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gtk3-demo: Add a scrollbar context menu

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Just to demonstrate the capability, not because this is
excellent UI.
This commit is contained in:
Matthias Clasen 2015-07-28 23:48:10 -04:00
parent 763bf27d9c
commit 1fb154e62a
2 changed files with 49 additions and 1 deletions
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48
demos/gtk-demo/main.c
View File

@ -972,6 +972,32 @@ row_activated_cb (GtkWidget *tree_view,
run_example_for_row (window, model, &iter);
}
static void
start_cb (GtkMenuItem *item, GtkWidget *scrollbar)
{
GtkAdjustment *adj;
adj = gtk_range_get_adjustment (GTK_RANGE (scrollbar));
gtk_adjustment_set_value (adj, gtk_adjustment_get_lower (adj));
}
static void
end_cb (GtkMenuItem *item, GtkWidget *scrollbar)
{
GtkAdjustment *adj;
adj = gtk_range_get_adjustment (GTK_RANGE (scrollbar));
gtk_adjustment_set_value (adj, gtk_adjustment_get_upper (adj) - gtk_adjustment_get_page_size (adj));
}
static gboolean
scrollbar_popup (GtkWidget *scrollbar, GtkWidget *menu)
{
gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, 0, gtk_get_current_event_time ());
return TRUE;
}
static void
activate (GApplication *app)
{
@ -981,6 +1007,11 @@ activate (GApplication *app)
GtkTreeModel *model;
GtkTreeIter iter;
GError *error = NULL;
GtkWidget *sw;
GtkWidget *scrollbar;
GtkWidget *menu;
GtkWidget *item;
static GActionEntry win_entries[] = {
{ "run", activate_run, NULL, NULL, NULL }
};
@ -1007,6 +1038,23 @@ activate (GApplication *app)
treeview = (GtkWidget *)gtk_builder_get_object (builder, "treeview");
model = gtk_tree_view_get_model (GTK_TREE_VIEW (treeview));
sw = (GtkWidget *)gtk_builder_get_object (builder, "source-scrolledwindow");
scrollbar = gtk_scrolled_window_get_vscrollbar (GTK_SCROLLED_WINDOW (sw));
menu = gtk_menu_new ();
item = gtk_menu_item_new_with_label ("Start");
g_signal_connect (item, "activate", G_CALLBACK (start_cb), scrollbar);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
item = gtk_menu_item_new_with_label ("End");
g_signal_connect (item, "activate", G_CALLBACK (end_cb), scrollbar);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
gtk_widget_show_all (menu);
g_signal_connect (scrollbar, "popup-menu", G_CALLBACK (scrollbar_popup), menu);
load_file (gtk_demos[0].name, gtk_demos[0].filename);
populate_model (model);

2
demos/gtk-demo/main.ui
View File

@ -160,7 +160,7 @@
</packing>
</child>
<child>
<object class="GtkScrolledWindow" id="scrolledwindow2">
<object class="GtkScrolledWindow" id="source-scrolledwindow">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="shadow_type">none</property>