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notepad-plus-plus/scintilla/src/Style.cxx

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// 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"
#ifdef SCI_NAMESPACE
using namespace Scintilla;
#endif
FontAlias::FontAlias() {
}
FontAlias::~FontAlias() {
SetID(0);
// ~Font will not release the actual font resource sine it is now 0
}
void FontAlias::MakeAlias(Font &fontOrigin) {
SetID(fontOrigin.GetID());
}
void FontAlias::ClearFont() {
SetID(0);
}
bool FontSpecification::EqualTo(const FontSpecification &other) const {
return bold == other.bold &&
italic == other.italic &&
size == other.size &&
characterSet == other.characterSet &&
fontName == other.fontName;
}
FontMeasurements::FontMeasurements() {
Clear();
}
void FontMeasurements::Clear() {
lineHeight = 2;
ascent = 1;
descent = 1;
externalLeading = 0;
aveCharWidth = 1;
spaceWidth = 1;
sizeZoomed = 2;
}
Style::Style() : FontSpecification() {
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) : FontSpecification(), FontMeasurements() {
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() {
}
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_;
font.ClearFont();
FontMeasurements::Clear();
}
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);
}
void Style::Copy(Font &font_, const FontMeasurements &fm_) {
font.MakeAlias(font_);
#if PLAT_WX
font.SetAscent(fm_.ascent);
#endif
(FontMeasurements &)(*this) = fm_;
}