Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_camera_wrapper_example_app_view_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>TB9.2 Example Applications: examples/ForumNokia/CameraExample/src/CameraWrapperExampleAppView.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<!-- Generated by Doxygen 1.6.2 -->
<h1>examples/ForumNokia/CameraExample/src/CameraWrapperExampleAppView.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (c) 2009 Nokia Corporation.</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="comment">// INCLUDE FILES</span>
<a name="l00006"></a>00006 <span class="preprocessor">#include <coemain.h></span>
<a name="l00007"></a>00007 <span class="preprocessor">#include <eikon.hrh></span>
<a name="l00008"></a>00008 <span class="preprocessor">#include <aknutils.h></span>
<a name="l00009"></a>00009 <span class="preprocessor">#include <pathinfo.h></span>
<a name="l00010"></a>00010 <span class="preprocessor">#include <f32file.h></span>
<a name="l00011"></a>00011 <span class="preprocessor">#include <BAUTILS.H></span>
<a name="l00012"></a>00012 <span class="preprocessor">#include "CameraWrapperExampleAppView.h"</span>
<a name="l00013"></a>00013 <span class="preprocessor">#include "CameraWrapperExampleAppUi.h"</span>
<a name="l00014"></a>00014
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="comment">// ============================ MEMBER FUNCTIONS ===============================</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <a class="code" href="class_c_camera_wrapper_example_app_view.html">CCameraWrapperExampleAppView</a>* CCameraWrapperExampleAppView::NewL (<span class="keyword">const</span> TRect& aRect )
<a name="l00019"></a>00019 {
<a name="l00020"></a>00020 <a class="code" href="class_c_camera_wrapper_example_app_view.html">CCameraWrapperExampleAppView</a>* <span class="keyword">self</span> = CCameraWrapperExampleAppView::NewLC (aRect );
<a name="l00021"></a>00021 CleanupStack::Pop (<span class="keyword">self</span> );
<a name="l00022"></a>00022 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00023"></a>00023 }
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <a class="code" href="class_c_camera_wrapper_example_app_view.html">CCameraWrapperExampleAppView</a>* CCameraWrapperExampleAppView::NewLC (<span class="keyword">const</span> TRect& aRect )
<a name="l00026"></a>00026 {
<a name="l00027"></a>00027 <a class="code" href="class_c_camera_wrapper_example_app_view.html">CCameraWrapperExampleAppView</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_camera_wrapper_example_app_view.html">CCameraWrapperExampleAppView</a>;
<a name="l00028"></a>00028 CleanupStack::PushL (<span class="keyword">self</span> );
<a name="l00029"></a>00029 <span class="keyword">self</span>->ConstructL (aRect );
<a name="l00030"></a>00030 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00031"></a>00031 }
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::ConstructL (<span class="keyword">const</span> TRect& aRect )
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035 <span class="comment">// Create a window for this application view</span>
<a name="l00036"></a>00036 CreateWindowL ();
<a name="l00037"></a>00037
<a name="l00038"></a>00038 iTitleFont = AknLayoutUtils::FontFromId(EAknLogicalFontPrimarySmallFont);
<a name="l00039"></a>00039
<a name="l00040"></a>00040 iAppUi = <span class="keyword">static_cast<</span><a class="code" href="class_c_camera_wrapper_example_app_ui.html">CCameraWrapperExampleAppUi</a>*<span class="keyword">></span>(iEikonEnv->EikAppUi());
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="comment">// Set the windows size</span>
<a name="l00043"></a>00043 SetRect (aRect );
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="comment">// Activate the window, which makes it ready to be drawn</span>
<a name="l00046"></a>00046 ActivateL ();
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048
<a name="l00049"></a>00049 CCameraWrapperExampleAppView::CCameraWrapperExampleAppView ()
<a name="l00050"></a>00050 {
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052
<a name="l00053"></a>00053 CCameraWrapperExampleAppView::~CCameraWrapperExampleAppView ()
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keywordflow">if</span> (iCameraWrapper)
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057 iCameraWrapper->ReleaseAndPowerOff();
