bool Menu::LoadXML(const XMLElement& source, XMLFile* styleFile)
{
// Apply the style first, but only for non-internal elements
if (!internal_ && styleFile)
{
// Use style override if defined, otherwise type name
String styleName = source.GetAttribute("style");
if (styleName.Empty())
styleName = GetTypeName();
SetStyle(styleFile, styleName);
}
// Then load rest of the attributes from the source
if (!Serializable::LoadXML(source))
return false;
unsigned nextInternalChild = 0;
// Load child elements. Internal elements are not to be created as they already exist
XMLElement childElem = source.GetChild("element");
while (childElem)
{
bool internalElem = childElem.GetBool("internal");
bool popupElem = childElem.GetBool("popup");
String typeName = childElem.GetAttribute("type");
if (typeName.Empty())
typeName = "UIElement";
UIElement* child = 0;
if (!internalElem)
{
if (!popupElem)
child = CreateChild(ShortStringHash(typeName));
else
{
// Do not add the popup element as a child even temporarily, as that can break layouts
SharedPtr<UIElement> popup = DynamicCast<UIElement>(context_->CreateObject(ShortStringHash(typeName)));
if (!popup)
LOGERROR("Could not create popup element type " + ShortStringHash(typeName).ToString());
else
{
child = popup;
SetPopup(popup);
}
}
}
else
{
// An internal popup element should already exist
if (popupElem)
child = popup_;
else
{
for (unsigned i = nextInternalChild; i < children_.Size(); ++i)
{
if (children_[i]->IsInternal() && children_[i]->GetTypeName() == typeName)
{
child = children_[i];
nextInternalChild = i + 1;
break;
}
}
if (!child)
LOGWARNING("Could not find matching internal child element of type " + typeName + " in " + GetTypeName());
}
}
if (child)
{
if (!child->LoadXML(childElem, styleFile))
return false;
}
childElem = childElem.GetNext("element");
}
ApplyAttributes();
return true;
}
bool Menu::LoadXML(const XMLElement& source, XMLFile* styleFile, bool setInstanceDefault)
{
// Get style override if defined
String styleName = source.GetAttribute("style");
// Apply the style first, if the style file is available
if (styleFile)
{
// If not defined, use type name
if (styleName.Empty())
styleName = GetTypeName();
SetStyle(styleName, styleFile);
}
// The 'style' attribute value in the style file cannot be equals to original's applied style to prevent infinite loop
else if (!styleName.Empty() && styleName != appliedStyle_)
{
// Attempt to use the default style file
styleFile = GetDefaultStyle();
if (styleFile)
{
// Remember the original applied style
String appliedStyle(appliedStyle_);
SetStyle(styleName, styleFile);
appliedStyle_ = appliedStyle;
}
}
// Then load rest of the attributes from the source
if (!Serializable::LoadXML(source, setInstanceDefault))
return false;
unsigned nextInternalChild = 0;
// Load child elements. Internal elements are not to be created as they already exist
XMLElement childElem = source.GetChild("element");
while (childElem)
{
bool internalElem = childElem.GetBool("internal");
bool popupElem = childElem.GetBool("popup");
String typeName = childElem.GetAttribute("type");
if (typeName.Empty())
typeName = "UIElement";
unsigned index = childElem.HasAttribute("index") ? childElem.GetUInt("index") : M_MAX_UNSIGNED;
UIElement* child = 0;
if (!internalElem)
{
if (!popupElem)
child = CreateChild(typeName, String::EMPTY, index);
else
{
// Do not add the popup element as a child even temporarily, as that can break layouts
SharedPtr<UIElement> popup = DynamicCast<UIElement>(context_->CreateObject(typeName));
if (!popup)
URHO3D_LOGERROR("Could not create popup element type " + typeName);
else
{
child = popup;
SetPopup(popup);
}
}
}
else
{
// An internal popup element should already exist
if (popupElem)
child = popup_;
else
{
for (unsigned i = nextInternalChild; i < children_.Size(); ++i)
{
if (children_[i]->IsInternal() && children_[i]->GetTypeName() == typeName)
{
child = children_[i];
nextInternalChild = i + 1;
break;
}
}
if (!child)
URHO3D_LOGWARNING("Could not find matching internal child element of type " + typeName + " in " + GetTypeName());
}
}
if (child)
{
if (!styleFile)
styleFile = GetDefaultStyle();
// As popup is not a child element in itself, the parental chain to acquire the default style file is broken for popup's child elements
// To recover from this, popup needs to have the default style set in its own instance so the popup's child elements can find it later
if (popupElem)
child->SetDefaultStyle(styleFile);
if (!child->LoadXML(childElem, styleFile, setInstanceDefault))
return false;
}
childElem = childElem.GetNext("element");
}
ApplyAttributes();
return true;
}
