151 lines
4.2 KiB
Java
151 lines
4.2 KiB
Java
/*
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Copyright 2006 Rene Grothmann, modified by Eric Hakenholz
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This file is part of C.a.R. software.
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C.a.R. is a 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, version 3 of the License.
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C.a.R. 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package rene.zirkel.constructors;
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// file: Cicle3Constructor.java
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import java.awt.event.MouseEvent;
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import rene.util.xml.XmlTag;
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import rene.util.xml.XmlTree;
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import rene.gui.Global;
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import rene.zirkel.ZirkelCanvas;
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import rene.zirkel.construction.Construction;
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import rene.zirkel.construction.ConstructionException;
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import rene.zirkel.objects.Circle3Object;
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import rene.zirkel.objects.PointObject;
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public class Circle3Constructor extends ObjectConstructor {
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PointObject P1 = null, P2 = null, P3 = null;
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@Override
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public void mousePressed(final MouseEvent e, final ZirkelCanvas zc) {
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if (!zc.Visual)
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return;
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if (P1 == null) {
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P1 = select(e.getX(), e.getY(), zc, e.isAltDown());
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if (P1 != null) {
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P1.setSelected(true);
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zc.repaint();
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}
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showStatus(zc);
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} else if (P2 == null) {
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P2 = select(e.getX(), e.getY(), zc, e.isAltDown());
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if (P2 != null && P2 != P1) {
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P2.setSelected(true);
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zc.repaint();
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}
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showStatus(zc);
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} else {
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P3 = select(e.getX(), e.getY(), zc, e.isAltDown());
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if (P3 != null) {
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final Circle3Object c = new Circle3Object(zc.getConstruction(),
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P1, P2, P3);
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zc.addObject(c);
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c.setDefaults();
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c.updateCircleDep();
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P1 = P2 = P3 = null;
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zc.clearSelected();
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showStatus(zc);
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}
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}
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}
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@Override
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public boolean waitForLastPoint() {
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return P1 != null && P2 != null;
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}
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@Override
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public void finishConstruction(final MouseEvent e, final ZirkelCanvas zc) {
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P3 = select(e.getX(), e.getY(), zc, e.isAltDown());
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if (P3 != null) {
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final Circle3Object c = new Circle3Object(zc.getConstruction(), P1,
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P2, P3);
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zc.addObject(c);
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c.setDefaults();
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zc.validate();
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zc.repaint();
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P3 = null;
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}
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}
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public PointObject select(final int x, final int y, final ZirkelCanvas zc, boolean altdown) {
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return zc.selectCreatePoint(x, y, altdown);
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}
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@Override
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public void reset(final ZirkelCanvas zc) {
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super.reset(zc);
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if (zc.Visual) {
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P1 = P2 = P3 = null;
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showStatus(zc);
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} else {
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zc.setPrompt(Global.name("prompt.circle3"));
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}
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}
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@Override
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public void showStatus(final ZirkelCanvas zc) {
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if (P1 == null)
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zc.showStatus(Global.name("message.circle3.first",
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"Circle: Choose the first radius point!"));
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else if (P2 == null)
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zc.showStatus(Global.name("message.circle3.second",
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"Circle: Choose the second radius point!"));
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else
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zc.showStatus(Global.name("message.circle3.midpoint",
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"Circle: Choose the midpoint!"));
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}
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@Override
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public boolean construct(final XmlTree tree, final Construction c)
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throws ConstructionException {
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if (!testTree(tree, "Circle3"))
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return false;
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final XmlTag tag = tree.getTag();
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if (!tag.hasParam("midpoint") || !tag.hasParam("from")
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|| !tag.hasParam("to"))
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throw new ConstructionException("Circle3 parameters missing!");
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try {
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final PointObject p1 = (PointObject) c.find(tag
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.getValue("midpoint"));
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final PointObject p2 = (PointObject) c.find(tag.getValue("from"));
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final PointObject p3 = (PointObject) c.find(tag.getValue("to"));
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final Circle3Object o = new Circle3Object(c, p2, p3, p1);
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if (tag.hasParam("partial"))
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o.setPartial(true);
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if (tag.hasParam("start") && tag.hasParam("end"))
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o.setRange(tag.getValue("start"), tag.getValue("end"));
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setName(tag, o);
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set(tree, o);
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c.add(o);
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setConditionals(tree, c, o);
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} catch (final ConstructionException e) {
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throw e;
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} catch (final Exception e) {
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throw new ConstructionException("Circle3 parameters illegal!");
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}
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return true;
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}
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}
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