private static void drawSelection(JTree tree, Graphics g, final int width) {
   int y = 0;
   final int[] rows = tree.getSelectionRows();
   final int height = tree.getRowHeight();
   for (int row : rows) {
     final TreeCellRenderer renderer = tree.getCellRenderer();
     final Object value = tree.getPathForRow(row).getLastPathComponent();
     if (value == null) continue;
     final Component component =
         renderer.getTreeCellRendererComponent(tree, value, false, false, false, row, false);
     if (component.getFont() == null) {
       component.setFont(tree.getFont());
     }
     g.translate(0, y);
     component.setBounds(0, 0, width, height);
     boolean wasOpaque = false;
     if (component instanceof JComponent) {
       final JComponent j = (JComponent) component;
       if (j.isOpaque()) wasOpaque = true;
       j.setOpaque(false);
     }
     component.paint(g);
     if (wasOpaque) {
       ((JComponent) component).setOpaque(true);
     }
     y += height;
     g.translate(0, -y);
   }
 }
Esempio n. 2
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  private static Pair<Image, Point> createDragImage(
      final Tree tree, final Component c, Point dragOrigin, boolean adjustToPathUnderDragOrigin) {
    if (c instanceof JComponent) {
      ((JComponent) c).setOpaque(true);
    }

    c.setForeground(tree.getForeground());
    c.setBackground(tree.getBackground());
    c.setFont(tree.getFont());
    c.setSize(c.getPreferredSize());
    final BufferedImage image =
        new BufferedImage(c.getWidth(), c.getHeight(), BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = (Graphics2D) image.getGraphics();
    g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.7f));
    c.paint(g2);
    g2.dispose();

    Point point = new Point(-image.getWidth(null) / 2, -image.getHeight(null) / 2);

    if (adjustToPathUnderDragOrigin) {
      TreePath path = tree.getPathForLocation(dragOrigin.x, dragOrigin.y);
      if (path != null) {
        Rectangle bounds = tree.getPathBounds(path);
        point = new Point(bounds.x - dragOrigin.x, bounds.y - dragOrigin.y);
      }
    }

    return new Pair<Image, Point>(image, point);
  }
 private static void drawSelection(JTable table, int column, Graphics g, final int width) {
   int y = 0;
   final int[] rows = table.getSelectedRows();
   final int height = table.getRowHeight();
   for (int row : rows) {
     final TableCellRenderer renderer = table.getCellRenderer(row, column);
     final Component component =
         renderer.getTableCellRendererComponent(
             table, table.getValueAt(row, column), false, false, row, column);
     g.translate(0, y);
     component.setBounds(0, 0, width, height);
     boolean wasOpaque = false;
     if (component instanceof JComponent) {
       final JComponent j = (JComponent) component;
       if (j.isOpaque()) wasOpaque = true;
       j.setOpaque(false);
     }
     component.paint(g);
     if (wasOpaque) {
       ((JComponent) component).setOpaque(true);
     }
     y += height;
     g.translate(0, -y);
   }
 }
Esempio n. 4
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 /**
  * Extracts the buffered image of some component
  *
  * @param myComponent the component for which the BufferedImage is required
  * @param region region to be captured
  * @return the BufferedImage which has the current condition of component
  * @throws IOException
  */
 public static BufferedImage Get_Component_Image(Component myComponent, Rectangle region)
     throws IOException {
   BufferedImage img =
       new BufferedImage(
           myComponent.getWidth(), myComponent.getHeight(), BufferedImage.TYPE_INT_RGB);
   Graphics g = img.getGraphics();
   myComponent.paint(g);
   g.dispose();
   return img;
 }
Esempio n. 5
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 public void paint(Graphics g1) {
   Graphics2D g = (Graphics2D) g1;
   Component c;
   Point p;
   paintComponent(g);
   for (int i = 0; i < getComponentCount(); i++) {
     AffineTransform save = g.getTransform();
     c = getComponent(i);
     p = c.getLocation();
     g.translate((int) p.getX(), (int) p.getY());
     c.paint(g);
     g.setTransform(save);
   }
 }
  public void paint(Graphics g) {
    // repaint the whole transformer in case the view component was repainted
    Rectangle clipBounds = g.getClipBounds();
    if (clipBounds != null && !clipBounds.equals(visibleRect)) {
      repaint();
    }
    // clear the background
    g.setColor(getBackground());
    g.fillRect(0, 0, getWidth(), getHeight());

    if (view != null && at.getDeterminant() != 0) {
      Graphics2D g2 = (Graphics2D) g.create();
      Insets insets = getInsets();
      Rectangle bounds = getBounds();

