mirror of
https://gitlab.com/smart-pattern/valentina.git
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106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
/************************************************************************
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**
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** @file vaspectratiopixmaplabel.cpp
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** @author Roman Telezhynskyi <dismine(at)gmail.com>
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** @date 19 10, 2023
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**
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** @brief
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** @copyright
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** This source code is part of the Valentina project, a pattern making
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** program, whose allow create and modeling patterns of clothing.
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** Copyright (C) 2023 Valentina project
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** <https://gitlab.com/smart-pattern/valentina> All Rights Reserved.
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**
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** Valentina 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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**
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** Valentina 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 Valentina. If not, see <http://www.gnu.org/licenses/>.
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**
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*************************************************************************/
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#include "vaspectratiopixmaplabel.h"
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//---------------------------------------------------------------------------------------------------------------------
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VAspectRatioPixmapLabel::VAspectRatioPixmapLabel(QWidget *parent, Qt::WindowFlags f)
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: QLabel(parent, f)
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{
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setMinimumSize(1, 1);
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setScaledContents(false);
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}
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//---------------------------------------------------------------------------------------------------------------------
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VAspectRatioPixmapLabel::VAspectRatioPixmapLabel(const QString &text, QWidget *parent, Qt::WindowFlags f)
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: QLabel(text, parent, f)
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{
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setMinimumSize(1, 1);
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setScaledContents(false);
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAspectRatioPixmapLabel::setPixmap(const QPixmap &p)
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{
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m_pix = p;
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QLabel::setPixmap(ScaledPixmap());
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}
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//---------------------------------------------------------------------------------------------------------------------
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auto VAspectRatioPixmapLabel::heightForWidth(int width) const -> int
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{
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if (m_pix.isNull())
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{
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return QLabel::heightForWidth(width);
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}
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return static_cast<int>((static_cast<qreal>(m_pix.height()) * width) / m_pix.width());
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}
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//---------------------------------------------------------------------------------------------------------------------
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auto VAspectRatioPixmapLabel::sizeHint() const -> QSize
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{
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if (m_pix.isNull())
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{
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return QLabel::sizeHint();
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}
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int w = m_pix.width();
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return {w, heightForWidth(w)};
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}
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//---------------------------------------------------------------------------------------------------------------------
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auto VAspectRatioPixmapLabel::ScaledPixmap() const -> QPixmap
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{
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if (m_pix.isNull())
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{
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return m_pix;
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}
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auto scaled = m_pix.scaled(size() * devicePixelRatioF(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
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scaled.setDevicePixelRatio(devicePixelRatioF());
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return scaled;
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAspectRatioPixmapLabel::resizeEvent(QResizeEvent *e)
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{
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Q_UNUSED(e)
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if (!m_pix.isNull())
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{
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QLabel::setPixmap(ScaledPixmap());
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}
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}
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//---------------------------------------------------------------------------------------------------------------------
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void VAspectRatioPixmapLabel::mousePressEvent(QMouseEvent *event)
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{
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Q_UNUSED(event)
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emit clicked();
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}
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