--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/activepalette/Inc/ActivePalette2ModelObserver.h	Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,209 @@
+/*
+* 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:  Active Palette model observers*
+*/
+
+
+/**
+ * @file ActivePalette2ModelObserver.h
+ * Active Palette model observers
+ */
+
+#ifndef _ACTIVE_PALETTE_2_MODEL_OBSERVER_H
+#define _ACTIVE_PALETTE_2_MODEL_OBSERVER_H
+
+class CActivePalette2Item;
+class MActivePalette2Observer;
+
+
+/**
+ * Model observer interface. Used by the model to update the renderer.
+ */
+class MActivePalette2ModelObserver
+    {
+public: 
+    /**
+     * Called when a new tooltip is about to be shown for the first time. This allows the renderer
+     * to pre-render the tooltip if necessary
+     * @return The width, in pixels, of the entire tooltip
+     */
+    virtual TInt TooltipUpdated() = 0;
+
+    /**
+     * Called when the items have been updated.
+     */
+    virtual void ItemsUpdated() = 0;
+
+    /**
+     * Called when the palette-appearance animation needs to be updated
+     */
+    virtual void PaletteAppearingUpdated() = 0;
+
+    /**
+     * Called when an item animation needs to be updated
+     * @param aScreenPos The screen position of the item
+     * @param aItem pointer to the item object
+     * @param aAnimFrame The frame to be displayed
+     */
+    virtual void ItemAnimated(TInt aScreenPos, CActivePalette2Item* aItem, TInt aAnimFrame) = 0;
+
+    /**
+     * Called when an item's animation is complete
+     * @param aScreenPos The screen position of the item
+     * @param aItem pointer to the item object
+     */
+    virtual void ItemAnimationComplete(TInt aScreenPos, CActivePalette2Item* aItem) = 0;
+
+    /**
+     * Called when a tooltip should appear or disappear
+     */
+    virtual void ShowTooltipUpdated() = 0;
+
+    /**
+     * Should return the currently registered observer, or NULL if none.
+     * @return The AP observer
+     */
+	virtual MActivePalette2Observer* APObserver() const = 0;
+    };
+    
+    
+/**
+ * Timer-style callbacks for tooltip animation
+ */
+class MActivePalette2TooltipTimerObserver
+    {
+public: 
+    /**
+     * Called when the tooltip animation needs to be updated
+     */
+    virtual void TooltipAnimated() = 0;
+    };
+    
+
+/**
+ * Timer-style callbacks for focus-change animation
+ */
+class MActivePalette2FocusTimerObserver
+    {
+public: 
+    /**
+     * Called when a new item has been focused
+     */    
+    virtual void FocusUpdated() = 0;
+    
+    /**
+     * Called when the focus-change animation needs to be updated
+     */
+    virtual void FocusAnimated() = 0;
+    };
+    
+    
+/**
+ * Timer-style callbacks for item-scroll animation
+ */
+class MActivePalette2ItemScrollTimerObserver
+    {
+public: 
+    /**
+     * Called when an item-scroll animation needs to be updated
+     */
+    virtual void ItemsScrolled() = 0;
+    };
+    
+    
+/**
+ * Timer-style callbacks for appearance animation
+ */
+class MActivePalette2AppearanceTimerObserver
+    {
+public: 
+    /**
+     * Called when the palette-appearance animation needs to be updated
+     */
+    virtual void PaletteAppearingAnimated() = 0;
+    };
+    
+
+/**
+ * Descriptive-style callbacks for tooltip animation
+ */
+class MActivePalette2TooltipDescriptiveObserver
+    {
+public: 
+    /**
+     * Called when a tooltip animation is required
+     * @param aToShow If ETrue, the tooltip should be fully shown at the end of the animation; if EFalse, it should
+     *                be fully hidden
+     * @param aTimeInMilliseconds The length of time the animation should take, in milliseconds
+     * @see CActivePalette2Model::AnimateTooltipRendererComplete
+     */
+    virtual void AnimateTooltip(TBool aToShow, TInt aTimeInMilliseconds) = 0;
+    };
+    
+
+/**
+ * Descriptive-style callbacks for focus-change animation
+ */
+class MActivePalette2FocusDescriptiveObserver
+    {
+public: 
+    /**
+     * Called when a focus-change animation is required
+     * @param aCurrentPos The screen position to start from
+     * @param aTargetPos The destination screen position
+     * @param aTimeInMilliseconds The duration of the animation, in milliseconds
+     * @see CActivePalette2Model::AnimateFocusRendererComplete()
+     */
+    virtual void AnimateFocus(TInt aCurrentPos, TInt aTargetPos, TInt aTimeInMilliseconds) = 0;
+    };
+
+    
+/**
+ * Descriptive-style callbacks for item-scroll animation
+ */
+class MActivePalette2ItemScrollDescriptiveObserver
+    {
+public: 
+    /**
+     * Called when an item-scroll animation is required
+     * @param aDirection +1 to move the items downwards, -1 to move them upwards
+     * @param aTimeInMilliseconds The length of time the animation should take, in milliseconds
+     * @see CActivePalette2Model::AnimateItemScrollRendererComplete
+     */
+    virtual void AnimateItemScroll(TInt aDirection, TInt aTimeInMilliseconds) = 0;
+    };
+    
+
+/**
+ * Descriptive-style callbacks for appearance animation
+ */
+class MActivePalette2AppearanceDescriptiveObserver
+    {
+public: 
+    /**
+     * Called when a palette-appearance animation is required
+     * @param aVisible The target state
+     * @param aTimeInMilliseconds The duration of the animation, in milliseconds
+     * @see CActivePalette2Model::AnimateAppearanceRendererComplete()
+     */
+    virtual void AnimateAppearance(TBool aVisible, TInt aTimeInMilliseconds) = 0;
+
+    /**
+     * Asks the implementing renderer to estimate where the appearance animation is up to
+     * @return The frame number, in relation to CActivePalette2Model::PaletteAppearingTotalFrames()
+     */
+    virtual TInt GuessCurrentAppearanceFrame() = 0;
+    };
+
+#endif //_ACTIVE_PALETTE_2_MODEL_OBSERVER_H