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059 <span class="keyword">delete</span> iCameraWrapper;
<a name="l00060"></a>00060 <span class="keyword">delete</span> iData;
<a name="l00061"></a>00061
<a name="l00062"></a>00062 ReleaseBackBuffer();
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064
<a name="l00065"></a>00065 TKeyResponse CCameraWrapperExampleAppView::OfferKeyEventL(<span class="keyword">const</span> TKeyEvent& aKeyEvent,TEventCode aType)
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <span class="keywordflow">switch</span> ( aKeyEvent.iCode )
<a name="l00068"></a>00068 {
<a name="l00069"></a>00069 <span class="keywordflow">case</span> EKeyOK:
<a name="l00070"></a>00070 <span class="keywordflow">case</span> EStdKeyDevice3:
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 <span class="comment">// Capture picture</span>
<a name="l00073"></a>00073 iCameraShutterFocusing = EFalse;
<a name="l00074"></a>00074 StartFocusing();
<a name="l00075"></a>00075 <span class="keywordflow">return</span> EKeyWasConsumed;
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077 <span class="keywordflow">case</span> EKeyUpArrow:
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (iCameraWrapper->State() == CCameraEngine::EEngineViewFinding)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 iCameraWrapper->AdjustDigitalZoom(ETrue);
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083 <span class="keywordflow">return</span> EKeyWasConsumed;
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 <span class="keywordflow">case</span> EKeyDownArrow:
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 <span class="keywordflow">if</span> (iCameraWrapper->State() == CCameraEngine::EEngineViewFinding)
<a name="l00088"></a>00088 {
<a name="l00089"></a>00089 iCameraWrapper->AdjustDigitalZoom(EFalse);
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091 <span class="keywordflow">return</span> EKeyWasConsumed;
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093 <span class="keywordflow">default</span>:
<a name="l00094"></a>00094 {
<a name="l00095"></a>00095 <span class="keywordflow">break</span>;
<a name="l00096"></a>00096 }
<a name="l00097"></a>00097 };
<a name="l00098"></a>00098
<a name="l00099"></a>00099
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="preprocessor"> #ifdef ENABLE_CAMERA_SHUTTER</span>
<a name="l00102"></a>00102 <span class="preprocessor"></span> <span class="comment">// Camera shutter autofocus</span>
<a name="l00103"></a>00103 <span class="keywordflow">switch</span> ( aKeyEvent.iScanCode )
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 <span class="keywordflow">case</span> KStdKeyCameraFocus:
<a name="l00106"></a>00106 <span class="keywordflow">case</span> KStdKeyCameraFocus2:
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 <span class="comment">// Camera shutter autofocus</span>
<a name="l00109"></a>00109 <span class="keywordflow">if</span> (aType == EEventKeyDown)
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <span class="keywordflow">if</span> (!iAppUi->IsBackCBA())
<a name="l00112"></a>00112 {
<a name="l00113"></a>00113 iCameraShutterFocusing = ETrue;
<a name="l00114"></a>00114 StartFocusing();
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 <span class="keywordflow">return</span> EKeyWasConsumed;
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (aType == EEventKeyUp)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 <span class="comment">// Camera state can be EEngineIdle or EEngineFocusing</span>
<a name="l00121"></a>00121 <span class="keywordflow">if</span> (!iAppUi->IsBackCBA() && (iCameraWrapper->State() == CCameraEngine::EEngineFocusing ||
<a name="l00122"></a>00122 iCameraWrapper->State() == CCameraEngine::EEngineIdle))
<a name="l00123"></a>00123 {
<a name="l00124"></a>00124 iCameraWrapper->FocusCancel();
<a name="l00125"></a>00125 CancelCapturedPicture();
<a name="l00126"></a>00126 iAppUi->UseOptionsExitCbaL();
<a name="l00127"></a>00127 }
<a name="l00128"></a>00128 <span class="keywordflow">return</span> EKeyWasConsumed;
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131 <span class="keywordflow">default</span>:
<a name="l00132"></a>00132 {
<a name="l00133"></a>00133 <span class="keywordflow">break</span>;
<a name="l00134"></a>00134 }
<a name="l00135"></a>00135 };
<a name="l00136"></a>00136 <span class="preprocessor"> #endif</span>
