tdesktop/Telegram/SourceFiles/window/window_theme_warning.cpp

149 lines
4.2 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 "stdafx.h"
#include "window/window_theme_warning.h"
#include "styles/style_boxes.h"
#include "ui/widgets/buttons.h"
#include "ui/widgets/shadow.h"
#include "window/window_theme.h"
#include "lang.h"
namespace Window {
namespace Theme {
namespace {
constexpr int kWaitBeforeRevertMs = 15999;
} // namespace
WarningWidget::WarningWidget(QWidget *parent) : TWidget(parent)
, _secondsLeft(kWaitBeforeRevertMs / 1000)
, _keepChanges(this, lang(lng_theme_keep_changes), st::defaultBoxButton)
, _revert(this, lang(lng_theme_revert), st::defaultBoxButton) {
_keepChanges->setClickedCallback([] { Window::Theme::KeepApplied(); });
_revert->setClickedCallback([] { Window::Theme::Revert(); });
_timer.setTimeoutHandler([this] { handleTimer(); });
updateText();
}
void WarningWidget::keyPressEvent(QKeyEvent *e) {
if (e->key() == Qt::Key_Escape) {
Window::Theme::Revert();
}
}
void WarningWidget::paintEvent(QPaintEvent *e) {
Painter p(this);
if (!_cache.isNull()) {
if (!_animation.animating(getms())) {
if (isHidden()) {
return;
}
}
p.setOpacity(_animation.current(_hiding ? 0. : 1.));
p.drawPixmap(_outer.topLeft(), _cache);
if (!_animation.animating()) {
_cache = QPixmap();
showChildren();
_started = getms(true);
_timer.start(100);
}
return;
}
Ui::Shadow::paint(p, _inner, width(), st::boxRoundShadow);
App::roundRect(p, _inner, st::boxBg, BoxCorners);
p.setFont(st::boxTitleFont);
p.setPen(st::boxTitleFg);
p.drawTextLeft(_inner.x() + st::boxTitlePosition.x(), _inner.y() + st::boxTitlePosition.y(), width(), lang(lng_theme_sure_keep));
p.setFont(st::boxTextFont);
p.setPen(st::boxTextFg);
p.drawTextLeft(_inner.x() + st::boxTitlePosition.x(), _inner.y() + st::themeWarningTextTop, width(), _text);
}
void WarningWidget::resizeEvent(QResizeEvent *e) {
_inner = QRect((width() - st::themeWarningWidth) / 2, (height() - st::themeWarningHeight) / 2, st::themeWarningWidth, st::themeWarningHeight);
_outer = _inner.marginsAdded(st::boxRoundShadow.extend);
auto left = _inner.x() + _inner.width() - st::boxButtonPadding.right() - _keepChanges->width();
_keepChanges->moveToLeft(left, _inner.y() + _inner.height() - st::boxButtonPadding.bottom() - _keepChanges->height());
_revert->moveToLeft(left - st::boxButtonPadding.left() - _revert->width(), _keepChanges->y());
update();
}
void WarningWidget::handleTimer() {
auto msPassed = getms(true) - _started;
setSecondsLeft((kWaitBeforeRevertMs - msPassed) / 1000);
}
void WarningWidget::setSecondsLeft(int secondsLeft) {
if (secondsLeft <= 0) {
Window::Theme::Revert();
} else {
if (_secondsLeft != secondsLeft) {
_secondsLeft = secondsLeft;
updateText();
update();
}
_timer.start(100);
}
}
void WarningWidget::updateText() {
_text = lng_theme_reverting(lt_count, _secondsLeft);
}
void WarningWidget::showAnimated() {
startAnimation(false);
show();
setFocus();
}
void WarningWidget::hideAnimated() {
startAnimation(true);
}
void WarningWidget::startAnimation(bool hiding) {
_timer.stop();
_hiding = hiding;
if (_cache.isNull()) {
showChildren();
myEnsureResized(this);
_cache = myGrab(this, _outer);
}
hideChildren();
_animation.start([this] {
update();
if (_hiding) {
hide();
if (_hiddenCallback) {
_hiddenCallback();
}
}
}, _hiding ? 1. : 0., _hiding ? 0. : 1., st::boxDuration);
}
} // namespace Theme
} // namespace Window