inc/alf/alfviewportlayoutattributesetter.h
branchRCL_3
changeset 26 0e9bb658ef58
parent 0 e83bab7cf002
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/alf/alfviewportlayoutattributesetter.h	Wed Sep 01 12:23:18 2010 +0100
@@ -0,0 +1,249 @@
+/*
+* Copyright (c) 2007 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:   Viewport layout attribute setter header.
+*
+*/
+
+
+#ifndef ALFVIEWPORTLAYOUTATTRIBUTESETTER_H
+#define ALFVIEWPORTLAYOUTATTRIBUTESETTER_H
+
+//includes
+
+//widget model includes
+#include "alf/alfcommonlayoutattributesetter.h"
+
+//osn includes
+#include <osn/osndefines.h>
+
+
+namespace Alf
+    {
+
+/**
+ *  @class AlfViewportLayoutAttributeSetter alfviewportlayoutattributesetter.h
+ *  "alf/alfviewportlayoutattributesetter.h"
+ *
+ *  The implementation of the attribute setter for setting viewport 
+ *  layout attributes.
+ *
+ *  @see IAlfAttributeSetter
+ *
+ *  @lib alfwidgetmodel.lib
+ *  @since S60 ?S60_version
+ *  @status Draft
+ *  @interfaces IAlfAttributeSetter
+ */
+class AlfViewportLayoutAttributeSetter : public AlfCommonLayoutAttributeSetter
+    {
+
+public:
+
+    /**
+     * Constructor.
+     */
+    OSN_IMPORT AlfViewportLayoutAttributeSetter();
+
+    /**
+     * Destructor.
+     */
+    OSN_IMPORT virtual ~AlfViewportLayoutAttributeSetter();
+
+
+    /**
+     * Sets an attribute value in the target visual immediately without a transition.
+     * @exception osncore::AlfVisualException Thrown with error code 
+     *     osncore::EInvalidVisual if aVisual is not viewport layout.
+     * @exception osncore::AlfDataException Thrown with error code 
+     *     osncore::EInvalidVariantDataType if aData  for data attributes is 0.
+     * @exception osncore::AlfDataException Thrown with error code 
+     *     osncore::EIncompleteAttributeValues if the aContainer contains an
+     *     incomplete set of attributes. See language specification on creating
+     *     attributes for viewport layout. 
+     *
+     * @param aVisual The target visual. Doesn't take ownership
+     * @param aContainer The container holding the new value of the attribute.
+     *      Ownership of the object is not transferred.
+     * @param aData Used with data attributes to fetch the data.
+     */
+    OSN_IMPORT virtual void setAttributeValue (
+                                CAlfVisual &aVisual,
+                                AlfAttributeContainer* aContainer,
+                                IAlfMap* aData );
+
+    /**
+     * Depracated! Do not use!
+     * Creates a command to change the value of an attribute in the target
+     * visual gradually with a transition.
+     *
+     * @param aVisual The target visual. Doesn't take ownership
+     * @param aContainer The container holding the new value of the attribute.
+     *      Ownership of the object is not transferred.
+     * @param aData Not used currently.
+     * @param aTransitionTime Time used for the transition.
+     * @param aRefVisual Optional reference visual. If not NULL, the target
+     *      value of the attribute is defined by adding the value
+     *      specific by aContainer to the corresponding attribute
+     *      value in the reference visual.
+     * @ret The command to gradually change the attribute in the target visual.
+     */
+    OSN_IMPORT virtual TAlfCommand* createCommand (
+                                        CAlfVisual& aVisual,
+                                        AlfAttributeContainer* aContainer,
+                                        IAlfMap* aData,
+                                        int aTransitionTime = 0,
+                                        CAlfVisual* aRefVisual = NULL );
+
+    /**
+     * Creates commands to change the given attribute values in the target
+     * visual gradually with a transition. Then sends the commands via the
+     * ALF environment.
+     *
+     * @param aVisual The target visual. Doesn't take ownership
+     * @param aContainer The attribute container holding the attribute value(s)
+     *     used by the attribute setter. Ownership is not transferred.The
+     *     container can hold new values for multiple different attributes, in
+     *     which case several commands are executed.
+     * @param aRefVisual Optional reference visual. If not NULL, the target
+     *     value of the attribute is defined by adding the value specific by 
+     *     aContainer to the corresponding attribute value in the reference
+     *     visual.
