author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 27 May 2010 13:11:12 +0300 | |
changeset 80 | 397d00875918 |
parent 73 | 4bc7b118b3df |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 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 : |
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* |
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*/ |
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#include "activitygraphicfilescaling.h" |
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#include <imageconversion.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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CGraphicsSalingHandler::CGraphicsSalingHandler(MImageReadyCallBack &aNotify, |
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const TSize &aNewSize, |
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TKindOfScaling aKindOfScaling |
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/* = CGraphicsSalingHandler::EIgnoreAspectRatio*/) : |
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CActive(EPriorityNormal), |
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mNotify(aNotify), |
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mNewSize(aNewSize), |
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mKindOfScaling(aKindOfScaling), |
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mCurrentOperation(ENone) |
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{ |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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CGraphicsSalingHandler::~CGraphicsSalingHandler() |
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{ |
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Cancel(); |
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delete mBitmapFromFile; |
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delete mBitmapOutput; |
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delete mImageDecoder; |
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delete mBitmapScaler; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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CGraphicsSalingHandler* CGraphicsSalingHandler::NewL(MImageReadyCallBack &aNotify, |
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RFs &aFs, |
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const TDesC &aFileName, |
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const TDesC8& aMimeType, |
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const TSize &aNewSize, |
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TKindOfScaling aKindOfScaling |
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/* = CGraphicsSalingHandler::EIgnoreAspectRatio*/) |
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{ |
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CGraphicsSalingHandler *self = CGraphicsSalingHandler::NewLC(aNotify, |
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aFs, |
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aFileName, |
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aMimeType, |
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aNewSize, |
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aKindOfScaling); |
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CleanupStack::Pop(); |
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return self; |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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CGraphicsSalingHandler* CGraphicsSalingHandler::NewLC(MImageReadyCallBack &aNotify, |
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RFs &aFs, |
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const TDesC &aFileName, |
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const TDesC8& aMimeType, |
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const TSize &aNewSize, |
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TKindOfScaling aKindOfScaling |
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/* = CGraphicsSalingHandler::EIgnoreAspectRatio*/) |
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{ |
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CGraphicsSalingHandler *self = new (ELeave) CGraphicsSalingHandler(aNotify, |
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aNewSize, |
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aKindOfScaling); |
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CleanupStack::PushL(self); |
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self->ConstructL(aFs, aFileName, aMimeType); |
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return self; |
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} |
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// ----------------------------------------------------------------------------- |
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// ----------------------------------------------------------------------------- |
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// |
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void CGraphicsSalingHandler::ConstructL(RFs &aFs, const TDesC &aFileName, const TDesC8& aMimeType) |
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{ |
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if (aFileName.Length() == 0 |
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|| aFs.IsValidName(aFileName) == EFalse) { |
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User::Leave(KErrPathNotFound); |
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} |
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if (aMimeType.Length() == 0) { |
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User::Leave(KErrBadName); |
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} |
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104 |
|
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|
105 |
if(0>=mNewSize.iWidth || 0>=mNewSize.iHeight) { |
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|
106 |
User::Leave(KErrCorrupt); |
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|
107 |
} |
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|
108 |
|
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|
109 |
CActiveScheduler::Add(this); |
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|
110 |
|
73
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|
111 |
mBitmapScaler = CBitmapScaler::NewL(); |
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|
112 |
mBitmapScaler->SetQualityAlgorithm(CBitmapScaler::EMaximumQuality); |
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diff
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|
113 |
|
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|
114 |
// convert *.png to bitmap |
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|
115 |
mImageDecoder = CImageDecoder::FileNewL(aFs, aFileName, aMimeType); |
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|
116 |
mBitmapFromFile = new(ELeave)CFbsBitmap(); |
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|
117 |
const TFrameInfo frameInfo(mImageDecoder->FrameInfo(0)); |
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|
118 |
User::LeaveIfError(mBitmapFromFile->Create(frameInfo.iOverallSizeInPixels, |
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|
119 |
frameInfo.iFrameDisplayMode)); |
80
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|
120 |
|
73
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|
121 |
mImageDecoder->Convert(&iStatus, *mBitmapFromFile, 0); |
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|
122 |
mCurrentOperation = EConvertBitmapFromFile; |
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|
123 |
SetActive(); |
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|
124 |
} |
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|
125 |
|
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|
126 |
// ----------------------------------------------------------------------------- |
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|
127 |
// ----------------------------------------------------------------------------- |
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|
128 |
// |
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|
129 |
void CGraphicsSalingHandler::DoCancel() |
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130 |
{ |
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|
131 |
switch (mCurrentOperation) { |
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|
132 |
case EConvertBitmapFromFile: |
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|
133 |
mImageDecoder->Cancel(); |
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|
134 |
break; |
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diff
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|
135 |
case EScale: |
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|
136 |
mBitmapScaler->Cancel(); |
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|
137 |
break; |
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diff
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|
