57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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*/
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#include "stdafx.h"
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#include "ui/widgets/shadow.h"
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namespace Ui {
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void ToggleableShadow::setMode(Mode mode) {
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if (mode == Mode::ShownFast || mode == Mode::HiddenFast) {
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if (!_a_opacity.animating()) {
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_a_opacity.finish();
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update();
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}
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}
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if (_shown && (mode == Mode::Hidden || mode == Mode::HiddenFast)) {
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_shown = false;
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if (mode == Mode::Hidden) {
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_a_opacity.start([this] { update(); }, 1., 0., st::shadowToggleDuration);
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}
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} else if (!_shown && (mode == Mode::Shown || mode == Mode::ShownFast)) {
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_shown = true;
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if (mode == Mode::Shown) {
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_a_opacity.start([this] { update(); }, 0., 1., st::shadowToggleDuration);
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}
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}
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}
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void ToggleableShadow::paintEvent(QPaintEvent *e) {
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Painter p(this);
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if (_a_opacity.animating(getms())) {
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p.setOpacity(_a_opacity.current());
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} else if (!_shown) {
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return;
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}
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p.fillRect(e->rect(), _color);
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}
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} // namespace Ui
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