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//-----------------------------------------------------------------------------
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// This file is part of Toolkit for Conceptual Modeling (TCM).
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// (c) copyright 1995, Vrije Universiteit Amsterdam.
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// Author: Frank Dehne (frank@cs.vu.nl).
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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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// 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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// 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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//-----------------------------------------------------------------------------
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/// (abstract) undo-able command class.
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/*@Doc: {\large {\bf scope:} editor} */
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Command(Document *d, Viewer *v);
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enum TrackType {TRACK_PRESS, TRACK_DRAG, TRACK_RELEASE, TRACK_UP};
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/// Called while mouse button is pressed dragged and released.
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virtual void TrackMouse(TrackType, Point*, Point*, Point*) {}
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/// Perform the command.
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virtual void Execute();
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virtual void UnExecute();
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virtual void ReExecute() {Execute();}
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/// Abort the command.
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/// command is executed.
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bool CmdDone() const {return cmdDone;}
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virtual const char *GetName() const {return "unknown command";}
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double ScaleCorrect(double x) const {return viewer->ScaleCorrect(x);}
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Point ScaleCorrect(const Point *pt) const {
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return viewer->ScaleCorrect(pt);}
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double Scale(double x) const {return viewer->Scale(x);}
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Point Scale(const Point *pt) const {return viewer->Scale(pt);}
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DrawWindow *GetMainWindow() const {return mainwindow;}
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Viewer *GetViewer() const {return viewer;}
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Document *GetDocument() const {return document;}
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Grafport *GetGrafport() const {return grafport;}
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void SetCmdDone(bool b) {cmdDone=b;}
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DrawWindow *mainwindow;