public void rotate(int deg) {
log.debug("rotate({}) with _rotateText {}, _text {}, _icon {}", deg, _rotateText, _text, _icon);
_degrees = deg;
if (_rotateText || deg == 0) {
if (deg == 0) { // restore unrotated whatever
_rotateText = false;
if (_text) {
log.debug(" super.setText(\"{}\");", _unRotatedText);
super.setText(_unRotatedText);
if (_popupUtil != null) {
setOpaque(_popupUtil.hasBackground());
_popupUtil.setBorder(true);
}
if (_icon) {
String url = _namedIcon.getURL();
_namedIcon = new NamedIcon(url, url);
} else {
_namedIcon = null;
}
super.setIcon(_namedIcon);
} else {
_namedIcon.rotate(deg, this);
super.setIcon(_namedIcon);
}
} else {
if (_text & _icon) { // update text over icon
_namedIcon = makeTextOverlaidIcon(_unRotatedText, _namedIcon);
} else if (_text) { // update text only icon image
_namedIcon = makeTextIcon(_unRotatedText);
}
_namedIcon.rotate(deg, this);
super.setIcon(_namedIcon);
setOpaque(false); // rotations cannot be opaque
}
} else {
if (deg != 0) { // first time text or icon is rotated from horizontal
if (_text && _icon) { // text overlays icon e.g. LocoIcon
_namedIcon = makeTextOverlaidIcon(_unRotatedText, _namedIcon);
super.setText(null);
_rotateText = true;
setOpaque(false);
} else if (_text) {
_namedIcon = makeTextIcon(_unRotatedText);
super.setText(null);
_rotateText = true;
setOpaque(false);
}
if (_popupUtil != null) {
_popupUtil.setBorder(false);
}
_namedIcon.rotate(deg, this);
super.setIcon(_namedIcon);
} else if (_namedIcon != null) {
_namedIcon.rotate(deg, this);
super.setIcon(_namedIcon);
}
}
updateSize();
}
/**
* create a text image whose bit map can be rotated
*
* @param text
* @return
*/
private NamedIcon makeTextIcon(String text) {
if (text == null || text.equals("")) {
text = " ";
}
int width = getFontMetrics(getFont()).stringWidth(text);
int height = getFontMetrics(getFont()).getHeight();
int hOffset = 0;
int vOffset = getFontMetrics(getFont()).getAscent();
if (_popupUtil != null) {
if (_popupUtil.getFixedWidth() != 0) {
switch (_popupUtil.getJustification()) {
case PositionablePopupUtil.LEFT:
hOffset = _popupUtil.getBorderSize();
break;
case PositionablePopupUtil.RIGHT:
hOffset = _popupUtil.getFixedWidth() - width;
hOffset += _popupUtil.getBorderSize();
break;
default:
hOffset = Math.max((_popupUtil.getFixedWidth() - width) / 2, 0);
hOffset += _popupUtil.getBorderSize();
break;
}
width = _popupUtil.getFixedWidth() + 2 * _popupUtil.getBorderSize();
} else {
width += 2 * (_popupUtil.getMargin() + _popupUtil.getBorderSize());
hOffset += _popupUtil.getMargin() + _popupUtil.getBorderSize();
}
if (_popupUtil.getFixedHeight() != 0) {
vOffset = Math.max(vOffset + (_popupUtil.getFixedHeight() - height) / 2, 0);
vOffset += _popupUtil.getBorderSize();
height = _popupUtil.getFixedHeight() + 2 * _popupUtil.getBorderSize();
} else {
height += 2 * (_popupUtil.getMargin() + _popupUtil.getBorderSize());
vOffset += _popupUtil.getMargin() + _popupUtil.getBorderSize();
}
}
BufferedImage bufIm = new BufferedImage(width + 2, height + 2, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = bufIm.createGraphics();
g2d.setFont(getFont());
g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setRenderingHint(
RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
g2d.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
if (_popupUtil != null) {
if (_popupUtil.hasBackground()) {
g2d.setColor(_popupUtil.getBackground());
g2d.fillRect(0, 0, width, height);
}
if (_popupUtil.getBorderSize() != 0) {
g2d.setColor(_popupUtil.getBorderColor());
g2d.setStroke(new java.awt.BasicStroke(2 * _popupUtil.getBorderSize()));
g2d.drawRect(0, 0, width, height);
}
}
g2d.setColor(getForeground());
g2d.drawString(text, hOffset, vOffset);
NamedIcon icon = new NamedIcon(bufIm);
g2d.dispose();
return icon;
}
/** Create an image of icon with text overlaid */
protected NamedIcon makeTextOverlaidIcon(String text, NamedIcon ic) {
String url = ic.getURL();
NamedIcon icon = new NamedIcon(url, url);
int textWidth = getFontMetrics(getFont()).stringWidth(text);
int iconWidth = icon.getIconWidth();
int textHeight = getFontMetrics(getFont()).getHeight();
int iconHeight = icon.getIconHeight();
int width = Math.max(textWidth, iconWidth);
int height = Math.max(textHeight, iconHeight);
int hOffset = Math.max((textWidth - iconWidth) / 2, 0);
int vOffset = Math.max((textHeight - iconHeight) / 2, 0);
if (_popupUtil != null) {
if (_popupUtil.getFixedWidth() != 0) {
switch (_popupUtil.getJustification()) {
case PositionablePopupUtil.LEFT:
hOffset = _popupUtil.getBorderSize();
break;
case PositionablePopupUtil.RIGHT:
hOffset = _popupUtil.getFixedWidth() - width;
hOffset += _popupUtil.getBorderSize();
break;
default:
hOffset = Math.max((_popupUtil.getFixedWidth() - width) / 2, 0);
hOffset += _popupUtil.getBorderSize();
break;
}
width = _popupUtil.getFixedWidth() + 2 * _popupUtil.getBorderSize();
} else {
width += 2 * (_popupUtil.getMargin() + _popupUtil.getBorderSize());
hOffset += _popupUtil.getMargin() + _popupUtil.getBorderSize();
}
if (_popupUtil.getFixedHeight() != 0) {
vOffset = Math.max(vOffset + (_popupUtil.getFixedHeight() - height) / 2, 0);
vOffset += _popupUtil.getBorderSize();
height = _popupUtil.getFixedHeight() + 2 * _popupUtil.getBorderSize();
} else {
height += 2 * (_popupUtil.getMargin() + _popupUtil.getBorderSize());
vOffset += _popupUtil.getMargin() + _popupUtil.getBorderSize();
}
}
BufferedImage bufIm = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = bufIm.createGraphics();
g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setRenderingHint(
RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
g2d.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
if (_popupUtil != null) {
if (_popupUtil.hasBackground()) {
g2d.setColor(_popupUtil.getBackground());
g2d.fillRect(0, 0, width, height);
}
if (_popupUtil.getBorderSize() != 0) {
g2d.setColor(_popupUtil.getBorderColor());
g2d.setStroke(new java.awt.BasicStroke(2 * _popupUtil.getBorderSize()));
g2d.drawRect(0, 0, width, height);
}
}
g2d.drawImage(
icon.getImage(), AffineTransform.getTranslateInstance(hOffset, vOffset + 1), this);
g2d.setFont(getFont());
hOffset = Math.max((width - textWidth) / 2, 0);
vOffset = Math.max((height - textHeight) / 2, 0) + getFontMetrics(getFont()).getAscent();
g2d.setColor(getForeground());
g2d.drawString(text, hOffset, vOffset);
icon = new NamedIcon(bufIm);
g2d.dispose();
icon.setURL(url);
return icon;
}
