Java Code Examples for javax.swing.JComponent#setOpaque()

@Override
public void installUI(JComponent c) {
	super.installUI(c);
	c.setForeground(COLOR_DEFAULT_FOREGROUND);
	c.setBackground(COLOR_DEFAULT_BACKGROUND);
	c.setOpaque(false);
	progressBar.addChangeListener(pulseChangeListener);
	progressBar.addChangeListener(sparkChangeListener);
	progressBar.addPropertyChangeListener(PROPERTY_STROKE_MULTIPLIER,
			repaintListener);
	progressBar.addPropertyChangeListener(PROPERTY_SPARK_ANGLE,
			repaintListener);
	progressBar.addPropertyChangeListener(PROPERTY_ACCELERATE,
			repaintListener);
	progressBar.addPropertyChangeListener(PROPERTY_STROKE_WIDTH,
			repaintListener);
	progressBar.setBorder(null);
}
 

public void addItem(JComponent c) {
    c.setOpaque(false);

    if (c instanceof JButton)
        ((JButton)c).setDefaultCapable(false);

    if (toolbar != null) {
        toolbar.add(c);
    } else {
        add(c);
        if (c instanceof AbstractButton) {
            AbstractButton b = (AbstractButton) c;
            b.addMouseListener(listener);
            b.addChangeListener(listener);
            b.addFocusListener(listener);
            b.setRolloverEnabled(true);
        }
    }
}
 

/**
 * Create the GUI and show it. For thread safety, this method should be
 * invoked from the event-dispatching thread.
 */
public static JFrame createAndShowGUI() {
    // Create and set up the window.
    JFrame frame = new JFrame("DropDemo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    // Create and set up the content pane.
    JComponent newContentPane = new DropDemo();
    newContentPane.setOpaque(true); // content panes must be opaque
    frame.setContentPane(newContentPane);

    // Display the window.
    frame.pack();
    frame.setVisible(true);
    return frame;
}
 

protected void paintComponent(Graphics g) {
    JTableHeader header = getHeader();
    setupHeader(header);
    TableCellRenderer renderer = header.getDefaultRenderer();
    JComponent component = (JComponent)renderer.getTableCellRendererComponent(
                           getTable(), "", isSelected && isPressed, isFocusOwner(), -1, 0); // NOI18N
    
    int height = header.getPreferredSize().height;
    component.setBounds(0, 0, getWidth(), height);
    component.setOpaque(false);
    getPainter().paintComponent(g, component, null, 0, 0, getWidth(), height, false);
}
 

@Override
public final void dragGestureRecognized(final DragGestureEvent dge) {
  // final TreePath path = tree.getSelectionPath();
  final TreePath path = tree.getPathForLocation(dge.getDragOrigin().x, dge.getDragOrigin().y);

  if (path != null) {
    draggedNode = (DefaultMutableTreeNode) path.getLastPathComponent();
    draggedNodeParent = (DefaultMutableTreeNode) draggedNode.getParent();
    if (drawImage) {
      final Rectangle pathBounds = tree.getPathBounds(path); // getpathbounds of selectionpath
      final JComponent lbl =
          (JComponent) tree.getCellRenderer().getTreeCellRendererComponent(tree, draggedNode,
              false, tree.isExpanded(path),
              ((DefaultTreeModel) tree.getModel()).isLeaf(path.getLastPathComponent()), 0, false);// returning
                                                                                                  // the
                                                                                                  // label
      lbl.setBounds(pathBounds);// setting bounds to lbl
      image =
          new BufferedImage(lbl.getWidth(), lbl.getHeight(),
              java.awt.image.BufferedImage.TYPE_INT_ARGB_PRE);// buffered image reference passing
                                                              // the label's ht and width
      final Graphics2D graphics = image.createGraphics();// creating the graphics for buffered
                                                         // image
      graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f)); // Sets
                                                                                        // the
                                                                                        // Composite
                                                                                        // for the
                                                                                        // Graphics2D
                                                                                        // context
      lbl.setOpaque(false);
      lbl.paint(graphics); // painting the graphics to label
      graphics.dispose();
    }
    dragSource.startDrag(dge, DragSource.DefaultMoveNoDrop, image, new Point(0, 0),
        new TransferableNode(draggedNode), this);
  }
}
 

