CaRMtl/rene/zirkel/constructors/LineConstructor.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: LineConstructor.java
import eric.JSelectPopup;
import java.awt.event.MouseEvent;
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.macro.Macro;
import rene.zirkel.objects.AxisObject;
import rene.zirkel.objects.ConstructionObject;
import rene.zirkel.objects.LineObject;
import rene.zirkel.objects.PointObject;
import rene.zirkel.objects.PointonObject;
import rene.zirkel.objects.PrimitiveLineObject;
public class LineConstructor extends ObjectConstructor {
PointObject P1=null, P2=null;
ConstructionObject O;
boolean Fix=false;
boolean ShowsValue, ShowsName, Moved;
@Override
public void mousePressed(final MouseEvent e, final ZirkelCanvas zc) {
if (!zc.Visual) {
return;
}
Fix=e.isShiftDown()||isFixed();
ConstructionObject obj;
if (Fix&&P1!=null&&!Dragging) { //Dibs, modif pour le segment de longueur fixe
obj= new PointObject(zc.getConstruction(),zc.x(e.getX()), zc.y(e.getY()));
((PointObject) obj).setUseAlpha(true);
zc.addObject(obj);
zc.validate();
obj.setDefaults();
zc.repaint();
obj.edit(zc, false, false);
zc.setNewPoint(true);
}
else {
obj=select(e.getX(), e.getY(), zc, e.isAltDown());
}
if (obj!=null) {
setConstructionObject(obj, zc);
} else {
Dragging=false;
}
}
@Override
public boolean waitForLastPoint() {
return P1!=null&&P2==null;
}
@Override
public void setConstructionObject(ConstructionObject obj, ZirkelCanvas zc) {
// Il y a eu ambiguité et la méthode est forcément appelée par le
// popupmenu de sélection :
if ((JSelectPopup.isCallerObject())&&(obj instanceof PointonObject)) {
int x=JSelectPopup.getMouseX();
int y=JSelectPopup.getMouseY();
PointObject o=new PointObject(zc.getConstruction(), zc.x(x), zc.y(y), obj);
o.setUseAlpha(true);
zc.addObject(o);
zc.validate();
o.setDefaults();
zc.repaint();
o.edit(zc, false, false);
obj=o;
}
if (P1==null) {
if (obj instanceof PointObject) {
// System.out.println("premier point="+obj.getName());
P1=(PointObject) obj;
P1.setSelected(true);
zc.repaint();
}
} else if (P2==null) {
if (obj instanceof PointObject) {
// System.out.println("deuxième point="+obj.getName());
P2=(PointObject) obj;
if (P2==P1) {
P2=null;
return;
}
final ConstructionObject o=create(zc.getConstruction(), P1,P2);
zc.addObject(o);
o.setDefaults();
if (P2.moveable()&&!P2.isPointOn()&&zc.isNewPoint()) {
Dragging=true;
Moved=false;
O=o;
ShowsValue=o.showValue();
ShowsName=o.showName();
if ((Fix&&Global.getParameter("options.movefixname", true))||(!Fix&&Global.getParameter("options.movename",
false))) {
o.setShowValue(true);
o.setShowName(true);
}
} else {
Dragging=false;
if (Fix) {
setFixed(zc, o);
}
P1=P2=null;
}
zc.clearSelected();
}
}
showStatus(zc);
}
@Override
public void finishConstruction(final MouseEvent e, final ZirkelCanvas zc) {
P2=select(e.getX(), e.getY(), zc, e.isAltDown());
if (P2!=null) {
final ConstructionObject o=create(zc.getConstruction(), P1, P2);
zc.addObject(o);
o.setDefaults();
zc.validate();
zc.repaint();
P2=null;
}
}
@Override
public void mouseDragged(final MouseEvent e, final ZirkelCanvas zc) {
if (!Dragging) {
return;
};
Moved=true;
if (P2!=null) {
P2.move(zc.x(e.getX()), zc.y(e.getY()));
zc.validate();
zc.repaint();
}
}
@Override
public void mouseReleased(final MouseEvent e, final ZirkelCanvas zc) {
if (!Dragging) {
return;
}
Dragging=false;
O.setShowValue(ShowsValue);
O.setShowName(ShowsName);
if (Fix) {
O.round();
}
zc.repaint();
if (Fix&&!Moved) {
setFixed(zc, O);
} else {
try {
O.setFixed(false, O.getStringLength());
} catch (Exception ex) {}
}
reset(zc);
}
public boolean isFixed() {
return false;
}
public void setFixed(final ZirkelCanvas zc, final ConstructionObject o) {
}
public PointObject select(final int x, final int y, final ZirkelCanvas zc, boolean altdown) {
return zc.selectCreatePoint(x, y, altdown);
}
public ConstructionObject create(Construction c,PointObject p1, PointObject p2) {
return new LineObject(c, p1, p2);
}
@Override
public void reset(final ZirkelCanvas zc) {
if (!zc.Visual) {
zc.setPrompt(getPrompt());
} else {
zc.clearSelected();
P1=P2=null;
showStatus(zc);
}
}
public String getPrompt() {
return Global.name("prompt.line");
}
@Override
public void showStatus(final ZirkelCanvas zc) {
if (P1==null) {
zc.showStatus(Global.name("message.line.first",
"Line: Set the first point!"));
} else {
zc.showStatus(Global.name("message.line.second",
"Line: Set the second point!"));
}
}
@Override
public boolean construct(final XmlTree tree, final Construction c)
throws ConstructionException {
if (!testTree(tree, "Line")) {
return false;
}
final XmlTag tag=tree.getTag();
if (tag.hasParam("xaxis")) {
final AxisObject o=new AxisObject(c, true);
setName(tag, o);
set(tree, o);
c.add(o);
c.xAxis=o;
return true;
}
if (tag.hasParam("yaxis")) {
final AxisObject o=new AxisObject(c, false);
setName(tag, o);
set(tree, o);
c.add(o);
c.yAxis=o;
return true;
}
if (!tag.hasParam("from")||!tag.hasParam("to")) {
if (!(c instanceof Macro)) {
throw new ConstructionException("Line points missing!");
}
final PrimitiveLineObject o=new PrimitiveLineObject(c);
setName(tag, o);
set(tree, o);
c.add(o);
setConditionals(tree, c, o);
} else {
try {
final PointObject p1=(PointObject) c.find(tag.getValue("from"));
final PointObject p2=(PointObject) c.find(tag.getValue("to"));
final LineObject o=new LineObject(c, p1, p2);
if (tag.hasParam("partial")) {
o.setPartial(true);
}
setName(tag, o);
set(tree, o);
c.add(o);
setConditionals(tree, c, o);
} catch (final ConstructionException e) {
throw e;
} catch (final Exception e) {
throw new ConstructionException("Line points illegal!");
}
}
return true;
}
@Override
public String getTag() {
return "Line";
}
@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 PointObject)) {
throw new ConstructionException(Global.name("exception.type")+" "+params[0]);
}
if (!(P2 instanceof PointObject)) {
throw new ConstructionException(Global.name("exception.type")+" "+params[1]);
}
final LineObject s=new LineObject(c, (PointObject) P1,
(PointObject) P2);
c.add(s);
s.setDefaults();
if (!name.equals("")) {
s.setNameCheck(name);
}
}
}