public void paint(Graphics g) { m_fm = g.getFontMetrics(); g.setColor(getBackground()); g.fillRect(0, 0, getWidth(), getHeight()); getBorder().paintBorder(this, g, 0, 0, getWidth(), getHeight()); g.setColor(getForeground()); g.setFont(getFont()); m_insets = getInsets(); int x = m_insets.left; int y = m_insets.top + m_fm.getAscent(); StringTokenizer st = new StringTokenizer(getText(), "\t"); while (st.hasMoreTokens()) { String sNext = st.nextToken(); g.drawString(sNext, x, y); x += m_fm.stringWidth(sNext); if (!st.hasMoreTokens()) break; int index = 0; while (x >= getTab(index)) index++; x = getTab(index); } }
/** * Designate the place where the progress string will be painted. This implementation places it at * the center of the progress bar (in both x and y). Override this if you want to right, left, * top, or bottom align the progress string or if you need to nudge it around for any reason. */ protected Point getStringPlacement( Graphics g, String progressString, int x, int y, int width, int height) { FontMetrics fontSizer = SwingUtilities2.getFontMetrics(progressBar, g, progressBar.getFont()); int stringWidth = SwingUtilities2.stringWidth(progressBar, fontSizer, progressString); if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) { return new Point( x + Math.round(width / 2 - stringWidth / 2), y + ((height + fontSizer.getAscent() - fontSizer.getLeading() - fontSizer.getDescent()) / 2)); } else { // VERTICAL return new Point( x + ((width - fontSizer.getAscent() + fontSizer.getLeading() + fontSizer.getDescent()) / 2), y + Math.round(height / 2 - stringWidth / 2)); } }
/** * Returns the baseline. * * @throws NullPointerException {@inheritDoc} * @throws IllegalArgumentException {@inheritDoc} * @see javax.swing.JComponent#getBaseline(int, int) * @since 1.6 */ public int getBaseline(JComponent c, int width, int height) { super.getBaseline(c, width, height); if (progressBar.isStringPainted() && progressBar.getOrientation() == JProgressBar.HORIZONTAL) { FontMetrics metrics = progressBar.getFontMetrics(progressBar.getFont()); Insets insets = progressBar.getInsets(); int y = insets.top; height = height - insets.top - insets.bottom; return y + (height + metrics.getAscent() - metrics.getLeading() - metrics.getDescent()) / 2; } return -1; }