Symbian3/PDK/Source/GUID-58318BAB-2EC4-4C9E-A7CA-580E701EE54F.dita
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
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<!-- This component and the accompanying materials are made available under the terms of the License 
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"Eclipse Public License v1.0" which accompanies this distribution, 
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
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<!-- Initial Contributors:
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    Nokia Corporation - initial contribution.
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Contributors: 
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-->
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="GUID-58318BAB-2EC4-4C9E-A7CA-580E701EE54F" xml:lang="en"><title>Adding
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and removing toolbar items</title><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p> Toolbar items are controls that derive from the <codeph>CCoeControl</codeph> base
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class. The floating toolbar can have only buttons (<xref href="jar:GUID-759FBC7F-5384-4487-8457-A8D4B76F6AA6.jar!/html/classCAknButton.html" format="application/java-archive"><codeph>CAknButton</codeph></xref>) if it is focusing. The number of buttons displayed in floating toolbar
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depends on the screen resolution in use. The fixed toolbar always has three
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buttons. </p>
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<p>You can define toolbar items either in the resource file or create them
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dynamically at runtime. </p>
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<p>If you define the items in resources, use the <codeph>TBAR_CTRL</codeph> structure.
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Define at least the type, ID, and the control itself in this structure. For
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the resource definitions, see <xref href="GUID-402C3EE7-8852-49B6-BE62-8588753FAC8F.dita">Constructing
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the toolbar</xref>.</p>
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<p>To add the items dynamically, use the toolbar functions as illustrated
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in the examples below.</p>
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<p>You can add items to a specific position in toolbar or as the last item
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in the toolbar. </p>
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<p>You can also remove toolbar items at runtime.</p>
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<p>The example below shows how to add a button dynamically as the last toolbar
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item.</p>
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<codeblock xml:space="preserve">
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void CMyAppView::AddItemAsLastToToolbarL()
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    {
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    CAknToolbar* toolbar = Toolbar();
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    if ( toolbar )
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        {
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        CAknButton* newButton = CAknButton::NewL( R_MYAPP_BUTTON );
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        toolbar-&gt;AddItemL( newButton, EAknCtButton, KButtonId, 0 );
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        }
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    }
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</codeblock>
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<p>The example below shows how to add a button dynamically as the first toolbar
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item.</p>
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<codeblock xml:space="preserve">
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void CMyAppView::AddItemAsFirstToToolbarL()
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    {
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    CAknToolbar* toolbar = Toolbar();
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    if ( toolbar )
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        {
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        CAknButton* newButton = CAknButton::NewL( R_MYAPP_BUTTON );
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        // Last parameter the index at where to add the button
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        toolbar-&gt;AddItemL( newButton, EAknCtButton, KButtonId, 0, 0 );
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        }
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    }
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</codeblock>
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<p>The example below shows how to remove a button from the toolbar based on
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the button ID.</p>
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<codeblock xml:space="preserve">
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void CMyAppView::RemoveItemFromToolbar()
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    {
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    CAknToolbar* toolbar = Toolbar();
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    if ( toolbar )
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        {
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        toolbar-&gt;RemoveItem( KButtonId );
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        }
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    }
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</codeblock>
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</conbody></concept>