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
|
// Scintilla source code edit control
/** @file Style.cxx
** Defines the font and colour style for a class of text.
**/
// Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
#include <string.h>
#include "Platform.h"
#include "Scintilla.h"
#include "Style.h"
Style::Style() {
aliasOfDefaultFont = true;
Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
Platform::DefaultFontSize(), 0, SC_CHARSET_DEFAULT,
false, false, false, false, caseMixed, true, true, false);
}
Style::Style(const Style &source) {
Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
0, 0, 0,
false, false, false, false, caseMixed, true, true, false);
fore.desired = source.fore.desired;
back.desired = source.back.desired;
characterSet = source.characterSet;
bold = source.bold;
italic = source.italic;
size = source.size;
eolFilled = source.eolFilled;
underline = source.underline;
caseForce = source.caseForce;
visible = source.visible;
changeable = source.changeable;
hotspot = source.hotspot;
}
Style::~Style() {
if (aliasOfDefaultFont)
font.SetID(0);
else
font.Release();
aliasOfDefaultFont = false;
}
Style &Style::operator=(const Style &source) {
if (this == &source)
return * this;
Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
0, 0, SC_CHARSET_DEFAULT,
false, false, false, false, caseMixed, true, true, false);
fore.desired = source.fore.desired;
back.desired = source.back.desired;
characterSet = source.characterSet;
bold = source.bold;
italic = source.italic;
size = source.size;
eolFilled = source.eolFilled;
underline = source.underline;
caseForce = source.caseForce;
visible = source.visible;
changeable = source.changeable;
return *this;
}
void Style::Clear(ColourDesired fore_, ColourDesired back_, int size_,
const char *fontName_, int characterSet_,
bool bold_, bool italic_, bool eolFilled_,
bool underline_, ecaseForced caseForce_,
bool visible_, bool changeable_, bool hotspot_) {
fore.desired = fore_;
back.desired = back_;
characterSet = characterSet_;
bold = bold_;
italic = italic_;
size = size_;
fontName = fontName_;
eolFilled = eolFilled_;
underline = underline_;
caseForce = caseForce_;
visible = visible_;
changeable = changeable_;
hotspot = hotspot_;
if (aliasOfDefaultFont)
font.SetID(0);
else
font.Release();
aliasOfDefaultFont = false;
}
void Style::ClearTo(const Style &source) {
Clear(
source.fore.desired,
source.back.desired,
source.size,
source.fontName,
source.characterSet,
source.bold,
source.italic,
source.eolFilled,
source.underline,
source.caseForce,
source.visible,
source.changeable,
source.hotspot);
}
bool Style::EquivalentFontTo(const Style *other) const {
if (bold != other->bold ||
italic != other->italic ||
size != other->size ||
characterSet != other->characterSet)
return false;
if (fontName == other->fontName)
return true;
if (!fontName)
return false;
if (!other->fontName)
return false;
return strcmp(fontName, other->fontName) == 0;
}
void Style::Realise(Surface &surface, int zoomLevel, Style *defaultStyle, bool extraFontFlag) {
sizeZoomed = size + zoomLevel;
if (sizeZoomed <= 2) // Hangs if sizeZoomed <= 1
sizeZoomed = 2;
if (aliasOfDefaultFont)
font.SetID(0);
else
font.Release();
int deviceHeight = surface.DeviceHeightFont(sizeZoomed);
aliasOfDefaultFont = defaultStyle &&
(EquivalentFontTo(defaultStyle) || !fontName);
if (aliasOfDefaultFont) {
font.SetID(defaultStyle->font.GetID());
} else if (fontName) {
font.Create(fontName, characterSet, deviceHeight, bold, italic, extraFontFlag);
} else {
font.SetID(0);
}
ascent = surface.Ascent(font);
descent = surface.Descent(font);
// Probably more typographically correct to include leading
// but that means more complex drawing as leading must be erased
//lineHeight = surface.ExternalLeading() + surface.Height();
externalLeading = surface.ExternalLeading(font);
lineHeight = surface.Height(font);
aveCharWidth = surface.AverageCharWidth(font);
spaceWidth = surface.WidthChar(font, ' ');
}
|
