Interactive labels

Author: rcx

libs/RSyntaxTextArea

@@ -109,7 +109,7 @@ public ArrayList<String> createPrint() {
                 if (parent.createLabelBrackets()) {
                     if (!firstLabel)
                         firstLabel = true;
-                    line += " {";
+                    line += " { // http://google.com";
                 }
 
                 if (parent.appendHandlerComments()) {

src/main/java/the/bytecode/club/jda/decompilers/bytecode/InstructionPrinter.java

@@ -2,11 +2,14 @@
 
 import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea;
 import org.fife.ui.rsyntaxtextarea.SyntaxConstants;
+import org.fife.ui.rsyntaxtextarea.Token;
+import org.fife.ui.rsyntaxtextarea.TokenTypes;
 import org.fife.ui.rtextarea.RTextScrollPane;
 import the.bytecode.club.jda.JDA;
 import the.bytecode.club.jda.api.ExceptionUI;
 import the.bytecode.club.jda.decompilers.JDADecompiler;
 import the.bytecode.club.jda.decompilers.bytecode.BytecodeDecompiler;
+import the.bytecode.club.jda.gui.fileviewer.BytecodeSyntaxArea;
 import the.bytecode.club.jda.gui.fileviewer.BytecodeTokenizer;
 import the.bytecode.club.jda.gui.fileviewer.ClassViewer;
 import the.bytecode.club.jda.settings.Settings;
@@ -37,8 +40,13 @@ public PaneUpdaterThread(ClassViewer viewer, JDADecompiler decompiler, int paneI
 
     public void run() {
         try {
-            RSyntaxTextArea panelArea = new RSyntaxTextArea();
-            panelArea.setSyntaxEditingStyle(decompiler instanceof BytecodeDecompiler ? BytecodeTokenizer.SYNTAX_STYLE_BYTECODE : SyntaxConstants.SYNTAX_STYLE_JAVA);
+            RSyntaxTextArea panelArea;
+            if (decompiler instanceof BytecodeDecompiler) {
+                panelArea = new BytecodeSyntaxArea();
+            } else {
+                panelArea = new RSyntaxTextArea();
+                panelArea.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_JAVA);
+            }
             panelArea.setCodeFoldingEnabled(true);
             panelArea.setAntiAliasingEnabled(true);
             final RTextScrollPane scrollPane = new RTextScrollPane(panelArea);

src/main/java/the/bytecode/club/jda/gui/PaneUpdaterThread.java

@@ -0,0 +1,53 @@
+package the.bytecode.club.jda.gui.fileviewer;
+
+import org.fife.ui.rsyntaxtextarea.*;
+
+import javax.swing.event.HyperlinkEvent;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+public class BytecodeSyntaxArea extends RSyntaxTextArea {
+    public BytecodeSyntaxArea() {
+        setSyntaxEditingStyle(BytecodeTokenizer.SYNTAX_STYLE_BYTECODE);
+
+        setLinkScanningMask(0);
+        setLinkGenerator(new BytecodeLinkGenerator());
+        addHyperlinkListener(e -> {
+            URL url = e.getURL();
+            String data = url.getFile();
+            switch (url.getProtocol()) {
+                case "label":
+                    System.out.println(data);
+                    setCaretPosition(0);
+                    break;
+            }
+        });
+    }
+
+    private static class BytecodeLinkGenerator implements LinkGenerator {
+        @Override
+        public LinkGeneratorResult isLinkAtOffset(RSyntaxTextArea textArea, int offs) {
+            Token t = textArea.modelToToken(offs);
+            if (t.getType() == TokenTypes.PREPROCESSOR) {
+                return new LinkGeneratorResult() {
+                    @Override
+                    public HyperlinkEvent execute() {
+                        try {
+                            URL url = new URL(null, "label:" + t.getLexeme(), new JDAURLHandler());
+                            return new HyperlinkEvent(textArea, HyperlinkEvent.EventType.ACTIVATED, url);
+                        } catch (MalformedURLException e) {
+                            e.printStackTrace();
+                            return null;
+                        }
+                    }
+
+                    @Override
+                    public int getSourceOffset() {
+                        return offs;
+                    }
+                };
+            }
+            return null;
+        }
+    }
+}

src/main/java/the/bytecode/club/jda/gui/fileviewer/BytecodeSyntaxArea.java

@@ -231,7 +231,7 @@ AnyCharacterButDoubleQuoteOrBackSlash	= ([^\\\"\n])
 EscapedSourceCharacter				= ("u"{HexDigit}{HexDigit}{HexDigit}{HexDigit})
 Escape							= ("\\"(([btnfr\"'\\])|([0123]{OctalDigit}?{OctalDigit}?)|({OctalDigit}{OctalDigit}?)|{EscapedSourceCharacter}))
 NonSeparator						= ([^\t\f\r\n\ \(\)\{\}\[\]\;\,\.\=\>\<\!\~\?\:\+\-\*\/\&\|\^\%\"\']|"#"|"\\")
-Label			            	= (L({Digit}+)\:?)
+Label			            	= (L({Digit}+))
 IdentifierStart					= ({LetterOrUnderscore}|"$")
 IdentifierPart						= ({IdentifierStart}|{Digit}|("\\"{EscapedSourceCharacter}))