author | William Roberts <williamr@symbian.org> |
Fri, 12 Nov 2010 11:42:24 +0000 | |
branch | RCL_3 |
changeset 66 | 8ee165fddeb6 |
parent 0 | 15bf7259bb7c |
permissions | -rw-r--r-- |
0
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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: Defines CHuiLayout class. Layouts are visuals that manage |
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* the placement of a set of child visuals. |
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* |
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*/ |
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#ifndef __HUILAYOUT_H__ |
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#define __HUILAYOUT_H__ |
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#include <e32base.h> |
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#include <uiacceltk/HuiVisual.h> |
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#include <uiacceltk/huimetric.h> |
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/* Forward declarations */ |
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class CHuiEnv; |
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class CHuiControl; |
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|
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/** Layout types. */ |
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enum THuiLayoutType |
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{ |
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EHuiLayoutTypeLayout, |
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EHuiLayoutTypeFlow, |
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EHuiLayoutTypeGrid, |
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EHuiLayoutTypeApp, |
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EHuiLayoutTypeAnchor |
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}; |
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|
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/** |
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* Layouts are visuals that manage the placement of a set of child visuals |
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* (or other layouts). |
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* |
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* Layouts are responsible for setting the positions and sizes of their |
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* child visuals. Each layout can define a position, a size, or both |
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* (or neither) for their children. |
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* |
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* Layouts use the children's ordinal numbers to determine where each of |
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* them should be placed. For example, a grid layout could define that the |
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* top row contains children with ordinals 0..3, from left to right. The |
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* second row could then contain the children 4..7. When the order of the |
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* child visuals changes within their parent layout, the parent layout |
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* will recalculate the positions and sizes of the affected children. |
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* |
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* When the size of a layout changes, it will immediately recalculate the |
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* layout of its children. The transition time that is specified in the |
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* size transition of the layout is used when setting the targets of the |
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* children's new positions and sizes. |
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* |
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* Layouts are able to notify their controls when their size is changed. |
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* These notifications are needed because the size of a layout is not known |
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* until the display is refreshed. This means that the <strong>size of a layout |
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* is not available when your controls ConstructL is executed</strong>, unless |
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* it is explicitly set. The notifications are also handy because they allow |
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* the controls to respond to dynamic screen size changes. So unless if the |
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* whole screen is not used for the layout, the notifications are the only way |
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* to do calculations based on the layout size. |
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* |
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* To make the control receive layout update notifications call: |
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* |
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* <code> |
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* layout->SetFlags(EHuiVisualFlagLayoutUpdateNotification); |
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* </code> |
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* |
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* .. and override VisualLayoutUpdated() method in your control. |
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* |
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* @see SetSize() |
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* @see SetFlags() |
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* @see CHuiControl::VisualLayoutUpdated() |
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* |
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* Each layout defines its own local coordinate system used for interpreting |
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* the positions and sizes of its child visuals. The base unit of the |
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* coordinate system is defined with the SetBaseUnit() method, which sets a |
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* THuiXYMetric to use as the basis for all coordinate calculations. The default |
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* metric is [1px, 1px] which corresponds to pixels on the display. |
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* |
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* The local coordinate system of a layout can be mirrored horizontally and/or |
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* vertically by using a negative magnitude in the relevant THuiMetric of the |
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* base unit. Note that this will only affect the local coordinate system |
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* of the layout: the contents of the child visuals or child layouts will not |
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* be mirrored. Visual mirroring should be done with a CHuiTransformation, |
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* and child layouts can be mirrored by further application of the negative |
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* base unit metrics. In order to enable a layout to automatically mirror the |
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* horizontal component of the base unit based on locale mirroring, set the visual flag |
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* @c EHuiVisualFlagAutomaticLocaleMirroringEnabled, note that it is necessary |
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* to set this flag for each layout for which this feature is required. |
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* |
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* To create to a fully scalable UI, the appropriate base unit metrics and |
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* layout visuals must be used. For example, the EHuiUnitS60 metric unit is |
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* dependent on the platform-specified measurement units for layout. |
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* CHuiGridLayout and CHuiAnchorLayout provide support for pixel-independent |
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* placement of their children. |
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* |
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* @see CHuiAnchorLayout |
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* @see CHuiGridLayout |
