author | jakl.martin@cell-telecom.com |
Mon, 06 Dec 2010 18:07:30 +0100 | |
branch | NewGraphicsArchitecture |
changeset 218 | 99b3451c560e |
parent 0 | 5d03bc08d59c |
permissions | -rw-r--r-- |
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// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// CWsRedrawMsgWindow and associated classes definitions |
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// |
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// |
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#ifndef __REDRAWMSGWINDOW_H__ |
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#define __REDRAWMSGWINDOW_H__ |
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#include "wnredraw.h" |
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#include "redrawmsgwindow.h" |
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class CWsFbsFont; |
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class CWsDrawableSource; |
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|
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// This class is intended to be used in cases, where it's needed to track how many times a CFbsBitmap |
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// is referenced, e.g. in redraws, where already drawn bitmaps need to be re-drawn in different position. |
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class CFbsBitmapRef : public CFbsBitmap |
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{ |
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public: |
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CFbsBitmapRef(); |
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~CFbsBitmapRef(); |
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inline TInt RefCount() const; |
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inline void IncRefCount(); |
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inline void DecRefCount(); |
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private: |
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TInt iRefCount; |
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}; |
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|
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class CWsRedrawMsgWindow : public CWsWindowRedraw |
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{ |
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class CRedrawSegment; |
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enum TFlags |
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{ |
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EBackgroundClear=0x0001, //Clear background when starting redraw |
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EBeginEndRedraw=0x0002, //This window is currently in the middle of a redraw, that is between client calls to BeginRedraw and EndRedraw. |
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EPendingScheduledDraw=0x0004, //We have scheduled a redraw but it hasn't happened yet |
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EStoringEntireWindow=0x0008, //If store commands for the entire window or only the viewport |
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ECurrentRedrawFailedStorage=0x0010, //The current redraw failed to store a command (is reset for each redraw). Is used to make sure we only request a redraw from the client once per failing redraw |
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EPreviousRedrawFailedStorage=0x0020, //The previous redraw failed to store a command. Is used to avoid infinite loops -- if two consecutive redraws fail (i.e. current and previous) then there is no use requesting yet another redraw from the client |
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}; |
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enum TScope |
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{ |
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EStoreEntireWindow, //We try to obtain draw commands for the entire window |
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EStoreViewport //We only try to obtain commands for the on screen viewport |
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}; |
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public: |
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enum TRedrawSegmentType |
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{ |
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ESegmentTypePendingRedraw, // A redraw segment still being received |
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ESegmentTypeRedraw // A segment received between a begin and end redraw |
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}; |
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public: |
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static void StaticInitL(); |
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CWsRedrawMsgWindow(CWsWindow *aWin); |
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~CWsRedrawMsgWindow(); |
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void AddFbsBitmapsL(TInt aHandle, TInt aMaskHandle); |
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void AddFbsBitmapRefL(TInt aHandle); |
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void AddWsBitmapsL(TInt aHandle, TInt aMaskHandle); |
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void AddWsFontL(TInt aHandle); |
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void AddWsDrawableSourceL(TInt aHandle); |
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void SetScope(TScope aStore); |
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void CleanupBitmapRefArray(const RArray<TInt>& aHandleArray); |
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public: //from CWsWindowRedraw |
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void ConstructL(); |
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TBool CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd); |
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void ClipInvalidRegion(const TRect &aRect); |
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TBool NeedsRedraw() const; |
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TBool GetRedrawRect(TRect &aRect) const; |
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const TRegion& BaseDrawRegion() const; |
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const TRegion& InvalidArea() const; |
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void ClearRedrawStore(TBool aClearPendingRedraw=EFalse); |
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TBool DrawCommand(CWsGc* aGc,const TAny *aCmdData); |
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void GcAttributeChange(CWsGc* aGc,const TAny *aCmdData); |
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void GcDeactivate(CWsGc* aGc); |
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void ClientExposing(); |
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void DrawWindow(); |
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void PrepareForResizeL(const TSize &aSize, TSize &aOldSize); |
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void Moved(); |
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TBool Contains(const TArray<TGraphicDrawerId>& aDrawers,const TRegion& aRegion) const; |
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TBool ReleaseMemory(MWsMemoryRelease::TMemoryReleaseLevel aLevel); |
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void VisibleRegionChange(); |
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TBool ReadyToDraw() const; |
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TInt SizeInBytes() const; |
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TBool RedrawingInProgress() const; |
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void WindowClosing(); |
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TBool IsRedrawStoreEmpty() const; |
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TBool IsBackgroundClearEnabled() const; |
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CFbsBitmap* BitmapFromHandle(TInt aHandle) const; |
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102 |
|
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private: //from CWsWindowRedraw |
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void Invalidate(const TRect * aRect = 0); |
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TRgb BackColor() const; |
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void Scroll(const TRect &aClipRect, const TPoint &aOffset,const TRect &aRect); |
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107 |
|
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108 |
private: |
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void RemoveFromRedrawQueueIfEmpty(); |
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const TRegion * ReadRegion(const TInt aRegionNum); |
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void BeginRedraw(const TRect* aRect); |
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void DoBeginRedrawL(const TRect* aRect); |
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void SubtractRectFromSegmentArray(const TRect& aRect); |
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void EndRedraw(); |
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void ValidateRect(const TRect *aRect); |
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void StoreDrawCommandL(CWsGc* aGc,const TAny *aCmdData); |
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void AppendCommandL(const TAny* aCmdData, const TUint16 aOpcodeFlags = 0); |
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void StoreAllGcAttributesL(CWsGc* aGc); |
