449 lines
15 KiB
Java
449 lines
15 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: PointConstructor.java
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import eric.JSelectPopup;
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import java.awt.event.MouseEvent;
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import rene.gui.Global;
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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.expression.Expression;
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import rene.zirkel.macro.Macro;
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import rene.zirkel.objects.Circle3Object;
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import rene.zirkel.objects.CircleObject;
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import rene.zirkel.objects.ConstructionObject;
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import rene.zirkel.objects.FixedCircleObject;
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import rene.zirkel.objects.PointObject;
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import rene.zirkel.objects.PointonObject;
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import rene.zirkel.objects.PrimitiveCircleObject;
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import rene.zirkel.objects.SegmentObject;
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public class CircleConstructor extends ObjectConstructor {
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PointObject P1=null, P2=null;
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boolean Fixed=false;
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boolean reallyFixed=false;
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int EventX, EventY;
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public CircleConstructor(final boolean fixed) {
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Fixed=fixed;
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}
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public CircleConstructor() {
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this(false);
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}
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FixedCircleObject C;
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ConstructionObject O;
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boolean ShowsValue, ShowsName;
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int Moved;
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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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}
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ConstructionObject obj=null;
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reallyFixed=(e.isShiftDown()||Fixed);
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EventX=e.getX();
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EventY=e.getY();
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if ((P1==null)||(!reallyFixed&&(P2==null))){
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obj=select(e.getX(), e.getY(), zc, e.isAltDown());
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}
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setConstructionObject(obj, zc);
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}
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public void setConstructionObject(ConstructionObject obj, ZirkelCanvas zc) {
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// Il y a eu ambiguité et la méthode est forcément appelée par le
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// popupmenu de sélection :
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if ((JSelectPopup.isCallerObject())&&(obj instanceof PointonObject)) {
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int x=JSelectPopup.getMouseX();
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int y=JSelectPopup.getMouseY();
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PointObject o=new PointObject(zc.getConstruction(), zc.x(x), zc.y(y), obj);
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o.setUseAlpha(true);
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zc.addObject(o);
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zc.validate();
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o.setDefaults();
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zc.repaint();
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o.edit(zc, false, false);
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obj=o;
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}
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if (P1==null) {
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if (obj instanceof PointObject) {
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P1=(PointObject) obj;
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P1.setSelected(true);
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zc.repaint();
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}
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} else {
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if (reallyFixed) {
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final FixedCircleObject c=new FixedCircleObject(zc.getConstruction(), P1, zc.x(EventX), zc.y(EventY));
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zc.addObject(c);
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c.setDefaults();
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zc.repaint();
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O=C=c;
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ShowsValue=c.showValue();
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ShowsName=c.showName();
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if (Global.getParameter("options.movefixname", true)) {
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C.setShowValue(true);
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C.setShowName(true);
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}
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Dragging=true;
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Moved=0;
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P2=null;
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} else {
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if (obj instanceof PointObject) {
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P2=(PointObject) obj;
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if (P2==P1) {
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P2=null;
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return;
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}
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final CircleObject c=new CircleObject(zc.getConstruction(), P1, P2);
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zc.addObject(c);
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c.setDefaults();
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c.validate();
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zc.repaint();
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if (P2.moveable()&&!P2.isPointOn()&&zc.isNewPoint()) {
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ShowsValue=c.showValue();
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ShowsName=c.showName();
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if (Global.getParameter("options.movename", false)) {
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c.setShowValue(true);
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c.setShowName(true);
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}
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O=c;
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Dragging=true;
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Moved=0;
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} else {
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P1.setSelected(false);
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P1=P2=null;
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}
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}
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}
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}
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showStatus(zc);
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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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P2=select(e.getX(), e.getY(), zc, e.isAltDown());
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if (P2!=null) {
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final CircleObject c=new CircleObject(zc.getConstruction(), P1,
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P2);
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zc.addObject(c);
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c.setDefaults();
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c.validate();
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zc.repaint();
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}
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P2=null;
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}
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@Override
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public boolean waitForPoint() {
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return P1==null||!Fixed;
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}
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@Override
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public void mouseDragged(final MouseEvent e, final ZirkelCanvas zc) {
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if (!Dragging) {
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return;
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}
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Moved++;
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if (P2==null) {
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C.init(zc.getConstruction(), zc.x(e.getX()), zc.y(e.getY()));
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if (C instanceof FixedCircleObject) {
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((FixedCircleObject) C).setDragable(Moved>5);
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}
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} else {
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P2.move(zc.x(e.getX()), zc.y(e.getY()));
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zc.validate();
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}
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zc.repaint();
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}
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@Override
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public void mouseReleased(final MouseEvent e, final ZirkelCanvas zc) {
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if (!Dragging) {
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return;
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}
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Dragging=false;
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O.setShowValue(ShowsValue);
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O.setShowName(ShowsName);
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zc.repaint();
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if (P2==null) {
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P1.setSelected(false);
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P1=null;
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C.round();
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if (Moved<=5) {
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C.edit(zc, true, true);
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if (C instanceof FixedCircleObject
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&&((FixedCircleObject) C).isEditAborted()) {
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zc.delete(C);
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zc.repaint();
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reset(zc);
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}
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}
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C.validate();
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} else {
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P1.setSelected(false);
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P2.updateText();
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P1=P2=null;
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}
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O.updateCircleDep();
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zc.repaint();
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zc.showStatus();
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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=null;
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showStatus(zc);
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} else {
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zc.setPrompt(Global.name("prompt.circle"));
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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 (Fixed) {
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if (P1==null) {
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zc.showStatus(Global.name("message.fixedcircle.midpoint"));
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} else {
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zc.showStatus(Global.name("message.fixedcircle.radius"));
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}
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} else {
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if (P1==null) {
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zc.showStatus(Global.name("message.circle.midpoint"));
