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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_simple_8cpp_source.html
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
changeset 14 578be2adaf3e
parent 6 43e37759235e
permissions -rw-r--r--
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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<title>TB9.2 Example Applications: examples/Graphics/WS/Simple/Simple.cpp Source File</title>
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<link href="tabs.css" rel="stylesheet" type="text/css"/>
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<link href="doxygen.css" rel="stylesheet" type="text/css"/>
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</head>
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<body>
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<!-- Generated by Doxygen 1.6.2 -->
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<h1>examples/Graphics/WS/Simple/Simple.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
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<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
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<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
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<a name="l00004"></a>00004 <span class="comment">// under the terms of &quot;Eclipse Public License v1.0&quot;</span>
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<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
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<a name="l00006"></a>00006 <span class="comment">// at the URL &quot;http://www.eclipse.org/legal/epl-v10.html&quot;.</span>
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<a name="l00007"></a>00007 <span class="comment">//</span>
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<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
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<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
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<a name="l00010"></a>00010 <span class="comment">//</span>
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<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
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<a name="l00012"></a>00012 <span class="comment">//</span>
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<a name="l00013"></a>00013 <span class="comment">// Description:</span>
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<a name="l00014"></a>00014 <span class="comment">//</span>
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<a name="l00015"></a>00015
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<a name="l00016"></a>00016 <span class="preprocessor">#include &lt;w32std.h&gt;</span>
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<a name="l00017"></a>00017 <span class="preprocessor">#include &quot;Base.h&quot;</span>
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<a name="l00018"></a>00018 <span class="preprocessor">#include &quot;Simple.h&quot;</span>
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<a name="l00019"></a>00019
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<a name="l00020"></a>00020
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<a name="l00022"></a>00022 <span class="comment">//                              Implementation for derived window classes</span>
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<a name="l00024"></a>00024 <span class="comment"></span>
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<a name="l00026"></a>00026 <span class="comment">//                                       CMainWindow implementation                                                     //</span>
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<a name="l00028"></a>00028 <span class="comment"></span>
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<a name="l00029"></a>00029 <span class="comment">/****************************************************************************\</span>
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<a name="l00030"></a>00030 <span class="comment">|       Function:       Constructor/Destructor for CMainWindow</span>
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<a name="l00031"></a>00031 <span class="comment">|                               Doesn&#39;t do much, as most initialisation is done by the</span>
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<a name="l00032"></a>00032 <span class="comment">|                               CWindow base class.</span>
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<a name="l00033"></a>00033 <span class="comment">|       Input:          aClient         Client application that owns the window</span>
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<a name="l00034"></a>00034 <span class="comment">\****************************************************************************/</span>
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<a name="l00035"></a>00035 CMainWindow::CMainWindow (CWsClient* aClient)
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<a name="l00036"></a>00036 : CWindow (aClient)
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<a name="l00037"></a>00037         {
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<a name="l00038"></a>00038         }
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<a name="l00039"></a>00039
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<a name="l00040"></a>00040
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<a name="l00041"></a>00041 CMainWindow::~CMainWindow ()
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<a name="l00042"></a>00042         {
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<a name="l00043"></a>00043         }
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<a name="l00044"></a>00044
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<a name="l00045"></a>00045
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<a name="l00046"></a>00046 <span class="comment">/****************************************************************************\</span>
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<a name="l00047"></a>00047 <span class="comment">|       Function:       CMainWindow::Draw</span>
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<a name="l00048"></a>00048 <span class="comment">|       Purpose:        Redraws the contents of CMainWindow within a given</span>
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<a name="l00049"></a>00049 <span class="comment">|                               rectangle. As CMainWindow has no contents, it simply</span>
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<a name="l00050"></a>00050 <span class="comment">|                               clears the redraw area. A blank window could be used here</span>
