author | Pat Downey <patd@symbian.org> |
Mon, 12 Jul 2010 14:31:09 +0100 | |
branch | RCL_3 |
changeset 66 | 5bdb7513a04f |
parent 38 | 79311d856354 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008 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: Preview provider ECOM plugin |
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* |
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*/ |
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|
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|
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#include <bldvariant.hrh> |
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#ifdef SYMBIAN_BUILD_GCE |
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#define NGA |
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#endif |
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|
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#include "previewprovidercrp.h" |
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#include "previewmsg.h" |
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#include "previewprovidercrplogging.h" |
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#include <ecom/implementationproxy.h> |
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#include <s32mem.h> //RDesReadStream |
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|
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#ifdef NGA |
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#include <graphics/wsscreendevice.h> |
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#endif |
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// CONSTANTS |
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const TInt KImpId( 0x20016BEC ); |
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const TInt KMinTimeForOrientationSwitch = 1; // 1 second |
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::CreateL |
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// -------------------------------------------------------------------------- |
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// |
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CWsGraphicDrawer* CPreviewProviderCRP::CreateL() |
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{ |
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CPreviewProviderCRP* crp = new (ELeave) CPreviewProviderCRP(); |
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CleanupStack::PushL( crp ); |
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crp->ConstructL(); |
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CleanupStack::Pop( crp ); |
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return crp; |
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} |
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::ConstructL |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::ConstructL() |
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{ |
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iLastWgIdRedraw = ETrue; |
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} |
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::~CPreviewProviderCRP |
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// -------------------------------------------------------------------------- |
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// |
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CPreviewProviderCRP::~CPreviewProviderCRP() |
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{ |
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Env().UnregisterEventHandler( this ); |
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iScreenshots.ResetAndDestroy(); |
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iWgIds.Close(); |
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} |
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::DoDraw |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::DoDraw( MWsGc& /*aGc*/, const TRect& /*aRect*/, |
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const TDesC8& /*aData*/) const |
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{ |
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//draws nothing |
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} |
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::HandleMessage |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::HandleMessage( const TDesC8& aData ) |
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{ |
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TRAP_IGNORE( DoHandleMessageL( aData ) ); |
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} |
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::DoHandleMessageL |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::DoHandleMessageL( const TDesC8& aData ) |
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{ |
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TSLOG_CONTEXT( DoHandleMessageL, TSLOG_LOCAL ); |
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TSLOG_IN(); |
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RDesReadStream in( aData ); |
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switch( in.ReadInt32L() ) |
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{ |
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case NPreviewMsg::ERegister: |
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{ |
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const TInt id = in.ReadInt32L(); |
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Register( id ); |
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} |
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|
107 |
break; |
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|
108 |
case NPreviewMsg::EUnregister: |
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|
109 |
{ |
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|
110 |
const TInt id = in.ReadInt32L(); |
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|
111 |
Unregister( id ); |
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112 |
} |
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|
113 |
break; |
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|
114 |
case NPreviewMsg::EChangeScreen: |
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115 |
{ |
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116 |
const TInt screen = in.ReadInt32L(); |
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117 |
if ( Env().ScreenCount() ) |
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118 |
{ |
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119 |
iScreen = screen; |
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120 |
} |
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121 |
} |
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122 |
break; |
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123 |
case NPreviewMsg::ESetPreviewParam: |
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124 |
iScreenshotSize.iWidth = in.ReadInt32L(); |
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iScreenshotSize.iHeight = in.ReadInt32L(); |
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126 |
iScreenshotMode = static_cast<TDisplayMode>( in.ReadInt32L() ); |
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127 |
break; |
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128 |
case NPreviewMsg::ETakePreview: |
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129 |
ScreenshotL(); |
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130 |
break; |
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131 |
case NPreviewMsg::EAckPreviewReady: |
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132 |
RemoveScreenshot( in.ReadInt32L() ); |
