icuSources/samples/layout/paragraph.h

   1 /*
   2  *******************************************************************************
   3  *
   4  *   Copyright (C) 1999-2005, 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 //#include "FontMap.h"
  25
  26 U_NAMESPACE_USE
  27
  28 #define MARGIN 10
  29
  30 #if 0
  31 class LineInfo;
  32 #endif
  33
  34 class Paragraph
  35 {
  36 public:
  37     Paragraph(const LEUnicode chars[], le_int32 charCount, const FontRuns *fontRuns, LEErrorCode &status);
  38
  39     ~Paragraph();
  40
  41     le_int32 getAscent();
  42     le_int32 getLineHeight();
  43     le_int32 getLineCount();
  44     void breakLines(le_int32 width, le_int32 height);
  45     void draw(RenderingSurface *surface, le_int32 firstLine, le_int32 lastLine);
  46
  47     static Paragraph *paragraphFactory(const char *fileName, const LEFontInstance *font, GUISupport *guiSupport);
  48
  49 private:
  50     void addLine(const ParagraphLayout::Line *line);
  51
  52     ParagraphLayout **fParagraphLayout;
  53
  54     le_int32          fParagraphCount;
  55     le_int32          fParagraphMax;
  56     le_int32          fParagraphGrow;
  57
  58     le_int32          fLineCount;
  59     le_int32          fLinesMax;
  60     le_int32          fLinesGrow;
  61
  62     const ParagraphLayout::Line **fLines;
  63           LEUnicode *fChars;
  64
  65     le_int32         fLineHeight;
  66     le_int32         fAscent;
  67     le_int32         fWidth;
  68     le_int32         fHeight;
  69     UBiDiLevel       fParagraphLevel;
  70 };
  71
  72 inline le_int32 Paragraph::getLineHeight()
  73 {
  74     return fLineHeight;
  75 }
  76
  77 inline le_int32 Paragraph::getLineCount()
  78 {
  79     return fLineCount;
  80 }
  81
  82 inline le_int32 Paragraph::getAscent()
  83 {
  84     return fAscent;
  85 }
  86
  87 #endif
  88
  89