91 lines
2.8 KiB
C#
91 lines
2.8 KiB
C#
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using java.awt.image;
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using java.awt.@event;
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using javax.swing;
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namespace SpaceFlint.Demos
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{
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public class JavaForm : JFrame, ComponentListener, HAL
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{
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BufferedImage canvas;
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private Timer timer;
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private System.Action frameCallback;
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public JavaForm(System.Action<HAL> initFunc, string suffix)
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{
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setTitle("Bluebonnet Demo - JavaForm - " + suffix);
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setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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setSize(640, 480);
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componentResized(null);
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addComponentListener(this);
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initFunc(this);
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ActionListener.Delegate timerDelegate = (ActionEvent e) =>
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{
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frameCallback();
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repaint();
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};
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timer = new Timer(16, timerDelegate.AsInterface());
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timer.start();
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add(new MyPane(this));
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setVisible(true);
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}
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//
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// methods implementing the java.awt.event.ComponentListener interface.
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// note the required [java.attr.RetainName] attribute, when implementing
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// methods from an imported java interface.
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//
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[java.attr.RetainName] public void componentHidden(ComponentEvent e) => componentResized(e);
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[java.attr.RetainName] public void componentMoved(ComponentEvent e) => componentResized(e);
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[java.attr.RetainName] public void componentShown(ComponentEvent e) => componentResized(e);
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[java.attr.RetainName] public void componentResized(ComponentEvent e)
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{
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if ( canvas == null
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|| canvas.getWidth() != getWidth()
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|| canvas.getHeight() != getHeight())
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{
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canvas = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_INT_ARGB);
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}
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}
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//
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// implement the HAL interface
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//
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void HAL.Frame(System.Action callback) => frameCallback = callback;
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void HAL.Pixel(float x, float y, float r, float g, float b)
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{
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var x1 = Clamp(x, canvas.getWidth());
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var y1 = Clamp(y, canvas.getHeight());
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int r1 = Clamp(r, 256);
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int g1 = Clamp(g, 256);
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int b1 = Clamp(b, 256);
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canvas.setRGB(x1, y1, (0xFF << 24) | (r1 << 16) | (g1 << 8) | b1);
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int Clamp(float a, int b) => System.Math.Min(System.Math.Max((int) (a * b), 0), b - 1);
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}
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float HAL.Random() => (float) java.lang.Math.random();
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class MyPane : JPanel
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{
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JavaForm form;
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public MyPane(JavaForm form) => this.form = form;
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protected override void paintComponent(java.awt.Graphics g)
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{
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base.paintComponent(g);
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g.drawImage(form.canvas, 0, 0, null);
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}
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}
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}
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}
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