public EncodingPanel(@NotNull final Project project) {
super(project);
update = new Alarm(this);
myComponent =
new TextPanel.ExtraSize() {
@Override
protected void paintComponent(@NotNull final Graphics g) {
super.paintComponent(g);
if (actionEnabled && getText() != null) {
final Rectangle r = getBounds();
final Insets insets = getInsets();
Icon arrows = AllIcons.Ide.Statusbar_arrows;
arrows.paintIcon(
this,
g,
r.width - insets.right - arrows.getIconWidth() - 2,
r.height / 2 - arrows.getIconHeight() / 2);
}
}
};
new ClickListener() {
@Override
public boolean onClick(@NotNull MouseEvent e, int clickCount) {
update();
showPopup(e);
return true;
}
}.installOn(myComponent);
myComponent.setBorder(WidgetBorder.WIDE);
}
private void update() {
if (update.isDisposed()) return;
update.cancelAllRequests();
update.addRequest(
() -> {
if (isDisposed()) return;
VirtualFile file = getSelectedFile();
actionEnabled = false;
String charsetName = null;
Pair<Charset, String> check = null;
if (file != null) {
check = EncodingUtil.checkSomeActionEnabled(file);
Charset charset = null;
if (LoadTextUtil.wasCharsetDetectedFromBytes(file) != null) {
charset = cachedCharsetFromContent(file);
}
if (charset == null) {
charset = file.getCharset();
}
actionEnabled = check == null || check.second == null;
if (!actionEnabled) {
charset = check.first;
}
if (charset != null) {
charsetName = charset.displayName();
}
}
if (charsetName == null) {
charsetName = "n/a";
}
String toolTipText;
if (actionEnabled) {
toolTipText = String.format("File Encoding%n%s", charsetName);
myComponent.setForeground(UIUtil.getActiveTextColor());
myComponent.setTextAlignment(Component.LEFT_ALIGNMENT);
} else {
String failReason = check == null ? "" : check.second;
toolTipText = String.format("File encoding is disabled%n%s", failReason);
myComponent.setForeground(UIUtil.getInactiveTextColor());
myComponent.setTextAlignment(Component.CENTER_ALIGNMENT);
}
myComponent.setToolTipText(toolTipText);
myComponent.setText(charsetName);
if (myStatusBar != null) {
myStatusBar.updateWidget(ID());
}
},
200,
ModalityState.any());
}