protected void paintComponent(Graphics g) {
    JTableHeader header = getHeader();
    setupHeader(header);
    TableCellRenderer renderer = header.getDefaultRenderer();
    JComponent component = (JComponent)renderer.getTableCellRendererComponent(
                           getTable(), "", isSelected && isPressed, isFocusOwner(), -1, 0); // NOI18N
    
    int height = header.getPreferredSize().height;
    component.setBounds(0, 0, getWidth(), height);
    component.setOpaque(false);
    getPainter().paintComponent(g, component, null, 0, 0, getWidth(), height, false);
}
 

/**
 * Set up component.
 */
protected void initialize() {
    JComponent component = getComponent();
    component.setToolTipText(label.getToolTipText());
    component.setEnabled(editable);
    component.setOpaque(false);
}
 

private static void createAndShowGUI(JPanel jtop) {
    JFrame frame = new JFrame("GfxdTop");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JComponent contentPane = (JComponent) frame.getContentPane();
    contentPane.add(jtop, BorderLayout.CENTER);
    contentPane.setOpaque(true);
    contentPane.setBorder(new EmptyBorder(12, 12, 12, 12));
    frame.setContentPane(contentPane);

    frame.pack();
    frame.setVisible(true);
}
 

/**
 * Create the GUI and show it. For thread safety, this method should be
 * invoked from the event-dispatching thread.
 */
private static void createAndShowGUI() {
    // Create and set up the window.
    JFrame frame = new JFrame("TableToolTipsDemo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    // Create and set up the content pane.
    JComponent newContentPane = new TableToolTipsDemo();
    newContentPane.setOpaque(true); // content panes must be opaque
    frame.setContentPane(newContentPane);

    // Display the window.
    frame.pack();
    frame.setVisible(true);
}
 

private static void setOpaque(JComponent jc, boolean opaque) {
	if (jc instanceof JTextField)
		return;

	jc.setOpaque(false);
	if (jc instanceof JSpinner)
		return;

	for (int a = 0; a < jc.getComponentCount(); a++) {
		JComponent child = (JComponent) jc.getComponent(a);
		setOpaque(child, opaque);
	}
}
 

protected JComponent createEditor()
{
	JComponent e = super.createEditor();
	e.setOpaque(false);

	//参见JSpinner.NumberEditor，super.createEditor()返回值就是它的父类
	//（是一个JPanel实例），它是由一个FormatttedTextField及其父JPanel组成
	//的，所以设置完 e.setOpaque(false)，还要把它的子FormatttedTextField
	//设置成透明，其实它的子只有1个，它里为了适用未来的扩展假设它有很多子，
	Component[] childs = e.getComponents();
	BEUtils.componentsOpaque(childs, false);

	return e;
}
 

private static void createAndShowGUI(JPanel jtop) {
    JFrame frame = new JFrame("GfxdTop");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JComponent contentPane = (JComponent) frame.getContentPane();
    contentPane.add(jtop, BorderLayout.CENTER);
    contentPane.setOpaque(true);
    contentPane.setBorder(new EmptyBorder(12, 12, 12, 12));
    frame.setContentPane(contentPane);

    frame.pack();
    frame.setVisible(true);
}
 

/**
 * Should be called shortly after <code>prep()</code>.
 */
private static void restore(Component c) {
	if (c instanceof JComponent) {
		JComponent jc = (JComponent) c;
		Boolean b = (Boolean) jc.getClientProperty(USED_TO_BE_OPAQUE);
		if (b != null && b.booleanValue()) {
			jc.setOpaque(true);
		}
		jc.putClientProperty(USED_TO_BE_OPAQUE, null);

