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<div class="sect1" title="Examples">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="sec-textview-examples"></a>Examples</h2></div></div></div>
<div class="sect2" title="Simple Example">
<div class="titlepage"><div><div><h3 class="title">
<a name="textview-example-simple"></a>Simple Example</h3></div></div></div>
<div class="figure">
<a name="figure-textview"></a><p class="title"><b>Figure 10.1. TextView</b></p>
<div class="figure-contents"><div class="screenshot"><div><img src="figures/textview.png" alt="TextView"></div></div></div>
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<br class="figure-break"><p><a class="ulink" href="http://git.gnome.org/cgit/gtkmm-documentation/tree/examples/book/textview/" 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:
void fill_buffers();
//Signal handlers:
void on_button_quit();
void on_button_buffer1();
void on_button_buffer2();
//Child widgets:
Gtk::VBox m_VBox;
Gtk::ScrolledWindow m_ScrolledWindow;
Gtk::TextView m_TextView;
Glib::RefPtr<Gtk::TextBuffer> m_refTextBuffer1, m_refTextBuffer2;
Gtk::HButtonBox m_ButtonBox;
Gtk::Button m_Button_Quit, m_Button_Buffer1, m_Button_Buffer2;
};
#endif //GTKMM_EXAMPLEWINDOW_H
</pre>
<p>File: <code class="filename">examplewindow.cc</code>
</p>
<pre class="programlisting">
#include "examplewindow.h"
ExampleWindow::ExampleWindow()
: m_Button_Quit(Gtk::Stock::QUIT),
m_Button_Buffer1("Use buffer 1"),
m_Button_Buffer2("Use buffer 2")
{
set_title("Gtk::TextView example");
set_border_width(5);
set_default_size(400, 200);
add(m_VBox);
//Add the TreeView, inside a ScrolledWindow, with the button underneath:
m_ScrolledWindow.add(m_TextView);
//Only show the scrollbars when they are necessary:
m_ScrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
m_VBox.pack_start(m_ScrolledWindow);
//Add buttons:
m_VBox.pack_start(m_ButtonBox, Gtk::PACK_SHRINK);
m_ButtonBox.pack_start(m_Button_Buffer1, Gtk::PACK_SHRINK);
m_ButtonBox.pack_start(m_Button_Buffer2, Gtk::PACK_SHRINK);
m_ButtonBox.pack_start(m_Button_Quit, Gtk::PACK_SHRINK);
m_ButtonBox.set_border_width(5);
m_ButtonBox.set_spacing(5);
m_ButtonBox.set_layout(Gtk::BUTTONBOX_END);
//Connect signals:
m_Button_Quit.signal_clicked().connect(sigc::mem_fun(*this,
&ExampleWindow::on_button_quit) );
m_Button_Buffer1.signal_clicked().connect(sigc::mem_fun(*this,
&ExampleWindow::on_button_buffer1) );
m_Button_Buffer2.signal_clicked().connect(sigc::mem_fun(*this,
&ExampleWindow::on_button_buffer2) );
fill_buffers();
on_button_buffer1();
show_all_children();
}
void ExampleWindow::fill_buffers()
{
m_refTextBuffer1 = Gtk::TextBuffer::create();
m_refTextBuffer1->set_text("This is the text from TextBuffer #1.");
m_refTextBuffer2 = Gtk::TextBuffer::create();
m_refTextBuffer2->set_text(
"This is some alternative text, from TextBuffer #2.");
}
ExampleWindow::~ExampleWindow()
{
}
void ExampleWindow::on_button_quit()
{
hide();
}
void ExampleWindow::on_button_buffer1()
{
m_TextView.set_buffer(m_refTextBuffer1);
}
void ExampleWindow::on_button_buffer2()
{
m_TextView.set_buffer(m_refTextBuffer2);
}
</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>
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