1 // Scintilla source code edit control
2 /** @file Style.cxx
3 ** Defines the font and colour style for a class of text.
4 **/
5 // Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org>
6 // The License.txt file describes the conditions under which this software may be distributed.
7
8 #include <string.h>
9
10 #include "Platform.h"
11
12 #include "Scintilla.h"
13 #include "Style.h"
14
15 #ifdef SCI_NAMESPACE
16 using namespace Scintilla;
17 #endif
18
FontAlias()19 FontAlias::FontAlias() {
20 }
21
~FontAlias()22 FontAlias::~FontAlias() {
23 SetID(0);
24 // ~Font will not release the actual font resource sine it is now 0
25 }
26
MakeAlias(Font & fontOrigin)27 void FontAlias::MakeAlias(Font &fontOrigin) {
28 SetID(fontOrigin.GetID());
29 }
30
ClearFont()31 void FontAlias::ClearFont() {
32 SetID(0);
33 }
34
EqualTo(const FontSpecification & other) const35 bool FontSpecification::EqualTo(const FontSpecification &other) const {
36 return bold == other.bold &&
37 italic == other.italic &&
38 size == other.size &&
39 characterSet == other.characterSet &&
40 fontName == other.fontName;
41 }
42
FontMeasurements()43 FontMeasurements::FontMeasurements() {
44 Clear();
45 }
46
Clear()47 void FontMeasurements::Clear() {
48 lineHeight = 2;
49 ascent = 1;
50 descent = 1;
51 externalLeading = 0;
52 aveCharWidth = 1;
53 spaceWidth = 1;
54 sizeZoomed = 2;
55 }
56
Style()57 Style::Style() : FontSpecification() {
58 Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
59 Platform::DefaultFontSize(), 0, SC_CHARSET_DEFAULT,
60 false, false, false, false, caseMixed, true, true, false);
61 }
62
Style(const Style & source)63 Style::Style(const Style &source) : FontSpecification(), FontMeasurements() {
64 Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
65 0, 0, 0,
66 false, false, false, false, caseMixed, true, true, false);
67 fore.desired = source.fore.desired;
68 back.desired = source.back.desired;
69 characterSet = source.characterSet;
70 bold = source.bold;
71 italic = source.italic;
72 size = source.size;
73 eolFilled = source.eolFilled;
74 underline = source.underline;
75 caseForce = source.caseForce;
76 visible = source.visible;
77 changeable = source.changeable;
78 hotspot = source.hotspot;
79 }
80
~Style()81 Style::~Style() {
82 }
83
operator =(const Style & source)84 Style &Style::operator=(const Style &source) {
85 if (this == &source)
86 return * this;
87 Clear(ColourDesired(0, 0, 0), ColourDesired(0xff, 0xff, 0xff),
88 0, 0, SC_CHARSET_DEFAULT,
89 false, false, false, false, caseMixed, true, true, false);
90 fore.desired = source.fore.desired;
91 back.desired = source.back.desired;
92 characterSet = source.characterSet;
93 bold = source.bold;
94 italic = source.italic;
95 size = source.size;
96 eolFilled = source.eolFilled;
97 underline = source.underline;
98 caseForce = source.caseForce;
99 visible = source.visible;
100 changeable = source.changeable;
101 return *this;
102 }
103
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_)104 void Style::Clear(ColourDesired fore_, ColourDesired back_, int size_,
105 const char *fontName_, int characterSet_,
106 bool bold_, bool italic_, bool eolFilled_,
107 bool underline_, ecaseForced caseForce_,
108 bool visible_, bool changeable_, bool hotspot_) {
109 fore.desired = fore_;
110 back.desired = back_;
111 characterSet = characterSet_;
112 bold = bold_;
113 italic = italic_;
114 size = size_;
115 fontName = fontName_;
116 eolFilled = eolFilled_;
117 underline = underline_;
118 caseForce = caseForce_;
119 visible = visible_;
120 changeable = changeable_;
121 hotspot = hotspot_;
122 font.ClearFont();
123 FontMeasurements::Clear();
124 }
125
ClearTo(const Style & source)126 void Style::ClearTo(const Style &source) {
127 Clear(
128 source.fore.desired,
129 source.back.desired,
130 source.size,
131 source.fontName,
132 source.characterSet,
133 source.bold,
134 source.italic,
135 source.eolFilled,
136 source.underline,
137 source.caseForce,
138 source.visible,
139 source.changeable,
140 source.hotspot);
141 }
142
Copy(Font & font_,const FontMeasurements & fm_)143 void Style::Copy(Font &font_, const FontMeasurements &fm_) {
144 font.MakeAlias(font_);
145 #if PLAT_WX
146 font.SetAscent(fm_.ascent);
147 #endif
148 (FontMeasurements &)(*this) = fm_;
149 }
150