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QHdrCamera


			
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef QNATIVECAMERA_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define QNATIVECAMERA_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include &lt;QDeclarativeItem&gt;</span>
<a name="l00005"></a>00005 <span class="preprocessor">#include &lt;QVideoFrame&gt;</span>
<a name="l00006"></a>00006 <span class="preprocessor">#include &lt;QCamera&gt;</span>
<a name="l00007"></a>00007 <span class="preprocessor">#include &lt;QCameraImageCapture&gt;</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include &lt;QMediaRecorder&gt;</span>
<a name="l00009"></a>00009 
<a name="l00010"></a>00010 QT_USE_NAMESPACE
<a name="l00011"></a>00011 
<a name="l00012"></a>00012 <span class="keyword">class </span><a class="code" href="class_video_surface.html" title="Receives the frames from the camera.">VideoSurface</a>;
<a name="l00013"></a>00013 
<a name="l00014"></a>00014 <span class="comment">// Observer design pattern to provide the view finder frame for the CustomCamera</span>
<a name="l00015"></a>00015 <span class="comment">// object.</span>
<a name="l00016"></a><a class="code" href="class_frame_observer.html">00016</a> <span class="keyword">class </span><a class="code" href="class_frame_observer.html">FrameObserver</a> {
<a name="l00017"></a>00017 <span class="keyword">public</span>:
<a name="l00018"></a>00018     <span class="keyword">virtual</span> <span class="keywordtype">bool</span> updateFrame(<span class="keyword">const</span> QVideoFrame &amp;frame) = 0;
<a name="l00019"></a>00019 };
<a name="l00020"></a>00020 
<a name="l00021"></a><a class="code" href="class_q_native_camera.html">00021</a> <span class="keyword">class </span><a class="code" href="class_q_native_camera.html">QNativeCamera</a> : <span class="keyword">public</span> QDeclarativeItem, <a class="code" href="class_frame_observer.html">FrameObserver</a>
<a name="l00022"></a>00022 {
<a name="l00023"></a>00023     Q_OBJECT
<a name="l00024"></a>00024 
<a name="l00025"></a>00025     Q_ENUMS(State)
<a name="l00026"></a>00026 
<a name="l00027"></a>00027     <span class="comment">// State properties</span>
<a name="l00028"></a><a class="code" href="class_q_native_camera.html#a3b610f0a042f08cd727f8dd66056c4a5">00028</a>     Q_PROPERTY(State cameraState READ cameraState NOTIFY cameraStateChanged)
<a name="l00029"></a>00029 
<a name="l00030"></a>00030     <span class="comment">// Devices properties</span>
<a name="l00031"></a><a class="code" href="class_q_native_camera.html#a072ef24257a0303cee1ac3bcb047b41b">00031</a>     Q_PROPERTY(QStringList availableDevices READ availableDevices)
<a name="l00032"></a>00032 
<a name="l00033"></a><a class="code" href="class_q_native_camera.html#af61b5ac179b61b40d20dff8c4af9b9ac">00033</a>     Q_PROPERTY(QString currentDevice READ currentDevice NOTIFY currentDeviceChanged)
<a name="l00034"></a><a class="code" href="class_q_native_camera.html#ab36ab7a242df937a23c1d984066b6477">00034</a>     Q_PROPERTY(<span class="keywordtype">bool</span> frontCamera READ frontCamera NOTIFY frontCameraChanged)
<a name="l00035"></a>00035     Q_PROPERTY(<span class="keywordtype">bool</span> preview READ preview WRITE setPreview)
<a name="l00036"></a>00036     Q_PROPERTY(QSize resolution READ resolution WRITE setResolution NOTIFY resolutionChanged)
<a name="l00037"></a>00037     Q_PROPERTY(qreal exposureCompensation  READ exposureCompensation  WRITE setExposureCompensation  NOTIFY exposureCompensationChanged)
<a name="l00038"></a>00038 
<a name="l00039"></a>00039 public:
<a name="l00040"></a>00040 
<a name="l00041"></a>00041     enum State {
<a name="l00042"></a>00042         ActiveState = QCamera::ActiveState,
<a name="l00043"></a>00043         LoadedState = QCamera::LoadedState,
<a name="l00044"></a>00044         UnloadedState = QCamera::UnloadedState
<a name="l00045"></a>00045     };
<a name="l00046"></a>00046 
<a name="l00047"></a>00047     <span class="keyword">explicit</span> <a class="code" href="class_q_native_camera.html">QNativeCamera</a>(QDeclarativeItem *parent = 0);
