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https://github.com/Ryujinx/Opentk.git
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ea1765ec75
Modified INativeWindow implementations to not qualify Icon class fully, so we can change the implementation between System.Drawing and OpenTK at will (using the EXPERIMENTAL #define).
936 lines
34 KiB
C#
936 lines
34 KiB
C#
#define NET_2_0
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//
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// Icon.cs
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//
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// Authors:
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// Dennis Hayes (dennish@Raytek.com)
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// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
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// Sanjay Gupta (gsanjay@novell.com)
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// Peter Dennis Bartok (pbartok@novell.com)
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// Sebastien Pouliot <sebastien@ximian.com>
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//
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// Copyright (C) 2002 Ximian, Inc. http://www.ximian.com
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// Copyright (C) 2004-2008 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Runtime.Serialization;
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using System.Runtime.InteropServices;
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using System.Security.Permissions;
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using System.Reflection;
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namespace OpenTK
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{
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#if EXPERIMENTAL
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#if !NET_2_0
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[ComVisible(false)]
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#endif
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[Serializable]
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//[Editor("Design.IconEditor, " + Consts.AssemblySystem_Drawing_Design, typeof(Design.UITypeEditor))]
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[TypeConverter(typeof(IconConverter))]
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public sealed class Icon : MarshalByRefObject, ISerializable, ICloneable, IDisposable
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{
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[StructLayout(LayoutKind.Sequential)]
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internal struct IconDirEntry
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{
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internal byte width;
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// Width of icon
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internal byte height;
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// Height of icon
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internal byte colorCount;
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// colors in icon
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internal byte reserved;
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// Reserved
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internal ushort planes;
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// Color Planes
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internal ushort bitCount;
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// Bits per pixel
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internal uint bytesInRes;
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// bytes in resource
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internal uint imageOffset;
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// position in file
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}
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[StructLayout(LayoutKind.Sequential)]
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internal struct IconDir
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{
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internal ushort idReserved;
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// Reserved
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internal ushort idType;
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// resource type (1 for icons)
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internal ushort idCount;
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// how many images?
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internal IconDirEntry[] idEntries;
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// the entries for each image
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}
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[StructLayout(LayoutKind.Sequential)]
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internal struct BitmapInfoHeader
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{
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internal uint biSize;
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internal int biWidth;
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internal int biHeight;
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internal ushort biPlanes;
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internal ushort biBitCount;
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internal uint biCompression;
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internal uint biSizeImage;
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internal int biXPelsPerMeter;
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internal int biYPelsPerMeter;
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internal uint biClrUsed;
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internal uint biClrImportant;
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}
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[StructLayout(LayoutKind.Sequential)]
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internal struct IconImage
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{
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internal BitmapInfoHeader iconHeader;
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//image header
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internal uint[] iconColors;
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//colors table
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internal byte[] iconXOR;
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// bits for XOR mask
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internal byte[] iconAND;
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//bits for AND mask
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}
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[StructLayout(LayoutKind.Sequential)]
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internal struct IconInfo
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{
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int fIcon;
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public int xHotspot;
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public int yHotspot;
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public IntPtr hbmMask;
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public IntPtr hbmColor;
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public bool IsIcon
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{
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get { return (fIcon == 1); }
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set { fIcon = (value) ? 1 : 0; }
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}
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}
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[DllImport("user32.dll", SetLastError=true)]
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static extern bool GetIconInfo(IntPtr hIcon, out IconInfo iconinfo);
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[DllImport("user32.dll", CallingConvention = CallingConvention.StdCall, SetLastError=true)]
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internal static extern IntPtr CreateIconIndirect([In] ref IconInfo piconinfo);
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[DllImport("user32.dll", CallingConvention = CallingConvention.StdCall, SetLastError=true)]
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internal static extern bool DestroyIcon(IntPtr hIcon);
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private Size iconSize;
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private IntPtr handle = IntPtr.Zero;
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private IconDir iconDir;
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private ushort id;
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private IconImage[] imageData;
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private bool undisposable;
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private bool disposed;
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private Bitmap bitmap;
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private Icon()
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{
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}
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private Icon(IntPtr handle)
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{
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this.handle = handle;
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if (Configuration.RunningOnUnix)
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{
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bitmap = Bitmap.FromHicon(handle);
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iconSize = new Size(bitmap.Width, bitmap.Height);
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// FIXME: we need to convert the bitmap into an icon
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}
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else
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{
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IconInfo ii;
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GetIconInfo(handle, out ii);
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if (!ii.IsIcon)
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throw new NotImplementedException("Handle doesn't represent an ICON.");
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// If this structure defines an icon, the hot spot is always in the center of the icon
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iconSize = new Size(ii.xHotspot * 2, ii.yHotspot * 2);
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bitmap = (Bitmap)Image.FromHbitmap(ii.hbmColor);
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}
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undisposable = true;
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}
