ITextRun.h

//========================================================================================
// 
// $File$
// 
// Owner: Kevin Van Wiel
// 
// $Author$
// 
// $DateTime$
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// $Revision$
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// $Change$
// 
// Copyright 1997-2010 Adobe Systems Incorporated. All rights reserved.
// 
// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance 
// with the terms of the Adobe license agreement accompanying it. If you have received
// this file from a source other than Adobe, then your use, modification, or 
// distribution of it requires the prior written permission of Adobe.
// 
//========================================================================================

#ifndef __ITextRun__
#define __ITextRun__

#include "IPMUnknown.h"

#include "WritingModeUIID2.h"
#include "PMRect.h"
#include "IInterfaceColors.h"
#include "LineDescription.h"

class IGraphicsPort;
class ITextModel;
class WideString;

class ITextRun : public IPMUnknown
{
public:
 virtual void InitializeForDraw() = 0;
 
 virtual bool16 IsVisible(const RunDescription &description) = 0;
 
 virtual bool16 DrawsText() = 0;
 
 virtual bool16 GetRunThreadData(const RunDescription &description, ITextModel *primaryTextModel,
 UID &threadDictUID, uint32 &threadDictKey, 
 TextIndex &threadStart, int32 &threadSpan) = 0;

 virtual PMReal DrawRun(IGraphicsPort *gPort, int32 at, const RunDescription &description, PMRect &runRect, 
 const PMPoint &textDrawPt, int32 runDrawLength, int32 runIndex,
 bool16 showInvisibles, const PMRect &highlightRect) = 0;

 virtual void DrawHilite(int32 at, IGraphicsPort *gPort, const PMPoint &scrollCompensationValue) = 0;
 
 virtual void DrawHilite(const TextIndex textModelStart, const TextIndex textModelEnd) = 0;

 virtual void DrawRunOverlap(IGraphicsPort *gPort, int32 at, const RunDescription &description, PMRect &runRect,
 int32 runIndex) = 0;
};

#endif // __ITextRun__