tdesktop/Telegram/SourceFiles/ui/wrap/fade_wrap.cpp

98 lines
2.4 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) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "ui/wrap/fade_wrap.h"
#include "ui/widgets/shadow.h"
namespace Ui {
FadeWrap<RpWidget>::FadeWrap(
QWidget *parent,
object_ptr<RpWidget> &&child,
float64 scale)
: Parent(parent, std::move(child))
, _animation(this, scale)
, _duration(st::fadeWrapDuration) {
if (auto weak = wrapped()) {
weak->show();
}
}
FadeWrap<RpWidget> *FadeWrap<RpWidget>::setDuration(int duration) {
_duration = duration;
return this;
}
FadeWrap<RpWidget> *FadeWrap<RpWidget>::toggle(
bool shown,
anim::type animated) {
auto changed = (shown != _animation.visible());
if (shown) {
if (animated == anim::type::normal) {
_animation.fadeIn(_duration);
} else {
_animation.show();
}
} else {
if (animated == anim::type::normal) {
_animation.fadeOut(_duration);
} else {
_animation.hide();
}
}
if (changed) {
_toggledChanged.fire_copy(shown);
}
return this;
}
FadeWrap<RpWidget> *FadeWrap<RpWidget>::finishAnimating() {
_animation.finish();
return this;
}
FadeWrap<RpWidget> *FadeWrap<RpWidget>::toggleOn(
rpl::producer<bool> &&shown) {
std::move(shown)
| rpl::start_with_next([this](bool shown) {
toggle(shown, anim::type::normal);
}, lifetime());
finishAnimating();
return this;
}
void FadeWrap<RpWidget>::paintEvent(QPaintEvent *e) {
Painter p(this);
_animation.paint(p);
}
FadeShadow::FadeShadow(QWidget *parent)
: FadeShadow(parent, st::shadowFg) {
}
FadeShadow::FadeShadow(QWidget *parent, style::color color)
: Parent(parent, object_ptr<PlainShadow>(parent, color)) {
hide(anim::type::instant);
}
} // namespace Ui