author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 21 Jun 2010 16:15:51 +0300 | |
branch | RCL_3 |
changeset 17 | 514d98f21c43 |
parent 0 | e83bab7cf002 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Header for presentation elements - horizontal slider. |
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* |
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*/ |
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#ifndef MUL_SLIDERHORIZONTAL_H |
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#define MUL_SLIDERHORIZONTAL_H |
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//INCLUDES |
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#include <alf/alfanchorlayout.h> |
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#include "alf/alfelement.h" |
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#include <alf/alfimagevisual.h> |
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#include <alf/alflayout.h> |
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#include <alf/alfvisual.h> |
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#include <alf/ialfwidgeteventhandler.h> |
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#include <AknLayout2Def.h> |
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#include <mul/imulsliderwidget.h> |
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#include "mulslidermodel.h" |
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#include "imulsliderbaseelementinternal.h" |
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namespace duiuimodel |
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{ |
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class DuiNode; |
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} |
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using namespace osncore; |
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namespace Alf |
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{ |
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struct MulSliderPos; |
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// Forward declarations |
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class IAlfWidgetEventHandler; |
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class CAlfWidgetControl; |
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class MulSliderLongTapTimer; |
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/** |
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* Default Base Element of the Slider. |
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*/ |
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class MulSliderHorizontal : |
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public AlfElement, |
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public IAlfWidgetEventHandler, |
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public IMulSliderBaseElementInternal, |
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public MAlfBitmapProvider |
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{ |
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public: |
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/** |
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* Constructor |
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* @param aControl Widget control. |
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* @param aName Name of the item element. |
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* @param aCustomData . |
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* @param mNode . |
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* @since S60 ?S60_version |
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*/ |
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MulSliderHorizontal ( |
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CAlfWidgetControl& aControl, |
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const char* aName, |
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AlfCustomInitDataBase* aCustomData=NULL); |
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/** |
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* Destructor |
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*/ |
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virtual ~MulSliderHorizontal(); |
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/** |
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* bitmap provider. |
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* @since S60 ?S60_version |
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* @param aId bitmap ID. |
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* @param aBitmap bitmap. |
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* @param aMaskBitmap mask for the bitmap. |
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* @return |
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*/ |
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void ProvideBitmapL (TInt aId, |
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CFbsBitmap *& aBitmap, |
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CFbsBitmap *& aMaskBitmap); |
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/** |
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* From IAlfInterfaceBase. |
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* Getter for interfaces provided by the Button widget class. |
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* @since S60 ?S60_version |
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* @param aType A descriptor to identify the type of the queried interface. |
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* @return The queried interface, or NULL if the interface is not |
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* supported or available. |
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*/ |
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virtual IAlfInterfaceBase* makeInterface(const IfId& aType); |
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//void createVisualization(); |
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//-------------------------------------------------------------------------- |
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//Overriden Apis from IAlfWidgetEventHandlers |
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//-------------------------------------------------------------------------- |
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// |
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|
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/** |
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* Used to identify event handlers that are capable of handling |
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* a specified key or custom event. |
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* Pointer event handlers cannot be identified directly, |
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* since they are dependent on the presentation. |
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* Therefore, pointer event handlers should be associated with |
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* a custom event ID that can be used to simulate the actual pointer event. |
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* @since S60 ?S60_version |
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* @param aEvent The event. |
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* @param aControl |
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* @return <code>ETrue</code> if the event can be processed. |
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* Otherwise <code>EFalse</code>. |
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*/ |
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bool accept(CAlfWidgetControl& aControl, const TAlfEvent& aEvent) const; |
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|
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|
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|
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/** |
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* @see IAlfWidgetEventHandler |
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*/ |
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virtual AlfEventHandlerType eventHandlerType(); |
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|
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/** |
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* @see IAlfWidgetEventHandler |
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*/ |
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virtual AlfEventHandlerExecutionPhase eventExecutionPhase(); |
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/** |
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* Called when an input event is being offered to this event handler. |
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* The return value is used to indicate if the event was processed. |
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* Processed events may not be offered to other event handlers. |
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* @since S60 ?S60_version |
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* @param aControl The parent control of this event handler. |
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* @param aEvent The event. |
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* @return <code>ETrue</code> if the event was processed. |
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* Otherwise <code>EFalse</code>. |
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*/ |
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|
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|
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virtual AlfEventStatus offerEvent( |
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CAlfWidgetControl& aControl, |
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const TAlfEvent& aEvent ); |
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|
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/** |
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* Defines the widget states, where the event handler is active. |
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* By default, if this method is not called, the event handler is expected |
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* to be active in all states. |
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* @param aStates A bitmask defining the widget states, where the event |
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* handler is active. The low 16 bits are reserved for the states |
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* defined by the framework in <TODO: add reference>. The high 16 bits are |
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* available for states defined by the client code. |
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*/ |
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void setActiveStates(unsigned int aStates); |
