tdesktop/Telegram/SourceFiles/ui/style_core.cpp

190 lines
4.9 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It 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 General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
namespace {
typedef QMap<QString, uint32> FontFamilyMap;
FontFamilyMap _fontFamilyMap;
}
namespace style {
FontData::FontData(uint32 size, uint32 flags, uint32 family, Font *other) : f(_fontFamilies[family]), m(f), _size(size), _flags(flags), _family(family) {
if (other) {
memcpy(modified, other, sizeof(modified));
} else {
memset(modified, 0, sizeof(modified));
}
modified[_flags] = Font(this);
f.setPixelSize(size);
f.setBold(_flags & FontBold);
f.setItalic(_flags & FontItalic);
f.setUnderline(_flags & FontUnderline);
f.setStyleStrategy(QFont::PreferQuality);
m = QFontMetrics(f);
height = m.height();
ascent = m.ascent();
descent = m.descent();
spacew = width(QLatin1Char(' '));
elidew = width(QLatin1Char('.')) * 3;
}
Font FontData::bold(bool set) const {
return otherFlagsFont(FontBold, set);
}
Font FontData::italic(bool set) const {
return otherFlagsFont(FontItalic, set);
}
Font FontData::underline(bool set) const {
return otherFlagsFont(FontUnderline, set);
}
uint32 FontData::size() const {
return _size;
}
uint32 FontData::flags() const {
return _flags;
}
uint32 FontData::family() const {
return _family;
}
Font FontData::otherFlagsFont(uint32 flag, bool set) const {
int32 newFlags = set ? (_flags | flag) : (_flags & ~flag);
if (!modified[newFlags].v()) {
modified[newFlags] = Font(_size, newFlags, _family, modified);
}
return modified[newFlags];
}
Font::Font(uint32 size, uint32 flags, const QString &family) {
if (_fontFamilyMap.isEmpty()) {
for (uint32 i = 0, s = style::_fontFamilies.size(); i != s; ++i) {
_fontFamilyMap.insert(style::_fontFamilies.at(i), i);
}
}
FontFamilyMap::const_iterator i = _fontFamilyMap.constFind(family);
if (i == _fontFamilyMap.cend()) {
style::_fontFamilies.push_back(family);
i = _fontFamilyMap.insert(family, style::_fontFamilies.size() - 1);
}
init(size, flags, i.value(), 0);
}
Font::Font(uint32 size, uint32 flags, uint32 family) {
init(size, flags, family, 0);
}
Font::Font(uint32 size, uint32 flags, uint32 family, Font *modified) {
init(size, flags, family, modified);
}
void Font::init(uint32 size, uint32 flags, uint32 family, Font *modified) {
uint32 key = _fontKey(size, flags, family);
FontDatas::const_iterator i = _fontsMap.constFind(key);
if (i == _fontsMap.cend()) {
i = _fontsMap.insert(key, new FontData(size, flags, family, modified));
}
ptr = i.value();
}
Color::Color(const Color &c) : ptr(c.owner ? new ColorData(*c.ptr) : c.ptr), owner(c.owner) {
}
Color::Color(const QColor &c) : owner(false) {
init(c.red(), c.green(), c.blue(), c.alpha());
}
Color::Color(uchar r, uchar g, uchar b, uchar a) : owner(false) {
init(r, g, b, a);
}
Color &Color::operator=(const Color &c) {
if (this != &c) {
if (owner) {
delete ptr;
}
ptr = c.owner ? new ColorData(*c.ptr) : c.ptr;
owner = c.owner;
}
return *this;
}
void Color::set(const QColor &newv) {
if (!owner) {
ptr = new ColorData(*ptr);
owner = true;
}
ptr->set(newv);
}
void Color::set(uchar r, uchar g, uchar b, uchar a) {
if (!owner) {
ptr = new ColorData(*ptr);
owner = true;
}
ptr->set(QColor(r, g, b, a));
}
void Color::init(uchar r, uchar g, uchar b, uchar a) {
uint32 key = _colorKey(r, g, b, a);
ColorDatas::const_iterator i = _colorsMap.constFind(key);
if (i == _colorsMap.cend()) {
i = _colorsMap.insert(key, new ColorData(r, g, b, a));
}
ptr = i.value();
}
Color::~Color() {
if (owner) {
delete ptr;
}
}
ColorData::ColorData(uchar r, uchar g, uchar b, uchar a) : c(int(r), int(g), int(b), int(a)), p(c), b(c) {
}
void ColorData::set(const QColor &color) {
c = color;
p = QPen(color);
b = QBrush(color);
}
void stopManager() {
for (FontDatas::const_iterator i = _fontsMap.cbegin(), e = _fontsMap.cend(); i != e; ++i) {
delete i.value();
}
_fontsMap.clear();
for (ColorDatas::const_iterator i = _colorsMap.cbegin(), e = _colorsMap.cend(); i != e; ++i) {
delete i.value();
}
_colorsMap.clear();
}
};