CaRMtl/rene/zirkel/constructors/AngleConstructor.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: Cicle3Constructor.java
import eric.JSelectPopup;
import java.awt.event.MouseEvent;
import rene.gui.Global;
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.expression.Expression;
import rene.zirkel.objects.AngleObject;
import rene.zirkel.objects.ConstructionObject;
import rene.zirkel.objects.FixedAngleObject;
import rene.zirkel.objects.PointObject;
import rene.zirkel.objects.PointonObject;
public class AngleConstructor extends ObjectConstructor {
PointObject P1 = null, P2 = null, P3 = null;
boolean Fixed = false;
public AngleConstructor(final boolean fixed) {
Fixed = fixed;
}
public AngleConstructor() {
this(false);
}
FixedAngleObject A;
ConstructionObject O;
boolean ShowsValue, Fix;
int Moved, ex, ey;
@Override
public void mousePressed(final MouseEvent e, final ZirkelCanvas zc){
if (!zc.Visual)
return;
Fix = e.isShiftDown() || Fixed;
ex = e.getX(); ey = e.getY();
ConstructionObject obj = null;
if(!Fix || !waitForLastPoint()){
obj = select(e.getX(), e.getY(), zc, e.isAltDown());
if(obj!=null){
setConstructionObject(obj, zc);
} else {
Dragging = false;
}
} else { //third clic for a fixed angle, obj=null but whatever
setConstructionObject(obj, zc);
}
}
@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){
P1=(PointObject) obj;
P1.setSelected(true);
zc.repaint();
}
showStatus(zc);
} else if(P2==null){
if(obj instanceof PointObject){
P2=(PointObject) obj;
P2.setSelected(true);
zc.repaint();
}
showStatus(zc);
} else {
if(!Fix){
if(obj instanceof PointObject){
P3 = (PointObject) obj;
if(P3==P1 || P3==P2){
P3=null;
return;
}
final AngleObject a = new AngleObject(zc.getConstruction(), P1, P2, P3);
zc.addObject(a);
a.setDefaults();
if (P3.moveable() && !P3.isPointOn() && zc.isNewPoint()) {
ShowsValue = a.showValue();
if (Global.getParameter("options.movefixname", true))
a.setShowValue(true);
O = a;
Dragging = true;
a.validate();
zc.repaint();
} else {
Dragging = false;
//P1 = P2 = P3 = null;
reset(zc);
zc.validate();
zc.repaint();
}
}
} else {
final FixedAngleObject a = new FixedAngleObject(zc.getConstruction(), P1, P2, zc.x(ex), zc.y(ey));
zc.addObject(a);
a.setDefaults();
a.init(zc.getConstruction(), zc.x(ex), zc.y(ey));
Moved = 0;
Dragging = true;
ShowsValue = a.showValue();
if (Global.getParameter("options.movefixname", true))
a.setShowValue(true);
O = A = a;
P3 = null;
zc.repaint();
}
}
}
@Override
public boolean waitForLastPoint() {
return P1 != null && P2 != null;
}
@Override
public boolean waitForPoint() {
return !Fixed || (P1 == null || P2 == null);
}
@Override
public void finishConstruction(final MouseEvent e, final ZirkelCanvas zc) {
if (!Fixed) {
P3 = select(e.getX(), e.getY(), zc, e.isAltDown());
if (P3 != null) {
final AngleObject a = new AngleObject(zc.getConstruction(), P1,
P2, P3);
zc.addObject(a);
a.setDefaults();
}
zc.repaint();
P3 = null;
} else {
final FixedAngleObject a = new FixedAngleObject(zc
.getConstruction(), P1, P2, zc.x(e.getX()), zc.y(e.getY()));
zc.addObject(a);
a.setDefaults();
a.init(zc.getConstruction(), zc.x(e.getX()), zc.y(e.getY()));
zc.setPreviewObject(a);
zc.repaint();
}
}
@Override
public void mouseDragged(final MouseEvent e, final ZirkelCanvas zc) {
if (!Dragging)
return;
Moved++;
if (P3 == null) {
A.init(zc.getConstruction(), zc.x(e.getX()), zc.y(e.getY()));
if (A instanceof FixedAngleObject)
((FixedAngleObject) A).setDragable(Moved > 5);
} else {
P3.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);
zc.repaint();
if (P3 == null) {
zc.clearSelected();
A.round();
if (Moved < 5) {
A.edit(zc, true, true);
if (A instanceof FixedAngleObject
&& ((FixedAngleObject) A).isEditAborted()) {
zc.delete(A);
reset(zc);
return;
}
}
A.validate();
} else
P3.updateText();
reset(zc);
zc.showStatus();
}
public PointObject select(final int x, final int y, final ZirkelCanvas zc, boolean altdown) {
return zc.selectCreatePoint(x, y, altdown);
}
@Override
public void reset(final ZirkelCanvas zc) {
super.reset(zc);
if (zc.Visual) {
P1 = P2 = P3 = null;
showStatus(zc);
} else {
zc.setPrompt(Global.name("prompt.angle"));
}
}
@Override
public void showStatus(final ZirkelCanvas zc) {
if (Fixed) {
if (P1 == null)
zc.showStatus(Global.name("message.fixedangle.first"));
else if (P2 == null)
zc.showStatus(Global.name("message.fixedangle.root"));
else
zc.showStatus(Global.name("message.fixedangle.second"));
} else {
if (P1 == null)
zc.showStatus(Global.name("message.angle.first"));
else if (P2 == null)
zc.showStatus(Global.name("message.angle.root"));
else
zc.showStatus(Global.name("message.angle.second"));
}
}
@Override
