htmlexporter.cs

这是一个小型的相片管理器

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.IO;
using System.Windows.Forms;
using VirtualPhotoOrganizer.Photo;
using System.Web;
using TXML;

namespace VirtualPhotoOrganizer.Util
{
	/// <summary>
	/// handles exporting photos to an html web album
	/// </summary>
	internal class HTMLExporter
	{
		// events
		public delegate void UpdateMax(int newMax, string message);
		public event UpdateMax MaxUpdate;
		public delegate void UpdateProgress(int progress);
		public event UpdateProgress ProgressUpdate;
		public delegate void Finish();
		public event Finish ProcessDone;

		// the list of photos we wish to export
		private Photos Photos;

		// do we also export the description?
		private bool ExpDesc;

		// the progress dialog
		private Dialogs.ProgressDialog Pd;

		// are we supposed to cancel?
		private bool Cancel;

		private string URL = "http://virtualphotoorg.sourceforge.net";

		// language strings
		private string LsCopy;
		private string LsThumb;
		private string LsHTML;
		private string LsPrev;
		private string LsNext;
		private string LsThumbs;
		private string LsVPO;
		private string LsDesc;
		private string LsOverwrite;
		private string LsResize;

		public HTMLExporter(Photos photos, bool exportDescription, string language) {
			Photos = (Photos) photos.Clone();
			ExpDesc = exportDescription;
			Cancel = false;
			LoadStrings(language);

			// create a new instance of the progressDialog
			Pd = new VirtualPhotoOrganizer.Dialogs.ProgressDialog(this);
		}

		private void LoadStrings(string language) {
			// get the strings for the ProgressDialog
			try {
				TXmlReader reader = XmlHandler.OpenLangFile();

				LsCopy = reader.GetString("Progress", "Copy", "Copying Photos...");
				LsThumb = reader.GetString("Progress", "Thumb", "Creating Thumbnails...");
				LsHTML = reader.GetString("Progress", "HTML", "Writing HTML files...");
				LsOverwrite = reader.GetString("Progress", "HTMLOverwrite", "The above file already exists in the destination path, do wish to overwrite it?");
				LsResize = reader.GetString("HTML", "Resize", "Resizing Photos...");

				reader.Close();
			}
			catch {
				LsCopy = "Copying Photos...";
				LsThumb = "Creating Thumbnails...";
				LsHTML = "Writing HTML files...";
				LsOverwrite = "The above file already exists in the destination path, do wish to overwrite it?";
				LsResize = "Resizing Photos...";
			}

			// get the strings for the HTML files
			try {
				// load strings from file
				TXmlReader reader = new TXmlReader(Application.StartupPath + "\\Lang\\" + language + ".xml");

				LsNext = reader.GetString("HTMLEXP", "Next", "Next");
				LsPrev = reader.GetString("HTMLEXP", "Prev", "Previous");
				LsThumbs = reader.GetString("HTMLEXP", "Thumbs", "Thumbnails");
				LsVPO = reader.GetString("HTMLEXP", "VPO", "Created with Virtual Photo Organizer");
				LsDesc = reader.GetString("HTMLEXP", "Desc", "Description:");

				reader.Close();
			}
			catch {
				// use defaults
				LsPrev = "Previous";
				LsNext = "Next";
				LsThumbs = "Thumbnails";
				LsVPO = "Created with Virtual Photo Organizer";
				LsDesc = "Description:";
			}
		}

		/// <summary>
		/// initiates the export process (with copying)
		/// </summary>
		public void Export(string destPath, string mainAlbumName, Color bgColor, Color textColor) {
			Cancel = false;

			// show the dialog and hook into its cancel event
			Pd.CancelProcess += new VirtualPhotoOrganizer.Dialogs.ProgressDialog.Cancel(Pd_CancelProcess);
			Pd.Show();

