keepassxc

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/*
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 *  Copyright (C) 2018 KeePassXC Team <team@keepassxc.org>
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 *
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 *  This program 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 2 or (at your option)
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 *  version 3 of the License.
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 *
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 *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
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 */
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#include "SquareSvgWidget.h"
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#include <QResizeEvent>
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SquareSvgWidget::SquareSvgWidget(QWidget* parent)
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    : QSvgWidget(parent)
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{
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    Q_ASSERT(parent);
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    setObjectName("squareSvgWidget");
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}
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bool SquareSvgWidget::hasHeightForWidth() const
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{
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    return true;
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}
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int SquareSvgWidget::heightForWidth(int width) const
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{
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    return width;
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}
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// The overridden logic allows to keep the SVG image as square and centered by width and height.
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void SquareSvgWidget::resizeEvent(QResizeEvent*)
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{
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    QWidget* pWidget = parentWidget();
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    Q_ASSERT(pWidget);
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    if (pWidget) {
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        auto containerRect = pWidget->contentsRect();
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        auto containerWidth = containerRect.width();
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        auto containerHeight = containerRect.height();
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        auto squareSize = qMin(containerWidth, containerHeight);
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        auto halfSquareSize = squareSize >> 1;
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        auto startX = (containerWidth >> 1) - halfSquareSize;
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        auto startY = (containerHeight >> 1) - halfSquareSize;
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        setGeometry(startX, startY, squareSize, squareSize);
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    }
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}
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