Java Code Examples for java.awt.Graphics2D#drawPolyline()

@Override
public void DoPaint(Graphics2D g) {
    super.DoPaint(g);
    Stroke bkp = g.getStroke();

    g.setPaint(getForeColor());
    if (getPontosParaDesenho() != null) {
        if (isDashed()) {
            g.setStroke(new BasicStroke(getLargura(), BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 0, new float[]{1, 2}, 0));
        } else {
            g.setStroke(new BasicStroke(
                    getLargura(),
                    BasicStroke.CAP_ROUND,
                    BasicStroke.JOIN_ROUND));
        }

        g.drawPolyline(pontosParaDesenhoX, pontosParaDesenhoY, pontosParaDesenhoX.length);
    }
    g.setStroke(bkp);
}
 

private void drawHead(Graphics2D _g2, int a1, int b1, Color _color, Color _fill) {
  _g2.setStroke(getRealStyle().getLineStroke());
  if(headPoints==0) {
    _g2.setColor(_color);
    _g2.drawLine(a1, b1, aCoord[div], bCoord[div]);
    return;
  }
  int n = headPoints-1;
  headA[n] = a1;
  headB[n] = b1;
  if((_fill!=null)&&getRealStyle().isDrawingFill()) {
    _g2.setPaint(_fill);
    _g2.fillPolygon(headA, headB, n);
  }
  _g2.setColor(_color);
  _g2.drawPolyline(headA, headB, headPoints);
}
 

private static void test(final Graphics2D g, final int[] arr) {
    g.drawPolygon(arr, arr, arr.length);
    g.drawPolygon(new Polygon(arr, arr, arr.length));
    g.fillPolygon(arr, arr, arr.length);
    g.fillPolygon(new Polygon(arr, arr, arr.length));
    g.drawPolyline(arr, arr, arr.length);
}
 

private static void test(final Graphics2D g, final int[] arr) {
    g.drawPolygon(arr, arr, arr.length);
    g.drawPolygon(new Polygon(arr, arr, arr.length));
    g.fillPolygon(arr, arr, arr.length);
    g.fillPolygon(new Polygon(arr, arr, arr.length));
    g.drawPolyline(arr, arr, arr.length);
}
 

private static void test(final Graphics2D g, final int[] arr) {
    g.drawPolygon(arr, arr, arr.length);
    g.drawPolygon(new Polygon(arr, arr, arr.length));
    g.fillPolygon(arr, arr, arr.length);
    g.fillPolygon(new Polygon(arr, arr, arr.length));
    g.drawPolyline(arr, arr, arr.length);
}
 

private static void test(final Graphics2D g, final int[] arr) {
    g.drawPolygon(arr, arr, arr.length);
    g.drawPolygon(new Polygon(arr, arr, arr.length));
    g.fillPolygon(arr, arr, arr.length);
    g.fillPolygon(new Polygon(arr, arr, arr.length));
    g.drawPolyline(arr, arr, arr.length);
}
 

@Override
public void paintInstance(InstancePainter painter) {
	Graphics2D g = (Graphics2D) painter.getGraphics();
	Bounds bds = painter.getInstance().getBounds();
	int x = bds.getX();
	int y = bds.getY();
	g.setColor(painter.getAttributeValue(StdAttr.ATTR_LABEL_COLOR));
	painter.drawLabel();
	g.setColor(Color.BLACK);
	boolean drawUp;
	if (painter.getShowState()) {
		ProgrammableGeneratorState state = getState(painter);
		painter.drawRoundBounds(state.sending.getColor());
		drawUp = state.sending == Value.TRUE;
	} else {
		painter.drawBounds(Color.BLACK);
		drawUp = true;
	}
	g.setColor(Color.WHITE);
	x += 10;
	y += 10;
	int[] xs = { x + 1, x + 1, x + 4, x + 4, x + 7, x + 7 };
	int[] ys;
	if (drawUp) {
		ys = new int[] { y + 5, y + 3, y + 3, y + 7, y + 7, y + 5 };
	} else {
		ys = new int[] { y + 5, y + 7, y + 7, y + 3, y + 3, y + 5 };
	}
	g.drawPolyline(xs, ys, xs.length);
	GraphicsUtil.switchToWidth(g, 2);
	xs = new int[] { x - 5, x - 5, x + 1, x + 1, x - 4 };
	ys = new int[] { y + 5, y - 5, y - 5, y, y };
	g.drawPolyline(xs, ys, xs.length);
	painter.drawPorts();
}
 

