1#include <gtk/gtk.h>
2
3static void
4on_button_clicked (GtkWidget *widget, gpointer data)
5{
6 g_print (format: "Button %d clicked\n", GPOINTER_TO_INT (data));
7}
8
9static gboolean done = FALSE;
10
11static void
12quit_cb (GtkWidget *widget,
13 gpointer user_data)
14{
15 gboolean *is_done = user_data;
16
17 *is_done = TRUE;
18
19 g_main_context_wakeup (NULL);
20}
21
22static void
23kinetic_scrolling (void)
24{
25 GtkWidget *window, *swindow, *grid;
26 GtkWidget *label;
27 GtkWidget *button_grid, *button;
28 GtkWidget *treeview;
29 GtkCellRenderer *renderer;
30 GtkListStore *store;
31 GtkWidget *textview;
32 GdkContentFormats *targets;
33 int i;
34
35 window = gtk_window_new ();
36 gtk_window_set_default_size (GTK_WINDOW (window), width: 400, height: 400);
37 g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
38
39 grid = gtk_grid_new ();
40
41 label = gtk_label_new (str: "Non scrollable widget using viewport");
42 gtk_grid_attach (GTK_GRID (grid), child: label, column: 0, row: 0, width: 1, height: 1);
43 gtk_widget_set_hexpand (widget: label, TRUE);
44
45 label = gtk_label_new (str: "Scrollable widget: TreeView");
46 gtk_grid_attach (GTK_GRID (grid), child: label, column: 1, row: 0, width: 1, height: 1);
47 gtk_widget_set_hexpand (widget: label, TRUE);
48
49 label = gtk_label_new (str: "Scrollable widget: TextView");
50 gtk_grid_attach (GTK_GRID (grid), child: label, column: 2, row: 0, width: 1, height: 1);
51 gtk_widget_set_hexpand (widget: label, TRUE);
52
53 button_grid = gtk_grid_new ();
54 for (i = 0; i < 80; i++)
55 {
56 char *button_label = g_strdup_printf (format: "Button number %d", i);
57
58 button = gtk_button_new_with_label (label: button_label);
59 gtk_grid_attach (GTK_GRID (button_grid), child: button, column: 0, row: i, width: 1, height: 1);
60 gtk_widget_set_hexpand (widget: button, TRUE);
61 g_signal_connect (button, "clicked",
62 G_CALLBACK (on_button_clicked),
63 GINT_TO_POINTER (i));
64 g_free (mem: button_label);
65 }
66
67 swindow = gtk_scrolled_window_new ();
68 gtk_scrolled_window_set_kinetic_scrolling (GTK_SCROLLED_WINDOW (swindow), TRUE);
69 gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), child: button_grid);
70
71 gtk_grid_attach (GTK_GRID (grid), child: swindow, column: 0, row: 1, width: 1, height: 1);
72
73 treeview = gtk_tree_view_new ();
74 targets = gdk_content_formats_new_for_gtype (GTK_TYPE_TREE_ROW_DATA);
75 gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (treeview),
76 start_button_mask: GDK_BUTTON1_MASK,
77 formats: targets,
78 actions: GDK_ACTION_MOVE | GDK_ACTION_COPY);
79 gtk_tree_view_enable_model_drag_dest (GTK_TREE_VIEW (treeview),
80 formats: targets,
81 actions: GDK_ACTION_MOVE | GDK_ACTION_COPY);
82 gdk_content_formats_unref (formats: targets);
83
84 renderer = gtk_cell_renderer_text_new ();
85 g_object_set (object: renderer, first_property_name: "editable", TRUE, NULL);
86 gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
87 position: 0, title: "Title",
88 cell: renderer,
89 "text", 0,
90 NULL);
91 store = gtk_list_store_new (n_columns: 1, G_TYPE_STRING);
92 for (i = 0; i < 80; i++)
93 {
94 GtkTreeIter iter;
95 char *iter_label = g_strdup_printf (format: "Row number %d", i);
96
97 gtk_list_store_append (list_store: store, iter: &iter);
98 gtk_list_store_set (list_store: store, iter: &iter, 0, iter_label, -1);
99 g_free (mem: iter_label);
100 }
101 gtk_tree_view_set_model (GTK_TREE_VIEW (treeview), GTK_TREE_MODEL (store));
102 g_object_unref (object: store);
103
104 swindow = gtk_scrolled_window_new ();
105 gtk_scrolled_window_set_kinetic_scrolling (GTK_SCROLLED_WINDOW (swindow), TRUE);
106 gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), child: treeview);
107
108 gtk_grid_attach (GTK_GRID (grid), child: swindow, column: 1, row: 1, width: 1, height: 1);
109 gtk_widget_set_hexpand (widget: swindow, TRUE);
110 gtk_widget_set_vexpand (widget: swindow, TRUE);
111
112 textview = gtk_text_view_new ();
113 swindow = gtk_scrolled_window_new ();
114 gtk_scrolled_window_set_kinetic_scrolling (GTK_SCROLLED_WINDOW (swindow), TRUE);
115 gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), child: textview);
116
117 gtk_grid_attach (GTK_GRID (grid), child: swindow, column: 2, row: 1, width: 1, height: 1);
118 gtk_widget_set_hexpand (widget: swindow, TRUE);
119 gtk_widget_set_vexpand (widget: swindow, TRUE);
120
121 gtk_window_set_child (GTK_WINDOW (window), child: grid);
122
123 gtk_widget_show (widget: window);
124}
125
126int
127main (int argc, char **argv)
128{
129 gtk_init ();
130
131 kinetic_scrolling ();
132
133 while (!done)
134 g_main_context_iteration (NULL, TRUE);
135
136 return 0;
137}
138

source code of gtk/tests/testkineticscrolling.c