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73 lines
1.4 KiB
73 lines
1.4 KiB
import org.kde.qt.*;
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public class CannonField extends TQWidget {
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private int ang;
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private int f;
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public CannonField(TQWidget parent, String name) {
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super(parent, name);
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ang = 45;
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setPalette(new TQPalette(new TQColor(250, 250, 200)));
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}
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public int angle() {
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return ang;
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}
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public void setAngle(int degrees) {
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if (degrees < 5)
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degrees = 5;
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if (degrees > 70)
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degrees = 70;
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if (ang == degrees)
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return;
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ang = degrees;
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repaint();
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emit("angleChanged", ang);
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}
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public int force() {
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return f;
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}
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public void setForce(int newton) {
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if (newton < 0)
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newton = 0;
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if (f == newton)
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return;
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f = newton;
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emit("forceChanged", f);
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}
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private TQRect cannonRect() {
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TQRect r = new TQRect(0, 0, 50, 50);
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r.moveBottomLeft(rect().bottomLeft());
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return r;
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}
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public void paintEvent(TQPaintEvent e) {
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if (!e.rect().intersects(cannonRect()))
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return;
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TQRect cr = cannonRect();
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TQPixmap pix = new TQPixmap(cr.size());
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pix.fill(new TQColor(250, 250, 200));
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TQPainter p = new TQPainter(pix);
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p.setBrush(blue());
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p.setPen(NoPen);
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p.translate(0, pix.height() - 1);
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p.drawPie(new TQRect(-35,-35, 70, 70), 0, 90*16);
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p.rotate(-ang);
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p.drawRect(new TQRect(33, -4, 15, 8));
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p.end();
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p.begin(this);
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p.drawPixmap(cr.topLeft(), pix);
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}
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public TQSizePolicy sizePolicy() {
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return new TQSizePolicy(TQSizePolicy.Expanding, TQSizePolicy.Expanding);
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}
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}
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