CaRMtl/rene/zirkel/constructors/PlumbConstructor.java

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/*
Copyright 2006 Rene Grothmann, modified by Eric Hakenholz
This file is part of C.a.R. software.
C.a.R. is a 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, version 3 of the License.
C.a.R. 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, see <http://www.gnu.org/licenses/>.
*/
package rene.zirkel.constructors;
// file: PlumbConstructor.java
import rene.util.xml.XmlTag;
import rene.util.xml.XmlTree;
import rene.gui.Global;
import rene.zirkel.ZirkelCanvas;
import rene.zirkel.construction.Construction;
import rene.zirkel.construction.ConstructionException;
import rene.zirkel.objects.ConstructionObject;
import rene.zirkel.objects.PlumbObject;
import rene.zirkel.objects.PointObject;
import rene.zirkel.objects.PrimitiveLineObject;
public class PlumbConstructor extends ParallelConstructor {
@Override
public PrimitiveLineObject create(final Construction c,
final PrimitiveLineObject l, final PointObject p) {
return new PlumbObject(c, l, p);
}
@Override
public void showStatus(final ZirkelCanvas zc) {
if (L == null)
zc.showStatus(Global.name("message.plumb.first",
"Plumb Line: Choose a line!"));
else
zc.showStatus(Global.name("message.plumb.second",
"Plumb Line: Choose a Point!"));
}
@Override
public boolean construct(final XmlTree tree, final Construction c)
throws ConstructionException {
if (!testTree(tree, "Plumb"))
return false;
final XmlTag tag = tree.getTag();
if (!tag.hasParam("point") || !tag.hasParam("line"))
throw new ConstructionException("Plumb parameters missing!");
try {
final PointObject p1 = (PointObject) c.find(tag.getValue("point"));
final PrimitiveLineObject p2 = (PrimitiveLineObject) c.find(tag
.getValue("line"));
final PlumbObject o = new PlumbObject(c, p2, p1);
if (tag.hasParam("valid"))
o.setRestricted(false);
setName(tag, o);
set(tree, o);
if (tag.hasParam("partial"))
o.setPartial(true);
c.add(o);
setConditionals(tree, c, o);
} catch (final ConstructionException e) {
throw e;
} catch (final Exception e) {
throw new ConstructionException("Plumb parameters illegal!");
}
return true;
}
@Override
public String getPrompt() {
return Global.name("prompt.plumb");
}
@Override
public String getTag() {
return "Plumb";
}
@Override
public void construct(final Construction c, final String name,
final String params[], final int nparams)
throws ConstructionException {
if (nparams != 2)
throw new ConstructionException(Global.name("exception.nparams"));
final ConstructionObject P1 = c.find(params[0]);
if (P1 == null)
throw new ConstructionException(Global.name("exception.notfound")
+ " " + params[0]);
final ConstructionObject P2 = c.find(params[1]);
if (P2 == null)
throw new ConstructionException(Global.name("exception.notfound")
+ " " + params[1]);
if (!(P1 instanceof PrimitiveLineObject))
throw new ConstructionException(Global.name("exception.type") + " "
+ params[0]);
if (!(P2 instanceof PointObject))
throw new ConstructionException(Global.name("exception.type") + " "
+ params[1]);
final PlumbObject s = new PlumbObject(c, (PrimitiveLineObject) P1,
(PointObject) P2);
if (!name.equals(""))
s.setNameCheck(name);
c.add(s);
s.setDefaults();
}
}