UltimateZoneBuilder/Source/General/General.cs

#region ================== Copyright (c) 2007 Pascal vd Heiden

/*
 * Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
 * This program is released under GNU General Public License
 * 
 * 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.
 * 
 */

#endregion

#region ================== Namespaces

using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Reflection;
using CodeImp.DoomBuilder.Interface;
using CodeImp.DoomBuilder.IO;
using CodeImp.DoomBuilder.Map;

#endregion

namespace CodeImp.DoomBuilder
{
	internal static class General
	{
		#region ================== Constants

		// Files and Folders
		private const string SETTINGS_CONFIG_FILE = "Builder.cfg";
		private const string GAME_CONFIGS_DIR = "Configurations";

		#endregion

		#region ================== Variables

		// Files and Folders
		private static string apppath;
		private static string temppath;
		private static string configspath;
		
		// Main objects
		private static MainForm mainwindow;
		private static Configuration settings;
		private static MapManager map;
		
		// Configurations
		private static List<ConfigurationInfo> configs;
		
		#endregion

		#region ================== Properties

		public static string AppPath { get { return apppath; } }
		public static string TempPath { get { return temppath; } }
		public static string ConfigsPath { get { return configspath; } }
		public static MainForm MainWindow { get { return mainwindow; } }
		public static Configuration Settings { get { return settings; } }
		public static List<ConfigurationInfo> Configs { get { return configs; } }
		public static MapManager Map { get { return map; } }
		
		#endregion

		#region ================== Configurations

		// This loads and returns a game configuration
		public static Configuration LoadGameConfiguration(string filename)
		{
			Configuration cfg;
			
			// Make the full filepathname
			string filepathname = Path.Combine(configspath, filename);
			
			// Load configuration
			try
			{
				// Try loading the configuration
				cfg = new Configuration(filepathname, true);

				// Check for erors
				if(cfg.ErrorResult != 0)
				{
					// Error in configuration
					MessageBox.Show(mainwindow, "Unable to load the game configuration file \"" + filename + "\".\n" +
						"Error near line " + cfg.ErrorLine + ": " + cfg.ErrorDescription,
						Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
					return null;
				}
				else
				{
					// Return config
					return cfg;
				}
			}
			catch(Exception)
			{
				// Unable to load configuration
				MessageBox.Show(mainwindow, "Unable to load the game configuration file \"" + filename + "\".",
					Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
				return null;
			}
		}

		// This finds all game configurations
		private static void FindGameConfigurations()
		{
			Configuration cfg;
			string[] filenames;
			string name, fullfilename;
			
			// Display status
			mainwindow.DisplayStatus("Loading game configurations...");

			// Make array
			configs = new List<ConfigurationInfo>();
			
			// Go for all files in the configurations directory
			filenames = Directory.GetFiles(configspath, "*.cfg", SearchOption.TopDirectoryOnly);
			foreach(string filepath in filenames)
			{
				// Check if it can be loaded
				cfg = LoadGameConfiguration(filepath);
				if(cfg != null)
				{
					// Get name and filename
					name = cfg.ReadSetting("game", "<unnamed game>");
					fullfilename = Path.GetFileName(filepath);
					
					// Add to lists
					configs.Add(new ConfigurationInfo(name, fullfilename));
				}
			}

			// Sort the configurations list
			configs.Sort();
		}
		
		#endregion

		#region ================== Startup

		// Main program entry
		public static void Main(string[] args)
		{
			// Find application path
			string dirpath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase);
			Uri localpath = new Uri(dirpath);
			apppath = Uri.UnescapeDataString(localpath.AbsolutePath);

			// Temporary directory
			temppath = Path.GetTempPath();

			// Configurations directory
			configspath = Path.Combine(apppath, GAME_CONFIGS_DIR);
			
			// Load configuration
			if(!File.Exists(Path.Combine(apppath, SETTINGS_CONFIG_FILE))) throw (new FileNotFoundException("Unable to find the program configuration \"" + SETTINGS_CONFIG_FILE + "\"."));
			settings = new Configuration(Path.Combine(apppath, SETTINGS_CONFIG_FILE), false);
			
			// Create main window
			mainwindow = new MainForm();
			
			// Show main window
			mainwindow.Show();
			mainwindow.Update();
			
			// Load game configurations
			FindGameConfigurations();
			
			// Run application from the main window
			mainwindow.DisplayReady();
			Application.Run(mainwindow);
		}
		
		#endregion
		
		#region ================== Terminate
		
		// This terminates the program
		public static void Terminate()
		{
			// Clean up
			mainwindow.Dispose();

			// Save settings configuration
			settings.SaveConfiguration(Path.Combine(apppath, SETTINGS_CONFIG_FILE));

			// Application ends here and now
			Application.Exit();
		}
		
		#endregion
		
		#region ================== Management

		// This creates a new map
		public static bool NewMap()
		{
			MapOptions newoptions;
			MapOptionsForm optionswindow;
			DialogResult result;
			
			// Empty options
			newoptions = new MapOptions();

			// Open map options dialog
			optionswindow = new MapOptionsForm(newoptions);
			if(optionswindow.ShowDialog(mainwindow) == DialogResult.OK)
			{
				// Map open and not saved?
				if((map != null) && map.IsChanged)
				{
					// Ask to save changes
					result = MessageBox.Show(mainwindow, "Do you want to save changes to " + map.FileTitle + " (" + map.Options.CurrentName + ")?", Application.ProductName, MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
					if(result == DialogResult.Yes)
					{
						// TODO: Save map

					}
					else if(result == DialogResult.Cancel)
					{
						// Abort
						return false;
					}
				}

				// Display status
				mainwindow.DisplayStatus("Creating new map...");

				// Create map manager with these options
				map = new MapManager(newoptions);

				// Done
				mainwindow.DisplayReady();
				return true;
			}
			else
			{
				// Cancelled
				return false;
			}
		}

		#endregion
	}
}