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package example; |
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import org.gannacademy.cdf.graphics.Drawable; |
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import org.gannacademy.cdf.graphics.Image; |
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import org.gannacademy.cdf.graphics.Text; |
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import org.gannacademy.cdf.graphics.geom.Rectangle; |
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import org.gannacademy.cdf.graphics.geom.*; |
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import org.gannacademy.cdf.graphics.ui.AppWindow; |
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import java.awt.*; |
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import java.util.ArrayList; |
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import java.util.List; |
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public class GeometryDemo extends AppWindow { |
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public static final double COL_SPACE = 30, COL_WIDTH = 160, ROW_SPACE = 10, ROW_HEIGHT = 120, SPEED = 3; |
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public static final long DELAY = 5000; |
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private List<Drawable> components; |
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private List<Double> headings; |
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private long start; |
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private double scale; |
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private boolean scaleIsIncreasing; |
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public static void main(String[] args) { |
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new GeometryDemo(); |
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} |
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private int columns() { |
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return (int) ((getDrawingPanel().getWidth() - COL_SPACE) / (COL_SPACE + COL_WIDTH)); |
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} |
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private double xCoord(int i) { |
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int col = i % columns(); |
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return COL_SPACE + col * (COL_WIDTH + COL_SPACE); |
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} |
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private double yCoord(int i) { |
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int row = i / columns(); |
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return ROW_SPACE + row * (ROW_HEIGHT + ROW_SPACE); |
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} |
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private Color randomColor() { |
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return new Color((int) (Math.random() * 256.0), (int) (Math.random() * 256.0), (int) (Math.random() * 256.0)); |
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} |
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private Color adjustColor(Color color, int adjustment) { |
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return new Color( |
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Math.max(0, Math.min(255, color.getRed() + adjustment)), |
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Math.max(0, Math.min(255, color.getGreen() + adjustment)), |
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Math.max(0, Math.min(255, color.getBlue() + adjustment)) |
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); |
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} |
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@Override |
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protected void setup() { |
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Class[] types = { |
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Rectangle.class, |
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Ellipse.class, |
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RoundRectangle.class, |
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Arc.class, |
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Line.class, |
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CubicCurve.class, |
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QuadCurve.class, |
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Path.class, |
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Text.class, |
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Image.class |
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}; |
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components = new ArrayList<>(); |
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headings = new ArrayList<>(); |
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scaleIsIncreasing = true; |
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scale = 1.0; |
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double rows = (int) (Math.sqrt(types.length)); |
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int cols = (int) (Math.ceil((double) types.length / rows)); |
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setSize((int) (COL_SPACE + cols * (COL_WIDTH + COL_SPACE)), (int) (ROW_SPACE + rows * (ROW_HEIGHT + ROW_SPACE))); |
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for (int i = 0; i < types.length; i++) { |
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headings.add(Math.random() * 360.0); |
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if (types[i] == Ellipse.class) { |
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components.add(new Ellipse(xCoord(i), yCoord(i), COL_WIDTH, ROW_HEIGHT, getDrawingPanel())); |
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} else if (types[i] == RoundRectangle.class) { |
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components.add(new RoundRectangle(xCoord(i), yCoord(i), COL_WIDTH, ROW_HEIGHT, COL_SPACE, ROW_SPACE, getDrawingPanel())); |
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} else if (types[i] == Arc.class) { |
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components.add(new Arc(xCoord(i), yCoord(i), COL_WIDTH, ROW_HEIGHT, Math.random() * 360, Math.random() * 360, getDrawingPanel())); |
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} else if (types[i] == Line.class) { |
