Java Code Examples for javax.swing.text.JTextComponent#getInsets()

static void paintPlaceholder( Graphics g, JTextComponent c, Color placeholderForeground ) {
	// check whether text component is empty
	if( c.getDocument().getLength() > 0 )
		return;

	// check for JComboBox
	Container parent = c.getParent();
	JComponent jc = (parent instanceof JComboBox) ? (JComboBox<?>) parent : c;

	// get placeholder text
	Object placeholder = jc.getClientProperty( FlatClientProperties.PLACEHOLDER_TEXT );
	if( !(placeholder instanceof String) )
		return;

	// compute placeholder location
	Insets insets = c.getInsets();
	FontMetrics fm = c.getFontMetrics( c.getFont() );
	int x = insets.left;
	int y = insets.top + fm.getAscent() + ((c.getHeight() - insets.top - insets.bottom - fm.getHeight()) / 2);

	// paint placeholder
	g.setColor( placeholderForeground );
	FlatUIUtils.drawString( c, g, (String) placeholder, x, y );
}
 

protected void paintLine(Graphics graphics) {
    if (graphics == null) {
        return;
    }
    JTextComponent c = getComponent();

    if (drawLine) {
        int x = c.getInsets().left;
        int y = c.getInsets().top;
        int w = c.getWidth() - c.getInsets().left - c.getInsets().right;
        if(textComponent.isEnabled()){
            graphics.setColor(colorLine);
        }else{
            graphics.setColor(disabledBackground);
        }

        graphics.fillRect(x, c.getHeight() - y, w, 1);
    }
}
 

@Override public void paint(Graphics g, JComponent c) {
  super.paint(g, c);
  if (c instanceof JLayer) {
    JTextComponent tc = (JTextComponent) ((JLayer<?>) c).getView();
    if (!tc.getText().isEmpty()) {
      Graphics2D g2 = (Graphics2D) g.create();
      g2.setPaint(hint.getForeground());
      Insets i = tc.getInsets();
      Dimension d = hint.getPreferredSize();
      int x = tc.getWidth() - i.right - d.width - 2;
      int y = (tc.getHeight() - d.height) / 2;
      SwingUtilities.paintComponent(g2, hint, tc, x, y, d.width, d.height);
      g2.dispose();
    }
  }
}
 

@Override public void paint(Graphics g, JComponent c) {
  super.paint(g, c);
  if (c instanceof JLayer) {
    JTextComponent tc = (JTextComponent) ((JLayer<?>) c).getView();
    if (!tc.getText().isEmpty()) {
      Graphics2D g2 = (Graphics2D) g.create();
      g2.setPaint(hint.getForeground());
      Insets i = tc.getInsets();
      Dimension d = hint.getPreferredSize();
      int x = tc.getWidth() - i.right - d.width - 2;
      int y = (tc.getHeight() - d.height) / 2;
      SwingUtilities.paintComponent(g2, hint, tc, x, y, d.width, d.height);
      g2.dispose();
    }
  }
}
 

@Override public void paint(Graphics g, JComponent c) {
  super.paint(g, c);
  if (c instanceof JLayer) {
    JLayer<?> jlayer = (JLayer<?>) c;
    JTextComponent tc = (JTextComponent) jlayer.getView();
    if (tc.getText().isEmpty() && !tc.hasFocus()) {
      Graphics2D g2 = (Graphics2D) g.create();
      g2.setPaint(hint.getBackground());
      Insets i = tc.getInsets();
      Dimension d = hint.getPreferredSize();
      SwingUtilities.paintComponent(g2, hint, tc, i.left, i.top, d.width, d.height);
      // int baseline = tc.getBaseline(tc.getWidth(), tc.getHeight());
      // Font font = tc.getFont();
      // FontRenderContext frc = g2.getFontRenderContext();
      // TextLayout tl = new TextLayout(hintMessage, font, frc);
      // tl.draw(g2, i.left + 2, baseline);
      g2.dispose();
    }
  }
}
 

/**
 * Returns the baseline for single line text components, like
 * <code>JTextField</code>.
 */
private static int getSingleLineTextBaseline(JTextComponent textComponent, int h) {
	View rootView = textComponent.getUI().getRootView(textComponent);
	if (rootView.getViewCount() > 0) {
		Insets insets = textComponent.getInsets();
		int height = h - insets.top - insets.bottom;
		int y = insets.top;
		View fieldView = rootView.getView(0);
		int vspan = (int) fieldView.getPreferredSpan(View.Y_AXIS);
		if (height != vspan) {
			int slop = height - vspan;
			y += slop / 2;
		}
		FontMetrics fm = textComponent.getFontMetrics(textComponent.getFont());
		y += fm.getAscent();
		return y;
	}
	return -1;
}
 

private static Rectangle getVisibleEditorRect(JTextComponent tc) {
Rectangle alloc = tc.getBounds();
if ((alloc.width > 0) && (alloc.height > 0)) {
    alloc.x = alloc.y = 0;
    Insets insets = tc.getInsets();
    alloc.x += insets.left;
    alloc.y += insets.top;
    alloc.width -= insets.left + insets.right;
    alloc.height -= insets.top + insets.bottom;
    return alloc;
}
return null;
   }
 

@Override
protected void paintSafely(Graphics g) {
    super.paintSafely(g);
    JTextComponent component = getComponent();
    if (hintText != null && component.getText().length() == 0 && !component.hasFocus()) {
        g.setColor(JBColor.GRAY);
        final int fontSize = component.getFont().getSize();
        final int padding = (component.getHeight() - fontSize) / 2;
        final int x = component.getInsets().left;
        final int y = component.getHeight() - padding - 1;
        g.drawString(hintText, x, y);
    }
}
 

protected Rectangle getDrawingRect() {
  final JTextComponent c = getComponent();
  final Insets i = c.getInsets();
  final int x = i.right - 4 - 16;
  final int y = i.top - 3;
  final int w = c.getWidth() - i.left - i.right + 16*2 +7*2  - 5;
  int h = c.getBounds().height - i.top - i.bottom + 4*2 - 3;
  if (h%2==1) h++;
  return new Rectangle(x, y, w, h);
}
 

protected Rectangle getDrawingRect() {
  final JTextComponent c = myTextField;
  final Insets i = c.getInsets();
  final int x = i.right - JBUI.scale(4) - JBUI.scale(16);
  final int y = i.top - JBUI.scale(3);
  final int w = c.getWidth() - (i.right + i.left) + JBUI.scale(16 * 2) + JBUI.scale(7 * 2) - JBUI.scale(5);
  int h = c.getBounds().height - (i.top + i.bottom) + JBUI.scale(4 * 2) - JBUI.scale(3);
  if (h % 2 == 1) h += JBUI.scale(1);
  return new Rectangle(x, y, w, h);
}