author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 13 Oct 2010 14:23:59 +0300 | |
branch | RCL_3 |
changeset 83 | 26b2b12093af |
parent 66 | 2455ef1f5bbc |
permissions | -rw-r--r-- |
66 | 1 |
/* |
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* Copyright (c) 2003-2007 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: Implements the Form LCDUI component. |
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* |
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*/ |
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// For LyaoutMirrored() method. |
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#include <AknUtils.h> |
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#include "CMIDFormRow.h" |
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// CMIDForm API for iForm |
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#include "CMIDForm.h" |
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// API for items on rows |
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#include "CMIDControlItem.h" |
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#include "CMIDItemLabel.h" |
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CMIDFormRow* CMIDFormRow::NewL(CMIDForm& aForm) |
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{ |
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CMIDFormRow* self = new(ELeave) CMIDFormRow(aForm); |
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CleanupStack::PushL(self); |
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self->ActivateL(); |
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CleanupStack::Pop(self); |
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return self; |
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} |
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CMIDFormRow::~CMIDFormRow() |
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{ |
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TInt i; |
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for (i=0; i < iItems.Count(); i++) |
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{ |
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if (CMIDForm::IsLabelContainerItem(*(iItems[i]))) |
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{ |
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delete iItems[i]; |
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} |
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else if (CMIDForm::IsSpacerUsedForFormatting(*(iItems[i]))) |
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{ |
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delete iItems[i]; |
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} |
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} |
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iItems.Reset(); |
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iItems.Close(); |
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} |
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TInt CMIDFormRow::CountComponentControls() const |
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{ |
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return iItems.Count(); |
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} |
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CCoeControl* CMIDFormRow::ComponentControl(TInt aIndex) const |
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{ |
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return iItems[aIndex]; |
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} |
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void CMIDFormRow::SizeChanged() |
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{ |
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TInt xOff = 0; |
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TSize size(0,0); |
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TInt i; |
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for (i=0; i < iItems.Count(); i++) |
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{ |
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CMIDControlItem& ci = *(iItems[i]); |
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size.iWidth += ci.Size().iWidth; |
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if (ci.Size().iHeight > size.iHeight) |
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{ |
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size.iHeight = ci.Size().iHeight; |
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} |
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} |
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if (iAlignment == MMIDItem::ERight) |
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{ |
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xOff = iForm.Width() - size.iWidth; |
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// If it is mirrored layout, we need translate a row. |
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if (AknLayoutUtils::LayoutMirrored()) |
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{ |
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xOff -= iForm.GetMidpNaviPos(); |
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} |
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} |
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if (iAlignment == MMIDItem::ECenter) |
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{ |
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xOff = (iForm.Width() - size.iWidth) / 2; |
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} |
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for (i=0; i < iItems.Count(); i++) |
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{ |
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CMIDControlItem& ci = *(iItems[i]); |
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TInt yOff = 0; |
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if (CMIDForm::LayoutBottom(ci)) |
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{ |
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yOff = size.iHeight - ci.Size().iHeight; |
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} |
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if (CMIDForm::LayoutVerticalCenter(ci)) |
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{ |
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yOff = (size.iHeight - ci.Size().iHeight) / 2; |
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} |
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// Form left margin is added in the beginning of each row |
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TPoint newPosition = Position() + TPoint(xOff, yOff); |
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TSize itemSize = ci.Size(); |
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TRect itemRect = TRect(newPosition, itemSize); |
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ci.SetRect(itemRect); |
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xOff += ci.Size().iWidth; |
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} |
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} |
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TSize CMIDFormRow::MinimumSize() |
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{ |
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if (iItems.Count() == 0) |
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{ |
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return iEmptyRowSize; |
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} |
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TInt width = 0; |
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TInt height = 0; |
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for (TInt i=0; i < iItems.Count(); i++) |
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{ |
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CMIDControlItem& ci = *(iItems[i]); |