<a name="l00137"></a>00137 <span class="preprocessor"></span>
<a name="l00138"></a>00138 <span class="keywordflow">return</span> EKeyWasNotConsumed;
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::CancelCapturedPicture(TBool aCleanTexts)
<a name="l00142"></a>00142 {
<a name="l00143"></a>00143 <span class="keywordflow">if</span> (iCameraWrapper && iCameraWrapper->State() == CCameraEngine::EEngineIdle)
<a name="l00144"></a>00144 {
<a name="l00145"></a>00145 TRAPD(err,iCameraWrapper->StartViewFinderL(iViewFinderSize));
<a name="l00146"></a>00146 <span class="keywordflow">if</span> (aCleanTexts)
<a name="l00147"></a>00147 {
<a name="l00148"></a>00148 <span class="keywordflow">if</span> (err)
<a name="l00149"></a>00149 {
<a name="l00150"></a>00150 SetError(_L(<span class="stringliteral">"Camera viewfinder error %d"</span>), err);
<a name="l00151"></a>00151 }
<a name="l00152"></a>00152 <span class="keywordflow">else</span>
<a name="l00153"></a>00153 {
<a name="l00154"></a>00154 SetTitle(_L(<span class="stringliteral">"Camera viewfinder"</span>));
<a name="l00155"></a>00155 }
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 }
<a name="l00159"></a>00159
<a name="l00160"></a>00160 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::Draw(<span class="keyword">const</span> TRect& <span class="comment">/*aRect*/</span>)<span class="keyword"> const</span>
<a name="l00161"></a>00161 <span class="keyword"> </span>{
<a name="l00162"></a>00162 CWindowGc& gc = SystemGc ();
<a name="l00163"></a>00163
<a name="l00164"></a>00164 <span class="comment">// Draw backbuffer that has camera picture</span>
<a name="l00165"></a>00165 gc.BitBlt(TPoint(0, 0), iBackBuffer);
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="comment">// Draw texts</span>
<a name="l00168"></a>00168 DrawTexts(gc);
<a name="l00169"></a>00169
<a name="l00170"></a>00170 <span class="comment">// Focus rect</span>
<a name="l00171"></a>00171 <span class="keywordflow">if</span> (iCameraWrapper && iCameraWrapper->State() == CCameraEngine::EEngineFocusing)
<a name="l00172"></a>00172 {
<a name="l00173"></a>00173 gc.SetPenColor(KRgbWhite);
<a name="l00174"></a>00174 gc.DrawRect(iFocusRect);
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176 }
<a name="l00177"></a>00177
<a name="l00178"></a>00178 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::DrawTexts(CWindowGc& gc)<span class="keyword"> const</span>
<a name="l00179"></a>00179 <span class="keyword"> </span>{
<a name="l00180"></a>00180 <span class="keywordflow">if</span> (iTitle.Length()>0)
<a name="l00181"></a>00181 {
<a name="l00182"></a>00182 TRect rect(Rect());
<a name="l00183"></a>00183 gc.SetPenColor(KRgbWhite);
<a name="l00184"></a>00184 gc.UseFont(iTitleFont);
<a name="l00185"></a>00185 gc.DrawText(iTitle, rect, rect.Height()/10, CGraphicsContext::ECenter );
<a name="l00186"></a>00186 gc.DiscardFont();
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188 }
<a name="l00189"></a>00189
<a name="l00190"></a>00190 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::SizeChanged()
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 <span class="comment">// Create camera wrapper class here because</span>
<a name="l00193"></a>00193 <span class="comment">// whole camera wrapper and all handles have to reset</span>
<a name="l00194"></a>00194 <span class="comment">// while orientatio of the application changes.</span>
<a name="l00195"></a>00195 <span class="keywordflow">if</span> (iCameraWrapper)
<a name="l00196"></a>00196 {
<a name="l00197"></a>00197 <span class="comment">// Power off camera if it is on</span>
<a name="l00198"></a>00198 iCameraWrapper->StopViewFinder();
<a name="l00199"></a>00199 iCameraWrapper->ReleaseAndPowerOff();
<a name="l00200"></a>00200 <span class="keyword">delete</span> iCameraWrapper; iCameraWrapper = NULL;
<a name="l00201"></a>00201 }
<a name="l00202"></a>00202 TInt camErr(KErrNotSupported);
<a name="l00203"></a>00203 <span class="keywordflow">if</span>(CCameraEngine::CamerasAvailable() > 0)
<a name="l00204"></a>00204 {
<a name="l00205"></a>00205 TRAP(camErr, iCameraWrapper = CCameraEngine::NewL(0,0,<span class="keyword">this</span>));
<a name="l00206"></a>00206 }
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="comment">// iViewFinderSize is picture size for viewfinder.</span>
<a name="l00209"></a>00209 <span class="comment">// iCaptureSize is picture size for capturing picture.</span>
