Setup solution

ModernKeePassLib/PwCustomIcon.cs

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+/*
+  KeePass Password Safe - The Open-Source Password Manager
+  Copyright (C) 2003-2019 Dominik Reichl <dominik.reichl@t-online.de>
+
+  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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+#if !ModernKeePassLib
+using System.Drawing;
+#else
+using Windows.UI.Xaml.Controls;
+#endif
+
+using ModernKeePassLib.Utility;
+
+namespace ModernKeePassLib
+{
+	/// <summary>
+	/// Custom icon. <c>PwCustomIcon</c> objects are immutable.
+	/// </summary>
+	public sealed class PwCustomIcon
+	{
+		private readonly PwUuid m_pwUuid;
+		private readonly byte[] m_pbImageDataPng;
+
+		private readonly Image m_imgOrg;
+		private Dictionary<long, Image> m_dImageCache = new Dictionary<long, Image>();
+
+		// Recommended maximum sizes, not obligatory
+		internal const int MaxWidth = 128;
+		internal const int MaxHeight = 128;
+
+		public PwUuid Uuid
+		{
+			get { return m_pwUuid; }
+		}
+
+		public byte[] ImageDataPng
+		{
+			get { return m_pbImageDataPng; }
+		}
+
+		[Obsolete("Use GetImage instead.")]
+		public Image Image
+		{
+#if (!KeePassLibSD && !KeePassUAP)
+			get { return GetImage(16, 16); } // Backward compatibility
+#else
+			get { return GetImage(); } // Backward compatibility
+#endif
+		}
+
+		public PwCustomIcon(PwUuid pwUuid, byte[] pbImageDataPng)
+		{
+			Debug.Assert(pwUuid != null);
+			if(pwUuid == null) throw new ArgumentNullException("pwUuid");
+			Debug.Assert(!pwUuid.Equals(PwUuid.Zero));
+			if(pwUuid.Equals(PwUuid.Zero)) throw new ArgumentException("pwUuid == 0.");
+			Debug.Assert(pbImageDataPng != null);
+			if(pbImageDataPng == null) throw new ArgumentNullException("pbImageDataPng");
+
+			m_pwUuid = pwUuid;
+			m_pbImageDataPng = pbImageDataPng;
+
+			// MemoryStream ms = new MemoryStream(m_pbImageDataPng, false);
+			// m_imgOrg = Image.FromStream(ms);
+			// ms.Close();
+			try { m_imgOrg = GfxUtil.LoadImage(m_pbImageDataPng); }
+			catch(Exception) { Debug.Assert(false); m_imgOrg = null; }
+
+			if(m_imgOrg != null)
+				m_dImageCache[GetID((int)m_imgOrg.Width, (int)m_imgOrg.Height)] =
+					m_imgOrg;
+		}
+
+		private static long GetID(int w, int h)
+		{
+			return (((long)w << 32) ^ (long)h);
+		}
+
+		/// <summary>
+		/// Get the icon as an <c>Image</c> (original size).
+		/// </summary>
+		public Image GetImage()
+		{
+			return m_imgOrg;
+		}
+
+#if (!KeePassLibSD && !KeePassUAP)
+		/// <summary>
+		/// Get the icon as an <c>Image</c> (with the specified size).
+		/// </summary>
+		/// <param name="w">Width of the returned image.</param>
+		/// <param name="h">Height of the returned image.</param>
+		public Image GetImage(int w, int h)
+		{
+			if(w < 0) { Debug.Assert(false); return m_imgOrg; }
+			if(h < 0) { Debug.Assert(false); return m_imgOrg; }
+			if(m_imgOrg == null) return null;
+
+			long lID = GetID(w, h);
+
+			Image img;
+			if(m_dImageCache.TryGetValue(lID, out img)) return img;
+
+			img = GfxUtil.ScaleImage(m_imgOrg, w, h, ScaleTransformFlags.UIIcon);
+			m_dImageCache[lID] = img;
+			return img;
+		}
+#endif
+	}
+}