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* |
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* Applications that need more complex layouts should derive their own |
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* CHuiLayout based classes that implement the necessary layout calculations. |
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* In many cases, however, a combination of some of the built-in layout classes |
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* such as anchor and grid layouts will be sufficient. |
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*/ |
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class CHuiLayout : public CHuiVisual |
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{ |
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public: |
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|
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enum TExpansionFlags |
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{ |
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/** Not expanding in any direction. */ |
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EExpandNone = 0, |
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|
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/** Expands horizontally. */ |
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EExpandHorizontally = 1, |
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|
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/** Expands vertically. */ |
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EExpandVertically = 2 |
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}; |
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131 |
|
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132 |
|
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/** @beginAPI */ |
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134 |
|
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/* Constructors and destructor. */ |
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136 |
|
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/** |
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* Construct a new basic layout and give its ownership to a control. |
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* Note that CHuiLayout has no real layout functionality: its children |
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* must be laid out manually. |
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* |
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* @param aOwnerControl Owner control. |
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* @param aParentLayout Parent layout for the new layout. |
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*/ |
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IMPORT_C static CHuiLayout* AddNewL(CHuiControl& aOwnerControl, |
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CHuiLayout* aParentLayout = 0); |
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|
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/** |
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* Constructor. |
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*/ |
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IMPORT_C CHuiLayout(MHuiVisualOwner& aOwner); |
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152 |
|
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/** |
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* Destructor. |
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*/ |
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IMPORT_C ~CHuiLayout(); |
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157 |
|
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/** |
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* Second-phase constructor from CHuiVisual, must be called in deriving class |
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*/ |
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IMPORT_C void ConstructL(); |
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|
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|
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|
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/* Methods. */ |
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166 |
|
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/** |
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* From CHuiVisual. Removes this layout from its owner and and destroys the layout. |
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* Also removes the entire hierarchy of child visuals and destroys all |
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* of them. |
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*/ |
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IMPORT_C void RemoveAndDestroyAllD(); |
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|
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/** |
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* From CHuiVisual. Finds a visual whose tag descriptor contains a specific tag. |
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* Checks self first, then looks through the child visuals. |
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* |
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* CHuiLayout::FindTag() extends upon the basic implementation |
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* in CHuiVisual::FindTag() by adding recursive visual hierarchy |
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* searching. |
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* |
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* @param aTag Tag to look for. If this tag is found as a part of a |
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* visual's colon-separated tag descriptor, it is treated |
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* as a match and the visual is returned. |
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* The tag to look for cannot contain separator characters (:). |
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* |
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* @return Visual whose tag descriptor matches the tag. <code>NULL</code>, |
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* if no such visual could be found. If a visual is returned, |
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* it will either be this visual or one of its descendants. |
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* |
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* @see CHuiVisual::Tag() |
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* @see CHuiVisual::SetTagL() |
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* @see CHuiVisual::IsTagged() |
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* @see CHuiVisual::FindTag() |
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*/ |
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IMPORT_C CHuiVisual* FindTag(const TDesC8& aTag); |
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|
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/** |
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* Append a new visual to the layout. If the visual is already a member of |
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* some other layout, it will be removed from the old layout first. |
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* |
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* @param aVisual Visual to append. |
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* @param aLayoutTransitionTime How long the transition should take visually, in milliseconds. |
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* |
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* @todo Add a method for appending multiple visuals in one set, so that |
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* they only cause a single layout update. |
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*/ |
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IMPORT_C void AppendL(CHuiVisual* aVisual, TInt aLayoutTransitionTime = 0); |
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|
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/** |
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* Insert a new visual to the layout, at specified position (position 0 is the first, |
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* Count() -1 is the last). If the visual is already a member of |
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* some other layout, it will be removed from the old layout first. |
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* |
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* @param aVisual Visual to append. |
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* @param TInt Position to insert. This is the new ordinal number of the visual. |
