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