JavaFX table: shortcut does not behave as expected
I am using the following code to highlight text in Table
c HBoxes
that contains multiple Labels
. But some Labels
display ellipses instead of text. How can I get it to Labels
display in full width?
col3.setCellValueFactory(new PropertyValueFactory<RegexMatch, String>("excerptLineTable"));
col3.setCellFactory(new Callback<TableColumn, TableCell>() {
@Override
public TableCell call(TableColumn param) {
TableCell cell = new TableCell() {
@Override
protected void updateItem(Object text, boolean empty) {
if (text != null && text instanceof String) {
HBox hbox = new HBox();
hbox.setAlignment(Pos.CENTER_LEFT);
String str = (String) text;
if (txtSearchField.getText().length() > 3 && str.contains(HIGHLIGHT_START)) {
// Something to highlight
hbox.getChildren().clear();
while (str.contains(HIGHLIGHT_START)) {
// First part
Label label = new Label(str.substring(0, str.indexOf(HIGHLIGHT_START)));
label.setWrapText(false);
label.setMaxWidth(Double.MAX_VALUE);
hbox.getChildren().add(label);
str = str.substring(str.indexOf(HIGHLIGHT_START) + HIGHLIGHT_START.length(), str.length());
// Part to highlight
Label label2 = new Label(str.substring(0, str.indexOf(HIGHLIGHT_END)));
label2.setWrapText(false);
label2.setMaxWidth(Double.MAX_VALUE);
label2.setStyle("-fx-background-color: "+ HIGHLIGHT_COLOR+";");
hbox.getChildren().add(label2);
// Last part
str = str.substring(str.indexOf(HIGHLIGHT_END) + HIGHLIGHT_END.length(), str.length());
if (!str.contains(HIGHLIGHT_START)) {
Label label3 = new Label(str);
label3.setWrapText(false);
label3.setMaxWidth(Double.MAX_VALUE);
hbox.getChildren().add(label3);
}
}
} else if (txtSearchField.getText().length() < 1) {
// Remove former highlightings and show simple text
str = str.replaceAll(HIGHLIGHT_START, "");
str = str.replaceAll(HIGHLIGHT_END, "");
hbox.getChildren().clear();
Label label = new Label(str);
label.setWrapText(false);
label.setMaxWidth(Double.MAX_VALUE);
hbox.getChildren().add(label);
} else {
// show simple text
hbox.getChildren().clear();
Label label = new Label(str);
label.setWrapText(false);
label.setMaxWidth(Double.MAX_VALUE);
hbox.getChildren().add(label);
}
setGraphic(hbox);
}
}
};
return cell;
}
});
Solution
Using Labels
in HBox
with different background colors for each TableView
works fine. My problem was a bug in my method of finding and replacing selection.
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I found a rather ugly solution:
private static Label createNoEllipsisLabel(String pText)
{
Label label = new Label(pText);
double width = computeTextWidth(label.getFont(), pText, 0);
label.setPrefWidth(width);
label.setMinWidth(width);
return label;
}
private static final TextLayout layout = Toolkit.getToolkit().getTextLayoutFactory().createLayout();
private static double computeTextWidth(Font font, String text, double wrappingWidth) {
layout.setContent(text != null ? text : "", font.impl_getNativeFont());
layout.setWrapWidth((float)wrappingWidth);
return layout.getBounds().getWidth();
}
As copied from com.sun.javafx.scene.control.skin.Utils.computeTextWidth(Font, String, double)
, it used a lot of internal APIs, which is a pretty good idea.
Can anyone else find a better solution?
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