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* @param aLayoutTransitionTime How long the transition should take visually, in milliseconds. |
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*/ |
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IMPORT_C void InsertL(CHuiVisual* aVisual, TInt aPosition, TInt aLayoutTransitionTime = 0); |
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/** |
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* Remove a visual from the layout. |
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* |
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* @param aVisual Visual to remove. |
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* @param aLayoutTransitionTime How long the transition should take visually, in milliseconds. |
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* @todo Add a method for removing multiple visuals in one set, so that |
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* they only cause a single layout update. |
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*/ |
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IMPORT_C void Remove(CHuiVisual* aVisual, TInt aLayoutTransitionTime = 0); |
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/** |
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* From CHuiVisual. Returns the number of child visuals in the layout. |
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*/ |
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IMPORT_C TInt Count() const; |
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/** |
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* From CHuiVisual. Returns a child visual. |
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* |
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* @param aIndex Index of the child visual. |
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* |
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* @return Reference to a child visual. |
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*/ |
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IMPORT_C CHuiVisual& Visual(TInt aIndex) const; |
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/** |
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* Finds a visual's index. |
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* |
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* @param aVisual Visual to look for. |
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* |
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* @return Index of the visual, or <code>KErrNotFound</code>. |
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*/ |
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IMPORT_C TInt FindVisual(const CHuiVisual* aVisual) const; |
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/** |
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* From CHuiVisual. Sets the position of the layout. |
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* @param aPos Target position, in the local coordinate system as |
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* defined by the parent layout (or the display, |
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* if there is no parent). |
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* @param aTransitionTime Transition time in milliseconds. |
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*/ |
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IMPORT_C void SetPos(const THuiRealPoint& aPos, TInt aTransitionTime = 0); |
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/** |
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* From CHuiVisual. Change the size of the layout. Children's positions and sizes are |
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* updated accordingly. Each layout class is responsible for determining |
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* how to update children's layout. |
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* |
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* @param aSize Size to set the layout to. |
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* @param aLayoutTransitionTime How long the transition should take visually, in milliseconds. |
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*/ |
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IMPORT_C void SetSize(const THuiRealSize& aSize, TInt aTransitionTime = 0); |
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/** |
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* From CHuiVisual. Update the layout of all children. Subclasses can call this to |
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* recalculate the layout of all children. |
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* |
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* @param aTransitionTime Time for layout transition. |
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*/ |
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IMPORT_C void UpdateChildrenLayout(TInt aTransitionTime = 0); |
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/** |
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* New virtual method. Update the layout of one child visual. |
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* |
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* @param aIndex Child visual index. |
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* @param aTransitionTime Time for layout transition. |
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*/ |
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IMPORT_C virtual void UpdateChildLayout(TInt aIndex, TInt aTransitionTime = 0); |
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/** |
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* Sets the inner padding of the layout. This is typically the amount |
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* of empty space between child visuals in the layout. |
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* |
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* @param aInnerPadding Inner padding (e.g., column, row separation). |
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*/ |
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IMPORT_C void SetInnerPadding(const TPoint& aInnerPadding); |
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/** |
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* Sets the inner padding of the layout. This is typically the amount |
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* of empty space between child visuals in the layout. |
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* |
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* @note as paddings are relative to the layout visual, if relative units are required, |
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* it is advisable to use EHuiUnitRelativeToMySize so that the paddings are relative |
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* to the size of this layout visual |
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* |
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* @param aInnerPadding Inner padding, using metrics. |
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*/ |
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IMPORT_C void SetInnerPadding(const THuiXYMetric& aInnerPadding); |
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/** |
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* Returns the current inner padding. |
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*/ |
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IMPORT_C const THuiXYMetric& InnerPadding() const; |
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|
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/** |
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* Returns the inner horizontal padding. |
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* @deprecated This is useless, use InnerPaddingInBaseUnits() instead. |
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*/ |
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IMPORT_C TInt HorizontalInnerPadding() const; |
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|
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/** |
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* Returns the inner vertical padding. |
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* @deprecated This is useless, use InnerPaddingInBaseUnits() instead. |
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*/ |
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IMPORT_C TInt VerticalInnerPadding() const; |
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327 |
|
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/** |
