package rene.zirkel.objects;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import rene.gui.*;
import rene.util.xml.*;
import rene.zirkel.*;
import rene.zirkel.construction.*;
import rene.zirkel.dialogs.*;
import rene.zirkel.expression.*;
import rene.zirkel.graphics.*;
import rene.dialogs.*;
class CurveEditDialog extends ObjectEditDialog
{ TextField VarMin,VarMax,DVar,Var,EX,EY;
IconBar IC,TypeIB;
ZirkelCanvas ZC;
Checkbox Special;
public CurveEditDialog (ZirkelCanvas zc, FunctionObject o)
{ super(zc.getFrame(),Zirkel.name("edit.function.title"),o,"function");
ZC=zc;
}
public void addFirst (Panel P)
{ FunctionObject f=(FunctionObject)O;
VarMin=new TextFieldAction(this,"varmin",""+f.VarMin,30);
P.add(new MyLabel(Zirkel.name("function.varmin"))); P.add(VarMin);
VarMax=new TextFieldAction(this,"varmax",""+f.VarMax,30);
P.add(new MyLabel(Zirkel.name("function.varmax"))); P.add(VarMax);
DVar=new TextFieldAction(this,"dvar",""+f.DVar,30);
P.add(new MyLabel(Zirkel.name("function.dvar"))); P.add(DVar);
Var=new TextFieldAction(this,"var",""+f.getVar(),30);
P.add(new MyLabel(Zirkel.name("function.var"))); P.add(Var);
String ex=f.getEX();
if (ex.equals(f.Var)) ex="";
EX=new TextFieldAction(this,"ex",""+ex,30);
P.add(new MyLabel(Zirkel.name("function.x"))); P.add(EX);
EY=new TextFieldAction(this,"ey",""+f.getEY(),30);
P.add(new MyLabel(Zirkel.name("function.y"))); P.add(EY);
}
public void addSecond (Panel P)
{ FunctionObject Func=(FunctionObject)O;
IC=new IconBar(F);
IC.setIconBarListener(this);
IC.addOnOffLeft("filled");
IC.setState("filled",Func.isFilled());
IC.setIconBarListener(this);
P.add(new MyLabel(""));
P.add(IC);
TypeIB=new IconBar(F);
TypeIB.addToggleGroupLeft("type",6);
TypeIB.toggle("type",Func.getType());
P.add(new MyLabel("")); P.add(TypeIB);
P.add(new MyLabel(Zirkel.name("edit.discrete"))); P.add(Special=new Checkbox());
Special.setState(Func.isSpecial());
}
public void addButton (Panel P)
{ FunctionObject f=(FunctionObject)O;
if (!f.Var.equals(f.EX))
{ if (f.Center==null)
P.add(new ButtonAction(this,Zirkel.name("edit.function.center"),
"SetCenter"));
else
P.add(new ButtonAction(this,Zirkel.name("edit.function.free"),
"SetFree"));
P.add(new MyLabel(" "));
}
}
public void iconPressed (String o)
{ if (o.equals("filled"))
{ if (IC.getState("filled"))
{ IB.setState("isback",true);
ThicknessIB.setEnabled("solid",true);
}
else
{ IB.setState("isback",false);
ThicknessIB.setState("solid",false);
ThicknessIB.setEnabled("solid",false);
}
}
super.iconPressed(o);
}
public void setAction ()
{ FunctionObject f=(FunctionObject)O;
f.setExpressions(Var.getText(),EX.getText(),EY.getText());
f.setRange(VarMin.getText(),VarMax.getText(),DVar.getText());
f.setFilled(IC.getState("filled"));
f.setType(TypeIB.getToggleState("type"));
f.setSpecial(Special.getState());
}
public void doAction (String o)
{ if (o.equals("SetCenter"))
{ ZC.setCurveCenter((FunctionObject)O);
super.doAction("OK");
}
else if (o.equals("SetFree"))
{ ((FunctionObject)O).Center=null;
super.doAction("OK");
}
else super.doAction(o);
}
public void focusGained (FocusEvent e)
{ VarMin.requestFocus();
}
}
00134 public class FunctionObject extends ConstructionObject
implements PointonObject
{ Expression EX=null,EY=null;
Expression VarMin=null,VarMax=null,DVar=null;
double X[]={0};
