idlehomescreen/inc/xncontroladapter.h
changeset 0 f72a12da539e
child 9 f966699dea19
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/inc/xncontroladapter.h	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,453 @@
+/*
+* Copyright (c) 2002-2004 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:
+* Xuikon control adapter header file
+*
+*/
+
+#ifndef XNCONTROLADAPTER_H
+#define XNCONTROLADAPTER_H
+
+// System includes
+#include <e32base.h>
+#include <coecntrl.h>
+#include <aknappui.h>
+#include <aknlongtapdetector.h>
+
+// Forward declarations
+class CXnNodePluginIf;
+class CXnComponent;
+class CXnControlAdapterImpl;
+class CXnProperty;
+class CXnNode;
+
+// Class declaration
+/**
+ * Control adapter interface class
+ *
+ * @ingroup group_xnlayoutengine
+ * @lib xnlayoutengine.lib
+ * @since Series 60 3.1
+ */
+class CXnControlAdapter : public CCoeControl,
+                          public MCoeControlObserver,
+                          public MAknLongTapDetectorCallBack
+    {
+public:
+    // Data types
+    enum TModeEvent
+        {
+        EEventNone = 0,
+        EEventBackground,
+        EEventLight,
+        EEventDisplay,
+        EEventVisibility
+        };
+
+    /**
+     * Two-phased constructor.
+     */
+    IMPORT_C static CXnControlAdapter* NewL( CXnNodePluginIf& aNode );
+
+    /**
+     * Destructor.
+     */
+    IMPORT_C virtual ~CXnControlAdapter();
+
+public:
+    // New functions
+
+    /**
+     * Sets component pointer.
+     *
+     * @since Series 60 3.1
+     * @param aComponent Component pointer.
+     */
+    IMPORT_C void SetComponent( CXnComponent* aComponent );
+
+    /**
+     * Set component visibility
+     *
+     * @since Series 60 3.1
+     * @param aVisible ETrue for making visible, EFalse for making invisible
+     */
+    IMPORT_C void SetVisible( TBool aVisible );
+
+    /**
+     * Gets the component pointer.
+     *
+     * @since Series 60 3.1
+     * @return Component pointer.
+     */
+    IMPORT_C CXnComponent* Component();
+
+    /**
+     * Checks if the control should be drawn, according to visibility and
+     * display properties.
+     *
+     * @since Series 60 3.1
+     * @return ETrue if drawing is ok, EFalse otherwise
+     */
+    IMPORT_C TBool IsDrawingAllowed() const;
+
+    /**
+     * Gets content bitmaps. Ownership is not transferred.
+     *
+     * @since Series 60 3.1
+     * @param aBitmap Bitmap to draw
+     * @param aMask Mask to use
+     */
+    IMPORT_C void ContentBitmaps( CFbsBitmap*& aBitmap, CFbsBitmap*& aMask );
+
+    /**
+     * Sets content bitmaps. Ownership is transferred.
+     *
+     * @since Series 60 3.1
+     * @param aBitmap Bitmap to draw
+     * @param aMask Mask to use
+     */
+    IMPORT_C void SetContentBitmaps( CFbsBitmap* aBitmap, CFbsBitmap* aMask );
+
+    /**
+     * Sets content bitmaps. Ownership is transferred.
+     *
+     * @since Series 60 3.1
+     * @param aBitmapUrl Url of the bitmap to draw
+     * @param aMaskUrl Url of the bitmap mask to use
+     */
+    IMPORT_C void SetContentBitmaps( const TDesC& aBitmapUrl,
+        const TDesC& aMaskUrl );
+
+    /**
+     * Load a bitmap from the server. Ownership is transferred.
+     *
+     * @since Series 60 3.1
+     * @param aBitmapUrl Url of the bitmap to load
+     * @return Bitmap
+     */
+    IMPORT_C CFbsBitmap* LoadBitmap( const TDesC& aBitmapUrl );
+
+    /**
+     * Load a bitmap and mask from the server. Ownership is transferred.
