XP theme aware TreeView control which supports checkbox and radio button nodes.

#pragma once

#include "ThemeItem.h"
#include "IHasThemePartId.h"
#include "IRenderableItem.h"

using namespace System::Drawing;

namespace System
{ namespace Windows
{ namespace Forms 
{ namespace Themes
{
	//
	// A ThemePArtState is a discrete state that a part of window class can be in
	// and that may render differently than the default state
	//
	// Examples are normal, hot, disabled.
	__gc public __sealed class ThemePartState : public ThemeItem, public IRenderableItem
	{
	public private:
		ThemePartState( int propTableIndex, IHasThemePartId* parent );

	public:
		__property int get_StateId(){ return m_ID; }

		__property bool get_IsDefined();
		void DrawBackground( Graphics* graphics, System::Drawing::Rectangle Rect, System::Drawing::Rectangle ClipRect );
		void DrawBackground( Graphics* graphics, System::Drawing::Rectangle Rect );

		void DrawText( Graphics* graphics, String* Text, Int32 CharCount, DrawTextFlags TextFlags, bool Grayed, System::Drawing::Rectangle Rect );
		void DrawText( Graphics* graphics, String* Text, DrawTextFlags TextFlags, bool Grayed, System::Drawing::Rectangle Rect );

		System::Drawing::Size GetSize( Graphics* graphics, ThemeSize eSize );

		__property System::Drawing::Color get_TextColor();

	private:
		~ThemePartState(void);

		int m_ID;		// part and state id's are the 1 based index of the row that defines the state
						// i.e. for the record GROUPBOXSTATES, the record immediately following has an id of 1

		IHasThemePartId* m_Parent;
	};
}
}
}
}