public static Color gradientColor(double value) {
if (value < 0.0) return Color.gray;
if (value > 1.0) value = 1.0;
int red = Math.min(255, (int) (512.0 - (value * 512.0)));
int green = Math.min(255, (int) (value * 512.0));
int blue = 0;
return new Color(red, green, blue);
}
public static void drawValueBar(
int x, int y, String labelhead, double value, double percentage, int colorindex, Graphics g) {
g.setColor(GetColor(colorindex));
g.drawRect(x, y, VALUE_BAR_WIDTH, VALUE_BAR_HEIGHT);
int barwidth;
if (percentage < 0.0) {
// Unknown value
barwidth = VALUE_BAR_WIDTH - 1;
} else {
barwidth = (int) ((VALUE_BAR_WIDTH - 1) * Math.min(1.0, percentage));
}
// g.setColor(gradientColor(percentage));
g.fillRect(x + 1, y + 1, barwidth, VALUE_BAR_HEIGHT - 1);
if (labelhead != null) {
g.setFont(MainFrame.defaultFont);
// g.setColor(MainFrame.labelColor);
int off = 2;
g.drawString(labelhead, x + VALUE_BAR_WIDTH + 2, y + VALUE_BAR_HEIGHT);
// off += (labelhead.length()+1) * 4; // Just a guess
String maxStr = new String("DateRate [/sec]:");
off += (int) ((maxStr.length() + 1) * 5.5);
if (value < 0.0) {
g.drawString("?", x + VALUE_BAR_WIDTH + off, y + VALUE_BAR_HEIGHT);
} else {
if (percentage < 0.0) {
g.drawString(format(value), x + VALUE_BAR_WIDTH + off, y + VALUE_BAR_HEIGHT);
} else {
g.drawString(
format(value) + " (" + format(percentage * 100) + "%)",
x + VALUE_BAR_WIDTH + off,
y + VALUE_BAR_HEIGHT);
}
}
}
}