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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 <stdexcept>
#include <string_view>
#include <vector>
#include <optional>
#include <memory>
#include "ScintillaTypes.h"
#include "Debugging.h"
#include "Geometry.h"
#include "Platform.h"
#include "Style.h"
using namespace Scintilla;
using namespace Scintilla::Internal;
bool FontSpecification::operator==(const FontSpecification &other) const noexcept {
return fontName == other.fontName &&
weight == other.weight &&
italic == other.italic &&
size == other.size &&
characterSet == other.characterSet &&
extraFontFlag == other.extraFontFlag;
}
bool FontSpecification::operator<(const FontSpecification &other) const noexcept {
if (fontName != other.fontName)
return fontName < other.fontName;
if (weight != other.weight)
return weight < other.weight;
if (italic != other.italic)
return !italic;
if (size != other.size)
return size < other.size;
if (characterSet != other.characterSet)
return characterSet < other.characterSet;
if (extraFontFlag != other.extraFontFlag)
return extraFontFlag < other.extraFontFlag;
return false;
}
FontMeasurements::FontMeasurements() noexcept {
ClearMeasurements();
}
void FontMeasurements::ClearMeasurements() noexcept {
ascent = 1;
descent = 1;
capitalHeight = 1;
aveCharWidth = 1;
spaceWidth = 1;
sizeZoomed = 2;
}
Style::Style() : FontSpecification() {
Clear(ColourRGBA(0, 0, 0), ColourRGBA(0xff, 0xff, 0xff),
Platform::DefaultFontSize() * FontSizeMultiplier, nullptr, CharacterSet::Default,
FontWeight::Normal, false, false, false, CaseForce::mixed, true, true, false);
}
Style::Style(const Style &source) noexcept : FontSpecification(), FontMeasurements() {
Clear(ColourRGBA(0, 0, 0), ColourRGBA(0xff, 0xff, 0xff),
0, nullptr, CharacterSet::Ansi,
FontWeight::Normal, false, false, false, CaseForce::mixed, true, true, false);
fore = source.fore;
back = source.back;
characterSet = source.characterSet;
weight = source.weight;
italic = source.italic;
size = source.size;
fontName = source.fontName;
eolFilled = source.eolFilled;
underline = source.underline;
caseForce = source.caseForce;
visible = source.visible;
changeable = source.changeable;
hotspot = source.hotspot;
}
Style::~Style() = default;
Style &Style::operator=(const Style &source) noexcept {
if (this == &source)
return * this;
Clear(ColourRGBA(0, 0, 0), ColourRGBA(0xff, 0xff, 0xff),
0, nullptr, CharacterSet::Default,
FontWeight::Normal, false, false, false, CaseForce::mixed, true, true, false);
fore = source.fore;
back = source.back;
characterSet = source.characterSet;
weight = source.weight;
italic = source.italic;
size = source.size;
fontName = source.fontName;
eolFilled = source.eolFilled;
underline = source.underline;
caseForce = source.caseForce;
visible = source.visible;
changeable = source.changeable;
return *this;
}
void Style::Clear(ColourRGBA fore_, ColourRGBA back_, int size_,
const char *fontName_, CharacterSet characterSet_,
FontWeight weight_, bool italic_, bool eolFilled_,
bool underline_, CaseForce caseForce_,
bool visible_, bool changeable_, bool hotspot_) noexcept {
fore = fore_;
back = back_;
characterSet = characterSet_;
weight = weight_;
italic = italic_;
size = size_;
fontName = fontName_;
eolFilled = eolFilled_;
underline = underline_;
caseForce = caseForce_;
visible = visible_;
changeable = changeable_;
hotspot = hotspot_;
font.reset();
FontMeasurements::ClearMeasurements();
}
void Style::ClearTo(const Style &source) noexcept {
Clear(
source.fore,
source.back,
source.size,
source.fontName,
source.characterSet,
source.weight,
source.italic,
source.eolFilled,
source.underline,
source.caseForce,
source.visible,
source.changeable,
source.hotspot);
}
void Style::Copy(std::shared_ptr<Font> font_, const FontMeasurements &fm_) noexcept {
font = std::move(font_);
(FontMeasurements &)(*this) = fm_;
}
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