// BitmapSpriteEd - Bitmap Sprite Editor
// Copyright (C) 2005  Ian Cowburn
// 
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
// $Id$
//
using System;
using System.Collections;
using System.Drawing;
using System.Windows.Forms;

namespace BitmapSpriteEd
{
	/// <summary>
	/// Implements the Copy/Paste menu
	/// </summary>
	public class CopyMenu
	{
		public enum EMode
		{
			eNothing,
			eMark,
			ePaste,
			ePasteTransparent
		};
		
		public enum EGravity
		{
			eTopLeft,
			eTopRight,
			eBottomLeft,
			eBottomRight,
			eCentre
		};

		public CopyMenu()
		{
			m_mode=EMode.eNothing;
			m_grav=EGravity.eTopLeft;
			
			CreateMenus();
		}
		
		public bool AllowPaste
		{
			set
			{
				m_paste.Enabled=value;
				m_pasteTrans.Enabled=value;
			}
		}
		
		public EMode Mode
		{
			get {return m_mode;}
			set {m_mode=value;}
		}

		public EGravity Gravity
		{
			get {return m_grav;}
		}
		
		public void Show(Control c, int x, int y)
		{
			m_menu.Show(c, new Point(x,y));
		}


		// ------------------------------------------------
		// PRIVATE
		//
		private EMode		m_mode;
		private EGravity	m_grav;
		
		private Hashtable	m_modeMap;
		private Hashtable	m_gravMap;

		private ContextMenu	m_menu;
		private MenuItem	m_mark;
		private MenuItem	m_paste;
		private MenuItem	m_pasteTrans;
		private MenuItem	m_gravSub;
		private MenuItem	m_topLeft;
		private MenuItem	m_topRight;
		private MenuItem	m_bottomLeft;
		private MenuItem	m_bottomRight;
		private MenuItem	m_centre;

		private void CreateMenus()
		{
			m_menu=new ContextMenu();
			
			m_mark=new MenuItem("Mark and Copy", new EventHandler(OnMenu));
			m_paste=new MenuItem("Paste", new EventHandler(OnMenu));
			m_pasteTrans=new MenuItem("Paste Transparent", new EventHandler(OnMenu));
			
			m_gravSub=new MenuItem("Paste Gravity");
			
			m_topLeft=new MenuItem("Top Left",new EventHandler(OnGravity));
			m_topRight=new MenuItem("Top Right",new EventHandler(OnGravity));
			m_bottomLeft=new MenuItem("Bottom Left",new EventHandler(OnGravity));
			m_bottomRight=new MenuItem("Bottom Right",new EventHandler(OnGravity));
			m_centre=new MenuItem("Centre",new EventHandler(OnGravity));
			
			m_gravSub.MenuItems.Add(m_topLeft);
			m_gravSub.MenuItems.Add(m_topRight);
			m_gravSub.MenuItems.Add(m_bottomLeft);
			m_gravSub.MenuItems.Add(m_bottomRight);
			m_gravSub.MenuItems.Add(m_centre);
			
			m_topLeft.Checked=true;
			
			m_menu.MenuItems.Add(m_mark);
			m_menu.MenuItems.Add(m_gravSub);
			m_menu.MenuItems.Add(m_paste);
			m_menu.MenuItems.Add(m_pasteTrans);
			
			m_modeMap=new Hashtable();
			m_gravMap=new Hashtable();
			
			m_modeMap[m_mark]=EMode.eMark;
			m_modeMap[m_paste]=EMode.ePaste;
			m_modeMap[m_pasteTrans]=EMode.ePasteTransparent;
			
			m_gravMap[m_topLeft]=EGravity.eTopLeft;
			m_gravMap[m_topRight]=EGravity.eTopRight;
			m_gravMap[m_bottomLeft]=EGravity.eBottomLeft;
			m_gravMap[m_bottomRight]=EGravity.eBottomRight;
			m_gravMap[m_centre]=EGravity.eCentre;
		}
		
		private void OnMenu(object sender, System.EventArgs e)
		{
			m_mode=(EMode)m_modeMap[sender];
		}
		
		private void OnGravity(object sender, System.EventArgs e)
		{
			MenuItem i=(MenuItem)sender;
			
			m_grav=(EGravity)m_gravMap[sender];
			
			foreach (MenuItem m in m_gravSub.MenuItems)
			{
				m.Checked=false;
			}
			
			i.Checked=true;
		}
	}
}