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* Returns the inner padding converted to the base units of this layout. |
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* These can be summed with the positions and sizes of the layout's children. |
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*/ |
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IMPORT_C THuiRealPoint InnerPaddingInBaseUnits() const __SOFTFP; |
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333 |
|
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/** |
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* Enables or disables scrolling in the layout. An offset |
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* for the origin of the layout can be defined using |
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* ScrollOffset() - method and manipulating the THuiTimedPoint |
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* returned by that method. |
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* |
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* Scroll offset, unlike other layout parameters, is not directly applied |
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* to layout children when UpdateChildrenLayout() is called. Instead, the |
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* scroll offset is taken into consideration when individual child visual |
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* display rectangles are calculated. This way the scroll offset is directly |
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* applied to dirty rectangle calculations as well as to visual content |
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* rectangle calculations when visuals are drawn. |
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* |
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* @param aScrolling <code>ETrue</code> to enable scrolling, |
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* <code>EFalse</code> to disable. |
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349 |
*/ |
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IMPORT_C void EnableScrollingL(TBool aScrolling = ETrue); |
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351 |
|
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352 |
/** |
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* Indicates whether scrolling is enabled in this layout. |
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* @see EnableScrolling() |
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* |
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* @return ETrue if scrolling is enabled, EFalse otherwise. |
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357 |
*/ |
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IMPORT_C TBool Scrolling() const; |
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359 |
|
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360 |
/** |
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361 |
* Returns the scroll offset of the layout. The scroll offset is in |
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* layout's base units. The scroll offset has to be enabled before this |
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* method is called. |
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* @see EnableScrollingL() |
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365 |
* |
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* @return Reference to timed point that defines the scroll offset. |
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* |
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* @panic THuiPanic::ELayoutNotScrolling Scrolling is not enabled. |
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*/ |
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IMPORT_C THuiTimedPoint& ScrollOffset(); |
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IMPORT_C const THuiTimedPoint& ScrollOffset() const; |
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372 |
|
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373 |
/** |
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* Specifies the scroll offset of this layout. The scroll offset |
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* is defined in layout's base units. The scroll offset has to be |
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* enabled before this method is called. |
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* @see BaseUnit() |
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* @see EnableScrollingL() |
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379 |
* |
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* @param aOffset Offset in layout's base units. |
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* @param aTransitionTime Time when the offset is to be reached in milliseconds. |
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382 |
*/ |
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IMPORT_C void SetScrollOffsetInBaseUnits(const THuiRealPoint& aOffset, TInt aTransitionTime = 0); |
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384 |
|
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385 |
/** |
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386 |
* Determines the virtual size of the layout. The virtual size may be |
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* larger than the actual size. The virtual size is updated automatically |
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* when the layout's children are positioned. |
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389 |
* |
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* @return Virtual size. |
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391 |
* |
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* @panic THuiPanic::ELayoutNotScrolling Scrolling is not enabled. |
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393 |
*/ |
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IMPORT_C TSize VirtualSize() const; |
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395 |
|
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396 |
/** |
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397 |
* Layout is calculated according the ordinals. The effective ordinal |
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* may not be the same as the real child ordinal, because some visuals |
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* are laid out manually. |
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* |
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* @return Effective ordinal for the child visual. |
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402 |
* |
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403 |
* @panic THuiPanic::ELayoutChildVisualNotFound aVisual is not a child |
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* of this layout. |
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405 |
*/ |
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406 |
IMPORT_C TInt EffectiveLayoutOrdinal(const CHuiVisual& aVisual) const; |
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407 |
|
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408 |
/** |
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409 |
* Moves the given child visual to specific position in the layout's list |
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* of child visuals. Affects the drawing order (last child is drawn last), |
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* and possibly the final laid out position and size of the visual. |
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412 |
* This is due to that many layout implementations calculate the |
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* positioning of their children based on child's order number |
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* in the list. |
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415 |
* |
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* Causes layout recalculation. |
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417 |
* |
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* @param aVisual Child visual to move. |
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|
419 |
* @param aPosition New position (and ordinal number) |
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|
420 |
* in the child list (0 = first, Count()-1 = last). |
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Revision: 201003
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|
421 |
* @param aLayoutTransitionTime How long the transition should take visually, in milliseconds. |
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|
422 |
* @see MoveVisualToBack() |
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|
423 |