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133 |
break; |
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134 |
} |
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135 |
|
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136 |
TSLOG_OUT(); |
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137 |
} |
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138 |
|
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139 |
// -------------------------------------------------------------------------- |
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140 |
// CPreviewProviderCRP::ConstructL |
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141 |
// -------------------------------------------------------------------------- |
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142 |
// |
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143 |
void CPreviewProviderCRP::ConstructL( MWsGraphicDrawerEnvironment& aEnv, |
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144 |
const TGraphicDrawerId& aId, MWsClient& aOwner, const TDesC8& /*aData*/ ) |
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145 |
{ |
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146 |
TSLOG_CONTEXT( ConstructL, TSLOG_LOCAL ); |
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147 |
TSLOG_IN(); |
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148 |
|
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149 |
BaseConstructL( aEnv, aId, aOwner ); |
15
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150 |
aEnv.RegisterEventHandler( this, this, TWservCrEvent::EWindowGroupChanged | |
38
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151 |
TWservCrEvent::EDeviceOrientationChanged | |
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152 |
TWservCrEvent::EScreenDrawing ); |
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153 |
iScreenChangedTime = 0; |
4
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|
154 |
|
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155 |
TSLOG_OUT(); |
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156 |
} |
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|
157 |
|
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|
158 |
// -------------------------------------------------------------------------- |
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159 |
// CPreviewProviderCRP::DoHandleEvent |
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160 |
// -------------------------------------------------------------------------- |
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161 |
// |
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162 |
void CPreviewProviderCRP::DoHandleEvent( const TWservCrEvent& aEvent ) |
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|
163 |
{ |
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Revision: 201001
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|
164 |
TSLOG_CONTEXT( DoHandleEvent, TSLOG_LOCAL ); |
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|
165 |
TSLOG_IN(); |
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|
166 |
|
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|
167 |
if ( aEvent.Type() == TWservCrEvent::EWindowGroupChanged ) |
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|
168 |
{ |
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Revision: 201001
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|
169 |
const TInt wgId = aEvent.WindowGroupIdentifier(); |
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|
170 |
if ( iWgIds.FindInOrder( iPrevId ) >= 0 || |
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|
171 |
( iPrevId == 0 && iPrevReg != 0 ) ) |
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Revision: 201001
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|
172 |
{ |
15
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|
173 |
TTime currTime; |
ff572dfe6d86
Revision: 201007
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|
174 |
currTime.HomeTime(); |
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|
175 |
TTimeIntervalSeconds secondsFrom; |
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|
176 |
TInt err = currTime.SecondsFrom( iScreenChangedTime, secondsFrom ); |
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|
177 |
if ( err != KErrNone || secondsFrom.Int() > KMinTimeForOrientationSwitch ) |
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|
178 |
{ |
38
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|
179 |
if ( iLastWgIdRedraw ) |
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|
180 |
{ |
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|
181 |
TRAP_IGNORE( ScreenshotL() ); |
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Revision: 201015
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|
182 |
} |
15
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|
183 |
} |
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Revision: 201007
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|
184 |
else |
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Revision: 201007
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diff
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|
185 |
{ |
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diff
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|
186 |
// Reset time to allow screenshot taking on next wg change |
ff572dfe6d86
Revision: 201007
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|
187 |
iScreenChangedTime = 0; |
ff572dfe6d86
Revision: 201007
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diff
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|
188 |
// Order screenshot rotation |
ff572dfe6d86
Revision: 201007
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diff
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|
189 |
BitmapRotationNeeded( iPrevId?iPrevId:iPrevReg, iClockwiseRot ); |
ff572dfe6d86
Revision: 201007
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diff
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|
190 |
} |
4
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|
191 |
iPrevReg = 0; |
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Revision: 201001
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|
192 |
} |
4d54b72983ae
Revision: 201001
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|
193 |
iPrevId = wgId; |
38
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|
194 |
iLastWgIdRedraw = EFalse; |
4
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|
195 |
} |
15
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|
196 |
else if ( aEvent.Type() == TWservCrEvent::EDeviceOrientationChanged ) |
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|
197 |
{ |
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|
198 |
iScreenChangedTime.HomeTime(); |
38
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Revision: 201015
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|
199 |
if ( iLastWgIdRedraw ) |
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diff
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|
200 |
{ |
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Revision: 201015
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|
201 |
TRAP_IGNORE( ScreenshotL() ); |
79311d856354
Revision: 201015
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diff
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|
202 |
} |
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Revision: 201015
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diff
changeset
|
203 |
} |
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Revision: 201015
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diff
