<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Examples</title> <link rel="stylesheet" type="text/css" href="style.css"> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="Programming with gtkmm 3"> <link rel="up" href="chapter-textview.html" title="Chapter 11. TextView"> <link rel="prev" href="sec-widgets-and-childanchors.html" title="Widgets and ChildAnchors"> <link rel="next" href="chapter-menus-and-toolbars.html" title="Chapter 12. 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="sec-widgets-and-childanchors.html"><img src="icons/prev.png" alt="Prev"></a> </td> <th width="60%" align="center">Chapter 11. TextView</th> <td width="20%" align="right"> <a accesskey="n" href="chapter-menus-and-toolbars.html"><img src="icons/next.png" alt="Next"></a> </td> </tr> </table> <hr> </div> <div class="sect1"> <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"> <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 11.1. 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="http://git.gnome.org/browse/gtkmm-documentation/tree/examples/book/textview/?h=gtkmm-3-24" target="_top">Source Code</a></p> <p>File: <code class="filename">examplewindow.h</code> (For use with gtkmm 3, not gtkmm 2) </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::Box m_VBox; Gtk::ScrolledWindow m_ScrolledWindow; Gtk::TextView m_TextView; Glib::RefPtr<Gtk::TextBuffer> m_refTextBuffer1, m_refTextBuffer2; Gtk::ButtonBox 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> (For use with gtkmm 3, not gtkmm 2) </p> <pre class="programlisting"> #include "examplewindow.h" #include <gtkmm/application.h> int main(int argc, char *argv[]) { auto app = Gtk::Application::create(argc, argv, "org.gtkmm.example"); ExampleWindow window; //Shows the window and returns when it is closed. return app->run(window); } </pre> <p>File: <code class="filename">examplewindow.cc</code> (For use with gtkmm 3, not gtkmm 2) </p> <pre class="programlisting"> #include "examplewindow.h" ExampleWindow::ExampleWindow() : m_VBox(Gtk::ORIENTATION_VERTICAL), m_Button_Quit("_Quit", true), 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="sec-widgets-and-childanchors.html"><img src="icons/prev.png" alt="Prev"></a> </td> <td width="20%" align="center"><a accesskey="u" href="chapter-textview.html"><img src="icons/up.png" alt="Up"></a></td> <td width="40%" align="right"> <a accesskey="n" href="chapter-menus-and-toolbars.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 12. 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