java - JavaFX TableView with highlighted text -

java - JavaFX TableView with highlighted text -

i want highlight parts of text displayed in javafx tableview. till i'm using text objects in textflow objects. highlight specific parts in text using tags cutting text in parts (javafx.scene.text objects) highlight or not highlight next code.

col3.setcellvaluefactory(new propertyvaluefactory<regexmatch, string>("text")); 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) { string str = (string) text; textflow flow = new textflow(); if (txtsearchfield.gettext().length() > 3 && str.contains(highlight_start)) { // highlight flow.getchildren().clear(); while (str.contains(highlight_start)) { // first part text starttext = new text(str.substring(0, str.indexof(highlight_start))); starttext.setwrappingwidth(double.max_value); flow.getchildren().add(starttext); str = str.substring(str.indexof(highlight_start) + highlight_start.length(), str.length()); // part highlight text highlightedtext = new text(str.substring(0, str.indexof(highlight_end))); highlightedtext.setstyle("-fx-text-background-color: yellow;"); highlightedtext.setfill(color.blue); highlightedtext.setwrappingwidth(double.max_value); flow.getchildren().add(highlightedtext); // lastly part str = str.substring(str.indexof(highlight_end) + highlight_end.length(), str.length()); if (!str.contains(highlight_start)) { text endtext = new text(str); endtext.setwrappingwidth(double.max_value); flow.getchildren().add(endtext); } } }else if (txtsearchfield.gettext().length() < 1) { // remove former highlightings , show simple text str = str.replaceall(highlight_start, ""); str = str.replaceall(highlight_end, ""); flow.getchildren().clear(); text textmodule = new text(str); textmodule.setwrappingwidth(double.max_value); flow.getchildren().add(textmodule); } else { // show simple text flow.getchildren().clear(); text textmodule = new text(str); textmodule.setwrappingwidth(double.max_value); flow.getchildren().add(textmodule); } flow.setprefheight(bigicons ? big_size : small_size); setgraphic(flow); } } }; homecoming cell; } });

unfortunately background highlighting not work , have unusual linebreaks shown in picture. text not contain linebreaks.

(sorry image quality, real screenshot :))

any help appreciated.

solution @eckig suggested, using multiple labels in hbox idea, because each 'label' can have own background color , can utilize much labels in line in hbox needed:

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(); string str = (string) text; if (txtsearchfield.gettext().length() > 3 && str.contains(highlight_start)) { // highlight hbox.getchildren().clear(); while (str.contains(highlight_start)) { // first part label label = new label(str.substring(0, str.indexof(highlight_start))); hbox.getchildren().add(label); str = str.substring(str.indexof(highlight_start) + highlight_start.length(), str.length()); // part highlight label label2 = new label(str.substring(0, str.indexof(highlight_end))); label2.setstyle("-fx-background-color: blue;"); hbox.getchildren().add(label2); // lastly part str = str.substring(str.indexof(highlight_end) + highlight_end.length(), str.length()); if (!str.contains(highlight_start)) { label label3 = new label(str); hbox.getchildren().add(label3); } } } else if (txtsearchfield.gettext().length() < 1) { // remove former highlightings , show simple text str = str.replaceall(highlight_start, ""); str = str.replaceall(highlight_end, ""); hbox.getchildren().clear(); label label = new label(str); hbox.getchildren().add(label); } else { // show simple text hbox.getchildren().clear(); label label = new label(str); hbox.getchildren().add(label); } setgraphic(hbox); } } }; homecoming cell; } });

after double reading problem think can resume follows:

a rather long text in tablecolumn the user should able filter text each text-fragment matches current search term highlighted.

now have 2 options:

create hbox , add together labels containg text fragments. label extends part , may have background color. use textflow , add together texts text fragments. there can "only" alter foreground color.

ah , before forget: disable textflow text wrapping must not phone call textmodule.setwrappingwidth(double.max_value); instead textmodule.setprefwidth(double.max_value);

and hint: seek recycle much possible. recreating whole textflow on each update not thought (instead store fellow member variable in cell).

java javafx tableview textflow