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#ifndef SCIQLOP_VISUALIZATIONDRAGDROPCONTAINER_H
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#define SCIQLOP_VISUALIZATIONDRAGDROPCONTAINER_H
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#include <Common/spimpl.h>
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#include <QFrame>
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#include <QLoggingCategory>
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#include <QMimeData>
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#include <QVBoxLayout>
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#include <functional>
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#include <DragAndDrop/DragDropHelper.h>
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Q_DECLARE_LOGGING_CATEGORY(LOG_VisualizationDragDropContainer)
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class VisualizationDragWidget;
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class VisualizationDragDropContainer : public QFrame {
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Q_OBJECT
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signals:
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void dropOccuredInContainer(int dropIndex, const QMimeData *mimeData);
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void dropOccuredOnWidget(VisualizationDragWidget *dragWidget, const QMimeData *mimeData);
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public:
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enum class DropBehavior { Inserted, Merged, InsertedAndMerged, Forbidden };
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using AcceptMimeDataFunction = std::function<bool(const QMimeData *mimeData)>;
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using AcceptDragWidgetFunction
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= std::function<bool(const VisualizationDragWidget *dragWidget, const QMimeData *mimeData)>;
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VisualizationDragDropContainer(QWidget *parent = nullptr);
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void addDragWidget(VisualizationDragWidget *dragWidget);
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void insertDragWidget(int index, VisualizationDragWidget *dragWidget);
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void setMimeType(const QString &mimeType, DropBehavior behavior);
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int countDragWidget() const;
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void setAcceptMimeDataFunction(AcceptMimeDataFunction fun);
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void setAcceptDragWidgetFunction(AcceptDragWidgetFunction fun);
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void setPlaceHolderType(DragDropHelper::PlaceHolderType type,
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const QString &placeHolderText = QString());
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protected:
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void dragEnterEvent(QDragEnterEvent *event);
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void dragLeaveEvent(QDragLeaveEvent *event);
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void dragMoveEvent(QDragMoveEvent *event);
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void dropEvent(QDropEvent *event);
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private:
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class VisualizationDragDropContainerPrivate;
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spimpl::unique_impl_ptr<VisualizationDragDropContainerPrivate> impl;
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private slots:
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void startDrag(VisualizationDragWidget *dragWidget, const QPoint &dragPosition);
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};
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#endif // SCIQLOP_VISUALIZATIONDRAGDROPCONTAINER_H
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