			// create the dest directory if it doesn't exist
			if (!Directory.Exists(destPath))
				Directory.CreateDirectory(destPath);

			if (Cancel == false) {
				MaxUpdate(Photos.Count, LsCopy);
				CopyPhotos(destPath);
			}
			if (Cancel == false) {
				MaxUpdate(Photos.Count, LsThumb);
				CreateThumbs(destPath);
			}
			if (Cancel == false) {
				MaxUpdate(Photos.Count, LsHTML);
				WriteHTML(destPath, mainAlbumName, bgColor, textColor);
			}

			// close the dialog, hook out of its cancel event and reset Close
			Pd.CancelProcess -= new VirtualPhotoOrganizer.Dialogs.ProgressDialog.Cancel(Pd_CancelProcess);
			ProcessDone();
		}

		/// <summary>
		/// initiates the export process (with resizing)
		/// </summary>
		public void Export(string destPath, string mainAlbumName, Color bgColor, Color textColor, int width, int height, int quality, InterpolationMode intMode) {
			Cancel = false;

			// show the dialog and hook into its cancel event
			Pd.CancelProcess += new VirtualPhotoOrganizer.Dialogs.ProgressDialog.Cancel(Pd_CancelProcess);
			Pd.Show();

			// create the dest directory if it doesn't exist
			if (!Directory.Exists(destPath))
				Directory.CreateDirectory(destPath);

			if (Cancel == false) {
				MaxUpdate(Photos.Count, LsResize);
				Resize(destPath, width, height, quality, intMode);
			}
			if (Cancel == false) {
				MaxUpdate(Photos.Count, LsThumb);
				CreateThumbs(destPath);
			}
			if (Cancel == false) {
				MaxUpdate(Photos.Count, LsHTML);
				WriteHTML(destPath, mainAlbumName, bgColor, textColor);
			}

			// close the dialog, hook out of its cancel event and reset Close
			Pd.CancelProcess -= new VirtualPhotoOrganizer.Dialogs.ProgressDialog.Cancel(Pd_CancelProcess);
			ProcessDone();
		}

		/// <summary>
		/// initiates the export process (with diffQSave)
		/// </summary>
		public void Export(string destPath, string mainAlbumName, Color bgColor, Color textColor, int quality) {
			Cancel = false;

			// show the dialog and hook into its cancel event
			Pd.CancelProcess += new VirtualPhotoOrganizer.Dialogs.ProgressDialog.Cancel(Pd_CancelProcess);
			Pd.Show();

			// create the dest directory if it doesn't exist
			if (!Directory.Exists(destPath))
				Directory.CreateDirectory(destPath);

			if (Cancel == false) {
				MaxUpdate(Photos.Count, LsResize);
				DiffQSave(destPath, quality);
			}
			if (Cancel == false) {
				MaxUpdate(Photos.Count, LsThumb);
				CreateThumbs(destPath);
			}
			if (Cancel == false) {
				MaxUpdate(Photos.Count, LsHTML);
				WriteHTML(destPath, mainAlbumName, bgColor, textColor);
			}

			// close the dialog, hook out of its cancel event and reset Close
			Pd.CancelProcess -= new VirtualPhotoOrganizer.Dialogs.ProgressDialog.Cancel(Pd_CancelProcess);
			ProcessDone();
		}


		#region Copying

		private void CopyPhotos(string destPath) {
			// create the photos directory if it doesn't exist
			if (!Directory.Exists(destPath + "\\Img"))
				Directory.CreateDirectory(destPath + "\\Img");

			FileInfo fi;
			string dest;
			int i = 0;

			foreach (Photo.Photo p in Photos) {
				fi = new FileInfo(p.Path);
				dest = destPath + "\\Img\\" + fi.Name;

				// find out if the file exists and ask if the user wishes to overwrite
				if (File.Exists(dest)) {
					if (MessageBox.Show(LsOverwrite, fi.Name, MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation) == DialogResult.Yes)
						fi.CopyTo(dest, true);
				} else
					fi.CopyTo(dest);

				// update the photo's path and thumbs dir
				p.Path = dest;
				p.Thumbnail = destPath + "\\Thumbs\\th_" + fi.Name;

				Application.DoEvents();
				if (Cancel == true)
					return;

				// update the progress dialog
				ProgressUpdate(++i);
			}
		}

		#endregion

		#region Resizing