<a name="l00048"></a>00048     <a class="code" href="class_q_native_camera.html#abfc170b57570038fec4d887d42538567">~QNativeCamera</a>();
<a name="l00049"></a>00049 
<a name="l00050"></a>00050     QStringList availableDevices() <span class="keyword">const</span>;
<a name="l00051"></a>00051 
<a name="l00052"></a>00052     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_q_native_camera.html#a9aeab214a1c120887f57bd95a44ad6bd">paint</a>(QPainter *painter,
<a name="l00053"></a>00053                        <span class="keyword">const</span> QStyleOptionGraphicsItem *option,
<a name="l00054"></a>00054                        QWidget *widget);
<a name="l00055"></a>00055 
<a name="l00056"></a>00056     <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="class_q_native_camera.html#a63468deb8a46f520dde1e18059379024">updateFrame</a>(<span class="keyword">const</span> QVideoFrame &amp;frame);
<a name="l00057"></a>00057 
<a name="l00058"></a>00058     QSize resolution();
<a name="l00059"></a>00059     <span class="keywordtype">void</span> setResolution(QSize&amp; value);
<a name="l00060"></a>00060 
<a name="l00061"></a>00061     qreal exposureCompensation();
<a name="l00062"></a>00062     <span class="keywordtype">void</span>  setExposureCompensation(qreal);
<a name="l00063"></a>00063 
<a name="l00064"></a>00064     <span class="keywordtype">bool</span> preview();
<a name="l00065"></a>00065     <span class="keywordtype">void</span> setPreview(<span class="keywordtype">bool</span> value);
<a name="l00066"></a>00066 
<a name="l00067"></a>00067 <span class="keyword">protected</span>:
<a name="l00068"></a>00068     <span class="keywordtype">void</span> <a class="code" href="class_q_native_camera.html#aab95bb9ec64ead45e414f47bd48a7738">destroyResources</a>();
<a name="l00069"></a>00069     State cameraState() <span class="keyword">const</span>;
<a name="l00070"></a>00070     QString currentDevice() <span class="keyword">const</span>;
<a name="l00071"></a>00071     <span class="keywordtype">bool</span> frontCamera() <span class="keyword">const</span>;
<a name="l00072"></a>00072 
<a name="l00073"></a>00073 signals:
<a name="l00074"></a>00074     <span class="keywordtype">void</span> resolutionChanged(QSize resolution);
<a name="l00075"></a>00075 
<a name="l00076"></a>00076     <span class="keywordtype">void</span> digitalZoomChanged();
<a name="l00077"></a>00077     <span class="keywordtype">void</span> maximumDigitalZoomChanged();
<a name="l00078"></a>00078 
<a name="l00079"></a>00079     <span class="keywordtype">void</span> exposureCompensationChanged();
<a name="l00080"></a>00080     <span class="keywordtype">void</span> exposureModeChanged();
<a name="l00081"></a>00081     <span class="keywordtype">void</span> supportedExposureModesChanged();
<a name="l00082"></a>00082 
<a name="l00083"></a>00083     <span class="keywordtype">void</span> flashModeChanged();
<a name="l00084"></a>00084     <span class="keywordtype">void</span> supportedFlashModesChanged();
<a name="l00085"></a>00085 
<a name="l00086"></a>00086     <span class="keywordtype">void</span> locked();
<a name="l00087"></a>00087     <span class="keywordtype">void</span> lockFailed();
<a name="l00088"></a>00088 
<a name="l00089"></a>00089     <span class="keywordtype">void</span> isoValueChanged();
<a name="l00090"></a>00090     <span class="keywordtype">void</span> supportedIsoValuesChanged();
<a name="l00091"></a>00091 
<a name="l00092"></a>00092     <span class="keywordtype">void</span> imageSaved(<span class="keyword">const</span> QString &amp;fileName);
<a name="l00093"></a>00093 
<a name="l00094"></a>00094     <span class="keywordtype">void</span> cameraStateChanged();
<a name="l00095"></a>00095 
<a name="l00096"></a>00096     <span class="keywordtype">void</span> whiteBalanceModeChanged();
<a name="l00097"></a>00097     <span class="keywordtype">void</span> supportedWhiteBalanceModesChanged();
<a name="l00098"></a>00098     <span class="comment">//void sharpeningLevelChanged();</span>
<a name="l00099"></a>00099     <span class="comment">//void contrastChanged();</span>
<a name="l00100"></a>00100 
<a name="l00101"></a>00101     <span class="keywordtype">void</span> currentDeviceChanged();
