qtmobility/plugins/contacts/symbian/src/transform/cnttransformthumbnail.cpp
changeset 4 90517678cc4f
child 11 06b8e2af4411
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/plugins/contacts/symbian/src/transform/cnttransformthumbnail.cpp	Mon May 03 13:18:40 2010 +0300
@@ -0,0 +1,182 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "cnttransformthumbnail.h"
+#include "cntmodelextuids.h"
+
+#include "qcontactthumbnail.h"
+#include "cntsymbiantransformerror.h"
+
+#include <QPixmap>
+#include <QImage>
+
+const TSize KMaxThumbnailSize(80, 96);
+
+CntTransformThumbnail::CntTransformThumbnail() :
+    m_thumbnailCreator(0)
+{
+}
+
+CntTransformThumbnail::~CntTransformThumbnail()
+{
+    delete m_thumbnailCreator;
+}
+
+QList<CContactItemField *> CntTransformThumbnail::transformDetailL(const QContactDetail &detail)
+{
+    if(detail.definitionName() != QContactThumbnail::DefinitionName)
+        User::Leave(KErrArgument);
+
+    QList<CContactItemField *> fieldList;
+
+    //cast to thumbnail
+    const QContactThumbnail &thumbnail(static_cast<const QContactThumbnail&>(detail));
+
+    if(!thumbnail.thumbnail().isNull()) {
+        // lazy instantiation
+        if(!m_thumbnailCreator) {
+            m_thumbnailCreator = new (ELeave) CntThumbnailCreator();
+        }
+
+        // Scaling is done before converting to CFbsBitmap because
+        // toSymbianCFbsBitmap may generate a duplicate of the bitmap data
+        // Note: scaling to thumbnail may take some time if the image is big
+        // TODO: aspect ratio?
+        QPixmap scaled = QPixmap::fromImage(thumbnail.thumbnail().scaled(KMaxThumbnailSize.iWidth, KMaxThumbnailSize.iHeight));
+        CFbsBitmap* bitmap = scaled.toSymbianCFbsBitmap();
+        CleanupStack::PushL(bitmap);
+
+        m_thumbnailCreator->addThumbnailFieldL(&fieldList, bitmap, KMaxThumbnailSize);
+        CleanupStack::Pop(bitmap); // ownership transferred
+    }
+
+    return fieldList;
+}
+
+QContactDetail *CntTransformThumbnail::transformItemField(const CContactItemField& field, const QContact &contact)
+{
+	Q_UNUSED(contact);
+
+    QContactThumbnail *thumbnail = new QContactThumbnail();
+
+    if (field.ContentType().ContainsFieldType(KUidContactFieldPicture)
+        || field.ContentType().ContainsFieldType(KUidContactFieldVCardMapJPEG)) {
+        // use the existing QContactAvatar (if available) in case of a pixmap
+        // field.
+        CContactStoreField* storage = field.StoreStorage();
+        QImage image;
+        HBufC8 *theThing = storage->Thing();
+        QByteArray bytes((char*)theThing->Ptr(), theThing->Length());
+        bool loaded = image.loadFromData(bytes, "JPG");
+        if (loaded) {
+            thumbnail->setThumbnail(image);
+        } else {
+            User::Leave(KErrInvalidContactDetail);
+        }
+    }
+
+    return thumbnail;
+}
+
+bool CntTransformThumbnail::supportsField(TUint32 fieldType) const
+{
+    bool ret = false;
+    if (fieldType == KUidContactFieldPicture.iUid
+        // Used as "extra mapping/extra field type" by thumbnail data fields
+        || fieldType == KUidContactFieldVCardMapJPEG.iUid) {
+        ret = true;
+    }
+    return ret;
+}
+
+bool CntTransformThumbnail::supportsDetail(QString detailName) const
+{
+    bool ret = false;
+    if (detailName == QContactThumbnail::DefinitionName) {
+        ret = true;
+    }
+    return ret;
+}
+
+QList<TUid> CntTransformThumbnail::supportedSortingFieldTypes(QString /*detailFieldName*/) const
+{
+    // Sorting not supported
+    return QList<TUid>();
+}
+
+
+/*!
+ * Checks whether the subtype is supported
+ *
+ * \a subType The subtype to be checked
+ * \return True if this subtype is supported
+ */
+bool CntTransformThumbnail::supportsSubType(const QString& /*subType*/) const
+{
+    // XXX todo
+    return false;
+}
+
+/*!
+ * Returns the filed id corresponding to a field
+ *
+ * \a fieldName The name of the supported field
+ * \return fieldId for the fieldName, 0  if not supported
+ */
+quint32 CntTransformThumbnail::getIdForField(const QString& /*fieldName*/) const
+{
+    // XXX todo
+    return 0;
+}
+
+/*!
+ * Modifies the detail definitions. The default detail definitions are
+ * queried from QContactManagerEngine::schemaDefinitions and then modified
+ * with this function in the transform leaf classes.
+ *
+ * \a definitions The detail definitions to modify.
+ * \a contactType The contact type the definitions apply for.
+ */
+void CntTransformThumbnail::detailDefinitions(QMap<QString, QContactDetailDefinition> &definitions, const QString& contactType) const
+{
+    Q_UNUSED(contactType);
+    Q_UNUSED(definitions);
+    // Don't need to munge the definition
+}