root / trunk / libraries / libjni-mrsid / include / filters / lti_cropFilter.h @ 13136
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/* $Id: lti_cropFilter.h 3539 2006-01-09 12:23:20Z nacho $ */
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/* //////////////////////////////////////////////////////////////////////////
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// //
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// This code is Copyright (c) 2004 LizardTech, Inc, 1008 Western Avenue, //
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// Suite 200, Seattle, WA 98104. Unauthorized use or distribution //
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// prohibited. Access to and use of this code is permitted only under //
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// license from LizardTech, Inc. Portions of the code are protected by //
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// US and foreign patents and other filings. All Rights Reserved. //
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// //
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////////////////////////////////////////////////////////////////////////// */
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/* PUBLIC */
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#ifndef LTI_CROPFILTER_H
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#define LTI_CROPFILTER_H
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// lt_lib_mrsid_core
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#include "lti_imageFilter.h" |
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LT_BEGIN_NAMESPACE(LizardTech) |
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#if defined(LT_COMPILER_MS)
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#pragma warning(push,4) |
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#endif
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/**
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* crops the image stage to a smaller width and height
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*
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* This class crops the image stage to a smaller width and height.
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*/
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class LTICropFilter : public LTIImageFilter |
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{ |
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public:
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/**
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* constructor
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*
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* Creates an image stage which corresponds to a cropped subsection of the
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* input image, according to the given offset, width, and height.
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*
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* @param sourceImage the base image
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* @param xOffset x-position of the origin of the new image
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* (specified relative to the input image)
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* @param yOffset y-position of the origin of the new image
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* (specified relative to the input image)
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* @param newWidth width of the new image
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* @param newHeight height of the new image
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* @param takeOwnership set to true to have the filter delete the \a sourceImage
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*/
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LTICropFilter(LTIImageStage* sourceImage, |
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lt_int32 xOffset, |
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lt_int32 yOffset, |
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lt_int32 newWidth, |
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lt_int32 newHeight, |
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bool takeOwnership);
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virtual ~LTICropFilter(); |
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virtual LT_STATUS initialize(); |
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LT_STATUS projectPointAtMag(double upperLeft,
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double mag,
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double& newUpperLeft) const; |
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LT_STATUS projectDimAtMag(double dim,
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double mag,
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double& newDim) const; |
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LT_STATUS getDimsAtMag(double mag,
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lt_uint32& width, |
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lt_uint32& height) const;
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bool getReaderScene(const LTIScene &decodeScene, LTIScene &readerScene) const; |
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protected:
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LT_STATUS decodeBegin(const LTIScene& scene);
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LT_STATUS decodeEnd(); |
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LT_STATUS decodeStrip(LTISceneBuffer& stripBuffer, const LTIScene& stripScene);
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LT_STATUS getChildScene(const LTIScene &decodeScene, LTIScene &childScene) const; |
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private:
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typedef LTIImageFilter Super;
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const lt_int32 m_xOffset;
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const lt_int32 m_yOffset;
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const lt_int32 m_newWidth;
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const lt_int32 m_newHeight;
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// nope
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LTICropFilter(const LTICropFilter&);
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LTICropFilter& operator=(const LTICropFilter&);
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}; |
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LT_END_NAMESPACE(LizardTech) |
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#if defined(LT_COMPILER_MS)
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#pragma warning(pop)
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#endif
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#endif // LTI_CROPFILTER_H |