[英]Any alternate to RSyntaxTextArea in Javafx?
I am working on a code editor for java which will be used in Parallel Computing and Distributed Computing. 我正在为Java使用代码编辑器,它将在并行计算和分布式计算中使用。 I'm looking for an alternate to RSyntaxTextArea in Javafx, bcz i tried to implement it in Javafx and it is not working well, like sometimes half of the text area doesn't show and cursor lags in the text area.
我正在寻找Javafx中RSyntaxTextArea的替代品,我尝试在Javafx中实现它,但它运行不正常,就像有时一半的文本区域不显示并且光标滞后于文本区域。
Tab textTab = new Tab("Sample Tab");
RSyntaxTextArea ta= new RSyntaxTextArea();
SwingNode sn = new SwingNode();
String text="";
ta.setText(text);
ta.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_JAVA);
ta.setAntiAliasingEnabled(true);
ta.setCodeFoldingEnabled(true);
RTextScrollPane sp = new RTextScrollPane(ta);
sn.setContent(sp);
textTab.setContent(sn);
I am newbie in Javafx, so i don't know much how to fix these issues. 我是Javafx的新手,所以我不知道如何解决这些问题。 It also doesn't match the beauty of Javafx.
它也与Javafx的优势不符。
尝试使用Tomas Mikula的RichTextFX框架中的CodeArea
(或更StyleClassedTextArea
是StyleClassedTextArea
)组件。
i have created my own class from RichTextFX here is the code 我已经从RichTextFX创建了自己的类,这是代码
import java.time.Duration;
import java.util.Collection;
import java.util.Collections;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javafx.concurrent.Task;
import org.fxmisc.richtext.CodeArea;
import org.fxmisc.richtext.PlainTextChange;
import org.fxmisc.richtext.StyleSpans;
import org.fxmisc.richtext.StyleSpansBuilder;
import org.reactfx.EventStream;
/**
*
* @author Nika
*/
public class SyntaxTextArea {
private static final String[] KEYWORDS = new String[]{
"abstract", "assert", "boolean", "break", "byte",
"case", "catch", "char", "class", "const",
"continue", "default", "do", "double", "else",
"enum", "extends", "final", "finally", "float",
"for", "goto", "if", "implements", "import",
"instanceof", "int", "interface", "long", "native",
"new", "package", "private", "protected", "public",
"return", "short", "static", "strictfp", "super",
"switch", "synchronized", "this", "throw", "throws",
"transient", "try", "void", "volatile", "while"
};
private static final Pattern KEYWORD_PATTERN = Pattern.compile("\\b(" + String.join("|", KEYWORDS) + ")\\b");
private CodeArea codeArea;
private ExecutorService executor;
public SyntaxTextArea() {
executor = Executors.newSingleThreadExecutor();
codeArea = new CodeArea();
EventStream<PlainTextChange> textChanges = codeArea.plainTextChanges();
textChanges
.successionEnds(Duration.ofMillis(500))
.supplyTask(this::computeHighlightingAsync)
.awaitLatest(textChanges)
.subscribe(this::applyHighlighting);
codeArea.getStylesheets().add(org.fxmisc.richtext.demo.JavaKeywordsAsync.class.getResource("java-keywords.css").toExternalForm());
}
public void setText(String text) {
codeArea.replaceText(0, 0, text);
}
public String getText() {
return codeArea.getText();
}
public void appendText(String text) {
codeArea.appendText(text);
}
public CodeArea getNode(){
return codeArea;
}
public void setStyling(){
}
private Task<StyleSpans<Collection<String>>> computeHighlightingAsync() {
String text = codeArea.getText();
Task<StyleSpans<Collection<String>>> task = new Task<StyleSpans<Collection<String>>>() {
@Override
protected StyleSpans<Collection<String>> call() throws Exception {
return computeHighlighting(text);
}
};
executor.execute(task);
return task;
}
private void applyHighlighting(StyleSpans<Collection<String>> highlighting) {
codeArea.setStyleSpans(0, highlighting);
}
private static StyleSpans<Collection<String>> computeHighlighting(String text) {
Matcher matcher = KEYWORD_PATTERN.matcher(text);
int lastKwEnd = 0;
StyleSpansBuilder<Collection<String>> spansBuilder
= new StyleSpansBuilder<>();
while (matcher.find()) {
spansBuilder.add(Collections.emptyList(), matcher.start() - lastKwEnd);
spansBuilder.add(Collections.singleton("keyword"), matcher.end() - matcher.start());
lastKwEnd = matcher.end();
}
spansBuilder.add(Collections.emptyList(), text.length() - lastKwEnd);
return spansBuilder.create();
}
}
But you have to add JAR file from the RichTextFX in your libraries. 但是您必须从库中的RichTextFX添加JAR文件。 However i don't posses knowledge about css.
但是我不具备关于CSS的知识。 So i couldn't improved it in styling or theming(i wanted to set Monokai Look and feel to syntax Text Area, But don't worry i will find a way someday. Or i somebody do find before me please share.) Thanks all for your suggestions and help especially @James_D.
因此,我无法在样式或主题方面进行改进(我想将Monokai外观设置为Text Area语法,但是请放心,我有一天会找到方法。或者我确实有人在我之前找到了,请分享。)为您的建议和帮助,尤其是@James_D。
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