File: ParameterCanvas.h

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// *************************************************************************
//
// Copyright 2004-2010 Bruno PAGES  .
//
// This file is part of the BOUML Uml Toolkit.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// e-mail : bouml@free.fr
// home   : http://bouml.free.fr
//
// *************************************************************************

#ifndef PARAMETERCANVAS_H
#define PARAMETERCANVAS_H

#include "DiagramCanvas.h"

class ActivityCanvas;
class LabelCanvas;

#define PARAMETER_CANVAS_MIN_WIDTH 39
#define PARAMETER_CANVAS_MIN_HEIGHT 25

class ParameterCanvas : public QObject, public DiagramCanvas {
  Q_OBJECT
    
  protected:
    ActivityCanvas * act;
    UmlColor itscolor;
    UmlColor used_color;
        
  public:
    ParameterCanvas(BrowserNode * bn, UmlCanvas * canvas, int x, int y,
		    int id, ActivityCanvas * a);
    virtual ~ParameterCanvas();
    
    virtual void delete_it();
    
    void update();
    void check_position();

    virtual void draw(QPainter & p);
    
    virtual UmlCode type() const;
    virtual bool copyable() const;
    virtual void open();
    virtual void menu(const QPoint&);
    virtual QString may_start(UmlCode &) const;
    virtual QString may_connect(UmlCode & l, const DiagramItem * dest) const;
    virtual void connexion(UmlCode, DiagramItem *, const QPoint &, const QPoint &);
    virtual aCorner on_resize_point(const QPoint & p);
    virtual void resize(aCorner c, int dx, int dy, QPoint &);
    virtual void resize(const QSize & sz, bool w, bool h);
    virtual void change_scale();
    virtual void moveBy(double dx, double dy);
    virtual bool primaryItem() const;
    void do_moveBy(double dx, double dy);
    void do_change_scale();
    
    bool activity_selected() const;
    
    virtual bool has_drawing_settings() const;
    virtual void edit_drawing_settings(QList<DiagramItem> &);
    virtual void same_drawing_settings(QList<DiagramItem> &);
    void edit_drawing_settings();
   
    virtual void apply_shortcut(QString s);
  
    virtual void save(QTextStream &, bool ref, QString & warning) const;
    static ParameterCanvas * read(char * &, UmlCanvas *, char *, ActivityCanvas *);
    virtual void post_loaded();
    
    virtual void history_save(QBuffer &) const;
    virtual void history_load(QBuffer &);
    virtual void history_hide();
    
  private slots:
    void modified();	// canvas must be updated
    void deleted();
};

#endif