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56 lines
1.5 KiB
56 lines
1.5 KiB
/*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard 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, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard 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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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "UBCircleFrame.h"
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#include "core/memcheck.h"
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UBCircleFrame::UBCircleFrame(QWidget* parent)
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: QFrame(parent)
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{
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// NOOP
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}
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UBCircleFrame::~UBCircleFrame()
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{
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// NOOP
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}
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void UBCircleFrame::paintEvent(QPaintEvent * event)
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{
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Q_UNUSED(event);
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.setBrush(QBrush(Qt::black));
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qreal diameter = (width() - 2) / maxPenWidth * currentPenWidth;
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diameter = qMax(2.0, diameter);
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qreal x = (width() - diameter) / 2;
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painter.drawEllipse(x, x, diameter, diameter);
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}
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