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|
204 |
else if ( aEvent.Type() == TWservCrEvent::EScreenDrawing ) |
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|
205 |
{ |
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Revision: 201015
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|
206 |
iLastWgIdRedraw = ETrue; |
15
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Revision: 201007
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|
207 |
} |
4
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diff
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|
208 |
|
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Revision: 201001
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diff
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|
209 |
TSLOG_OUT(); |
4d54b72983ae
Revision: 201001
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diff
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|
210 |
} |
4d54b72983ae
Revision: 201001
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parents:
diff
changeset
|
211 |
|
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::ScaleComplete |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::ScaleCompleteL( const CFbsBitmap& aBitmap ) |
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{ |
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TSLOG_CONTEXT( ScaleComplete, TSLOG_LOCAL ); |
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TSLOG_IN(); |
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const TInt msg[] = { |
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NPreviewMsg::EPreviewReady, |
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iPrevId?iPrevId:iPrevReg, |
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aBitmap.Handle() |
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}; |
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TPckgC<TInt[sizeof(msg) / sizeof(TInt)]> buf(msg); |
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User::LeaveIfError( SendMessage( buf ) ); |
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TSLOG3( TSLOG_INFO, "size = %dx%d handle = %d", |
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aBitmap.SizeInPixels().iWidth, |
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aBitmap.SizeInPixels().iHeight, |
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aBitmap.Handle() ); |
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TSLOG_OUT(); |
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} |
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|
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::UnregisterComplete |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::UnregisterComplete( TInt aWgId ) |
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{ |
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TSLOG_CONTEXT( UnregisterComplete, TSLOG_LOCAL ); |
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TSLOG_IN(); |
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|
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const TInt msg[] = { |
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NPreviewMsg::EUnregisterReady, |
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aWgId, |
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0 |
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}; |
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TPckgC<TInt[sizeof(msg) / sizeof(TInt)]> buf(msg); |
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SendMessage(buf); |
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|
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TSLOG_OUT(); |
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} |
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|
15
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|
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::BitmapRotationNeeded |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::BitmapRotationNeeded( TInt aWgId, TBool aClockwise ) |
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{ |
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TSLOG_CONTEXT( BitmapRotationNeeded, TSLOG_LOCAL ); |
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TSLOG_IN(); |
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|
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const TInt msg[] = { |
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aClockwise ? NPreviewMsg::EBitmapRotationNeeded90 : NPreviewMsg::EBitmapRotationNeeded270, |
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aWgId, |
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0 |
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}; |
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TPckgC<TInt[sizeof(msg) / sizeof(TInt)]> buf(msg); |
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SendMessage(buf); |
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|
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TSLOG_OUT(); |
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} |
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|
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|
4
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::Register |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::Register( TInt aWgId ) |
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{ |
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TSLOG_CONTEXT( Register, TSLOG_LOCAL ); |
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TSLOG_IN(); |
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|
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iPrevReg = aWgId; |
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iWgIds.InsertInOrder( aWgId ); |
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|
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TSLOG_OUT(); |
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} |
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|
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::Unregister |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::Unregister( TInt aWgId ) |
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{ |
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TSLOG_CONTEXT( Unregister, TSLOG_LOCAL ); |
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TSLOG_IN(); |
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|
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const TInt index = iWgIds.FindInOrder( aWgId ); |
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if ( index >= 0 ) |
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{ |
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iWgIds.Remove( index ); |
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} |
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|
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UnregisterComplete( aWgId ); |
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TSLOG_OUT(); |
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} |
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|
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::ScreenShotL |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::ScreenshotL() |
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{ |
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CFbsBitmap* screenshot = new (ELeave)CFbsBitmap(); |
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319 |
CleanupStack::PushL( screenshot ); |
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320 |
ScreenshotL( *screenshot ); |
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ScaleCompleteL( *screenshot ); |
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iScreenshots.InsertL( screenshot, iScreenshots.Count() ); |