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width += CMIDForm::LayoutShrink(ci) ? ci.MinimumSize().iWidth : ci.PreferredSize().iWidth; |
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if (CMIDForm::LayoutVerticalShrink(ci)) |
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{ |
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if (height < ci.MinimumSize().iHeight) |
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{ |
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height = ci.MinimumSize().iHeight; |
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} |
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} |
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else |
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{ |
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if (height < ci.PreferredSize().iHeight) |
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{ |
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height = ci.PreferredSize().iHeight; |
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} |
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} |
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} |
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return TSize(width, height); |
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} |
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void CMIDFormRow::AppendL(CMIDControlItem* aItem) |
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{ |
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if (iForm.InitialAlignment() == MMIDItem::ELeft) |
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{ |
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User::LeaveIfError(iItems.Append(aItem)); |
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} |
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else |
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{ |
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User::LeaveIfError(iItems.Insert(aItem, 0)); |
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} |
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iCurrentWidth += aItem->Size().iWidth; |
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} |
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void CMIDFormRow::SetAlignment(MMIDItem::TLayout aAlignment) |
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{ |
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ASSERT((aAlignment == MMIDItem::ELeft) || (aAlignment == MMIDItem::ERight) || (aAlignment == MMIDItem::ECenter)); |
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iAlignment = aAlignment; |
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} |
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/** */ |
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void CMIDFormRow::SizeItemsL() |
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{ |
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TSize minSize = MinimumSize(); |
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// size the widths first |
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TInt availableWidth = iForm.Width() - minSize.iWidth; |
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// equation is also allowed - resizing when extra space is same as allowed |
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if (availableWidth >= 0) |
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{ |
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TInt totalExtraWidth = 0; |
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for (TInt j=0; j < iItems.Count(); j++) |
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{ |
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CMIDControlItem& ci = *(iItems[j]); |
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if (CMIDForm::LayoutShrink(ci)) |
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{ |
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totalExtraWidth += ci.PreferredSize().iWidth - ci.MinimumSize().iWidth; |
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} |
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} |
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if (availableWidth > totalExtraWidth) |
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{ |
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// just give all items what they want |
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for (TInt j=0; j < iItems.Count(); j++) |
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{ |
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CMIDControlItem& ci = *(iItems[j]); |
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ci.SetSizeQuiet(ci.PreferredSize()); |
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} |
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availableWidth -= totalExtraWidth; |
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} |
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else |
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{ |
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// distribute the size |
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TReal scaleFactor; |
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if (availableWidth == totalExtraWidth) |
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{ |
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scaleFactor = 1; |
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} |
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else |
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{ |
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if (totalExtraWidth != 0) |
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{ |
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scaleFactor = TReal(availableWidth) / TReal(totalExtraWidth); |
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} |
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else |
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{ |
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scaleFactor = 1; |
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} |
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} |
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for (TInt j=0; j < iItems.Count(); j++) |
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{ |
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CMIDControlItem& ci = *(iItems[j]); |
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if (CMIDForm::LayoutShrink(ci)) |
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{ |
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TInt minAndPreferredDif = ci.PreferredSize().iWidth - ci.MinimumSize().iWidth; |
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TInt newMinAndPreferredDif = TInt(scaleFactor * TReal(minAndPreferredDif)); |
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TInt newWidth = ci.MinimumSize().iWidth + Min(newMinAndPreferredDif, minAndPreferredDif); |
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availableWidth -= Min(newMinAndPreferredDif, minAndPreferredDif); |
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ci.SetSizeQuiet(TSize(newWidth, ci.Size().iHeight)); |
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} |
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else |
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{ |
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ci.SetSizeQuiet(TSize(ci.PreferredSize().iWidth, ci.Size().iHeight)); |
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} |
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} |
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} |
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// note: should probably do another pass through to make sure the above step |
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// went ok and didn't suffer from rounding errors (ie that the Shrink items didn't |
