/**
* Returns the end of the word at the given offset.
*
* @param textArea The text area.
* @param offs The offset into the text area's content.
* @return The end offset of the word.
* @throws BadLocationException If <code>offs</code> is invalid.
* @see #getWordStart(RSyntaxTextArea, int)
*/
public static int getWordEnd(RSyntaxTextArea textArea, int offs) throws BadLocationException {
Document doc = textArea.getDocument();
int endOffs = textArea.getLineEndOffsetOfCurrentLine();
int lineEnd = Math.min(endOffs, doc.getLength());
if (offs == lineEnd) { // End of the line.
return offs;
}
String s = doc.getText(offs, lineEnd - offs - 1);
if (s != null && s.length() > 0) { // Should always be true
int i = 0;
int count = s.length();
char ch = s.charAt(i);
if (Character.isWhitespace(ch)) {
while (i < count && Character.isWhitespace(s.charAt(i++))) ;
} else if (Character.isLetterOrDigit(ch)) {
while (i < count && Character.isLetterOrDigit(s.charAt(i++))) ;
} else {
i = 2;
}
offs += i - 1;
}
return offs;
}
public static void setFont(RSyntaxTextArea textArea, Font font) {
if (font != null) {
SyntaxScheme ss = textArea.getSyntaxScheme();
ss = (SyntaxScheme) ss.clone();
for (int i = 0; i < ss.getStyleCount(); i++) {
if (ss.getStyle(i) != null) {
ss.getStyle(i).font = font;
}
}
textArea.setSyntaxScheme(ss);
textArea.setFont(font);
}
}
/**
* Determines the position in the model that is closest to the given view location in the row
* below. The component given must have a size to compute the result. If the component doesn't
* have a size a value of -1 will be returned.
*
* @param c the editor
* @param offs the offset in the document >= 0
* @param x the X coordinate >= 0
* @return the position >= 0 if the request can be computed, otherwise a value of -1 will be
* returned.
* @exception BadLocationException if the offset is out of range
*/
public static final int getPositionBelow(RSyntaxTextArea c, int offs, float x, TabExpander e)
throws BadLocationException {
TokenOrientedView tov = (TokenOrientedView) e;
Token token = tov.getTokenListForPhysicalLineBelow(offs);
if (token == null) return -1;
// A line containing only Token.NULL is an empty line.
else if (token.type == Token.NULL) {
int line = c.getLineOfOffset(offs); // Sure to be > c.getLineCount()-1 ??
return c.getLineStartOffset(line + 1);
} else {
return token.getListOffset(c, e, 0, x);
}
}
/**
* Provides a way to determine the next visually represented model location at which one might
* place a caret. Some views may not be visible, they might not be in the same order found in the
* model, or they just might not allow access to some of the locations in the model.
*
* <p>NOTE: You should only call this method if the passed-in <code>javax.swing.text.View</code>
* is an instance of {@link TokenOrientedView} and <code>javax.swing.text.TabExpander</code>;
* otherwise, a <code>ClassCastException</code> could be thrown.
*
* @param pos the position to convert >= 0
* @param a the allocated region in which to render
* @param direction the direction from the current position that can be thought of as the arrow
* keys typically found on a keyboard. This will be one of the following values:
* <ul>
* <li>SwingConstants.WEST
* <li>SwingConstants.EAST
* <li>SwingConstants.NORTH
* <li>SwingConstants.SOUTH
* </ul>
*
* @return the location within the model that best represents the next location visual position
* @exception BadLocationException
* @exception IllegalArgumentException if <code>direction</code> doesn't have one of the legal
* values above
*/
public static int getNextVisualPositionFrom(
int pos, Position.Bias b, Shape a, int direction, Position.Bias[] biasRet, View view)
throws BadLocationException {
biasRet[0] = Position.Bias.Forward;
// Do we want the "next position" above, below, to the left or right?
switch (direction) {
case NORTH:
case SOUTH:
if (pos == -1) {
pos = (direction == NORTH) ? Math.max(0, view.getEndOffset() - 1) : view.getStartOffset();
break;
}
RSyntaxTextArea target = (RSyntaxTextArea) view.getContainer();
Caret c = (target != null) ? target.getCaret() : null;
// YECK! Ideally, the x location from the magic caret
// position would be passed in.
Point mcp;
if (c != null) mcp = c.getMagicCaretPosition();
else mcp = null;
int x;
if (mcp == null) {
Rectangle loc = target.modelToView(pos);
x = (loc == null) ? 0 : loc.x;
} else {
x = mcp.x;
}
if (direction == NORTH) pos = getPositionAbove(target, pos, x, (TabExpander) view);
else pos = getPositionBelow(target, pos, x, (TabExpander) view);
break;
case WEST:
if (pos == -1) pos = Math.max(0, view.getEndOffset() - 1);
else pos = Math.max(0, pos - 1);
break;
case EAST:
if (pos == -1) pos = view.getStartOffset();
else pos = Math.min(pos + 1, view.getDocument().getLength());
break;
default:
throw new IllegalArgumentException("Bad direction: " + direction);
}
return pos;
}
/**
* Returns the start of the word at the given offset.