String Var[]={"x"};
boolean Filled=false;
Expression Center=null;
protected int Type=0;
public final static int SQUARE=0,DIAMOND=1,CIRCLE=2,DOT=3,CROSS=4,DCROSS=5;
protected boolean Special=false;
public FunctionObject (Construction c)
{ super(c);
VarMin=new Expression("-10",c,this);
VarMax=new Expression("10",c,this);
DVar=new Expression("0.1",c,this);
validate();
updateText();
}
public void setFilled (boolean flag)
{ Filled=flag;
}
public boolean isFilled ()
{ return Filled;
}
public String getTag () { return "Function"; }
public int getN () { return N.next(); }
public void updateText ()
{ if (EX!=null && EY!=null)
setText(text2(Zirkel.name("text.function"),EX.toString(),EY.toString()));
else
setText(text2(Zirkel.name("text.function"),"",""));
}
public void validate ()
{ if (EX!=null && EY!=null)
{ Valid=EX.isValid() && EY.isValid() && VarMin.isValid()
&& VarMax.isValid() && DVar.isValid();
}
else Valid=false;
}
public void setExpressions (String t, String ex, String ey)
{ StringTokenizer tok=new StringTokenizer(t);
Var=new String[tok.countTokens()];
X=new double[tok.countTokens()];
int i=0;
while (tok.hasMoreTokens())
{ Var[i++]=tok.nextToken();
}
if (ex.equals("")) ex=Var[0];
EX=new Expression(ex,getConstruction(),this,Var);
EY=new Expression(ey,getConstruction(),this,Var);
validate();
}
public void setRange (String min, String max, String d)
{ VarMin=new Expression(min,getConstruction(),this);
VarMax=new Expression(max,getConstruction(),this);
DVar=new Expression(d,getConstruction(),this);
}
public String getEX ()
{ if (EX!=null) return EX.toString();
else return Var[0];
}
public String getEY ()
{ if (EY!=null) return EY.toString();
else return "0";
}
PolygonFiller PF=null;
double C1,C2;
int C,R,W,H;
public void paint (MyGraphics g, ZirkelCanvas zc)
{ if (!Valid || mustHide(zc)) return;
double varmin,varmax,d;
boolean special=Special,reverse=false;
try
{ varmin=VarMin.getValue();
varmax=VarMax.getValue();
d=DVar.getValue();
if (varmin>varmax)
{ double h=varmin; varmin=varmax; varmax=h;
reverse=true;
}
if (d<0) d=-d;
if (d<(varmax-varmin)/1000) d=(varmax-varmin)/1000;
}
catch (Exception e)
{ Valid=false; return;
}
X[0]=varmin;
if (isStrongSelected() && g instanceof MyGraphics13)
{ PolygonDrawer pm=new PolygonDrawer(g,this);
pm.useAsMarker();
double x1=0,y1=0;
while (true)
{ try
{ x1=EX.getValue();
y1=EY.getValue();
if (Math.abs(zc.col(x1))+Math.abs(zc.col(y1))>1e5)
{ finish(g,zc);
C1=X[0];
if (pm!=null) pm.finishPolygon();
}
else
{ if (!special || isFilled())
{ if (special && isFilled())
{ if (pm.hasStarted())
{ if (reverse)
{ pm.drawTo(pm.c(),zc.row(y1));
pm.drawTo(zc.col(x1),zc.row(y1));
}
else
{ pm.drawTo(zc.col(x1),pm.r());
pm.drawTo(zc.col(x1),zc.row(y1));
}
}
}
pm.drawTo(zc.col(x1),zc.row(y1));
}
else
{ ((MyGraphics13)g).drawMarkerLine(zc.col(x1),zc.row(y1),zc.col(x1),zc.row(y1));
}
C2=X[0];
}
}
catch (Exception e)
{ finish(g,zc);
C1=X[0];
pm.finishPolygon();
}
if (X[0]>=varmax) break;
X[0]=X[0]+d;
if (X[0]>varmax) X[0]=varmax;
}
pm.finishPolygon();
}
X[0]=varmin;
g.setColor(this);
PolygonDrawer pd=null;
if (!special || isFilled()) pd=new PolygonDrawer(g,this);
if (isFilled())
{ if (PF==null) PF=new PolygonFiller(g,this);
PF.start();
PF.setGraphics(g);
}
C1=X[0];
double x1=0,y1=0;
while (true)
{ try
{ x1=EX.getValue();
