1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/graphics/windowing/windowserver/nonnga/SERVER/redrawmsgwindow.h Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,198 @@
1.4 +// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +// CWsRedrawMsgWindow and associated classes definitions
1.18 +//
1.19 +//
1.20 +
1.21 +#ifndef __REDRAWMSGWINDOW_H__
1.22 +#define __REDRAWMSGWINDOW_H__
1.23 +
1.24 +#include "wnredraw.h"
1.25 +#include "redrawmsgwindow.h"
1.26 +
1.27 +class CWsFbsFont;
1.28 +
1.29 +class CWsRedrawMsgWindow : public CWsWindowRedraw
1.30 + {
1.31 + class CRedrawSegment;
1.32 + enum TFlags
1.33 + {
1.34 + EBackgroundClear=0x0001, //Clear background when starting redraw
1.35 + ENoRepeatRedraw=0x0004, //Redraw is a response to an error, and should not repeat on another error
1.36 + EBeginEndRedraw=0x0080, //This window is currently in the middle of a redraw, that is between client calls to BeginRedraw and EndRedraw.
1.37 + EPendingScheduledDraw=0x0200, //We have scheduled a redraw but it hasn't happened yet
1.38 + EStoringEntireWindow=0x0400, //If store commands for the entire window or only the viewport
1.39 + };
1.40 + enum TScope
1.41 + {
1.42 + EStoreEntireWindow, //We try to obtain draw commands for the entire window
1.43 + EStoreViewport //We only try to obtain commands for the on screen viewport
1.44 + };
1.45 + enum TAtomicityType
1.46 + {
1.47 + ENoAtomicity,
1.48 + ESegment,
1.49 + EWindow,
1.50 + };
1.51 +public:
1.52 + enum TRedrawSegmentType
1.53 + {
1.54 + ESegmentTypePendingRedraw, // A redraw segment still being received
1.55 + ESegmentTypeRedraw, // A segment received between a begin and end redraw
1.56 + ESegmentTypeNonRedraw, // A segment storing commands received outside of begin and end redraw
1.57 + };
1.58 +public:
1.59 + static void StaticInitL();
1.60 + CWsRedrawMsgWindow(CWsWindow *aWin);
1.61 + ~CWsRedrawMsgWindow();
1.62 + void AddFbsBitmapsL(TInt aHandle, TInt aMaskHandle);
1.63 + void AddWsBitmapsL(TInt aHandle, TInt aMaskHandle);
1.64 + void AddWsFontL(TInt aHandle);
1.65 + void SetScope(TScope aStore);
1.66 +
1.67 +public: //from CWsWindowRedraw
1.68 + void ConstructL();
1.69 + TBool CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd);
1.70 + void ClipInvalidRegion(const TRect &aRect);
1.71 + TBool NeedsRedraw() const;
1.72 + TBool GetRedrawRect(TRect &aRect) const;
1.73 + void ClearRedrawStore(TBool aClearPendingRedraw=EFalse);
1.74 + TBool DrawCommand(CWsGc* aGc,const TAny *aCmdData);
1.75 + void GcAttributeChange(CWsGc* aGc,const TAny *aCmdData);
1.76 + void GcDeactivate(CWsGc* aGc);
1.77 + void ClientExposing();
1.78 + void DrawWindow();
1.79 + void PrepareForResizeL(const TSize &aSize, TSize &aOldSize);
1.80 + void Moved();
1.81 + TBool Contains(const TArray<TGraphicDrawerId>& aDrawers,const TRegion& aRegion) const;
1.82 + TBool ReleaseMemory(MWsMemoryRelease::TMemoryReleaseLevel aLevel);
1.83 + void VisibleRegionChange();
1.84 + TBool ReadyToDraw() const;
1.85 + TInt SizeInBytes() const;
1.86 + void WindowClosing();
1.87 +
1.88 +private: //from CWsWindowRedraw
1.89 + void Invalidate(const TRect * aRect = 0);
1.90 + TRgb BackColor() const;
1.91 + void Scroll(const TRect &aClipRect, const TPoint &aOffset,const TRect &aRect);
1.92 +
1.93 +private:
1.94 + void RemoveFromRedrawQueueIfEmpty();
1.95 + void HandleNonRedrawCommand(TWsGcOpcodes aOpcode);
1.96 + const TRegion * ReadRegion(const TInt aRegionNum);
1.97 + void BeginRedraw(const TRect* aRect);
1.98 + void DoBeginRedrawL(const TRect* aRect);
1.99 + TInt SubtractRectFromSegmentArray(const TRect& aRect);
1.100 + void EndRedraw();
1.101 + void ValidateRect(const TRect *aRect);
1.102 + void StoreDrawCommandL(CWsGc* aGc,const TAny *aCmdData);
1.103 + void AppendCommandL(const TAny* aCmdData, const TUint16 aOpcodeFlags = 0);
1.104 + void StoreAllGcAttributesL(CWsGc* aGc);
1.105 + void DrawCommandsL();
1.106 + void DiscardStoredCommands();
1.107 + TBool DiscardSegmentsOutsideViewport();
