inc/alf/alflinevisualattributesetter.h
branchRCL_3
changeset 26 0e9bb658ef58
parent 0 e83bab7cf002
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/alf/alflinevisualattributesetter.h	Wed Sep 01 12:23:18 2010 +0100
@@ -0,0 +1,267 @@
+/*
+* 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:   Line visual attribute setter Header.
+*
+*/
+
+
+#ifndef ALFLINEVISUALATTRIBUTESETTER_H
+#define ALFLINEVISUALATTRIBUTESETTER_H
+
+#include <osn/osndefines.h>
+#include "alf/alfcommonvisualattributesetter.h"
+
+class CAlfCurvePath;
+class CAlfLineVisual;
+
+namespace Alf
+    {
+
+class AlfLineVisualAttributeSetterImpl;
+
+/** @class AlfLineVisualAttributeSetter alflinevisualattributesetter.h 
+ *  "alf/alflinevisualattributesetter.h"
+ *  The implementation of the attribute setter.
+ *
+ *  @interfaces IAlfAttributeSetter
+ *  @lib alfwidgetmodel.lib
+ *  @since S60 ?S60_version
+ *  @status Draft
+ */
+class AlfLineVisualAttributeSetter : public AlfCommonVisualAttributeSetter
+    {
+public:
+
+    /**
+     * Constructor.
+     *
+	 * @exception std::bad_alloc     
+     * @param aType Type of the attribute setter.
+     */
+    OSN_IMPORT AlfLineVisualAttributeSetter();
+
+    /**
+     * Destructor.
+     */
+    OSN_IMPORT virtual ~AlfLineVisualAttributeSetter();
+
+    /**
+     * Sets an attribute value in the target visual immediately without
+     * a transition.
+     *
+     * @exception osncore::AlfVisualException Thrown with the error code 
+     *     osncore::EInvalidVisual when supplied visual is not a line visual.
+     *
+     * @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.
+     */
+    OSN_IMPORT virtual void setAttributeValue(
+        CAlfVisual &aVisual,
+        AlfAttributeContainer* aContainer,
+        IAlfMap* aData);
+
+    /**
+     * Deprecated! 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 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 an dynamic attribute value in the target visual using transitions
+     * defined in attributes
+     *
+     * @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 any transition using data in map.
+     *
+     * @exception osncore::AlfDataException Thrown with the error code 
+     *     osncore::ECommonError when empty attribute for line visual 
+     *     is supplied .
+     * @exception osncore::AlfAttributeException Thrown with the error code 
+     *     osncore::EInvalidAttribute when wrong attribute for line visual 
+     *     is supplied .
+     * @exception osncore::AlfAttributeException Thrown with the error code 
+     *     osncore::EIncompleteAttributeValues when all values of an attribute
+     *     for line visual are not supplied .
+     * @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.
+     *
+     * @exception osncore::AlfDataException Thrown with the error code 
+     *     osncore::ECommonError when empty attribute for line visual 
+     *     is supplied .
+     * @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
+     * any transition.
+     *
+     * @exception osncore::AlfAttributeException Thrown with the error code 
+     *     osncore::EInvalidAttribute when wrong attribute data for line visual
+     *     is supplied .
+     * @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 handleStaticAttribute (
+        CAlfVisual &aVisual,
+        AlfAttribute& aAttr,
+        AlfAttributeContainer& aContainer);
+
+private:
+
+    /**
+     * Creates and returns a toolkit defined mappping function based on the
+     * attribute content.
+     * The int value-mapping function mapping is the following:
+     * 0 - KConstMappingFunction
+     * 1 - KLinearMappingFunction
+     * 2 - KSineMappingFunction
+     * 3 - KCosineMappingFunction
+     * @param aAttribute Attribute containing the deciding int value and data
+     *                   required for construction of the mapping function.
+     * @param aEnv       Environment
+     * @result The mapping function pointer
+     */
+    MAlfMappingFunction* getMappingFunction(
+        AlfAttribute& aAttribute ,
+        CAlfEnv& aEnv);
+
+    /**
+     * Creates and returns a toolkit defined mappping function based on the
+     * container content.
+     * The int value-mapping function mapping is the following:
+     * 0 - KConstMappingFunction
+     * 1 - KLinearMappingFunction
+     * 2 - KSineMappingFunction
+     * 3 - KCosineMappingFunction
+     * @param aContainer Container containing the deciding int value and data
+     *                   required for construction of the mapping function.
+     * @param aEnv       Environment
+     * @result The mapping function pointer
+     */
+    MAlfMappingFunction* getMappingFunctionFromContainer(
+        IAlfContainer* aContainer,
+        CAlfEnv& aEnv);
+
+
+    /**
+     * Gets the path from the line visual or creates it if does not exist
+     * @param aLineVisual Line Visual
+     * @result The curvepath
+     */
+    CAlfCurvePath* getCurvePath(CAlfLineVisual* aLineVisual);
+
+    /**
+     * Check if data in the attribute is int or float.
+     * Return the value as a float value
+     *
+     * @param aAttr The attribute containing the value
+     * @param aIndex The index of the value to be checked
+     * return Content of the attribute
+     */
+    float floatOrInt(const AlfAttribute& aAttr, int aIndex);
+
+    /**
+     * Check if data in the variant type is int or float.
+     * Return the value as a float value
+     *
+     * @param aData The variant type containing the value
+     * return Content of the variant type
+     */
+    float floatOrIntFromData(IAlfVariantType* aData);
+
+
+
+private: // data
+    auto_ptr<AlfLineVisualAttributeSetterImpl> mImpl;
+    };
+
+    } // namespace Alf
+
+#endif // ALFLINEVISUALATTRIBUTESETTER_H
+