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package myproject.model.swing;

/**
 * A translator from relative model space to screen graphics.
 */
abstract class Translator {
  double tX;
  double tY;
  double tWidth;
  double tHeight;
  double tScaleFactor;
  Translator(double tX, double tY, double tWidth, double tHeight, double tScaleFactor) {
    this.tX = tX;
    this.tY = tY;
    this.tWidth = tWidth;
    this.tHeight = tHeight;
    this.tScaleFactor = tScaleFactor;
  }
  int scale(double arg) {
    return (int) Math.ceil(arg * tScaleFactor);
  }
  abstract int getX(double x, double y, double width, double height);
  abstract int getY(double x, double y, double width, double height);
  abstract int getWidth(double width, double height);
  abstract int getHeight(double width, double height);
}

class TranslatorWE extends Translator {
  TranslatorWE(double tX, double tY, double tWidth, double tHeight, double tScaleFactor) {
    super(tX, tY, tWidth, tHeight, tScaleFactor);
  }
  int getX(double x, double y, double width, double height) { return scale(tX+x); }
  int getY(double x, double y, double width, double height) { return scale(tY+y); }
  int getWidth(double width, double height) { return scale(width); }
  int getHeight(double width, double height)  { return scale(height); }
}

class TranslatorEW extends Translator {
  TranslatorEW(double tX, double tY, double tWidth, double tHeight, double tScaleFactor) {
    super(tX, tY, tWidth, tHeight, tScaleFactor);
  }
  int getX(double x, double y, double width, double height) { return scale(tX+tWidth-x-width); }
  int getY(double x, double y, double width, double height) { return scale(tY+tHeight-y-height); }
  int getWidth(double width, double height) { return scale(width); }
  int getHeight(double width, double height)  { return scale(height); }
}

class TranslatorNS extends Translator {
  TranslatorNS(double tX, double tY, double tWidth, double tHeight, double tScaleFactor) {
    super(tX, tY, tWidth, tHeight, tScaleFactor);
  }
  int getX(double x, double y, double width, double height) { return scale(tX+y); }
  int getY(double x, double y, double width, double height) { return scale(tY+x); }
  int getWidth(double width, double height) { return scale(height); }
  int getHeight(double width, double height)  { return scale(width); }
}

class TranslatorSN extends Translator {
  TranslatorSN(double tX, double tY, double tWidth, double tHeight, double tScaleFactor) {
    super(tX, tY, tWidth, tHeight, tScaleFactor);
  }
  int getX(double x, double y, double width, double height) { return scale(tX+tHeight-y-height); }
  int getY(double x, double y, double width, double height) { return scale(tY+tWidth-x-width); }
  int getWidth(double width, double height) { return scale(height); }
  int getHeight(double width, double height)  { return scale(width); }
}