/*
	GWEN
	Copyright (c) 2011 Facepunch Studios
	See license in Gwen.h
*/

#pragma once
#ifndef GWEN_CONTROLS_TREENODE_H
#define GWEN_CONTROLS_TREENODE_H

#include "Gwen/Controls/Base.h"
#include "Gwen/Controls/Button.h"
#include "Gwen/Controls/ScrollControl.h"

enum
{
	ITERATE_ACTION_OPEN = 1,
	ITERATE_ACTION_CLOSE,
	ITERATE_ACTION_FIND_SELECTED_INDEX,
	ITERATE_ACTION_DESELECT_INDEX,
	ITERATE_ACTION_SELECT,
};

namespace Gwen
{
namespace Controls
{
class TreeControl;

class GWEN_EXPORT TreeNode : public Base
{
public:
	GWEN_CONTROL(TreeNode, Base);

	virtual TreeNode* AddNode(const UnicodeString& strLabel);
	virtual TreeNode* AddNode(const String& strLabel);

	virtual void SetText(const UnicodeString& text);
	virtual void SetText(const String& text);
	UnicodeString GetText() const;

	virtual void Open();
	virtual void Close();

	virtual void ExpandAll();

	virtual Button* GetButton();

	virtual void Render(Skin::Base* skin);
	virtual void Layout(Skin::Base* skin);
	virtual void PostLayout(Skin::Base* skin);

	virtual void SetRoot(bool b) { m_bRoot = b; }
	virtual void SetTreeControl(TreeControl* pCtrl) { m_TreeControl = pCtrl; }

	virtual void SetSelectable(bool b) { m_bSelectable = b; }
	virtual bool IsSelected() { return m_bSelected; }
	virtual void SetSelected(bool b);

	virtual void DeselectAll();

	virtual void iterate(int action, int* curIndex, int* resultIndex);
	virtual bool OnKeyReturn(bool bDown)
	{
		static bool prevDown = false;
		if (!prevDown && bDown)
		{
			onReturnKeyDown.Call(this);
		}
		prevDown = bDown;
		return Base::OnKeyReturn(bDown);
	}

	Event::Caller onReturnKeyDown;

	Event::Caller onNamePress;
	Event::Caller onSelectChange;
	Event::Caller onSelect;
	Event::Caller onUnselect;

protected:
	void OnToggleButtonPress(Base* control);
	void OnDoubleClickName(Base* control);
	void OnClickName(Base* control);

	TreeControl* m_TreeControl;
	Button* m_ToggleButton;
	Button* m_Title;

	bool m_bRoot;
	bool m_bSelected;
	bool m_bSelectable;
	int m_bUpdateScrollBar;
};

}  // namespace Controls
}  // namespace Gwen
#endif