK_TABLE(table), eb_top3, 2, 3, 2, 3, 0, 0, 0, 0);
64 // Add the blender to the main window.
65 gtk_container_add(GTK_CONTAINER(window), blender);
67 // Set the blenders zlist, with opacity values
68 // Bottom layer is opaque, top layer 60%
69 ghb_compositor_zlist_insert(GHB_COMPOSITOR(blender), eb_bottom, 1, 1);
70 ghb_compositor_zlist_insert(GHB_COMPOSITOR(blender), table, 2, 0.6);
73 gtk_widget_show_all(window);