/** constructor */
 public DanceQueuePanel() {
   //	flow layout
   setLayout(new FlowLayout());
   //	uses buffer	to	draw arrows	based	on	queues in an array
   myImage = new BufferedImage(600, 600, BufferedImage.TYPE_INT_RGB);
   myBuffer = myImage.getGraphics();
   // uses timer to queue buffer changes
   time = 0;
   timer = new Timer(5, new Listener());
   timer.start();
   setFocusable(true);
   // picks instructions	based	on	song & level
   if (Danceoff.getSong() == -1 && Danceoff.getDifficulty() == 0) {
     arrows = new Arrow[] {new UpArrow(1000), new DownArrow(2000), new LeftArrow(3000)};
   }
   // setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.BLACK, 3),
   //	"DanceQueuePanel"));
   // load images for arrows
   rightArrowImg = null;
   leftArrowImg = null;
   upArrowImg = null;
   downArrowImg = null;
   try {
     rightArrowImg = ImageIO.read(new File("arrowB right.png"));
     leftArrowImg = ImageIO.read(new File("arrowB left.png"));
     upArrowImg = ImageIO.read(new File("arrowB up copy.png"));
     downArrowImg = ImageIO.read(new File("arrowB down.png"));
   } catch (IOException e) {
     warn("YOU FAIL", e);
     System.exit(2);
   }
 }
 private void scaleImage() {
   Image img =
       back.getScaledInstance(scx(back.getWidth()), scy(back.getHeight()), Image.SCALE_SMOOTH);
   back =
       new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_ARGB);
   Graphics g = back.getGraphics();
   g.drawImage(img, 0, 0, null);
   g.dispose();
 }
  protected void filePNG() {

    JFileChooser chooser = null;
    File pngFile = null;
    if (currentFile == null) {
      chooser = new JFileChooser(startDirectory);
    } else {
      pngFile = new File(currentFile.getName() + ".png");
      chooser = new JFileChooser(pngFile);
      if (!currentFile.isDirectory()) {
        chooser.setSelectedFile(currentFile);
      }
    }

    if (pngFile == null) return;
    try {
      BufferedImage image = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_INT_RGB);
      paint(image.getGraphics());
      ImageIO.write(image, "png", pngFile);
    } catch (Exception e) {
    }
    return;
    /*		JFileChooser chooser = null;
    		File pngFile = null;
    		if (currentFile == null) {
    			chooser = new JFileChooser(startDirectory);
    		} else {
    			pngFile = new File(currentFile.getName()+".png");
    			chooser = new JFileChooser(pngFile);
    			if (!currentFile.isDirectory()) {
    				chooser.setSelectedFile(currentFile);
    			}
    		}
    		int returnVal = chooser.showSaveDialog(gw);
    		if (returnVal == JFileChooser.APPROVE_OPTION) {
    			File pngFile = chooser.getSelectedFile();

    			int maxX = Integer.MIN_VALUE;
    			int minX = Integer.MAX_VALUE;
    			int maxY = Integer.MIN_VALUE;
    			int minY = Integer.MAX_VALUE;

    			while(Node node : getNodes()) {
    				if(node.getX() > maxX) {
    					maxX = node.getX();
    				}
    				if(node.getX() < minX) {
    					minX = node.getX();
    				}
    				if(node.getY() > maxY) {
    					maxY = node.getY();
    				}
    				if(node.getY() < minY) {
    					minY = node.getY();
    				}
    			}

    			BufferedImage image = new BufferedImage(maxX-minX+50,maxY-minY+50,BufferedImage.TYPE_INT_RGB);



    			ImageIO.write(image,"png",pngFile);
    		}
    */ }
Beispiel #4
0
  private BufferedImage getSpecificImage(
      int x,
      int y,
      int w,
      int h,
      int imgIndexX,
      int imgIndexY,
      BufferedImage buffImg,
      int zoom,
      int cachedZoom,
      GMapListener listener,
      boolean localFilesOnly) {

    int xIndex = x / GDataSource.sourceSize.width;
    int yIndex = y / GDataSource.sourceSize.height;

    xIndex += imgIndexX;
    yIndex += imgIndexY;

    BufferedImage image = null;
    if (!localFilesOnly || getGDataSource().isCached(xIndex, yIndex, zoom))
      image = getIndexedImage(xIndex, yIndex, zoom, cachedZoom, listener);

    int xCoord = x % GDataSource.sourceSize.width;
    int yCoord = y % GDataSource.sourceSize.height;

    // Checks for invalid xCoord and yCoord
    if (xCoord < 0) {
      xCoord = 0;
    }
    if (yCoord < 0) {
      yCoord = 0;
    }

    // get info about the image
    Dimension imageSize =
        new Dimension(getGDataSource().sourceSize.width, getGDataSource().sourceSize.height);