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|
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/** |
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* Sets AlfWidgetEventHandlerInitData to event handler. |
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* @param aData A data structure which contains for example id of the event |
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* handler. |
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*/ |
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virtual void setEventHandlerData( |
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const AlfWidgetEventHandlerInitData& /*aData*/ ) |
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{ |
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|
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} |
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|
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/** |
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* Returns AlfWidgetEventHandlerInitData. |
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* @return A pointer to AlfWidgetEventHandlerInitData structure |
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* which contains for example id of the event handler. |
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*/ |
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virtual AlfWidgetEventHandlerInitData* eventHandlerData() |
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{ |
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return NULL; |
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} |
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|
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/** |
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* Friend class for timer functions. |
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* |
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*/ |
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friend class MulSliderLongTapTimer; |
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|
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// From IAlfScrollBarBaseElementInternal |
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/** |
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* Notified when the base layout of scrollbar changes . |
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* Relayouts all the visuals with respect to the new size. |
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*/ |
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void baseLayoutSizeChanged(); |
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|
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/** |
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* Initialises slider data |
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*/ |
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void initializeSliderData(); |
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/** |
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* Updates visualization |
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*/ |
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void updateVisualization(); |
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/** |
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* Updates text visualization |
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*/ |
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void updateTextVisualization(); |
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/** |
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* handles Long tap event |
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*/ |
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AlfEventStatus handleLongTap(); |
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/** |
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* Changes Thumb image |
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*/ |
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void changeThumbImage(bool aPressed = false); |
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/** |
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* Gets thumb minimum length. |
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*/ |
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void getThumbMinMaxLength(); |
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/** |
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* Creates visualization |
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*/ |
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void createVisualization(sliderTemplate aTemplateId); |
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// Creates Slider Template 3 ( Zoom Slider) |
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//void createZoomSlider(); |
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/** |
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* create a Dual progressive slider |
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*/ |
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void createDualProgressiveSlider(); |
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private: // New Methods |
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/** |
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* SetBackgroundBrush |
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* |
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*/ |
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void SetBackgroundBrush(); |
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/** |
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* Retrieves the data for the slider from the model into structure |
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*/ |
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void RetrieveData(); |
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/** |
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* Sets the position of the handle |
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* |
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* @param aCurrTick The new position of the handle |
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*/ |
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void SetThumbPosition();//int aCurrTick); |
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/** |
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* Sets the text for the counter visual |
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* |
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* @param aNewString The counter visual text value |
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* @throw Invalid Argument incase there is no layout at zeroth position |
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*/ |
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void SetTextLabels(const UString& aNewString); |
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/** |
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* Sets the image for the image visual |
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* |
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* @param aImagePath The path of the new image |
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* @throw Invalid Argument incase there is no layout at zeroth position |
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*/ |
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void SetNewImagePath(const UString& aImagePath); |
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/** |
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* Sets the image for the image visual from thr provided texture id |
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* |
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* @param aTextureId The texture id of the new image |
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* @throw Invalid Argument incase there is no layout at zeroth position |
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*/ |
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void SetNewImageTexture(const int aTextureId); |
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|
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/** |
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* Notifies about the initiation of pointer down event on the visual. |
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* |
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* @returns true after the drag has started |
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*/ |
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//bool StartDrag(CAlfVisual *aDragVisual); |
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|
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/** |
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* Sets the starting position of the pointer doen event and will |
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* start ignoring the visual for further possible pointer events |
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* |
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* @param aOperation true to signify start of drag. |
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*/ |
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//void Begin(TBool aOperation); |
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|
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/** |
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* Checks if the drag event is On |
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* |
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* @returns true if the drag event is on. |
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*/ |
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//bool BeingDragged() const; |
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|
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/** |
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* Clears the flag for ignoring the visual for pointer events. |
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*/ |
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//void StopDrag(); |
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|
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/** |
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* Handles the key events only. |
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* |
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* @param aEvent event to be handled |
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* @returns if the event was handled or not |
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*/ |
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AlfEventStatus HandleKeyEvents(const TAlfEvent& aEvent); |
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|
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/** |
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* Handles the pointer events only. |
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* |
