/*
Copyright 2001 by Ralph Hartley
This software is licenced under the terms of the
Gnu Public Licence
*/
import java.awt.geom.*;
import java.awt.*;
import java.awt.Graphics2D.*;
import java.awt.print.*;
import java.util.*;
import java.io.*;

public class Page extends Box {

  private static final long serialVersionUID = Version.getSUID();

  public static double PRINTWIDTH = 1;
//  public static String DEFAULTPAGENAME = "Page0";

  public static int WIDTHMODE = 0;
  public static int HEIGHTMODE = 1;
  public static int PIXELMODE = 2;
  public static int SCALEMODE = 3;

//  public static Rectangle2D getDefaultBox() {

//  }

  static Page defpage = null;

  boolean printer;
  boolean index;
  boolean image;
  double resolution;
  double presolution;
  double aspect = -1;      // obsolete 1/27/01
  int ressetting;
  int pressetting;
  Unit printerunit;
  Unit imageunit;
  Unit mapunit;
  File file;

  Stacking stack = null;
  boolean usestack = false;

  public Comp comp = null;

  public Page() {
    super(new Point2D.Double(0,0),null,null);
//new
//      
    printer = false;
    index = false;
    image = true;
    resolution = 1.0;
    presolution = 1.0;
    ressetting = Page.SCALEMODE;
    pressetting = Page.SCALEMODE;
    file = new File("");
    imageunit = Unit.inch;
    printerunit = Unit.inch;
    mapunit = Unit.foot;
  }

  public Page(Point2D where,View view,Object arg) {
    super(where,view,null);
//((arg!=null && arg instanceof Rectangle2D)?arg:
//        	      new Rectangle2D.Double(-PRINTWIDTH/2,-defpage.subaspect*PRINTWIDTH/2,
//        				     PRINTWIDTH,defpage.subaspect*PRINTWIDTH)));
    copy(defpage);
    reshape();
    comp = (Comp)arg;
  }
  
  public void copy(Page that) {
    printerunit = that.printerunit;
    imageunit = that.imageunit;
    mapunit = that.mapunit;
    printer = that.printer;
    index=that.index;
    image=that.image;
    resolution = that.resolution;
    presolution = that.presolution;
    ressetting=that.ressetting;
    pressetting=that.pressetting;
    file=that.file;

    super.copy(that);
  }

/*
  public void setName(String name){
    if (DEFAULTPAGENAME==null || 0<name.compareTo(DEFAULTPAGENAME)) {
      DEFAULTPAGENAME = name;
      Persist.save();
    }
    super.setName(name);
  }
*/

/*
  static String incSufix(String str) {
    if (str==null || str.length()==0) return(DEFAULTPAGENAME);
    if (str.toLowerCase().endsWith(".png"))
      str = str.substring(0,str.length()-4);
    if (str==null || str.length()==0) return(DEFAULTPAGENAME);
    int  i;
    for (i=str.length()-1;i>=0;i--)
      if (!Character.isDigit(str.charAt(i))) break;
    if (i==str.length()-1) return(str+"0");
    int num= -1;
    try {
      if (i>=0) num = Integer.parseInt(str.substring(i+1,str.length()));
      else return(""+(Integer.parseInt(str)+1));
    } catch (NumberFormatException e){num= -1;}
    return(str.substring(0,i+1)+(num+1));
  }
*/

  public void print(View view,PageFormat format) {
    view.trans.translate(format.getImageableX()/*+format.getImageableWidth()/2.0*/,
      -format.getImageableY()/*-format.getImageableHeight()/2.0*/);
    view.trans.scale(format.getImageableWidth()/box.getWidth(),
        	     format.getImageableWidth()/box.getWidth());
    view.trans.translate(-box.getX(),box.getY());
    System.out.println("printing "+this);
    try {
      view.trans.concatenate(anchorpoint.position.createInverse());
    } catch (NoninvertibleTransformException e) {ErrorLog.exception(e);}
//    System.out.println("my map unit = "+mapunit+" survey map unit = "+view.mapunit);

    view.scale=format.getImageableWidth()/getPosScale(mapunit);
    view.mapscale = new MapScale(view.scale,
        			 Unit.pixel,
        			 view.mapunit,
        			 Print.imagescale);
//    System.out.println("---------- scale = "+view.mapscale);

    view.angle = -anchorpoint.position.angle;
    view.printing = !index;
//    showSelected(view);
    if (comp.showall) view.visible = Layer.all;
    else view.visible = comp.visible;

    if (stack!=null && usestack)
      view.stacking = stack;
    else
      view.stacking = comp.stack;