1.108 + inline TBool NoBuffer() const;
1.109 + void DiscardStoredCommandsIfError(TInt aError);
1.110 + inline TBool IsFbsBitmapOperation(TInt aOpCode) const;
1.111 + inline TBool IsWsBitmapOperation(TInt aOpCode) const;
1.112 + inline TBool IsRemoteReadRequired(TInt aOpCode) const;
1.113 + inline TBool IsWsFontOperation(TInt aOpCode) const;
1.114 + inline TBool IsDrawWsGraphicOperation(TInt aOpCode) const;
1.115 + void ReplaceAndAppendCommandL(TInt aOpcode,const TAny* aCmdData);
1.116 + // CRedrawSegment related methods
1.117 + inline TInt CurrentCommandBufferWritePos() const;
1.118 + inline CBufSeg* CurrentDrawCommandBuffer() const;
1.119 + void ExpandCommandBufferL(TInt aLength);
1.120 + void CommandBufferWrite(const TDesC8& aDes, TInt aLength);
1.121 + void CommandBufferWrite(const TAny* aPtr,TInt aLength);
1.122 + void CreateNewSegmentL(const TRect& aRect, TRedrawSegmentType aRegionType);
1.123 + inline TBool InRedraw() const;
1.124 + void AgeNonRedrawSegments();
1.125 + void PromoteAndUpdateAllPendingSegments();
1.126 + void PromoteLastPendingSegment();
1.127 + void Lock();
1.128 + void Unlock();
1.129 + void ScheduleUpdateOfSegment(CRedrawSegment* aSegment);
1.130 + void ReleaseRedrawSegments();
1.131 +
1.132 +private:
1.133 + static TInt iNonRedrawAgeLimit;
1.134 + static TAtomicityType iAtomicity;
1.135 +private:
1.136 + class CRedrawSegment : public CBase
1.137 + {
1.138 + public:
1.139 + static CRedrawSegment* NewLC(const TRect& aRect, TRedrawSegmentType aNewRegionType);
1.140 + ~CRedrawSegment();
1.141 + void AddFbsBitmapL(TInt aHandle, CWsRedrawMsgWindow* aWindow);
1.142 + void AddWsBitmapL(DWsBitmap* bitmap);
1.143 + void ReleaseFontsAndBitmaps();
1.144 + void AddDrawerL(TGraphicDrawerId aDrawerId);
1.145 + TBool ContainsDrawers(const TArray<TGraphicDrawerId>& aDrawers,const TRegion& aRegion) const;
1.146 + TInt SizeInBytes() const;
1.147 + private:
1.148 + CRedrawSegment();
1.149 + void ConstructL(const TRect& aRect, TRedrawSegmentType aNewRegionType);
1.150 + public:
1.151 + TRedrawSegmentType iRedrawSegmentType;
1.152 + CBufSeg* iDrawCommands;
1.153 + TInt iCurrentCommandBufferWritePos;
1.154 + RWsRegion iRegion;
1.155 + RPointerArray<CFbsBitmap> iFbsBitmapArray;
1.156 + RPointerArray<DWsBitmap> iWsBitmapArray;
1.157 + RPointerArray<CWsFbsFont> iWsFontArray;
1.158 + RArray<TGraphicDrawerId> iDrawerArray;
1.159 + TTime iCreationTime;
1.160 + };
1.161 + RWsRegion iInvalid; // Region we haven't been sent a begin redraw for.
1.162 + TRect iRedrawRect;
1.163 + TRgb iBackColor;
1.164 + TInt iFlags;
1.165 + // Regions currently in use for drawing this window:
1.166 + RPointerArray<CRedrawSegment> iRedrawSegments;
1.167 + // The segment we are currently storing to. This is allowed to be null!
1.168 + CRedrawSegment * iCurrentSegment;
1.169 + // The last GC we drew with so we can detect changes
1.170 + CWsGc* iLastDrawGc;
1.171 + // During a scheduled draw, this is the area being drawn to (see comments on ReadRegion)
1.172 + RWsRegion iLocalRedrawRegion;
1.173 + TInt iMemoryLock;
1.174 + TBool iOSBStatus;
1.175 + TInt iCount;
1.176 + };
1.177 +
1.178 +inline TBool CWsRedrawMsgWindow::IsRemoteReadRequired(TInt aOpCode) const
1.179 + {
1.180 + return (aOpCode==EWsGcOpDrawTextPtr || aOpCode==EWsGcOpDrawTextVerticalPtr ||
1.181 + aOpCode==EWsGcOpDrawBoxTextPtr || aOpCode==EWsGcOpDrawBoxTextVerticalPtr);
1.182 + }
1.183 +
1.184 +inline TInt CWsRedrawMsgWindow::CurrentCommandBufferWritePos() const
1.185 + {
1.186 + WS_ASSERT_DEBUG(iCurrentSegment, EWsPanicDrawCommandsInvalidState);
1.187 + return iCurrentSegment->iCurrentCommandBufferWritePos;
1.188 + }
1.189 +
1.190 +inline CBufSeg* CWsRedrawMsgWindow::CurrentDrawCommandBuffer() const
1.191 + {
1.192 + WS_ASSERT_DEBUG(iCurrentSegment, EWsPanicDrawCommandsInvalidState);
1.193 + return iCurrentSegment->iDrawCommands;
1.194 + }
1.195 +
1.196 +inline TBool CWsRedrawMsgWindow::InRedraw() const
1.197 + {
1.198 + return iFlags&EBeginEndRedraw;
1.199 + }
1.200 +
1.201 +#endif