Hi Ben,
Thank you. This works for me.
I attach two examples (gtk & gtkmm) with a button that do this.
2015-07-30 16:13 GMT+02:00 Ben <iofelben@xxxxxxxxx>:
>
> You can use gtk_stack_set_visible_child()
>
> https://developer.gnome.org/gtk3/stable/GtkStack.html#gtk-stack-set-vis
> ible-child
>
> On Wed, 2015-07-29 at 19:43 +0200, Alfredo Pons wrote:
> > The transtions between GtkStacks are very beautifuls.
> > Can I change pages from the source code without user interaction?
> >
> > The idea is set hide the GtkStackSideBar and change pages from source
> > code when some conditions are met.
> >
> > Than you.
> > _______________________________________________
> > gtk-list mailing list
> > gtk-list@xxxxxxxxx
> > https://mail.gnome.org/mailman/listinfo/gtk-list
/* Stack Sidebar
*
* GtkStackSidebar provides an automatic sidebar widget to control
* navigation of a GtkStack object. This widget automatically updates it
* content based on what is presently available in the GtkStack object,
* and using the "title" child property to set the display labels.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
GtkWidget *stack_example;
GtkWidget *example = NULL;
static void
change_child (GtkWidget *widget,
gpointer data)
{
g_print ("Hello World\n");
gtk_stack_set_visible_child(stack_example, example);
}
int main (int argc, char *argv[])
{
GtkWidget *window = NULL;
GtkWidget *sidebar;
GtkWidget *stack;
GtkWidget *box;
GtkWidget *widget;
GtkWidget *header;
GtkWidget *button;
const gchar* pages[] = {
"Welcome to GTK+",
"GtkStackSidebar Widget",
"Automatic navigation",
"Consistent appearance",
"Scrolling",
"Page 6",
"Page 7",
"Page 8",
"Page 9",
NULL
};
const gchar *c = NULL;
guint i;
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
gtk_widget_set_size_request (window, 500, 350);
header = gtk_header_bar_new ();
gtk_header_bar_set_show_close_button (GTK_HEADER_BAR(header), TRUE);
gtk_window_set_titlebar (GTK_WINDOW(window), header);
gtk_window_set_title (GTK_WINDOW(window), "Stack Sidebar");
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
sidebar = gtk_stack_sidebar_new ();
gtk_box_pack_start (GTK_BOX (box), sidebar, FALSE, FALSE, 0);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
stack = gtk_stack_new ();
stack_example = stack;
gtk_stack_set_transition_type (GTK_STACK (stack), GTK_STACK_TRANSITION_TYPE_SLIDE_UP_DOWN);
gtk_stack_sidebar_set_stack (GTK_STACK_SIDEBAR (sidebar), GTK_STACK (stack));
/* Separator between sidebar and stack */
widget = gtk_separator_new (GTK_ORIENTATION_VERTICAL);
gtk_box_pack_start (GTK_BOX(box), widget, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (box), stack, TRUE, TRUE, 0);
for (i=0; (c = *(pages+i)) != NULL; i++ )
{
if (i == 0)
{
widget = gtk_image_new_from_icon_name ("help-about", GTK_ICON_SIZE_MENU);
gtk_image_set_pixel_size (GTK_IMAGE (widget), 256);
}
else
{
widget = gtk_label_new (c);
if (i == 3)
example = widget;
}
gtk_stack_add_named (GTK_STACK (stack), widget, c);
gtk_container_child_set (GTK_CONTAINER (stack), widget, "title", c, NULL);
}
/* Creates a toggle button */
button=gtk_button_new_with_label("Test button");
g_signal_connect (button, "clicked",
G_CALLBACK (change_child), NULL);
/* Add the button to window */
gtk_container_add(GTK_BOX(box),button);
gtk_widget_show(button);
gtk_container_add (GTK_CONTAINER (window), box);
/* make sure that everything, window and label, are visible */
gtk_widget_show_all (window);
gtk_widget_hide(sidebar);
// gtk_stack_set_visible_child(stack, example);
/* start the main loop, and let it rest there until the application is closed */
gtk_main ();
return 0;
}
/* Stack Sidebar
*
* Gtk::StackSidebar provides an automatic sidebar widget to control
* navigation of a Gtk::Stack object. This widget automatically updates its
* contents based on what is presently available in the Gtk::Stack object,
* and using the "title" child property to set the display labels.
*/
#include <gtkmm.h>
#include <vector>
class Example_StackSidebar : public Gtk::Window
{
public:
Example_StackSidebar();
virtual ~Example_StackSidebar();
protected:
// Container:
Gtk::Box m_Box;
// Widgets:
Gtk::HeaderBar m_HeaderBar;
Gtk::StackSidebar m_StackSidebar;
Gtk::Separator m_Separator;
Gtk::Stack m_Stack;
Gtk::Button m_button;
Gtk::Widget *m_example;
private:
void fill_page_names();
std::vector<Glib::ustring> m_page_names;
void on_button_click();
};
void
Example_StackSidebar::on_button_click()
{
m_Stack.set_visible_child(*m_example);
}
Example_StackSidebar::Example_StackSidebar()
:
m_Box(Gtk::ORIENTATION_HORIZONTAL),
m_HeaderBar(),
m_StackSidebar(),
m_Separator(Gtk::ORIENTATION_VERTICAL),
m_Stack(),
m_button()
{
m_HeaderBar.set_show_close_button(true);
m_button.signal_clicked().connect (sigc::mem_fun (*this, &Example_StackSidebar::on_button_click));
set_titlebar(m_HeaderBar);
set_title("Stack Sidebar demo");
set_default_size(500, 350);
add(m_Box);
m_Box.pack_start(m_StackSidebar, Gtk::PACK_SHRINK);
m_Box.pack_start(m_Separator, Gtk::PACK_SHRINK);
m_Box.pack_start(m_Stack, Gtk::PACK_EXPAND_WIDGET);
m_button.set_label("Test button");
m_Box.add(m_button);
m_Stack.set_transition_type(Gtk::STACK_TRANSITION_TYPE_SLIDE_UP_DOWN);
m_StackSidebar.set_stack(m_Stack);
// Stack pages
fill_page_names();
for (std::size_t i = 0; i != m_page_names.size(); ++i)
{
Gtk::Widget* widget = 0;
if (i == 0)
{
Gtk::Image* image = Gtk::manage(new Gtk::Image());
image->set_from_icon_name("help-about", Gtk::ICON_SIZE_MENU);
image->set_pixel_size(256);
widget = image;
}
else
{
widget = Gtk::manage(new Gtk::Label(m_page_names[i]));
if (i== 3)
m_example = widget;
}
m_Stack.add(*widget, m_page_names[i], m_page_names[i]);
}
show_all();
m_StackSidebar.hide();
}
Example_StackSidebar::~Example_StackSidebar()
{
}
void Example_StackSidebar::fill_page_names()
{
m_page_names.push_back("Welcome to gtkmm");
m_page_names.push_back("Gtk::StackSidebar Widget");
m_page_names.push_back("Automatic navigation");
m_page_names.push_back("Consistent appearance");
m_page_names.push_back("Scrolling");
m_page_names.push_back("Page 6");
m_page_names.push_back("Page 7");
m_page_names.push_back("Page 8");
m_page_names.push_back("Page 9");
}
int main (int argc, char *argv[])
{
Gtk::Main kit(argc, argv);
Example_StackSidebar example;
//Shows the window and returns when it is closed.
Gtk::Main::run(example);
return 0;
}
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