void
nsSVGTextFrame::UpdateGlyphPositioning(PRBool aForceGlobalTransform)
{
if (mMetricsState == suspended || !mPositioningDirty)
return;
SetWhitespaceHandling();
nsISVGGlyphFragmentNode* node = GetFirstGlyphFragmentChildNode();
if (!node) return;
mPositioningDirty = PR_FALSE;
nsISVGGlyphFragmentLeaf *fragment, *firstFragment;
firstFragment = node->GetFirstGlyphFragment();
if (!firstFragment) {
return;
}
float x = 0, y = 0;
{
nsCOMPtr<nsIDOMSVGLengthList> list = GetX();
GetSingleValue(list, &x);
}
{
nsCOMPtr<nsIDOMSVGLengthList> list = GetY();
GetSingleValue(list, &y);
}
// loop over chunks
while (firstFragment) {
{
nsCOMPtr<nsIDOMSVGLengthList> list = firstFragment->GetX();
GetSingleValue(list, &x);
}
{
nsCOMPtr<nsIDOMSVGLengthList> list = firstFragment->GetY();
GetSingleValue(list, &y);
}
// check for startOffset on textPath
nsSVGTextPathFrame *textPath = firstFragment->FindTextPathParent();
if (textPath) {
if (!textPath->GetPathFrame()) {
// invalid text path, give up
return;
}
x = textPath->GetStartOffset();
}
// determine x offset based on text_anchor:
PRUint8 anchor = firstFragment->GetTextAnchor();
float chunkLength = 0.0f;
if (anchor != NS_STYLE_TEXT_ANCHOR_START) {
// need to get the total chunk length
fragment = firstFragment;
while (fragment) {
float dx = 0.0f;
nsCOMPtr<nsIDOMSVGLengthList> list = fragment->GetDx();
GetSingleValue(list, &dx);
chunkLength += dx + fragment->GetAdvance(aForceGlobalTransform);
fragment = fragment->GetNextGlyphFragment();
if (fragment && fragment->IsAbsolutelyPositioned())
break;
}
}
if (anchor == NS_STYLE_TEXT_ANCHOR_MIDDLE)
x -= chunkLength/2.0f;
else if (anchor == NS_STYLE_TEXT_ANCHOR_END)
x -= chunkLength;
// set position of each fragment in this chunk:
fragment = firstFragment;
while (fragment) {
float dx = 0.0f, dy = 0.0f;
{
nsCOMPtr<nsIDOMSVGLengthList> list = fragment->GetDx();
GetSingleValue(list, &dx);
}
{
nsCOMPtr<nsIDOMSVGLengthList> list = fragment->GetDy();
GetSingleValue(list, &dy);
}
fragment->SetGlyphPosition(x + dx, y + dy, aForceGlobalTransform);
x += dx + fragment->GetAdvance(aForceGlobalTransform);
y += dy;
fragment = fragment->GetNextGlyphFragment();
if (fragment && fragment->IsAbsolutelyPositioned())
break;
}
firstFragment = fragment;
}
}
bool CTextureDatabase::ClearCachedTexture(const std::string &url, std::string &cacheFile)
{
std::string id = GetSingleValue(PrepareSQL("select id from texture where url='%s'", url.c_str()));
return !id.empty() ? ClearCachedTexture(strtol(id.c_str(), NULL, 10), cacheFile) : false;
}