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void DrawCommandsL(); |
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void DiscardStoredCommands(); |
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TBool DiscardSegmentsOutsideViewport(); |
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inline TBool NoBuffer() const; |
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void DiscardStoredCommandsIfError(TInt aError); |
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inline TBool IsFbsBitmapOperation(TInt aOpCode) const; |
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inline TBool IsWsBitmapOperation(TInt aOpCode) const; |
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inline TBool IsRemoteReadRequired(TInt aOpCode) const; |
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inline TBool IsWsFontOperation(TInt aOpCode) const; |
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inline TBool IsDrawWsGraphicOperation(TInt aOpCode) const; |
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inline TBool IsWsDrawableSourceOperation(TInt aOpCode) const; |
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void ReplaceAndAppendCommandL(TInt aOpcode,const TAny* aCmdData); |
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131 |
// CRedrawSegment related methods |
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inline TInt CurrentCommandBufferWritePos() const; |
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inline CBufSeg* CurrentDrawCommandBuffer() const; |
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void ExpandCommandBufferL(TInt aLength); |
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void CommandBufferWrite(const TDesC8& aDes, TInt aLength); |
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void CommandBufferWrite(const TAny* aPtr,TInt aLength); |
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137 |
void CreateNewSegmentL(const TRect& aRect, TRedrawSegmentType aRegionType); |
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inline TBool InRedraw() const; |
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139 |
void PromotePendingSegment(); |
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140 |
void Lock(); |
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141 |
void Unlock(); |
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142 |
void ReleaseRedrawSegments(); |
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143 |
private: |
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static TBool iAtomic; |
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RPointerArray<CFbsBitmapRef> iFbsBitmapRefArray; |
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146 |
private: |
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class CRedrawSegment : public CBase |
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148 |
{ |
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149 |
public: |
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static CRedrawSegment* NewLC(const TRect& aRect, TRedrawSegmentType aNewRegionType, CWsRedrawMsgWindow& aRedraw); |
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~CRedrawSegment(); |
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void AddWsBitmapL(DWsBitmap* bitmap); |
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void AddWsDrawableSourceL(CWsDrawableSource* aDrawableSource); |
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void AddDrawerL(TGraphicDrawerId aDrawerId); |
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TBool ContainsDrawers(const TArray<TGraphicDrawerId>& aDrawers,const TRegion& aRegion) const; |
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TInt SizeInBytes() const; |
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TBool AppendNonDuplicateBitmapHandleL(TInt aHandle); |
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158 |
private: |
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159 |
CRedrawSegment(CWsRedrawMsgWindow& aRedraw); |
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160 |
void ConstructL(const TRect& aRect, TRedrawSegmentType aNewRegionType); |
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161 |
void ReleaseFontsBitmapsDrawableSources(); |
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162 |
public: |
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163 |
TRedrawSegmentType iRedrawSegmentType; |
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CBufSeg* iDrawCommands; |
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165 |
TInt iCurrentCommandBufferWritePos; |
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166 |
RWsRegion iRegion; |
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RPointerArray<DWsBitmap> iWsBitmapArray; |
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168 |
RPointerArray<CWsFbsFont> iWsFontArray; |
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169 |
RArray<TGraphicDrawerId> iDrawerArray; |
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RPointerArray<CWsDrawableSource> iWsDrawableSourceArray; |
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171 |
TTime iCreationTime; |
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172 |
private: |
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173 |
CWsRedrawMsgWindow& iRedraw; |
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RArray<TInt> iBitmapHandleArray; |
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175 |
}; |
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RWsRegion iInvalid; // Region we haven't been sent a begin redraw for. |
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TRect iRedrawRect; |
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TRgb iBackColor; |
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TInt iFlags; |
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// Regions currently in use for drawing this window: |
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RPointerArray<CRedrawSegment> iRedrawSegments; |
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// The segment we are currently storing to. This is allowed to be null! |
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CRedrawSegment * iCurrentSegment; |
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// The last GC we drew with so we can detect changes |
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CWsGc* iLastDrawGc; |
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// During a scheduled draw, this is the area being drawn to (see comments on ReadRegion) |
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RWsRegion iLocalRedrawRegion; |
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TInt iMemoryLock; |
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189 |
TBool iOSBStatus; |
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190 |
}; |
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191 |
|
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inline TBool CWsRedrawMsgWindow::IsRemoteReadRequired(TInt aOpCode) const |
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193 |
{ |
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return (aOpCode==EWsGcOpDrawTextPtr || aOpCode==EWsGcOpDrawTextVerticalPtr || |
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aOpCode==EWsGcOpDrawBoxTextPtr || aOpCode==EWsGcOpDrawBoxTextVerticalPtr); |
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196 |
} |
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197 |
|
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inline TInt CWsRedrawMsgWindow::CurrentCommandBufferWritePos() const |
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{ |
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WS_ASSERT_DEBUG(iCurrentSegment, EWsPanicDrawCommandsInvalidState); |
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return iCurrentSegment->iCurrentCommandBufferWritePos; |
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} |
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inline CBufSeg* CWsRedrawMsgWindow::CurrentDrawCommandBuffer() const |
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{ |
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WS_ASSERT_DEBUG(iCurrentSegment, EWsPanicDrawCommandsInvalidState); |
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return iCurrentSegment->iDrawCommands; |
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} |
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inline TBool CWsRedrawMsgWindow::InRedraw() const |
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{ |
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return iFlags&EBeginEndRedraw; |
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} |
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inline TInt CFbsBitmapRef::RefCount() const |
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{ |
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return iRefCount; |
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} |
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inline void CFbsBitmapRef::IncRefCount() |
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{ |
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++iRefCount; |
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} |
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inline void CFbsBitmapRef::DecRefCount() |
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{ |
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WS_ASSERT_DEBUG(iRefCount>0,EWsPanicCounterValue); |
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--iRefCount; |
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} |
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#endif |