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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/* This file is part of the KDE project
Copyright (C) 2003 Ulrich Kuettler <[email protected]>
Copyright (C) 2006 Alfredo Beaumont Sainz <[email protected]>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef FONTSTYLE_H
#define FONTSTYLE_H
#include <tqstring.h>
#include <tqfont.h>
#include "contextstyle.h"
#include "kformuladefs.h"
#include "symboltable.h"
KFORMULA_NAMESPACE_BEGIN
class Artwork;
class SymbolTable;
/**
* Base class for all supported font styles.
*/
class FontStyle {
public:
~FontStyle() {}
/**
* lazy init support. Needs to be run before anything else.
* @param install if true fonts may be installed if needed
*/
bool init( ContextStyle* context, bool install = true );
/// the table for ordinary symbols (those that have a unicode value)
const SymbolTable* symbolTable() const { return &m_symbolTable; }
SymbolTable* symbolTable() { return &m_symbolTable; }
Artwork* createArtwork(SymbolType type = EmptyBracket) const;
static TQStringList missingFonts( bool install = true );
static bool m_installed;
static void testFont( TQStringList& missing, const TQString& fontName );
private:
static TQStringList missingFontsInternal();
static void installFonts();
SymbolTable m_symbolTable;
};
const TQChar spaceChar = 0x0020;
const TQChar leftParenthesisChar = 0x0028;
const TQChar rightParenthesisChar = 0x0029;
const TQChar leftSquareBracketChar = 0x005B;
const TQChar rightSquareBracketChar = 0x005D;
const TQChar leftCurlyBracketChar = 0x007B;
const TQChar verticalLineChar = 0x007C;
const TQChar rightCurlyBracketChar = 0x007D;
const TQChar leftAngleBracketChar = 0x2329;
const TQChar rightAngleBracketChar = 0x232A;
const TQChar slashChar = 0x002F;
const TQChar backSlashChar = 0x005C;
const TQChar integralChar = 0x222B;
const TQChar summationChar = 0x2211;
const TQChar productChar = 0x220F;
const TQChar applyFunctionChar = 0x2061;
const TQChar invisibleTimes = 0x2062;
const TQChar invisibleComma = 0x2063;
extern const TQChar leftRoundBracket[];
extern const TQChar leftSquareBracket[];
extern const TQChar leftCurlyBracket[];
extern const TQChar leftLineBracket[];
extern const TQChar rightLineBracket[];
extern const TQChar rightRoundBracket[];
extern const TQChar rightSquareBracket[];
extern const TQChar rightCurlyBracket[];
/*
* A piece of art that may be used by any element.
*/
class Artwork {
public:
Artwork(SymbolType type = EmptyBracket);
virtual ~Artwork() {}
virtual void calcSizes( const ContextStyle& style,
ContextStyle::TextStyle tstyle,
double factor,
luPt parentSize );
virtual void calcSizes( const ContextStyle& style,
ContextStyle::TextStyle tstyle,
double factor );
virtual void draw( TQPainter& painter, const LuPixelRect& r,
const ContextStyle& context,
ContextStyle::TextStyle tstyle,
StyleAttributes& style,
luPt parentSize, const LuPixelPoint& origin );
virtual void draw( TQPainter& painter, const LuPixelRect& r,
const ContextStyle& context,
ContextStyle::TextStyle tstyle,
StyleAttributes& style,
const LuPixelPoint& parentOrigin );
luPixel getWidth() const { return size.width(); }
luPixel getHeight() const { return size.height(); }
void setWidth( luPixel width ) { size.setWidth(width); }
void setHeight( luPixel height ) { size.setHeight(height); }
luPixel getBaseline() const { return baseline; }
void setBaseline( luPixel line ) { baseline = line; }
luPixel getX() const { return point.x(); }
luPixel getY() const { return point.y(); }
void setX( luPixel x ) { point.setX( x ); }
void setY( luPixel y ) { point.setY( y ); }
SymbolType getType() const { return type; }
void setType(SymbolType t) { type = t; }
virtual bool isNormalChar() const { return getBaseline() != -1 && ( cmChar == -1 ); }
virtual double slant() const { return 0; }
protected:
void calcCharSize( const ContextStyle& style, luPt height, TQChar ch );
void drawCharacter( TQPainter& painter, const ContextStyle& style,
luPixel x, luPixel y, luPt height, TQChar ch );
void calcCharSize( const ContextStyle& style, TQFont f, luPt height, TQChar c );
void drawCharacter( TQPainter& painter, const ContextStyle& style,
TQFont f,
luPixel x, luPixel y, luPt height, uchar c );
void calcRoundBracket( const ContextStyle& style, const TQChar chars[], luPt height, luPt charHeight );
void calcCurlyBracket( const ContextStyle& style, const TQChar chars[], luPt height, luPt charHeight );
void drawBigRoundBracket( TQPainter& p, const ContextStyle& style, const TQChar chars[], luPixel x, luPixel y, luPt charHeight );
void drawBigCurlyBracket( TQPainter& p, const ContextStyle& style, const TQChar chars[], luPixel x, luPixel y, luPt charHeight );
private:
LuPixelSize size;
LuPixelPoint point;
/**
* Used if we are a character.
*/
luPixel baseline;
SymbolType type;
bool calcCMDelimiterSize( const ContextStyle& context, uchar c,
luPt fontSize, luPt parentSize );
void calcLargest( const ContextStyle& context, uchar c, luPt fontSize );
void drawCMDelimiter( TQPainter& painter, const ContextStyle& style,
luPixel x, luPixel y, luPt height );
short cmChar;
};
KFORMULA_NAMESPACE_END
#endif
|
