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o3de/Code/Framework/AzToolsFramework/AzToolsFramework/Thumbnails/ThumbnailWidget.h
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2021-03-08 14:30:57 -08:00

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/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
#pragma once
#if !defined(Q_MOC_RUN)
#include <AzCore/PlatformDef.h>
#include <AzToolsFramework/Thumbnails/Thumbnail.h>
AZ_PUSH_DISABLE_WARNING(4251 4800, "-Wunknown-warning-option") // 4251: 'QBrush::d': 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 <QWidget>
#endif
AZ_POP_DISABLE_WARNING
namespace AzToolsFramework
{
namespace Thumbnailer
{
//! A widget used to display thumbnail. To display thumbnails within item views, use ThumbnailDelegate
class ThumbnailWidget
: public QWidget
{
Q_OBJECT
public:
explicit ThumbnailWidget(QWidget* parent = nullptr);
~ThumbnailWidget() override = default;
//! Call this to set what thumbnail widget will display
void SetThumbnailKey(SharedThumbnailKey key, const char* contextName = "Default");
//! Remove current thumbnail
void ClearThumbnail();
int heightForWidth(int w) const override;
QSize sizeHint() const override;
protected:
void paintEvent(QPaintEvent* event) override;
private:
SharedThumbnailKey m_key;
AZStd::string m_contextName;
private Q_SLOTS:
void KeyUpdatedSlot();
};
} // namespace Thumbnailer
} // namespace AzToolsFramework