author | hgs |
Thu, 14 Oct 2010 18:35:08 +0300 | |
changeset 60 | 5dafecb0892a |
parent 31 | 1b6909418757 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2008-2009 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: Definition of CHuiCanvasWsBitGc. |
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* |
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*/ |
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|
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|
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#include "huicanvaswsbitgc.h" |
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#include "uiacceltk/HuiCanvasVisual.h" |
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#include <graphics/wsgraphicscontext.h> |
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#include <e32cmn.h> |
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#include <AknLayoutFont.h> |
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#include <gdi.h> |
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CHuiCanvasWsBitGc* CHuiCanvasWsBitGc::NewL() |
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{ |
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CHuiCanvasWsBitGc* self = new ( ELeave ) CHuiCanvasWsBitGc; |
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CleanupStack::PushL( self ); |
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self->ConstructL(); |
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CleanupStack::Pop(); |
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return self; |
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} |
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CHuiCanvasWsBitGc::CHuiCanvasWsBitGc() |
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{ |
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} |
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void CHuiCanvasWsBitGc::ConstructL() |
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{ |
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CHuiCanvasWsSwGc::ConstructL(); |
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} |
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CHuiCanvasWsBitGc::~CHuiCanvasWsBitGc() |
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{ |
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} |
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void CHuiCanvasWsBitGc::BeginActionL(TInt aAction, TRect /*aDisplayRect*/, const CHuiCanvasVisual& aUser, TBool aIsCachePrepared, const TRegion& aUpdateRegion) |
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{ |
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iAction = aAction; |
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iVisual = &aUser; |
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if (!iVisual) |
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{ |
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return; |
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} |
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// Update area is in screen coordinates so we must convert it |
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iDefaultClipRegion.Clear(); |
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for (TInt i=0; i < aUpdateRegion.Count(); i++) |
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{ |
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iDefaultClipRegion.AddRect(AdjustCoordinates(aUpdateRegion[i])); |
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} |
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TSize size = RoundedDisplayRect().Size(); |
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// We create buffer only in drawing phase to reduce memory consumption. |
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TBool recreateBackbuffer = |
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( iAction == EDrawBuffer ) && |
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( !iBitGc || ( iBitBitmap && iBitBitmap->SizeInPixels() != size ) ); |
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// If this is first draw or size has changed, re-create backbuffer |
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if (recreateBackbuffer) |
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{ |
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iBitmapInitialized = EFalse; |
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if (!iBitBitmap) |
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{ |
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iBitBitmap = new (ELeave) CFbsBitmap; |
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iBitBitmap->Create(size, SelectDisplayMode()); |
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} |
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else |
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{ |
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iBitBitmap->Resize(size); |
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} |
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if (!iBitDevice) |
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{ |
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iBitDevice = CFbsBitmapDevice::NewL(iBitBitmap); |
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} |
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else |
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{ |
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iBitDevice->Resize(size); |
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} |
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delete iBitGc; |
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iBitGc = NULL; |
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User::LeaveIfError(iBitDevice->CreateContext(iBitGc)); |
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107 |
TRgb clearColor = KRgbWhite; |
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108 |
clearColor.SetAlpha(0x0); |
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|
109 |
|
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110 |
iBitGc->SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha); |
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111 |
iBitGc->SetPenColor(clearColor); |
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112 |
iBitGc->SetBrushColor(clearColor); |
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113 |
iBitGc->SetBrushStyle(CGraphicsContext::ESolidBrush); |
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114 |
iBitGc->Clear(); |
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115 |
iBitGc->Reset(); |
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116 |
|
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117 |
iIsReallyDirty = EFalse; |
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118 |
} |
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119 |
|
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120 |
if (iBitGc) |
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121 |
{ |
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iBitGc->Reset(); |
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123 |
} |
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124 |
|
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iBitmapPrepared = aIsCachePrepared && iBitmapInitialized; |
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126 |
} |
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127 |
|
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128 |
// Note that for perfomance reasons we keep iBitBitmap alive in this method |
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129 |
void CHuiCanvasWsBitGc::EndActionL(const TRegion& aUpdateRegion, TBool aUpdateDisplay) |
