const CodeDocument::Position CodeEditorComponent::getPositionAt (int x, int y)
{
const int line = y / lineHeight + firstLineOnScreen;
const int column = roundToInt ((x - (gutter - xOffset * charWidth)) / charWidth);
const int index = columnToIndex (line, column);
return CodeDocument::Position (&document, line, index);
}
void CodeEditorComponent::moveLineDelta (const int delta, const bool selecting)
{
CodeDocument::Position pos (caretPos);
const int newLineNum = pos.getLineNumber() + delta;
if (columnToTryToMaintain < 0)
columnToTryToMaintain = indexToColumn (pos.getLineNumber(), pos.getIndexInLine());
pos.setLineAndIndex (newLineNum, columnToIndex (newLineNum, columnToTryToMaintain));
const int colToMaintain = columnToTryToMaintain;
moveCaretTo (pos, selecting);
columnToTryToMaintain = colToMaintain;
}
bool CodeEditorComponent::skipBackwardsToPreviousTab()
{
const String currentLineText (caretPos.getLineText().removeCharacters ("\r\n"));
const int currentIndex = caretPos.getIndexInLine();
if (currentLineText.isNotEmpty() && currentLineText.length() == currentIndex)
{
const int currentLine = caretPos.getLineNumber();
const int currentColumn = indexToColumn (currentLine, currentIndex);
const int previousTabColumn = (currentColumn - 1) - ((currentColumn - 1) % spacesPerTab);
const int previousTabIndex = columnToIndex (currentLine, previousTabColumn);
if (currentLineText.substring (previousTabIndex, currentIndex).trim().isEmpty())
{
selectionStart.moveBy (previousTabIndex - currentIndex);
return true;
}
}
return false;
}