summaryrefslogtreecommitdiffstats
path: root/qtjava/javalib/tutorial/t9/CannonField.java
diff options
context:
space:
mode:
Diffstat (limited to 'qtjava/javalib/tutorial/t9/CannonField.java')
-rw-r--r--qtjava/javalib/tutorial/t9/CannonField.java43
1 files changed, 43 insertions, 0 deletions
diff --git a/qtjava/javalib/tutorial/t9/CannonField.java b/qtjava/javalib/tutorial/t9/CannonField.java
new file mode 100644
index 00000000..e8bc506f
--- /dev/null
+++ b/qtjava/javalib/tutorial/t9/CannonField.java
@@ -0,0 +1,43 @@
+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) {
+ QPainter p = new QPainter(this);
+
+ p.setBrush(blue());
+ p.setPen(NoPen);
+
+ p.translate(0, rect().bottom());
+ p.drawPie(new QRect(-35, -35, 70, 70), 0, 90*16);
+ p.rotate(-ang);
+ p.drawRect(new QRect(33, -4, 15, 8));
+ }
+
+ public QSizePolicy sizePolicy() {
+ return new QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding);
+ }
+}