How to use

getHeight

method

in

java.awt.Container

int parentWidth = canvasParent.getWidth();
int parentHeight = canvasParent.getHeight();

final double sw = (1.0 * parent.getWidth()) / pd.width;
final double sh = (1.0 * parent.getHeight()) / pd.height;

int parentWidth = canvasParent.getWidth();
int parentHeight = canvasParent.getHeight();

 Container c = getContentPane();
BufferedImage im = new BufferedImage(c.getWidth(), c.getHeight(), BufferedImage.TYPE_INT_ARGB);
c.paint(im.getGraphics());
ImageIO.write(im, "PNG", new File("shot.png"));

public void takeScreenshot(File outputFile) {
  Container c = getContentPane();
  BufferedImage img = new BufferedImage(c.getWidth(), c.getHeight(), BufferedImage.TYPE_INT_RGB);
  Graphics2D g2 = img.createGraphics();
  c.paint(g2);
  try {
    ImageIO.write(img, "png", outputFile);
  } catch (IOException e) {
    throw new RuntimeException(e);
  }
}

int layeredPaneWidth = layeredPane.getWidth();
int layeredPaneHeight = layeredPane.getHeight();

@Override @Nonnull
public Dimension preferredLayoutSize (final @Nonnull Container container) 
 {
  return new Dimension((int)(container.getWidth() * (1 - leftSpring - rightSpring)), 
             (int)(container.getHeight() * (1 - topSpring - bottomSpring)));
 }

 public void layoutContainer (final Container container) 
  {
   final int width = container.getWidth();
   final int height = container.getHeight();
   for (int i = 0; i < container.getComponentCount(); i++) 
    {
     final Component component = container.getComponent(i);
     component.setBounds(0, 0, width, height);
    }
  }    
}        

public void layoutContainer(Container parent) {
  int maxWidth = parent.getWidth();
  int maxHeight = parent.getHeight();
  int nComps = parent.getComponentCount();    
  
  for (int i = 0 ; i < nComps ; i++) {
    Component c = parent.getComponent(i);                
    c.setBounds(0, 0, maxWidth,maxHeight);
  }
}

@Override
public void layoutContainer(final Container target) {
 int counter = 0;
 final int width = target.getWidth();
 final int height = target.getHeight() / this.numberOfRows;
 for (final Component c : target.getComponents()) {
  c.setBounds(0, height * counter++, width, height);
  if (c instanceof JComponent) {
   ((JComponent) c).setBorder(BorderFactory.createLineBorder(this.borderColor, 1));
  }
 }
}

  @Override
  public void layoutContainer( Container parent ) {
    super.layoutContainer(parent);
    if( null != searchPanel && searchPanel.isVisible() ) {
      Insets innerInsets = getInnerInsets();
      Dimension prefSize = searchPanel.getPreferredSize();
      searchPanel.setBounds(innerInsets.left, parent.getHeight()-innerInsets.bottom-prefSize.height,
          parent.getWidth()-innerInsets.left-innerInsets.right, prefSize.height);
    }
  }
}

@Override
public void layoutContainer( Container parent ) {
  super.layoutContainer(parent);
  if( null != searchpanel && searchpanel.isVisible() ) {
    Insets innerInsets = getInnerInsets();
    Dimension prefSize = searchpanel.getPreferredSize();
    searchpanel.setBounds(innerInsets.left, parent.getHeight()-innerInsets.bottom-prefSize.height,
        parent.getWidth()-innerInsets.left-innerInsets.right, prefSize.height);
  }
}

 Container pane = frame.getContentPane();
BufferedImage img = new BufferedImage(pane.getWidth(), pane.getHeight(), BufferedImage.TYPE_INT_RGB);
Graphics2D g2d = img.createGraphics();
pane.printAll(g2d);
g2d.dispose();
try {
  ImageIO.write(img, "png", new File("save.png"));
} catch (IOException ex) {
  ex.printStackTrace();
}

 public void layoutContainer(java.awt.Container parent)
 {
  c.setBounds(parent.getInsets().left, parent.getInsets().top, parent.getWidth() - parent.getInsets().left - parent.getInsets().right,
    parent.getHeight() - parent.getInsets().top - parent.getInsets().bottom);
  //System.out.println("LAYOUT frame bounds=" + f.getBounds() + " videoBounds=" + videoBounds + " parentBounds=" + parent.getBounds());
 }
};

@Override
public Dimension preferredLayoutSize(Container c) {
  if (scrollablePanel.getScrollType() == ScrollType.HORIZONTALLY) {
    return new Dimension(c.getWidth(), 21);
  } else {
    return new Dimension(21, c.getHeight());
  }
}

 public void layoutContainer(java.awt.Container parent)
 {
  c.setBounds(parent.getInsets().left, parent.getInsets().top, parent.getWidth() - parent.getInsets().left - parent.getInsets().right,
    parent.getHeight() - parent.getInsets().top - parent.getInsets().bottom);
  //							videoCanvas.setBounds(parent.getInsets().left, parent.getInsets().top,
  //								parent.getWidth() - parent.getInsets().left - parent.getInsets().right,
  //								parent.getHeight() - parent.getInsets().top - parent.getInsets().bottom);//vf.setBounds(x, y, w, h);
  //System.out.println("LAYOUT frame bounds=" + f.getBounds() + " videoBounds=" + videoBounds + " parentBounds=" + parent.getBounds());
 }
};

 public void layoutContainer(java.awt.Container parent)
 {
  c.setBounds(parent.getInsets().left, parent.getInsets().top, parent.getWidth() - parent.getInsets().left - parent.getInsets().right,
    parent.getHeight() - parent.getInsets().top - parent.getInsets().bottom);
  //System.out.println("LAYOUT frame bounds=" + f.getBounds() + " videoBounds=" + videoBounds + " parentBounds=" + parent.getBounds());
 }
};

@Override
public void layoutContainer(Container parent) {
  Dimension fpp = fixedPanel.getPreferredSize();
  int dx = (parent.getWidth() - fpp.width) / 2;
  int dy = (parent.getHeight() - fpp.height) / 2;
  fixedPanel.setBounds(dx, dy, fpp.width, fpp.height);
}

  @Override
  public void layoutContainer(Container c) {
    int width = c.getWidth();
    int height = c.getHeight();
    scrollerPanel.setBounds(0, 0, width, height);
  }
}

@Override
public void layoutContainer(Container parent) {
  Insets insets = parent.getInsets();
  int left = insets.left;
  int right = insets.right;
  int top = insets.top;
  int bottom = insets.bottom;
  scroll.setBounds(left, top, parent.getWidth() - left - right,
      parent.getHeight() - top - bottom);
}