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<a name="l00051"></a>00051 <span class="comment">|                               instead. The Clear() is needed because a redraw should</span>
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<a name="l00052"></a>00052 <span class="comment">|                               always draw to every pixel in the redraw rectangle.</span>
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<a name="l00053"></a>00053 <span class="comment">|       Input:          aRect   Rectangle that needs redrawing</span>
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<a name="l00054"></a>00054 <span class="comment">|       Output:         None</span>
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<a name="l00055"></a>00055 <span class="comment">\****************************************************************************/</span>
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<a name="l00056"></a>00056 <span class="keywordtype">void</span> CMainWindow::Draw(<span class="keyword">const</span> TRect&amp; aRect)
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<a name="l00057"></a>00057         {
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<a name="l00058"></a>00058         CWindowGc* gc=SystemGc(); <span class="comment">// get a gc</span>
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<a name="l00059"></a>00059         gc-&gt;SetClippingRect(aRect); <span class="comment">// clip outside this rect</span>
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<a name="l00060"></a>00060         gc-&gt;Clear(aRect); <span class="comment">// clear</span>
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<a name="l00061"></a>00061         }
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<a name="l00062"></a>00062
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<a name="l00063"></a>00063 <span class="comment">/****************************************************************************\</span>
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<a name="l00064"></a>00064 <span class="comment">|       Function:       CMainWindow::HandlePointerEvent</span>
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<a name="l00065"></a>00065 <span class="comment">|       Purpose:        Handles pointer events for CMainWindow.  Doesn&#39;t do</span>
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<a name="l00066"></a>00066 <span class="comment">|                               anything here.</span>
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<a name="l00067"></a>00067 <span class="comment">|       Input:          aPointerEvent   The pointer event</span>
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<a name="l00068"></a>00068 <span class="comment">|       Output:         None</span>
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<a name="l00069"></a>00069 <span class="comment">\****************************************************************************/</span>
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<a name="l00070"></a>00070 <span class="keywordtype">void</span> CMainWindow::HandlePointerEvent (TPointerEvent&amp; <span class="comment">/*aPointerEvent*/</span>)
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<a name="l00071"></a>00071         {
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<a name="l00072"></a>00072         }
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<a name="l00073"></a>00073
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<a name="l00074"></a>00074
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<a name="l00076"></a>00076 <span class="comment">//                                       CSmallWindow implementation</span>
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<a name="l00078"></a>00078 <span class="comment"></span>
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<a name="l00079"></a>00079
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<a name="l00080"></a>00080 <span class="comment">/****************************************************************************\</span>
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<a name="l00081"></a>00081 <span class="comment">|       Function:       Constructor/Destructor for CSmallWindow</span>
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<a name="l00082"></a>00082 <span class="comment">|                               Doesn&#39;t do much, as most initialisation is done by the</span>
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<a name="l00083"></a>00083 <span class="comment">|                               CWindow base class.</span>
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<a name="l00084"></a>00084 <span class="comment">|       Input:          aClient         Client application that owns the window</span>
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<a name="l00085"></a>00085 <span class="comment">\****************************************************************************/</span>
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<a name="l00086"></a>00086
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<a name="l00087"></a>00087 CSmallWindow::CSmallWindow (CWsClient* aClient)
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<a name="l00088"></a>00088 : CWindow (aClient)
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<a name="l00089"></a>00089         {
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<a name="l00090"></a>00090         }
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<a name="l00091"></a>00091
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<a name="l00092"></a>00092
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<a name="l00093"></a>00093 CSmallWindow::~CSmallWindow ()
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<a name="l00094"></a>00094         {
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<a name="l00095"></a>00095         iWindow.Close();
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<a name="l00096"></a>00096         }
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<a name="l00097"></a>00097
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<a name="l00098"></a>00098 <span class="comment">/****************************************************************************\</span>
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<a name="l00099"></a>00099 <span class="comment">|       Function:       CSmallWindow::Draw</span>
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<a name="l00100"></a>00100 <span class="comment">|       Purpose:        Redraws the contents of CSmallWindow within a given</span>
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<a name="l00101"></a>00101 <span class="comment">|                               rectangle.  CSmallWindow displays a square border around</span>
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   106
 
