Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_backed_up_2_base_8h_source.html
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<h1>examples/Graphics/WS/BackedUp/Base.h</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>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">//</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="preprocessor">#if !defined(__WSBACKED_H__)</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#define __WSBACKED_H__</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="comment">// Forward declarations</span>
<a name="l00022"></a>00022 <span class="keyword">class </span>CWsRedrawer;
<a name="l00023"></a>00023 <span class="keyword">class </span>CWindow;
<a name="l00024"></a>00024 <span class="keyword">class </span>CBackedUpWindow;
<a name="l00025"></a>00025
<a name="l00027"></a>00027 <span class="comment">// Declaration of CWsClient</span>
<a name="l00029"></a>00029 <span class="comment"></span>
<a name="l00030"></a>00030 <span class="keyword">class </span>CWsClient : <span class="keyword">public</span> CActive
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032 <span class="keyword">protected</span>:
<a name="l00033"></a>00033 <span class="comment">//construct</span>
<a name="l00034"></a>00034 CWsClient();
<a name="l00035"></a>00035 CWsScreenDevice* iScreen;
<a name="l00036"></a>00036 CWsRedrawer* iRedrawer;
<a name="l00037"></a>00037 RWsSession iWs;
<a name="l00038"></a>00038 TWsEvent iWsEvent;
<a name="l00039"></a>00039 <span class="keyword">public</span>:
<a name="l00040"></a>00040 <span class="keywordtype">void</span> ConstructL();
<a name="l00041"></a>00041 <span class="comment">// destruct</span>
<a name="l00042"></a>00042 ~CWsClient();
<a name="l00043"></a>00043 <span class="comment">// main window</span>
<a name="l00044"></a>00044 <span class="keyword">virtual</span> <span class="keywordtype">void</span> ConstructMainWindowL();
<a name="l00045"></a>00045 <span class="comment">// terminate cleanly</span>
<a name="l00046"></a>00046 <span class="keywordtype">void</span> Exit();
<a name="l00047"></a>00047 <span class="comment">// active object protocol</span>
<a name="l00048"></a>00048 <span class="keywordtype">void</span> IssueRequest(); <span class="comment">// request an event</span>
<a name="l00049"></a>00049 <span class="keywordtype">void</span> DoCancel(); <span class="comment">// cancel the request</span>
<a name="l00050"></a>00050 <span class="keyword">virtual</span> <span class="keywordtype">void</span> RunL() = 0; <span class="comment">// handle completed request</span>
<a name="l00051"></a>00051 <span class="keyword">virtual</span> <span class="keywordtype">void</span> HandleKeyEventL (TKeyEvent& aKeyEvent) = 0;
<a name="l00052"></a>00052 <span class="keyword">private</span>:
<a name="l00053"></a>00053 RWindowGroup iGroup;
<a name="l00054"></a>00054 CWindowGc* iGc;
<a name="l00055"></a>00055 <span class="keyword">friend</span> <span class="keyword">class </span>CWsRedrawer; <span class="comment">// needs to get at session</span>
<a name="l00056"></a>00056 <span class="keyword">friend</span> <span class="keyword">class </span>CWindow; <span class="comment">// needs to get at session</span>
<a name="l00057"></a>00057 <span class="keyword">friend</span> <span class="keyword">class </span>CBackedUpWindow;
<a name="l00058"></a>00058 };
<a name="l00059"></a>00059
<a name="l00060"></a>00060
<a name="l00061"></a>00061
<a name="l00063"></a>00063 <span class="comment">// CWsRedrawer declaration</span>
<a name="l00065"></a>00065 <span class="comment"></span>
<a name="l00066"></a>00066 <span class="keyword">class </span>CWsRedrawer : <span class="keyword">public</span> CActive
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068 <span class="keyword">public</span>:
<a name="l00069"></a>00069 <span class="comment">// construct/destruct</span>
<a name="l00070"></a>00070 CWsRedrawer();
<a name="l00071"></a>00071 <span class="keywordtype">void</span> ConstructL(CWsClient* aClient);
<a name="l00072"></a>00072 ~CWsRedrawer();
<a name="l00073"></a>00073 <span class="comment">// drawing</span>
<a name="l00074"></a>00074 <span class="keywordtype">void</span> IssueRequest();
<a name="l00075"></a>00075 <span class="keywordtype">void</span> DoCancel();
<a name="l00076"></a>00076 <span class="keywordtype">void</span> RunL();
<a name="l00077"></a>00077 <span class="keyword">protected</span>:
