author | hgs |
Tue, 08 Jun 2010 13:16:48 +0300 | |
changeset 31 | 1b6909418757 |
parent 0 | 15bf7259bb7c |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006-2007 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: ?Description |
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* |
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*/ |
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#ifndef __HUIFLOWLAYOUT_H__ |
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#define __HUIFLOWLAYOUT_H__ |
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#include <e32base.h> |
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#include <uiacceltk/HuiLayout.h> |
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/** |
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* Flow layout positions children next to each other either horizontally or |
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* vertically. The sizes of child visuals are not changed by default. |
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* |
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* The layout inner padding is used to determine the gap between children. |
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* |
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* Flow layout takes system wide layout mirroring into consideration by |
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* querying the mirroring state through AknLayoutUtils::LayoutMirrored(). |
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* In western locales the visuals are layed out from left to right whereas |
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* in arabic locale for instance the visuals are layed out from right to left. |
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* Mirroring is considered only when the flow is horizontal. Vertical flow layout |
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* will always lay visuals from top to bottom. |
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*/ |
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NONSHARABLE_CLASS(CHuiFlowLayout) : public CHuiLayout |
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{ |
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public: |
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/** Flow directions. */ |
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enum TFlowDirection |
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{ |
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/** |
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* Flow horizontally. System wide layout mirroring is considered |
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* to determine whether visuals are layed from left to right |
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* or from right to left. |
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* @see AknLayoutUtils::LayoutMirrored() |
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*/ |
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EFlowHorizontal = 0, |
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/** Flow vertically. */ |
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EFlowVertical |
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}; |
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/** Mode flags that specify how the flow is laid out. */ |
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enum TMode |
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{ |
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/** Center the children perpendicular to the flow direction. |
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For example, if the flow direction is horizontal (left->right) |
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this flag will center the children vertically along the flow. */ |
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EModeCenterPerpendicular = 0x1, |
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/** Fit the children perpendicular to the flow direction. |
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For example, if the flow direction is horizontal, the children |
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will be vertically resized to fit the layout's rectangle. */ |
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EModeFitPerpendicular = 0x2, |
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}; |
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/* Constructors and destructor. */ |
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/** |
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* Construct a new flow layout and append it to a control. |
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* |
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* @param aDirection Flow direction. |
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* @param aOwnerControl Control that will own the new layout visual. |
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* @param aParentLayout Parent layout for the new layout visual. |
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* |
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* @return Pointer to the new layout visual. The owner control retains |
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* ownership of the returned visual. Do not delete the returned |
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* visual manually. |
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*/ |
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IMPORT_C static CHuiFlowLayout* AddNewL(CHuiControl& aOwnerControl, |
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TFlowDirection aDirection, |
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CHuiLayout* aParentLayout = 0); |
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/** |
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* Constructor. |
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*/ |
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CHuiFlowLayout(MHuiVisualOwner& aOwner); |
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/** |
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* Second-phase constructor. |
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*/ |
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void ConstructL(); |
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/** |
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* Destructor. |
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*/ |
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IMPORT_C virtual ~CHuiFlowLayout(); |
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/* Methods. */ |
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IMPORT_C void SetSize(const THuiRealSize& aSize, TInt aTransitionTime=0); |
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TBool ChildSize(TInt aOrdinal, TSize& aSize); |
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TBool ChildPos(TInt aOrdinal, TPoint& aPos); |
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TInt ChildRect(TInt aOrdinal, THuiRealRect& aRect); |
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/** |
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* Sets the direction of the flow. |
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* |
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* @param aDirection Flow direction. |
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*/ |
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IMPORT_C void SetFlowDirection(TFlowDirection aDirection); |
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/** |
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* Sets the centering mode of the flow. This sets/clears the |
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* EModeCenterPerpendicular flag. Calling this is equivalent to calling |
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* SetMode() with that flag included or missing from the mode. |
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* |
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* @param aCentering <code>ETrue</code> to set the EModeCenterPerpendicular mode. |
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* <code>EFalse</code> to clear it. |
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* |
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* @note This method could be deprecated in the future, since SetMode() |
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* does the same thing. |
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*/ |
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IMPORT_C void SetCentering(TBool aCentering); |
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/** |
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* Sets the mode of the flow. The mode flags determine how the flow layout |
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* behaves. |
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* |
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* @param aMode Mode flags (OR'd together). |
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* |
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* @see CHuiFlowLayout::TMode |
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*/ |
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IMPORT_C void SetMode(TInt aMode); |
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/** |
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* Returns the mode flags of the flow. |
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* |
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* @see CHuiFlowLayout::TMode |
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* |
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* @return Returns the current mode flags. |
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*/ |
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IMPORT_C TInt Mode() const; |
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private: |
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/* Private methods */ |
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private: |
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/** Direction of the flow: horizontal or vertical. */ |
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TFlowDirection iDirection; |
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/** Mode flags of the flow. */ |
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TInt iMode; |
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}; |
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#endif // __HUIFLOWLAYOUT_H__ |