<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Examples</title>
<link rel="stylesheet" href="style.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.75.1">
<link rel="home" href="index.html" title="Programming with gtkmm">
<link rel="up" href="chapter-menus-and-toolbars.html" title="Chapter 11. Menus and Toolbars">
<link rel="prev" href="sec-menus-popup.html" title="Popup Menus">
<link rel="next" href="chapter-adjustment.html" title="Chapter 12. Adjustments">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<div class="navheader">
<table width="100%" summary="Navigation header">
<tr><th colspan="3" align="center">Examples</th></tr>
<tr>
<td width="20%" align="left">
<a accesskey="p" href="sec-menus-popup.html"><img src="icons/prev.png" alt="Prev"></a> </td>
<th width="60%" align="center">Chapter 11. Menus and Toolbars</th>
<td width="20%" align="right"> <a accesskey="n" href="chapter-adjustment.html"><img src="icons/next.png" alt="Next"></a>
</td>
</tr>
</table>
<hr>
</div>
<div class="sect1" title="Examples">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="sec-menus-examples"></a>Examples</h2></div></div></div>
<div class="sect2" title="Main Menu example">
<div class="titlepage"><div><div><h3 class="title">
<a name="menu-example-main"></a>Main Menu example</h3></div></div></div>
<div class="figure">
<a name="figure-menus-mainmenu"></a><p class="title"><b>Figure 11.1. Main Menu</b></p>
<div class="figure-contents"><div class="screenshot"><div><img src="figures/main_menu.png" alt="Main Menu"></div></div></div>
</div>
<br class="figure-break"><p><a class="ulink" href="http://git.gnome.org/cgit/gtkmm-documentation/tree/examples/book/menus/main_menu/" target="_top">Source Code</a></p>
<p>File: <code class="filename">examplewindow.h</code>
</p>
<pre class="programlisting">
#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H
#include <gtkmm.h>
class ExampleWindow : public Gtk::Window
{
public:
ExampleWindow();
virtual ~ExampleWindow();
protected:
//Signal handlers:
void on_menu_file_new_generic();
void on_menu_file_quit();
void on_menu_others();
void on_menu_choices_one();
void on_menu_choices_two();
//Child widgets:
Gtk::VBox m_Box;
Glib::RefPtr<Gtk::UIManager> m_refUIManager;
Glib::RefPtr<Gtk::ActionGroup> m_refActionGroup;
Glib::RefPtr<Gtk::RadioAction> m_refChoiceOne, m_refChoiceTwo;
};
#endif //GTKMM_EXAMPLEWINDOW_H
</pre>
<p>File: <code class="filename">examplewindow.cc</code>
</p>
<pre class="programlisting">
#include "examplewindow.h"
#include <gtkmm/stock.h>
#include <iostream>
ExampleWindow::ExampleWindow()
{
set_title("main menu example");
set_default_size(200, 200);
add(m_Box); // put a MenuBar at the top of the box and other stuff below it.
//Create actions for menus and toolbars:
m_refActionGroup = Gtk::ActionGroup::create();
//File|New sub menu:
m_refActionGroup->add(Gtk::Action::create("FileNewStandard",
Gtk::Stock::NEW, "_New", "Create a new file"),
sigc::mem_fun(*this, &ExampleWindow::on_menu_file_new_generic));
m_refActionGroup->add(Gtk::Action::create("FileNewFoo",
Gtk::Stock::NEW, "New Foo", "Create a new foo"),
sigc::mem_fun(*this, &ExampleWindow::on_menu_file_new_generic));
m_refActionGroup->add(Gtk::Action::create("FileNewGoo",
Gtk::Stock::NEW, "_New Goo", "Create a new goo"),
sigc::mem_fun(*this, &ExampleWindow::on_menu_file_new_generic));
//File menu:
m_refActionGroup->add(Gtk::Action::create("FileMenu", "File"));
//Sub-menu.