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323 |
CleanupStack::Pop( screenshot ); |
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CheckOverflow(); |
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325 |
} |
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326 |
|
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327 |
// -------------------------------------------------------------------------- |
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328 |
// CPreviewProviderCRP::ScreenShotL |
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// -------------------------------------------------------------------------- |
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330 |
// |
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331 |
void CPreviewProviderCRP::ScreenshotL(CFbsBitmap& aBitmap) |
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332 |
{ |
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333 |
TSLOG_CONTEXT( ScreenShot, TSLOG_LOCAL ); |
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334 |
TSLOG_IN(); |
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335 |
|
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336 |
if( 0 > iScreen || Env().ScreenCount() <= iScreen ) |
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337 |
{ |
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338 |
//screen offset out of range. skip request |
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User::Leave(KErrArgument); |
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340 |
} |
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341 |
// Find the screen resolution |
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342 |
MWsScreenConfig* screenConfig = |
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Env().Screen( iScreen )->ObjectInterface<MWsScreenConfig>(); |
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344 |
|
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const TSize sz = screenConfig->ScreenModeSizeInPixels(); |
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346 |
|
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347 |
// Get the screen buffer (containing screenshot data) |
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348 |
MWsFrontBuffer* screenFront = |
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Env().Screen( iScreen )->ObjectInterface<MWsFrontBuffer>(); |
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350 |
|
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351 |
// With NGA we do not support downscaling of the screenshots. |
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352 |
// So use the size of the screen if no screenshot size has been explicitly |
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353 |
// set or if the old method for taking screenshots is not available. |
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354 |
if ( iScreenshotSize.iWidth == 0 || |
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355 |
iScreenshotSize.iHeight == 0 || |
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356 |
!screenFront ) |
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357 |
{ |
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358 |
iScreenshotSize = sz; |
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359 |
} |
15
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360 |
|
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361 |
// Mark direction for possible rotation |
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362 |
iClockwiseRot = iScreenshotSize.iWidth > iScreenshotSize.iHeight; |
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363 |
|
4
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364 |
// Use the the same DisplayMode as for the source image |
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365 |
// so override the display mode, ignoring any requests. |
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366 |
iScreenshotMode = screenConfig->DisplayMode(); |
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367 |
|
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368 |
TSLOG3( TSLOG_INFO, "iShotSize: %dx%d mode: %d", |
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369 |
iScreenshotSize.iWidth, iScreenshotSize.iHeight, iScreenshotMode ); |
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|
370 |
|
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371 |
aBitmap.Reset(); |
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372 |
User::LeaveIfError( aBitmap.Create( iScreenshotSize, iScreenshotMode ) ); |
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|
373 |
|
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374 |
// Check if front buffer is available. |
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375 |
// Will always be NULL with NGA. |
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376 |
if ( screenFront ) |
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377 |
{ |
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|
378 |
TSLOG0( TSLOG_INFO, "non-NGA, using front buffer" ); |
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|
379 |
FrontBufferScreenShot( aBitmap, *screenFront, sz, screenConfig->Stride() ); |
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|
380 |
} |
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|
381 |
#ifdef NGA |
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382 |
else |
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|
383 |
{ |
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|
384 |
TSLOG0( TSLOG_INFO, "NGA, using CopyScreenToBitmapL" ); |
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|
385 |
MWsScreenDevice* screenDevice = static_cast<MWsScreenDevice*>( |
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|
386 |
Env().Screen( iScreen )->ResolveObjectInterface( |
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|
387 |
MWsScreenDevice::EWsObjectInterfaceId ) ); |
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|
388 |
User::LeaveIfNull( screenDevice ); |
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|
389 |
screenDevice->CopyScreenToBitmapL( &aBitmap, iScreenshotSize ); |
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|
390 |
} |
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|
391 |
#endif |
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|
392 |
TSLOG_OUT(); |
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|
393 |
} |
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|
394 |
|
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|
395 |
// -------------------------------------------------------------------------- |
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396 |
// CPreviewProviderCRP::RemoveScreenshot |
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|
397 |
// -------------------------------------------------------------------------- |
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398 |
// |
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|
399 |
void CPreviewProviderCRP::RemoveScreenshot( TInt aBitmapHandle ) |
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|
400 |
{ |
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|
401 |
for( int iter(0); iter < iScreenshots.Count(); ++iter ) |
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|
402 |
{ |
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|
403 |
if( iScreenshots[iter]->Handle() == aBitmapHandle ) |
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|
404 |
{ |
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|
405 |
delete iScreenshots[iter]; |
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|
