/**
* If necessary paints the background of the component, then invokes <code>paint</code>.
*
* @param g Graphics to paint to
* @param c JComponent painting on
* @throws NullPointerException if <code>g</code> or <code>c</code> is null
* @see javax.swing.plaf.ComponentUI#update
* @see javax.swing.plaf.ComponentUI#paint
* @since 1.5
*/
public void update(Graphics g, JComponent c) {
AbstractButton button = (AbstractButton) c;
if ((c.getBackground() instanceof UIResource)
&& button.isContentAreaFilled()
&& c.isEnabled()) {
ButtonModel model = button.getModel();
if (!MetalUtils.isToolBarButton(c)) {
if (!model.isArmed()
&& !model.isPressed()
&& MetalUtils.drawGradient(
c, g, "Button.gradient", 0, 0, c.getWidth(), c.getHeight(), true)) {
paint(g, c);
return;
}
} else if (model.isRollover()
&& MetalUtils.drawGradient(
c, g, "Button.gradient", 0, 0, c.getWidth(), c.getHeight(), true)) {
paint(g, c);
return;
}
}
super.update(g, c);
}
/**
* This method is not being used to paint menu item since 6.0 This code left for compatibility
* only. Do not use or override it, this will not cause any visible effect.
*/
public static void paintMenuItem(
Graphics g,
JComponent c,
Icon checkIcon,
Icon arrowIcon,
Color background,
Color foreground,
int defaultTextIconGap) {
JMenuItem b = (JMenuItem) c;
ButtonModel model = b.getModel();
Dimension size = b.getSize();
Insets i = c.getInsets();
Rectangle viewRect = new Rectangle(size);
viewRect.x += i.left;
viewRect.y += i.top;
viewRect.width -= (i.right + viewRect.x);
viewRect.height -= (i.bottom + viewRect.y);
Rectangle iconRect = new Rectangle();
Rectangle textRect = new Rectangle();
Rectangle acceleratorRect = new Rectangle();
Rectangle checkRect = new Rectangle();
Rectangle arrowRect = new Rectangle();
Font holdf = g.getFont();
Font f = c.getFont();
g.setFont(f);
FontMetrics fm = SwingUtilities2.getFontMetrics(c, g, f);
FontMetrics fmAccel =
SwingUtilities2.getFontMetrics(c, g, UIManager.getFont("MenuItem.acceleratorFont"));
if (c.isOpaque()) {
if (model.isArmed() || (c instanceof JMenu && model.isSelected())) {
g.setColor(background);
} else {
g.setColor(c.getBackground());
}
g.fillRect(0, 0, size.width, size.height);
}
// get Accelerator text
KeyStroke accelerator = b.getAccelerator();
String acceleratorText = "";
if (accelerator != null) {
int modifiers = accelerator.getModifiers();
if (modifiers > 0) {
acceleratorText = KeyEvent.getKeyModifiersText(modifiers);
acceleratorText += "+";
}
acceleratorText += KeyEvent.getKeyText(accelerator.getKeyCode());
}
// layout the text and icon
String text =
layoutMenuItem(
c,
fm,
b.getText(),
fmAccel,
acceleratorText,
b.getIcon(),
checkIcon,
arrowIcon,
b.getVerticalAlignment(),
b.getHorizontalAlignment(),
b.getVerticalTextPosition(),
b.getHorizontalTextPosition(),
viewRect,
iconRect,
textRect,
acceleratorRect,
checkRect,
arrowRect,
b.getText() == null ? 0 : defaultTextIconGap,
defaultTextIconGap);
// Paint the Check
Color holdc = g.getColor();
if (checkIcon != null) {
if (model.isArmed() || (c instanceof JMenu && model.isSelected())) g.setColor(foreground);
checkIcon.paintIcon(c, g, checkRect.x, checkRect.y);
g.setColor(holdc);
}
// Paint the Icon
if (b.getIcon() != null) {
Icon icon;
if (!model.isEnabled()) {
icon = (Icon) b.getDisabledIcon();
} else if (model.isPressed() && model.isArmed()) {
icon = (Icon) b.getPressedIcon();
if (icon == null) {
// Use default icon
icon = (Icon) b.getIcon();
}
} else {
icon = (Icon) b.getIcon();
}
if (icon != null) {
icon.paintIcon(c, g, iconRect.x, iconRect.y);
}
}
// Draw the Text
if (text != null && !text.equals("")) {
// Once BasicHTML becomes public, use BasicHTML.propertyKey
// instead of the hardcoded string below!
View v = (View) c.getClientProperty("html");
if (v != null) {
v.paint(g, textRect);
} else {
int mnemIndex = b.getDisplayedMnemonicIndex();
if (!model.isEnabled()) {
// *** paint the text disabled
g.setColor(b.getBackground().brighter());
SwingUtilities2.drawStringUnderlineCharAt(
b, g, text, mnemIndex, textRect.x, textRect.y + fmAccel.getAscent());
g.setColor(b.getBackground().darker());
SwingUtilities2.drawStringUnderlineCharAt(
b, g, text, mnemIndex, textRect.x - 1, textRect.y + fmAccel.getAscent() - 1);
} else {
// *** paint the text normally
if (model.isArmed() || (c instanceof JMenu && model.isSelected())) {
g.setColor(foreground);
} else {
g.setColor(b.getForeground());
}
SwingUtilities2.drawStringUnderlineCharAt(
b, g, text, mnemIndex, textRect.x, textRect.y + fm.getAscent());
}
}
}
// Draw the Accelerator Text
if (acceleratorText != null && !acceleratorText.equals("")) {
// Get the maxAccWidth from the parent to calculate the offset.
int accOffset = 0;
Container parent = b.getParent();
if (parent != null && parent instanceof JComponent) {
JComponent p = (JComponent) parent;
Integer maxValueInt = (Integer) p.getClientProperty(MotifGraphicsUtils.MAX_ACC_WIDTH);
int maxValue = maxValueInt != null ? maxValueInt.intValue() : acceleratorRect.width;
// Calculate the offset, with which the accelerator texts will be drawn with.
accOffset = maxValue - acceleratorRect.width;
}
g.setFont(UIManager.getFont("MenuItem.acceleratorFont"));
if (!model.isEnabled()) {
// *** paint the acceleratorText disabled
g.setColor(b.getBackground().brighter());
SwingUtilities2.drawString(
c,
g,
acceleratorText,
acceleratorRect.x - accOffset,
acceleratorRect.y + fm.getAscent());
g.setColor(b.getBackground().darker());
SwingUtilities2.drawString(
c,
g,
acceleratorText,
acceleratorRect.x - accOffset - 1,
acceleratorRect.y + fm.getAscent() - 1);
} else {
// *** paint the acceleratorText normally
if (model.isArmed() || (c instanceof JMenu && model.isSelected())) {
g.setColor(foreground);
} else {
g.setColor(b.getForeground());
}
SwingUtilities2.drawString(
c,
g,
acceleratorText,
acceleratorRect.x - accOffset,
acceleratorRect.y + fmAccel.getAscent());
}
}
// Paint the Arrow
if (arrowIcon != null) {
if (model.isArmed() || (c instanceof JMenu && model.isSelected())) g.setColor(foreground);
if (!(b.getParent() instanceof JMenuBar)) arrowIcon.paintIcon(c, g, arrowRect.x, arrowRect.y);
}
g.setColor(holdc);
g.setFont(holdf);
}