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<?xml version="1.0" encoding="utf-8"?>
<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="toolbar_builder.vala" xml:lang="gl">
<info>
<title type="text">Barra de ferramentas creada usando Glade (Vala)</title>
<link type="guide" xref="beginner.vala#menu-combo-toolbar"/>
<link type="seealso" xref="toolbar.vala"/>
<link type="seealso" xref="grid.vala"/>
<revision version="0.1" date="2012-05-08" status="draft"/>
<credit type="author copyright">
<name>Tiffany Antopolski</name>
<email its:translate="no">tiffany.antopolski@gmail.com</email>
<years>2012</years>
</credit>
<desc>Unha barra de botóns</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>Barra de ferramentas creada empregando Glade</title>
<media type="image" mime="image/png" src="media/toolbar.png"/>
<p>This example is similar to <link xref="toolbar.vala"/>, except we use Glade to create the toolbar in an XML ui file.</p>
<p>
To create the toolbar using the <link href="http://glade.gnome.org/">Glade Interface Designer</link>:
</p>
<steps>
<item><p>Open Glade, and save the file as <file>toolbar_builder.ui</file></p>
<p><media type="image" src="media/glade_ui.png" width="900">
Screenshot of Glade ui
</media></p>
</item>
<item><p>Under <gui>Containers</gui> on the left hand side, right click on the toolbar icon and select <gui>Add widget as toplevel</gui>.</p>
<p><media type="image" src="media/glade_select_toolbar.png">
Screenshot of toolbar icon in Glade ui
</media></p>
</item>
<item><p>Under the <gui>General</gui> tab on the bottom right, change the <gui>Name</gui> to <input>toolbar</input> and <gui>Show Arrow</gui> to <gui>No</gui>.</p>
<p><media type="image" src="media/glade_toolbar_general.png">
Screenshot of General tab
</media></p>
</item>
<item><p>Under the <gui>Common</gui> tab, set <gui>Horizontal Expand</gui> to <gui>Yes</gui>.</p>
<p><media type="image" src="media/glade_toolbar_common.png">
Screenshot of Common tab
</media></p>
</item>
<item><p>Prema co botón dereito sobre a barra de ferramentas na parte superior dereita e seleccione <gui>Editar</gui>. A xanela <gui>Editor da barra de ferramentas</gui> aparecerá.</p>
<p><media type="image" src="media/glade_toolbar_edit.png">
Screenshot of where to right click to edit toolbar.
</media></p>
</item>
<item><p>Queremos engadir 5 ToolButtons: Novo, Abrir, Desfacer, Pantalla completa e Saír da pantalla completa. Primeiro, precisamos engadir o ToolButton Novo.</p>
<steps>
<item><p>Baixo a lapela <gui>Xerarquía</gui>, prema <gui>Engadir</gui>.</p></item>
<item><p>Cambie o nome do TollItem a <input>new_button</input>.</p></item>
<item><p>Scroll down and set <gui>Is important</gui> to <gui>Yes</gui>. This will cause the label of the ToolButton to be shown, when you view the toolbar.</p></item>
<item><p>Escriba o <gui>nome da acción</gui>: <input>app.new</input>.</p></item>
<item><p>Cambie a <gui>Etiqueta</gui> a <input>Nova</input>.</p></item>
<item><p>Seleccione o Id de inventario <gui>New</gui> desde o menú despregábel, ou o tipo <input>gtk-new</input>.</p></item>
</steps>
<p>Repita os pasos de arriba cos TollButtons que faltan, coas seguintes propiedades:</p>
<table frame="all" rules="rows">
<thead>
<tr>
<td><p>Nome</p></td>
<td><p>É importante</p></td>
<td><p>Nome da acción</p></td>
<td><p>Etiqueta</p></td>
<td><p>ID de inventario</p></td>
</tr>
</thead>
<tbody>
<tr>
<td><p>open_button</p></td>
<td><p>Si</p></td>
<td><p>app.open</p></td>
<td><p>Open</p></td>
<td><p>gtk-open</p></td>
</tr>
<tr>
<td><p>undo_button</p></td>
<td><p>Si</p></td>
<td><p>win.undo</p></td>
<td><p>Desfacer</p></td>
<td><p>gtk-undo</p></td>
</tr>
<tr>
<td><p>fullscreen_button</p></td>
<td><p>Si</p></td>
<td><p>win.fullscreen</p></td>
<td><p>Pantalla completa</p></td>
<td><p>gtk-fullscreen</p></td>
</tr>
<tr>
<td><p>leave_fullscreen_button</p></td>
<td><p>Si</p></td>
<td><p>win.fullscreen</p></td>
<td><p>Saír do modo de pantalla completa</p></td>
<td><p>gtk-leave-fullscreen</p></td>
</tr>
</tbody>
</table>