<a name="l00210"></a>00210 <span class="comment">// We want fill whole screen</span>
<a name="l00211"></a>00211 <span class="keywordflow">if</span> (Rect().Size().iWidth > Rect().Size().iHeight)
<a name="l00212"></a>00212 {
<a name="l00213"></a>00213 iViewFinderSize = TSize(Rect().Size().iWidth,Rect().Size().iWidth);
<a name="l00214"></a>00214 iCaptureSize = TSize(1280,960); <span class="comment">// Captured picture size</span>
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216 <span class="keywordflow">else</span>
<a name="l00217"></a>00217 {
<a name="l00218"></a>00218 iViewFinderSize = TSize(Rect().Size().iHeight,Rect().Size().iHeight);
<a name="l00219"></a>00219 iCaptureSize = TSize(1280,960); <span class="comment">// Captured picture size</span>
<a name="l00220"></a>00220 }
<a name="l00221"></a>00221
<a name="l00222"></a>00222 <span class="comment">// Focus rectangle</span>
<a name="l00223"></a>00223 iFocusRect = Rect();
<a name="l00224"></a>00224 iFocusRect.Shrink(Rect().Size().iWidth/4, Rect().Size().iHeight/4);
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="comment">// Create back buffer where recieved camera pictures are copied</span>
<a name="l00227"></a>00227 ReleaseBackBuffer();
<a name="l00228"></a>00228 CreateBackBufferL();
<a name="l00229"></a>00229
<a name="l00230"></a>00230 <span class="comment">// Power on camera, start viewfinder when MceoCameraReady() received</span>
<a name="l00231"></a>00231 <span class="keywordflow">if</span>(camErr == KErrNone)
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233 iCameraWrapper->ReserveAndPowerOn();
<a name="l00234"></a>00234 SetTitle(_L(<span class="stringliteral">"Camera power on"</span>));
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236 <span class="keywordflow">else</span>
<a name="l00237"></a>00237 {
<a name="l00238"></a>00238 SetTitle(_L(<span class="stringliteral">"no camera found"</span>));
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241
<a name="l00242"></a>00242 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::HandlePointerEventL (
<a name="l00243"></a>00243 <span class="keyword">const</span> TPointerEvent& aPointerEvent )
<a name="l00244"></a>00244 {
<a name="l00245"></a>00245 <span class="keywordflow">if</span> (aPointerEvent.iType == TPointerEvent::EButton1Down)
<a name="l00246"></a>00246 {
<a name="l00247"></a>00247 <span class="comment">// When pointing to screen camera capture picture</span>
<a name="l00248"></a>00248 <span class="keywordflow">if</span> (!iAppUi->IsBackCBA() &&
<a name="l00249"></a>00249 iCameraWrapper && iCameraWrapper->State() == CCameraEngine::EEngineViewFinding)
<a name="l00250"></a>00250 {
<a name="l00251"></a>00251 iCameraShutterFocusing = EFalse;
<a name="l00252"></a>00252 StartFocusing();
<a name="l00253"></a>00253 }
<a name="l00254"></a>00254 <span class="comment">// After captureing, when pointing again to screen camera</span>
<a name="l00255"></a>00255 <span class="comment">// start viewfinder again</span>
<a name="l00256"></a>00256 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!iAppUi->IsBackCBA() &&
<a name="l00257"></a>00257 iCameraWrapper && iCameraWrapper->State() == CCameraEngine::EEngineIdle)
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 CancelCapturedPicture();
<a name="l00260"></a>00260 iAppUi->UseOptionsExitCbaL();
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263 }
<a name="l00264"></a>00264
<a name="l00265"></a>00265 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::SetTitle(<span class="keyword">const</span> TDesC& aTitle)
<a name="l00266"></a>00266 {
<a name="l00267"></a>00267 iTitle.Copy(aTitle);
<a name="l00268"></a>00268 DrawNow();
<a name="l00269"></a>00269 }
<a name="l00270"></a>00270
<a name="l00271"></a>00271 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::SetError( <span class="keyword">const</span> TDesC& aMsg, TInt aVal )
<a name="l00272"></a>00272 {
<a name="l00273"></a>00273 iTitle.Format(aMsg, aVal);
<a name="l00274"></a>00274 DrawNow();
<a name="l00275"></a>00275 }
<a name="l00276"></a>00276
<a name="l00277"></a>00277 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::SetError( <span class="keyword">const</span> TDesC& aMsg, TInt aVal1, TInt aVal2 )
<a name="l00278"></a>00278 {
<a name="l00279"></a>00279 iTitle.Format(aMsg, aVal1, aVal2);
<a name="l00280"></a>00280 DrawNow();
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::CreateBackBufferL()
