Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_direct_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/Graphics/WS/Direct/Direct.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>
<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 <span class="preprocessor">#include "CLifeEngine.h"</span>
<a name="l00017"></a>00017 <span class="preprocessor">#include "Direct.h"</span>
<a name="l00018"></a>00018 <span class="preprocessor">#include "CDirectDisplayLife.h"</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#include <eikenv.h></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <eikmenub.h></span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#include <eikspane.h></span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include <eikstart.h></span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="comment">//</span>
<a name="l00028"></a>00028 <span class="comment">// CExampleAppView</span>
<a name="l00029"></a>00029 <span class="comment">//</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 CExampleAppView::CExampleAppView(CLifeEngine& aLifeEngine)
<a name="l00032"></a>00032 : iLifeEngine(aLifeEngine)
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keywordtype">void</span> CExampleAppView::ConstructL(<span class="keyword">const</span> TRect& aRect)
<a name="l00037"></a>00037 {
<a name="l00038"></a>00038 <span class="comment">// Create window</span>
<a name="l00039"></a>00039 CreateWindowL();
<a name="l00040"></a>00040 SetRect(aRect);
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="comment">// Set up direct displayer for life engine</span>
<a name="l00043"></a>00043 iDirectDisplayLife = <span class="keyword">new</span> (ELeave) CDirectDisplayLife (
<a name="l00044"></a>00044 iEikonEnv->WsSession(), <span class="comment">// Window server session</span>
<a name="l00045"></a>00045 Window(), <span class="comment">// The window itself</span>
<a name="l00046"></a>00046 iLifeEngine);
<a name="l00047"></a>00047 iDirectDisplayLife -> ConstructL();
<a name="l00048"></a>00048
<a name="l00049"></a>00049 ActivateL();
<a name="l00050"></a>00050 }
<a name="l00051"></a>00051
<a name="l00052"></a>00052 CExampleAppView::~CExampleAppView()
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 <span class="keyword">delete</span> iDirectDisplayLife;
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="comment">// Start using the DSA</span>
<a name="l00058"></a>00058 <span class="keywordtype">void</span> CExampleAppView::StartDirectL()
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 iDirectDisplayLife -> StartL();
<a name="l00061"></a>00061 iState = EDirectStarted;
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="comment">// Pause use of the DSA</span>
<a name="l00065"></a>00065 <span class="keywordtype">void</span> CExampleAppView::PauseDirect()
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 iState = EDirectPaused;
<a name="l00068"></a>00068 iDirectDisplayLife -> Cancel();
<a name="l00069"></a>00069 }
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="comment">// Restart use of the DSA after pausing</span>
<a name="l00072"></a>00072 <span class="keywordtype">void</span> CExampleAppView::RestartDirect()
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 iState = EDirectStarted;
<a name="l00075"></a>00075 iDirectDisplayLife -> Restart(RDirectScreenAccess::ETerminateCancel);
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="comment">// Gets the view state</span>
<a name="l00079"></a>00079 TInt CExampleAppView::State()<span class="keyword"> const</span>
<a name="l00080"></a>00080 <span class="keyword"> </span>{
<a name="l00081"></a>00081 <span class="keywordflow">return</span> iState;
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keywordtype">void</span> CExampleAppView::Draw(<span class="keyword">const</span> TRect& <span class="comment">/*aRect*/</span>)<span class="keyword"> const</span>
<a name="l00086"></a>00086 <span class="keyword"> </span>{
<a name="l00087"></a>00087 CWindowGc& gc = SystemGc();
<a name="l00088"></a>00088 <span class="comment">// white out whole rectangle</span>
<a name="l00089"></a>00089 TRect rect=Rect();
<a name="l00090"></a>00090 gc.SetPenStyle(CGraphicsContext::ENullPen);
<a name="l00091"></a>00091 gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
<a name="l00092"></a>00092 gc.SetBrushColor(KRgbWhite);
<a name="l00093"></a>00093 gc.DrawRect(rect);
<a name="l00094"></a>00094 <span class="comment">// border</span>
