|
|
#ifndef SCIQLOP_DRAGDROPHELPER_H
|
|
|
#define SCIQLOP_DRAGDROPHELPER_H
|
|
|
|
|
|
#include <Common/spimpl.h>
|
|
|
#include <QLoggingCategory>
|
|
|
#include <QWidget>
|
|
|
|
|
|
class QVBoxLayout;
|
|
|
class QScrollArea;
|
|
|
class QTabBar;
|
|
|
class VisualizationDragWidget;
|
|
|
class VisualizationDragDropContainer;
|
|
|
class QMimeData;
|
|
|
|
|
|
Q_DECLARE_LOGGING_CATEGORY(LOG_DragDropHelper)
|
|
|
|
|
|
/**
|
|
|
* @brief Helper class for drag&drop operations.
|
|
|
* @note The helper is accessible from the sqpApp singleton and has the same life as the whole
|
|
|
* application (like a controller). But contrary to a controller, it doesn't live in a thread and
|
|
|
* can interect with the gui.
|
|
|
* @see SqpApplication
|
|
|
*/
|
|
|
class DragDropHelper {
|
|
|
public:
|
|
|
static const QString MIME_TYPE_GRAPH;
|
|
|
static const QString MIME_TYPE_ZONE;
|
|
|
|
|
|
enum class PlaceHolderType { Default, Graph, Zone };
|
|
|
|
|
|
DragDropHelper();
|
|
|
virtual ~DragDropHelper();
|
|
|
|
|
|
/// Resets some internal variables. Must be called before any new drag&drop operation.
|
|
|
void resetDragAndDrop();
|
|
|
|
|
|
/// Sets the visualization widget currently being drag on the visualization.
|
|
|
void setCurrentDragWidget(VisualizationDragWidget *dragWidget);
|
|
|
|
|
|
/// Returns the visualization widget currently being drag on the visualization.
|
|
|
/// Can be null if a new visualization widget is intended to be created by the drag&drop
|
|
|
/// operation.
|
|
|
VisualizationDragWidget *getCurrentDragWidget() const;
|
|
|
|
|
|
QWidget &placeHolder() const;
|
|
|
void insertPlaceHolder(QVBoxLayout *layout, int index, PlaceHolderType type,
|
|
|
const QString &topLabelText);
|
|
|
void removePlaceHolder();
|
|
|
bool isPlaceHolderSet() const;
|
|
|
|
|
|
/// Checks if the specified mime data is valid for a drop in the visualization
|
|
|
bool checkMimeDataForVisualization(const QMimeData *mimeData,
|
|
|
VisualizationDragDropContainer *dropContainer);
|
|
|
|
|
|
void addDragDropScrollArea(QScrollArea *scrollArea);
|
|
|
void removeDragDropScrollArea(QScrollArea *scrollArea);
|
|
|
|
|
|
void addDragDropTabBar(QTabBar *tabBar);
|
|
|
void removeDragDropTabBar(QTabBar *tabBar);
|
|
|
|
|
|
QUrl imageTemporaryUrl(const QImage &image) const;
|
|
|
|
|
|
void setHightlightedDragWidget(VisualizationDragWidget *dragWidget);
|
|
|
VisualizationDragWidget *getHightlightedDragWidget() const;
|
|
|
|
|
|
/// Delays the closing of a widget during a drag&drop operation
|
|
|
void delayedCloseWidget(QWidget *widget);
|
|
|
void doCloseWidgets();
|
|
|
|
|
|
private:
|
|
|
class DragDropHelperPrivate;
|
|
|
spimpl::unique_impl_ptr<DragDropHelperPrivate> impl;
|
|
|
};
|
|
|
|
|
|
#endif // SCIQLOP_DRAGDROPHELPER_H
|
|
|
|