public boolean construct(final XmlTree tree, final Construction c)
throws ConstructionException {
if (!testTree(tree, "Angle"))
return false;
final XmlTag tag = tree.getTag();
if (!tag.hasParam("first")) {
final AngleObject o = new AngleObject(c);
try {
if (tag.hasParam("display")) {
final String type = tag.getValue("display");
if (type.equals("small"))
o.setDisplaySize(AngleObject.SMALL);
if (type.equals("normalsize"))
o.setDisplaySize(AngleObject.NORMALSIZE);
if (type.equals("large"))
o.setDisplaySize(AngleObject.LARGE);
if (type.equals("larger"))
o.setDisplaySize(AngleObject.LARGER);
if (type.equals("rectangle"))
o.setDisplaySize(AngleObject.RECT);
}
setName(tag, o);
set(tree, o);
c.add(o);
setConditionals(tree, c, o);
if (tag.hasTrueParam("filled"))
o.setFilled(true);
if (tag.hasParam("fixed"))
o.setFixed(tag.getValue("fixed"));
if (tag.hasTrueParam("acute"))
o.setObtuse(false);
else
o.setObtuse(true);
} catch (final Exception e) {
}
}
if (!tag.hasParam("first") || !tag.hasParam("root"))
throw new ConstructionException("Angle parameters missing!");
if (tag.hasParam("second")) {
try {
final PointObject p1 = (PointObject) c.find(tag
.getValue("first"));
final PointObject p2 = (PointObject) c.find(tag
.getValue("root"));
final PointObject p3 = (PointObject) c.find(tag
.getValue("second"));
final AngleObject o = new AngleObject(c, p1, p2, p3);
if (tag.hasParam("display")) {
final String type = tag.getValue("display");
if (type.equals("small"))
o.setDisplaySize(AngleObject.SMALL);
if (type.equals("large"))
o.setDisplaySize(AngleObject.LARGE);
if (type.equals("larger"))
o.setDisplaySize(AngleObject.LARGER);
if (type.equals("rectangle"))
o.setDisplaySize(AngleObject.RECT);
}
setName(tag, o);
set(tree, o);
c.add(o);
setConditionals(tree, c, o);
if (tag.hasTrueParam("filled"))
o.setFilled(true);
if (tag.hasParam("fixed"))
o.setFixed(tag.getValue("fixed"));
if (tag.hasTrueParam("acute"))
o.setObtuse(false);
else
o.setObtuse(true);
} catch (final ConstructionException e) {
throw e;
} catch (final Exception e) {
throw new ConstructionException("Angle parameters illegal!");
}
} else {
try {
final PointObject p1 = (PointObject) c.find(tag
.getValue("first"));
final PointObject p2 = (PointObject) c.find(tag
.getValue("root"));
final FixedAngleObject o = new FixedAngleObject(c, p1, p2, 0, 0);
if (tag.hasParam("display")) {
final String type = tag.getValue("display");
if (type.equals("small"))
o.setDisplaySize(FixedAngleObject.SMALL);
if (type.equals("large"))
o.setDisplaySize(FixedAngleObject.LARGE);
if (type.equals("larger"))
o.setDisplaySize(FixedAngleObject.LARGER);
if (type.equals("rectangle"))
o.setDisplaySize(FixedAngleObject.RECT);
}
setName(tag, o);
set(tree, o);
c.add(o);
setConditionals(tree, c, o);
if (tag.hasTrueParam("filled"))
o.setFilled(true);
if (tag.hasTrueParam("acute"))
o.setObtuse(false);
else
o.setObtuse(true);
if (tag.hasTrueParam("inverse"))
o.setInverse(true);
else
o.setInverse(false);
if (tag.hasTrueParam("reduced"))
o.setReduced(true);
else
o.setReduced(false);
if (tag.hasTrueParam("dragable"))
o.setDragable(true);
if (tag.hasTrueParam("drawable"))
o.setDragable(true); // downward compatibility
if (tag.hasParam("fixed"))
o.setFixed(tag.getValue("fixed"));
else
throw new ConstructionException("");
} catch (final ConstructionException e) {
throw e;
} catch (final Exception e) {
throw new ConstructionException("Angle parameters illegal!");
}
}
return true;
}
@Override
public String getTag() {
return "Angle";
}
@Override
public void construct(final Construction c, final String name,
final String params[], final int nparams)
throws ConstructionException {
if (nparams != 3)
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]);
final ConstructionObject P3 = c.find(params[2]);
if (P3 == null || !(P3 instanceof PointObject)) {
final Expression ex = new Expression(params[2], c, null);
if (!ex.isValid())
throw new ConstructionException(Global.name("exception.expression"));
final FixedAngleObject s = new FixedAngleObject(c,
(PointObject) P1, (PointObject) P2, 0, 0);
s.setFixed(params[2]);
if (!name.equals(""))
s.setNameCheck(name);
c.add(s);
s.setDefaults();
s.setObtuse(true);
s.setFixed(params[2]);
s.validate();
return;
}
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]);
if (!(P3 instanceof PointObject))
throw new ConstructionException(Global.name("exception.type") + " "
+ params[2]);
if (P1 == P2 || P2 == P3)
throw new ConstructionException(Global.name("exception.parameter"));
final AngleObject s = new AngleObject(c, (PointObject) P1,
(PointObject) P2, (PointObject) P3);
if (!name.equals(""))
s.setNameCheck(name);
c.add(s);
s.setDefaults();
}
}