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#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;
/// KGanttRelation.
/*!
* This class describes a item. It contains dates on which the item starts and
* ends. It also contains attributes that gouverns the graphical representation
* in a gantt diagramm.
*/
//////////////////////////////////
class KGanttRelation : public TQObject
//////////////////////////////////
{
Q_OBJECT
TQ_OBJECT
friend class KGanttItem;
public:
enum Change {
NoChange = 0,
TextChanged = 32,
/// Item has been selected.
Selected = 2048,
/// Item has been unselected.
Unselected = 4096
};
/// Destructor.
/*
* Emits signal destroyed(KGanttRelation* this).
*/
~KGanttRelation();
/// Select/unselect item.
/*!
*
*/
void select(bool f);
/// Set item editable or not.
/*!
* If item is not editable these methods have no effect :
* setStart(), setEnd(), setText(), select(), setMode(), setStyle(),
* setHeight(),
*
*/
void setEditable(bool f) {
_editable = f;
}
/// Returns if item is editable.
/*!
* See also setEditable().
*/
bool isEditable() {
return _editable;
}
/// Get brush which has to be used for drawing this item as selected.
/*!
*
*/
TQPen& getSelectPen() {
return _selectPen;
}
/// Set pen for border.
/*!
*
*/
void setPen(const TQPen& pen);
///
/*!
*
*/
TQPen& getPen() {
return _pen;
}
///
/*!
*
*/
void setTextPen(const TQPen& pen) {
_textPen = pen;
}
///
/*!
*
*/
TQPen& getTextPen() {
return _textPen;
}
/// Set text.
/*!
*
*/
void setText(const TQString& text);
/// Get text.
/*!
*
*/
TQString getText() { return _text; }
/// Get date of starting.
/*!
* If mode == ´Rubberband´ and this item contains
* subitems, start of the item is determined by the start of the
* earliest subitem. <br>
*/
KGanttItem* getFrom();
/// Get date of ending.
/*!
*
*/
KGanttItem* getTo();
/// Dump to cout.
/*!
*
*/
void dump(TQTextOStream& cout, const TQString& pre);
TQString ChangeAsString(Change c);
signals:
/// Item has changed.
/*!
* This signal is emitted if any of the items
* properties have been changed.
*/
void changed(KGanttRelation*, KGanttRelation::Change);
/// Item will be deleted.
/*!
* This signal will be emitted immediately before
* the object will be deleted.
*/
void destroyed(KGanttRelation*);
public slots:
void itemDestroyed(KGanttItem* item);
protected:
/// Constructor.
/*!
*
*/
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
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