float SVGTextContentElement::getRotationOfChar(long charnum, ExceptionCode& ec) const
{
document()->updateLayoutIgnorePendingStylesheets();
if (charnum < 0 || charnum > getNumberOfChars()) {
ec = INDEX_SIZE_ERR;
return 0.0f;
}
return executeTextQuery(this, SVGInlineTextBoxQueryWalker::Rotation, charnum).floatResult();
}
FloatRect SVGTextContentElement::getExtentOfChar(unsigned charnum, ExceptionCode& ec) const
{
document()->updateLayoutIgnorePendingStylesheets();
if (charnum > getNumberOfChars()) {
ec = INDEX_SIZE_ERR;
return FloatRect();
}
return executeTextQuery(this, SVGInlineTextBoxQueryWalker::Extent, charnum).rectResult();
}
float SVGTextContentElement::getSubStringLength(unsigned charnum, unsigned nchars, ExceptionCode& ec) const
{
document()->updateLayoutIgnorePendingStylesheets();
unsigned numberOfChars = getNumberOfChars();
if (charnum >= numberOfChars) {
ec = INDEX_SIZE_ERR;
return 0.0f;
}
return executeTextQuery(this, SVGInlineTextBoxQueryWalker::SubStringLength, charnum, nchars).floatResult();
}
float SVGTextContentElement::getSubStringLength(long charnum, long nchars, ExceptionCode& ec) const
{
document()->updateLayoutIgnorePendingStylesheets();
// Differences to SVG 1.1 spec, as the spec is clearly wrong. TODO: Raise SVG WG issue!
// #1: We accept a 'long nchars' parameter instead of 'unsigned long nchars' to be able
// to catch cases where someone called us with a negative 'nchars' value - in those
// cases we'll just throw a 'INDEX_SIZE_ERR' (acid3 implicitly agrees with us)
//
// #2: We only throw if 'charnum + nchars' is greater than the number of characters, not
// if it's equal, as this really doesn't make any sense (no way to measure the last character!)
//
// #3: If 'charnum' is greater than or equal to 'numberOfChars', we're throwing an exception here
// as the result is undefined for every other value of 'nchars' than '0'.
long numberOfChars = getNumberOfChars();
if (charnum < 0 || nchars < 0 || numberOfChars <= charnum || charnum + nchars > numberOfChars) {
ec = INDEX_SIZE_ERR;
return 0.0f;
}
return executeTextQuery(this, SVGInlineTextBoxQueryWalker::SubStringLength, charnum, nchars).floatResult();
}
long SVGTextContentElement::getCharNumAtPosition(const FloatPoint& point) const
{
document()->updateLayoutIgnorePendingStylesheets();
return executeTextQuery(this, SVGInlineTextBoxQueryWalker::CharacterNumberAtPosition, 0.0f, 0.0f, point).longResult();
}
float SVGTextContentElement::getComputedTextLength() const
{
document()->updateLayoutIgnorePendingStylesheets();
return executeTextQuery(this, SVGInlineTextBoxQueryWalker::TextLength).floatResult();
}
long SVGTextContentElement::getNumberOfChars() const
{
document()->updateLayoutIgnorePendingStylesheets();
return executeTextQuery(this, SVGInlineTextBoxQueryWalker::NumberOfCharacters).longResult();
}