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// end up smaller than their preferred size (if we have size left over) |
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// loop through and expand the items with Expand layout |
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if (availableWidth > 0) |
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{ |
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TInt numExpand = 0; |
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// count the items with Expand layout |
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for (TInt j=0; j < iItems.Count(); j++) |
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{ |
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CMIDControlItem& ci = *(iItems[j]); |
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if (CMIDForm::LayoutExpand(ci)) |
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{ |
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numExpand++; |
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} |
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} |
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if (numExpand > 0) |
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{ |
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TInt addedSize = availableWidth / numExpand; |
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TInt expandIdx = -1; |
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for (TInt j=0; j < iItems.Count(); j++) |
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{ |
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CMIDControlItem& ci = *(iItems[j]); |
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if (CMIDForm::LayoutExpand(ci)) |
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{ |
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ci.SetSizeQuiet(ci.Size() + TSize(addedSize, 0)); |
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availableWidth -= addedSize; |
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expandIdx = j; |
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// at the end of the loop this will hold the last expanded |
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// item. At that time we can check if we still have extra |
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// space remaining and give it to the item at this index |
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} |
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} |
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if (availableWidth > 0) |
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{ |
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// if we still have extra width due to rounding error just give it to the last item |
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iItems[expandIdx]->SetSizeQuiet(iItems[expandIdx]->Size() + TSize(availableWidth, 0)); |
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} |
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} |
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} |
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} |
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// the widths have been calculated. This could have changed the height |
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// due to for example label wrapping so ask the control to check |
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// the new width. |
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TInt j; |
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for (j=0; j < iItems.Count(); j++) |
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{ |
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CMIDControlItem& ci = *(iItems[j]); |
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ci.AdjustToNewWidthL(ci.Size().iWidth); |
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} |
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// now size the heights |
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// first find the row height |
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TInt rowHeight = 0; |
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for (j=0; j < iItems.Count(); j++) |
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{ |
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CMIDControlItem& ci = *(iItems[j]); |
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TInt height = ci.PreferredSize().iHeight; |
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if (CMIDForm::LayoutVerticalShrink(ci)) |
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{ |
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height = ci.MinimumSize().iHeight; |
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} |
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if (height > rowHeight) |
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{ |
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rowHeight = height; |
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} |
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} |
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if (iItems.Count() == 0) |
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{//if not items use empty row height |
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rowHeight = iEmptyRowSize.iHeight; |
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} |
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// now set the row heights |
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for (j=0; j < iItems.Count(); j++) |
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{ |
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CMIDControlItem& ci = *(iItems[j]); |
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// first set the size normally, then change it based on shrink and expand directives |
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ci.SetSizeQuiet(TSize(ci.Size().iWidth, ci.PreferredSize().iHeight)); |
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if (CMIDForm::LayoutVerticalShrink(ci)) |
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{ |
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TInt height = Min(ci.PreferredSize().iHeight, rowHeight); |
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ci.SetSizeQuiet(TSize(ci.Size().iWidth, height)); |
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} |
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if (CMIDForm::LayoutVerticalExpand(ci)) |
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{ |
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ci.SetSizeQuiet(TSize(ci.Size().iWidth, rowHeight)); |
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} |
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ci.AdjustToSizeL(ci.Size()); |
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} |
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// set the size of the row |
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SetSize(TSize(iForm.Width(), rowHeight)); |
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} |
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TInt CMIDFormRow::NumItems() |
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{ |
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return iItems.Count(); |
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} |
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TInt CMIDFormRow::Find(const CMIDControlItem* aItem) const |
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{ |
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for (TInt i=0; i < iItems.Count(); i++) |
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{ |
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if (aItem == iItems[i]) |
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{ |
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return i; |
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} |
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} |
