/* * Greenshot - a free and open source screenshot tool * Copyright (C) 2007-2010 Thomas Braun, Jens Klingen, Robin Krom * * For more information see: http://getgreenshot.org/ * The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/ * * 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 1 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, see . */ using System; using System.Drawing; using System.IO; using System.Runtime.Serialization; using System.Text.RegularExpressions; using System.Windows.Forms; using Greenshot.Configuration; using Greenshot.Drawing.Fields; using Greenshot.Helpers; namespace Greenshot.Drawing { /// /// Description of BitmapContainer. /// [Serializable()] public class HtmlContainer : DrawableContainer { private static log4net.ILog LOG = log4net.LogManager.GetLogger(typeof(HtmlContainer)); private const string SCRIPT_PATTERN = ""; private string html = null; private Bitmap bitmap = null; private Size lastSize = new Size(0,0); public HtmlContainer(Surface parent, string html) : this(parent) { Html = html; } public HtmlContainer(Surface parent) : base(parent) { Width = 100; Height = 100; } private void removeScripts() { Regex regExRemoveScript = new Regex(SCRIPT_PATTERN); html = regExRemoveScript.Replace(html, ""); } public string Html { set { html = value; removeScripts(); lastSize = new Size(0, 0); RedrawIfNeeded(); } get { return html; } } /** * Destructor */ ~HtmlContainer() { Dispose(false); } /** * The public accessible Dispose * Will call the GarbageCollector to SuppressFinalize, preventing being cleaned twice */ public new void Dispose() { Dispose(true); base.Dispose(); GC.SuppressFinalize(this); } // The bulk of the clean-up code is implemented in Dispose(bool) /** * This Dispose is called from the Dispose and the Destructor. * When disposing==true all non-managed resources should be freed too! */ protected virtual void Dispose(bool disposing) { if (disposing) { if (bitmap != null) { bitmap.Dispose(); } } bitmap = null; } protected void RedrawIfNeeded() { if (html == null) { if (bitmap != null) { bitmap.Dispose(); } bitmap = null; return; } if (bitmap == null || lastSize.Height != Height || lastSize.Width != Width) { bitmap = WebsiteImageGenerator.GetImageFromHTML(html); if (bitmap != null) { lastSize = new Size(bitmap.Width, bitmap.Height); } } } public override void Draw(Graphics g, RenderMode rm) { RedrawIfNeeded(); if (bitmap != null) { g.DrawImage(bitmap, Bounds); } } } }