*
* @param textArea The text area.
* @param offs The offset into the text area's content.
* @return The start offset of the word.
* @throws BadLocationException If <code>offs</code> is invalid.
* @see #getWordEnd(RSyntaxTextArea, int)
*/
public static int getWordStart(RSyntaxTextArea textArea, int offs) throws BadLocationException {
Document doc = textArea.getDocument();
Element line = getLineElem(doc, offs);
if (line == null) {
throw new BadLocationException("No word at " + offs, offs);
}
int lineStart = line.getStartOffset();
if (offs == lineStart) { // Start of the line.
return offs;
}
int endOffs = Math.min(offs + 1, doc.getLength());
String s = doc.getText(lineStart, endOffs - lineStart);
if (s != null && s.length() > 0) {
int i = s.length() - 1;
char ch = s.charAt(i);
if (Character.isWhitespace(ch)) {
while (i > 0 && Character.isWhitespace(s.charAt(i - 1))) {
i--;
}
offs = lineStart + i;
} else if (Character.isLetterOrDigit(ch)) {
while (i > 0 && Character.isLetterOrDigit(s.charAt(i - 1))) {
i--;
}
offs = lineStart + i;
}
}
return offs;
}
/**
* Returns the bounding box (in the current view) of a specified position in the model. This
* method is designed for line-wrapped views to use, as it allows you to specify a "starting
* position" in the line, from which the x-value is assumed to be zero. The idea is that you
* specify the first character in a physical line as <code>p0</code>, as this is the character
* where the x-pixel value is 0.
*
* @param textArea The text area containing the text.
* @param s A segment in which to load the line. This is passed in so we don't have to reallocate
* a new <code>Segment</code> for each call.
* @param p0 The starting position in the physical line in the document.
* @param p1 The position for which to get the bounding box in the view.
* @param e How to expand tabs.
* @param rect The rectangle whose x- and width-values are changed to represent the bounding box
* of <code>p1</code>. This is reused to keep from needlessly reallocating Rectangles.
* @param x0 The x-coordinate (pixel) marking the left-hand border of the text. This is useful if
* the text area has a border, for example.
* @return The bounding box in the view of the character <code>p1</code>.
* @throws BadLocationException If <code>p0</code> or <code>p1</code> is not a valid location in
* the specified text area's document.
* @throws IllegalArgumentException If <code>p0</code> and <code>p1</code> are not on the same
* line.
*/
public static Rectangle getLineWidthUpTo(
RSyntaxTextArea textArea, Segment s, int p0, int p1, TabExpander e, Rectangle rect, int x0)
throws BadLocationException {
RSyntaxDocument doc = (RSyntaxDocument) textArea.getDocument();
// Ensure p0 and p1 are valid document positions.
if (p0 < 0) throw new BadLocationException("Invalid document position", p0);
else if (p1 > doc.getLength()) throw new BadLocationException("Invalid document position", p1);
// Ensure p0 and p1 are in the same line, and get the start/end
// offsets for that line.
Element map = doc.getDefaultRootElement();
int lineNum = map.getElementIndex(p0);
// We do ">1" because p1 might be the first position on the next line
// or the last position on the previous one.
// if (lineNum!=map.getElementIndex(p1))
if (Math.abs(lineNum - map.getElementIndex(p1)) > 1)
throw new IllegalArgumentException(
"p0 and p1 are not on the " + "same line (" + p0 + ", " + p1 + ").");
// Get the token list.
Token t = doc.getTokenListForLine(lineNum);
// Modify the token list 't' to begin at p0 (but still have correct
// token types, etc.), and get the x-location (in pixels) of the
// beginning of this new token list.
makeTokenListStartAt(t, p0, e, textArea, 0);
rect = t.listOffsetToView(textArea, e, p1, x0, rect);
return rect;
}
@Override
public LinkGeneratorResult isLinkAtOffset(RSyntaxTextArea textArea, final int offs) {
Token token = textArea.modelToToken(offs);
if (token == null) {
return null;
}
String reference = pdeKeywords.getReference(token.getLexeme());
if (reference != null
|| (token.getType() == TokenTypes.DATA_TYPE
|| token.getType() == TokenTypes.VARIABLE
|| token.getType() == TokenTypes.FUNCTION)) {
return new LinkGeneratorResult() {
@Override
public int getSourceOffset() {
return offs;
}
@Override
public HyperlinkEvent execute() {
LOG.fine("Open Reference: " + reference);
Base.showReference("Reference/" + reference);
return null;
}
};
}
return null;
}
private void changeStyleProgrammatically() {
// Set the font for all token types.
setFont(textArea, new Font("Courier New", Font.PLAIN, 12));
// Change a few things here and there.