<a name="l00102"></a>00102 <span class="comment">|                               the edges of the window, and two diagonal lines between the</span>
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   107
 
<a name="l00103"></a>00103 <span class="comment">|                               corners.</span>
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   108
 
<a name="l00104"></a>00104 <span class="comment">|       Input:          aRect   Rectangle that needs redrawing</span>
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   109
 
<a name="l00105"></a>00105 <span class="comment">|       Output:         None</span>
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   110
 
<a name="l00106"></a>00106 <span class="comment">\****************************************************************************/</span>
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   111
 
<a name="l00107"></a>00107 <span class="keywordtype">void</span> CSmallWindow::Draw(<span class="keyword">const</span> TRect&amp; aRect)
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   112
 
<a name="l00108"></a>00108         {
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<a name="l00109"></a>00109         <span class="comment">// Drawing to a window is done using functions supplied by</span>
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   114
 
<a name="l00110"></a>00110         <span class="comment">// the graphics context (CWindowGC), not the window.</span>
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<a name="l00111"></a>00111         CWindowGc* gc=SystemGc(); <span class="comment">// get a gc</span>
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<a name="l00112"></a>00112         gc-&gt;SetClippingRect(aRect); <span class="comment">// clip outside this rect</span>
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   117
 
<a name="l00113"></a>00113         gc-&gt;Clear(aRect); <span class="comment">// clear</span>
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   118
 
<a name="l00114"></a>00114         TSize size=iWindow.Size();
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<a name="l00115"></a>00115         TInt width=size.iWidth;
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<a name="l00116"></a>00116         TInt height=size.iHeight;
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<a name="l00117"></a>00117         <span class="comment">// Draw a square border</span>
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   122
 
<a name="l00118"></a>00118         gc-&gt;DrawLine(TPoint(0,0),TPoint(0,height-1));
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<a name="l00119"></a>00119         gc-&gt;DrawLine (TPoint (0, height-1), TPoint (width-1, height-1));
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   124
 
<a name="l00120"></a>00120         gc-&gt;DrawLine(TPoint(width-1,height-1),TPoint(width-1,0));
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   125
 
<a name="l00121"></a>00121         gc-&gt;DrawLine (TPoint (width-1, 0), TPoint (0, 0));
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   126
 
<a name="l00122"></a>00122         <span class="comment">// Draw a line between the corners of the window</span>
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   127
 
<a name="l00123"></a>00123         gc-&gt;DrawLine(TPoint(0,0),TPoint(width, height));
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   128
 
<a name="l00124"></a>00124         gc-&gt;DrawLine (TPoint (0, height), TPoint (width, 0));
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<a name="l00125"></a>00125         }
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   130
 
<a name="l00126"></a>00126
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   131
 
<a name="l00127"></a>00127 <span class="comment">/****************************************************************************\</span>
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   132
 
<a name="l00128"></a>00128 <span class="comment">|       Function:       CSmallWindow::HandlePointerEvent</span>
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   133
 
<a name="l00129"></a>00129 <span class="comment">|       Purpose:        Handles pointer events for CSmallWindow.  Doesn&#39;t do</span>
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   134
 
<a name="l00130"></a>00130 <span class="comment">|                               anything here.</span>
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   135
 
<a name="l00131"></a>00131 <span class="comment">|       Input:          aPointerEvent   The pointer event</span>
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<a name="l00132"></a>00132 <span class="comment">|       Output:         None</span>
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   137
 
<a name="l00133"></a>00133 <span class="comment">\****************************************************************************/</span>
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   138
 
<a name="l00134"></a>00134
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   139
 
<a name="l00135"></a>00135 <span class="keywordtype">void</span> CSmallWindow::HandlePointerEvent (TPointerEvent&amp; <span class="comment">/*aPointerEvent*/</span>)
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   140
 
<a name="l00136"></a>00136         {
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   141
 
<a name="l00137"></a>00137         }
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   142
 
<a name="l00138"></a>00138
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   143
 
<a name="l00140"></a>00140 <span class="comment">//                                       CExampleWsClient implementation                                                //</span>
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   144
 
<a name="l00142"></a>00142 <span class="comment"></span>
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   145
 
<a name="l00143"></a>00143 CExampleWsClient* CExampleWsClient::NewL(<span class="keyword">const</span> TRect&amp; aRect)
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   146
 
<a name="l00144"></a>00144         {
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   147
 
<a name="l00145"></a>00145         <span class="comment">// make new client</span>
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   148
 
<a name="l00146"></a>00146         CExampleWsClient* client=<span class="keyword">new</span> (ELeave) CExampleWsClient(aRect);
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   149
 
<a name="l00147"></a>00147         CleanupStack::PushL(client); <span class="comment">// push, just in case</span>
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   150
 
<a name="l00148"></a>00148         client-&gt;ConstructL(); <span class="comment">// construct and run</span>
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   151
 
<a name="l00149"></a>00149         CleanupStack::Pop();
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   152
 
<a name="l00150"></a>00150         <span class="keywordflow">return</span> client;
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   153
 
<a name="l00151"></a>00151         }
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   154
 
<a name="l00152"></a>00152
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   155
 
