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Viewing changes to src/sd/bv/scviewer.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/scviewer.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, Enschede.
 
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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 "scwindow.h"
 
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#include "scviewer.h"
 
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#include "sizeshapebordercmd.h"
 
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#include "scdcreateandlinecmd.h"
 
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#include "code.h"
 
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#include "nodeshape.h"
 
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#include "line.h"
 
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SCViewer::SCViewer(Config *c, SCWindow *d): DiagramViewer(c, d) { }
 
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/* virtual */ Command *SCViewer::Connect(int x, int y) {
 
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        GShape *shape;
 
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        x = int(0.5 + ScaleCorrect(x));
 
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        y = int(0.5 + ScaleCorrect(y));
 
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        int w;
 
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        // look for shape.
 
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        if (Toolkit::EditorWithInterEdgeConnections(
 
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                        GetMainWindow()->GetTool())) { 
 
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                if ((shape = GetCurView()->HitShape(x, y))) {
 
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                        if ( shape->IsNodeShape() && shape->IsSelected() && 
 
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                            (w = shape->HitHandles(x, y)) >= 0)
 
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                                return new SizeShapeBorderCmd(shape, w);
 
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                        else if ( shape->IsNodeShape() || (shape->IsLine() &&
 
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                                 !((Line*)shape)->IsCurved()) ) {
 
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                                if ( Code::SCD_AND_EDGE == GetDefaultEdgeType() )
 
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                                        return new SCDCreateAndLineCmd(shape);
 
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                                return new CreateEdgeCmd(shape);
 
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                        }
 
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                }
 
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        } else if ((shape = GetCurView()->HitNodeShape(x, y))) {
 
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                if (shape->IsSelected() && (w = shape->HitHandles(x, y)) >= 0)
 
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                        return new SizeShapeBorderCmd(shape, w);
 
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                else if ( Code::SCD_AND_EDGE == GetDefaultEdgeType() )
 
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                        return new SCDCreateAndLineCmd(shape);
 
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                return new CreateEdgeCmd(shape);
 
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        }
 
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        return 0;
 
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}