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} else {
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zc.showStatus(Global.name("message.circle.radius"));
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}
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}
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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, "Circle")) {
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return false;
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}
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final XmlTag tag=tree.getTag();
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try {
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if (!tag.hasParam("midpoint")) {
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throw new ConstructionException("Circle parameters missing!");
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}
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if (!tag.hasParam("through")) {
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if (tag.hasParam("fixed")) {
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final PointObject p1=(PointObject) c.find(tag.getValue("midpoint"));
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final FixedCircleObject o=new FixedCircleObject(c, p1, 0,
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0);
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c.add(o);
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setConditionals(tree, c, o);
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setName(tag, o);
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set(tree, o);
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if (tag.hasParam("partial")) {
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o.setPartial(true);
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}
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if (tag.hasParam("filled")) {
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o.setFilled(true);
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}
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if (tag.hasTrueParam("dragable")) {
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o.setDragable(true);
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}
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if (tag.hasTrueParam("drawable")) {
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o.setDragable(true); // downward compatibility
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}
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o.setFixed(tag.getValue("fixed"));
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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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}
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if (tag.hasParam("acute")) {
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o.setObtuse(false);
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}
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if (tag.hasParam("chord")) {
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o.setArc(false);
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}
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} else {
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if (!(c instanceof Macro)) {
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throw new ConstructionException(
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"Circle parameters missing!");
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}
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final PointObject p1=(PointObject) c.find(tag.getValue("midpoint"));
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final PrimitiveCircleObject o=new PrimitiveCircleObject(
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c, p1);
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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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}
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} else {
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final PointObject p1=(PointObject) c.find(tag.getValue("midpoint"));
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final PointObject p2=(PointObject) c.find(tag.getValue("through"));
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final CircleObject o=new CircleObject(c, p1, p2);
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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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if (tag.hasParam("partial")) {
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o.setPartial(true);
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}
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if (tag.hasParam("filled")) {
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o.setFilled(true);
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}
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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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}
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if (tag.hasParam("acute")) {
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o.setObtuse(false);
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}
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if (tag.hasParam("chord")) {
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o.setArc(false);
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}
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if (tag.hasParam("fixed")) {
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try {
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o.setFixed(true, tag.getValue("fixed"));
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} catch (final Exception e) {
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throw new ConstructionException("Fixed value illegal!");
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}
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}
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}
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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("Circle parameters illegal!");
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}
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return true;
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}
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@Override
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public String getTag() {
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return "Circle";
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}
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@Override
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public void construct(final Construction c, final String name,
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final String params[], final int nparams)
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throws ConstructionException {
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if (nparams>3||nparams==0) {
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throw new ConstructionException(Global.name("exception.nparams"));
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}
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final ConstructionObject P1=c.find(params[0]);
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if (P1==null) {
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throw new ConstructionException(Global.name("exception.notfound")
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+" "+params[0]);
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}
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if (!(P1 instanceof PointObject)) {
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throw new ConstructionException(Global.name("exception.type")+" "
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+params[0]);
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}
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if (nparams==1) {
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final PrimitiveCircleObject s=new PrimitiveCircleObject(c,
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(PointObject) P1);
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c.add(s);
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s.setDefaults();
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if (!name.equals("")) {
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s.setNameCheck(name);
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}
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return;
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}
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final ConstructionObject P2=c.find(params[1]);
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if (P2==null) {
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final Expression ex=new Expression(params[1], c, null);
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if (!ex.isValid()) {
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throw new ConstructionException(Global.name("exception.expression"));
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}
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final FixedCircleObject s=new FixedCircleObject(c,
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(PointObject) P1, 0, 0);
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c.add(s);
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s.setDefaults();
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s.setFixed(params[1]);
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s.validate();
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if (!name.equals("")) {
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s.setNameCheck(name);
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}
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return;
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}
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if (P2 instanceof SegmentObject) {
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final Circle3Object s=new Circle3Object(c, ((SegmentObject) P2).getP1(), ((SegmentObject) P2).getP2(), (PointObject) P1);
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c.add(s);
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s.setDefaults();
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if (!name.equals("")) {
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s.setNameCheck(name);
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}
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return;
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}
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if (!(P2 instanceof PointObject)) {
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throw new ConstructionException(Global.name("exception.type")+" "
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+params[1]);
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}
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if (nparams==3) {
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final ConstructionObject P3=c.find(params[2]);
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if (P3==null||!(P3 instanceof PointObject)) {
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final CircleObject s=new CircleObject(c, (PointObject) P1,
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(PointObject) P2);
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if (!s.canFix()) {
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throw new ConstructionException(Global.name("exception.canfix"));
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}
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s.setFixed(true, params[2]);
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if (!s.isValidFix()) {
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throw new ConstructionException(Global.name("exception.fix")
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+" "+params[2]);
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}
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c.add(s);
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s.validate();
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if (!name.equals("")) {
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s.setNameCheck(name);
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}
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s.setDefaults();
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return;
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} else {
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final Circle3Object cr=new Circle3Object(c, (PointObject) P2,
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(PointObject) P3, (PointObject) P1);
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c.add(cr);
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cr.setDefaults();
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if (!name.equals("")) {
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cr.setNameCheck(name);
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}
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return;
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}
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}
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final CircleObject s=new CircleObject(c, (PointObject) P1,
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(PointObject) P2);
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c.add(s);
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s.setDefaults();
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if (!name.equals("")) {
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s.setName(name);
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}
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}
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}
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