<a name="l00153"></a>00153 <span class="comment">/****************************************************************************\</span>
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   156
 
<a name="l00154"></a>00154 <span class="comment">|       Function:       Constructor/Destructor for CExampleWsClient</span>
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<a name="l00155"></a>00155 <span class="comment">|                               Destructor deletes everything that was allocated by</span>
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   158
 
<a name="l00156"></a>00156 <span class="comment">|                               ConstructMainWindowL()</span>
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   159
 
<a name="l00157"></a>00157 <span class="comment">\****************************************************************************/</span>
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   160
 
<a name="l00158"></a>00158
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   161
 
<a name="l00159"></a>00159 CExampleWsClient::CExampleWsClient(<span class="keyword">const</span> TRect&amp; aRect)
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   162
 
<a name="l00160"></a>00160 :iRect(aRect)
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   163
 
<a name="l00161"></a>00161         {
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   164
 
<a name="l00162"></a>00162         }
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   165
 
<a name="l00163"></a>00163
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   166
 
<a name="l00164"></a>00164 CExampleWsClient::~CExampleWsClient ()
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   167
 
<a name="l00165"></a>00165         {
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   168
 
<a name="l00166"></a>00166         <span class="keyword">delete</span> iMainWindow;
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   169
 
<a name="l00167"></a>00167         <span class="keyword">delete</span> iSmallWindow;
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<a name="l00168"></a>00168         }
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   171
 
<a name="l00169"></a>00169
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   172
 
<a name="l00170"></a>00170
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   173
 
<a name="l00171"></a>00171 <span class="comment">/****************************************************************************\</span>
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   174
 
<a name="l00172"></a>00172 <span class="comment">|       Function:       CExampleWsClient::ConstructMainWindowL()</span>
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<a name="l00173"></a>00173 <span class="comment">|                               Called by base class&#39;s ConstructL</span>
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   176
 
<a name="l00174"></a>00174 <span class="comment">|       Purpose:        Allocates and creates all the windows owned by this client</span>
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   177
 
<a name="l00175"></a>00175 <span class="comment">|                               (See list of windows in CExampleWsCLient declaration).</span>
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   178
 
<a name="l00176"></a>00176 <span class="comment">\****************************************************************************/</span>
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   179
 
<a name="l00177"></a>00177
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   180
 
<a name="l00178"></a>00178 <span class="keywordtype">void</span> CExampleWsClient::ConstructMainWindowL()
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   181
 
<a name="l00179"></a>00179         {
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   182
 
<a name="l00180"></a>00180         iMainWindow=<span class="keyword">new</span> (ELeave) CMainWindow(<span class="keyword">this</span>);
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   183
 
<a name="l00181"></a>00181         iMainWindow-&gt;ConstructL(iRect);
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   184
 
<a name="l00182"></a>00182         iSmallWindow  = <span class="keyword">new</span> (ELeave) CSmallWindow (<span class="keyword">this</span>);
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<a name="l00183"></a>00183         iSmallWindow-&gt;ConstructL (TRect (TPoint (100, 75), TSize (50, 50)), iMainWindow);
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<a name="l00184"></a>00184                 }
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   187
 
<a name="l00185"></a>00185
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   188
 
<a name="l00186"></a>00186
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   189
 
<a name="l00187"></a>00187 <span class="comment">/****************************************************************************\</span>
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   190
 
<a name="l00188"></a>00188 <span class="comment">|       Function:       CExampleWsClient::RunL()</span>
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   191
 
<a name="l00189"></a>00189 <span class="comment">|                               Called by active scheduler when an even occurs</span>
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   192
 
<a name="l00190"></a>00190 <span class="comment">|       Purpose:        Processes events according to their type</span>
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   193
 
<a name="l00191"></a>00191 <span class="comment">|                               For key events: calls HandleKeyEventL() (global to client)</span>
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   194
 
<a name="l00192"></a>00192 <span class="comment">|                               For pointer event: calls HandlePointerEvent() for window</span>
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   195
 
<a name="l00193"></a>00193 <span class="comment">|                                  event occurred in.</span>
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   196
 
<a name="l00194"></a>00194 <span class="comment">\****************************************************************************/</span>
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   197
 
<a name="l00195"></a>00195 <span class="keywordtype">void</span> CExampleWsClient::RunL()
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   198
 
<a name="l00196"></a>00196         {
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   199
 
