/**
* Paints the error marker.
*
* @param g graphics reference
*/
private void drawError(final Graphics g) {
final int ww = wordW != 0 ? wordW : charW(g, ' ');
final int s = Math.max(1, fontH / 8);
g.setColor(GUIConstants.LRED);
g.fillRect(x, y + 2, ww, s);
g.setColor(GUIConstants.RED);
for (int xp = x; xp < x + ww; xp++) {
if ((xp & 1) == 0) g.drawLine(xp, y + 2, xp, y + s + 1);
}
}
@Override
public void paintComponent(final Graphics g) {
super.paintComponent(g);
final Runtime rt = Runtime.getRuntime();
final long max = rt.maxMemory();
final long total = rt.totalMemory();
final long used = total - rt.freeMemory();
final int ww = getWidth();
final int hh = getHeight();
// draw memory box
g.setColor(Color.white);
g.fillRect(0, 0, ww - 3, hh - 3);
g.setColor(GRAY);
g.drawLine(0, 0, ww - 4, 0);
g.drawLine(0, 0, 0, hh - 4);
g.drawLine(ww - 3, 0, ww - 3, hh - 3);
g.drawLine(0, hh - 3, ww - 3, hh - 3);
// show total memory usage
g.setColor(color1);
g.fillRect(2, 2, Math.max(1, (int) (total * (ww - 6) / max)), hh - 6);
// show current memory usage
final boolean full = used * 6 / 5 > max;
g.setColor(full ? colormark4 : color3);
g.fillRect(2, 2, Math.max(1, (int) (used * (ww - 6) / max)), hh - 6);
// print current memory usage
final FontMetrics fm = g.getFontMetrics();
final String mem = Performance.format(used, true);
final int fw = (ww - fm.stringWidth(mem)) / 2;
final int h = fm.getHeight() - 3;
g.setColor(full ? colormark3 : DGRAY);
g.drawString(mem, fw, h);
}
/**
* Paints the text cursor.
*
* @param g graphics reference
* @param xx x position
*/
private void cursor(final Graphics g, final int xx) {
g.setColor(Color.black);
g.drawLine(xx, y - fontH + 4, xx, y + 3);
}