Beispiel #1
0
	/**
	 * 获得图片的矩形大小
	 * 
	 * @return
	 */
	private Rectangle getCanvasDimension(JpdlModel jpdlModel) {
		Rectangle rectangle = new Rectangle();
		Rectangle rect;
		for (Node node : jpdlModel.getNodes().values()) {
			rect = node.getRectangle();
			if (rect.getMaxX() > rectangle.getMaxX()) {
				rectangle.width = (int) rect.getMaxX();
			}
			if (rect.getMaxY() > rectangle.getMaxY()) {
				rectangle.height = (int) rect.getMaxY();
			}
			for (Transition transition : node.getTransitions()) {
				List<Point> trace = transition.getLineTrace();
				for (Point point : trace) {
					if (rectangle.getMaxX() < point.x) {
						rectangle.width = point.x;
					}
					if (rectangle.getMaxY() < point.y) {
						rectangle.height = point.y;
					}
				}
			}
		}
		rectangle.width += 60;
		rectangle.height += 20;
		return rectangle;
	}
Beispiel #2
0
	/**
	 * @param g2
	 * @throws IOException
	 */
	private void drawTransition(Map<String, Node> nodes, Graphics2D g2) throws IOException {
		g2.setStroke(DEFAULT_LINE_STROKE);
		g2.setColor(DEFAULT_LINE_STROKE_COLOR);
		for (Node node : nodes.values()) {
			for (Transition transition : node.getTransitions()) {
				String to = transition.getTo();
				Node toNode = nodes.get(to);
				List<Point> trace = new LinkedList<Point>(transition.getLineTrace());
				int len = trace.size() + 2;
				trace.add(0, new Point(node.getCenterX(), node.getCenterY()));
				trace.add(new Point(toNode.getCenterX(), toNode.getCenterY()));
				int[] xPoints = new int[len];
				int[] yPoints = new int[len];
				for (int i = 0; i < len; i++) {
					xPoints[i] = trace.get(i).x;
					yPoints[i] = trace.get(i).y;
				}
				final int taskGrow = 4;
				final int smallGrow = -2;
				int grow = 0;
				if (nodeInfos.get(node.getType()) != null) {
					grow = smallGrow;
				} else {
					grow = taskGrow;
				}
				Point p = GeometryUtils.getRectangleLineCrossPoint(node.getRectangle(), new Point(xPoints[1],
						yPoints[1]), grow);
				if (p != null) {
					xPoints[0] = p.x;
					yPoints[0] = p.y;
				}
				if (nodeInfos.get(toNode.getType()) != null) {
					grow = smallGrow;
				} else {
					grow = taskGrow;
				}
				p = GeometryUtils.getRectangleLineCrossPoint(toNode.getRectangle(), new Point(xPoints[len - 2],
						yPoints[len - 2]), grow);
				if (p != null) {
					xPoints[len - 1] = p.x;
					yPoints[len - 1] = p.y;
				}
				g2.drawPolyline(xPoints, yPoints, len);
				drawArrow(g2, xPoints[len - 2], yPoints[len - 2], xPoints[len - 1], yPoints[len - 1]);
				String label = transition.getLabel();
				if (label != null && label.length() > 0) {
					int cx, cy;
					if (len % 2 == 0) {
						cx = (xPoints[len / 2 - 1] + xPoints[len / 2]) / 2;
						cy = (yPoints[len / 2 - 1] + yPoints[len / 2]) / 2;
					} else {
						cx = xPoints[len / 2];
						cy = yPoints[len / 2];
					}
					Point labelPoint = transition.getLabelPosition();
					if (labelPoint != null) {
						cx += labelPoint.x;
						cy += labelPoint.y;
					}
					cy -= RECT_OFFSET_Y + RECT_OFFSET_Y / 2;
					g2.drawString(label, cx, cy);
				}
			}
		}
	}