y1=EY.getValue();
if (Math.abs(zc.col(x1))+Math.abs(zc.col(y1))>1e5)
{ finish(g,zc);
C1=X[0];
if (pd!=null) pd.finishPolygon();
}
else
{ if (isFilled())
{ if (PF.length()==0) C1=X[0];
if (special)
{ if (pd.hasStarted())
{ if (reverse)
{ PF.drawTo(pd.c(),zc.row(y1));
PF.drawTo(zc.col(x1),zc.row(y1));
}
else
{ PF.drawTo(zc.col(x1),pd.r());
PF.drawTo(zc.col(x1),zc.row(y1));
}
}
else
PF.drawTo(zc.col(x1),zc.row(y1));
}
else
PF.drawTo(zc.col(x1),zc.row(y1),X[0]<varmax);
}
if (pd!=null)
{ if (special && isFilled())
{ if (pd.hasStarted())
{ if (reverse)
{ pd.drawTo(pd.c(),zc.row(y1));
pd.drawTo(zc.col(x1),zc.row(y1));
}
else
{ pd.drawTo(zc.col(x1),pd.r());
pd.drawTo(zc.col(x1),zc.row(y1));
}
}
}
pd.drawTo(zc.col(x1),zc.row(y1));
}
else
{ PointObject.drawPoint(g,zc,this,x1,y1,Type);
}
C2=X[0];
}
}
catch (Exception e)
{ finish(g,zc);
C1=X[0];
pd.finishPolygon();
}
if (X[0]>=varmax) break;
X[0]=X[0]+d;
if (X[0]>varmax) X[0]=varmax;
}
finish(g,zc);
if (pd!=null) pd.finishPolygon();
}
static double x[]=new double[4],y[]=new double[4];
public void finish (MyGraphics g, ZirkelCanvas zc)
{ if (isFilled())
{ if (getEX().equals(getVar()))
{ System.out.println(C1+" "+C2);
PF.drawTo(zc.col(C2),zc.row(0));
PF.drawTo(zc.col(C1),zc.row(0));
}
else
{ if (getCenter()!=null)
PF.drawTo(zc.col(getCenter().getX()),
zc.row(getCenter().getY()));
else
PF.drawTo(zc.col(0),zc.row(0));
}
PF.finishPolygon();
}
}
public double getValue ()
throws ConstructionException
{ if (!Valid) throw new InvalidException("exception.invalid");
return X[0];
}
public double getValue (String var)
throws ConstructionException
{ if (!Valid) throw new InvalidException("exception.invalid");
for (int i=0; i<Var.length; i++)
if (var.equals(Var[i])) return X[i];
return X[0];
}
public double getIntegral ()
throws ConstructionException
{ return getSum();
}
public String getDisplayValue ()
{ if (getEX().equals(getVar())) return EY.toString();
else return "("+EX.toString()+","+EY.toString()+")";
}
public boolean nearto (int cc, int rr, ZirkelCanvas zc)
{ if (!displays(zc)) return false;
int size=(int)zc.selectionSize();
double varmin,varmax,d;
try
{ varmin=VarMin.getValue();
varmax=VarMax.getValue();
d=DVar.getValue();
if (varmin>varmax)
{ double h=varmin; varmin=varmax; varmax=h;
}
if (d<0) d=-d;
if (d<(varmax-varmin)/1000) d=(varmax-varmin)/1000;
}
catch (Exception e)
{ Valid=false; return false;
}
X[0]=varmin;
double x=zc.x(cc),y=zc.y(rr);
boolean last=false;
double x0=0;
double y0=0;
while (X[0]<varmax)
{ X[0]=X[0]+d;
if (X[0]>varmax) X[0]=varmax;
try
{ double x1=EX.getValue();
double y1=EY.getValue();
if (Math.abs(zc.col(x1))+Math.abs(zc.col(y1))>1e5)
throw new Exception("");
if (last)
{ Value=Math.abs(cc-zc.col(x1))+Math.abs(rr-zc.row(y1));
if (Value<=size) return true;
double r=Math.sqrt(Math.abs(x1-x0)*Math.abs(x1-x0)
+Math.abs(y1-y0)*Math.abs(y1-y0));
if (r>1e-5)
{ double h=((x-x0)*(x1-x0)+(y-y0)*(y1-y0))/r;
if (h>=0 && h<=r)
{ Value=Math.abs(((x-x0)*(y1-y0)-(y-y0)*(x1-x0))/r)
/zc.dx(1);
if (Value<=size) return true;
}
}
}
x0=x1; y0=y1; last=true;
}
catch (Exception e)
{ last=false;
}
}
return false;
}
public boolean EditAborted;
public void edit (ZirkelCanvas zc)
{ ObjectEditDialog d;
while (true)
{ d=new CurveEditDialog(zc,this);
d.setVisible(true);
EditAborted=false;
if (d.isAborted())
