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qdbtselection.h

#ifndef _QDBTSELECTION_H
#define _QDBTSELECTION_H

#include <qobject.h>
#include <qvaluelist.h>

#include <qdbt/qdbtglobal.h>

class QdbtBaseTabular;
class QKeyEvent;
class QMouseEvent;
class QdbtPImpl;

class QDBT_EXPORT QdbtSelection : public QObject
{
  Q_OBJECT
  
  QdbtSelection( const QdbtSelection & );
  void operator=( const QdbtSelection & );

  QdbtPImpl *_pimpl;

public:
  virtual ~QdbtSelection();

  enum change_t
  {
    SINGLE_ROW_INSERT,
    SINGLE_ROW_DELETE,
    SINGLE_COL_INSERT,
    SINGLE_COL_DELETE,
    DIMENSION_SET
  };

  virtual bool cellSelected( int row, int col ) = 0;
  virtual bool cellSelectable( int row, int col ) = 0;
  virtual void setCellSelected( int row, int col, bool sel ) = 0;
  virtual void setCellSelectable( int row, int col, bool sel ) = 0;
  virtual void setSelection( bool state );
  virtual void tableChanged( change_t op, int row, int col );
  virtual void keyEvent( QKeyEvent &, int row, int col );
  virtual void mouseEvent( QMouseEvent &, int row, int col );
  virtual void dump();
  
signals:
  void signalCellSelected( int, int, bool );
  void signalRowSelected( int, bool );
  
protected:
  QdbtSelection( QdbtBaseTabular *t );
  void repaintCell( int row, int col );
  QdbtBaseTabular *context() const;

private slots:
  void slotCheckCellSelect( int, int, bool );
  void slotCheckRowSelect( int, bool );
  
};

class QDBT_EXPORT QdbtSingleCellSelection : public QdbtSelection
{
  Q_OBJECT

  typedef QValueList< bool > row_t;
  QValueList< row_t > _selectable;
  int  _rows;
  int  _cols;
  int  _rowSelected, _colSelected;
  
public:
  QdbtSingleCellSelection( QdbtBaseTabular * );
  virtual ~QdbtSingleCellSelection();

  virtual bool cellSelected( int row, int col );
  virtual bool cellSelectable( int row, int col );
  virtual void setCellSelected( int row, int col, bool sel );
  virtual void setCellSelectable( int row, int col, bool sel );

  virtual void tableChanged( change_t op, int row, int col );
  virtual void keyEvent( QKeyEvent &, int row, int col );
  virtual void mouseEvent( QMouseEvent &, int row, int col );

};

class QDBT_EXPORT QdbtCellSelection : public QdbtSelection
{
  Q_OBJECT

  typedef QValueList< bool > row_t;
  QValueList< row_t > _selection, _selectable;
  int  _rows;
  int  _cols;
  int  _dragStartRow, _dragStartCol;
  bool _selectionForDrag;
  
public:
  QdbtCellSelection( QdbtBaseTabular * );
  virtual ~QdbtCellSelection();

  virtual bool cellSelected( int row, int col );
  virtual bool cellSelectable( int row, int col );
  virtual void setCellSelected( int row, int col, bool sel );
  virtual void setCellSelectable( int row, int col, bool sel );

  virtual void tableChanged( change_t op, int row, int col );
  virtual void keyEvent( QKeyEvent &, int row, int col );
  virtual void mouseEvent( QMouseEvent &, int row, int col );

};

class QDBT_EXPORT QdbtRowSelection : public QdbtSelection
{
  Q_OBJECT

  QValueList< bool > _selection;
  QValueList< bool > _selectable;
  int  _rows;
  int  _dragStart;
  bool _selectionForDrag;
public:
  QdbtRowSelection( QdbtBaseTabular * );
  virtual ~QdbtRowSelection();

  virtual bool cellSelected( int row, int col );
  virtual bool cellSelectable( int row, int col );
  virtual void setCellSelected( int row, int col, bool sel );
  virtual void setCellSelectable( int row, int col, bool sel );

  virtual void tableChanged( change_t op, int row, int col );
  virtual void keyEvent( QKeyEvent &, int row, int col );
  virtual void mouseEvent( QMouseEvent &, int row, int col );
protected:
  virtual void dump();

  bool rowSelection( int row ) const;
  bool rowSelectable( int row ) const;
  void setRowSelection( int row, bool selection );
  void setRowSelectable( int row, bool selection );
  void toggleRowSelection( int row );

};

class QDBT_EXPORT QdbtSingleRowSelection : public QdbtSelection
{
  Q_OBJECT

  int  _currentSelection;
  int  _rows;
  QValueList< bool > _selectable;
public:
  QdbtSingleRowSelection( QdbtBaseTabular * );
  virtual ~QdbtSingleRowSelection();

  virtual bool cellSelected( int row, int col );
  virtual bool cellSelectable( int row, int col );
  virtual void setCellSelected( int row, int col, bool sel );
  virtual void setCellSelectable( int row, int col, bool sel );

  virtual void tableChanged( change_t op, int row, int col );
  virtual void keyEvent( QKeyEvent &, int row, int col );
  virtual void mouseEvent( QMouseEvent &, int row, int col );
protected:
  virtual void dump();

  bool rowSelection( int row ) const;
  bool rowSelectable( int row ) const;
  int rowSelected() const;
  void setRowSelection( int row, bool selection );
  void setRowSelection( int row, bool selection, bool force );
  void setRowSelectable( int row, bool selection );

};



#endif

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