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* @aControl The alfwidget control |
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* @param aEvent Event to be handled |
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* @returns if the event was handled or not |
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*/ |
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AlfEventStatus HandlePointerEvents( TAlfEvent* aEvent); |
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/** |
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* Handles pointer down event |
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*/ |
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AlfEventStatus handlePointerDownEvent(TAlfEvent * aPntrEvent); |
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/** |
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* Checks if the slider visual is hit |
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* |
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* @param aVisual Visual that has been touched. |
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* @param aPointerPt position of the pointer |
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* @param aEvent Event to be handled |
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* @returns true/false if the visual is touched |
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*/ |
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bool IsSldVisualHit(const CAlfVisual& aVisual,TPoint aPointerPt,const TAlfEvent& aEvent); |
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|
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/** |
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* Checks if the hit point is within the tappable area |
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* |
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* @param aPointerPt position of the pointer |
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* @param aEvent Event to be handled |
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* @returns true/false if the point is in tappable area |
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*/ |
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bool InTappableArea(const TPoint& aPointerPt,const TAlfEvent& aEvent) ; |
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|
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/** |
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* Converts pixel to value according to range of slider |
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* @param aPixel The pixel value passed |
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* @param aMaxPixel The maximum value to be considered for calculation |
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* returns rounded int value after conversion |
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*/ |
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int PixelToValue(int aPixel,int aMaxPixel); |
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|
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/** |
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* Converts value to pixel according to range of slider |
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* @param aVal The value passed |
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* @param aMaxPixel The maximum value to be considered for calculation |
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* returns rounded int pixel after conversion |
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*/ |
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int ValueToPixel(int aVal, int aMaxPixel); |
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|
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/** |
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* Creates the new image for the given path |
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* @param aImageVisual The visual to which the image is to be set |
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* @param aPath The new path of the image |
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* @returns Returns the new image to be set |
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*/ |
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TAlfImage CreateImageFromImagePath( const CAlfImageVisual& aImageVisual, const TPtrC8& aPath ); |
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|
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/** |
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* Sets the new value for max and min range considering min range as zero.Its helpful |
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* for the negative min range values or greater than zero min range values. |
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* |
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* @param aMap Contains data.Used to get the data from current model. |
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*/ |
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void NormalizeRange(/*IAlfMap& aMap*/); |
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|
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/** |
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* Stores the value for x and y coordinate of baselayout position in structure. |
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* Later the values from the structure is used to get/set the relative values |
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* according to the new position of baselayout. |
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*/ |
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void RelativePos(); |
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void mirrorPointerPosition(const TPoint& aPointerPos ); |
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|
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/* |
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* Change volume icon |
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*/ |
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void VolumeIconChange(bool aFlag,int aValue); |
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private: |
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/** |
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* IsSliderVisual |
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*/ |
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bool IsSliderVisual(CAlfVisual *aVisual); |
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|
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|
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/** returns pixel values |
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*/ |
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void ConvertDataToPixels(); |
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|
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/** |
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* updateModelPrimaryValue |
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* |
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*/ |
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void updateModelPrimaryValue(int aNewPosValue); |
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/** |
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* Start drag |
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*/ |
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bool initializeThumbDragData( const TPoint& aPointerPos ); |
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|
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/** |
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* Stop drag |
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*/ |
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bool stopDrag(); |
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|
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|
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/** |
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* Handles pointer Events |
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*/ |
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void handlePointerUpEvent(); |
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/** |
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* Snaps primary value to ticks |
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*/ |
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void snapPrimaryValueToTicks(); |
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/** |
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* Set images for three part track |
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* |
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*/ |
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void setTrackImage(); |
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/** |
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* Checks if the track visual is Hit |
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*/ |
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AlfEventStatus trackVisualHit(CAlfVisual * aHitVisual); |
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/** |
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* layout the visuals |
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* |
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*/ |
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void layoutVisuals(sliderTemplate aTemplateId); |
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private: // Class Data |
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|
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// auto_ptr< MulSliderHorizontalImpl>mData; // Owned |
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struct MulHorizontalSliderDataImpl* mData; |
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// auto_ptr<SliderDefaultLCTBaseElementData> mData; |
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auto_ptr<MulSliderPos> mPosData; // Structure for storing current and previous values |
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// const UString& mStyle; |
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auto_ptr<MulSliderLongTapTimer> mLongTapTimer; |
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CAlfVisual *mDragVisual; |
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MulSliderModel * mSliderModel; |
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MulSliderWidget * mSliderWidget; |
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}; // end of class AlfScrollBarDefaultLCTBaseElement |
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|
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} // end of namespace Alf |
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|
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#endif //MUL_SLIDERHORIZONTAL_H |
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//End Of File |