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sdrangel/sdrgui/gui/scaledimage.h

51 lines
2.2 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// Copyright (C) 2015-2019 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
// Copyright (C) 2021 Jon Beniston, M7RCE <jon@beniston.com> //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef SDRGUI_GUI_SCALEDIMAGE_H
#define SDRGUI_GUI_SCALEDIMAGE_H
#include <QLabel>
#include <QPixmap>
#include <QSize>
#include <QResizeEvent>
#include "export.h"
// Similar to displaying a pixmap with QLabel, except we preserve the aspect ratio
class SDRGUI_API ScaledImage : public QLabel {
public:
explicit ScaledImage(QWidget *parent = nullptr);
void setPixmap(const QPixmap& pixmap);
void setPixmap(const QPixmap& pixmap, const QSize& size);
protected:
virtual void resizeEvent(QResizeEvent *event);
private:
QPixmap m_pixmap;
QPixmap m_pixmapScaled;
};
#endif // SDRGUI_GUI_SCALEDIMAGE_H