* @see MoveVisualToFront() |
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424 |
*/ |
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|
425 |
IMPORT_C void Reorder(CHuiVisual& aVisual, TInt aPosition, TInt aLayoutTransitionTime = 0); |
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|
426 |
|
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|
427 |
/** |
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parents:
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|
428 |
* Moves a child visual to the front of the other children. In other words |
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Revision: 201003
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|
429 |
* the visual is drawn last (on top of the other child visuals). In practise |
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|
430 |
* this affects the order of the visuals whithin this layout so that the |
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Revision: 201003
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parents:
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|
431 |
* visual is moved at the end of the list. |
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|
432 |
* |
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|
433 |
* Causes layout recalculation. |
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Revision: 201003
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|
434 |
* |
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Revision: 201003
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435 |
* @param aVisual Child visual to move. |
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Revision: 201003
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436 |
* @see MoveVisualToBack() |
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|
437 |
* @see Reorder() |
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438 |
* @param aLayoutTransitionTime How long the transition should take visually, in milliseconds. |
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Revision: 201003
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|
439 |
* |
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440 |
* @see MoveVisualToFront() - Use this instead! |
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441 |
*/ |
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442 |
IMPORT_C void MoveVisualToFront(CHuiVisual& aVisual, TInt aLayoutTransitionTime = 0); |
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|
443 |
|
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|
444 |
|
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445 |
/** |
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446 |
* Moves a child visual behind the other children (in drawing order). |
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447 |
* In other words the visual is drawn first (the other child visuals will |
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Revision: 201003
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448 |
* be drawn on top of this visual). |
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449 |
* |
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450 |
* In practise this affects the order |
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Revision: 201003
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451 |
* of the visuals whithin this layout so that the visual is moved at |
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Revision: 201003
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452 |
* the beginning of the list (ordinal 0). |
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|
453 |
* |
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454 |
* @param aVisual Child visual to move. |
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455 |
* @param aLayoutTransitionTime How long the transition should take visually, in milliseconds. |
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456 |
* @see MoveVisualToFront() |
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457 |
* @see Reorder() |
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458 |
*/ |
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|
459 |
IMPORT_C void MoveVisualToBack(CHuiVisual& aVisual, TInt aLayoutTransitionTime = 0); |
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|
460 |
|
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|
461 |
/** |
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462 |
* Notifies children of the change in the environment's skin. |
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|
463 |
*/ |
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Revision: 201003
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464 |
IMPORT_C void NotifySkinChangedL(); |
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|
465 |
|
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466 |
/** |
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|
467 |
* Sets the transition time for the recalculation of this layout's |
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Revision: 201003
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|
468 |
* contents. This is used when a visual is added or removed or when |
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Revision: 201003
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469 |
* the order of the children is changed. |
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|
470 |
* |
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|
471 |
* You need to set the EHuiVisualFlagManualTransitionTime flag of this |
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Revision: 201003
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|
472 |
* visual before this setting has any effect. This flag overrides the |
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Revision: 201003
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|
473 |
* layout transition time hierarchy and uses a local value instead. |
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Revision: 201003
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|
474 |
* |
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Revision: 201003
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|
475 |
* @param aTransitionTime Transition time in milliseconds. |
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|
476 |
* |
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Revision: 201003
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|
477 |
* @see CHuiLayout::SetTransitionTime() |
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Revision: 201003
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478 |
* @see CHuiVisual::SetFlag() |
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479 |
* @see EHuiVisualFlagManualTransitionTime |
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480 |
*/ |
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Revision: 201003
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|
481 |
IMPORT_C void SetTransitionTime(TInt aTransitionTime); |
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|
482 |
|
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Revision: 201003
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|
483 |
/** |
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Revision: 201003
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|
484 |
* Returns the transition time of this layout. |
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Revision: 201003
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|
485 |
* |
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Revision: 201003
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|
486 |
* @return Transition time in milliseconds, or |
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Revision: 201003
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|
487 |
* KHuiLayoutDefaultTransitionTime. |
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Revision: 201003
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|
488 |
* |
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Revision: 201003
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|
489 |
* @see CHuiLayout::SetTransitionTime() |
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Revision: 201003
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490 |
* @see CHuiVisual::SetFlag() |
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Revision: 201003
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|
491 |
* @see EHuiVisualFlagManualTransitionTime |
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|
492 |
*/ |
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Revision: 201003
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|
493 |
IMPORT_C TInt TransitionTime() const; |
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|
494 |
|