m_refActionGroup->add(Gtk::Action::create("FileNew", Gtk::Stock::NEW));
m_refActionGroup->add(Gtk::Action::create("FileQuit", Gtk::Stock::QUIT),
sigc::mem_fun(*this, &ExampleWindow::on_menu_file_quit));
//Edit menu:
m_refActionGroup->add(Gtk::Action::create("EditMenu", "Edit"));
m_refActionGroup->add(Gtk::Action::create("EditCopy", Gtk::Stock::COPY),
sigc::mem_fun(*this, &ExampleWindow::on_menu_others));
m_refActionGroup->add(Gtk::Action::create("EditPaste", Gtk::Stock::PASTE),
sigc::mem_fun(*this, &ExampleWindow::on_menu_others));
m_refActionGroup->add(Gtk::Action::create("EditSomething", "Something"),
Gtk::AccelKey("<control><alt>S"),
sigc::mem_fun(*this, &ExampleWindow::on_menu_others));
//Choices menu, to demonstrate Radio items
m_refActionGroup->add( Gtk::Action::create("ChoicesMenu", "Choices") );
Gtk::RadioAction::Group group_userlevel;
m_refChoiceOne = Gtk::RadioAction::create(group_userlevel, "ChoiceOne", "One");
m_refActionGroup->add(m_refChoiceOne,
sigc::mem_fun(*this, &ExampleWindow::on_menu_choices_one) );
m_refChoiceTwo = Gtk::RadioAction::create(group_userlevel, "ChoiceTwo", "Two");
m_refActionGroup->add(m_refChoiceTwo,
sigc::mem_fun(*this, &ExampleWindow::on_menu_choices_two) );
//Help menu:
m_refActionGroup->add( Gtk::Action::create("HelpMenu", "Help") );
m_refActionGroup->add( Gtk::Action::create("HelpAbout", Gtk::Stock::HELP),
sigc::mem_fun(*this, &ExampleWindow::on_menu_others) );
m_refUIManager = Gtk::UIManager::create();
m_refUIManager->insert_action_group(m_refActionGroup);
add_accel_group(m_refUIManager->get_accel_group());
//Layout the actions in a menubar and toolbar:
Glib::ustring ui_info =
"<ui>"
" <menubar name='MenuBar'>"
" <menu action='FileMenu'>"
" <menu action='FileNew'>"
" <menuitem action='FileNewStandard'/>"
" <menuitem action='FileNewFoo'/>"
" <menuitem action='FileNewGoo'/>"
" </menu>"
" <separator/>"
" <menuitem action='FileQuit'/>"
" </menu>"
" <menu action='EditMenu'>"
" <menuitem action='EditCopy'/>"
" <menuitem action='EditPaste'/>"
" <menuitem action='EditSomething'/>"
" </menu>"
" <menu action='ChoicesMenu'>"
" <menuitem action='ChoiceOne'/>"
" <menuitem action='ChoiceTwo'/>"
" </menu>"
" <menu action='HelpMenu'>"
" <menuitem action='HelpAbout'/>"
" </menu>"
" </menubar>"
" <toolbar name='ToolBar'>"
" <toolitem action='FileNewStandard'/>"
" <toolitem action='FileQuit'/>"
" </toolbar>"
"</ui>";
#ifdef GLIBMM_EXCEPTIONS_ENABLED
try
{
m_refUIManager->add_ui_from_string(ui_info);
}
catch(const Glib::Error& ex)
{
std::cerr << "building menus failed: " << ex.what();
}
#else
std::auto_ptr<Glib::Error> ex;
m_refUIManager->add_ui_from_string(ui_info, ex);
if(ex.get())
{
std::cerr << "building menus failed: " << ex->what();
}
#endif //GLIBMM_EXCEPTIONS_ENABLED
//Get the menubar and toolbar widgets, and add them to a container widget:
Gtk::Widget* pMenubar = m_refUIManager->get_widget("/MenuBar");
if(pMenubar)
m_Box.pack_start(*pMenubar, Gtk::PACK_SHRINK);
Gtk::Widget* pToolbar = m_refUIManager->get_widget("/ToolBar") ;
if(pToolbar)
m_Box.pack_start(*pToolbar, Gtk::PACK_SHRINK);
show_all_children();
}
ExampleWindow::~ExampleWindow()
{
}
void ExampleWindow::on_menu_file_quit()
{
hide(); //Closes the main window to stop the Gtk::Main::run().
