100 lines
2.2 KiB
C++
100 lines
2.2 KiB
C++
/*
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*******************************************************************************
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*
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* Copyright (C) 1999-2001, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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* file name: Paragraph.h
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*
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* created on: 09/06/2000
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* created by: Eric R. Mader
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*/
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#ifndef __PARAGRAPH_H
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#define __PARAGRAPH_H
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#include "unicode/utypes.h"
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#include "unicode/uscript.h"
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#include "unicode/brkiter.h"
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#include "unicode/ubidi.h"
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#include "GUISupport.h"
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#include "RenderingFontInstance.h"
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#include "FontMap.h"
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U_NAMESPACE_USE
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#define MARGIN 10
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struct RunParams
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{
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const RenderingFontInstance *fontInstance;
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UChar *text;
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int32_t count;
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UScriptCode scriptCode;
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UBool rightToLeft;
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};
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struct RunInfo
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{
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const RenderingFontInstance *fontInstance;
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int32_t charBase;
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int32_t glyphBase;
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UBool rightToLeft;
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};
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class Paragraph
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{
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public:
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Paragraph(void *surface,RunParams runs[], int32_t count, UBiDi *bidi);
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~Paragraph();
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int32_t getAscent();
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int32_t getLineHeight();
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int32_t getLineCount();
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void breakLines(int32_t width, int32_t height);
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void draw(void *surface, int32_t firstLine, int32_t lastLine);
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static Paragraph *paragraphFactory(const char *fileName, FontMap *fontMap, GUISupport *guiSupport, void *surface);
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protected:
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int32_t previousBreak(int32_t charIndex);
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int32_t getCharRun(int32_t ch, int32_t startingRun, int32_t direction);
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int32_t getGlyphRun(int32_t glyph, int32_t startingRun, int32_t direction);
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int32_t getRunWidth(int32_t startGlyph, int32_t endGlyph);
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int32_t drawRun(void *surface, const RenderingFontInstance *fontInstance, int32_t firstChar, int32_t lastChar,
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int32_t x, int32_t y);
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private:
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UBiDi *fBidi;
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int32_t fRunCount;
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RunInfo *fRunInfo;
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int32_t fCharCount;
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UChar *fText;
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BreakIterator *fBrkiter;
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int32_t fGlyphCount;
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LEGlyphID *fGlyphs;
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int32_t *fCharIndices;
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int32_t *fGlyphIndices;
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int32_t *fDX;
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int32_t *fDY;
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int32_t fBreakCount;
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int32_t *fBreakArray;
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int32_t fLineHeight;
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int32_t fAscent;
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int32_t fWidth;
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int32_t fHeight;
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};
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#endif
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