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public Icon(Icon original, int width, int height) : this(original, new Size(width, height))
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{
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}
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public Icon(Icon original, Size size)
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{
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if (original == null)
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throw new ArgumentException("original");
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iconSize = size;
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iconDir = original.iconDir;
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int count = iconDir.idCount;
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if (count > 0)
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{
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imageData = original.imageData;
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id = UInt16.MaxValue;
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for (ushort i = 0; i < count; i++)
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{
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IconDirEntry ide = iconDir.idEntries[i];
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if ((ide.height == size.Height) || (ide.width == size.Width))
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{
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id = i;
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break;
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}
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}
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// if a perfect match isn't found we look for the biggest icon *smaller* than specified
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if (id == UInt16.MaxValue)
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{
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int requested = Math.Min(size.Height, size.Width);
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IconDirEntry best = iconDir.idEntries[0];
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for (ushort i = 1; i < count; i++)
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{
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IconDirEntry ide = iconDir.idEntries[i];
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if ((ide.height < requested) || (ide.width < requested))
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{
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if ((ide.height > best.height) || (ide.width > best.width))
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id = i;
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}
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}
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}
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// last one, if nothing better can be found
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if (id == UInt16.MaxValue)
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id = (ushort)(count - 1);
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iconSize.Height = iconDir.idEntries[id].height;
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iconSize.Width = iconDir.idEntries[id].width;
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} else
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{
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iconSize.Height = size.Height;
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iconSize.Width = size.Width;
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}
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if (original.bitmap != null)
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bitmap = (Bitmap)original.bitmap.Clone();
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}
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public Icon(Stream stream) : this(stream, 32, 32)
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{
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}
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public Icon(Stream stream, int width, int height)
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{
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InitFromStreamWithSize(stream, width, height);
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}
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public Icon(string fileName)
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{
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using (FileStream fs = File.OpenRead(fileName))
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{
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InitFromStreamWithSize(fs, 32, 32);
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}
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}
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public Icon(Type type, string resource)
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{
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if (resource == null)
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throw new ArgumentException("resource");
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using (Stream s = type.Assembly.GetManifestResourceStream(type, resource))
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{
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if (s == null)
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{
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string msg = String.Format("Resource '{0}' was not found.", resource);
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throw new FileNotFoundException(msg);
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}
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InitFromStreamWithSize(s, 32, 32);
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// 32x32 is default
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}
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}
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private Icon(SerializationInfo info, StreamingContext context)
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{
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MemoryStream dataStream = null;
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int width = 0;
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int height = 0;
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foreach (SerializationEntry serEnum in info)
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{
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if (String.Compare(serEnum.Name, "IconData", true) == 0)
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{
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dataStream = new MemoryStream((byte[])serEnum.Value);
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}
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if (String.Compare(serEnum.Name, "IconSize", true) == 0)
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{
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Size iconSize = (Size)serEnum.Value;
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width = iconSize.Width;
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height = iconSize.Height;
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}
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}
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if ((dataStream != null) && (width == height))
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{
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dataStream.Seek(0, SeekOrigin.Begin);
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InitFromStreamWithSize(dataStream, width, height);
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}
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}
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internal Icon(string resourceName, bool undisposable)
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{
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using (Stream s = typeof(Icon).Assembly.GetManifestResourceStream(resourceName))
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{
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if (s == null)
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{
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string msg = String.Format("Resource '{0}' was not found.", resourceName);
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throw new FileNotFoundException(msg);
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}
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InitFromStreamWithSize(s, 32, 32);
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// 32x32 is default
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}
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this.undisposable = true;
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}
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void ISerializable.GetObjectData(SerializationInfo si, StreamingContext context)
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{
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MemoryStream ms = new MemoryStream();
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Save(ms);
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si.AddValue("IconSize", this.Size, typeof(Size));
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si.AddValue("IconData", ms.ToArray());
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}
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#if NET_2_0
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public Icon(Stream stream, Size size) : this(stream, size.Width, size.Height)
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{
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}
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public Icon(string fileName, int width, int height)
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{
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using (FileStream fs = File.OpenRead(fileName))
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{
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InitFromStreamWithSize(fs, width, height);
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}
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}
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public Icon(string fileName, Size size)
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{
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using (FileStream fs = File.OpenRead(fileName))
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{
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InitFromStreamWithSize(fs, size.Width, size.Height);
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}
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}
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/*
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[MonoLimitation("The same icon, SystemIcons.WinLogo, is returned for all file types.")]
