// GfxView - Simple GFX viewer
// 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.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Windows.Forms;

namespace GfxView
{
	/// <summary>
	/// Description of MainForm.
	/// </summary>
	public class MainForm : System.Windows.Forms.Form
	{
		private System.Windows.Forms.PictureBox m_gfx;
		private int m_height;
		private double m_size;
		private string m_file;
		
		public MainForm(string file)
		{
			//
			// The InitializeComponent() call is required for Windows Forms designer support.
			//
			InitializeComponent();
		
			m_file=file;
			m_gfx.Image=Bitmap.FromFile(file);
			
			m_height=m_gfx.Image.Height;
			
			m_size=1.0;
			
			while(m_size>0.1 && (Screen.PrimaryScreen.WorkingArea.Height < (m_height*m_size)))
			{
				m_size-=0.01;
			}
			
			SetSize();
		}
		
		[STAThread]
		public static void Main(string[] args)
		{
			string file=null;
			
			if (args.Length>0)
			{
				file=args[0];
			}
			else
			{
				OpenFileDialog fsel=new OpenFileDialog();
				
				if (fsel.ShowDialog()==DialogResult.OK)
				{
					file=fsel.FileName;
				}
			}

			if (file!=null)
			{
				try
				{
					Application.Run(new MainForm(file));
				}
				catch (Exception e)
				{
					MessageBox.Show(e.Message,"Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
				}
			}
		}
		
		#region Windows Forms Designer generated code
		/// <summary>
		/// This method is required for Windows Forms designer support.
		/// Do not change the method contents inside the source code editor. The Forms designer might
		/// not be able to load this method if it was changed manually.
		/// </summary>
		private void InitializeComponent() {
			this.m_gfx = new System.Windows.Forms.PictureBox();
			this.SuspendLayout();
			// 
			// m_gfx
			// 
			this.m_gfx.Dock = System.Windows.Forms.DockStyle.Fill;
			this.m_gfx.Location = new System.Drawing.Point(0, 0);
			this.m_gfx.Name = "m_gfx";
			this.m_gfx.Size = new System.Drawing.Size(292, 266);
			this.m_gfx.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
			this.m_gfx.TabIndex = 0;
			this.m_gfx.TabStop = false;
			// 
			// MainForm
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(292, 266);
			this.Controls.Add(this.m_gfx);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;
			this.Name = "MainForm";
			this.Text = "MainForm";
			this.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.OnKey);
			this.ResumeLayout(false);
		}
		#endregion
		
		private void SetSize()
		{
			Width=(int)(m_gfx.Image.Width*m_size);
			Height=(int)(m_gfx.Image.Height*m_size);
			
			Text=m_file + " [" + (m_size*100).ToString() + "%]";
		}

		void OnKey(object sender, System.Windows.Forms.KeyPressEventArgs e)
		{
			switch(Char.ToLower(e.KeyChar))
			{
				case 'q':
					Close();
					break;
					
				case '+':
					m_size+=0.1;
					SetSize();
					break;
					
				case '-':
					m_size=Math.Max(0.01,m_size-0.1);
					SetSize();
					break;

				default:
					break;
			}
		}
		
	}
}