KGanttRelation.h

#ifndef _KGANTTRELATION_H_
#define _KGANTTRELATION_H_
 
/*
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 
    author  : jh, jochen@ifb.bv.tu-berlin.de
 
    file    : KGanttRelation.h
    date    : 17.02.2001
 
    changelog :
 
*/
 
 
#include <tqobject.h>
#include <tqdatetime.h> 
#include <tqtextstream.h> 
#include <tqptrlist.h> 
#include <tqpainter.h>
 
 
class KGanttItem;
 
 
 
class KGanttRelation : public TQObject
{
 
  TQ_OBJECT
  
 
  friend class KGanttItem;
 
public:
 
  enum Change { 
 
    NoChange        = 0,
    TextChanged     = 32,
 
    Selected        = 2048,
    
    Unselected      = 4096
  };
 
 
 
 
  /*
   *    Emits signal destroyed(KGanttRelation* this).
   */
  ~KGanttRelation();
  
 
 
 
 
  void select(bool f);
 
 
 
  void setEditable(bool f) {
    _editable = f;
  }
 
 
 
 
  bool isEditable() {
    return _editable;
  }
 
 
 
 
  TQPen& getSelectPen() {
    return _selectPen;
  }
 
 
 
 
  void setPen(const TQPen& pen);
 
 
 
 
  TQPen& getPen() {
    return _pen;
  }
 
 
 
 
  void setTextPen(const TQPen& pen) {
    _textPen = pen;
  }
 
 
 
 
  TQPen& getTextPen() {
    return _textPen;
  }
 
 
 
 
  void setText(const TQString& text);
 
 
 
 
  TQString getText() { return _text; }
  
 
 
 
  KGanttItem* getFrom();
 
 
 
 
  KGanttItem* getTo();
 
 
 
 
  void dump(TQTextOStream& cout, const TQString& pre);
 
 
  TQString ChangeAsString(Change c);
 
 
signals:
 
 
  void changed(KGanttRelation*, KGanttRelation::Change);
 
 
 
 
  void destroyed(KGanttRelation*);
 
 
public slots:
 
  void itemDestroyed(KGanttItem* item);
 
 
protected:
 
 
  KGanttRelation(KGanttItem* from, KGanttItem* to,
         const TQString& text );
 
 
private:
 
 
  bool _selected;
 
  bool _editable;
 
  KGanttItem* _from;
  KGanttItem* _to;
  
  TQString _text;
 
  TQPen _pen, _textPen;
  
  static TQPen _selectPen;
 
};
 
#endif