int
main ()
{
GtkWidget *window, *vbox, *hbox, *w, *scrolled_win;
GtkWidget *label, *entry, *textview;
GtkTextBuffer *buffer;
GooCanvasItem *root, *witem;
/* Initialize GTK+. */
gtk_init ();
/* Create the window and widgets. */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size (GTK_WINDOW (window), 640, 600);
gtk_widget_show (window);
g_signal_connect (window, "delete_event", G_CALLBACK (on_delete_event),
NULL);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
g_object_set (vbox, "margin", 4, NULL);
gtk_widget_show (vbox);
gtk_container_add (GTK_CONTAINER (window), vbox);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
gtk_box_pack_start (GTK_BOX (vbox), hbox);
gtk_widget_show (hbox);
w = gtk_button_new_with_label ("Add Widget");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (add_widget_clicked), NULL);
w = gtk_button_new_with_label ("Remove Widget");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (remove_widget_clicked), NULL);
w = gtk_button_new_with_label ("Move Widget");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (move_widget_clicked), NULL);
w = gtk_button_new_with_label ("Change Anchor");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (change_anchor_clicked), NULL);
w = gtk_button_new_with_label ("Change Widget");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (change_widget_clicked), NULL);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
gtk_box_pack_start (GTK_BOX (vbox), hbox);
gtk_widget_show (hbox);
w = gtk_button_new_with_label ("Hide Canvas");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (hide_canvas_clicked), NULL);
w = gtk_button_new_with_label ("Show Canvas");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (show_canvas_clicked), NULL);
w = gtk_button_new_with_label ("Hide Item");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (hide_item_clicked), NULL);
w = gtk_button_new_with_label ("Show Item");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (show_item_clicked), NULL);
w = gtk_button_new_with_label ("Change Transform");
gtk_box_pack_start (GTK_BOX (hbox), w);
gtk_widget_show (w);
g_signal_connect (w, "clicked", G_CALLBACK (change_transform_clicked), NULL);
scrolled_win = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_win),
GTK_SHADOW_IN);
gtk_widget_show (scrolled_win);
gtk_box_pack_start (GTK_BOX (vbox), scrolled_win);
gtk_widget_set_halign (scrolled_win, GTK_ALIGN_FILL);
gtk_widget_set_valign (scrolled_win, GTK_ALIGN_FILL);
gtk_widget_set_hexpand (scrolled_win, TRUE);
gtk_widget_set_vexpand (scrolled_win, TRUE);
canvas = goo_canvas_new ();
gtk_widget_set_can_focus (canvas, TRUE);
gtk_widget_set_size_request (canvas, 600, 450);
goo_canvas_set_bounds (GOO_CANVAS (canvas), 0, 0, 1000, 1000);
gtk_container_add (GTK_CONTAINER (scrolled_win), canvas);
root = goo_canvas_get_root_item (GOO_CANVAS (canvas));
/* Add a few simple items. */
label = gtk_label_new ("Hello World");
witem = goo_canvas_widget_new (root, label, 50, 50, 200, 100, NULL);
g_object_set_data (G_OBJECT (witem), "id", "hello");
entry = gtk_entry_new ();
move_item = goo_canvas_widget_new (root, entry, 50, 250, 200, 50, NULL);
g_object_set_data (G_OBJECT (move_item), "id", "entry1");
entry = gtk_entry_new ();
gtk_entry_set_text (GTK_ENTRY (entry), "Size: -1 x -1");
witem = goo_canvas_widget_new (root, entry, 50, 300, -1, -1, NULL);
g_object_set_data (G_OBJECT (witem), "id", "entry2");
entry = gtk_entry_new ();
gtk_entry_set_text (GTK_ENTRY (entry), "Size: 100 x -1");
witem = goo_canvas_widget_new (root, entry, 50, 350, 100, -1, NULL);
g_object_set_data (G_OBJECT (witem), "id", "entry3");
/* Use a textview so we can see the width & height of the widget. */
scrolled_win = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_win),
GTK_SHADOW_IN);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
GTK_POLICY_NEVER, GTK_POLICY_NEVER);
textview = gtk_text_view_new ();
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (textview));
gtk_text_buffer_set_text (GTK_TEXT_BUFFER (buffer), "Size: -1 x 100", -1);
gtk_widget_show (textview);
gtk_container_add (GTK_CONTAINER (scrolled_win), textview);
gtk_widget_set_size_request (scrolled_win, 160, 50);
witem = goo_canvas_widget_new (root, scrolled_win, 50, 400, -1, 100, NULL);
g_object_set_data (G_OBJECT (witem), "id", "scrolledwin");
/* Create a vbox item with several child entry widgets to check focus
traversal.*/
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
entry = gtk_entry_new ();
gtk_widget_show (entry);
gtk_box_pack_start (GTK_BOX (vbox), entry);
entry = gtk_entry_new ();
gtk_widget_show (entry);
gtk_box_pack_start (GTK_BOX (vbox), entry);
entry = gtk_entry_new ();
gtk_widget_show (entry);
gtk_box_pack_start (GTK_BOX (vbox), entry);
witem = goo_canvas_widget_new (root, vbox, 50, 600, -1, -1, NULL);
g_object_set_data (G_OBJECT (witem), "id", "vbox");
/* Create a few normal canvas items that take keyboard focus. */
create_focus_box (canvas, 110, 80, 50, 30, "red");
create_focus_box (canvas, 300, 160, 50, 30, "orange");
create_focus_box (canvas, 500, 50, 50, 30, "yellow");
gtk_widget_show (canvas);
/* Pass control to the GTK+ main event loop. */
gtk_main ();
return 0;
}
static void
setup_canvas (GtkWidget *canvas)
{
GooCanvasItemModel *root;
root = goo_canvas_group_model_new (NULL, NULL);
goo_canvas_set_root_item_model (GOO_CANVAS (canvas), root);
g_object_unref (root);
create_focus_box (canvas, 110, 80, 50, 30, "red");
create_focus_box (canvas, 300, 160, 50, 30, "orange");
create_focus_box (canvas, 500, 50, 50, 30, "yellow");
create_focus_box (canvas, 70, 400, 50, 30, "blue");
create_focus_box (canvas, 130, 200, 50, 30, "magenta");
create_focus_box (canvas, 200, 160, 50, 30, "green");
create_focus_box (canvas, 450, 450, 50, 30, "cyan");
create_focus_box (canvas, 300, 350, 50, 30, "grey");
create_focus_box (canvas, 900, 900, 50, 30, "gold");
create_focus_box (canvas, 800, 150, 50, 30, "thistle");
create_focus_box (canvas, 600, 800, 50, 30, "azure");
create_focus_box (canvas, 700, 250, 50, 30, "moccasin");
create_focus_box (canvas, 500, 100, 50, 30, "cornsilk");
create_focus_box (canvas, 200, 750, 50, 30, "plum");
create_focus_box (canvas, 400, 800, 50, 30, "orchid");
}
