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package projectstems.paint; |
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import org.gannacademy.cdf.graphics.Drawable; |
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import org.gannacademy.cdf.graphics.geom.Rectangle; |
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import org.gannacademy.cdf.graphics.ui.AppWindow; |
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import java.awt.event.MouseEvent; |
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import java.awt.event.MouseListener; |
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import java.awt.event.MouseMotionListener; |
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import java.awt.geom.Point2D; |
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public class PaintApp extends AppWindow implements MouseListener, MouseMotionListener { |
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private Rectangle rectButton; |
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private Tool active; |
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private Point2D start; |
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private Drawable current; |
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public static void main(String[] args) { |
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new PaintApp(); |
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} |
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@Override |
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protected void setup() { |
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rectButton = new Rectangle(5, 5, 15, 15, getDrawingPanel()); |
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active = Tool.none; |
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getDrawingPanel().addMouseListener(this); |
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getDrawingPanel().addMouseMotionListener(this); |
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} |
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@Override |
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public void mouseClicked(MouseEvent e) { |
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if (rectButton.contains(e.getPoint())) { |
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active = Tool.Rect; |
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} |
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} |
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@Override |
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public void mousePressed(MouseEvent e) { |
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switch (active) { |
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case Rect: |
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if (!rectButton.contains(e.getPoint())) { |
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start = e.getPoint(); |
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current = new Rectangle(e.getX(), e.getY(), 1, 1, getDrawingPanel()); |
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} |
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case none: |
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// do nothing |
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} |
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} |
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@Override |
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public void mouseReleased(MouseEvent e) { |
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current = null; |
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} |
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@Override |
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public void mouseEntered(MouseEvent e) { |
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} |
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@Override |
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public void mouseExited(MouseEvent e) { |
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} |
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@Override |
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public void mouseDragged(MouseEvent e) { |
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if (active != Tool.none) { |
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current.setWidth(Math.abs(e.getX() - start.getX())); |
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current.setHeight(Math.abs(e.getY() - start.getY())); |
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if (e.getX() < start.getX()) { |
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current.setX(e.getX()); |
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} |
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if (e.getY() < start.getY()) { |
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current.setY(e.getY()); |
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} |
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} |
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} |
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@Override |
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public void mouseMoved(MouseEvent e) { |
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} |
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private enum Tool {Rect, none} |
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} |
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gann-cdf /
graphics
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