138 |
} |
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|
139 |
mNotify.ImageReadyCallBack(KErrCancel, 0); |
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|
140 |
} |
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diff
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|
141 |
|
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|
142 |
// ----------------------------------------------------------------------------- |
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|
143 |
// ----------------------------------------------------------------------------- |
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|
144 |
// |
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|
145 |
void CGraphicsSalingHandler::RunL() |
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|
146 |
{ |
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Revision: 201017
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|
147 |
if(iStatus.Int()){ |
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Revision: 201017
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|
148 |
mNotify.ImageReadyCallBack(iStatus.Int(), 0); |
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|
149 |
return; |
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|
150 |
} |
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diff
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|
151 |
|
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Revision: 201017
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|
152 |
switch (mCurrentOperation) { |
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Revision: 201017
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|
153 |
case EConvertBitmapFromFile: { |
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diff
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|
154 |
delete mImageDecoder; |
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Revision: 201017
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diff
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|
155 |
mImageDecoder = 0; |
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|
156 |
|
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Revision: 201017
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|
157 |
mBitmapOutput = new (ELeave)CFbsBitmap(); |
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diff
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|
158 |
User::LeaveIfError(mBitmapOutput->Create(Scaling(), mBitmapFromFile->DisplayMode())); |
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Revision: 201017
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|
159 |
mBitmapScaler->Scale(&iStatus, *mBitmapFromFile, *mBitmapOutput, EFalse); |
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|
160 |
mCurrentOperation = EScale; |
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Revision: 201017
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|
161 |
SetActive(); |
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Revision: 201017
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diff
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|
162 |
break; |
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Revision: 201017
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parents:
diff
changeset
|
163 |
} |
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Revision: 201017
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parents:
diff
changeset
|
164 |
case EScale: { |
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Revision: 201017
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parents:
diff
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|
165 |
mCurrentOperation = ENone; |
80
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73
diff
changeset
|
166 |
|
73
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Revision: 201017
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parents:
diff
changeset
|
167 |
delete mBitmapScaler; |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
168 |
mBitmapScaler = 0; |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
169 |
|
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
170 |
delete mBitmapFromFile; |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
171 |
mBitmapFromFile = 0; |
80
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diff
changeset
|
172 |
|
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|
173 |
if (mKindOfScaling == CGraphicsSalingHandler::EKeepAspectRatioByExpanding) { |
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changeset
|
174 |
User::LeaveIfError(mBitmapOutput->Resize(mNewSize)); |
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changeset
|
175 |
} |
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diff
changeset
|
176 |
|
73
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Revision: 201017
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diff
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|
177 |
mNotify.ImageReadyCallBack(iStatus.Int(), mBitmapOutput); |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
178 |
break; |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
179 |
} |
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Revision: 201017
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diff
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|
180 |
} |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
181 |
} |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
182 |
|
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Revision: 201017
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parents:
diff
changeset
|
183 |
// ----------------------------------------------------------------------------- |
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Revision: 201017
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parents:
diff
changeset
|
184 |
// ----------------------------------------------------------------------------- |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
185 |
// |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
186 |
TSize CGraphicsSalingHandler::Scaling() |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
187 |
{ |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
188 |
TSize originalSize = mBitmapFromFile->SizeInPixels(); |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
189 |
float widthFactor = mNewSize.iWidth / (float)originalSize.iWidth; |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
190 |
float heightFactor = mNewSize.iHeight / (float)originalSize.iHeight; |
80
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diff
changeset
|
191 |
|
73
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
192 |
TSize retSize(mNewSize); |
80
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diff
changeset
|
193 |
|
73
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
194 |
if (mKindOfScaling == CGraphicsSalingHandler::EKeepAspectRatio) { |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
195 |
retSize = (widthFactor < heightFactor) ? |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
196 |
TSize(mNewSize.iWidth, widthFactor * originalSize.iHeight) : |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
197 |
TSize(heightFactor * originalSize.iWidth, mNewSize.iHeight); |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
198 |
} else if (mKindOfScaling == CGraphicsSalingHandler::EKeepAspectRatioByExpanding) { |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
199 |
retSize = (widthFactor < heightFactor) ? |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
200 |
TSize(heightFactor * originalSize.iWidth, mNewSize.iHeight) : |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
201 |
TSize(mNewSize.iWidth, widthFactor * originalSize.iHeight); |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
202 |
} |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
203 |
return retSize; |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
204 |
} |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
205 |
// ----------------------------------------------------------------------------- |
4bc7b118b3df
Revision: 201017
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parents:
diff
changeset
|
206 |
// ----------------------------------------------------------------------------- |
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Revision: 201017
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parents:
diff
changeset
|
207 |
// |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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208 |
TInt CGraphicsSalingHandler::RunError(TInt aError) |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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{ |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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mNotify.ImageReadyCallBack(aError, 0); |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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return KErrNone; |
4bc7b118b3df
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} |