+     *
+     * @since Series 60 3.1
+     * @param aBitmapUrl Url of the bitmap to load
+     * @param aMaskUrl Url of the mask to load, if any
+     * @param aBitmap  Fetched bitmap
+     * @param aMask Fetched mask
+     */
+    IMPORT_C void GetBitmapAndMask(
+        const TDesC& aBitmapUrl,
+        const TDesC& aMaskUrl,
+        CFbsBitmap*& aBitmap,
+        CFbsBitmap*& aMask );
+
+    /**
+     * Skin change notification.
+     *
+     * @since Series 60 3.1
+     */
+    IMPORT_C virtual void SkinChanged();
+
+    /**
+     * Draws the control using a client-specified gc.
+     *
+     * @param aRect TRect to draw
+     * @param aGc Gc used for drawing
+     */
+    IMPORT_C virtual void Draw( const TRect& aRect, CWindowGc& aGc ) const;
+
+    /**
+     * Enter power save mode. This is done when application goes to background
+     * or lights go off.
+     * Derived classes should override this function and stop animations, timers
+     * etc. when the function is called.
+     */
+    IMPORT_C void EnterPowerSaveModeL( TModeEvent aEvent = EEventNone );
+
+    /*
+     * Template method, called by EnterPowerSaveModeL(). Additional
+     * implementations are done in derived classes.
+     */
+    IMPORT_C virtual void DoEnterPowerSaveModeL( TModeEvent aEvent );
+
+    /**
+     * Exit power save mode. This is done when application comes to foreground
+     * or lights go on.
+     * Derived classes should override this function and restart animations,
+     * timers etc. when the function is called.
+     */
+    IMPORT_C void ExitPowerSaveModeL( TModeEvent aEvent = EEventNone );
+
+    /*
+     * Template method, called by ExitPowerSaveModeL(). Additional
+     * implementations are done in derived classes.
+     */
+    IMPORT_C virtual void DoExitPowerSaveModeL( TModeEvent aEvent );
+
+    /**
+     * Sets the application local zoom
+     *
+     * @param aZoom application local zoom
+     * @since 3.1
+     */
+    IMPORT_C virtual void SetLocalUiZoomL( TAknUiZoom aZoom );
+
+    /**
+     * This called to measure adaptive content dimensions
+     *
+     * @since 3.2
+     * @param aAvailableSize where the component's content must fit
+     * @return The measure content dimensions
+     */
+    IMPORT_C virtual TSize MeasureAdaptiveContentL(
+        const TSize& aAvailableSize );
+
+
+    /**
+     * Add a child adapter
+     * @since Series 60 3.1
+     * @param aChild Child adapter
+     * @param aNode Child layout node.
+     */
+    void AppendChildL(CXnControlAdapter& aChild, CXnNode& aNode);
+
+
+    /**
+     * Resets the stylus state counter, so that the next tap causes 1st stylus
+     * action.
+     *
+     * @since 3.2
+     */
+    IMPORT_C void ResetStylusCounter();
+
+    /**
+     * Sets the control blank
+     *
+     * @since S60 5.1
+     * @param aBlank, ETrue sets blank, EFalse resets blank
+     */
+    IMPORT_C void SetBlank( TBool aBlank );
+
+    /**
+     * Gets the control's long tap detector
+     *
+     * @since 5.0
+     */
+    IMPORT_C CAknLongTapDetector* LongTapDetector() const;
+
+    /**
+     * Gets the control's associated window.
+     *
+     * @since 3.2
+     */
+    inline RWindow& Window() const;
+
+    /**
+     * Gets the component of this control which is grabbing the pointer.
+     *
+     * @since 5.0
+     */
+    inline CCoeControl* GrabbingComponent() const;
+
+public:
+    /**
+     * From CCoeControl.
+     * Handles key events.
+     *
+     * @since Series 60 3.1
+     * @param aKeyEvent Key event.
+     * @param aType Event type.
+     * @return Key response
+     */
+    IMPORT_C TKeyResponse OfferKeyEventL(
+        const TKeyEvent& aKeyEvent,
+        TEventCode aType );
+
+    /**
+     * From CCoeControl.
+     * Handles control events.
+     *
+     * @since Series 60 3.1
+     * @param aControl Control.
+     * @param aEventType Event type.
+     */
+    IMPORT_C void HandleControlEventL(
+        CCoeControl* aControl,
+        TCoeEvent aEventType );
+
+    /**
+     * From CCoeControl.
