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Viewing changes to src/sd/bv/scdandline.c

  • Committer: Bazaar Package Importer
  • Author(s): Otavio Salvador
  • Date: 2003-07-03 20:08:21 UTC
  • Revision ID: james.westby@ubuntu.com-20030703200821-se4xtqx25e5miczi
Tags: upstream-2.20
Import upstream version 2.20

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src/sd/bv/scdandline.c
 
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////////////////////////////////////////////////////////////////////////////////
 
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//
 
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// This file is part of Toolkit for Conceptual Modeling (TCM).
 
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// (c) copyright 2002, Universiteit Twente.
 
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// Author: David N. Jansen (dnjansen@cs.utwente.nl).
 
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//
 
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// TCM is free software; you can redistribute it and/or modify
 
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// it under the terms of the GNU General Public License as published by
 
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// the Free Software Foundation; either version 2 of the License, or 
 
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// (at your option) any later version.
 
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//
 
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// TCM is distributed in the hope that it will be useful,
 
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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// GNU General Public License for more details.
 
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//
 
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// You should have received a copy of the GNU General Public License
 
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// along with TCM; if not, write to the Free Software
 
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 
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// 02111-1307, USA.
 
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////////////////////////////////////////////////////////////////////////////////
 
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#include "scdandline.h"
 
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#include "nodeshape.h"
 
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SCDAndLine::SCDAndLine(ShapeView *v, Grafport *g, GShape *node1,
 
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                List<Point *> *aline, bool Curved)
 
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:
 
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        Line(v, g, node1, node1, aline, Curved)
 
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{
 
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        CalcEndPoints();
 
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        CalcPosition();
 
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        SetEnd2(LineEnd::FILLED_ARROW);
 
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}
 
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SCDAndLine::SCDAndLine(ShapeView *v, Grafport *g, GShape *node1, bool Curved)
 
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:
 
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        Line(v, g, node1, node1, Curved)
 
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{
 
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        if ( node1 )
 
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                CalcEndPoints();
 
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        SetEnd2(LineEnd::FILLED_ARROW);
 
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}
 
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SCDAndLine::~SCDAndLine() {
 
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}
 
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/* virtual */ void SCDAndLine::CalcEndPoints() {
 
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        Line::CalcEndPoints();
 
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//      // ... but end points have to be on the child area's border instead of
 
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//      // the (outer) boundary.
 
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//      NodeShape *shape = dynamic_cast<NodeShape *>(GetFromShape());
 
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//      if ( ! shape )
 
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//              return;
 
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//      List<Point *> *lin = GetLine();
 
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//      int len = lin->count();
 
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//
 
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//      // The code below is copied and adapted from NodeShape::GiveOrthoSnp()
 
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//      // and ShapeType::GiveOrthoSnp().
 
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//      const Point *to = (*lin)[1], *pos = shape->GetPosition();
 
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//      DPoint p1(shape->GetShapeType()->GetChildArea()->GiveOrthoSnp(
 
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//      //                               ^^^^^^^^^^^^^^
 
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//              to->x - pos->x, to->y - pos->y,
 
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//              shape->GetWidth(), shape->GetHeight(),
 
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//              shape->GetName()->GetStringWidth(),
 
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//              shape->GetName()->GetStringHeight()));
 
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//      p1.x += pos->x;
 
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//      p1.y += pos->y;
 
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//
 
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//      const Point *from = (*lin)[len-2];
 
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//      DPoint p2(shape->GetShapeType()->GetChildArea()->GiveOrthoSnp(
 
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//      //                               ^^^^^^^^^^^^^^
 
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//              from->x - pos->x, from->y - pos->y,
 
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//              shape->GetWidth(), shape->GetHeight(),
 
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//              shape->GetName()->GetStringWidth(),
 
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//              shape->GetName()->GetStringHeight()));
 
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//      p2.x += pos->x;
 
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//      p2.y += pos->y;
 
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//
 
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//      (*lin)[0]->Set(int(0.5 + p1.x), int(0.5 + p1.y));
 
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//      (*lin)[len-1]->Set(int(0.5 + p2.x), int(0.5 + p2.y));
 
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//
 
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//      /// maybe one also wants to set the points (*line)[1] and (*line)[len-2]
 
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//      /// if len > 3.
 
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}
 
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/* virtual */ void SCDAndLine::CalcPosition() {
 
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        // line points have to lie in the child area of the corresponding shape.
 
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        Line::CalcPosition();
 
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        NodeShape *shape = dynamic_cast<NodeShape *>(GetFromShape());
 
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        if ( ! shape )
 
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                return;
 
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        List <Point *> *lin = GetLine();
 
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        const Polygon *ca = shape->GetShapeType()->GetChildArea();
 
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        const Point *pos = shape->GetPosition();
 
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        for ( int i = lin->count() ; --i >= 0 ; ) {
 
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                Point to = *(*lin)[i];
 
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                to -= *pos;
 
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                if ( ! ca->IsInside(to.x, to.y,
 
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                                shape->GetWidth(), shape->GetHeight(),
 
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                                shape->GetName()->GetStringWidth(),
 
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                                shape->GetName()->GetStringHeight()) ) {
 
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                        DPoint p(ca->GiveOrthoSnp(to.x, to.y,
 
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                                        shape->GetWidth(), shape->GetHeight(),
 
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                                        shape->GetName()->GetStringWidth(),
 
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                                        shape->GetName()->GetStringHeight()));
 
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                        p.x += pos->x;
 
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                        p.y += pos->y;
 
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                        (*lin)[i]->Set(int(0.5 + p.x), int(0.5 + p.y));
 
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                }
 
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        }
 
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}