SyntaxScheme scheme = textArea.getSyntaxScheme();
scheme.getStyle(Token.RESERVED_WORD).background = Color.white;
scheme.getStyle(Token.RESERVED_WORD).foreground = Color.MAGENTA.darker().darker();
scheme.getStyle(Token.DATA_TYPE).foreground = Color.blue;
scheme.getStyle(Token.LITERAL_STRING_DOUBLE_QUOTE).underline = true;
scheme.getStyle(Token.LITERAL_NUMBER_HEXADECIMAL).underline = true;
scheme.getStyle(Token.LITERAL_NUMBER_HEXADECIMAL).background = Color.pink;
scheme.getStyle(Token.COMMENT_EOL).font = new Font("Georgia", Font.ITALIC, 10);
textArea.revalidate();
}
public void switchDocument(Document document, UndoManager newUndo) {
// HACK: Dont discard changes on curret UndoManager.
// BUG: https://github.com/bobbylight/RSyntaxTextArea/issues/84
setUndoManager(null); // bypass reset current undo manager...
super.setDocument(document);
setUndoManager((RUndoManager) newUndo);
// HACK: Complement previous hack (hide code folding on switch) | Drawback: Lose folding state
// if(sketch.getCodeCount() > 1 && textarea.isCodeFoldingEnabled()){
// textarea.setCodeFoldingEnabled(false);
// textarea.setCodeFoldingEnabled(true);
// }
}
public void processKeyEvent(KeyEvent evt) {
// this had to be added because the menu key events weren't making it up to the frame.
switch (evt.getID()) {
case KeyEvent.KEY_TYPED:
if (editorListener != null) editorListener.keyTyped(evt);
break;
case KeyEvent.KEY_PRESSED:
if (editorListener != null) editorListener.keyPressed(evt);
break;
case KeyEvent.KEY_RELEASED:
// inputHandler.keyReleased(evt);
break;
}
if (!evt.isConsumed()) {
super.processKeyEvent(evt);
}
}
/**
* ERROR (exceptions) WARN (when something happens that's not supposed to) INFO (wire output)
* DEBUG (test/displaying intermediate values), TRACE (start/end method)
*/
public ConnectionConsoleWindow(ToolBar toolBar) {
final ConnectionConsoleWindow thisConsole = this;
this.toolBar = toolBar;
java.net.URL url = ClassLoader.getSystemResource("ethereum-icon.png");
Toolkit kit = Toolkit.getDefaultToolkit();
Image img = kit.createImage(url);
this.setIconImage(img);
addCloseAction();
JPanel cp = new JPanel(new BorderLayout());
AbstractTokenMakerFactory atmf =
(AbstractTokenMakerFactory) TokenMakerFactory.getDefaultInstance();
atmf.putMapping("text/console", "org.ethereum.gui.ConsoleTokenMaker");
textArea = new RSyntaxTextArea(16, 44);
textArea.setSyntaxEditingStyle("text/console");
// textArea.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_LISP);
textArea.setCodeFoldingEnabled(true);
textArea.setAntiAliasingEnabled(true);
changeStyleProgrammatically();
RTextScrollPane sp = new RTextScrollPane(textArea);
cp.add(sp);
setContentPane(cp);
setTitle("Connection Console");
// setDefaultCloseOperation(EXIT_ON_CLOSE);
pack();
setLocation(802, 460);
if (CONFIG.peerDiscovery()) UIEthereumManager.ethereum.startPeerDiscovery();
Thread t =
new Thread() {
public void run() {
UIEthereumManager.ethereum.connect(
SystemProperties.CONFIG.activePeerIP(), SystemProperties.CONFIG.activePeerPort());
}
};
UIEthereumManager.ethereum.addListener(
new EthereumListenerAdapter() {
@Override
public void trace(final String output) {
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
textArea.append(output);
textArea.append("\n");
if (autoScroll) textArea.setCaretPosition(textArea.getText().length());
}
});
}
});
t.start();
}
public static int getMatchingBracketPosition(RSyntaxTextArea textArea) {
try {
// Actually position just BEFORE caret.
int caretPosition = textArea.getCaretPosition() - 1;
if (caretPosition > -1) {
// Some variables that will be used later.
Token token;
Element map;
int curLine;
Element line;
int start, end;
RSyntaxDocument doc = (RSyntaxDocument) textArea.getDocument();
char bracket = doc.charAt(caretPosition);
// First, see if the previous char was a bracket
// ('{', '}', '(', ')', '[', ']').