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Revision: 201003
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|
495 |
/** |
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Revision: 201003
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|
496 |
* Determines the layout ordinal for a child visual. The child's placement |
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Revision: 201003
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|
497 |
* depends on the ordinal number. |
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Revision: 201003
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|
498 |
* |
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Revision: 201003
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499 |
* @param aIndex Index of the child visual. |
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Revision: 201003
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500 |
*/ |
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Revision: 201003
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501 |
IMPORT_C virtual TInt ChildOrdinal(TInt aIndex); |
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Revision: 201003
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|
502 |
|
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Revision: 201003
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|
503 |
/** |
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Revision: 201003
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|
504 |
* From CHuiVisual. Prepares all children of this layout for |
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Revision: 201003
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|
505 |
* drawing. The preparation is done in drawing |
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Revision: 201003
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|
506 |
* order. |
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Revision: 201003
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|
507 |
* |
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Revision: 201003
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|
508 |
* Actually this default implementation is not |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
509 |
* leaving, since it traps the prepare errors |
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Revision: 201003
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|
510 |
* inside and handles the errors by calling |
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Revision: 201003
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|
511 |
* the visual owners "prepare draw failed" |
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Revision: 201003
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|
512 |
* -callback. |
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Revision: 201003
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|
513 |
* |
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Revision: 201003
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514 |
* @return ETrue if the prepare succeeded, or EFail if |
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Revision: 201003
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|
515 |
* the prepare failed. Failing to prepare a draw |
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Revision: 201003
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|
516 |
* terminates the screen refresh and drawing |
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Revision: 201003
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|
517 |
* for the current frame. |
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Revision: 201003
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|
518 |
* |
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Revision: 201003
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|
519 |
* @see MHuiVisualOwner::VisualPrepareDrawFailed() |
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Revision: 201003
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520 |
*/ |
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Revision: 201003
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|
521 |
IMPORT_C TBool PrepareDrawL(); |
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Revision: 201003
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|
522 |
/** |
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Revision: 201003
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|
523 |
* From CHuiVisual. Draws (renders) this layout. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
524 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
525 |
* The default implementataion applies transformations |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
526 |
* (affects the positions of the layout), draws brushes |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
527 |
* and of course children. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
528 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
529 |
* Layout clipping is not affected by transformation. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
530 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
531 |
* @todo Clipping doesn't work if there is a transformation? |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
532 |
* @todo No need to draw children that won't be visible. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
533 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
534 |
IMPORT_C void Draw(CHuiGc& aGc) const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
535 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
536 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
537 |
* From CHuiVisual. Called to inform the display that a dirty region has to be defined. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
538 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
539 |
* Forward the notification request to all the child visuals. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
540 |
* Scrolling causes changed reports from the layout itself. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
541 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
542 |
IMPORT_C void ReportChanged(); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
543 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
544 |
/** From CHuiVisual */ |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
545 |
IMPORT_C void ClearChanged(); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
546 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
547 |
/** From CHuiVisual */ |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
548 |
IMPORT_C TBool Changed() const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
549 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
550 |
/** From CHuiVisual */ |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
551 |
IMPORT_C void DumpTree() const; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
552 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
553 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
554 |
* Defines the base unit used for positioning and sizing children |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
555 |
* within this layout. For example, the actual X position of a child is |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
556 |
* determined by <tt>aBaseUnit.iX * childX</tt>. The effect of the |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
557 |
* base unit is limited to the children of this layout -- the |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
558 |
* grandchildren use the base units of their parents, not this base unit. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
559 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
560 |
* @note It is recommended to use EHuiUnitNormalized if proportional base units are |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
561 |
* required. For example, EHuiUnitRelativeToMySize would not make sense as a base |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
562 |
* unit. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
563 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
564 |
* @param aMetric Metric that will be used for both X and Y axes. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
565 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
566 |
IMPORT_C void SetBaseUnit(const THuiMetric& aBaseUnit); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
567 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
568 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
569 |
* Defines the base unit used for positioning and sizing children |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
570 |
* within this layout. For example, the actual X position of a child is |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
571 |