<a name="l00102"></a>00102     <span class="keywordtype">void</span> frontCameraChanged();
<a name="l00103"></a>00103 
<a name="l00104"></a>00104     <span class="comment">//void imageAnalyzerChanged();</span>
<a name="l00105"></a>00105 
<a name="l00106"></a>00106 <span class="keyword">public</span> slots:
<a name="l00107"></a>00107     <span class="keywordtype">void</span> <a class="code" href="class_q_native_camera.html#af02f8272683ff70effccebd08368bfc7">start</a>(<span class="keyword">const</span> QString &amp;device);
<a name="l00108"></a>00108     <span class="keywordtype">void</span> <a class="code" href="class_q_native_camera.html#a8a63728fa3e0c9ef2c6bbf575ae40016">stop</a>();
<a name="l00109"></a>00109 
<a name="l00110"></a>00110     <span class="keywordtype">void</span> cameraStateChanged(QCamera::State state);
<a name="l00111"></a>00111     <span class="keywordtype">void</span> <a class="code" href="class_q_native_camera.html#a6def766930abeef19b7a82c033bfaad5">handleImageSaved</a>(<span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keyword">const</span> QString &amp;fileName);
<a name="l00112"></a>00112     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_q_native_camera.html#aae08dff3f15cb94b3718e44e95fa0dae">captureImage</a>();
<a name="l00113"></a>00113     <span class="keyword">virtual</span> <span class="keywordtype">void</span> imageAvailable(<span class="keywordtype">int</span>,QVideoFrame);
<a name="l00114"></a>00114     <span class="keyword">virtual</span> <span class="keywordtype">void</span> imageCaptured ( <span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keyword">const</span> QImage &amp; preview );
<a name="l00115"></a>00115     <span class="keyword">virtual</span> <span class="keywordtype">void</span> imageExposed(<span class="keywordtype">int</span>);
<a name="l00116"></a>00116 
<a name="l00117"></a>00117     <span class="keywordtype">void</span> <a class="code" href="class_q_native_camera.html#a146aaeb465ab0a0e64a790ad7a5b9ca1">emitImageSavedSignal</a>();
<a name="l00118"></a>00118 
<a name="l00119"></a>00119 <span class="keyword">protected</span>:
<a name="l00120"></a>00120     qreal m_exposureCompensation;
<a name="l00121"></a>00121 
<a name="l00122"></a>00122     QCamera *m_camera; <span class="comment">// Owned</span>
<a name="l00123"></a>00123 
<a name="l00124"></a>00124     QString m_currentDevice;
<a name="l00125"></a>00125     <span class="keywordtype">bool</span> m_frontCamera;
<a name="l00126"></a>00126     <span class="comment">// Still image capturing</span>
<a name="l00127"></a>00127     QCameraImageCapture *m_cameraImageCapture; <span class="comment">// Owned</span>
<a name="l00128"></a>00128 
<a name="l00129"></a>00129     <span class="comment">// Video capturing</span>
<a name="l00130"></a>00130     QMediaRecorder *m_mediaRecorder; <span class="comment">// Owned</span>
<a name="l00131"></a>00131 
<a name="l00132"></a>00132     <span class="comment">// For showing view finder image</span>
<a name="l00133"></a>00133     <a class="code" href="class_video_surface.html" title="Receives the frames from the camera.">VideoSurface</a> *m_videoSurface; <span class="comment">// Owned</span>
<a name="l00134"></a>00134 
<a name="l00135"></a>00135     <span class="comment">// For storing the latest frame</span>
<a name="l00136"></a>00136     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_processedFrameCounter;
<a name="l00137"></a>00137     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_incomingFrameCounter;
<a name="l00138"></a>00138     QImage m_imageFrame;
<a name="l00139"></a>00139     QImage i_preview;
<a name="l00140"></a>00140     <span class="keywordtype">bool</span> m_preview;
<a name="l00141"></a>00141 
<a name="l00142"></a>00142     <span class="comment">// File to be opened in the gallery.</span>
<a name="l00143"></a>00143     QString m_galleryImage;
<a name="l00144"></a>00144     QSize m_resolution;
<a name="l00145"></a>00145 };
<a name="l00146"></a>00146 
<a name="l00147"></a>00147 <span class="preprocessor">#endif // QNATIVECAMERA_H</span>
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