<a name="l00284"></a>00284 {
<a name="l00285"></a>00285 <span class="comment">// create back buffer bitmap</span>
<a name="l00286"></a>00286 iBackBuffer = <span class="keyword">new</span> (ELeave) CFbsBitmap;
<a name="l00287"></a>00287
<a name="l00288"></a>00288 User::LeaveIfError( iBackBuffer->Create(Size(),EColor16M));
<a name="l00289"></a>00289
<a name="l00290"></a>00290 <span class="comment">// create back buffer graphics context</span>
<a name="l00291"></a>00291 iBackBufferDevice = CFbsBitmapDevice::NewL(iBackBuffer);
<a name="l00292"></a>00292 User::LeaveIfError(iBackBufferDevice->CreateContext(iBackBufferContext));
<a name="l00293"></a>00293 iBackBufferContext->SetPenStyle(CGraphicsContext::ESolidPen);
<a name="l00294"></a>00294
<a name="l00295"></a>00295 iBackBufferContext->SetBrushColor(KRgbBlack);
<a name="l00296"></a>00296 iBackBufferContext->Clear();
<a name="l00297"></a>00297 }
<a name="l00298"></a>00298
<a name="l00299"></a>00299 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::ReleaseBackBuffer()
<a name="l00300"></a>00300 {
<a name="l00301"></a>00301 <span class="keywordflow">if</span> (iBackBufferContext)
<a name="l00302"></a>00302 {
<a name="l00303"></a>00303 <span class="keyword">delete</span> iBackBufferContext;
<a name="l00304"></a>00304 iBackBufferContext = NULL;
<a name="l00305"></a>00305 }
<a name="l00306"></a>00306 <span class="keywordflow">if</span> (iBackBufferDevice)
<a name="l00307"></a>00307 {
<a name="l00308"></a>00308 <span class="keyword">delete</span> iBackBufferDevice;
<a name="l00309"></a>00309 iBackBufferDevice = NULL;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311 <span class="keywordflow">if</span> (iBackBuffer)
<a name="l00312"></a>00312 {
<a name="l00313"></a>00313 <span class="keyword">delete</span> iBackBuffer;
<a name="l00314"></a>00314 iBackBuffer = NULL;
<a name="l00315"></a>00315 }
<a name="l00316"></a>00316 }
<a name="l00317"></a>00317
<a name="l00318"></a>00318 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::MceoCameraReady()
<a name="l00319"></a>00319 {
<a name="l00320"></a>00320 iAppUi->UseOptionsExitCbaL();
<a name="l00321"></a>00321
<a name="l00322"></a>00322 <span class="keywordflow">if</span> (iCameraWrapper->State() == CCameraEngine::EEngineIdle)
<a name="l00323"></a>00323 {
<a name="l00324"></a>00324 <span class="comment">// Prepare camera</span>
<a name="l00325"></a>00325 TRAPD(err,iCameraWrapper->PrepareL(iCaptureSize));
<a name="l00326"></a>00326 <span class="keywordflow">if</span> (err)
<a name="l00327"></a>00327 {
<a name="l00328"></a>00328 SetError(_L(<span class="stringliteral">"Camera prepare error %d"</span>), err);
<a name="l00329"></a>00329 <span class="keywordflow">return</span>;
<a name="l00330"></a>00330 }
<a name="l00331"></a>00331
<a name="l00332"></a>00332 <span class="comment">// Start viewfinder. Viewfinder pictures starts coming into MceoViewFinderFrameReady();</span>
<a name="l00333"></a>00333 TRAPD(err2,iCameraWrapper->StartViewFinderL(iViewFinderSize));
<a name="l00334"></a>00334 <span class="keywordflow">if</span> (err2)
<a name="l00335"></a>00335 {
<a name="l00336"></a>00336 SetError(_L(<span class="stringliteral">"Camera start viewfinder error %d"</span>), err2);
<a name="l00337"></a>00337 <span class="keywordflow">return</span>;
<a name="l00338"></a>00338 }
<a name="l00339"></a>00339
<a name="l00340"></a>00340 SetTitle(_L(<span class="stringliteral">"Camera viewfinder"</span>));
<a name="l00341"></a>00341 }
<a name="l00342"></a>00342 }
<a name="l00343"></a>00343
<a name="l00344"></a>00344 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::Capture()
<a name="l00345"></a>00345 {
<a name="l00346"></a>00346 <span class="comment">// This method is called when picture is focused with camera shutter and pressed whole down</span>
<a name="l00347"></a>00347 <span class="comment">// as taking a new picture</span>
<a name="l00348"></a>00348 <span class="preprocessor"> #ifdef ENABLE_CAMERA_SHUTTER</span>
<a name="l00349"></a>00349 <span class="preprocessor"></span> <span class="keywordflow">if</span> (iCameraWrapper && !iAppUi->IsBackCBA())
<a name="l00350"></a>00350 {
<a name="l00351"></a>00351 <span class="comment">// No focus supported</span>
<a name="l00352"></a>00352 SetTitle(_L(<span class="stringliteral">"Capturing picture"</span>));
<a name="l00353"></a>00353 iCameraWrapper->StopViewFinder();
