author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 18 Jan 2010 20:10:36 +0200 | |
changeset 2 | 08c6ee43b396 |
permissions | -rw-r--r-- |
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/* |
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* ============================================================================== |
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* Name : %name: previewprovidercrp.cpp % |
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* Part of : Hg fast swap preview provider plugin |
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* Description : Preview provider ECOM plugin |
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* Version : %version: sa1spcx1#8 % |
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* |
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* Copyright (c) 2008 Nokia Corporation. |
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* This material, including documentation and any related |
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* computer programs, is protected by copyright controlled by |
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* Nokia Corporation. All rights are reserved. Copying, |
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* including reproducing, storing, adapting or translating, any |
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* or all of this material requires the prior written consent of |
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* Nokia Corporation. This material also contains confidential |
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* information which may not be disclosed to others without the |
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* prior written consent of Nokia Corporation. |
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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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// -------------------------------------------------------------------------- |
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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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} |
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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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// -------------------------------------------------------------------------- |
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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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HGLOG_CONTEXT( DoHandleMessageL, HGLOG_LOCAL ); |
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HGLOG_IN(); |
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|
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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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break; |
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107 |
case NPreviewMsg::EUnregister: |
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108 |
{ |
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const TInt id = in.ReadInt32L(); |
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Unregister( id ); |
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} |
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112 |
break; |
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case NPreviewMsg::EChangeScreen: |
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114 |
{ |
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const TInt screen = in.ReadInt32L(); |
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if ( Env().ScreenCount() ) |
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117 |
{ |
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iScreen = screen; |
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} |
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} |
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121 |
break; |
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case NPreviewMsg::ESetPreviewParam: |
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iScreenshotSize.iWidth = in.ReadInt32L(); |
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iScreenshotSize.iHeight = in.ReadInt32L(); |
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iScreenshotMode = static_cast<TDisplayMode>( in.ReadInt32L() ); |
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126 |
break; |
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case NPreviewMsg::ETakePreview: |
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ScreenshotL(); |
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break; |
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case NPreviewMsg::EAckPreviewReady: |
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RemoveScreenshot( in.ReadInt32L() ); |
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132 |
break; |
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} |
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134 |
|
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HGLOG_OUT(); |
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} |
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137 |
|
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138 |
// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::ConstructL |
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// -------------------------------------------------------------------------- |
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141 |
// |
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void CPreviewProviderCRP::ConstructL( MWsGraphicDrawerEnvironment& aEnv, |
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const TGraphicDrawerId& aId, MWsClient& aOwner, const TDesC8& /*aData*/ ) |
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144 |
{ |
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HGLOG_CONTEXT( ConstructL, HGLOG_LOCAL ); |
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HGLOG_IN(); |
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147 |
|
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BaseConstructL( aEnv, aId, aOwner ); |
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aEnv.RegisterEventHandler( this, this, TWservCrEvent::EWindowGroupChanged ); |
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150 |
|
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151 |
HGLOG_OUT(); |
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152 |
} |
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153 |
|
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154 |
// -------------------------------------------------------------------------- |
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155 |
// CPreviewProviderCRP::DoHandleEvent |
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// -------------------------------------------------------------------------- |
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157 |
// |
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158 |
void CPreviewProviderCRP::DoHandleEvent( const TWservCrEvent& aEvent ) |
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159 |
{ |
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HGLOG_CONTEXT( DoHandleEvent, HGLOG_LOCAL ); |
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HGLOG_IN(); |
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162 |
|
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if ( aEvent.Type() == TWservCrEvent::EWindowGroupChanged ) |
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164 |
{ |
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const TInt wgId = aEvent.WindowGroupIdentifier(); |
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166 |
if ( iWgIds.FindInOrder( iPrevId ) >= 0 || |
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( iPrevId == 0 && iPrevReg != 0 ) ) |
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168 |
{ |
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169 |
TRAP_IGNORE( ScreenshotL() ); |
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iPrevReg = 0; |
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171 |
} |
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172 |
iPrevId = wgId; |
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173 |
} |
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174 |
|
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175 |
HGLOG_OUT(); |
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176 |
