icuSources/samples/layout/paragraph.h

   1 /*
   2  *******************************************************************************
   3  *
   4  *   Copyright (C) 1999-2007, International Business Machines
   5  *   Corporation and others.  All Rights Reserved.
   6  *
   7  *******************************************************************************
   8  *   file name:  Paragraph.h
   9  *
  10  *   created on: 09/06/2000
  11  *   created by: Eric R. Mader
  12  */
  13 #ifndef __PARAGRAPH_H
  14 #define __PARAGRAPH_H
  15
  16 #include "unicode/utypes.h"
  17 #include "unicode/ubidi.h"
  18
  19 #include "layout/LEFontInstance.h"
  20 #include "layout/ParagraphLayout.h"
  21
  22 #include "GUISupport.h"
  23 #include "RenderingSurface.h"
  24
  25 U_NAMESPACE_USE
  26
  27 #define MARGIN 10
  28
  29 #if 0
  30 class LineInfo;
  31 #endif
  32
  33 class Paragraph
  34 {
  35 public:
  36     Paragraph(const LEUnicode chars[], le_int32 charCount, const FontRuns *fontRuns, LEErrorCode &status);
  37
  38     ~Paragraph();
  39
  40     le_int32 getAscent();
  41     le_int32 getLineHeight();
  42     le_int32 getLineCount();
  43     void breakLines(le_int32 width, le_int32 height);
  44     void draw(RenderingSurface *surface, le_int32 firstLine, le_int32 lastLine);
  45
  46     static Paragraph *paragraphFactory(const char *fileName, const LEFontInstance *font, GUISupport *guiSupport);
  47
  48 private:
  49     void addLine(const ParagraphLayout::Line *line);
  50
  51     ParagraphLayout **fParagraphLayout;
  52
  53     le_int32          fParagraphCount;
  54     le_int32          fParagraphMax;
  55     le_int32          fParagraphGrow;
  56
  57     le_int32          fLineCount;
  58     le_int32          fLinesMax;
  59     le_int32          fLinesGrow;
  60
  61     const ParagraphLayout::Line **fLines;
  62           LEUnicode *fChars;
  63
  64     le_int32         fLineHeight;
  65     le_int32         fAscent;
  66     le_int32         fWidth;
  67     le_int32         fHeight;
  68     UBiDiLevel       fParagraphLevel;
  69 };
  70
  71 inline le_int32 Paragraph::getLineHeight()
  72 {
  73     return fLineHeight;
  74 }
  75
  76 inline le_int32 Paragraph::getLineCount()
  77 {
  78     return fLineCount;
  79 }
  80
  81 inline le_int32 Paragraph::getAscent()
  82 {
  83     return fAscent;
  84 }
  85
  86 #endif
  87
  88