		Dimension d = (Dimension) jc.getClientProperty(SIZE);
		if (d != null) {
			jc.setSize(d);
			jc.putClientProperty(SIZE, null);
		}
	}
	if (c instanceof JSlider) {
		JSlider s = (JSlider) c;
		ChangeListener[] listeners = (ChangeListener[]) s
				.getClientProperty(CHANGE_LISTENERS);
		Integer i = (Integer) s.getClientProperty(SLIDER_VALUE);
		if (i != null)
			s.setValue(i.intValue());
		if (listeners != null) {
			for (int a = 0; a < listeners.length; a++) {
				s.addChangeListener(listeners[a]);
			}
		}
		s.putClientProperty(SLIDER_VALUE, null);
		s.putClientProperty(CHANGE_LISTENERS, null);
	}
	if (c instanceof Container) {
		Container c2 = (Container) c;
		for (int a = 0; a < c2.getComponentCount(); a++) {
			restore(c2.getComponent(a));
		}
	}
}
 

@Override
public void installUI(JComponent c) {
	initializeUIManager();
	super.installUI(c);
	c.setOpaque(false);
	c.setBorder(new BasicBorders.MarginBorder());
}
 

@Override
public void installUI(JComponent c) {
    super.installUI(c);

    c.setOpaque(false);
}
 

@Override
public void installUI(JComponent c) {
    super.installUI(c);

    c.setOpaque(false);
}
 

/**
 * Adds a component on this Canvas inside a frame.
 *
 * @param comp The component to add to the canvas.
 * @param toolBox Should be set to true if the resulting frame is
 *     used as a toolbox (that is: it should not be counted as a
 *     frame).
 * @param popupPosition A preferred {@code PopupPosition}.
 * @param resizable Whether this component can be resized.
 * @return The {@code JInternalFrame} that was created and added.
 */
private JInternalFrame addAsFrame(JComponent comp, boolean toolBox,
                                  PopupPosition popupPosition,
                                  boolean resizable) {
    final int FRAME_EMPTY_SPACE = 60;

    final JInternalFrame f = (toolBox) ? new ToolBoxFrame()
        : new JInternalFrame();
    Container con = f.getContentPane();
    if (con instanceof JComponent) {
        JComponent c = (JComponent)con;
        c.setOpaque(false);
        c.setBorder(null);
    }

    if (comp.getBorder() != null) {
        if (comp.getBorder() instanceof EmptyBorder) {
            f.setBorder(Utility.blankBorder(10, 10, 10, 10));
        } else {
            f.setBorder(comp.getBorder());
            comp.setBorder(Utility.blankBorder(5, 5, 5, 5));
        }
    } else {
        f.setBorder(null);
    }

    final FrameMotionListener fml = new FrameMotionListener(f);
    comp.addMouseMotionListener(fml);
    comp.addMouseListener(fml);
    if (f.getUI() instanceof BasicInternalFrameUI) {
        BasicInternalFrameUI biu = (BasicInternalFrameUI) f.getUI();
        biu.setNorthPane(null);
        biu.setSouthPane(null);
        biu.setWestPane(null);
        biu.setEastPane(null);
    }

    f.getContentPane().add(comp);
    f.setOpaque(false);
    f.pack();
    int width = f.getWidth();
    int height = f.getHeight();
    if (width > getWidth() - FRAME_EMPTY_SPACE) {
        width = Math.min(width, getWidth());
    }
    if (height > getHeight() - FRAME_EMPTY_SPACE) {
        height = Math.min(height, getHeight());
    }
    f.setSize(width, height);
    Point p = chooseLocation(comp, width, height, popupPosition);
    f.setLocation(p);
    this.addToCanvas(f, MODAL_LAYER);
    f.setName(comp.getClass().getSimpleName());

