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/*
* vim: ts=4 sw=4 et tw=0 wm=0
*
* libavoid - Fast, Incremental, Object-avoiding Line Router
* Copyright (C) 2004-2007 Michael Wybrow <mjwybrow@users.sourceforge.net>
* Copyright (C) 2009 Monash University
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* See the file LICENSE.LGPL distributed with the library.
*
* Licensees holding a valid commercial license may use this file in
* accordance with the commercial license agreement provided with the
* library.
*
* 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.
*
* Author(s): Michael Wybrow <mjwybrow@users.sourceforge.net>
*/
#include "libavoid/libavoid.h"
static void connCallback(void *ptr)
{
Avoid::ConnRef *connRef = (Avoid::ConnRef *) ptr;
printf("Connector %u needs rerouting!\n", connRef->id());
const Avoid::PolyLine& route = connRef->route();
printf("New path: ");
for (size_t i = 0; i < route.ps.size(); ++i)
{
printf("%s(%f, %f)", (i > 0) ? "-" : "",
route.ps[i].x, route.ps[i].y);
}
printf("\n");
}
int main(void)
{
Avoid::Router *router = new Avoid::Router(Avoid::PolyLineRouting);
router->setTransactionUse(false);
printf("\nCreate connector.\n");
Avoid::Point srcPt(1.2, 0.5);
Avoid::Point dstPt(1.5, 4);
Avoid::ConnRef *connRef = new Avoid::ConnRef(router);
connRef->setCallback(connCallback, connRef);
// Force inital callback:
router->processTransaction();
Avoid::ConnRef *connRef2 = new Avoid::ConnRef(router);
connRef2->setCallback(connCallback, connRef2);
router->processTransaction();
router->deleteConnector(connRef2);
connRef2 = nullptr;
router->processTransaction();
printf("\nAdd endpoints.\n");
connRef->setEndpoints(srcPt, dstPt);
router->processTransaction();
printf("\nAdding a shape.\n");
// Create the ShapeRef:
Avoid::Polygon shapePoly(3);
shapePoly.ps[0] = Avoid::Point(1, 1);
shapePoly.ps[1] = Avoid::Point(2.5, 1.5);
shapePoly.ps[2] = Avoid::Point(1.5, 2.5);
Avoid::ShapeRef *shapeRef = new Avoid::ShapeRef(router, shapePoly);
router->processTransaction();
printf("\nShifting endpoint.\n");
Avoid::Point dstPt2(6, 4.5);
connRef->setDestEndpoint(dstPt2);
// It's expected you know the connector needs rerouting, so the callback
// isn't called. You can force it to be called though, via:
router->processTransaction();
printf("\nMoving shape right by 0.5.\n");
router->moveShape(shapeRef, 0.5, 0);
router->processTransaction();
delete router;
return 0;
}
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