private static void test(final Graphics2D g, final int[] arr) {
    g.drawPolygon(arr, arr, arr.length);
    g.drawPolygon(new Polygon(arr, arr, arr.length));
    g.fillPolygon(arr, arr, arr.length);
    g.fillPolygon(new Polygon(arr, arr, arr.length));
    g.drawPolyline(arr, arr, arr.length);
}
 

private static void test(final Graphics2D g, final int[] arr) {
    g.drawPolygon(arr, arr, arr.length);
    g.drawPolygon(new Polygon(arr, arr, arr.length));
    g.fillPolygon(arr, arr, arr.length);
    g.fillPolygon(new Polygon(arr, arr, arr.length));
    g.drawPolyline(arr, arr, arr.length);
}
 

private static void test(final Graphics2D g, final int[] arr) {
    g.drawPolygon(arr, arr, arr.length);
    g.drawPolygon(new Polygon(arr, arr, arr.length));
    g.fillPolygon(arr, arr, arr.length);
    g.fillPolygon(new Polygon(arr, arr, arr.length));
    g.drawPolyline(arr, arr, arr.length);
}
 

protected void paint(XYItem item, List<ItemSelection> highlighted,
                     List<ItemSelection> selected, Graphics2D g,
                     Rectangle dirtyArea, SynchronousXYChartContext context) {

    int valuesCount = item.getValuesCount();
    int extraTrailing = fillColor != null ? 2 : 0;

    Rectangle dirtyExtended = new Rectangle(dirtyArea);
    dirtyExtended.x -= lineWidth;
    dirtyExtended.width += lineWidth * 2;
    int[][] idxs = computer.getVisible(dirtyExtended, valuesCount, context, 1,
                                       extraTrailing);
    if (idxs == null) return;
    int[] visibleIndexes = idxs[0];
    int npoints = idxs[1][0];
    int[][] points = computer.createPoints(visibleIndexes, npoints, item,
                                           dataFactor, context);

    if (fillColor != null) {
        points[0][npoints - 2] = points[0][npoints - 3];
        points[1][npoints - 2] = computer.getZeroY(context);
        points[0][npoints - 1] = points[0][0];
        points[1][npoints - 1] = points[1][npoints - 2];

        POLYGON.xpoints = points[0];
        POLYGON.ypoints = points[1];
        POLYGON.npoints = npoints;

        g.setPaint(fillColor);
        g.fill(POLYGON);
    }

    if (lineColor != null) {
        g.setPaint(lineColor);
        g.setStroke(lineStroke);
        g.drawPolyline(points[0], points[1], npoints - extraTrailing);
    }
}
 

private static void test(final Graphics2D g, final int[] arr) {
    g.drawPolygon(arr, arr, arr.length);
    g.drawPolygon(new Polygon(arr, arr, arr.length));
    g.fillPolygon(arr, arr, arr.length);
    g.fillPolygon(new Polygon(arr, arr, arr.length));
    g.drawPolyline(arr, arr, arr.length);
}
 

@Override
protected void paintWidget() {
    Graphics2D g = this.getGraphics();

    if (xPoints.length == 0 || Math.abs(xPoints[0] - xPoints[xPoints.length - 1]) > 2000) {
        return;
    }

    //g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
    //g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
    //g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);

    DiagramScene ds = (DiagramScene) this.getScene();
    boolean shouldHide = false;//ds.getShouldHide(this);

