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https://github.com/qTox/qTox.git
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3c58b992c6
By profiling qTox using perf I discovered, that NotificationIcon::updateGradient takes significant amount of CPU time even though qTox is idle and no one is typing. This commit fixes: 1) correctly determine visibility of NotificationIcon 2) only invalidate boundingRect in fixed intervals 3) apply the same fixes to Spinner since it has the same problem
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/*
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Copyright © 2014-2019 by The qTox Project Contributors
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This file is part of qTox, a Qt-based graphical interface for Tox.
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qTox is libre 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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qTox 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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You should have received a copy of the GNU General Public License
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along with qTox. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "../chatlinecontent.h"
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#include <QLinearGradient>
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#include <QPixmap>
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#include <QTimer>
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class NotificationIcon : public ChatLineContent
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{
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Q_OBJECT
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public:
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explicit NotificationIcon(QSize size);
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QRectF boundingRect() const override;
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void paint(QPainter* painter, const QStyleOptionGraphicsItem* option,
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QWidget* widget) override;
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void setWidth(qreal width) override;
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qreal getAscent() const override;
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private slots:
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void updateGradient();
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private:
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static constexpr int framerate = 30; // 30Hz
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QSize size;
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QPixmap pmap;
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QLinearGradient grad;
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QTimer updateTimer;
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qreal dotWidth = 0.2;
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qreal alpha = 0.0;
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};
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