<a name="l00095"></a>00095 rect.Shrink(10,10);
<a name="l00096"></a>00096 gc.SetBrushStyle(CGraphicsContext::ENullBrush);
<a name="l00097"></a>00097 gc.SetPenStyle(CGraphicsContext::ESolidPen);
<a name="l00098"></a>00098 gc.DrawRect(rect);
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="comment">//</span>
<a name="l00103"></a>00103 <span class="comment">// CExampleAppUi</span>
<a name="l00104"></a>00104 <span class="comment">//</span>
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keywordtype">void</span> CExampleAppUi::ConstructL()
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 BaseConstructL();
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="comment">// Construct the view</span>
<a name="l00111"></a>00111 iAppView=<span class="keyword">new</span>(ELeave) <a class="code" href="class_c_example_app_view.html">CExampleAppView</a>(static_cast<CExampleDocument*>(Document())->LifeEngine());
<a name="l00112"></a>00112 iAppView->ConstructL(ClientRect());
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="comment">// Construct the example overlaying dialog</span>
<a name="l00115"></a>00115 iOverlayDialog = <span class="keyword">new</span> (ELeave) COverlayDialog();
<a name="l00116"></a>00116 CActiveScheduler::Add(iOverlayDialog);
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118
<a name="l00119"></a>00119 CExampleAppUi::~CExampleAppUi()
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121 <span class="keyword">delete</span> iAppView;
<a name="l00122"></a>00122 iOverlayDialog->Cancel();
<a name="l00123"></a>00123 <span class="keyword">delete</span> iOverlayDialog;
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="comment">// Handle menu commands</span>
<a name="l00127"></a>00127 <span class="keywordtype">void</span> CExampleAppUi::HandleCommandL(TInt aCommand)
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 <span class="keywordflow">switch</span> (aCommand)
<a name="l00130"></a>00130 {
<a name="l00131"></a>00131 <span class="comment">// Start command</span>
<a name="l00132"></a>00132 <span class="keywordflow">case</span> EExampleCmd1:
<a name="l00133"></a>00133 <span class="comment">// Different action required for very first start</span>
<a name="l00134"></a>00134 <span class="comment">// And subsequent restarts</span>
<a name="l00135"></a>00135 <span class="keywordflow">if</span> (iAppView -> State() == CExampleAppView::EDirectNotStarted)
<a name="l00136"></a>00136 iAppView -> StartDirectL();
<a name="l00137"></a>00137 <span class="keywordflow">else</span>
<a name="l00138"></a>00138 {
<a name="l00139"></a>00139 iAppView -> PauseDirect();
<a name="l00140"></a>00140 <span class="keyword">static_cast<</span><a class="code" href="class_c_example_document.html">CExampleDocument</a>*<span class="keyword">></span>(Document())->LifeEngine().Reset();
<a name="l00141"></a>00141 iAppView -> RestartDirect();
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143 <span class="keywordflow">break</span>;
<a name="l00144"></a>00144 <span class="comment">// Test overlay command</span>
<a name="l00145"></a>00145 <span class="keywordflow">case</span> EExampleCmd2:
<a name="l00146"></a>00146 iOverlayDialog->ShowDialog();
<a name="l00147"></a>00147 <span class="keywordflow">break</span>;
<a name="l00148"></a>00148 <span class="comment">// Close command</span>
<a name="l00149"></a>00149 <span class="keywordflow">case</span> EEikCmdExit:
<a name="l00150"></a>00150 Exit();
<a name="l00151"></a>00151 <span class="keywordflow">break</span>;
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="comment">//</span>
<a name="l00156"></a>00156 <span class="comment">// CExampleAppUi::COverlayDialog</span>
<a name="l00157"></a>00157 <span class="comment">//</span>
<a name="l00158"></a>00158
<a name="l00159"></a>00159 CExampleAppUi::COverlayDialog::COverlayDialog()
<a name="l00160"></a>00160 :CActive(EPriorityStandard)
<a name="l00161"></a>00161 {
<a name="l00162"></a>00162 iNotifier.Connect();
<a name="l00163"></a>00163 }
<a name="l00164"></a>00164
<a name="l00165"></a>00165 CExampleAppUi::COverlayDialog::~COverlayDialog()
<a name="l00166"></a>00166 {
<a name="l00167"></a>00167 Cancel();
<a name="l00168"></a>00168 iNotifier.Close();
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="keywordtype">void</span> CExampleAppUi::COverlayDialog::ShowDialog()
<a name="l00172"></a>00172 {
<a name="l00173"></a>00173 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KLine1,<span class="stringliteral">"Overlaying dialog"</span>);
