diff -r 4526337fb576 -r 3eca7e70b1b8 widgetmodel/alfwidgetmodel/src/alfgridlayoutmanagerimpl.cpp --- a/widgetmodel/alfwidgetmodel/src/alfgridlayoutmanagerimpl.cpp Tue Feb 02 00:28:09 2010 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,193 +0,0 @@ -/* -* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). -* All rights reserved. -* This component and the accompanying materials are made available -* under the terms of "Eclipse Public License v1.0" -* which accompanies this distribution, and is available -* at the URL "http://www.eclipse.org/legal/epl-v10.html". -* -* Initial Contributors: -* Nokia Corporation - initial contribution. -* -* Contributors: -* -* Description: layoutmanager implementation class with focus handling in 1D (next/previous) -* -*/ - - -#include -#include -#include -#include "alf/alfwidget.h" -#include -#include -#include -#include - -//stl -#include //for min & max - -#include "alfgridlayoutmanagerimpl.h" - -using namespace Alf; - -namespace Alf - { -// ======== MEMBER FUNCTIONS ======== - -// --------------------------------------------------------------------------- -// layoutmanagerimpl constructor -// --------------------------------------------------------------------------- -// -AlfGridLayoutManagerImpl::AlfGridLayoutManagerImpl( - AlfGridLayoutManager& aGridLayoutManager) : - mGridLayoutManager(aGridLayoutManager) - { - } - -// --------------------------------------------------------------------------- -// creates the layout used by the layoutmanager. -// --------------------------------------------------------------------------- -// -AlfGridLayoutManagerImpl::~AlfGridLayoutManagerImpl() - { - } - -// --------------------------------------------------------------------------- -// from IAlfLayoutPreferences -// Returns the minimum area that this layout manager can occupy by observing -// the minimum sizes of the child UI elements in the layout -// --------------------------------------------------------------------------- -// -bool AlfGridLayoutManagerImpl::getMinimumSize( TAlfXYMetric& /*aMinSize*/ ) const - { - return false; - } - -// --------------------------------------------------------------------------- -// from IAlfLayoutPreferences -// Returns the maximum area that this layout manager can occupy by observing -// the maximum sizes of the child UI elements in the layout -// --------------------------------------------------------------------------- -// -bool AlfGridLayoutManagerImpl::getMaximumSize( TAlfXYMetric& /*aMaxSize*/ ) const - { - return false; - } - -// --------------------------------------------------------------------------- -// Combines and returns the preferred sizes of all child UI elements according -// to the layouting rules. -// --------------------------------------------------------------------------- -// -bool AlfGridLayoutManagerImpl::getPreferredSize(TAlfXYMetric& aPreferredSize) const - { - bool hasPreferredSize = false; - TAlfXYMetric resultSize = TAlfXYMetric(TAlfMetric(0), TAlfMetric(0)); - - const CAlfGridLayout& gridlayout = layout(); - const int childCount = mGridLayoutManager.count(); - const int gridColCount = gridlayout.ColumnCount(); - - //iterate the columns to calculate the preferred width. - const int colCount = std::min(gridColCount, childCount); - for (int i = 0; i < colCount; i++) - { - CAlfWidgetControl* childWidgetControl = mGridLayoutManager.getControl(i); - //getControl may return null, but getLayoutPreferences checks that. - const IAlfLayoutPreferences* layoutPrefs = - mGridLayoutManager.getLayoutPreferences(childWidgetControl); - - if (layoutPrefs) - { - TAlfXYMetric prefSize; - if (layoutPrefs->getPreferredSize(prefSize)) - { - if(prefSize.iX.iUnit == EAlfUnitPixel) - { - resultSize.iX.iMagnitude += prefSize.iX.iMagnitude; - hasPreferredSize = true; - } - } - } - } - - //iterate the rows to calculate the preferred height - if (hasPreferredSize) - { - //count rows, that have at least one visual. - int usedRows = childCount / gridColCount; - if (childCount % gridColCount) - { - //last wor not filled completely, but still valid to get preferred height - //for this row also. - usedRows++; - } - - const int rowCount = std::min(gridlayout.RowCount(), usedRows); - for (int i = 0; i < rowCount; i+= gridColCount) - { - CAlfWidgetControl* childWidgetControl = mGridLayoutManager.getControl(i); - //getControl may return null, but getLayoutPreferences checks that. - const IAlfLayoutPreferences* layoutPrefs = - mGridLayoutManager.getLayoutPreferences(childWidgetControl); - - if (layoutPrefs) - { - TAlfXYMetric prefSize; - if (layoutPrefs->getPreferredSize(prefSize)) - { - if(prefSize.iY.iUnit == EAlfUnitPixel) - { - resultSize.iY.iMagnitude += prefSize.iY.iMagnitude; - hasPreferredSize = true; - } - } - } - } - } - - aPreferredSize = resultSize; - return hasPreferredSize; - } - -// --------------------------------------------------------------------------- -// from IAlfLayoutPreferences -// At the moment doesn't do anything since preferred size is being queried -// from the child UI elements added to this layout manager. -// --------------------------------------------------------------------------- -// -void AlfGridLayoutManagerImpl::setPreferredSize( const TAlfXYMetric& aPreferredSize) - { - TAlfTimedPoint size((float)aPreferredSize.iX.iMagnitude,(float)aPreferredSize.iY.iMagnitude); - layout().SetSize(size); - mGridLayoutManager.owner().updateParentLayout(); - } - -// --------------------------------------------------------------------------- -// From class IAlfInterfaceBase. -// Getter for interfaces provided by the element. -// --------------------------------------------------------------------------- -// -IAlfInterfaceBase* AlfGridLayoutManagerImpl::makeInterface(const IfId& aType) - { - UString param(aType.mImplementationId); - if (param == IAlfLayoutPreferences::type().mImplementationId) - { - return this; - } - - return NULL; - } - -// --------------------------------------------------------------------------- -// returns the gridlayout used by the layoutmanager -// --------------------------------------------------------------------------- -// -CAlfGridLayout& AlfGridLayoutManagerImpl::layout() const - { - return dynamic_cast(mGridLayoutManager.getLayout()); - } - - } // Alf