icuSources/samples/layout/paragraph.h

   1 /*
   2  *******************************************************************************
   3  *
   4  *   Copyright (C) 1999-2003, 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
  18 #include "layout/LEFontInstance.h"
  19 #include "layout/ParagraphLayout.h"
  20
  21 #include "GUISupport.h"
  22 #include "RenderingSurface.h"
  23 //#include "FontMap.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     ParagraphLayout *fParagraphLayout;
  50
  51     le_int32         fLineCount;
  52     le_int32         fLinesMax;
  53     le_int32         fLinesGrow;
  54
  55     const ParagraphLayout::Line **fLines;
  56           LEUnicode *fChars;
  57
  58     le_int32         fLineHeight;
  59     le_int32         fAscent;
  60     le_int32         fWidth;
  61     le_int32         fHeight;
  62 };
  63
  64 inline le_int32 Paragraph::getLineHeight()
  65 {
  66     return fLineHeight;
  67 }
  68
  69 inline le_int32 Paragraph::getLineCount()
  70 {
  71     return fLineCount;
  72 }
  73
  74 inline le_int32 Paragraph::getAscent()
  75 {
  76     return fAscent;
  77 }
  78
  79 #endif
  80
  81