author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 25 May 2010 12:29:32 +0300 | |
branch | RCL_3 |
changeset 25 | 137ebc85284b |
parent 0 | f72a12da539e |
child 26 | 1b758917cafc |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 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: floating item |
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* |
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*/ |
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|
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#include <e32math.h> |
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#include <eiklbv.h> |
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#include "mmfloatingitem.h" |
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|
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// ----------------------------------------------------------------------------- |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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TMmFloatingItem::TMmFloatingItem( TInt aDrawnIndex, TPoint aStartPosition, |
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TMmFloatingItemType aType, TInt aAnimationFrames, CListBoxView* aView ) |
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{ |
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iView = aView; |
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iSizeStep = 0; |
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iZoomRatio = 1; |
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iManualDelete = EFalse; |
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|
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if ( iView ) |
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{ |
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// item position is relative |
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iItemPosition = aStartPosition - iView->ItemPos( 0 ); |
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} |
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else |
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{ |
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// item position is absolute |
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iItemPosition = aStartPosition; |
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} |
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|
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iDrawnItemIndex = aDrawnIndex; |
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iType = aType; |
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iFrames = aAnimationFrames; |
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iFrameCounter = 0; |
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CalculateSteps(TPoint(0,0)); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void TMmFloatingItem::SetPositionStep( TPoint aDiffetenceVector ) |
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{ |
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ASSERT( iFrames ); |
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iFrameCounter = 0; |
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CalculateSteps( aDiffetenceVector ); |
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} |
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// ----------------------------------------------------------------------------- |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void TMmFloatingItem::CalculateSteps(TPoint aVector) |
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{ |
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iPositionStep.Reset(); |
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|
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TReal x = aVector.iX; |
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TReal y = aVector.iY; |
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|
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TReal sx = 0.0; |
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TReal sy = 0.0; |
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|
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for( TInt i = 0; i < iFrames; i++ ) |
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{ |
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TReal sin; |
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Math::Sin( sin, (i+1) * KPi/iFrames + KPi * 3./2. ); |
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TReal xx = x * (0.5*( sin + 1.0 ) ) - sx; |
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TReal yy = y * (0.5*( sin + 1.0 ) ) - sy; |
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|
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sx += xx; |
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sy += yy; |
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|
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iPositionStep.At(i) = TPoint( xx, yy ); |
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} |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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void TMmFloatingItem::SetSizeStep( TReal aStartSize, TReal aFinalSize ) |
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{ |
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ASSERT( iFrames ); |
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iFrameCounter = 0; |
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iZoomRatio = aStartSize; |
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iSizeStep = (aFinalSize - aStartSize) / iFrames; |
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} |
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|
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|
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// ----------------------------------------------------------------------------- |
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// |
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// ----------------------------------------------------------------------------- |
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// |
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107 |
TBool TMmFloatingItem::MakeStep() |
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108 |
{ |
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TBool ret(EFalse); |
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110 |
|
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if(iFrameCounter >= iFrames && iManualDelete == EFalse) |
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112 |
{ |
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InvalidateFloatingItem(); |
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114 |
} |
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else if (iFrameCounter < iFrames) |
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116 |
{ |
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iItemPosition += iPositionStep[iFrameCounter]; |
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iZoomRatio += iSizeStep; |
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ret = Abs(iPositionStep[iFrameCounter].iX) > 0 |
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|| Abs(iPositionStep[iFrameCounter].iY > 0) |
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|| Abs(iSizeStep) > 0; |
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iFrameCounter++; |
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} |
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124 |
|
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return ret; |
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} |
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127 |
|
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128 |
// ----------------------------------------------------------------------------- |
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129 |
// |
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130 |
// ----------------------------------------------------------------------------- |
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131 |
// |
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void TMmFloatingItem::SetManualDelete(TBool aManual) |
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133 |
{ |
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iManualDelete = aManual; |
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} |
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136 |
|
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// ----------------------------------------------------------------------------- |
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138 |
// |
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139 |
// ----------------------------------------------------------------------------- |
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140 |
// |
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TReal TMmFloatingItem::GetCurrentZoomRatio() const |
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142 |
{ |
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return iZoomRatio; |
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} |
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145 |
|
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// ----------------------------------------------------------------------------- |
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147 |
// |
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// ----------------------------------------------------------------------------- |
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149 |
// |
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150 |
TMmFloatingItemType TMmFloatingItem::GetFloatingItemType() const |
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151 |
{ |
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return iType; |
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153 |
} |
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154 |
|
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TInt TMmFloatingItem::GetDrawnItemIndex() const |
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156 |
{ |
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return iDrawnItemIndex; |
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} |
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159 |
|
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160 |
TPoint TMmFloatingItem::GetItemPosition() const |
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161 |
{ |
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TPoint ret; |
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if ( iView ) |
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164 |
{ |
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// item position is relative |
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ret = iItemPosition + iView->ItemPos( 0 ); |
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167 |
} |
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else |
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169 |
{ |
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// item position is absolute |
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ret = iItemPosition; |
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172 |
} |
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return ret; |
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174 |
} |
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175 |
|
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void TMmFloatingItem::InvalidateFloatingItem() |
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177 |
{ |
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iDrawnItemIndex = KErrNotFound; |
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179 |
} |
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180 |
|
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181 |
TBool TMmFloatingItem::IsFloatingItemValid() const |
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182 |
{ |
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return GetDrawnItemIndex() != KErrNotFound |
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&& iType != EPostDragRefreshItem |
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&& iType != EPostHighlightChangeRefreshItem; |
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186 |
} |
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187 |
|
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TBool TMmFloatingItem::IsManualDelete() |
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189 |
{ |
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190 |
return iManualDelete; |
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191 |
} |
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192 |
|
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TInt TMmFloatingItem::GetZoomingStatus() |
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194 |
{ |
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return iSizeStep; |
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196 |
} |
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197 |
// End of file |