{ EditAborted=true;
break;
}
else if (!EX.isValid())
{ Frame F=zc.getFrame();
Warning w=new Warning(F,EX.getErrorText(),
Zirkel.name("warning"),true);
w.center(F);
w.setVisible(true);
}
else if (!EY.isValid())
{ Frame F=zc.getFrame();
Warning w=new Warning(F,EY.getErrorText(),
Zirkel.name("warning"),true);
w.center(F);
w.setVisible(true);
}
else break;
}
validate();
updateText();
zc.getConstruction().updateCircleDep();
zc.repaint();
if (d.wantsMore())
{ new EditConditionals(zc.getFrame(),this);
validate();
}
}
public void printArgs (XmlWriter xml)
{ xml.printArg("x",EX.toString());
xml.printArg("y",EY.toString());
xml.printArg("var",getVar());
xml.printArg("min",""+VarMin);
xml.printArg("max",""+VarMax);
xml.printArg("d",""+DVar);
if (Special) xml.printArg("special","true");
printType(xml);
if (Filled) xml.printArg("filled","true");
if (getCenter()!=null) xml.printArg("center",getCenter().getName());
}
public void setType (int type)
{ Type=type;
}
public int getType ()
{ return Type;
}
public void printType (XmlWriter xml)
{ if (Type!=0)
{ switch (Type)
{ case DIAMOND : xml.printArg("shape","diamond"); break;
case CIRCLE : xml.printArg("shape","circle"); break;
case DOT : xml.printArg("shape","dot"); break;
case CROSS : xml.printArg("shape","cross"); break;
case DCROSS : xml.printArg("shape","dcross"); break;
}
}
}
public void translate ()
{ try
{ EX=new Expression(EX.toString(),getConstruction(),this,Var);
EY=new Expression(EY.toString(),getConstruction(),this,Var);
VarMin=new Expression(VarMin.toString(),getConstruction(),this);
VarMax=new Expression(VarMax.toString(),getConstruction(),this);
DVar=new Expression(DVar.toString(),getConstruction(),this);
ConstructionObject O=getTranslation();
setTranslation(this);
EX.translate();
EY.translate();
VarMin.translate();
VarMax.translate();
DVar.translate();
if (getCenter()!=null)
{ setCenter(getCenter().getName());
Center.translate();
}
validate();
setTranslation(O);
}
catch (Exception e)
{ System.out.println();
System.out.println(getName());
System.out.println(e);
e.printStackTrace();
}
}
public boolean onlynearto (int x, int y, ZirkelCanvas zc)
{ return false;
}
public boolean equals (ConstructionObject o)
{ return false;
}
public Enumeration depending ()
{ DL.reset();
addDepending(EX);
addDepending(EY);
addDepending(VarMin);
addDepending(VarMax);
addDepending(DVar);
return DL.elements();
}
public void addDepending (Expression E)
{ if (E!=null)
{ Enumeration e=E.getDepList().elements();
while (e.hasMoreElements())
{ DL.add((ConstructionObject)e.nextElement());
}
}
}
public boolean hasUnit ()
{ return false;
}
public double evaluateF (double x[])
throws ConstructionException
{ int n=x.length;
if (n>X.length) n=X.length;
for (int i=0; i<n; i++) X[i]=x[i];
for (int i=n; i<X.length; i++) X[i]=0;
try
{ return EY.getValue();
}
catch (Exception e)
{ throw new ConstructionException("");
}
}
public double evaluateF (double x)
throws ConstructionException
{ X[0]=x;
for (int i=1; i<X.length; i++) X[i]=0;
try
{ return EY.getValue();
}
catch (Exception e)
{ throw new ConstructionException("");
}
}
public void project (PointObject P)
{ double varmin,varmax,dvar;
try
{ varmin=VarMin.getValue();
varmax=VarMax.getValue();
dvar=DVar.getValue();
if (varmin>varmax)
{ double h=varmin; varmin=varmax; varmax=h;