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130 |
{ |
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131 |
if (!iBitBitmap || !iVisual) |
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132 |
{ |
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133 |
return; |
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134 |
} |
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135 |
|
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136 |
// Update internal state - drawing finished |
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137 |
if ( iAction == EDrawBuffer ) |
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138 |
{ |
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139 |
iBitmapInitialized = ETrue; |
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140 |
iBitmapPrepared = ETrue; |
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141 |
} |
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142 |
|
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143 |
// If capturing is used, then copy content from bitmap. |
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144 |
if (iCapturingBitGc && aUpdateDisplay && iIsReallyDirty && iAction == EDrawBuffer) |
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145 |
{ |
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146 |
iCapturingBitGc->Reset(); |
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147 |
|
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148 |
// blend only transparent windows |
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149 |
if (iVisual->Flags() & EHuiVisualFlagOpaqueHint) |
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150 |
{ |
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151 |
iCapturingBitGc->SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha); |
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152 |
} |
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153 |
else |
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154 |
{ |
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155 |
iCapturingBitGc->SetDrawMode(CGraphicsContext::EDrawModePEN); |
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|
156 |
} |
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|
157 |
|
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158 |
iCapturingBitGc->SetClippingRegion(aUpdateRegion); |
31 | 159 |
iCapturingBitGc->SetClippingRect(CHuiEnv::Static()->Display(0).CurrentDirtyRect()); |
0
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|
160 |
|
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|
161 |
TSize visualSize = iVisual->DisplayRect().Size().Round(); |
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162 |
if (iCapturingBitBitmap->SizeInPixels() != visualSize) |
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|
163 |
{ |
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164 |
iCapturingBitGc->BitBlt(iVisual->DisplayRect().iTl.Round(), iBitBitmap); |
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|
165 |
} |
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|
166 |
else |
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|
167 |
{ |
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|
168 |
// Old capturing functionality, althoug not really used we support that as well |
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|
169 |
iCapturingBitGc->BitBlt(TPoint(0,0), iBitBitmap); |
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|
170 |
} |
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|
171 |
|
31 | 172 |
iCapturingBitGc->CancelClippingRect(); |
0
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|
173 |
iCapturingBitGc->CancelClippingRegion(); |
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|
174 |
} |
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|
175 |
|
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|
176 |
// Content is not drawn anywhere (except to to capturing bitgc) |
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|
177 |
} |
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|
178 |
|
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|
179 |
|
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|
180 |
THuiCanvasWsGcType CHuiCanvasWsBitGc::Type() const |
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|
181 |
{ |
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|
182 |
return EHuiCanvasWsBit; |
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|
183 |
} |
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|
184 |
|
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|
185 |
|
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|
186 |
void CHuiCanvasWsBitGc::ClearCache() |
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|
187 |
{ |
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Revision: 201003
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|
188 |
// ClearCache is called when we can release, |
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|
189 |
// e.g. when window is hidden by another opaque window. |
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Revision: 201003
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|
190 |
// So now we must release bitmaps in order to free |
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Revision: 201003
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|
191 |
// memory. |
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Revision: 201003
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|
192 |
iBitmapPrepared = EFalse; |
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|
193 |
iBitmapInitialized = EFalse; |
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|
194 |
|
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Revision: 201003
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|
195 |
delete iBitGc; |
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|
196 |
iBitGc = NULL; |
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|
197 |
|
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Revision: 201003
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|
198 |
delete iBitDevice; |
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Revision: 201003
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|
199 |
iBitDevice = NULL; |
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|
200 |
|
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|
201 |
delete iBitBitmap; |
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Revision: 201003
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|
202 |
iBitBitmap = NULL; |
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|
203 |
} |
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|
204 |
|
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|
205 |
|
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|
206 |
TBool CHuiCanvasWsBitGc::IsRenderBufferEnabled() const |
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|
207 |
{ |
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|
208 |
return ETrue; |
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|
209 |
} |
14
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Revision: 201011
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0
diff
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|
210 |
|
60 | 211 |
void CHuiCanvasWsBitGc::ClearCapturingBufferArea(const TRect& /*aRect*/) |
14
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Revision: 201011
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0
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|
212 |
{ |
31 | 213 |
|
14
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|
214 |
} |