* determined by <tt>aBaseUnit.iX * childX</tt>. The effect of the |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
572 |
* base unit is limited to the children of this layout -- the |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
573 |
* grandchildren use the base units of their parents, not this base unit. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
574 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
575 |
* @param aMetric Metric to use as the base unit. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
576 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
577 |
IMPORT_C void SetBaseUnit(const THuiXYMetric& aBaseUnit); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
578 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
579 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
580 |
* Returns the layout's base measurement unit. The positions and sizes |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
581 |
* of the children of this layout are interpreted as multiples of this |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
582 |
* base unit. For example, the actual X position of a child is |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
583 |
* determined by <tt>aBaseUnit.iX * childX</tt>. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
584 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
585 |
* The effect of the base unit is limited to the children of this layout |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
586 |
* -- the grandchildren use the base units of their parents, not this |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
587 |
* base unit. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
588 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
589 |
* @note that if the visual flag @c EHuiVisualFlagAutomaticLocaleMirroringEnabled |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
590 |
* is set, the value returned by this method will change based on the current platform |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
591 |
* locale mirroring in the X-axis. So for example if the current layout is mirrored, then |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
592 |
* the value returned by this method will have the X magnitude set to the negative |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
593 |
* of the value that was set using @c SetBaseUnit. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
594 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
595 |
* @return Metric used as the base unit for child coordinates and sizes. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
596 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
597 |
IMPORT_C virtual THuiXYMetric BaseUnit() const; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
598 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
599 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
600 |
/** @endAPI */ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
601 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
602 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
603 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
604 |
* Calculate the bounding rectangle for the layout. The rectangle is |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
605 |
* calculated in the base units of the layout, i.e. it is calculated |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
606 |
* using unconverted the child coordinates and sizes. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
607 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
608 |
* @return Bounding rectangle: the smallest rectangle inside which |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
609 |
* all the children of this layout can fit. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
610 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
611 |
THuiRealRect BoundingRect() const; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
612 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
613 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
614 |
* Calculate the size of the inner area (bounds without outer padding). |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
615 |
* The size is calculated in the base units of this layout, so that |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
616 |
* children can be positioned within the layout based on this size. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
617 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
618 |
* @return Width and height of the inner area, in base units of |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
619 |
* this layout. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
620 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
621 |
IMPORT_C THuiRealSize InnerSize() const __SOFTFP; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
622 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
623 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
624 |
* Calculates the top left corner of the inner area (bounds without |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
625 |
* outer padding). The point is calculated in the base units of this |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
626 |
* layout, so that the children can be positioned within the layout |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
627 |
* based on this point. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
628 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
629 |
* @return Top left corner point of the inner area, in base units |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
630 |
* of this layout. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
631 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
632 |
IMPORT_C THuiRealPoint InnerTopLeft() const __SOFTFP; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
633 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
634 |
/** @beginAPI */ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
635 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
636 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
637 |
* New virtual method. Determines the size of a child visual according to the layout. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
638 |
* The child size is determined using the base units of the layout. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
639 |
* Derived layout classes should refer to InnerSize() and InnerTopLeft() |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
640 |
* to determine the area suitable for placing children into. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
641 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
642 |
* @param aOrdinal Layout ordinal of the child visual. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
643 |
* @param aSize New target size for the child. This goes to |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
644 |
* CHuiVisual::SetSize() with no conversions. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
645 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
646 |
* @return <code>ETrue</code>, if a new size was determined. Otherwise, |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
647 |
* <code>EFalse</code> is returned and no size changes are |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
648 |
* needed. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
649 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
650 |
IMPORT_C virtual TBool ChildSize(TInt aOrdinal, TSize& aSize); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
651 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
652 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
653 |
* New virtual method. Determines the position of a child visual according to the layout. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
654 |
* The child position is determined using the base units of the layout. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
655 |
* Derived layout classes should refer to InnerSize() and InnerTopLeft() |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
656 |
* to determine the area suitable for placing children into. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
657 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
658 |
* @param aOrdinal Layout ordinal of the child visual. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
659 |
* @param aPos New position for the child. This goes to |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
660 |
* CHuiVisual::SetPos() with no conversions. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
661 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
662 |
* @return <code>ETrue</code>, if a new position was determined. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
663 |
* Otherwise, <code>EFalse</code> is returned and no position |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
