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(#467) Using subclassed treeview to notify the model about drag end

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Using new class PdmUiTreeViewWidget instead of QTreeView in
PdmUiTreeViewEditor. PdmUiTreeViewWidget handles drag leave events and
calls endDrag() on the model.
This commit is contained in:
Pål Hagen 2015-10-21 17:20:12 +02:00
parent b046ca0769
commit f4bbbcb7a2
5 changed files with 47 additions and 10 deletions
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1
Fwk/AppFwk/cafUserInterface/cafPdmUiDragDropHandle.h
View File

@ -57,6 +57,7 @@ public:
virtual bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) = 0;
virtual QMimeData* mimeData(const QModelIndexList &indexes) const = 0;
virtual QStringList mimeTypes() const = 0;
virtual void endDrag() = 0;
};
inline PdmUiDragDropHandle::~PdmUiDragDropHandle() { }

2
Fwk/AppFwk/cafUserInterface/cafPdmUiTreeViewEditor.cpp
View File

@ -86,7 +86,7 @@ QWidget* PdmUiTreeViewEditor::createWidget(QWidget* parent)
m_mainWidget->setLayout(m_layout);
m_treeViewModel = new caf::PdmUiTreeViewModel(this);
m_treeView = new QTreeView(m_mainWidget);
m_treeView = new PdmUiTreeViewWidget(m_mainWidget);
m_treeView->setModel(m_treeViewModel);
m_treeView->installEventFilter(this);

40
Fwk/AppFwk/cafUserInterface/cafPdmUiTreeViewEditor.h
View File

@ -39,11 +39,13 @@
#include "cafPdmUiTreeEditorHandle.h"
#include "cafPdmUiFieldEditorHandle.h"
#include "cafPdmUiTreeViewModel.h"
#include <QAbstractItemModel>
#include <QPointer>
#include <QWidget>
#include <QItemSelectionModel>
#include <QTreeView>
class MySortFilterProxyModel;
@ -75,7 +77,29 @@ public:
QStringList columnHeaders;
};
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
class PdmUiTreeViewWidget : public QTreeView
{
public:
PdmUiTreeViewWidget(QWidget* parent = 0) : QTreeView(parent) {};
virtual ~PdmUiTreeViewWidget() {};
protected:
virtual void dragLeaveEvent(QDragLeaveEvent* event)
{
caf::PdmUiTreeViewModel* treeViewModel = dynamic_cast<caf::PdmUiTreeViewModel*>(model());
if (treeViewModel)
{
treeViewModel->endDrag();
}
}
};
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
class PdmUiTreeViewEditor : public PdmUiTreeEditorHandle
{
Q_OBJECT
@ -126,17 +150,17 @@ private:
virtual bool eventFilter(QObject *obj, QEvent *event);
private:
QPointer<QWidget> m_mainWidget;
QVBoxLayout* m_layout;
QPointer<QWidget> m_mainWidget;
QVBoxLayout* m_layout;
QTreeView* m_treeView;
PdmUiTreeViewModel* m_treeViewModel;
PdmUiTreeViewWidget* m_treeView;
PdmUiTreeViewModel* m_treeViewModel;
PdmUiTreeViewEditorAttribute m_editorAttributes;
PdmUiTreeViewEditorAttribute m_editorAttributes;
bool m_useDefaultContextMenu;
bool m_updateSelectionManager;
bool m_appendClassNameToUiItemText;
bool m_useDefaultContextMenu;
bool m_updateSelectionManager;
bool m_appendClassNameToUiItemText;
};

11
Fwk/AppFwk/cafUserInterface/cafPdmUiTreeViewModel.cpp
View File

@ -794,6 +794,17 @@ void PdmUiTreeViewModel::setDragDropHandle(PdmUiDragDropHandle* dragDropHandle)
m_dragDropHandle = dragDropHandle;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void PdmUiTreeViewModel::endDrag()
{
if (m_dragDropHandle)
{
m_dragDropHandle->endDrag();
}
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------

3
Fwk/AppFwk/cafUserInterface/cafPdmUiTreeViewModel.h
View File

@ -74,7 +74,8 @@ public:
QModelIndex findModelIndex(const PdmUiItem* object) const;
void setDragDropHandle(PdmUiDragDropHandle* dragDropHandle);
void endDrag();
private:
void updateSubTreeRecursive(const QModelIndex& uiSubTreeRootModelIdx, PdmUiTreeOrdering* uiModelSubTreeRoot, PdmUiTreeOrdering* updatedPdmSubTreeRoot);