public int getListOffset(RSyntaxTextArea textArea, TabExpander e, float x0, float x) {
// If the coordinate in question is before this line's start, quit.
if (x0 >= x) return getOffset();
float currX = x0; // x-coordinate of current char.
float nextX = x0; // x-coordinate of next char.
float stableX = x0; // Cached ending x-coord. of last tab or token.
TokenImpl token = this;
int last = getOffset();
FontMetrics fm = null;
while (token != null && token.isPaintable()) {
fm = textArea.getFontMetricsForTokenType(token.getType());
char[] text = token.text;
int start = token.textOffset;
int end = start + token.textCount;
for (int i = start; i < end; i++) {
currX = nextX;
if (text[i] == '\t') {
nextX = e.nextTabStop(nextX, 0);
stableX = nextX; // Cache ending x-coord. of tab.
start = i + 1; // Do charsWidth() from next char.
} else {
nextX = stableX + fm.charsWidth(text, start, i - start + 1);
}
if (x >= currX && x < nextX) {
if ((x - currX) < (nextX - x)) {
return last + i - token.textOffset;
}
return last + i + 1 - token.textOffset;
}
}
stableX = nextX; // Cache ending x-coordinate of token.
last += token.textCount;
token = (TokenImpl) token.getNextToken();
}
// If we didn't find anything, return the end position of the text.
return last;
}
public Rectangle listOffsetToView(
RSyntaxTextArea textArea, TabExpander e, int pos, int x0, Rectangle rect) {
int stableX = x0; // Cached ending x-coord. of last tab or token.
TokenImpl token = this;
FontMetrics fm = null;
Segment s = new Segment();
while (token != null && token.isPaintable()) {
fm = textArea.getFontMetricsForTokenType(token.getType());
if (fm == null) {
return rect; // Don't return null as things'll error.
}
char[] text = token.text;
int start = token.textOffset;
int end = start + token.textCount;
// If this token contains the position for which to get the
// bounding box...
if (token.containsPosition(pos)) {
s.array = token.text;
s.offset = token.textOffset;
s.count = pos - token.getOffset();
// Must use this (actually fm.charWidth()), and not
// fm.charsWidth() for returned value to match up with where
// text is actually painted on OS X!
int w = Utilities.getTabbedTextWidth(s, fm, stableX, e, token.getOffset());
rect.x = stableX + w;
end = token.documentToToken(pos);
if (text[end] == '\t') {
rect.width = fm.charWidth(' ');
} else {
rect.width = fm.charWidth(text[end]);
}
return rect;
}
// If this token does not contain the position for which to get
// the bounding box...
else {
s.array = token.text;
s.offset = token.textOffset;
s.count = token.textCount;
stableX += Utilities.getTabbedTextWidth(s, fm, stableX, e, token.getOffset());
}
token = (TokenImpl) token.getNextToken();
}
// If we didn't find anything, we're at the end of the line. Return
// a width of 1 (so selection highlights don't extend way past line's
// text). A ConfigurableCaret will know to paint itself with a larger
// width.
rect.x = stableX;
rect.width = 1;
return rect;
}