/* * File: .java * ---------------------------- * This program is a stub for the GraphicsHierarchy problem, which * draws a partial diagram of the acm.graphics hierarchy. */import acm.program.*;import acm.graphics.*;public class GraphicsHierarchy extends GraphicsProgram {/* define your constants here. */public void run() {// You fill this in// GLabel label1 = new GLabel("Program");// double lbWidth = label1.getWidth();// double lbHeight = (gre1.getHeight() - label1.getAscent())/2;// double lbX = gre1.getX() + (gre1.getWidth() - lbWidth)/2;// double lbY = gre1.getY() + lbHeight + label1.getHeight()/2;// label1.move(lbX,lbY);// add(label1);double width = getWidth() / 4;double height = getHeight() / 6;double x1 = 0.3, x2 = 1.5, x3 = 2.7;double y = 3;drawRect(width, height, x1, x2, x3, y);drawLine(width, height, x1, x2, x3);drawLabel(width, height, x2, x2, x3, y);}public void drawRect(double width, double height, double x1, double x2,double x3, double y) {GRect rect1 = new GRect(setRectLocation(width, x2), height, width,height);GRect rect2 = new GRect(setRectLocation(width, x1), setRectLocation(height, y), width, height);GRect rect3 = new GRect(setRectLocation(width, x2), setRectLocation(height, y), width, height);GRect rect4 = new GRect(setRectLocation(width, x3), setRectLocation(height, y), width, height);add(rect1);add(rect2);add(rect3);add(rect4);}public double setRectLocation(double widthOrHeight, double multiple) {return (widthOrHeight * multiple);}public void drawLine(double width, double height, double x1, double x2,double x3) {GLine line1 = new GLine(width * 1.5 + width / 2, height * 2,setLineLocation(width, x1), height * 3);GLine line2 = new GLine(width * 1.5 + width / 2, height * 2,setLineLocation(width, x2), height * 3);GLine line3 = new GLine(width * 1.5 + width / 2, height * 2,setLineLocation(width, x3), height * 3);add(line1);add(line2);add(line3);}public double setLineLocation(double width, double x) {return (width * x + width / 2);}public void drawLabel(double width, double height, double x1, double x2,double x3, double y) {GLabel label1 = new GLabel("Program");add(label1, setLabelLocationX(label1, width, x2),setLabelLocationY(label1, height, 1));GLabel label2 = new GLabel("GraphicsProgram");add(label2, setLabelLocationX(label2, width, x1 / 5),setLabelLocationY(label2, height, y));GLabel label3 = new GLabel("ConsoleProgram");add(label3, setLabelLocationX(label3, width, x2),setLabelLocationY(label3, height, y));GLabel label4 = new GLabel("DialogProgram");add(label4, setLabelLocationX(label4, width, x3),setLabelLocationY(label4, height, y));}public double setLabelLocationX(GLabel label, double width, double x) {return ((setRectLocation(width, x) - label.getWidth() / 2 + width / 2));}public double setLabelLocationY(GLabel label, double height, double y) {return (setRectLocation(height, y) + label.getAscent() / 2 + height / 2);}}