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components.add(new Line(xCoord(i), yCoord(i), xCoord(i) + COL_WIDTH, yCoord(i) + ROW_HEIGHT, getDrawingPanel())); |
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} else if (types[i] == CubicCurve.class) { |
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components.add(new CubicCurve(xCoord(i), yCoord(i), xCoord(i), yCoord(i) + ROW_HEIGHT, xCoord(i) + COL_WIDTH, yCoord(i), xCoord(i) + COL_WIDTH, yCoord(i) + ROW_HEIGHT, getDrawingPanel())); |
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} else if (types[i] == QuadCurve.class) { |
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components.add(new QuadCurve(xCoord(i), yCoord(i), xCoord(i) + COL_WIDTH, yCoord(i), xCoord(i) + COL_WIDTH, yCoord(i) + ROW_HEIGHT, getDrawingPanel())); |
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} else if (types[i] == Path.class) { |
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Path path = new Path(getDrawingPanel()); |
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path.moveTo(xCoord(i), yCoord(i)); |
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path.lineTo(xCoord(i) + COL_WIDTH, yCoord(i) + ROW_HEIGHT); |
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path.curveTo(xCoord(i) + COL_WIDTH, yCoord(i), xCoord(i), yCoord(i), xCoord(i), yCoord(i) + ROW_HEIGHT); |
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path.quadTo(xCoord(i) + COL_WIDTH, yCoord(i) + ROW_HEIGHT, xCoord(i) + COL_WIDTH, yCoord(i)); |
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components.add(path); |
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} else if (types[i] == Text.class) { |
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Text text = new Text(" Gann Graphics ", xCoord(i), yCoord(i), getDrawingPanel()); |
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text.setWidth(COL_WIDTH); |
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text.translate(0, text.getMaxAscent()); |
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components.add(text); |
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} else if (types[i] == Image.class) { |
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Image image = new Image("/java-logo.png", xCoord(i), yCoord(i), getDrawingPanel()); |
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image.setWidth(COL_WIDTH); |
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image.setHeight(ROW_HEIGHT); |
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components.add(image); |
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} else { |
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components.add(new Rectangle(xCoord(i), yCoord(i), COL_WIDTH, ROW_HEIGHT, getDrawingPanel())); |
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} |
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components.get(i).setStrokeColor(randomColor()); |
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components.get(i).setFillColor(adjustColor(components.get(i).getStrokeColor(), 50)); |
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components.get(i).setStroke(new BasicStroke((float) (Math.random() * Math.min(COL_SPACE, ROW_SPACE)))); |
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} |
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start = System.currentTimeMillis(); |
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} |
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public void loop() { |
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if (System.currentTimeMillis() > start + DELAY) { |
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if (scaleIsIncreasing) { |
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if (scale < 1.5) { |
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scale += 0.1; |
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} else { |
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scaleIsIncreasing = false; |
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} |
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} else { |
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if (scale > 0.5) { |
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scale -= 0.1; |
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} else { |
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scaleIsIncreasing = true; |
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} |
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} |
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for (int i = 0; i < components.size(); i++) { |
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components.get(i).translate(Math.cos(headings.get(i)) * SPEED, Math.sin(headings.get(i)) * SPEED); |
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components.get(i).setWidth(COL_WIDTH * scale); |
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if (!(components.get(i) instanceof Text)) { |
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components.get(i).setHeight(ROW_HEIGHT * scale); |
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} |
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if (components.get(i).getX() < 0 - COL_WIDTH) { |
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components.get(i).setLocation(getDrawingPanel().getWidth(), components.get(i).getY()); |
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} else if (components.get(i).getX() > getDrawingPanel().getWidth()) { |
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components.get(i).setLocation(0 - COL_WIDTH, components.get(i).getY()); |
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} |
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if (components.get(i).getY() < 0 - ROW_HEIGHT) { |
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components.get(i).setLocation(components.get(i).getX(), getDrawingPanel().getHeight()); |
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} else if (components.get(i).getY() > getDrawingPanel().getHeight()) { |
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components.get(i).setLocation(components.get(i).getX(), 0 - ROW_HEIGHT); |
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} |
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} |
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} |
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sleep(100); |
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} |
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} |
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gann-cdf /
graphics
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