}
if (dvar<(varmax-varmin)/1000)
dvar=(varmax-varmin)/1000;
}
catch (Exception e)
{ Valid=false; return;
}
X[0]=varmin;
double x=0,y=0,x0=0,y0=0,dmin=0;
boolean started=false;
while (true)
{ try
{ double x1=EX.getValue();
double y1=EY.getValue();
if (!started)
{ dmin=Math.sqrt((P.getX()-x1)*(P.getX()-x1)+
(P.getY()-y1)*(P.getY()-y1));
x0=x=x1; y0=y=y1;
started=true;
}
else
{ double h=(x1-x0)*(x1-x0)+(y1-y0)*(y1-y0);
double g=(P.getX()-x0)*(x1-x0)+(P.getY()-y0)*(y1-y0);
if (g<0) g=0;
if (g>h) g=h;
double x2=x0+g/h*(x1-x0),y2=y0+g/h*(y1-y0);
double d=Math.sqrt((P.getX()-x2)*(P.getX()-x2)+
(P.getY()-y2)*(P.getY()-y2));
if (d<dmin)
{ dmin=d;
x=x2; y=y2;
}
x0=x1; y0=y1;
}
}
catch (Exception e)
{}
if (X[0]>=varmax) break;
X[0]=X[0]+dvar;
if (X[0]>varmax) X[0]=varmax;
}
if (started)
{ P.setXY(x,y);
}
}
public double getSum ()
{ double varmin,varmax,dvar;
boolean reverse=false;
boolean parametric=!getEX().equals(getVar());
try
{ varmin=VarMin.getValue();
varmax=VarMax.getValue();
dvar=DVar.getValue();
if (varmin>varmax)
{ double h=varmin; varmin=varmax; varmax=h;
reverse=true;
}
if (dvar<0) dvar=-dvar;
if (dvar<(varmax-varmin)/1000)
dvar=(varmax-varmin)/1000;
}
catch (Exception e)
{ Valid=false; return 0;
}
X[0]=varmin;
double x0=0,y0=0;
boolean started=false;
double sum=0;
while (true)
{ try
{ double x1=EX.getValue();
double y1=EY.getValue();
if (parametric)
{ double x=0,y=0;
if (getCenter()!=null)
{ x=getCenter().getX(); y=getCenter().getY();
}
if (started)
sum+=((x0-x)*(y1-y)-(y0-y)*(x1-x))/2;
}
else
{ if (started)
{ if (Special)
{ if (reverse) sum+=(x1-x0)*y1;
else sum+=(x1-x0)*y0;
}
else
{ sum+=(x1-x0)*(y0+y1)/2;
}
}
}
x0=x1; y0=y1;
started=true;
}
catch (Exception e) {}
if (X[0]>=varmax) break;
X[0]=X[0]+dvar;
if (X[0]>varmax) X[0]=varmax;
}
return sum;
}
public double getLength ()
{ double varmin,varmax,dvar;
boolean reverse=false;
boolean parametric=!getEX().equals(getVar());
try
{ varmin=VarMin.getValue();
varmax=VarMax.getValue();
dvar=DVar.getValue();
if (varmin>varmax)
{ double h=varmin; varmin=varmax; varmax=h;
reverse=true;
}
if (dvar<0) dvar=-dvar;
if (dvar<(varmax-varmin)/1000)
dvar=(varmax-varmin)/1000;
}
catch (Exception e)
{ Valid=false; return 0;
}
X[0]=varmin;
double x0=0,y0=0;
boolean started=false;
double sum=0;
while (true)
{ try
{ double x1=EX.getValue();
double y1=EY.getValue();
if (started)
sum+=Math.sqrt((x1-x0)*(x1-x0)+(y1-y0)*(y1-y0));
started=true;
x0=x1; y0=y1;
}
catch (Exception e) {}
if (X[0]>=varmax) break;
X[0]=X[0]+dvar;
if (X[0]>varmax) X[0]=varmax;
}
return sum;
}
public boolean isSpecial ()
{ return Special;
}
public void setSpecial (boolean f)
{ Special=f;
}
public void project(PointObject P, double alpha)
{ project(P);
}
public boolean maybeTransparent ()
{ return true;
}
public boolean canDisplayName ()
{ return false;
}
public void setCenter (String s)
{ if (Cn==null) return;
Center=new Expression("@\""+s+"\"",Cn,this);
}
public boolean isFilledForSelect ()
{ return false;
}
public PointObject getCenter ()
{ try
{ return (PointObject)Center.getObject();
}
catch (Exception e)
{ return null;
}
}
public String getVar ()
{ String vars=Var[0];
for (int i=1; i<Var.length; i++) vars=vars+" "+Var[i];
return vars;
}
public boolean canInteresectWith(ConstructionObject o)
{ return true;
}
}