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#include <gtk/gtk.h>
static void
on_button_clicked (GtkWidget *widget, gpointer data)
{
g_print ("Button %d clicked\n", GPOINTER_TO_INT (data));
}
static gboolean done = FALSE;
static void
quit_cb (GtkWidget *widget,
gpointer user_data)
{
gboolean *is_done = user_data;
*is_done = TRUE;
g_main_context_wakeup (NULL);
}
static void
kinetic_scrolling (void)
{
GtkWidget *window, *swindow, *grid;
GtkWidget *label;
GtkWidget *button_grid, *button;
GtkWidget *treeview;
GtkCellRenderer *renderer;
GtkListStore *store;
GtkWidget *textview;
GdkContentFormats *targets;
int i;
window = gtk_window_new ();
gtk_window_set_default_size (GTK_WINDOW (window), 400, 400);
g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
grid = gtk_grid_new ();
label = gtk_label_new ("Non scrollable widget using viewport");
gtk_grid_attach (GTK_GRID (grid), label, 0, 0, 1, 1);
gtk_widget_set_hexpand (label, TRUE);
label = gtk_label_new ("Scrollable widget: TreeView");
gtk_grid_attach (GTK_GRID (grid), label, 1, 0, 1, 1);
gtk_widget_set_hexpand (label, TRUE);
label = gtk_label_new ("Scrollable widget: TextView");
gtk_grid_attach (GTK_GRID (grid), label, 2, 0, 1, 1);
gtk_widget_set_hexpand (label, TRUE);
button_grid = gtk_grid_new ();
for (i = 0; i < 80; i++)
{
char *button_label = g_strdup_printf ("Button number %d", i);
button = gtk_button_new_with_label (button_label);
gtk_grid_attach (GTK_GRID (button_grid), button, 0, i, 1, 1);
gtk_widget_set_hexpand (button, TRUE);
g_signal_connect (button, "clicked",
G_CALLBACK (on_button_clicked),
GINT_TO_POINTER (i));
g_free (button_label);
}
swindow = gtk_scrolled_window_new ();
gtk_scrolled_window_set_kinetic_scrolling (GTK_SCROLLED_WINDOW (swindow), TRUE);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), button_grid);
gtk_grid_attach (GTK_GRID (grid), swindow, 0, 1, 1, 1);
treeview = gtk_tree_view_new ();
targets = gdk_content_formats_new_for_gtype (GTK_TYPE_TREE_ROW_DATA);
gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (treeview),
GDK_BUTTON1_MASK,
targets,
GDK_ACTION_MOVE | GDK_ACTION_COPY);
gtk_tree_view_enable_model_drag_dest (GTK_TREE_VIEW (treeview),
targets,
GDK_ACTION_MOVE | GDK_ACTION_COPY);
gdk_content_formats_unref (targets);
renderer = gtk_cell_renderer_text_new ();
g_object_set (renderer, "editable", TRUE, NULL);
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
0, "Title",
renderer,
"text", 0,
NULL);
store = gtk_list_store_new (1, G_TYPE_STRING);
for (i = 0; i < 80; i++)
{
GtkTreeIter iter;
char *iter_label = g_strdup_printf ("Row number %d", i);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, 0, iter_label, -1);
g_free (iter_label);
}
gtk_tree_view_set_model (GTK_TREE_VIEW (treeview), GTK_TREE_MODEL (store));
g_object_unref (store);
swindow = gtk_scrolled_window_new ();
gtk_scrolled_window_set_kinetic_scrolling (GTK_SCROLLED_WINDOW (swindow), TRUE);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), treeview);
gtk_grid_attach (GTK_GRID (grid), swindow, 1, 1, 1, 1);
gtk_widget_set_hexpand (swindow, TRUE);
gtk_widget_set_vexpand (swindow, TRUE);
textview = gtk_text_view_new ();
swindow = gtk_scrolled_window_new ();
gtk_scrolled_window_set_kinetic_scrolling (GTK_SCROLLED_WINDOW (swindow), TRUE);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), textview);
gtk_grid_attach (GTK_GRID (grid), swindow, 2, 1, 1, 1);
gtk_widget_set_hexpand (swindow, TRUE);
gtk_widget_set_vexpand (swindow, TRUE);
gtk_window_set_child (GTK_WINDOW (window), grid);
gtk_widget_show (window);
}
int
main (int argc, char **argv)
{
gtk_init ();
kinetic_scrolling ();
while (!done)
g_main_context_iteration (NULL, TRUE);
return 0;
}
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