<media type="image" src="media/glade_toolbar_editor.png">
</media>
</item>
<item><p>Pechar o <gui>Editor de barra de ferramentas</gui>.</p>
</item>
<item><p>When our program will first start, we don't want the <gui>Leave Fullscreen</gui> ToolButton to be visible, since the application will not be in fullscreen mode. You can set this in the <gui>Common</gui> tab, by clicking the <gui>Visible</gui> property to <gui>No</gui>. The ToolButton will still appear in the interface designer, but will behave correctly when the file is loaded into your program code.</p>
<p><media type="image" src="media/glade_visible_no.png">
Setting the visible property to No
</media></p>
</item>
<item><p>Garde o seu traballo e saia de Glade.</p>
</item>
<item><p>The XML file created by Glade is shown below. This is the description of the toolbar. At the time of this writing, the option to add the class Gtk.STYLE_CLASS_PRIMARY_TOOLBAR in the Glade Interface did not exist. We can manually add this to the XML file. To do this, add the following XML code at line 9 of <file>toolbar_builder.ui</file>:</p>
<code><![CDATA[
<style>
<class name="primary-toolbar"/>
</style>
]]></code>
<p>Se non engade isto, o programa funcionará igual. Porén barra de ferramentas resultante semellará un pouco diferente á captura de pantalla da parte superior desta páxina.</p>
</item>
</steps>
<code mime="application/xml" style="numbered"><?xml version="1.0" encoding="UTF-8"?>
<interface>
<!-- interface-requires gtk+ 3.0 -->
<object class="GtkToolbar" id="toolbar">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="hexpand">True</property>
<property name="show_arrow">False</property>
<child>
<object class="GtkToolButton" id="new_button">
<property name="use_action_appearance">False</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_action_appearance">False</property>
<property name="is_important">True</property>
<property name="action_name">app.new</property>
<property name="label" translatable="yes">New</property>
<property name="use_underline">True</property>
<property name="stock_id">gtk-new</property>
</object>
<packing>
<property name="expand">False</property>
<property name="homogeneous">True</property>
</packing>
</child>
<child>
<object class="GtkToolButton" id="open_button">
<property name="use_action_appearance">False</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_action_appearance">False</property>
<property name="is_important">True</property>
<property name="action_name">app.open</property>
<property name="label" translatable="yes">Open</property>
<property name="use_underline">True</property>
<property name="stock_id">gtk-open</property>
</object>
<packing>
<property name="expand">False</property>
<property name="homogeneous">True</property>
</packing>
</child>
<child>
<object class="GtkToolButton" id="undo_button">
<property name="use_action_appearance">False</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_action_appearance">False</property>
<property name="is_important">True</property>
<property name="action_name">win.undo</property>
<property name="label" translatable="yes">Undo</property>
<property name="use_underline">True</property>
<property name="stock_id">gtk-undo</property>
</object>
<packing>
<property name="expand">False</property>
<property name="homogeneous">True</property>
</packing>
</child>
<child>
<object class="GtkToolButton" id="fullscreen_button">
<property name="use_action_appearance">False</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="use_action_appearance">False</property>
<property name="is_important">True</property>
<property name="action_name">win.fullscreen</property>
<property name="label" translatable="yes">Fullscreen</property>
<property name="use_underline">True</property>
<property name="stock_id">gtk-fullscreen</property>
</object>
<packing>
<property name="expand">False</property>
<property name="homogeneous">True</property>
</packing>
</child>
<child>
<object class="GtkToolButton" id="leave_fullscreen_button">
