C++ Element::SetProperty方法代码示例

// Adds a new option to the select control.
int WidgetDropDown::AddOption(const Rocket::Core::String& rml, const Rocket::Core::String& value, int before, bool select, bool selectable)
{
	// Instance a new element for the option.
	Core::Element* element = Core::Factory::InstanceElement(selection_element, "*", "option", Rocket::Core::XMLAttributes());

	// Force to block display and inject the RML. Register a click handler so we can be notified of selection.
	element->SetProperty("display", "block");
	element->SetProperty("clip", "auto");
	element->SetInnerRML(rml);
	element->AddEventListener("click", this);

	int option_index;
	if (before < 0 ||
		before >= (int) options.size())
	{
		selection_element->AppendChild(element);
		options.push_back(SelectOption(element, value, selectable));
		option_index = (int) options.size() - 1;
	}
	else
	{
		selection_element->InsertBefore(element, selection_element->GetChild(before));
		options.insert(options.begin() + before, SelectOption(element, value, selectable));
		option_index = before;
	}

	element->RemoveReference();

	// Select the option if appropriate.
	if (select)
		SetSelection(option_index);

	box_layout_dirty = true;
	return option_index;
}

void ElementInfo::ProcessEvent(Core::Event& event)
{
	Core::ElementDocument::ProcessEvent(event);

	// Only process events if we're visible
	if (IsVisible())
	{
		if (event == "click")
		{
			Core::Element* target_element = event.GetTargetElement();

			// Deal with clicks on our own elements differently.
			if (target_element->GetOwnerDocument() == this)
			{
				// If it's a pane title, then we need to toggle the visibility of its sibling (the contents pane underneath it).
				if (target_element->GetTagName() == "h2")
				{
					Core::Element* panel = target_element->GetNextSibling();
					if (panel->IsVisible())
						panel->SetProperty("display", "none");
					else
						panel->SetProperty("display", "block");
					event.StopPropagation();
				}
				else if (event.GetTargetElement()->GetId() == "close_button")
				{
					if (IsVisible())
						SetProperty("visibility", "hidden");
				}
				// Check if the id is in the form "a %d" or "c %d" - these are the ancestor or child labels.
				else
				{
					int element_index;
					if (sscanf(target_element->GetId().CString(), "a %d", &element_index) == 1)
					{
						Core::Element* new_source_element = source_element;
						for (int i = 0; i < element_index; i++)
						{
							if (new_source_element != NULL)
								new_source_element = new_source_element->GetParentNode();
						}
						SetSourceElement(new_source_element);
					}
					else if (sscanf(target_element->GetId().CString(), "c %d", &element_index) == 1)
					{
						if (source_element != NULL)
							SetSourceElement(source_element->GetChild(element_index));
					}
					event.StopPropagation();
				}
			}
			// Otherwise we just want to focus on the clicked element (unless it's on a debug element)
			else if (target_element->GetOwnerDocument() != NULL && !IsDebuggerElement(target_element))
			{
				Core::Element* new_source_element = target_element;
				if (new_source_element != source_element)
				{
					SetSourceElement(new_source_element);
					event.StopPropagation();
				}
			}
		}
		else if (event == "mouseover")
		{
			Core::Element* target_element = event.GetTargetElement();

			// Deal with clicks on our own elements differently.
			Core::ElementDocument* owner_document = target_element->GetOwnerDocument();
			if (owner_document == this)
			{
				// Check if the id is in the form "a %d" or "c %d" - these are the ancestor or child labels.
				int element_index;
				if (sscanf(target_element->GetId().CString(), "a %d", &element_index) == 1)
				{
					hover_element = source_element;
					for (int i = 0; i < element_index; i++)
					{
						if (hover_element != NULL)
							hover_element = hover_element->GetParentNode();
					}
				}
				else if (sscanf(target_element->GetId().CString(), "c %d", &element_index) == 1)
				{
					if (source_element != NULL)
						hover_element = source_element->GetChild(element_index);
				}
			}
			// Otherwise we just want to focus on the clicked element (unless it's on a debug element)
			else if (owner_document != NULL && owner_document->GetId().Find("rkt-debug-") != 0)
			{
				hover_element = target_element;
			}
		}
	}
}