} |
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177 |
|
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178 |
// -------------------------------------------------------------------------- |
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179 |
// CPreviewProviderCRP::ScaleComplete |
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180 |
// -------------------------------------------------------------------------- |
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181 |
// |
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182 |
void CPreviewProviderCRP::ScaleCompleteL( const CFbsBitmap& aBitmap ) |
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183 |
{ |
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184 |
HGLOG_CONTEXT( ScaleComplete, HGLOG_LOCAL ); |
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185 |
HGLOG_IN(); |
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186 |
|
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187 |
const TInt msg[] = { |
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188 |
NPreviewMsg::EPreviewReady, |
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189 |
iPrevId?iPrevId:iPrevReg, |
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190 |
aBitmap.Handle() |
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191 |
}; |
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192 |
TPckgC<TInt[sizeof(msg) / sizeof(TInt)]> buf(msg); |
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193 |
User::LeaveIfError( SendMessage( buf ) ); |
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194 |
HGLOG3( HGLOG_INFO, "size = %dx%d handle = %d", |
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195 |
aBitmap.SizeInPixels().iWidth, |
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196 |
aBitmap.SizeInPixels().iHeight, |
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197 |
aBitmap.Handle() ); |
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198 |
HGLOG_OUT(); |
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199 |
} |
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200 |
|
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201 |
// -------------------------------------------------------------------------- |
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202 |
// CPreviewProviderCRP::UnregisterComplete |
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203 |
// -------------------------------------------------------------------------- |
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204 |
// |
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205 |
void CPreviewProviderCRP::UnregisterComplete( TInt aWgId ) |
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206 |
{ |
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207 |
HGLOG_CONTEXT( UnregisterComplete, HGLOG_LOCAL ); |
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208 |
HGLOG_IN(); |
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209 |
|
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210 |
const TInt msg[] = { |
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211 |
NPreviewMsg::EUnregisterReady, |
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212 |
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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HGLOG_OUT(); |
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} |
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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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HGLOG_CONTEXT( Register, HGLOG_LOCAL ); |
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HGLOG_IN(); |
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iPrevReg = aWgId; |
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iWgIds.InsertInOrder( aWgId ); |
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HGLOG_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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HGLOG_CONTEXT( Unregister, HGLOG_LOCAL ); |
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HGLOG_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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|
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HGLOG_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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CleanupStack::PushL( screenshot ); |
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ScreenshotL( *screenshot ); |
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ScaleCompleteL( *screenshot ); |
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iScreenshots.InsertL( screenshot, iScreenshots.Count() ); |
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CleanupStack::Pop( screenshot ); |
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CheckOverflow(); |
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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(CFbsBitmap& aBitmap) |
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{ |
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HGLOG_CONTEXT( ScreenShot, HGLOG_LOCAL ); |
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HGLOG_IN(); |
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|
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if( 0 > iScreen || Env().ScreenCount() <= iScreen ) |
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{ |
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//screen offset out of range. skip request |
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User::Leave(KErrArgument); |
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} |
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// Find the screen resolution |
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MWsScreenConfig* screenConfig = |
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Env().Screen( iScreen )->ObjectInterface<MWsScreenConfig>(); |
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|
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const TSize sz = screenConfig->ScreenModeSizeInPixels(); |
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|
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// Get the screen buffer (containing screenshot data) |
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MWsFrontBuffer* screenFront = |
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Env().Screen( iScreen )->ObjectInterface<MWsFrontBuffer>(); |
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|
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// With NGA we do not support downscaling of the screenshots. |
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// So use the size of the screen if no screenshot size has been explicitly |
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// set or if the old method for taking screenshots is not available. |
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if ( iScreenshotSize.iWidth == 0 || |
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iScreenshotSize.iHeight == 0 || |
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!screenFront ) |
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{ |
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iScreenshotSize = sz; |
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} |
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// Use the the same DisplayMode as for the source image |
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// so override the display mode, ignoring any requests. |
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iScreenshotMode = screenConfig->DisplayMode(); |
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|
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HGLOG3( HGLOG_INFO, "iShotSize: %dx%d mode: %d", |
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iScreenshotSize.iWidth, iScreenshotSize.iHeight, iScreenshotMode ); |
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|
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aBitmap.Reset(); |
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User::LeaveIfError( aBitmap.Create( iScreenshotSize, iScreenshotMode ) ); |
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|
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// Check if front buffer is available. |
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// Will always be NULL with NGA. |
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if ( screenFront ) |