<property name="use_action_appearance">False</property>
<property name="can_focus">False</property>
<property name="use_action_appearance">False</property>
<property name="is_important">True</property>
<property name="action_name">win.fullscreen</property>
<property name="label" translatable="yes">Leave Fullscreen</property>
<property name="use_underline">True</property>
<property name="stock_id">gtk-leave-fullscreen</property>
</object>
<packing>
<property name="expand">False</property>
<property name="homogeneous">True</property>
</packing>
</child>
</object>
</interface>
</code>
<p>Agora crearemos o código de embaixo, que engade a barra de ferrametnas desde o ficheiro que creamos.</p>
<code mime="text/x-csharp" style="numbered">/* This is the Window */
class MyWindow : Gtk.ApplicationWindow {
/* Declare these two ToolButtons, as we will get them
* from the ui file (see lines 32 and 33), so we can
* hide() and show() them as needed.*/
Gtk.ToolButton fullscreen_button;
Gtk.ToolButton leave_fullscreen_button;
/* Constructor */
internal MyWindow (MyApplication app) {
Object (application: app, title: "Toolbar Example");
this.set_default_size (400, 200);
var grid = new Gtk.Grid ();
this.add (grid);
grid.show ();
/* add the toolbar from the ui file */
var builder = new Gtk.Builder ();
try {
builder.add_from_file ("toolbar_builder.ui");
}
/* Handle the exception */
catch (Error e) {
error ("Unable to load file: %s", e.message);
}
grid.attach (builder.get_object ("toolbar") as Gtk.Toolbar, 0, 0, 1, 1);
/* get these objects from the ui file so we can toggle between them */
fullscreen_button = builder.get_object ("fullscreen_button") as Gtk.ToolButton;
leave_fullscreen_button = builder.get_object ("leave_fullscreen_button") as Gtk.ToolButton;
/* create the "undo" window action action */
var undo_action = new SimpleAction ("undo", null);
undo_action.activate.connect (undo_callback);
this.add_action (undo_action);
/* create the "fullscreen" window action */
var fullscreen_action = new SimpleAction ("fullscreen", null);
fullscreen_action.activate.connect (fullscreen_callback);
this.add_action (fullscreen_action);
}
void undo_callback (SimpleAction simple, Variant? parameter) {
print ("You clicked \"Undo\".\n");
}
void fullscreen_callback (SimpleAction simple, Variant? parameter) {
if ((this.get_window ().get_state () & Gdk.WindowState.FULLSCREEN) != 0) {
this.unfullscreen ();
leave_fullscreen_button.hide ();
fullscreen_button.show ();
}
else {
this.fullscreen ();
fullscreen_button.hide ();
leave_fullscreen_button.show ();
}
}
}
/* This is the application */
class MyApplication : Gtk.Application {
protected override void activate () {
new MyWindow (this).show ();
}
protected override void startup () {
base.startup ();
/* Create the "new" action and add it to the app*/
var new_action = new SimpleAction ("new", null);
new_action.activate.connect (new_callback);
this.add_action (new_action);
/* Create the "open" action, and add it to the app */
var open_action = new SimpleAction ("open", null);
open_action.activate.connect (open_callback);
this.add_action (open_action);
/* You could also add the action to the app menu
* if you wanted to.
*/
//var menu = new Menu ();
//menu.append ("New", "app.new");
//this.app_menu = menu;
}
void new_callback (SimpleAction action, Variant? parameter) {
print ("You clicked \"New\".\n");
}
void open_callback (SimpleAction action, Variant? parameter) {
print ("You clicked \"Open\".\n");
}
}
/* The main function creates the application and runs it. */
int main (string[] args) {
return new MyApplication ().run (args);
}
</code>
<p>Neste exemplo empregaremos o seguinte:</p>
<list>
<item><p><link href="http://www.valadoc.org/gtk+-3.0/Gtk.Toolbar.html">Gtk.Toolbar</link></p></item>
<item><p><link href="http://www.valadoc.org/gtk+-3.0/Gtk.ToolButton.html">Gtk.Toolbutton</link></p></item>
<item><p><link href="http://www.valadoc.org/gtk+-3.0/Gtk.Stock.html">Gtk.Stock</link></p></item>
</list>
</page>
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