ITransform.h

//========================================================================================
// 
// $File$
// 
// Owner: Zak_Williamson
// 
// $Author$
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// $DateTime$
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// 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.
// 
// 
// Defines the interface for a 3x3 transform.
// 
// Purpose of Interface;
// A persistant interface containing transformation data for a page item
// 
//========================================================================================

#ifndef __ITRANSFORM__
#define __ITRANSFORM__

#include "IPMUnknown.h"
#include "GenericID.h"
#include "TransformTypes.h"
#include "PMReal.h"

class PMRect;
class PMPoint;
class PMMatrix;
class PMPolygon4;
class IGraphicsPort;

class ITransform : public IPMUnknown
{
public:
 enum { kDefaultIID = IID_ITRANSFORM };

 virtual PMReal GetItemScaleX() const = 0;

 virtual PMReal GetItemScaleY() const = 0;

 virtual PMReal GetItemSkewAngle() const = 0;

 virtual PMReal GetItemRotationAngle() const = 0;

 virtual void ScaleItemBy( PMReal xScale, PMReal yScale, const PMPoint& center) = 0;

 virtual void ScaleItemTo( PMReal xScale, PMReal yScale, const PMPoint& center) = 0;

 virtual void SkewItemTo( PMReal xSkewAngle, const PMPoint& center) = 0;

 virtual void SkewItemBy( PMReal xSkewAngle, const PMPoint& center) = 0;

 virtual void RotateItemBy( PMReal angle, const PMPoint& center) = 0;

 virtual void RotateItemTo( PMReal angle, const PMPoint& center) = 0;

 virtual void TranslateItemBy( const PMPoint& delta) = 0;

 virtual void TranslateItemTo( const PMPoint& location) = 0;



 virtual void SetInnerToParentMatrix( const PMMatrix& matrix) = 0; //t_SetMatrix

 virtual const PMMatrix& GetInnerToParentMatrix() const = 0;

 virtual const PMMatrix& GetParentToInnerMatrix() const = 0; //t_CurrentInverseMatrix




 enum MatrixType { kDynamicMatrix, kStaticMatrix};
 virtual ITransform::MatrixType GetInnerToRootMatrix( PMMatrix *pMatrix, const ITransform *pRoot = nil ) const = 0;

 virtual bool16 IsTransformParentDependent() const = 0;

 virtual IPMUnknown* QueryTransformParent() = 0;

 virtual void ConcatItemTransform(IGraphicsPort *gPort) = 0;

};

#endif // __ITRANSFORM__