Blackberry JAVA DEVELOPMENT ENVIRONMENT - - DEVELOPMENT GUIDE Manual page 28

Development Guide
protected void paint(Graphics graphics) {
int textX, textY, textWidth;
int w = getWidth();
switch(_shape) {
case TRIANGLE:
int h = (w>>1);
int m = (w>>1)-1;
graphics.drawLine(0, h-1, m, 0);
graphics.drawLine(m, 0, w-1, h-1);
graphics.drawLine(0, h-1, w-1, h-1);
textWidth = Math.min(_labelWidth,h);
textX = (w - textWidth) >> 1;
textY = h >> 1;
break;
case OCTAGON:
int x = 5*w/17;
int x2 = w-x-1;
int x3 = w-1;
graphics.drawLine(0, x, 0, x2);
graphics.drawLine(x3, x, x3, x2);
graphics.drawLine(x, 0, x2, 0);
graphics.drawLine(x, x3, x2, x3);
graphics.drawLine(0, x, x, 0);
graphics.drawLine(0, x2, x, x3);
graphics.drawLine(x2, 0, x3, x);
graphics.drawLine(x2, x3, x3, x2);
textWidth = Math.min(_labelWidth, w - 6);
textX = (w-textWidth) >> 1;
textY = (w-_labelHeight) >> 1;
break;
case RECTANGLE: default:
graphics.drawRect(0, 0, w, getHeight());
textX = 4;
textY = 2;
textWidth = w - 6;
break;
}
graphics.drawText(_label, textX, textY, (int)( getStyle() &
DrawStyle.ELLIPSIS | DrawStyle.HALIGN_MASK ), textWidth );
}
9. Implement the Field set() and get() methods. In the following code sample, we implement the
Field.getLabel(), Field. getShape(), Field. setLabel(String label), and
Field. setShape(int shape) methods to return the instance variables of the custom field.
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UI components