void WTreeNode::update()
{
bool isLast = isLastChildNode();
if (!visible_) {
layout_->bindString("selected", "Wt-root");
childContainer()->addStyleClass("Wt-root");
} else {
if (tree()) {
const WTree::WTreeNodeSet &s = tree()->selectedNodes();
if (s.find(this) != s.end())
layout_->bindString("selected", WApplication::instance()->theme()->activeClass());
else
layout_->bindEmpty("selected");
} else
layout_->bindEmpty("selected");
childContainer()->removeStyleClass("Wt-root");
}
WTreeNode *parent = parentNode();
if (parent && !parent->childrenDecorated_) {
// FIXME
}
if (expandIcon_->state() != (isExpanded() ? 1 : 0))
expandIcon_->setState(isExpanded() ? 1 : 0);
if (childContainer()->isHidden() != !isExpanded())
childContainer()->setHidden(!isExpanded());
if (labelIcon_ && (labelIcon_->state() != (isExpanded() ? 1 : 0)))
labelIcon_->setState(isExpanded() ? 1 : 0);
toggleStyleClass("Wt-trunk", !isLast);
layout_->bindString("trunk-class", isLast ? "Wt-end" : "Wt-trunk");
if (!parentNode() || parentNode()->isExpanded()) {
if (childCountPolicy_ == Enabled && !populated_)
doPopulate();
if (!expandable()) {
if (noExpandIcon_->parent() == 0) {
layout_->takeWidget("expand");
layout_->bindWidget("expand", noExpandIcon_);
}
} else {
if (expandIcon_->parent() == 0) {
layout_->takeWidget("expand");
layout_->bindWidget("expand", expandIcon_);
}
}
}
if (childCountPolicy_ != Disabled && populated_ && childCountLabel_) {
int n = displayedChildCount();
if (n)
childCountLabel_->setText
(WString::fromUTF8("(" + boost::lexical_cast<std::string>(n) + ")"));
else
childCountLabel_->setText(WString());
}
}
void WTreeNode::setChildCountPolicy(ChildCountPolicy policy)
{
if (policy != Disabled && !childCountLabel_) {
childCountLabel_ = new WText();
childCountLabel_->setMargin(WLength(7), Left);
childCountLabel_->setStyleClass("Wt-childcount");
labelArea()->addWidget(childCountLabel_);
}
childCountPolicy_ = policy;
if (childCountPolicy_ == Enabled) {
WTreeNode *parent = parentNode();
if (parent && parent->isExpanded())
if (doPopulate())
update();
}
if (childCountPolicy_ != Disabled) {
for (unsigned i = 0; i < childNodes_.size(); ++i)
childNodes_[i]->setChildCountPolicy(childCountPolicy_);
}
}
void WTreeNode::setChildCountPolicy(ChildCountPolicy policy)
{
if (policy != Disabled && !childCountLabel_) {
childCountLabel_ = new WText();
childCountLabel_->setMargin(WLength(7), Left);
// "treenodechildcount" is for backwards compatibility.
childCountLabel_->setStyleClass("Wt-childcount treenodechildcount");
layout_->elementAt(0, 1)->addWidget(childCountLabel_);
}
childCountPolicy_ = policy;
if (childCountPolicy_ == Enabled) {
WTreeNode *parent = parentNode();
if (parent && parent->isExpanded())
if (doPopulate())
update();
}
if (childCountPolicy_ != Disabled) {
for (unsigned i = 0; i < childNodes_.size(); ++i)
childNodes_[i]->setChildCountPolicy(childCountPolicy_);
}
}
bool WTreeNode::expandable()
{
if (interactive_) {
doPopulate();
return !childNodes_.empty();
} else
return false;
}
void WTreeNode::loadChildren()
{
if (!childrenLoaded_) {
doPopulate();
for (unsigned i = 0; i < childNodes_.size(); ++i)
childContainer()->addWidget(childNodes_[i]);
expandIcon_->icon1Clicked().connect(this, &WTreeNode::doExpand);
expandIcon_->icon2Clicked().connect(this, &WTreeNode::doCollapse);
resetLearnedSlots();
childrenLoaded_ = true;
}
}
void WTreeNode::setLoadPolicy(LoadPolicy loadPolicy)
{
loadPolicy_ = loadPolicy;
switch (loadPolicy) {
case PreLoading:
loadChildren();
break;
case NextLevelLoading:
if (isExpanded()) {
loadChildren();
loadGrandChildren();
} else {
WTreeNode *parent = parentNode();
if (parent && parent->isExpanded())
loadChildren();
expandIcon_
->icon1Clicked().connect(this, &WTreeNode::loadGrandChildren);
}
break;
case LazyLoading:
if (isExpanded())
loadChildren();
else {
if (childCountPolicy_ == Enabled) {
WTreeNode *parent = parentNode();
if (parent && parent->isExpanded())
doPopulate();
}
expandIcon_->icon1Clicked().connect(this, &WTreeNode::expand);
}
}
if (loadPolicy_ != LazyLoading) {
for (unsigned i = 0; i < childNodes_.size(); ++i)
childNodes_[i]->setLoadPolicy(loadPolicy_);
}
}
void WTreeNode::update()
{
bool isLast = isLastChildNode();
if (!visible_) {
layout_->rowAt(0)->hide();
expandIcon_->hide();
layout_->elementAt(0, 0)->resize(0, WLength::Auto);
layout_->elementAt(1, 0)->resize(0, WLength::Auto);
} else {
layout_->rowAt(0)->show();
expandIcon_->show();
layout_->elementAt(0, 0)->resize(WLength::Auto, WLength::Auto);
layout_->elementAt(1, 0)->resize(WLength::Auto, WLength::Auto);
}
WTreeNode *parent = parentNode();
if (parent && !parent->childrenDecorated_) {
layout_->elementAt(0, 0)->hide();
layout_->elementAt(1, 0)->hide();
}
if (expandIcon_->state() != (isExpanded() ? 1 : 0))
expandIcon_->setState(isExpanded() ? 1 : 0);
if (layout_->rowAt(1)->isHidden() != !isExpanded())
layout_->rowAt(1)->setHidden(!isExpanded());
if (labelIcon_ && (labelIcon_->state() != (isExpanded() ? 1 : 0)))
labelIcon_->setState(isExpanded() ? 1 : 0);
if (isLast) {
layout_->elementAt(0, 0)->setStyleClass("Wt-end");
layout_->elementAt(1, 0)->setStyleClass("");
} else {
layout_->elementAt(0, 0)->setStyleClass("Wt-trunk");
layout_->elementAt(1, 0)->setStyleClass("Wt-trunk");
}
if (!parentNode() || parentNode()->isExpanded()) {
if (childCountPolicy_ == Enabled && !populated_)
doPopulate();
if (!expandable()) {
if (noExpandIcon_->parent() == 0) {
layout_->elementAt(0, 0)->addWidget(noExpandIcon_);
layout_->elementAt(0, 0)->removeWidget(expandIcon_);
}
} else {
if (expandIcon_->parent() == 0) {
layout_->elementAt(0, 0)->addWidget(expandIcon_);
layout_->elementAt(0, 0)->removeWidget(noExpandIcon_);
}
}
}
if (childCountPolicy_ != Disabled && populated_ && childCountLabel_) {
int n = displayedChildCount();
if (n)
childCountLabel_->setText
(WString::fromUTF8("(" + boost::lexical_cast<std::string>(n) + ")"));
else
childCountLabel_->setText(WString());
}
}
Coords::Coords(std::string file)
{
doPopulate(file);
}