664 |
* changes are needed. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
665 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
666 |
IMPORT_C virtual TBool ChildPos(TInt aOrdinal, TPoint& aPos); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
667 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
668 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
669 |
enum EHuiLayoutChildRect |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
670 |
{ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
671 |
THuiLayoutChildRectNotImplemented = -1, |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
672 |
THuiLayoutChildRectUpdateNotNeeded = 0, |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
673 |
THuiLayoutChildRectPosUpdateNeeded = 1, |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
674 |
THuiLayoutChildRectSizeUpdateNeeded = 2, |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
675 |
THuiLayoutChildRectLayoutUpdateNeeded = THuiLayoutChildRectPosUpdateNeeded | THuiLayoutChildRectSizeUpdateNeeded |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
676 |
}; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
677 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
678 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
679 |
* New virtual method. Determines the position and size of a child visual according to the layout. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
680 |
* The child position is determined using the base units of the layout. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
681 |
* Derived layout classes should refer to InnerSize() and InnerTopLeft() |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
682 |
* to determine the area suitable for placing children into. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
683 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
684 |
* @param aOrdinal Layout ordinal of the child visual. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
685 |
* @param aRect New position for the child. This is used to set |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
686 |
* the child size and position with no conversions. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
687 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
688 |
* @return one of the values belonging to EHuiLayoutChildRect as follows: |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
689 |
* THuiLayoutChildRectNotImplemented - method not implemented, ChildPos and ChildSize to be called as previously |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
690 |
* THuiLayoutChildRectUpdateNotNeeded - method is implemented, but aRect was not calculated; child pos/size are not modified |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
691 |
* THuiLayoutChildRectPosUpdateNeeded - method is implemented, but only iTl was calculated (pos) |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
692 |
* THuiLayoutChildRectSizeUpdateNeeded - method is implemented, but only size was calculated (iTl will be returned as 0) |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
693 |
* THuiLayoutChildRectLayoutUpdateNeeded - method is implemented and aRect was calculated |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
694 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
695 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
696 |
IMPORT_C virtual TInt ChildRect(TInt aOrdinal, THuiRealRect& aRect); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
697 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
698 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
699 |
/** @endAPI */ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
700 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
701 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
702 |
public: // From CHuiVisual. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
703 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
704 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
705 |
IMPORT_C TReal32 BrushOpacity() const __SOFTFP; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
706 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
707 |
IMPORT_C THuiRealRect BrushRect() const __SOFTFP; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
708 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
709 |
IMPORT_C CHuiSkin& BrushSkin() const; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
710 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
711 |
protected: |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
712 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
713 |
* From CHuiVisual. Overridden by subclasses to draw the content of the visual. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
714 |
* By default DrawSelf does not draw anything. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
715 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
716 |
IMPORT_C void DrawSelf(CHuiGc& aGc, const TRect& aDisplayRect) const; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
717 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
718 |
/** |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
719 |
* Calculate the metric reference for this layout, relative to this layout's |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
720 |
* base units. |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
721 |
* |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
722 |
* @param aLayout this parameter is no longer used, an alternative method is provided that does not take this parameter |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
723 |
* @param aMetric the metric for which we need a reference value |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
724 |
*/ |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
725 |
IMPORT_C THuiRealPoint MetricReferenceForLayoutInPixels(const CHuiLayout* aLayout, const THuiXYMetric& aMetric) const __SOFTFP; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
726 |
IMPORT_C THuiRealPoint MetricReferenceForLayoutInPixels(const THuiXYMetric& aMetric) const __SOFTFP; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
727 |
|
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
728 |
IMPORT_C void ExpandRectWithContent(TRect& aRect) const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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/** ! From HuiVisual */ |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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731 |
IMPORT_C void VisualExtension(const TUid& aExtensionUid, TAny** aExtensionParams); |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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Revision: 201003
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733 |
TBool EffectIsAppliedToChildren() const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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public: // RnD utilities from CHuiVisual |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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IMPORT_C void GetInstanceName(TDes& aName) const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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IMPORT_C void GetClassName(TDes& aName) const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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IMPORT_C TType Type() const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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739 |
IMPORT_C TInt SessionId() const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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IMPORT_C void SetSessionId(TInt aSessionId); |
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Revision: 201003
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private: |
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Revision: 201003
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|
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Revision: 201003
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TBool HasActiveChilderen() const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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void DrawStoredBitmap(CHuiGc &aGc) const; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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protected: |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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struct THuiLayoutPrivateData; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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THuiLayoutPrivateData* iHuiLayoutPrivateData; // owned |
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}; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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#endif // __HUILAYOUT_H__ |