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#8859 AppFwk : Enable TableView as optional drop target

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A TableView can receive drag/drop data. The drop operations finds the PdmObject for a row, and delegates handling of the drop operation to this object.
This commit is contained in:
Magne Sjaastad 2022-04-30 15:18:52 +02:00
parent 4ef1f73a58
commit feb1c417c5
5 changed files with 88 additions and 1 deletions
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5
Fwk/AppFwk/cafProjectDataModel/cafPdmCore/cafPdmObjectHandle.h
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@ -9,6 +9,8 @@
#include <set>
#include <vector>
class QMimeData;
namespace caf
{
class PdmObjectCapability;
@ -106,6 +108,9 @@ public:
virtual void onChildAdded( caf::PdmFieldHandle* containerForNewObject ){};
virtual void
handleDroppedMimeData( const QMimeData* data, Qt::DropAction action, caf::PdmFieldHandle* destinationField ){};
protected:
void addField( PdmFieldHandle* field, const QString& keyword );

5
Fwk/AppFwk/cafUserInterface/cafPdmUiTableViewEditor.cpp
View File

@ -164,6 +164,11 @@ void PdmUiTableViewEditor::configureAndUpdateUi( const QString& uiConfigName )
QPalette myPalette( m_tableView->palette() );
myPalette.setColor( QPalette::Base, editorAttrib.baseColor );
m_tableView->setPalette( myPalette );
// Drop target settings
m_tableView->setAcceptDrops( editorAttrib.enableDropTarget );
m_tableView->setDropIndicatorShown( editorAttrib.enableDropTarget );
m_tableModelPdm->enableDropTarget( editorAttrib.enableDropTarget );
}
m_tableModelPdm->setArrayFieldAndBuildEditors( childArrayFH, uiConfigName );

2
Fwk/AppFwk/cafUserInterface/cafPdmUiTableViewEditor.h
View File

@ -92,6 +92,7 @@ public:
, minimumHeight( -1 )
, alwaysEnforceResizePolicy( false )
, resizePolicy( NO_AUTOMATIC_RESIZE )
, enableDropTarget( false )
{
QPalette myPalette;
baseColor = myPalette.color( QPalette::Active, QPalette::Base );
@ -106,6 +107,7 @@ public:
QColor baseColor;
bool alwaysEnforceResizePolicy;
ResizePolicy resizePolicy;
bool enableDropTarget;
};
//--------------------------------------------------------------------------------------------------

66
Fwk/AppFwk/cafUserInterface/cafPdmUiTableViewQModel.cpp
View File

@ -57,8 +57,9 @@ namespace caf
//--------------------------------------------------------------------------------------------------
PdmUiTableViewQModel::PdmUiTableViewQModel( QWidget* parent )
: QAbstractTableModel( parent )
, m_pdmList( nullptr )
, m_dropTargetEnabled( false )
{
m_pdmList = nullptr;
}
//--------------------------------------------------------------------------------------------------
@ -141,6 +142,12 @@ Qt::ItemFlags PdmUiTableViewQModel::flags( const QModelIndex& index ) const
}
}
}
if ( m_dropTargetEnabled )
{
flagMask |= Qt::ItemIsDropEnabled;
}
return flagMask;
}
@ -661,6 +668,63 @@ void PdmUiTableViewQModel::createPersistentPushButtonWidgets( QTableView* tableV
}
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void PdmUiTableViewQModel::enableDropTarget( bool enable )
{
m_dropTargetEnabled = enable;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
bool PdmUiTableViewQModel::dropMimeData( const QMimeData* data,
Qt::DropAction action,
int row,
int column,
const QModelIndex& parent )
{
// The receiving model index is specified by the parent. Find object and field from parent, and send QMimeData to
// this object
if ( !m_dropTargetEnabled ) return false;
auto pdmObject = pdmObjectForRow( parent.row() );
auto field = getField( parent );
if ( pdmObject )
{
pdmObject->handleDroppedMimeData( data, action, field );
return true;
}
return false;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
Qt::DropActions PdmUiTableViewQModel::supportedDropActions() const
{
return Qt::CopyAction | Qt::MoveAction | Qt::LinkAction;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
bool PdmUiTableViewQModel::canDropMimeData( const QMimeData* data,
Qt::DropAction action,
int row,
int column,
const QModelIndex& parent ) const
{
// This function can be extended to validate incoming QMimeData and see if this data is matching with the drop
// target. For now, all data is allowed to be dropped when drop target is enabled
return m_dropTargetEnabled;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------

11
Fwk/AppFwk/cafUserInterface/cafPdmUiTableViewQModel.h
View File

@ -100,6 +100,16 @@ public:
bool isRepresentingBoolean( const QModelIndex& index ) const;
void createPersistentPushButtonWidgets( QTableView* tableView );
void enableDropTarget( bool enable );
protected:
bool dropMimeData( const QMimeData* data, Qt::DropAction action, int row, int column, const QModelIndex& parent ) override;
Qt::DropActions supportedDropActions() const override;
bool canDropMimeData( const QMimeData* data,
Qt::DropAction action,
int row,
int column,
const QModelIndex& parent ) const override;
private:
int getFieldIndex( PdmFieldHandle* field ) const;
@ -117,6 +127,7 @@ private:
PdmPointer<PdmObjectHandle> m_ownerObject;
PdmChildArrayFieldHandle* m_pdmList;
QString m_currentConfigName;
bool m_dropTargetEnabled;
std::map<QString, PdmUiFieldEditorHandle*> m_fieldEditors;
std::vector<int> m_modelColumnIndexToFieldIndex;