406 |
iScreenshots.Remove(iter); |
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|
407 |
break; |
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|
408 |
} |
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|
409 |
} |
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|
410 |
} |
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|
411 |
|
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|
412 |
// -------------------------------------------------------------------------- |
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|
413 |
// CPreviewProviderCRP::CheckOverflow |
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|
414 |
// -------------------------------------------------------------------------- |
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|
415 |
// |
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|
416 |
void CPreviewProviderCRP::CheckOverflow() |
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|
417 |
{ |
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Revision: 201001
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|
418 |
TInt overflow( iScreenshots.Count() - KMaxShots); |
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Revision: 201001
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|
419 |
while( 0 < overflow-- ) |
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|
420 |
{ |
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Revision: 201001
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|
421 |
delete iScreenshots[0]; |
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Revision: 201001
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|
422 |
iScreenshots.Remove(0); |
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diff
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} |
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} |
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|
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::FrontBufferScreenShot |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::FrontBufferScreenShot( CFbsBitmap& aBitmap, |
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MWsFrontBuffer& aFront, |
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const TSize& aSrcSize, |
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TInt aSrcStride ) |
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{ |
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TSLOG_CONTEXT( CPreviewProviderCRP::FrontBufferScreenShot, TSLOG_LOCAL ); |
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TSLOG_IN(); |
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|
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const TUint8* src = static_cast<const TUint8*> ( aFront.GetBits() ); |
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TSLOG1( TSLOG_INFO, "src address = [%d]", src ); |
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440 |
|
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TInt srcstride( aSrcStride ); |
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TInt srcwidth( aSrcSize.iWidth ); |
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TInt srcheight( aSrcSize.iHeight ); |
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TInt dststride( aBitmap.DataStride() ); |
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TInt dstheight( iScreenshotSize.iHeight ); |
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TInt dstwidth( iScreenshotSize.iWidth ); |
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TInt stepdst( dststride / dstwidth ); |
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TInt stepsrc( srcstride / srcwidth ); |
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// scale must be TInt type |
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TInt scaleX( aSrcSize.iWidth / iScreenshotSize.iWidth ); |
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TInt scaleY( aSrcSize.iHeight / iScreenshotSize.iHeight ); |
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452 |
|
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aBitmap.LockHeap(); |
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454 |
|
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TUint8* dst = ( TUint8* ) aBitmap.DataAddress(); |
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|
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TInt minWidth = Min( srcwidth, dstwidth ); |
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TInt minHeight = Min( srcheight, dstheight ); |
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TInt minStep = Min( stepsrc, stepdst ); |
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|
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for ( TInt y = minHeight; y > 0; y-- ) |
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{ |
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for ( TInt x = minWidth; x > 0; x-- ) |
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{ |
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Mem::Copy( dst, src, minStep ); |
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dst += stepdst; |
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src += scaleX*stepdst; |
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} |
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src += srcstride - scaleX * stepdst * minWidth; |
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src += ( scaleY - 1 ) * srcstride; |
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} |
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|
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aBitmap.UnlockHeap(); |
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TSLOG_OUT(); |
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} |
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476 |
|
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// -------------------------------------------------------------------------- |
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// KImplementationTable |
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// -------------------------------------------------------------------------- |
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// |
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LOCAL_C const TImplementationProxy KImplementationTable[] = |
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{ |
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IMPLEMENTATION_PROXY_ENTRY(KImpId, CPreviewProviderCRP::CreateL) |
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}; |
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485 |
|
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// -------------------------------------------------------------------------- |
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// ImplementationGroupProxy |
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// -------------------------------------------------------------------------- |
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489 |
// |
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EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount) |
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491 |
{ |
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aTableCount = (sizeof(KImplementationTable) / sizeof(TImplementationProxy)); |
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return KImplementationTable; |
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} |
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495 |
|
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496 |
|
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497 |
// End of file |