    f.setFrameIcon(null);
    f.setVisible(true);
    f.setResizable(resizable);
    try {
        f.setSelected(true);
    } catch (java.beans.PropertyVetoException e) {}

    return f;
}
 

/** Set the background on a component. */
private JComponent setBackground(JComponent comp, Color c) {
    comp.setOpaque(true);
    comp.setBackground(c);
    return comp;
}
 

public DiagramScene(Action[] actions, DiagramViewModel model) {
    this.actions = actions;
    selectedWidgets = new ArrayList<FigureWidget>();
    content = new InstanceContent();
    lookup = new AbstractLookup(content);
    this.setCheckClipping(true);
    this.getInputBindings().setZoomActionModifiers(0);

    JComponent comp = this.createView();
    comp.setDoubleBuffered(true);
    comp.setBackground(Color.WHITE);
    comp.setOpaque(true);

    this.setBackground(Color.WHITE);
    this.setOpaque(true);
    scrollPane = new JScrollPane(comp);
    scrollPane.setBackground(Color.WHITE);
    scrollPane.getVerticalScrollBar().setUnitIncrement(SCROLL_UNIT_INCREMENT);
    scrollPane.getVerticalScrollBar().setBlockIncrement(SCROLL_BLOCK_INCREMENT);
    scrollPane.getHorizontalScrollBar().setUnitIncrement(SCROLL_UNIT_INCREMENT);
    scrollPane.getHorizontalScrollBar().setBlockIncrement(SCROLL_BLOCK_INCREMENT);
    scrollPane.getViewport().addChangeListener(scrollChangeListener);
    hoverAction = this.createWidgetHoverAction();

    blockLayer = new LayerWidget(this);
    this.addChild(blockLayer);

    startLayer = new LayerWidget(this);
    this.addChild(startLayer);
    // TODO: String startLabelString = "Loading graph with " + originalDiagram.getFigures().size() + " figures and " + originalDiagram.getConnections().size() + " connections...";
    String startLabelString = "";
    LabelWidget w = new LabelWidget(this, startLabelString);
    scrollChangeListener.register(w, new Point(10, 10));
    w.setAlignment(LabelWidget.Alignment.CENTER);
    startLabel = w;
    startLayer.addChild(w);

    mainLayer = new LayerWidget(this);
    this.addChild(mainLayer);

    topLeft = new Widget(this);
    topLeft.setPreferredLocation(new Point(-BORDER_SIZE, -BORDER_SIZE));
    this.addChild(topLeft);


    bottomRight = new Widget(this);
    bottomRight.setPreferredLocation(new Point(-BORDER_SIZE, -BORDER_SIZE));
    this.addChild(bottomRight);

    slotLayer = new LayerWidget(this);
    this.addChild(slotLayer);

    connectionLayer = new LayerWidget(this);
    this.addChild(connectionLayer);

    LayerWidget selectionLayer = new LayerWidget(this);
    this.addChild(selectionLayer);

    this.setLayout(LayoutFactory.createAbsoluteLayout());

    this.getActions().addAction(hoverAction);
    zoomAction = new BoundedZoomAction(1.1, false);
    zoomAction.setMaxFactor(ZOOM_MAX_FACTOR);
    zoomAction.setMinFactor(ZOOM_MIN_FACTOR);
    this.getActions().addAction(ActionFactory.createMouseCenteredZoomAction(1.1));
    panAction = new ExtendedPanAction();
    this.getActions().addAction(panAction);
    this.getActions().addAction(ActionFactory.createPopupMenuAction(popupMenuProvider));