<a name="l00174"></a>00174 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KLine2,<span class="stringliteral">"Owned by another thread"</span>);
<a name="l00175"></a>00175 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KBut,<span class="stringliteral">"OK"</span>);
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="comment">// Use a notifier to display a dialog from the notifier server thread</span>
<a name="l00178"></a>00178 iNotifier.Notify(KLine1,KLine2,KBut,KBut,iR,iStatus);
<a name="l00179"></a>00179 SetActive();
<a name="l00180"></a>00180 }
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keywordtype">void</span> CExampleAppUi::COverlayDialog::RunL()
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 <span class="comment">// Don't care what the dialog returned</span>
<a name="l00185"></a>00185 }
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordtype">void</span> CExampleAppUi::COverlayDialog::DoCancel()
<a name="l00188"></a>00188 {
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <span class="comment">//</span>
<a name="l00192"></a>00192 <span class="comment">// CExampleDocument</span>
<a name="l00193"></a>00193 <span class="comment">//</span>
<a name="l00194"></a>00194
<a name="l00195"></a>00195 CExampleDocument::CExampleDocument(CEikApplication& aApp)
<a name="l00196"></a>00196 : CEikDocument(aApp)
<a name="l00197"></a>00197 {
<a name="l00198"></a>00198 }
<a name="l00199"></a>00199
<a name="l00200"></a>00200 CExampleDocument::~CExampleDocument()
<a name="l00201"></a>00201 {
<a name="l00202"></a>00202 <span class="keyword">delete</span> iLifeEngine;
<a name="l00203"></a>00203 }
<a name="l00204"></a>00204
<a name="l00205"></a>00205 CLifeEngine& CExampleDocument::LifeEngine()<span class="keyword"> const</span>
<a name="l00206"></a>00206 <span class="keyword"> </span>{
<a name="l00207"></a>00207 <span class="keywordflow">return</span> *iLifeEngine;
<a name="l00208"></a>00208 }
<a name="l00209"></a>00209
<a name="l00210"></a>00210 CEikAppUi* CExampleDocument::CreateAppUiL()
<a name="l00211"></a>00211 {
<a name="l00212"></a>00212 <span class="comment">// Get a random seed from the timer</span>
<a name="l00213"></a>00213 User::After(1);
<a name="l00214"></a>00214 TTime now;
<a name="l00215"></a>00215 now.HomeTime();
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="comment">// Create engine</span>
<a name="l00218"></a>00218 iLifeEngine = <span class="keyword">new</span> (ELeave) CLifeEngine(now.Int64());
<a name="l00219"></a>00219 <span class="keywordflow">return</span> <span class="keyword">new</span>(ELeave) <a class="code" href="class_c_example_app_ui.html">CExampleAppUi</a>;
<a name="l00220"></a>00220 }
<a name="l00221"></a>00221
<a name="l00222"></a>00222 <span class="comment">//</span>
<a name="l00223"></a>00223 <span class="comment">// CExampleApplication</span>
<a name="l00224"></a>00224 <span class="comment">//</span>
<a name="l00225"></a>00225
<a name="l00226"></a>00226 TUid CExampleApplication::AppDllUid()<span class="keyword"> const</span>
<a name="l00227"></a>00227 <span class="keyword"> </span>{
<a name="l00228"></a>00228 <span class="keywordflow">return</span> KUidExample;
<a name="l00229"></a>00229 }
<a name="l00230"></a>00230
<a name="l00231"></a>00231 CApaDocument* CExampleApplication::CreateDocumentL()
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233 <span class="keywordflow">return</span> <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_example_document.html">CExampleDocument</a>(*<span class="keyword">this</span>);
<a name="l00234"></a>00234 }
<a name="l00235"></a>00235
<a name="l00236"></a>00236 <span class="comment">//</span>
<a name="l00237"></a>00237 <span class="comment">// DLL interface</span>
<a name="l00238"></a>00238 <span class="comment">//</span>
<a name="l00239"></a>00239
<a name="l00240"></a>00240 EXPORT_C CApaApplication* NewApplication()
<a name="l00241"></a>00241 {
<a name="l00242"></a>00242 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_c_example_application.html">CExampleApplication</a>;
<a name="l00243"></a>00243 }
<a name="l00244"></a>00244
<a name="l00245"></a>00245
<a name="l00246"></a>00246 <span class="keyword">extern</span> TInt E32Main()
<a name="l00247"></a>00247 {
<a name="l00248"></a>00248 <span class="keywordflow">return</span> EikStart::RunApplication(NewApplication);
<a name="l00249"></a>00249 }
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