author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:56:02 +0200 | |
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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: Widget interface with utilities for slider widget. |
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* |
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*/ |
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|
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#ifndef I_MUL_SLIDERWIDGET_H |
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#define I_MUL_SLIDERWIDGET_H |
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|
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//WidgetModel includes |
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#include <alf/ialfwidget.h> |
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#include <alf/alfevent.h> |
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#include <alf/alfwidgetevents.h> |
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#include <alf/ialfwidgetfactory.h> |
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#include <mul/imulslidermodel.h> |
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#include <alf/alflayout.h> |
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#include<alf/ialfwidgeteventhandler.h> |
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//osn includes |
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#include <osn/osndefines.h> |
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#include <osn/ustring.h> |
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|
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namespace Alf |
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{ |
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namespace mulsliderwidget |
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{ |
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/** |
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* @namespace mulsliderwidget |
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* |
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* ident specifies the unique identifier for the grid widget. |
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*/ |
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static const IfId ident = |
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{ |
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0, "mulsliderwidget" |
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}; |
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static const Utf8* const KBaseElementName = "BaseElement"; |
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} |
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|
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|
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|
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/** |
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* The data which can be used as last (optional) paramenter of |
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* IAlfWidgetFactory::createWidget function while creating the slider widget |
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* imperatively. If this data is not passed, default values are used |
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* to create visualization. |
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* |
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*/ |
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class MulSliderInitData : public AlfCustomInitDataBase |
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{ |
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public: |
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/** |
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* mBaseElementLoadId visualization base element is created |
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* using Load ID. |
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*/ |
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const char* mBaseElementLoadId; |
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|
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/* mBaseElementData pointed to baseElement custom data |
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* All baseelement related data are in this class |
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*/ |
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|
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AlfCustomInitDataBase *mBaseElementData; |
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}; |
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|
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|
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/** |
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* Interface for the slider widget. |
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* |
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* |
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* Default visualization of slider contains following components. |
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* <ul> |
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* <li>Handle (The position of the handle shows the current tick position)</li> |
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* <li>Track (Place holder for Handle)</li> |
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* </ul> |
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* |
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* |
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* A slider widget is used along with photos,coverflow and list widget. |
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* <ul> |
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* <li> template 1 is used i.e. in 2D coverflow as a navigational component. |
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* |
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* <li> template 3 is used i.e. in Photos as a pop-up zoom slider. |
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* |
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* <li> template 7 is used i.e. in Video Centre list view as a progressive |
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* downloading track counter/progress bar. |
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* There is no potrait version of this template. |
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* |
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* </ul> |
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* The communication between slider and the widgets happens by means of an |
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* event ETypePrimaryValueChange from slider and in response widgets directly |
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* update slider's model. |
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* Slider handles both Key and Pointer Events. |
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* |
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* KeyEvents : EStdKeyRightArrow,EStdKeyLeftArrow,EEventKeyDown,EEventKeyUp. |
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* PointerEvents : EButton1Down,EDrag. |
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* |
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* |
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*/ |
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class IMulSliderWidget: public IAlfWidget |
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{ |
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public: |
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/** |
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* Get the type of widget. |
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* |
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* @return The type of widget |
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*/ |
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static const IfId& type() |
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{ |
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return mulsliderwidget::ident; |
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} |
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/** |
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* Gets the Base Element Name. |
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* |
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* @return The base element's name |
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*/ |
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static inline const char* baseElementName() |
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{ |
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return mulsliderwidget::KBaseElementName; |
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} |
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/** |
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* Get the model for widget. |
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* |
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* @return model of the slider widget |
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*/ |
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virtual IMulSliderModel& SliderModel() = 0; |
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|
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/** |
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* Set the transparency for the background of the slider widget. |
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* |
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* @param True, to set background as transparent |
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* @param False, to set background as opaque |
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*/ |
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virtual void MakeTransparent( bool aTransparent ) = 0; |
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/** |
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* Enable/Disable key handling . |
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* |
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* @param aVal: True, to handle keyevents by Application |
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* False, to handle keyevents as defined in the control |
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*/ |
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virtual void SetHandleKeyEvent( bool aVal ) = 0; |
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/** |
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* Hide or Show widget . |
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* |
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* @param aShow: True, Shows the widget |
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* False, Hides the widget |
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* @param aTransitionTime: Transition time to show/Hide. |
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*/ |
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virtual void ShowWidget(bool aShow, int aTransitionTime =0) = 0; |
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/** |
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* Returns the state of the Widget(Hide/show). |
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* |
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*/ |
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virtual bool IsHidden() = 0; |
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|
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/** |
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* Returns the container layout. |
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* |
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*/ |
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virtual const CAlfLayout& ContainerLayout() = 0; |
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/** |
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* Add an observer to widget inorder to get event notifications |
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* from the widget. Widget can have multiple observersers. |
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* |
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* @param aObserver Observer of widget. |
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**/ |
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virtual void AddEventHandler( IAlfWidgetEventHandler& aObserver) = 0; |
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/** |
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* Remove an observer to widget |
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* |
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* @param aObserver Observer of widget. |
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*/ |
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virtual void RemoveEventHandler( IAlfWidgetEventHandler& aObserver) = 0; |
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/** |
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* Destructor. |
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*/ |
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virtual ~IMulSliderWidget() {} |
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}; |
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} // namespace Alf |
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#endif // I_MUL_SLIDERWIDGET_H |
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//End Of File |