}
void ExampleWindow::on_menu_file_new_generic()
{
std::cout << "A File|New menu item was selected." << std::endl;
}
void ExampleWindow::on_menu_others()
{
std::cout << "A menu item was selected." << std::endl;
}
void ExampleWindow::on_menu_choices_one()
{
Glib::ustring message;
if(m_refChoiceOne->get_active())
message = "Choice 1 was selected.";
else
message = "Choice 1 was deselected";
std::cout << message << std::endl;
}
void ExampleWindow::on_menu_choices_two()
{
Glib::ustring message;
if(m_refChoiceTwo->get_active())
message = "Choice 2 was selected.";
else
message = "Choice 2 was deselected";
std::cout << message << std::endl;
}
</pre>
<p>File: <code class="filename">main.cc</code>
</p>
<pre class="programlisting">
#include <gtkmm/main.h>
#include "examplewindow.h"
int main(int argc, char *argv[])
{
Gtk::Main kit(argc, argv);
ExampleWindow window;
//Shows the window and returns when it is closed.
Gtk::Main::run(window);
return 0;
}
</pre>
</div>
<div class="sect2" title="Popup Menu example">
<div class="titlepage"><div><div><h3 class="title">
<a name="menu-example-popup"></a>Popup Menu example</h3></div></div></div>
<div class="figure">
<a name="figure-menus-popup"></a><p class="title"><b>Figure 11.2. Popup Menu</b></p>
<div class="figure-contents"><div class="screenshot"><div><img src="figures/menu_popup.png" alt="Popup Menu"></div></div></div>
</div>
<br class="figure-break"><p><a class="ulink" href="http://git.gnome.org/cgit/gtkmm-documentation/tree/examples/book/menus/popup/" target="_top">Source Code</a></p>
<p>File: <code class="filename">examplewindow.h</code>
</p>
<pre class="programlisting">
#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H
#include <gtkmm.h>
class ExampleWindow : public Gtk::Window
{
public:
ExampleWindow();
virtual ~ExampleWindow();
protected:
//Signal handlers:
virtual bool on_button_press_event(GdkEventButton* event);
void on_menu_file_popup_generic();
//Child widgets:
Gtk::VBox m_Box;
Gtk::EventBox m_EventBox;
Gtk::Label m_Label;
Glib::RefPtr<Gtk::UIManager> m_refUIManager;
Glib::RefPtr<Gtk::ActionGroup> m_refActionGroup;
Gtk::Menu* m_pMenuPopup;
};
#endif //GTKMM_EXAMPLEWINDOW_H
</pre>
<p>File: <code class="filename">examplewindow.cc</code>
</p>
<pre class="programlisting">
#include "examplewindow.h"
#include <gtkmm/stock.h>
#include <iostream>
ExampleWindow::ExampleWindow()
: m_Label("Right-click to see the popup menu."),
m_pMenuPopup(0)
/* m_Image(Gtk::Stock::DIALOG_QUESTION, Gtk::ICON_SIZE_MENU) */
{
set_title("popup example");
set_default_size(200, 200);
add(m_Box);
//Add an event box that can catch button_press events:
m_Box.pack_start(m_EventBox);
m_EventBox.signal_button_press_event().connect(sigc::mem_fun(*this,
&ExampleWindow::on_button_press_event) );
m_EventBox.add(m_Label);
//Create actions:
//Fill menu:
m_refActionGroup = Gtk::ActionGroup::create();
//File|New sub menu:
//These menu actions would normally already exist for a main menu, because a
//context menu should not normally contain menu items that are only available
//via a context menu.