    // find the width of what we CAN paint
    int initPaintWidth = imageSize.width - xCoord;
    int initPaintHeight = imageSize.height - yCoord;

    int paintWidth = initPaintWidth;
    int paintHeight = initPaintHeight;

    int rowImages = numOfRows(x, y, h, zoom, cachedZoom);
    int colImages = numOfCols(x, y, w, zoom, cachedZoom);

    if (imgIndexX >= colImages || imgIndexY >= rowImages) {
      return null;
    }

    int xImage = 0;
    int yImage = 0;

    int xInitCoord = xCoord;
    int yInitCoord = yCoord;

    if (imgIndexX > 0) {
      xImage = initPaintWidth + (imgIndexX - 1) * imageSize.width;
      xCoord = 0;
      if (imgIndexX < (colImages - 1)) {
        paintWidth = imageSize.width;
      } else {
        paintWidth = w - ((colImages - 2) * imageSize.width) - (imageSize.width - xInitCoord);
      }
    }
    if (imgIndexY > 0) {
      yImage = initPaintHeight + (imgIndexY - 1) * imageSize.height;
      yCoord = 0;
      if (imgIndexY < (rowImages - 1)) {
        paintHeight = imageSize.height;
      } else {
        paintHeight = h - ((rowImages - 2) * imageSize.height) - (imageSize.height - yInitCoord);
      }
    }

    if (buffImg != null) {
      Graphics2D g = (Graphics2D) buffImg.getGraphics();
      if (image != null) {
        // System.out.println(xCoord + ":" + yCoord + ":" + paintWidth + ":" + paintHeight);
        g.drawImage(
            image.getSubimage(xCoord, yCoord, paintWidth, paintHeight),
            xImage,
            yImage,
            paintWidth,
            paintHeight,
            null);
      } else {
        Composite originalComposite = g.getComposite();
        g.setComposite(opacity40);
        g.setColor(Color.BLACK);
        g.fillRect(xImage, yImage, paintWidth, paintHeight);
        g.setComposite(originalComposite);
      }
    }

    return buffImg;
  }
Beispiel #5
0
  public void _jspService(HttpServletRequest request, HttpServletResponse response)
      throws java.io.IOException, ServletException {

    PageContext pageContext = null;
    HttpSession session = null;
    ServletContext application = null;
    ServletConfig config = null;
    JspWriter out = null;
    Object page = this;
    JspWriter _jspx_out = null;
    PageContext _jspx_page_context = null;

    try {
      response.setContentType("image/jpeg");
      pageContext =
          _jspxFactory.getPageContext(
              this, request, response, "/myhtml/errorpage/erroe.jsp", true, 8192, true);
      _jspx_page_context = pageContext;
      application = pageContext.getServletContext();
      config = pageContext.getServletConfig();
      session = pageContext.getSession();
      out = pageContext.getOut();
      _jspx_out = out;

      out.write("\r\n");
      out.write("\r\n");
      out.write('\r');
      out.write('\n');

      // 设置页面不缓存
      response.setHeader("Pragma", "No-cache");
      response.setHeader("Cache-Control", "no-cache");
      response.setDateHeader("Expires", 0);

      //   在内存中创建图象
      int width = 60, height = 20;
      BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

      //   获取图形上下文
      Graphics g = image.getGraphics();

      // 生成随机类
      Random random = new Random();

      //   设定背景色
      g.setColor(getRandColor(200, 250));
      g.fillRect(0, 0, width, height);

      // 设定字体
      g.setFont(new Font("Times   New   Roman", Font.PLAIN, 18));

      // 画边框
      // g.setColor(new   Color());
      // g.drawRect(0,0,width-1,height-1);

      //   随机产生155条干扰线,使图象中的认证码不易被其它程序探测到
      g.setColor(getRandColor(160, 200));
      for (int i = 0; i < 155; i++) {
        int x = random.nextInt(width);
        int y = random.nextInt(height);
        int xl = random.nextInt(12);
        int yl = random.nextInt(12);
        g.drawLine(x, y, x + xl, y + yl);
      }

      //   取随机产生的认证码(4位数字)
      String sRand = "";
      for (int i = 0; i < 4; i++) {
        String rand = String.valueOf(random.nextInt(10));
        sRand += rand;
        //   将认证码显示到图象中
        g.setColor(
            new Color(
                20 + random.nextInt(110), 20 + random.nextInt(110), 20 + random.nextInt(110)));
        // 调用函数出来的颜色相同,可能是å›
        // ä¸ºç§å­å¤ªæŽ¥è¿‘,所以只能直接生成
        g.drawString(rand, 13 * i + 6, 16);
      }

      //   将认证码存入SESSION
      session.setAttribute("rand", sRand);

      //   图象生效
      g.dispose();

      //   输出图象到页面
      ImageIO.write(image, "JPEG", response.getOutputStream());
      out.clear();
      out = pageContext.pushBody();

    } catch (Throwable t) {
      if (!(t instanceof SkipPageException)) {
        out = _jspx_out;
        if (out != null && out.getBufferSize() != 0)
          try {
            out.clearBuffer();
          } catch (java.io.IOException e) {
          }
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
        else log(t.getMessage(), t);
      }
    } finally {
      _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }