diff -r fa1df4b99609 -r ebe688cedc25 messagingapp/msgui/appengine/inc/conversationsmodel.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingapp/msgui/appengine/inc/conversationsmodel.h	Tue Aug 31 15:11:31 2010 +0300
@@ -0,0 +1,225 @@
+/*
+ * 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:
+ *
+ */
+
+#ifndef CONVERSATIONS_MODEL_H
+#define CONVERSATIONS_MODEL_H
+
+// INCLUDES
+#include <QObject>
+#include <QStandardItemModel>
+#include <ccsdefs.h>
+#include <sqldb.h>
+#include <QCache>
+#include <HbIcon>
+
+// FORWARD DECLARATIONS
+class CCsConversationEntry;
+class ConversationMsgStoreHandler;
+class UniDataModelLoader;
+class UniDataModelPluginInterface;
+
+/**
+ * This class implements the model of the model/view framework.
+ * The model holds data for the conversations fetched from the
+ * server.
+ *
+ * Data from server is mapped to UI via Model
+ *
+ */
+
+class ConversationsModel: public QStandardItemModel
+{
+Q_OBJECT
+
+public:
+
+    /**
+     * Constructor
+     */
+    explicit ConversationsModel(ConversationMsgStoreHandler* msgStoreHandler, QObject* parent = 0);
+
+    /**
+     * Destructor
+     */
+    virtual ~ConversationsModel();
+
+    /**
+     * Method for mapping the data in the Model to the UI
+     * @param index index for which data needs to be fetched
+     * @param role defined for the data
+     * @return QVariant as the data
+     */
+    QVariant data(const QModelIndex& index, int role) const;
+
+    /**
+     * Add a new row to the conversations model.
+     * Overwrite the row if the message already exists.
+     * @param entry, CCsConversationEntry
+     * @param dynamicUpdate , true if it is a dynamic update event
+     */
+    void addRow(const CCsConversationEntry& entry, bool dynamicUpdate = false);
+
+    /**
+     * Delete a row from conversations model.
+     * @param msgId, Message Id
+     */
+    void deleteRow(int msgId);
+    
+    /*
+     * Get SQL DB handle
+     * @param isOpen, set to true if open, check this before using the handle
+     */
+    RSqlDatabase& getDBHandle(TBool& isOpen);
+
+    /*
+     * Clears the pixmap cache & model
+     */
+    void clearModel();
+    
+    void emitConversationViewEmpty();
+
+signals:
+
+    /*
+     * Signal emitted to retrieve the pixmap icon
+     */
+    void retrievePreviewIcon(int msgId, QString& filepath) const;
+    
+    void conversationViewEmpty();
+
+private slots:
+
+    /*
+     * Slot which handles retrievePreviewIcon signal
+     */
+    void updatePreviewIcon(int msgId, QString& filePath);
+
+private:
+
+    /**
+     * Populate an item in model from CCsConversationEntry.
+     * @param item, QStandardItem
+     * @param entry, CCsConversationEntry
+     */
+    void populateItem(QStandardItem& item, const CCsConversationEntry& entry);
+
+    /**
+     * Populate MMS related data into item.
+     * @param item, QStandardItem
+     * @param entry, CCsConversationEntry
+     */
+    void handleMMS(QStandardItem& item, const CCsConversationEntry& entry);
+    
+    /**
+     * Populate MMS Notification related data into item.
+     * @param item, QStandardItem
+     * @param entry, CCsConversationEntry
+     */
+    void handleMMSNotification(QStandardItem& item, 
+        const CCsConversationEntry& entry);
+
+    /**
+     * Populate BT message related data into item.
+     * @param item, QStandardItem
+     * @param entry, CCsConversationEntry
+     */
+    void handleBlueToothMessages(QStandardItem& item, 
+        const CCsConversationEntry& entry);
+
+    /**
+     * Populate Bio message related data into item.
+     * @param item, QStandardItem
+     * @param entry, CCsConversationEntry
+     */
+    void handleBioMessages(QStandardItem& item, 
+        const CCsConversationEntry& entry);
+
+    /**
+     * Populates preview icon into the previewicon cache
+     * @param pixmap, QPixmap
+     * @param filePath, filepath to be used if icon is not in Db
+     * @param msgId, key to pixmap in previewicon cache
+     * @param inDb, indicates if icon was available in Db (or) not
+     */    
+    void setPreviewIcon(QPixmap& pixmap, QString& filePath, int msgId,
+        bool inDb);
+
+    /**
+     * Get the preview icon item if available in pixmap cache / create
+     * and return the preview icon
+     * @param msgId, key to pixmap in previewicon cache
+     * @param filePath, filepath to be used if icon is not in cache
+     */
+    HbIcon* getPreviewIconItem(int msgId, QString& filepath) const;
+    
+    /**
+     * Check if a MMS is forwardable or not
+     * @param messageId, message id
+     * @return true/false
+     */
+    bool validateMsgForForward(qint32 messageId);
+    
+    /*
+     * Handle Vcard messages
+     * @param item, QStandardItem
+     * @param msgId
+     */
+    void handleVCard(QStandardItem& item, int msgId);
+
+private:
+
+    /**
+     * Msg Store Handler
+     * Not Own
+     */
+    ConversationMsgStoreHandler* mMsgStoreHandler;
+
+    /**
+     * UniDataModelLoader object
+     * Own
+     */
+    UniDataModelLoader* iDataModelPluginLoader;
+
+    /**
+     * Mms Data model plugin interface
+     * Not Own
+     */
+    UniDataModelPluginInterface* iMmsDataPlugin;
+
+    /**
+     * BioMsg Data model plugin interface
+     * Not Own
+     */
+    UniDataModelPluginInterface* iBioMsgPlugin;
+    
+    /*
+     * SQL DB handle
+     */
+    RSqlDatabase iSqlDb;
+
+    /*
+     * DB open.
+     */
+    TBool iSqlDbOpen;
+
+    /*
+     *  preview-icon cache
+     */
+    QCache<int, HbIcon> previewIconCache;
+};
+
+#endif // CONVERSATIONS_MODEL_H