<a name="l00354"></a>00354 TRAPD(err,iCameraWrapper->CaptureL());
<a name="l00355"></a>00355 <span class="keywordflow">if</span> (err)
<a name="l00356"></a>00356 {
<a name="l00357"></a>00357 SetError(_L(<span class="stringliteral">"Camera capture error %d"</span>), err);
<a name="l00358"></a>00358 }
<a name="l00359"></a>00359 }
<a name="l00360"></a>00360 <span class="preprocessor"> #endif</span>
<a name="l00361"></a>00361 <span class="preprocessor"></span> }
<a name="l00362"></a>00362
<a name="l00363"></a>00363 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::StartFocusing()
<a name="l00364"></a>00364 {
<a name="l00365"></a>00365 <span class="keywordflow">if</span> (iCameraWrapper && iCameraWrapper->State() == CCameraEngine::EEngineViewFinding)
<a name="l00366"></a>00366 {
<a name="l00367"></a>00367 <span class="keywordflow">if</span> (!iCameraWrapper->IsAutoFocusSupported())
<a name="l00368"></a>00368 {
<a name="l00369"></a>00369 <span class="comment">// No focus supported</span>
<a name="l00370"></a>00370 SetTitle(_L(<span class="stringliteral">"Capturing picture"</span>));
<a name="l00371"></a>00371 iCameraWrapper->StopViewFinder();
<a name="l00372"></a>00372 TRAPD(err,iCameraWrapper->CaptureL());
<a name="l00373"></a>00373 <span class="keywordflow">if</span> (err)
<a name="l00374"></a>00374 {
<a name="l00375"></a>00375 SetError(_L(<span class="stringliteral">"Camera capture error %d"</span>), err);
<a name="l00376"></a>00376 }
<a name="l00377"></a>00377 }
<a name="l00378"></a>00378 <span class="keywordflow">else</span>
<a name="l00379"></a>00379 {
<a name="l00380"></a>00380 <span class="comment">// Focusing supported</span>
<a name="l00381"></a>00381 iCameraWrapper->StartFocusL();
<a name="l00382"></a>00382 SetTitle(_L(<span class="stringliteral">"Autofocusing..."</span>));
<a name="l00383"></a>00383 }
<a name="l00384"></a>00384 }
<a name="l00385"></a>00385 }
<a name="l00386"></a>00386
<a name="l00387"></a>00387 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::MceoFocusComplete()
<a name="l00388"></a>00388 {
<a name="l00389"></a>00389 <span class="comment">// CameraEngine state is EEngineIdle</span>
<a name="l00390"></a>00390 SetTitle(_L(<span class="stringliteral">"Focused"</span>));
<a name="l00391"></a>00391
<a name="l00392"></a>00392 <span class="keywordflow">if</span> (iCameraShutterFocusing)
<a name="l00393"></a>00393 {
<a name="l00394"></a>00394 <span class="comment">// Leave as focused. User must press whole camera shutter down for capturing</span>
<a name="l00395"></a>00395 <span class="comment">// then CCameraWrapperExampleAppView::Capture() is called</span>
<a name="l00396"></a>00396 }
<a name="l00397"></a>00397 <span class="keywordflow">else</span>
<a name="l00398"></a>00398 {
<a name="l00399"></a>00399 <span class="comment">// Capture picture after it has focused</span>
<a name="l00400"></a>00400 iCameraWrapper->StopViewFinder();
<a name="l00401"></a>00401 TRAPD(err,iCameraWrapper->CaptureL());
<a name="l00402"></a>00402 <span class="keywordflow">if</span> (err)
<a name="l00403"></a>00403 {
<a name="l00404"></a>00404 SetError(_L(<span class="stringliteral">"Camera capture error %d"</span>), err);
<a name="l00405"></a>00405 }
<a name="l00406"></a>00406 }
<a name="l00407"></a>00407 }
<a name="l00408"></a>00408
<a name="l00409"></a>00409 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::MceoCapturedDataReady( TDesC8* aData )
<a name="l00410"></a>00410 {
<a name="l00411"></a>00411 SetTitle(_L(<span class="stringliteral">"Saving picture..."</span>));
<a name="l00412"></a>00412
<a name="l00413"></a>00413 <span class="keyword">delete</span> iData; iData = NULL;
<a name="l00414"></a>00414 iData = aData->Alloc();
<a name="l00415"></a>00415
<a name="l00416"></a>00416 <span class="keywordflow">if</span> (iCameraWrapper)
<a name="l00417"></a>00417 iCameraWrapper->ReleaseImageBuffer();
<a name="l00418"></a>00418
<a name="l00419"></a>00419 TRAP_IGNORE(iAppUi->UseOptionsBackCbaL());
<a name="l00420"></a>00420
<a name="l00421"></a>00421 StorePicture(iData);
<a name="l00422"></a>00422 }
<a name="l00423"></a>00423
<a name="l00424"></a>00424 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::StorePicture( TDesC8* aData )
<a name="l00425"></a>00425 {
<a name="l00426"></a>00426 <span class="comment">// Create path for filename</span>
<a name="l00427"></a>00427 TFileName path = PathInfo::PhoneMemoryRootPath();
