<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 V1.73.2"> <link rel="start" href="index.html" title="Programming with gtkmm"> <link rel="up" href="ch10.html" title="Chapter 10. TextView"> <link rel="prev" href="ch10s02.html" title="Widgets and ChildAnchors"> <link rel="next" href="ch11.html" title="Chapter 11. Menus and Toolbars"> </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="ch10s02.html"><img src="../icons/prev.png" alt="Prev"></a> </td> <th width="60%" align="center">Chapter 10. TextView</th> <td width="20%" align="right"> <a accesskey="n" href="ch11.html"><img src="../icons/next.png" alt="Next"></a> </td> </tr> </table> <hr> </div> <div class="sect1" lang="en"> <div class="titlepage"><div><div><h2 class="title" style="clear: both"> <a name="sec-examples"></a>Examples</h2></div></div></div> <div class="sect2" lang="en"> <div class="titlepage"><div><div><h3 class="title"> <a name="id2582142"></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> </div> <br class="figure-break"><p><a class="ulink" href="../../../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: virtual void fill_buffers(); //Signal handlers: virtual void on_button_quit(); virtual void on_button_buffer1(); virtual 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">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> <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> </div> </div> <div class="navfooter"> <hr> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"> <a accesskey="p" href="ch10s02.html"><img src="../icons/prev.png" alt="Prev"></a> </td> <td width="20%" align="center"><a accesskey="u" href="ch10.html"><img src="../icons/up.png" alt="Up"></a></td> <td width="40%" align="right"> <a accesskey="n" href="ch11.html"><img src="../icons/next.png" alt="Next"></a> </td> </tr> <tr> <td width="40%" align="left" valign="top">Widgets and ChildAnchors </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 11. 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