tdesktop/Telegram/SourceFiles/ui/style/style_core_color.h

112 lines
2.6 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
*/
#pragma once
namespace style {
namespace internal {
void destroyColors();
class ColorData;
class Color {
public:
Color(Qt::Initialization = Qt::Uninitialized) {
}
Color(const Color &c);
explicit Color(const QColor &c);
Color(uchar r, uchar g, uchar b, uchar a = 255);
Color &operator=(const Color &c);
~Color();
void set(const QColor &newv);
void set(uchar r, uchar g, uchar b, uchar a = 255);
operator const QBrush &() const;
operator const QPen &() const;
ColorData *operator->() const {
return ptr;
}
ColorData *v() const {
return ptr;
}
explicit operator bool() const {
return !!ptr;
}
private:
ColorData *ptr = nullptr;
bool owner = false;
void init(uchar r, uchar g, uchar b, uchar a);
friend void startManager();
Color(ColorData *p) : ptr(p) {
}
friend class ColorData;
};
class ColorData {
public:
QColor c;
QPen p;
QBrush b;
private:
ColorData(uchar r, uchar g, uchar b, uchar a);
void set(const QColor &c);
friend class Color;
};
inline bool operator==(const Color &a, const Color &b) {
return a->c == b->c;
}
inline bool operator!=(const Color &a, const Color &b) {
return a->c != b->c;
}
inline Color::operator const QBrush &() const {
return ptr->b;
}
inline Color::operator const QPen &() const {
return ptr->p;
}
} // namespace internal
inline QColor interpolate(const style::internal::Color &a, const style::internal::Color &b, float64 opacity_b) {
QColor result;
result.setRedF((a->c.redF() * (1. - opacity_b)) + (b->c.redF() * opacity_b));
result.setGreenF((a->c.greenF() * (1. - opacity_b)) + (b->c.greenF() * opacity_b));
result.setBlueF((a->c.blueF() * (1. - opacity_b)) + (b->c.blueF() * opacity_b));
return result;
}
} // namespace style