      // don't forget about insets
      bounds.x += insets.left;
      bounds.y += insets.top;
      bounds.width -= insets.left + insets.right;
      bounds.height -= insets.top + insets.bottom;
      double centerX1 = bounds.getCenterX();
      double centerY1 = bounds.getCenterY();

      Rectangle tb = getTransformedSize();
      double centerX2 = tb.getCenterX();
      double centerY2 = tb.getCenterY();

      // set antialiasing by default
      g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
      if (renderingHints != null) {
        g2.addRenderingHints(renderingHints);
      }
      // translate it to the center of the view component again
      double tx = centerX1 - centerX2 - getX();
      double ty = centerY1 - centerY2 - getY();
      g2.translate((int) tx, (int) ty);
      g2.transform(at);
      view.paint(g2);
      g2.dispose();
    }
    // paint the border
    paintBorder(g);
  }
Esempio n. 7
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  public int print(Graphics g, PageFormat pf, int pageIndex) {
    int response = NO_SUCH_PAGE;

    Graphics2D g2 = (Graphics2D) g;
    disableDoubleBuffering(componentToBePrinted);
    Dimension d = componentToBePrinted.getSize();
    double panelWidth = d.width;
    double panelHeight = d.height;
    double pageHeight = pf.getImageableHeight();
    double pageWidth = pf.getImageableWidth();
    double scale = pageWidth / panelWidth;
    int totalNumPages = (int) Math.ceil(scale * panelHeight / pageHeight);
    if (pageIndex >= totalNumPages) {
      response = NO_SUCH_PAGE;
    } else {
      g2.translate(pf.getImageableX(), pf.getImageableY());
      g2.translate(0f, -pageIndex * pageHeight);
      g2.scale(scale, scale);
      componentToBePrinted.paint(g2);
      enableDoubleBuffering(componentToBePrinted);
      response = Printable.PAGE_EXISTS;
    }
    return response;
  }
 BufferedImage createImageFromComponent(Component comp) {
   BufferedImage retImage = null;
   if (comp == null) return retImage;
   try {
     GraphicsEnvironment genv = GraphicsEnvironment.getLocalGraphicsEnvironment();
     GraphicsDevice gd = genv.getDefaultScreenDevice();
     GraphicsConfiguration gc = gd.getDefaultConfiguration();
     java.awt.image.ColorModel cm = gc.getColorModel();
     boolean hasAlpha = cm.hasAlpha();
     int cw = comp.getSize().width;
     int ch = comp.getSize().height;
     if (hasAlpha) {
       retImage = gc.createCompatibleImage(cw, ch);
     } else {
       retImage = new BufferedImage(cw, ch, BufferedImage.TYPE_INT_ARGB);
     }
     if (retImage == null) return retImage;
     Graphics og = retImage.getGraphics();
     comp.paint(og);
     og.dispose();
   } catch (Throwable t) {
   }
   return retImage;
 }
  public int print(Graphics g, PageFormat pf, int pageIndex) throws PrinterException {
    // Component printMe = getPrintComponent();

    Graphics2D g2 = (Graphics2D) g;
    g2.setColor(Color.black); // set default foreground color to black

    // for faster printing, turn off double buffering
    // RepaintManager.currentManager(this).setDoubleBufferingEnabled(false);

    Dimension d = printComponent.getSize(); // get size of document
    double panelWidth = d.width; // width in pixels
    double panelHeight = d.height; // height in pixels
    double pageHeight = pf.getImageableHeight(); // height of printer page
    double pageWidth = pf.getImageableWidth(); // width of printer page
    double scale = pageWidth / panelWidth;
    int totalNumPages = (int) Math.ceil(scale * panelHeight / pageHeight);

    // make sure we don't print empty pages
    if (pageIndex >= totalNumPages) {
      return Printable.NO_SUCH_PAGE;
    }

    // shift Graphic to line up with beginning of print-imageable region
    g2.translate(pf.getImageableX(), pf.getImageableY());

    // shift Graphic to line up with beginning of next page to print
    g2.translate(0f, -pageIndex * pageHeight);

    // scale the page so the width fits...
    g2.scale(scale, scale);

    // PRINT IT!
    printComponent.paint(g2);

    return Printable.PAGE_EXISTS;
  }