<a name="l00078"></a>00078 CWsClient* iClient;
<a name="l00079"></a>00079 };
<a name="l00080"></a>00080
<a name="l00081"></a>00081
<a name="l00083"></a>00083 <span class="comment">// CWindow declaration</span>
<a name="l00085"></a>00085 <span class="comment"></span>
<a name="l00086"></a>00086 <span class="keyword">class </span>CWindow : <span class="keyword">public</span> CBase
<a name="l00087"></a>00087 {
<a name="l00088"></a>00088 <span class="keyword">public</span>:
<a name="l00089"></a>00089 <span class="keyword">enum</span> {KPointerMoveBufferSize=32};
<a name="l00090"></a>00090 CWindow(CWsClient* aClient);
<a name="l00091"></a>00091 <span class="keywordtype">void</span> ConstructL (<span class="keyword">const</span> TRect& aRect, <span class="keyword">const</span> TRgb& aColor, CBackedUpWindow* aParent=0);
<a name="l00092"></a>00092 ~CWindow();
<a name="l00093"></a>00093 <span class="comment">// access</span>
<a name="l00094"></a>00094 RWindow& Window(); <span class="comment">// our own window</span>
<a name="l00095"></a>00095 CWindowGc* SystemGc(); <span class="comment">// system graphics context</span>
<a name="l00096"></a>00096 CWsScreenDevice* Screen();
<a name="l00097"></a>00097 CFont* Font();
<a name="l00098"></a>00098 <span class="comment">// drawing</span>
<a name="l00099"></a>00099 <span class="keyword">virtual</span> <span class="keywordtype">void</span> Draw(<span class="keyword">const</span> TRect& aRect) = 0;
<a name="l00100"></a>00100 <span class="keyword">virtual</span> <span class="keywordtype">void</span> HandlePointerEvent (TPointerEvent& aPointerEvent) = 0;
<a name="l00101"></a>00101 <span class="keyword">virtual</span> <span class="keywordtype">void</span> HandlePointerMoveBufferReady () = 0;
<a name="l00102"></a>00102 <span class="keyword">protected</span>:
<a name="l00103"></a>00103 RWindow iWindow; <span class="comment">// window server window</span>
<a name="l00104"></a>00104 TRect iRect; <span class="comment">// window's extent</span>
<a name="l00105"></a>00105 <span class="keyword">private</span>:
<a name="l00106"></a>00106 CWsClient* iClient; <span class="comment">// client including session and group</span>
<a name="l00107"></a>00107 CFont* iFont;
<a name="l00108"></a>00108 };
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="keyword">class </span>CBackedUpWindow : <span class="keyword">public</span> CBase
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 <span class="keyword">public</span>:
<a name="l00113"></a>00113 <span class="keyword">enum</span> {KPointerMoveBufferSize=32};
<a name="l00114"></a>00114 CBackedUpWindow(CWsClient* aClient);
<a name="l00115"></a>00115 <span class="keywordtype">void</span> ConstructL (<span class="keyword">const</span> TRect& aRect, CWindow* aParent=0);
<a name="l00116"></a>00116 ~CBackedUpWindow();
<a name="l00117"></a>00117 <span class="comment">// access</span>
<a name="l00118"></a>00118 RBackedUpWindow& Window(); <span class="comment">// our own window</span>
<a name="l00119"></a>00119 CWindowGc* SystemGc(); <span class="comment">// system graphics context</span>
<a name="l00120"></a>00120 CWsScreenDevice* Screen();
<a name="l00121"></a>00121 CFont* Font();
<a name="l00122"></a>00122 <span class="comment">// drawing</span>
<a name="l00123"></a>00123 <span class="keyword">virtual</span> <span class="keywordtype">void</span> Draw(<span class="keyword">const</span> TRect& aRect) = 0;
<a name="l00124"></a>00124 <span class="keyword">virtual</span> <span class="keywordtype">void</span> HandlePointerEvent (TPointerEvent& aPointerEvent) = 0;
<a name="l00125"></a>00125 <span class="keyword">virtual</span> <span class="keywordtype">void</span> HandlePointerMoveBufferReady () = 0;
<a name="l00126"></a>00126 <span class="keyword">protected</span>:
<a name="l00127"></a>00127 RBackedUpWindow iWindow; <span class="comment">// window server window</span>
<a name="l00128"></a>00128 TRect iRect; <span class="comment">// window's extent</span>
<a name="l00129"></a>00129 <span class="keyword">private</span>:
<a name="l00130"></a>00130 CWsClient* iClient; <span class="comment">// client including session and group</span>
<a name="l00131"></a>00131 CFont* iFont;
<a name="l00132"></a>00132 };
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="preprocessor">#endif</span>
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