<a name="l00428"></a>00428 path.Append(PathInfo::ImagesPath());
<a name="l00429"></a>00429
<a name="l00430"></a>00430 <span class="comment">// Ensure that path exists</span>
<a name="l00431"></a>00431 BaflUtils::EnsurePathExistsL(iEikonEnv->FsSession(),path);
<a name="l00432"></a>00432
<a name="l00433"></a>00433 <span class="comment">// Get next free filename for the image</span>
<a name="l00434"></a>00434 TFileName fileToSave;
<a name="l00435"></a>00435 TBool fileExists = ETrue;
<a name="l00436"></a>00436 <span class="keywordflow">for</span> (TInt i=1 ; i<100 ; i++)
<a name="l00437"></a>00437 {
<a name="l00438"></a>00438 fileToSave.Copy(path);
<a name="l00439"></a>00439 fileToSave.Append(_L(<span class="stringliteral">"cw_image_"</span>));
<a name="l00440"></a>00440 fileToSave.AppendNum(i);
<a name="l00441"></a>00441 fileToSave.Append(_L(<span class="stringliteral">".jpg"</span>));
<a name="l00442"></a>00442 fileExists = BaflUtils::FileExists(iEikonEnv->FsSession(),fileToSave);
<a name="l00443"></a>00443 <span class="keywordflow">if</span> (!fileExists)
<a name="l00444"></a>00444 {
<a name="l00445"></a>00445 <span class="keywordflow">break</span>;
<a name="l00446"></a>00446 }
<a name="l00447"></a>00447 }
<a name="l00448"></a>00448
<a name="l00449"></a>00449 <span class="comment">// Save file</span>
<a name="l00450"></a>00450 <span class="keywordflow">if</span> (!fileExists)
<a name="l00451"></a>00451 {
<a name="l00452"></a>00452 RFile file;
<a name="l00453"></a>00453 TInt err = file.Create(iEikonEnv->FsSession(),fileToSave,EFileWrite);
<a name="l00454"></a>00454 <span class="keywordflow">if</span> (!err)
<a name="l00455"></a>00455 {
<a name="l00456"></a>00456 file.Write(*aData);
<a name="l00457"></a>00457 file.Close();
<a name="l00458"></a>00458 SetTitle(fileToSave);
<a name="l00459"></a>00459 }
<a name="l00460"></a>00460 <span class="keywordflow">else</span>
<a name="l00461"></a>00461 {
<a name="l00462"></a>00462 SetError(_L(<span class="stringliteral">"File saving error %d"</span>),err);
<a name="l00463"></a>00463 }
<a name="l00464"></a>00464 }
<a name="l00465"></a>00465 <span class="keywordflow">else</span>
<a name="l00466"></a>00466 {
<a name="l00467"></a>00467 SetTitle(_L(<span class="stringliteral">"File not saved, delete old pictures!"</span>));
<a name="l00468"></a>00468 }
<a name="l00469"></a>00469 }
<a name="l00470"></a>00470
<a name="l00471"></a>00471
<a name="l00472"></a>00472 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::MceoCapturedBitmapReady( CFbsBitmap* aBitmap )
<a name="l00473"></a>00473 {
<a name="l00474"></a>00474 <span class="keywordflow">if</span> (iBackBufferContext)
<a name="l00475"></a>00475 {
<a name="l00476"></a>00476 TSize bmpSizeInPixels = aBitmap->SizeInPixels();
<a name="l00477"></a>00477 TInt xDelta = (Rect().Width() - bmpSizeInPixels.iWidth) / 2;
<a name="l00478"></a>00478 TInt yDelta = (Rect().Height() - bmpSizeInPixels.iHeight) / 2;
<a name="l00479"></a>00479 TPoint pos( xDelta, yDelta );
<a name="l00480"></a>00480
<a name="l00481"></a>00481 <span class="comment">// Copy received viewfinder picture to back buffer</span>
<a name="l00482"></a>00482 iBackBufferContext->BitBlt( pos, aBitmap, TRect( TPoint( 0, 0 ), bmpSizeInPixels ));
<a name="l00483"></a>00483
<a name="l00484"></a>00484 <span class="comment">// Update backbuffer into screen </span>
<a name="l00485"></a>00485 SetTitle(_L(<span class="stringliteral">"New picture"</span>));
<a name="l00486"></a>00486 }
<a name="l00487"></a>00487 <span class="keywordflow">if</span> (iCameraWrapper)
<a name="l00488"></a>00488 iCameraWrapper->ReleaseImageBuffer();
<a name="l00489"></a>00489 }
<a name="l00490"></a>00490
<a name="l00491"></a>00491 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::MceoViewFinderFrameReady( CFbsBitmap& aFrame )
<a name="l00492"></a>00492 {
<a name="l00493"></a>00493 <span class="keywordflow">if</span> (iBackBufferContext)
<a name="l00494"></a>00494 {
<a name="l00495"></a>00495 TSize bmpSizeInPixels = aFrame.SizeInPixels();
<a name="l00496"></a>00496 TInt xDelta = (Rect().Width() - bmpSizeInPixels.iWidth) / 2;
<a name="l00497"></a>00497 TInt yDelta = (Rect().Height() - bmpSizeInPixels.iHeight) / 2;
<a name="l00498"></a>00498 TPoint pos( xDelta, yDelta );
<a name="l00499"></a>00499
<a name="l00500"></a>00500 <span class="comment">// Copy received viewfinder picture to back buffer</span>
