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o3de/Code/Framework/AzQtComponents/AzQtComponents/Components/ExtendedLabel.h

59 lines
1.6 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#pragma once
#if !defined(Q_MOC_RUN)
#include <AzCore/PlatformDef.h>
AZ_PUSH_DISABLE_WARNING(4251 4244 4800, "-Wunknown-warning-option") // 4251: class 'QScopedPointer<QBrushData,QBrushDataPointerDeleter>' needs to have dll-interface to be used by clients of class 'QBrush'
// 4800: 'uint': forcing value to bool 'true' or 'false' (performance warning)
#include <QLabel>
AZ_POP_DISABLE_WARNING
#include <AzQtComponents/AzQtComponentsAPI.h>
#endif
//! An improved QLabel control with better QPixmap resize functionality and click signal
/*!
ExtendedLabel allows to automatically downscale its QPixmap
while preserving image's aspect ratio. The maximum QPixmap size is set
to the minimum of [QLabel size] OR [maxPixMapWidth and maxPixMapHeight values].
*/
namespace AzQtComponents
{
class AZ_QT_COMPONENTS_API ExtendedLabel
: public QLabel
{
Q_OBJECT
public:
explicit ExtendedLabel(QWidget* parent = nullptr);
int heightForWidth(int width) const override;
public Q_SLOTS:
void setPixmap(const QPixmap& p);
void resizeEvent(QResizeEvent* event) override;
Q_SIGNALS:
void clicked();
protected:
void mousePressEvent(QMouseEvent* event) override;
private:
QPixmap m_pix;
QSize m_pixmapSize;
void rescale();
static double aspectRatio(int w, int h);
};
}