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{ |
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HGLOG0( HGLOG_INFO, "non-NGA, using front buffer" ); |
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FrontBufferScreenShot( aBitmap, *screenFront, sz, screenConfig->Stride() ); |
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} |
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#ifdef NGA |
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322 |
else |
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323 |
{ |
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HGLOG0( HGLOG_INFO, "NGA, using CopyScreenToBitmapL" ); |
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MWsScreenDevice* screenDevice = static_cast<MWsScreenDevice*>( |
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Env().Screen( iScreen )->ResolveObjectInterface( |
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MWsScreenDevice::EWsObjectInterfaceId ) ); |
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User::LeaveIfNull( screenDevice ); |
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screenDevice->CopyScreenToBitmapL( &aBitmap, iScreenshotSize ); |
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} |
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#endif |
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HGLOG_OUT(); |
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} |
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334 |
|
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::RemoveShot |
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// -------------------------------------------------------------------------- |
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// |
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void CPreviewProviderCRP::RemoveScreenshot( TInt aBitmapHandle ) |
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{ |
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for( int iter(0); iter < iScreenshots.Count(); ++iter ) |
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342 |
{ |
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if( iScreenshots[iter]->Handle() == aBitmapHandle ) |
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344 |
{ |
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delete iScreenshots[iter]; |
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iScreenshots.Remove(iter); |
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break; |
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} |
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} |
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} |
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351 |
|
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// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::CheckOverflow |
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// -------------------------------------------------------------------------- |
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355 |
// |
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void CPreviewProviderCRP::CheckOverflow() |
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{ |
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TInt overflow( iScreenshots.Count() - KMaxShots); |
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while( 0 < overflow-- ) |
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360 |
{ |
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delete iScreenshots[0]; |
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iScreenshots.Remove(0); |
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} |
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} |
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365 |
|
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366 |
// -------------------------------------------------------------------------- |
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// CPreviewProviderCRP::FrontBufferScreenShot |
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// -------------------------------------------------------------------------- |
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369 |
// |
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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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HGLOG_CONTEXT( CPreviewProviderCRP::FrontBufferScreenShot, HGLOG_LOCAL ); |
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HGLOG_IN(); |
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377 |
|
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const TUint8* src = static_cast<const TUint8*> ( aFront.GetBits() ); |
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HGLOG1( HGLOG_INFO, "src address = [%d]", src ); |
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380 |
|
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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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389 |
// 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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392 |
|
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aBitmap.LockHeap(); |
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394 |
|
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TUint8* dst = ( TUint8* ) aBitmap.DataAddress(); |
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396 |
|
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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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400 |
|
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for ( TInt y = minHeight; y > 0; y-- ) |
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402 |
{ |
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for ( TInt x = minWidth; x > 0; x-- ) |
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404 |
{ |
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405 |
Mem::Copy( dst, src, minStep ); |
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dst += stepdst; |
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src += scaleX*stepdst; |
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408 |
} |
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409 |
src += srcstride - scaleX * stepdst * minWidth; |
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src += ( scaleY - 1 ) * srcstride; |
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411 |
} |
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412 |
|
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413 |
aBitmap.UnlockHeap(); |
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414 |
HGLOG_OUT(); |
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415 |
} |
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416 |
|
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417 |
// -------------------------------------------------------------------------- |
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418 |
// KImplementationTable |
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419 |
// -------------------------------------------------------------------------- |
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420 |
// |
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LOCAL_C const TImplementationProxy KImplementationTable[] = |
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422 |
{ |
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423 |
IMPLEMENTATION_PROXY_ENTRY(KImpId, CPreviewProviderCRP::CreateL) |
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}; |
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// -------------------------------------------------------------------------- |
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// ImplementationGroupProxy |
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// -------------------------------------------------------------------------- |
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// |
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EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount) |
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{ |
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aTableCount = (sizeof(KImplementationTable) / sizeof(TImplementationProxy)); |
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return KImplementationTable; |
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} |
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// End of file |