help for advanced operator panels

refs 907

org.fortiss.af3.operatorpanel.ui/trunk/src/org/fortiss/af3/operatorpanel/ui/simulator/views/OPVCAreaInput.java

@@ -28,6 +28,9 @@ import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.widgets.Canvas;
 import org.eclipse.swt.widgets.Composite;
+import org.fortiss.af3.expression.model.types.TBool;
+import org.fortiss.af3.expression.model.types.TDouble;
+import org.fortiss.af3.expression.model.types.TInt;
 import org.fortiss.af3.operatorpanel.model.OPAreaInput;
 import org.fortiss.af3.operatorpanel.model.OPITermInput;
 
@@ -37,10 +40,14 @@ import org.fortiss.af3.operatorpanel.model.OPITermInput;
  * @author hoelzl
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating GREEN Hash: AA638525EB95EE8A04023BD965FD03FB
+ * @ConQAT.Rating YELLOW Hash: 5D28CE94CBA0BFD0428ABA2957CD62D6
  */
 public class OPVCAreaInput extends OPVCInputControlBase<OPAreaInput, Canvas> {
 
+	/** The type texts. */
+	private static final String[][] TYPE_TEXTS = { {"false", "NoVal", "true"},
+			{"-100", "0", "100"}, {"0.0", "0.5", "1.0"}};
+
 	/** Stores the text field control. */
 	private JoystickCanvas joystickCanvas;
 
@@ -109,14 +116,42 @@ public class OPVCAreaInput extends OPVCInputControlBase<OPAreaInput, Canvas> {
 			e.gc.setForeground(e.gc.getDevice().getSystemColor(SWT.COLOR_DARK_GRAY));
 			e.gc.setBackground(e.gc.getDevice().getSystemColor(SWT.COLOR_GRAY));
 			e.gc.fillRectangle(e.x, e.y, w, h);
+			// grid
 			e.gc.drawLine(w3, 0, w3, h);
 			e.gc.drawLine(w - w3, 0, w - w3, h);
 			e.gc.drawLine(0, h3, w, h3);
 			e.gc.drawLine(0, h - h3, w, h - h3);
 			e.gc.setForeground(e.gc.getDevice().getSystemColor(SWT.COLOR_BLACK));
 			e.gc.drawRectangle(e.x, e.y, w, h);
+			// cursor
 			e.gc.setBackground(e.gc.getDevice().getSystemColor(SWT.COLOR_BLACK));
 			e.gc.fillOval(value.x - 6, value.y - 6, 12, 12);
+			// text
+			String[] texts = getTexts();
+			e.gc.setForeground(e.gc.getDevice().getSystemColor(SWT.COLOR_YELLOW));
+
+			Point ext = e.gc.textExtent(texts[0], SWT.DRAW_TRANSPARENT);
+			e.gc.drawString(texts[0], 2, h - 1 - ext.y, true);
+
+			ext = e.gc.textExtent(texts[1], SWT.DRAW_TRANSPARENT);
+			e.gc.drawString(texts[1], (w - ext.x) / 2, (h - ext.y) / 2, true);
+
+			ext = e.gc.textExtent(texts[2], SWT.DRAW_TRANSPARENT);
+			e.gc.drawString(texts[2], w - 1 - ext.x, 1, true);
+		}
+
+		/** Returns the texts for the current type of the item. */
+		private String[] getTexts() {
+			if(modelItem.getType() instanceof TBool) {
+				return TYPE_TEXTS[0];
+			}
+			if(modelItem.getType() instanceof TInt) {
+				return TYPE_TEXTS[1];
+			}
+			if(modelItem.getType() instanceof TDouble) {
+				return TYPE_TEXTS[2];
+			}
+			return new String[] {"", "", ""};
 		}
 
 		/** {@inheritDoc} */