+     * Handles pointer events
+     *
+     * This method must always be called, even when it's overridden by derived
+     * classes
+     *
+     * @param aPointerEvent pointer event
+     */
+    IMPORT_C void HandlePointerEventL( const TPointerEvent& aPointerEvent );
+
+    /**
+     * From CCoeControl.
+     * Handles pointer events
+     *
+     * This method must always be called, even when it's overridden by derived
+     * classes
+     *
+     * @param aDrawNow Contains the value that was passed to it by SetFocus().      
+     */    
+    IMPORT_C void FocusChanged( TDrawNow aDrawNow );
+    
+    /**
+     * From MAknLongTapDetectorCallBack.
+     * Handles the long tap events.
+     *
+     * @since Series 60 3.1
+     * @param aPenEventLocation Long tap event location relative to parent
+     *        control.
+     * @param aPenEventScreenLocation Long tap event location relative to
+     *        screen.
+     */
+    IMPORT_C void HandleLongTapEventL(
+        const TPoint& aPenEventLocation,
+        const TPoint& aPenEventScreenLocation );
+
+protected:
+    // New functions
+
+    /**
+     * C++ default constructor.
+     */
+    IMPORT_C CXnControlAdapter();
+
+    /**
+     * Two-phased constructor.
+     */
+    IMPORT_C void ConstructL( CXnNodePluginIf& aNode );
+
+    /**
+     * Const-version of getting the component pointer.
+     * For internal use only.
+     *
+     * @since Series 60 3.1
+     * @return Component pointer.
+     */
+    CXnComponent* Component() const;
+
+    /**
+     * Draws content image.
+     *
+     * @since Series 60 3.1
+     */
+    IMPORT_C void DrawContentImage() const;
+
+protected:
+    /**
+     * From CCoeControl.
+     * Draws the control.
+     *
+     * This method must always be called, even when it's overridden by derived
+     * classes
+     *
+     * @param aRect TRect to draw
+     */
+    IMPORT_C virtual void Draw( const TRect& aRect ) const;
+
+    /**
+     * From CCoeControl.
+     * Return a child control by index.
+     *
+     * This method must not be overridden by derived classes
+     *
+     * @param aIndex Index of the child to return
+     * @return Control at the given index
+     */
+
+    IMPORT_C CCoeControl* ComponentControl( TInt aIndex ) const;
+
+    /**
+     * From CCoeControl.
+     * Return count of children.
+     *
+     * This method must not be overridden by derived classes.
+     *
+     * @return Count of children
+     */
+    IMPORT_C TInt CountComponentControls() const;
+
+    /**
+     * From CCoeControl.
+     * Size change notification
+     */
+    IMPORT_C virtual void SizeChanged();
+
+public:
+    /**
+     * From CCoeAppUiBase.
+     * Informs the components about the screen layout switch.
+     */
+    IMPORT_C virtual void HandleScreenDeviceChangedL();
+
+    /**
+     * Informs the components about the property change.
+     */
+    IMPORT_C void HandlePropertyChangeL( CXnProperty* aProperty = NULL );
+
+    /*
+     * Template method, called by HandlePropertyChangeL().
+     * Additional implementations are done in derived classes.
+     */
+    IMPORT_C virtual void DoHandlePropertyChangeL(
+        CXnProperty* aProperty = NULL );
+
+    /**
+     * Sets the state of the long tap animation
+     */
+    IMPORT_C void EnableLongTapAnimation( const TBool aAnimation );
+
+    /**
+     * Remove all child adapters
+     */
+    void RemoveChildAdapters();
+
+    /**
+     * Get child adapter list i.e which are not window owning controls
+     */
+    RPointerArray< CXnControlAdapter >& ChildAdapters();
+
+    /**
+     * Determines wheter control refuses focus loss
+     */            
+    virtual TBool RefusesFocusLoss() const { return EFalse; };
+        
+private:
+    // Data
+
+    /**
+     * class implementation.
+     * Own.
+     */
+    CXnControlAdapterImpl* iImpl;
+
+    /**
+     * Avkon long tap detector implementation.
+     * Own.
+     */
+    CAknLongTapDetector* iLongTapDetector;
+    };
+
+// Inline functions
+#include "xncontroladapter.inl"
+
+#endif