--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraxui/cxengine/tsrc/unit/system_include/thumbnailmanager_qt.h Tue Aug 31 15:03:46 2010 +0300
@@ -0,0 +1,113 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: copy of normally used "system" file for thumbnailmanager for qt
+*
+*/
+
+#ifndef THUMBNAILMANAGER_QT_H
+#define THUMBNAILMANAGER_QT_H
+
+#include <qobject>
+#include <QPixmap.h>
+#include <QStringList>
+#include <QTimer>
+
+
+class ThumbnailManager : public QObject
+ {
+ Q_OBJECT
+
+public:
+
+ /**
+ * Constructor
+ *
+ * @param parentPtr parent
+ */
+ ThumbnailManager( QObject* parentPtr = NULL );
+
+ /**
+ * Destructor
+ */
+ virtual ~ThumbnailManager();
+
+ /**
+ * Get a thumbnail for an object file. If a thumbnail already exists, it
+ * is loaded and if a thumbnail does not exist, it is created
+ * transparently. If thumbnail loadinf fails thumbnailReady signal is emited
+ * with null pixmap and error code.
+ *
+ * @param fileName Source object or file
+ * @param clientData Pointer to arbitrary client data.
+ * This pointer is not used by the API for
+ * anything other than returning it in the
+ * ThumbnailReady signal.
+ * @param priority Priority for this operation
+ * @return Thumbnail request ID or -1 if request failed. This can be used to
+ * cancel the request or change priority.
+ * The ID is specific to this tnm
+ * instance and may not be shared with other
+ * instances.
+ */
+ int getThumbnail(const QString& fileName, void * clientData = NULL,
+ int priority = 0);
+
+ /**
+ * Set a thumbnail for an object file generated from pixmap delivered.
+ * thumbnailReady() signal will be emited when the operation is complete.
+ *
+ * @param source QImage from which the thumbnail will be created
+ * @param fileName file name
+ * @param clientData Pointer to arbitrary client data.
+ * This pointer is not used by the API for
+ * anything other than returning it in the
+ * ThumbnailReady callback.
+ * @param priority Priority for this operation
+ * @return Thumbnail request ID or -1 if request failed. This can be used to
+ * cancel the request or change priority.
+ *
+ */
+ int setThumbnail( const QImage& source, const QString& fileName,
+ void * clientData = NULL, int priority = 0 );
+
+ /**
+ * Cancel a thumbnail operation.
+ *
+ * @param id Request ID for the operation to be cancelled.
+ * @return true if cancelling was successful.
+ */
+ bool cancelRequest(int id);
+
+
+signals:
+ /**
+ * Final thumbnail bitmap generation or loading is complete.
+ *
+ * @param pixmap An object representing the resulting thumbnail.
+ * @param clientData Client data
+ * @param id Request ID for the operation
+ * @param errorCode error code
+ */
+ void thumbnailReady( QPixmap , void * , int , int );
+
+private slots:
+ void emulateThumbnailReady();
+
+private:
+ int mCurrentThumbnailId;
+ QList<int> mThumbnailManagerIds;
+ QTimer mTimer;
+};
+
+#endif // THUMBNAILMANAGER_QT