    LayerWidget selectLayer = new LayerWidget(this);
    this.addChild(selectLayer);
    this.getActions().addAction(ActionFactory.createRectangularSelectAction(rectangularSelectDecorator, selectLayer, rectangularSelectProvider));

    blockWidgets = new HashMap<InputBlock, BlockWidget>();

    boolean b = this.getUndoRedoEnabled();
    this.setUndoRedoEnabled(false);
    this.setNewModel(model);
    this.setUndoRedoEnabled(b);
}
 

public DiagramScene(Action[] actions, DiagramViewModel model) {
    this.actions = actions;
    selectedWidgets = new ArrayList<FigureWidget>();
    content = new InstanceContent();
    lookup = new AbstractLookup(content);
    this.setCheckClipping(true);
    this.getInputBindings().setZoomActionModifiers(0);

    JComponent comp = this.createView();
    comp.setDoubleBuffered(true);
    comp.setBackground(Color.WHITE);
    comp.setOpaque(true);

    this.setBackground(Color.WHITE);
    this.setOpaque(true);
    scrollPane = new JScrollPane(comp);
    scrollPane.setBackground(Color.WHITE);
    scrollPane.getVerticalScrollBar().setUnitIncrement(SCROLL_UNIT_INCREMENT);
    scrollPane.getVerticalScrollBar().setBlockIncrement(SCROLL_BLOCK_INCREMENT);
    scrollPane.getHorizontalScrollBar().setUnitIncrement(SCROLL_UNIT_INCREMENT);
    scrollPane.getHorizontalScrollBar().setBlockIncrement(SCROLL_BLOCK_INCREMENT);
    scrollPane.getViewport().addChangeListener(scrollChangeListener);
    hoverAction = this.createWidgetHoverAction();

    blockLayer = new LayerWidget(this);
    this.addChild(blockLayer);

    startLayer = new LayerWidget(this);
    this.addChild(startLayer);
    // TODO: String startLabelString = "Loading graph with " + originalDiagram.getFigures().size() + " figures and " + originalDiagram.getConnections().size() + " connections...";
    String startLabelString = "";
    LabelWidget w = new LabelWidget(this, startLabelString);
    scrollChangeListener.register(w, new Point(10, 10));
    w.setAlignment(LabelWidget.Alignment.CENTER);
    startLabel = w;
    startLayer.addChild(w);

    mainLayer = new LayerWidget(this);
    this.addChild(mainLayer);

    topLeft = new Widget(this);
    topLeft.setPreferredLocation(new Point(-BORDER_SIZE, -BORDER_SIZE));
    this.addChild(topLeft);


    bottomRight = new Widget(this);
    bottomRight.setPreferredLocation(new Point(-BORDER_SIZE, -BORDER_SIZE));
    this.addChild(bottomRight);

    slotLayer = new LayerWidget(this);
    this.addChild(slotLayer);

    connectionLayer = new LayerWidget(this);
    this.addChild(connectionLayer);

    LayerWidget selectionLayer = new LayerWidget(this);
    this.addChild(selectionLayer);

    this.setLayout(LayoutFactory.createAbsoluteLayout());

    this.getActions().addAction(hoverAction);
    zoomAction = new BoundedZoomAction(1.1, false);
    zoomAction.setMaxFactor(ZOOM_MAX_FACTOR);
    zoomAction.setMinFactor(ZOOM_MIN_FACTOR);
    this.getActions().addAction(ActionFactory.createMouseCenteredZoomAction(1.1));
    panAction = new ExtendedPanAction();
    this.getActions().addAction(panAction);
    this.getActions().addAction(ActionFactory.createPopupMenuAction(popupMenuProvider));

    LayerWidget selectLayer = new LayerWidget(this);
    this.addChild(selectLayer);
    this.getActions().addAction(ActionFactory.createRectangularSelectAction(rectangularSelectDecorator, selectLayer, rectangularSelectProvider));

    blockWidgets = new HashMap<InputBlock, BlockWidget>();

    boolean b = this.getUndoRedoEnabled();
    this.setUndoRedoEnabled(false);
    this.setNewModel(model);
    this.setUndoRedoEnabled(b);
}