// If it was, then make sure this bracket isn't sitting in
// the middle of a comment or string. If it isn't, then
// initialize some stuff so we can continue on.
char bracketMatch;
boolean goForward;
switch (bracket) {
case '{':
case '(':
case '[':
// Ensure this bracket isn't in a comment.
map = doc.getDefaultRootElement();
curLine = map.getElementIndex(caretPosition);
line = map.getElement(curLine);
start = line.getStartOffset();
end = line.getEndOffset();
token = doc.getTokenListForLine(curLine);
token = RSyntaxUtilities.getTokenAtOffset(token, caretPosition);
// All brackets are always returned as "separators."
if (token.type != Token.SEPARATOR) {
return -1;
}
bracketMatch = bracket == '{' ? '}' : (bracket == '(' ? ')' : ']');
goForward = true;
break;
case '}':
case ')':
case ']':
// Ensure this bracket isn't in a comment.
map = doc.getDefaultRootElement();
curLine = map.getElementIndex(caretPosition);
line = map.getElement(curLine);
start = line.getStartOffset();
end = line.getEndOffset();
token = doc.getTokenListForLine(curLine);
token = RSyntaxUtilities.getTokenAtOffset(token, caretPosition);
// All brackets are always returned as "separators."
if (token.type != Token.SEPARATOR) {
return -1;
}
bracketMatch = bracket == '}' ? '{' : (bracket == ')' ? '(' : '[');
goForward = false;
break;
default:
return -1;
}
if (goForward) {
int lastLine = map.getElementCount();
// Start just after the found bracket since we're sure
// we're not in a comment.
start = caretPosition + 1;
int numEmbedded = 0;
boolean haveTokenList = false;
while (true) {
doc.getText(start, end - start, charSegment);
int segOffset = charSegment.offset;
for (int i = segOffset; i < segOffset + charSegment.count; i++) {
char ch = charSegment.array[i];
if (ch == bracket) {
if (haveTokenList == false) {
token = doc.getTokenListForLine(curLine);
haveTokenList = true;
}
int offset = start + (i - segOffset);
token = RSyntaxUtilities.getTokenAtOffset(token, offset);
if (token.type == Token.SEPARATOR) numEmbedded++;
} else if (ch == bracketMatch) {
if (haveTokenList == false) {
token = doc.getTokenListForLine(curLine);
haveTokenList = true;
}
int offset = start + (i - segOffset);
token = RSyntaxUtilities.getTokenAtOffset(token, offset);
if (token.type == Token.SEPARATOR) {
if (numEmbedded == 0) return offset;
numEmbedded--;
}
}
} // End of for (int i=segOffset; i<segOffset+charSegment.count; i++).
// Bail out if we've gone through all lines and
// haven't found the match.
if (++curLine == lastLine) return -1;
// Otherwise, go through the next line.
haveTokenList = false;
line = map.getElement(curLine);
start = line.getStartOffset();
end = line.getEndOffset();
} // End of while (true).
} // End of if (goForward).
// Otherwise, we're going backward through the file
// (since we found '}', ')' or ']').
else { // goForward==false
// End just before the found bracket since we're sure
// we're not in a comment.
end = caretPosition; // - 1;
int numEmbedded = 0;
boolean haveTokenList = false;
Token t2;
while (true) {
doc.getText(start, end - start, charSegment);
int segOffset = charSegment.offset;
int iStart = segOffset + charSegment.count - 1;
for (int i = iStart; i >= segOffset; i--) {
char ch = charSegment.array[i];
if (ch == bracket) {
if (haveTokenList == false) {
token = doc.getTokenListForLine(curLine);
haveTokenList = true;
}
int offset = start + (i - segOffset);
t2 = RSyntaxUtilities.getTokenAtOffset(token, offset);
if (t2.type == Token.SEPARATOR) numEmbedded++;
} else if (ch == bracketMatch) {
if (haveTokenList == false) {
token = doc.getTokenListForLine(curLine);
haveTokenList = true;
}
int offset = start + (i - segOffset);
t2 = RSyntaxUtilities.getTokenAtOffset(token, offset);
if (t2.type == Token.SEPARATOR) {
if (numEmbedded == 0) return offset;
numEmbedded--;
}
}
} // End of for (int i=segOffset; i<segOffset+charSegment.count; i++).
// Bail out if we've gone through all lines and
// haven't found the match.
if (--curLine == -1) return -1;
// Otherwise, get ready for going through the
// next line.
haveTokenList = false;
line = map.getElement(curLine);
start = line.getStartOffset();
end = line.getEndOffset();
} // End of while (true).
} // End of else.
} // End of if (caretPosition>-1).
} catch (BadLocationException ble) {
// Shouldn't ever happen.
ble.printStackTrace();
}
// Something went wrong...
return -1;
}