<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="gl">

  <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 que mostra un GtkTextBuffer</desc>

    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">

      <mal:name>Fran Dieguez</mal:name>

      <mal:email>frandieguez@gnome.org</mal:email>

      <mal:years>2012-2013.</mal:years>

    </mal:credit>

  </info>

  <title>Widget TextView</title>

     <note style="sidebar">
If we press "enter", we have a new line.

     
If we press "enter" more times then there are lines in the default sized window, then a vertical scrollbar appears.

     
If we write a long sentence, the text will wrap breaking lines between words.

     
If we have a loooooooooooooooooooooooooooooooooooong word, a horizontal scrollbar will appear.
</note>

    <media type="image" mime="image/png" src="media/textview.png"/>

    
This is an example of Gtk.TextView

/* 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);

}

Neste exemplo empregaremos o seguinte:

<list>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.TextBuffer.html">Gtk.TextBuffer</link>
</item>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.TextView.html">Gtk.TextView</link>
</item>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.ScrolledWindow.html">Gtk.ScrolledWindow</link>
</item>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.WrapMode.html">Gtk.WrapMode</link>
</item>

  <item>
<link href="http://www.valadoc.org/gtk+-3.0/Gtk.PolicyType.html">Gtk.PolicyType</link>
</item>

</list>

</page>