1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
*******************************************************************************
*
* Copyright (C) 1999-2001, International Business Machines
* Corporation and others. All Rights Reserved.
*
*******************************************************************************
* file name: Paragraph.h
*
* created on: 09/06/2000
* created by: Eric R. Mader
*/
#ifndef __PARAGRAPH_H
#define __PARAGRAPH_H
#include "unicode/utypes.h"
#include "unicode/uscript.h"
#include "unicode/brkiter.h"
#include "unicode/ubidi.h"
#include "GUISupport.h"
#include "RenderingFontInstance.h"
#include "FontMap.h"
U_NAMESPACE_USE
#define MARGIN 10
struct RunParams
{
const RenderingFontInstance *fontInstance;
UChar *text;
int32_t count;
UScriptCode scriptCode;
UBool rightToLeft;
};
struct RunInfo
{
const RenderingFontInstance *fontInstance;
int32_t charBase;
int32_t glyphBase;
UBool rightToLeft;
};
class Paragraph
{
public:
Paragraph(void *surface,RunParams runs[], int32_t count, UBiDi *bidi);
~Paragraph();
int32_t getAscent();
int32_t getLineHeight();
int32_t getLineCount();
void breakLines(int32_t width, int32_t height);
void draw(void *surface, int32_t firstLine, int32_t lastLine);
static Paragraph *paragraphFactory(const char *fileName, FontMap *fontMap, GUISupport *guiSupport, void *surface);
protected:
int32_t previousBreak(int32_t charIndex);
int32_t getCharRun(int32_t ch, int32_t startingRun, int32_t direction);
int32_t getGlyphRun(int32_t glyph, int32_t startingRun, int32_t direction);
int32_t getRunWidth(int32_t startGlyph, int32_t endGlyph);
int32_t drawRun(void *surface, const RenderingFontInstance *fontInstance, int32_t firstChar, int32_t lastChar,
int32_t x, int32_t y);
private:
UBiDi *fBidi;
int32_t fRunCount;
RunInfo *fRunInfo;
int32_t fCharCount;
UChar *fText;
BreakIterator *fBrkiter;
int32_t fGlyphCount;
LEGlyphID *fGlyphs;
int32_t *fCharIndices;
int32_t *fGlyphIndices;
int32_t *fDX;
int32_t *fDY;
int32_t fBreakCount;
int32_t *fBreakArray;
int32_t fLineHeight;
int32_t fAscent;
int32_t fWidth;
int32_t fHeight;
};
#endif
|
