96 lines
2.5 KiB
C#
96 lines
2.5 KiB
C#
/*
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KeePass Password Safe - The Open-Source Password Manager
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Copyright (C) 2003-2012 Dominik Reichl <dominik.reichl@t-online.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.Diagnostics;
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namespace KeePassLib.Utility
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{
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public static class GfxUtil
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{
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public static Image LoadImage(byte[] pb)
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{
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if(pb == null) throw new ArgumentNullException("pb");
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MemoryStream ms = new MemoryStream(pb, false);
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try { return LoadImagePriv(ms); }
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catch(Exception)
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{
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Image imgIco = TryLoadIco(pb);
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if(imgIco != null) return imgIco;
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throw;
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}
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finally { ms.Close(); }
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}
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private static Image LoadImagePriv(Stream s)
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{
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// Image.FromStream wants the stream to be open during
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// the whole lifetime of the image; as we can't guarantee
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// this, we make a copy of the image
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Image imgSrc = null;
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try
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{
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#if !KeePassLibSD
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imgSrc = Image.FromStream(s);
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Bitmap bmp = new Bitmap(imgSrc.Width, imgSrc.Height,
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PixelFormat.Format32bppArgb);
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try
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{
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bmp.SetResolution(imgSrc.HorizontalResolution,
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imgSrc.VerticalResolution);
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Debug.Assert(bmp.Size == imgSrc.Size);
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}
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catch(Exception) { Debug.Assert(false); }
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#else
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imgSrc = new Bitmap(s);
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Bitmap bmp = new Bitmap(imgSrc.Width, imgSrc.Height);
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#endif
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using(Graphics g = Graphics.FromImage(bmp))
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{
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g.Clear(Color.Transparent);
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g.DrawImage(imgSrc, 0, 0);
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}
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return bmp;
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}
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finally { if(imgSrc != null) imgSrc.Dispose(); }
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}
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private static Image TryLoadIco(byte[] pb)
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{
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#if !KeePassLibSD
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MemoryStream ms = new MemoryStream(pb, false);
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try { return (new Icon(ms)).ToBitmap(); }
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catch(Exception) { }
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finally { ms.Close(); }
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#endif
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return null;
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}
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}
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}
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