m_refActionGroup->add(Gtk::Action::create("ContextMenu", "Context Menu"));
m_refActionGroup->add(Gtk::Action::create("ContextEdit", "Edit"),
sigc::mem_fun(*this, &ExampleWindow::on_menu_file_popup_generic));
m_refActionGroup->add(Gtk::Action::create("ContextProcess", "Process"),
Gtk::AccelKey("<control>P"),
sigc::mem_fun(*this, &ExampleWindow::on_menu_file_popup_generic));
m_refActionGroup->add(Gtk::Action::create("ContextRemove", "Remove"),
sigc::mem_fun(*this, &ExampleWindow::on_menu_file_popup_generic));
//TODO:
/*
//Add a ImageMenuElem:
menulist.push_back( Gtk::Menu_Helpers::ImageMenuElem("_Something", m_Image,
sigc::mem_fun(*this, &ExampleWindow::on_menu_file_popup_generic) ) ) ;
*/
m_refUIManager = Gtk::UIManager::create();
m_refUIManager->insert_action_group(m_refActionGroup);
add_accel_group(m_refUIManager->get_accel_group());
//Layout the actions in a menubar and toolbar:
Glib::ustring ui_info =
"<ui>"
" <popup name='PopupMenu'>"
" <menuitem action='ContextEdit'/>"
" <menuitem action='ContextProcess'/>"
" <menuitem action='ContextRemove'/>"
" </popup>"
"</ui>";
#ifdef GLIBMM_EXCEPTIONS_ENABLED
try
{
m_refUIManager->add_ui_from_string(ui_info);
}
catch(const Glib::Error& ex)
{
std::cerr << "building menus failed: " << ex.what();
}
#else
std::auto_ptr<Glib::Error> ex;
m_refUIManager->add_ui_from_string(ui_info, ex);
if(ex.get())
{
std::cerr << "building menus failed: " << ex->what();
}
#endif //GLIBMM_EXCEPTIONS_ENABLED
//Get the menu:
m_pMenuPopup = dynamic_cast<Gtk::Menu*>(
m_refUIManager->get_widget("/PopupMenu"));
if(!m_pMenuPopup)
g_warning("menu not found");
show_all_children();
}
ExampleWindow::~ExampleWindow()
{
}
void ExampleWindow::on_menu_file_popup_generic()
{
std::cout << "A popup menu item was selected." << std::endl;
}
bool ExampleWindow::on_button_press_event(GdkEventButton* event)
{
if( (event->type == GDK_BUTTON_PRESS) && (event->button == 3) )
{
if(m_pMenuPopup)
m_pMenuPopup->popup(event->button, event->time);
return true; //It has been handled.
}
else
return false;
}
</pre>
<p>File: <code class="filename">main.cc</code>
</p>
<pre class="programlisting">
#include <gtkmm/main.h>
#include "examplewindow.h"
int main(int argc, char *argv[])
{
Gtk::Main kit(argc, argv);
ExampleWindow window;
//Shows the window and returns when it is closed.
Gtk::Main::run(window);
return 0;
}
</pre>
</div>
</div>
<div class="navfooter">
<hr>
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left">
<a accesskey="p" href="sec-menus-popup.html"><img src="icons/prev.png" alt="Prev"></a> </td>
<td width="20%" align="center"><a accesskey="u" href="chapter-menus-and-toolbars.html"><img src="icons/up.png" alt="Up"></a></td>
<td width="40%" align="right"> <a accesskey="n" href="chapter-adjustment.html"><img src="icons/next.png" alt="Next"></a>
</td>
</tr>
<tr>
<td width="40%" align="left" valign="top">Popup Menus </td>
<td width="20%" align="center"><a accesskey="h" href="index.html"><img src="icons/home.png" alt="Home"></a></td>
<td width="40%" align="right" valign="top"> Chapter 12. Adjustments </td>
</tr>
</table>
</div>
</body>
</html>
