diff options
Diffstat (limited to 'qtjava/javalib/tutorial/t8/CannonField.java')
-rw-r--r-- | qtjava/javalib/tutorial/t8/CannonField.java | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/qtjava/javalib/tutorial/t8/CannonField.java b/qtjava/javalib/tutorial/t8/CannonField.java new file mode 100644 index 00000000..e9b77ccb --- /dev/null +++ b/qtjava/javalib/tutorial/t8/CannonField.java @@ -0,0 +1,37 @@ +import org.kde.qt.*; + +public class CannonField extends QWidget { + private int ang; + + public CannonField(QWidget parent, String name) { + super(parent, name); + ang = 45; + setPalette(new QPalette(new QColor(250, 250, 200))); + } + + public int angle() { + return ang; + } + + public void setAngle(int degrees) { + if (degrees < 5) + degrees = 5; + if (degrees > 70) + degrees = 70; + if (ang == degrees) + return; + ang = degrees; + repaint(); + emit("angleChanged", ang); + } + + public void paintEvent(QPaintEvent e) { + String s = "Angle = " + ang; + QPainter p = new QPainter(this); + p.drawText(200, 200, s); + } + + public QSizePolicy sizePolicy() { + return new QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding); + } +} |