//    comp.viewChanged();
    comp.paint(view);

    comp.getSurvey().paint(view);
  }

  public void print(View view,PageFormat format,int lines) {
    view.trans.translate(0,lines);
    print(view,format);
  }

  public PageFormat getFormat(Unit globalmapunit) {
    PageFormat form = new PageFormat();
    Paper paper = new Paper();
    Dimension size = getSize(globalmapunit);
    paper.setSize(size.getWidth(),size.getHeight());
    paper.setImageableArea(0,0,size.getWidth(),size.getHeight());
    form.setPaper(paper);
    return(form);
  }

//  public Dimension getSize(){
//    System.out.println("imageunit = "+imageunit+" imagescale = "+Print.imagescale);
//    return(getSize(ressetting,resolution,Unit.pixel.toUnit(imageunit,Print.imagescale)));
//  }

  public Dimension getSize(Unit globalmapunit){
//    System.out.println("imageunit = "+imageunit+" imagescale = "+Print.imagescale);
    return(getSize(ressetting,
        	   resolution,
        	   globalmapunit,
        	   Unit.pixel.toUnit(imageunit,Print.imagescale)));
  }

  public Dimension getPSSize(Unit globalmapunit){
//    System.out.println("imageunit = "+imageunit+" imagescale = "+Print.imagescale);
    return(getSize(ressetting,
        	   resolution,
        	   globalmapunit,
        	   Unit.inch.toUnit(imageunit,Print.imagescale)));
  }

  public Dimension getPrintSize(Unit globalmapunit){
    return(getSize(pressetting,presolution,globalmapunit,Unit.inch.toUnit(printerunit)));
  }

  public Dimension getSize(int set,double res,Unit globalmapunit,double unit) {
    if (set==WIDTHMODE) return(new Dimension((int)(res*unit),(int)(res*unit*subaspect)));
    if (set==HEIGHTMODE) return(new Dimension((int)(res*unit/subaspect),(int)(res*unit)));

    double scale = 1;

    if (set==PIXELMODE)
      scale = getPosScale(globalmapunit)*res/unit;

    if (set==SCALEMODE)
      scale = getPosScale(globalmapunit)/res;

//    System.out.println("scale = "+scale+" unit = "+unit+" aspect = "+aspect);

    return(new Dimension((int)(scale*unit),(int)(scale*unit*subaspect)));
  }

  public double getPosScale(Unit globalmapunit) {
    return(box.getWidth()*mapunit.toUnit(globalmapunit)*
           Math.sqrt(anchorpoint.position.getScaleX()*anchorpoint.position.getScaleY() -
        	     anchorpoint.position.getShearX()*anchorpoint.position.getShearY()));
  }

  public File getFile() {
    File res = file;
    if (res==null) res = PrefPage.pickFile();
    if (res==null) res = new File("");
    if (!res.getName().toLowerCase().endsWith(".png"))
      res = new File(res.toString().concat(".png"));
    return(res);
  }

  public void paint(View view) {
    if (!view.visible.isMember(this)) return;
    if (!view.printing) super.paint(view);
  }

  public int getLevel() {return(super.getLevel()+2);}

  transient PrefPage prefs = null;
  transient javax.swing.JCheckBox usestackbox = null;

  public void getPropertyEdit(Object[] edits,int slot,Set sub, Symbol parent) {
    prefs = new PrefPage(this);
    edits[slot] = prefs.getPane(null);
    ((Component)edits[slot]).setName("Page");

    Container sbox = new javax.swing.Box(javax.swing.BoxLayout.Y_AXIS);

    usestackbox = new javax.swing.JCheckBox("Overide default stacking",usestack);
    sbox.add(usestackbox);
    
    if (stack==null) stack = new Stacking();
    Container res = stack.getPane(comp);
    sbox.add(res);

    edits[slot-1] = sbox;
    sbox.setName("Stacking");

    super.getPropertyEdit(edits,slot-2,sub,parent);
  }

  public void acceptPropertyEdit() {
    super.acceptPropertyEdit();
    prefs.save();

    usestack = usestackbox.isSelected();
    usestackbox = null;

    stack.save();
    stack.clear();

    prefs = null;
  }

  public void abandonPropertyEdit() {
    prefs = null;
    usestackbox = null;

    stack.clear();
    super.abandonPropertyEdit();
  }
}