<a name="l00501"></a>00501 iBackBufferContext->BitBlt( pos, &aFrame, TRect( TPoint( 0, 0 ), bmpSizeInPixels ));
<a name="l00502"></a>00502
<a name="l00503"></a>00503 <span class="comment">// Update backbuffer into screen </span>
<a name="l00504"></a>00504 DrawNow();
<a name="l00505"></a>00505 }
<a name="l00506"></a>00506 <span class="keywordflow">if</span> (iCameraWrapper)
<a name="l00507"></a>00507 iCameraWrapper->ReleaseViewFinderBuffer();
<a name="l00508"></a>00508 }
<a name="l00509"></a>00509
<a name="l00510"></a>00510 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::MceoHandleError( TCameraEngineError aErrorType, TInt aError )
<a name="l00511"></a>00511 {
<a name="l00512"></a>00512 <span class="comment">// NOTE: CameraEngine state seems to go into CCameraEngine::EEngineIdle state</span>
<a name="l00513"></a>00513
<a name="l00514"></a>00514 <span class="keywordflow">if</span> (aErrorType == EErrReserve)
<a name="l00515"></a>00515 {
<a name="l00516"></a>00516 <span class="keywordflow">return</span>; <span class="comment">//-18 comes on application startup, but everything works ok</span>
<a name="l00517"></a>00517 }
<a name="l00518"></a>00518
<a name="l00519"></a>00519 <span class="keywordflow">switch</span> (aErrorType)
<a name="l00520"></a>00520 {
<a name="l00521"></a>00521 <span class="keywordflow">case</span> EErrReserve:
<a name="l00522"></a>00522 {
<a name="l00523"></a>00523 SetError(_L(<span class="stringliteral">"Camera reserved error (%d)"</span>), aError);
<a name="l00524"></a>00524 <span class="keywordflow">break</span>;
<a name="l00525"></a>00525 }
<a name="l00526"></a>00526 <span class="keywordflow">case</span> EErrPowerOn:
<a name="l00527"></a>00527 {
<a name="l00528"></a>00528 SetError(_L(<span class="stringliteral">"Camera power on error (%d)"</span>), aError);
<a name="l00529"></a>00529 <span class="keywordflow">break</span>;
<a name="l00530"></a>00530 }
<a name="l00531"></a>00531 <span class="keywordflow">case</span> EErrViewFinderReady:
<a name="l00532"></a>00532 {
<a name="l00533"></a>00533 SetError(_L(<span class="stringliteral">"Camera viewfinder error (%d)"</span>), aError);
<a name="l00534"></a>00534 <span class="keywordflow">break</span>;
<a name="l00535"></a>00535 }
<a name="l00536"></a>00536 <span class="keywordflow">case</span> EErrImageReady:
<a name="l00537"></a>00537 {
<a name="l00538"></a>00538 SetError(_L(<span class="stringliteral">"Camera image ready error (%d)"</span>), aError);
<a name="l00539"></a>00539 <span class="keywordflow">break</span>;
<a name="l00540"></a>00540 }
<a name="l00541"></a>00541 <span class="keywordflow">case</span> EErrAutoFocusInit:
<a name="l00542"></a>00542 <span class="keywordflow">case</span> EErrAutoFocusMode:
<a name="l00543"></a>00543 <span class="keywordflow">case</span> EErrAutoFocusArea:
<a name="l00544"></a>00544 <span class="keywordflow">case</span> EErrAutoFocusRange:
<a name="l00545"></a>00545 <span class="keywordflow">case</span> EErrAutoFocusType:
<a name="l00546"></a>00546 <span class="keywordflow">case</span> EErrOptimisedFocusComplete:
<a name="l00547"></a>00547 {
<a name="l00548"></a>00548 SetTitle(_L(<span class="stringliteral">"Try focusing again"</span>));
<a name="l00549"></a>00549 <span class="keywordflow">break</span>;
<a name="l00550"></a>00550 }
<a name="l00551"></a>00551 <span class="keywordflow">default</span>:
<a name="l00552"></a>00552 {
<a name="l00553"></a>00553 SetError(_L(<span class="stringliteral">"Error %d (%d)"</span>), aErrorType, aError);
<a name="l00554"></a>00554 <span class="keywordflow">break</span>;
<a name="l00555"></a>00555 }
<a name="l00556"></a>00556 };
<a name="l00557"></a>00557
<a name="l00558"></a>00558 <span class="comment">// Try handle error</span>
<a name="l00559"></a>00559 CancelCapturedPicture(EFalse);
<a name="l00560"></a>00560 iAppUi->UseOptionsExitCbaL();
<a name="l00561"></a>00561 }
<a name="l00562"></a>00562
<a name="l00563"></a>00563 <span class="keywordtype">void</span> CCameraWrapperExampleAppView::MceoHandleOtherEvent( <span class="keyword">const</span> TECAMEvent& <span class="comment">/*aEvent*/</span> )
<a name="l00564"></a>00564 {
<a name="l00565"></a>00565 }
<a name="l00566"></a>00566
<a name="l00567"></a>00567
<a name="l00568"></a>00568 <span class="comment">// End of File</span>
</pre></div></div>
<hr size="1"/><address style="text-align: right;"><small>Generated by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
</body>
</html>