private void GetCharCountDrawInfo (TextView textView, out int[,] info) {
if (textView.Buffer.LineCount == 0) {
info = null;
return; //shouldn't happen, but just to make sure
}
/* Get visible coordinates */
int minVisibleY = textView.VisibleRect.Top;
int maxVisibleY = textView.VisibleRect.Bottom;
/* Get visible start and end iters */
TextIter startIter, endIter;
int lineTop;
textView.GetLineAtY(out startIter, minVisibleY, out lineTop);
textView.GetLineAtY(out endIter, maxVisibleY, out lineTop);
int lineCount = endIter.Line - startIter.Line + 1;
int startLine = startIter.Line;
int endLine = endIter.Line;
/* Initializations */
info = new int[lineCount, 2];
/* Process start iter */
int startLineCharCount = startIter.CharsInLine - (lineCount > 1 ? 1 : 0); //subtract 1 for newline if there are >1 lines
info[0, 0] = startLineCharCount; //Char Count
Gdk.Rectangle startIterLocation = textView.GetIterLocation(startIter);
info[0, 1] = startIterLocation.Bottom - (startIterLocation.Height/2) - minVisibleY; //Y
/* If only 1 line, return */
if (lineCount == 1) {
return;
}
/* Process middle iters */
for (int i = 1, line = startLine + 1 ; line < endLine ; i++, line++) {
TextIter iter = textView.Buffer.GetIterAtLine(line);
int charCount = iter.CharsInLine - 1; //subtract 1 for newline
info[i, 0] = charCount;
Gdk.Rectangle iterLocation = textView.GetIterLocation(iter);
info[i, 1] = iterLocation.Bottom - (iterLocation.Height/2) - minVisibleY; //Y
}
/* Process end iter */
int endLineCharCount = endIter.CharsInLine - (endLine == textView.Buffer.LineCount - 1 ? 0 : 1); //subtract newline if this isn't the last line in the buffer
info[lineCount-1, 0] = endLineCharCount;
Gdk.Rectangle endIterLocation = textView.GetIterLocation(endIter);
info[lineCount-1, 1] = endIterLocation.Bottom - (endIterLocation.Height/2) - minVisibleY; //Y
}
