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<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" xmlns:xi="http://www.w3.org/2001/XInclude" type="guide" style="task" id="textview.vala" xml:lang="de">
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<info>
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<title type="text">TextView (Vala)</title>
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<link type="guide" xref="beginner.vala#multiline"/>
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<revision version="0.1" date="2012-06-07" status="draft"/>
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<credit type="author copyright">
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<name>Tiffany Antopolski</name>
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<email its:translate="no">tiffany.antopolski@gmail.com</email>
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<years>2012</years>
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</credit>
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<desc>Widget which displays a GtkTextBuffer</desc>
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<mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
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<mal:name>Mario Blättermann</mal:name>
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<mal:email>mario.blaettermann@gmail.com</mal:email>
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<mal:years>2011, 2013</mal:years>
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</mal:credit>
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</info>
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<title>TextView-Widget</title>
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<note style="sidebar">If we press "enter", we have a new line.
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If we press "enter" more times then there are lines in the default sized window, then a vertical scrollbar appears.
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If we write a long sentence, the text will wrap breaking lines between words.
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If we have a loooooooooooooooooooooooooooooooooooong word, a horizontal scrollbar will appear. </note>
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<media type="image" mime="image/png" src="media/textview.png"/>
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This is an example of Gtk.TextView
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/* This is the application. */
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public class MyApplication : Gtk.Application {
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/* Override the 'activate' signal of GLib.Application. */
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protected override void activate () {
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/* Create the window of this application. */
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new MyWindow (this).show_all ();
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}
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}
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/* This is the window. */
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class MyWindow: Gtk.ApplicationWindow {
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internal MyWindow (MyApplication app) {
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Object (application: app, title: "TextView Example");
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this.set_default_size (220, 200);
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var buffer = new Gtk.TextBuffer (null); //stores text to be displayed
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var textview = new Gtk.TextView.with_buffer (buffer); //displays TextBuffer
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textview.set_wrap_mode (Gtk.WrapMode.WORD); //sets line wrapping
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var scrolled_window = new Gtk.ScrolledWindow (null, null);
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scrolled_window.set_policy (Gtk.PolicyType.AUTOMATIC,
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Gtk.PolicyType.AUTOMATIC);
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scrolled_window.add (textview);
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scrolled_window.set_border_width (5);
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this.add (scrolled_window);
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}
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}
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/* main creates and runs the application. */
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public int main (string[] args) {
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return new MyApplication ().run (args);
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}
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In this sample we used the following:
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<list>
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<item><link href="http://www.valadoc.org/gtk+-3.0/Gtk.TextBuffer.html">Gtk.TextBuffer</link> </item>
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<item><link href="http://www.valadoc.org/gtk+-3.0/Gtk.TextView.html">Gtk.TextView</link> </item>
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<item><link href="http://www.valadoc.org/gtk+-3.0/Gtk.ScrolledWindow.html">Gtk.ScrolledWindow</link> </item>
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<item><link href="http://www.valadoc.org/gtk+-3.0/Gtk.WrapMode.html">Gtk.WrapMode</link> </item>
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<item><link href="http://www.valadoc.org/gtk+-3.0/Gtk.PolicyType.html">Gtk.PolicyType</link> </item>
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</list>
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</page>
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