    Composite oldComposite = null;
    if (shouldHide) {
        Color c = new Color(255 - (255 - color.getRed()) / WHITE_FACTOR, 255 - (255 - color.getGreen()) / WHITE_FACTOR, 255 - (255 - color.getBlue()) / WHITE_FACTOR);
        g.setPaint(c);
    } else {
        g.setPaint(color);
    }

    if (split) {
        for (int i = 1; i < controlPoints.size(); i++) {
            Point prev = controlPoints.get(i - 1);
            Point cur = controlPoints.get(i);
            if (cur == null || prev == null) {
                continue;
            }

            g.drawLine(prev.x, prev.y, cur.x, cur.y);
        }
    } else {
        g.drawPolyline(xPoints, yPoints, pointCount);
    }

    /*for(int i=0; i<xPoints.length; i++) {
    int x = xPoints[i];
    int y = yPoints[i];
    g.fillOval(x - 2, y - 2, 4, 4);
    }*/

    if (xPoints.length >= 2) {
        Graphics2D g2 = (Graphics2D) g.create();
        int xOff = xPoints[xPoints.length - 2] - xPoints[xPoints.length - 1];
        int yOff = yPoints[yPoints.length - 2] - yPoints[yPoints.length - 1];
        if (xOff == 0 && yOff == 0 && yPoints.length >= 3) {
            xOff = xPoints[xPoints.length - 3] - xPoints[xPoints.length - 1];
            yOff = yPoints[yPoints.length - 3] - yPoints[yPoints.length - 1];
        }
        g2.translate(xPoints[xPoints.length - 1], yPoints[yPoints.length - 1]);
        g2.rotate(Math.atan2(yOff, xOff));

        g2.scale(0.55, 0.80);
        AnchorShape.TRIANGLE_FILLED.paint(g2, false);
    }
}
 

@Override
protected void paintWidget() {
    Graphics2D g = this.getGraphics();

    if (xPoints.length == 0 || Math.abs(xPoints[0] - xPoints[xPoints.length - 1]) > 2000) {
        return;
    }

    //g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
    //g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
    //g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);

    DiagramScene ds = (DiagramScene) this.getScene();
    boolean shouldHide = false;//ds.getShouldHide(this);

    Composite oldComposite = null;
    if (shouldHide) {
        Color c = new Color(255 - (255 - color.getRed()) / WHITE_FACTOR, 255 - (255 - color.getGreen()) / WHITE_FACTOR, 255 - (255 - color.getBlue()) / WHITE_FACTOR);
        g.setPaint(c);
    } else {
        g.setPaint(color);
    }

    if (split) {
        for (int i = 1; i < controlPoints.size(); i++) {
            Point prev = controlPoints.get(i - 1);
            Point cur = controlPoints.get(i);
            if (cur == null || prev == null) {
                continue;
            }

            g.drawLine(prev.x, prev.y, cur.x, cur.y);
        }
    } else {
        g.drawPolyline(xPoints, yPoints, pointCount);
    }

    /*for(int i=0; i<xPoints.length; i++) {
    int x = xPoints[i];
    int y = yPoints[i];
    g.fillOval(x - 2, y - 2, 4, 4);
    }*/

    if (xPoints.length >= 2) {
        Graphics2D g2 = (Graphics2D) g.create();
        int xOff = xPoints[xPoints.length - 2] - xPoints[xPoints.length - 1];
        int yOff = yPoints[yPoints.length - 2] - yPoints[yPoints.length - 1];
        if (xOff == 0 && yOff == 0 && yPoints.length >= 3) {
            xOff = xPoints[xPoints.length - 3] - xPoints[xPoints.length - 1];
            yOff = yPoints[yPoints.length - 3] - yPoints[yPoints.length - 1];
        }
        g2.translate(xPoints[xPoints.length - 1], yPoints[yPoints.length - 1]);
        g2.rotate(Math.atan2(yOff, xOff));

        g2.scale(0.55, 0.80);
        AnchorShape.TRIANGLE_FILLED.paint(g2, false);
    }
}
 

private void drawPolylineBAD(Graphics2D g, int[] xp, int[] yp) {
    int offset = 200;
    g.translate(0, offset);
    g.drawPolyline(xp, yp, xp.length);
}
 

protected void paint(XYItem item, List<ItemSelection> highlighted,
                   List<ItemSelection> selected, Graphics2D g,
                   Rectangle dirtyArea, SynchronousXYChartContext context) {
    