+     */
+    OSN_IMPORT virtual void createAndSendCommands (
+                                CAlfVisual& aVisual,
+                                AlfAttributeContainer* aContainer,
+                                CAlfVisual* aRefVisual = NULL );
+
+
+protected:
+
+    /**
+     * Sets a dynamic attribute value in the target visual using transitions
+     * defined in attributes
+     *
+     * @since S60 ?S60_version
+     * @param aVisual The target visual. Doesn't take ownership
+     * @param aAttr The attribute to process. Doesn't take ownership
+     * @param aContainer The container holding attributes. Ownership of the
+     *      object is not transferred.
+     */
+    virtual void handleDynamicAttribute (
+                     CAlfVisual &aVisual,
+                     AlfAttribute& aAttr,
+                     AlfAttributeContainer& aContainer);
+
+    /**
+     * Sets a value for static attribute in the target visual immediately
+     * without a transition using data in map.
+     *
+     * @param aVisual The target visual. Doesn't take ownership
+     * @param aAttr The attribute to process. Doesn't take ownership
+     * @param aContainer The container holding attributes. Ownership of the
+     *      object is not transferred.
+     * @param aData Contains data.Ownership of the object is not transferred.
+     */
+    virtual void handleStaticDataAttribute (
+                     CAlfVisual &aVisual, AlfAttribute& aAttr,
+                     AlfAttributeContainer& aContainer, IAlfMap* aData );
+
+    /**
+     * Sets a value for dynamic attribute value in the target visual using
+     * transitions and data in map.
+     *
+     * @param aVisual The target visual. Doesn't take ownership
+     * @param aAttr The attribute to process. Doesn't take ownership
+     * @param aContainer The container holding attributes. Ownership of the
+     *      object is not transferred.
+        * @param aData Contains data.Ownership of the object is not transferred.
+     */
+    virtual void handleDynamicDataAttribute (
+                     CAlfVisual &aVisual, AlfAttribute& aAttr,
+                     AlfAttributeContainer& aContainer, IAlfMap* aData);
+
+    /**
+     * Sets a value of a static attribute to target visual immediately without
+     * a transition.
+     *
+     * @param aVisual The target visual. Doesn't take ownership
+     * @param aAttr The attribute to process. Doesn't take ownership
+     * @param aContainer The container holding attributes. Ownership of the
+     *      object is not transferred.
+     * @param aData Contains data.Ownership of the object is not transferred.
+     */
+    virtual void handleStaticAttribute (
+                     CAlfVisual &aVisual, AlfAttribute& aAttr,
+                     AlfAttributeContainer& aContainer);
+
+private:
+
+    /**
+     * Sets a dynamic attribute value in the target visual using transitions
+     * defined in attributes
+     *
+     * @since S60 ?S60_version
+     * @param aVisual The target visual. Doesn't take ownership
+     * @param aAttr The attribute to process. Doesn't take ownership
+     * @param aContainer The container holding attributes. Ownership of the
+     *      object is not transferred.
+     * @param aImmediate if true, the change is immediate and time value of
+     *      the attribute is not used.
+     */
+    bool doHandleDynamicAttribute (
+            CAlfVisual &aVisual, AlfAttribute& aAttr,
+            AlfAttributeContainer& aContainer, bool aImmediate = false);
+
+    /**
+     * Sets a value for dynamic attribute value in the target visual using
+     * transitions and data in map.
+     *
+     * @param aVisual The target visual. Doesn't take ownership
+     * @param aAttr The attribute to process. Doesn't take ownership
+     * @param aContainer The container holding attributes. Ownership of the
+     *      object is not transferred.
+     * @param aData Contains data.Ownership of the object is not transferred.
+     * @param aImmediate if true, the change is immediate and time value of
+     *      the attribute is not used.
+     */
+    bool doHandleDynamicDataAttribute (
+             CAlfVisual &aVisual, AlfAttribute& aAttr,
+             AlfAttributeContainer& aContainer, IAlfMap* aData,
+             bool aImmediate = false);
+
+    /**
+    * Gets the data from map pointed by attribute's field name.
+    *
+    * @param aAttr The attribute to process. Doesn't take ownership
+    * @param aData Contains data.Ownership of the object is not transferred.
+    *
+    * @return pointer to the data from map pointed by attribute's field name.
+    */
+    IAlfVariantType* getData(AlfAttribute& aAttr, IAlfMap* aData);
+
+    /**
+    * gets the time from attribute safely.
+    *
+    * @param aAttr The attribute to process. Doesn't take ownership
+    * @param aImmediate if true, returns 0 else the time set for the attribute
+    */
+    int getTime(const AlfAttribute& aAttr, bool aImmediate = false);
+
+private: // data
+    };
+
+    } // namespace Alf
+
+#endif // ALFVIEWPORTLAYOUTATTRIBUTESETTER_H
+// End of file
+
+