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return KErrNotFound; |
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} |
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CMIDControlItem* CMIDFormRow::Item(TInt aIndex) |
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{ |
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ASSERT(aIndex >= 0 && aIndex < iItems.Count()); |
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return iItems[aIndex]; |
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} |
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TBool CMIDFormRow::HasFocusableItemOnOrAboveScreen() |
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{ |
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for (TInt i=0; i < iItems.Count(); i++) |
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{ |
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if (iItems[i]->IsSelectable()) |
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{ |
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TRect rect = iItems[i]->Rect(); |
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if (rect.iTl.iY < iForm.Height()) |
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{ |
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return ETrue; |
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} |
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} |
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} |
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return EFalse; |
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} |
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TBool CMIDFormRow::HasFocusableItemOnOrBelowScreen() |
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{ |
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for (TInt i=0; i < iItems.Count(); i++) |
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{ |
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if (iItems[i]->IsSelectable()) |
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{ |
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TRect rect = iItems[i]->Rect(); |
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if (rect.iBr.iY >= 0) |
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{ |
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return ETrue; |
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} |
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} |
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} |
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return EFalse; |
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} |
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CMIDControlItem* CMIDFormRow::FirstFocusableItemOnScreen() |
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{ |
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TInt idx = -1; |
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while (++idx < iItems.Count()) |
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{ |
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if (iItems[idx]->IsSelectable()) |
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{ |
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TRect rect = iItems[idx]->Rect(); |
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if (iForm.RectPartiallyVisible(rect)) |
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{ |
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return iItems[idx]; |
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} |
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} |
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} |
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return NULL; |
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} |
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CMIDControlItem* CMIDFormRow::FirstFocusableItem() |
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{ |
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TInt idx = -1; |
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while (++idx < iItems.Count()) |
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{ |
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if (iItems[idx]->IsSelectable()) |
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{ |
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return iItems[idx]; |
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} |
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} |
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return NULL; |
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} |
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CMIDControlItem* CMIDFormRow::LastFocusableItem() |
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{ |
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TInt idx = iItems.Count(); |
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while (--idx >= 0) |
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{ |
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if (iItems[idx]->IsSelectable()) |
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{ |
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return iItems[idx]; |
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} |
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} |
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return NULL; |
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} |
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// typically just used when cleaning up. This won't cause a layout. |
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TBool CMIDFormRow::RemoveItemIfExists(CMIDControlItem& aItem) |
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{ |
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TInt i = -1; |
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while (++i < iItems.Count()) |
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{ |
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if (&aItem == iItems[i]) |
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{ |
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iItems.Remove(i); |
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return ETrue; |
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} |
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} |
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return EFalse; |
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} |
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462 |
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TInt CMIDFormRow::CurrentWidth() |
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{ |
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return iCurrentWidth; |
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} |
|
467 |
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468 |
CMIDFormRow::CMIDFormRow(CMIDForm& aForm) |
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:iForm(aForm) |
|
470 |
{ |
|
471 |
#ifdef RD_SCALABLE_UI_V2 |
|
472 |
SetAllowStrayPointers(); |
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83
26b2b12093af
Revision: v2.2.17
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
66
diff
changeset
|
473 |
#endif |
66 | 474 |
} |
475 |
||
476 |
void CMIDFormRow::ConstructL() |
|
477 |
{ |
|
478 |
} |
|
479 |
||
480 |
/** |
|
481 |
* Returns true if this row has at least an item which is not a spacer |
|
482 |
*/ |
|
483 |
TBool CMIDFormRow::HasNonSpacerItems() const |
|
484 |
{ |
|
485 |
TBool ret = EFalse; |
|
486 |
||
487 |
TInt i = -1; |
|
488 |
while (++i < iItems.Count()) |
|
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{ |
|
490 |
if (iItems[i]->Type() != MMIDComponent::ESpacer) |
|
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{ |
|
492 |
ret = ETrue; |
|
493 |
break; |
|
494 |
} |
|
495 |
} |
|
496 |
||
497 |
return ret; |
|
498 |
} |
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499 |
||
500 |
// End of File |