    if (!isPainting()) return;
    if (item.getValuesCount() < 2) return;
    if (context.getViewWidth() == 0 || context.getViewHeight() == 0) return;

    int[][] points = getPoints(item, dirtyArea, context, type, maxValueOffset);
    if (points == null) return;

    int[] xPoints  = points[0];
    int[] yPoints  = points[1];
    int npoints = points[2][0];
    
    if (fillColor != null) {
        int zeroY = Utils.checkedInt(context.getViewY(context.getDataOffsetY()));
        zeroY = Math.max(Utils.checkedInt(context.getViewportOffsetY()), zeroY);
        zeroY = Math.min(Utils.checkedInt(context.getViewportOffsetY() +
                                                  context.getViewportHeight()), zeroY);

        Polygon polygon = new Polygon();
        polygon.xpoints = xPoints;
        polygon.ypoints = yPoints;
        polygon.npoints = npoints + 2;
        polygon.xpoints[npoints] = xPoints[npoints - 1];
        polygon.ypoints[npoints] = zeroY;
        polygon.xpoints[npoints + 1] = xPoints[0];
        polygon.ypoints[npoints + 1] = zeroY;
        
        if (fillColor2 == null || Utils.forceSpeed()) g.setPaint(fillColor);
        else g.setPaint(new GradientPaint(0, context.getViewportOffsetY(),
                       fillColor, 0, context.getViewportOffsetY() +
                       context.getViewportHeight(), fillColor2));
        g.fill(polygon);
    }

    if (lineColor != null) {
        g.setPaint(lineColor);
        g.setStroke(lineStroke);
        g.drawPolyline(xPoints, yPoints, npoints);
    }

}
 

protected void paint(XYItem item, List<ItemSelection> highlighted,
                       List<ItemSelection> selected, Graphics2D g,
                       Rectangle dirtyArea, SynchronousXYChartContext context) {

        if (item.getValuesCount() < 2) return;
        if (context.getViewWidth() == 0 || context.getViewHeight() == 0) return;

        int[][] points = createPoints(item, dirtyArea, context, type, maxValueOffset);
        if (points == null) return;

        int[] xPoints  = points[0];
        int[] yPoints  = points[1];
        int npoints = xPoints.length;

//long start = System.nanoTime();
        if (fillColor != null) {
            int zeroY = Utils.checkedInt(context.getViewY(context.getDataOffsetY()));
            zeroY = Math.max(Utils.checkedInt(context.getViewportOffsetY()), zeroY);
            zeroY = Math.min(Utils.checkedInt(context.getViewportOffsetY() +
                                                      context.getViewportHeight()), zeroY);

            Polygon polygon = new Polygon();
            polygon.xpoints = xPoints;
            polygon.ypoints = yPoints;
            polygon.npoints = npoints;
            polygon.xpoints[npoints - 2] = xPoints[npoints - 3];
            polygon.ypoints[npoints - 2] = zeroY;
            polygon.xpoints[npoints - 1] = xPoints[0];
            polygon.ypoints[npoints - 1] = zeroY;
            g.setPaint(fillColor);
            g.fill(polygon);
        }

        if (lineColor != null) {
            g.setPaint(lineColor);
            g.setStroke(lineStroke);
            g.drawPolyline(xPoints, yPoints, npoints - 2);
        }
//System.err.println(">>> Paint: " + (System.nanoTime() - start) / 1000 + " [ms], dirtyArea: " + dirtyArea);
//        if (type == TYPE_RELATIVE) {
//        g.setColor(Color.RED);
//        Rectangle bbox = new Rectangle(dirtyArea);
////        bbox.width -= 1;
////        bbox.height -= 1;
//            g.draw(bbox);
////            System.err.println(">>> Here");
//        }

//        if (type == TYPE_RELATIVE_BOUNDED) {
//            System.err.println(">>> paintItem, dirtyArea: " + dirtyArea);
//        }
        
    }
 

@Override
protected void paintWidget() {
    Graphics2D g = this.getGraphics();

    if (xPoints.length == 0 || Math.abs(xPoints[0] - xPoints[xPoints.length - 1]) > 2000) {
        return;
    }