<a name="l00197"></a>00197         <span class="comment">// get the event</span>
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   200
 
<a name="l00198"></a>00198         iWs.GetEvent(iWsEvent);
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   201
 
<a name="l00199"></a>00199         TInt eventType=iWsEvent.Type();
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   202
 
<a name="l00200"></a>00200         <span class="comment">// take action on it</span>
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   203
 
<a name="l00201"></a>00201         <span class="keywordflow">switch</span> (eventType)
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   204
 
<a name="l00202"></a>00202                 {
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   205
 
<a name="l00203"></a>00203         <span class="comment">// window-group related event types</span>
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   206
 
<a name="l00204"></a>00204         <span class="keywordflow">case</span> EEventNull:
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<a name="l00205"></a>00205                 <span class="keywordflow">break</span>;
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<a name="l00206"></a>00206         <span class="keywordflow">case</span> EEventKey:
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   209
 
<a name="l00207"></a>00207                 {
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<a name="l00208"></a>00208                 TKeyEvent&amp; keyEvent=*iWsEvent.Key(); <span class="comment">// get key event</span>
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<a name="l00209"></a>00209                 HandleKeyEventL (keyEvent);
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<a name="l00210"></a>00210                 <span class="keywordflow">break</span>;
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<a name="l00211"></a>00211                 }
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<a name="l00212"></a>00212         <span class="keywordflow">case</span> EEventKeyUp:
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<a name="l00213"></a>00213         <span class="keywordflow">case</span> EEventKeyDown:
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<a name="l00214"></a>00214         <span class="keywordflow">case</span> EEventModifiersChanged:
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<a name="l00215"></a>00215         <span class="keywordflow">case</span> EEventFocusLost:
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<a name="l00216"></a>00216         <span class="keywordflow">case</span> EEventFocusGained:
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<a name="l00217"></a>00217         <span class="keywordflow">case</span> EEventSwitchOn:
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<a name="l00218"></a>00218         <span class="keywordflow">case</span> EEventPassword:
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<a name="l00219"></a>00219         <span class="keywordflow">case</span> EEventWindowGroupsChanged:
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<a name="l00220"></a>00220         <span class="keywordflow">case</span> EEventErrorMessage:
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<a name="l00221"></a>00221                 <span class="keywordflow">break</span>;
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<a name="l00222"></a>00222         <span class="comment">// window related events</span>
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<a name="l00223"></a>00223         <span class="keywordflow">case</span> EEventPointer:
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<a name="l00224"></a>00224                 {
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<a name="l00225"></a>00225                 CWindow* window=(CWindow*)(iWsEvent.Handle()); <span class="comment">// get window</span>
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<a name="l00226"></a>00226                 TPointerEvent&amp; pointerEvent=*iWsEvent.Pointer();
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<a name="l00227"></a>00227                 window-&gt;HandlePointerEvent (pointerEvent);
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<a name="l00228"></a>00228
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<a name="l00229"></a>00229                 <span class="keywordflow">break</span>;
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<a name="l00230"></a>00230                 }
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<a name="l00231"></a>00231         <span class="keywordflow">case</span> EEventPointerEnter:
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<a name="l00232"></a>00232         <span class="keywordflow">case</span> EEventPointerExit:
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<a name="l00233"></a>00233         <span class="keywordflow">case</span> EEventPointerBufferReady:
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<a name="l00234"></a>00234         <span class="keywordflow">case</span> EEventDragDrop:
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<a name="l00235"></a>00235                 <span class="keywordflow">break</span>;
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<a name="l00236"></a>00236         <span class="keywordflow">default</span>:
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<a name="l00237"></a>00237                 <span class="keywordflow">break</span>;
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<a name="l00238"></a>00238                 }
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<a name="l00239"></a>00239         IssueRequest(); <span class="comment">// maintain outstanding request</span>
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<a name="l00240"></a>00240         }
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<a name="l00241"></a>00241
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<a name="l00242"></a>00242 <span class="keywordtype">void</span> CExampleWsClient::HandleKeyEventL(<span class="keyword">struct</span> TKeyEvent&amp; <span class="comment">/*aKeyEvent*/</span>)
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<a name="l00243"></a>00243         {
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<a name="l00244"></a>00244         }
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</pre></div></div>
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<hr size="1"/><address style="text-align: right;"><small>Generated by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
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</body>
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</html>
MCL/sftools/depl/docscontent