    //g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
    //g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
    //g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);

    DiagramScene ds = (DiagramScene) this.getScene();
    boolean shouldHide = false;//ds.getShouldHide(this);

    Composite oldComposite = null;
    if (shouldHide) {
        Color c = new Color(255 - (255 - color.getRed()) / WHITE_FACTOR, 255 - (255 - color.getGreen()) / WHITE_FACTOR, 255 - (255 - color.getBlue()) / WHITE_FACTOR);
        g.setPaint(c);
    } else {
        g.setPaint(color);
    }

    if (split) {
        for (int i = 1; i < controlPoints.size(); i++) {
            Point prev = controlPoints.get(i - 1);
            Point cur = controlPoints.get(i);
            if (cur == null || prev == null) {
                continue;
            }

            g.drawLine(prev.x, prev.y, cur.x, cur.y);
        }
    } else {
        g.drawPolyline(xPoints, yPoints, pointCount);
    }

    /*for(int i=0; i<xPoints.length; i++) {
    int x = xPoints[i];
    int y = yPoints[i];
    g.fillOval(x - 2, y - 2, 4, 4);
    }*/

    if (xPoints.length >= 2) {
        Graphics2D g2 = (Graphics2D) g.create();
        int xOff = xPoints[xPoints.length - 2] - xPoints[xPoints.length - 1];
        int yOff = yPoints[yPoints.length - 2] - yPoints[yPoints.length - 1];
        if (xOff == 0 && yOff == 0 && yPoints.length >= 3) {
            xOff = xPoints[xPoints.length - 3] - xPoints[xPoints.length - 1];
            yOff = yPoints[yPoints.length - 3] - yPoints[yPoints.length - 1];
        }
        g2.translate(xPoints[xPoints.length - 1], yPoints[yPoints.length - 1]);
        g2.rotate(Math.atan2(yOff, xOff));

        g2.scale(0.55, 0.80);
        AnchorShape.TRIANGLE_FILLED.paint(g2, false);
    }
}
 

@Override
protected void paintWidget() {
    Graphics2D g = this.getGraphics();

    if (xPoints.length == 0 || Math.abs(xPoints[0] - xPoints[xPoints.length - 1]) > 2000) {
        return;
    }

    //g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
    //g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
    //g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);

    DiagramScene ds = (DiagramScene) this.getScene();
    boolean shouldHide = false;//ds.getShouldHide(this);

    Composite oldComposite = null;
    if (shouldHide) {
        Color c = new Color(255 - (255 - color.getRed()) / WHITE_FACTOR, 255 - (255 - color.getGreen()) / WHITE_FACTOR, 255 - (255 - color.getBlue()) / WHITE_FACTOR);
        g.setPaint(c);
    } else {
        g.setPaint(color);
    }

    if (split) {
        for (int i = 1; i < controlPoints.size(); i++) {
            Point prev = controlPoints.get(i - 1);
            Point cur = controlPoints.get(i);
            if (cur == null || prev == null) {
                continue;
            }

            g.drawLine(prev.x, prev.y, cur.x, cur.y);
        }
    } else {
        g.drawPolyline(xPoints, yPoints, pointCount);
    }

    /*for(int i=0; i<xPoints.length; i++) {
    int x = xPoints[i];
    int y = yPoints[i];
    g.fillOval(x - 2, y - 2, 4, 4);
    }*/

    if (xPoints.length >= 2) {
        Graphics2D g2 = (Graphics2D) g.create();
        int xOff = xPoints[xPoints.length - 2] - xPoints[xPoints.length - 1];
        int yOff = yPoints[yPoints.length - 2] - yPoints[yPoints.length - 1];
        if (xOff == 0 && yOff == 0 && yPoints.length >= 3) {
            xOff = xPoints[xPoints.length - 3] - xPoints[xPoints.length - 1];
            yOff = yPoints[yPoints.length - 3] - yPoints[yPoints.length - 1];
        }
        g2.translate(xPoints[xPoints.length - 1], yPoints[yPoints.length - 1]);
        g2.rotate(Math.atan2(yOff, xOff));

        g2.scale(0.55, 0.80);
        AnchorShape.TRIANGLE_FILLED.paint(g2, false);
    }
}
 

@Override
public void paintComponent(Graphics g) {
	Graphics2D g2D = (Graphics2D) g;
	g2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); // 反锯齿平滑绘制

	// 通过对并发消息链表遍历绘制全部消息气泡、消息发出者头像
	if (messageConcurrentLinkedQueue != null) {
		Iterator<Message> iterator = messageConcurrentLinkedQueue.iterator();
		while (iterator.hasNext()) {
			Message message = iterator.next();

			Point point = message.getMessagePaintLeftTop();

			if (point != null) {
				// 绘制消息发出者头像
				if (senderHeadImageConcurrentHashMap != null) {
					Image image = senderHeadImageConcurrentHashMap.get(message.getSenderHeadImageID());
					if (image != null) {
						if (message.isSelfSender()) {
							g2D.drawImage(image, this.getWidth() - image.getWidth(null) - 9, point.y - 25, null);
						} else {
							// 消息发出者是别人，则头像靠左显示
							g2D.drawImage(image, 9, point.y - 25, null);
						}
					}
				}

				// 绘制额消息气泡左边小箭头
				int xPoints[] = new int[3];
				int yPoints[] = new int[3];

				if (message.isSelfSender()) {
					// 绘制自己消息圆角消息气泡矩形
					g2D.setColor(selfMessageColor);
					g2D.fillRoundRect(point.x - 7, point.y - 7, message.getMessagePaintWidth() + 14, message.getMessagePaintHeight() + 14, 10, 10);
					// 绘制圆角消息气泡边框
					g2D.setColor(selfMessageBorderColor);
					g2D.drawRoundRect(point.x - 7, point.y - 7, message.getMessagePaintWidth() + 14, message.getMessagePaintHeight() + 14, 10, 10);

					// 消息发出者是自己，则头像靠右显示
					xPoints[0] = (point.x - 7) + (message.getMessagePaintWidth() + 14);
					yPoints[0] = point.y;
					xPoints[1] = xPoints[0] + 7;
					yPoints[1] = point.y;
					xPoints[2] = xPoints[0];
					yPoints[2] = point.y + 7;

					g2D.setColor(selfMessageColor);
					g2D.fillPolygon(xPoints, yPoints, 3);
					g2D.setColor(selfMessageBorderColor);
					g2D.drawPolyline(xPoints, yPoints, 3);
					g2D.setColor(selfMessageColor);
					g2D.drawLine(xPoints[0], yPoints[0] + 1, xPoints[2], yPoints[2] - 1);
				} else {
					// 绘制别人消息圆角消息气泡矩形
					// 绘制圆角消息气泡矩形
					g2D.setColor(otherMessageColor);
					g2D.fillRoundRect(point.x - 7, point.y - 7, message.getMessagePaintWidth() + 14, message.getMessagePaintHeight() + 14, 10, 10);
					// 绘制圆角消息气泡边框
					g2D.setColor(otherMessageBorderColor);
					g2D.drawRoundRect(point.x - 7, point.y - 7, message.getMessagePaintWidth() + 14, message.getMessagePaintHeight() + 14, 10, 10);

					// 消息发出者是别人，则头像靠左显示
					xPoints[0] = point.x - 7;
					yPoints[0] = point.y;
					xPoints[1] = xPoints[0] - 7;
					yPoints[1] = point.y;
					xPoints[2] = xPoints[0];
					yPoints[2] = point.y + 7;

					g2D.setColor(otherMessageColor);
					g2D.fillPolygon(xPoints, yPoints, 3);
					g2D.setColor(otherMessageBorderColor);
					g2D.drawPolyline(xPoints, yPoints, 3);
					g2D.setColor(otherMessageColor);
					g2D.drawLine(xPoints[0], yPoints[0] + 1, xPoints[2], yPoints[2] - 1);
				}
			}
		} // while
	}

	super.paintComponent(g); // 执行默认组件绘制（消息文本、图片以及段落显示等内容）
}