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public static Icon ExtractAssociatedIcon(string filePath)
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{
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if (String.IsNullOrEmpty(filePath))
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throw new ArgumentException(Locale.GetText("Null or empty path."), "filePath");
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if (!File.Exists(filePath))
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throw new FileNotFoundException(Locale.GetText("Couldn't find specified file."), filePath);
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return SystemIcons.WinLogo;
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}
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*/
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#endif
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public void Dispose()
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{
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// SystemIcons requires this
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if (undisposable)
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return;
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if (!disposed)
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{
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if (Configuration.RunningOnWindows && (handle != IntPtr.Zero))
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{
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DestroyIcon(handle);
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handle = IntPtr.Zero;
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}
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if (bitmap != null)
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{
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bitmap.Dispose();
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bitmap = null;
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}
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GC.SuppressFinalize(this);
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}
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disposed = true;
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}
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public object Clone()
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{
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return new Icon(this, Size);
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}
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[SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)]
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public static Icon FromHandle(IntPtr handle)
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{
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if (handle == IntPtr.Zero)
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throw new ArgumentException("handle");
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return new Icon(handle);
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}
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private void SaveIconImage(BinaryWriter writer, IconImage ii)
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{
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BitmapInfoHeader bih = ii.iconHeader;
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writer.Write(bih.biSize);
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writer.Write(bih.biWidth);
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writer.Write(bih.biHeight);
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writer.Write(bih.biPlanes);
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writer.Write(bih.biBitCount);
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writer.Write(bih.biCompression);
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writer.Write(bih.biSizeImage);
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writer.Write(bih.biXPelsPerMeter);
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writer.Write(bih.biYPelsPerMeter);
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writer.Write(bih.biClrUsed);
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writer.Write(bih.biClrImportant);
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//now write color table
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int colCount = ii.iconColors.Length;
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for (int j = 0; j < colCount; j++)
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writer.Write(ii.iconColors[j]);
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//now write XOR Mask
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writer.Write(ii.iconXOR);
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//now write AND Mask
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writer.Write(ii.iconAND);
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}
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private void SaveIconDirEntry(BinaryWriter writer, IconDirEntry ide, uint offset)
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{
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writer.Write(ide.width);
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writer.Write(ide.height);
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writer.Write(ide.colorCount);
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writer.Write(ide.reserved);
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writer.Write(ide.planes);
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writer.Write(ide.bitCount);
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writer.Write(ide.bytesInRes);
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writer.Write((offset == UInt32.MaxValue) ? ide.imageOffset : offset);
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}
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private void SaveAll(BinaryWriter writer)
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{
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writer.Write(iconDir.idReserved);
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writer.Write(iconDir.idType);
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ushort count = iconDir.idCount;
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writer.Write(count);
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for (int i = 0; i < (int)count; i++)
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{
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SaveIconDirEntry(writer, iconDir.idEntries[i], UInt32.MaxValue);
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}
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for (int i = 0; i < (int)count; i++)
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{
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SaveIconImage(writer, imageData[i]);
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}
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}
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private void SaveBestSingleIcon(BinaryWriter writer, int width, int height)
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{
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writer.Write(iconDir.idReserved);
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writer.Write(iconDir.idType);
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writer.Write((ushort)1);
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// find best entry and save it
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int best = 0;
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int bitCount = 0;
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for (int i = 0; i < iconDir.idCount; i++)
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{
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IconDirEntry ide = iconDir.idEntries[i];
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if ((width == ide.width) && (height == ide.height))
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{
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if (ide.bitCount >= bitCount)
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{
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bitCount = ide.bitCount;
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best = i;
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}
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}
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}
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SaveIconDirEntry(writer, iconDir.idEntries[best], 22);
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SaveIconImage(writer, imageData[best]);
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}
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private void SaveBitmapAsIcon(BinaryWriter writer)
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{
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writer.Write((ushort)0);
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// idReserved must be 0
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writer.Write((ushort)1);
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// idType must be 1
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writer.Write((ushort)1);
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// only one icon
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// when transformed into a bitmap only a single image exists
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IconDirEntry ide = new IconDirEntry();
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ide.width = (byte)bitmap.Width;
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ide.height = (byte)bitmap.Height;
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ide.colorCount = 0;
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// 32 bbp == 0, for palette size
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ide.reserved = 0;
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// always 0
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ide.planes = 0;
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ide.bitCount = 32;
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ide.imageOffset = 22;
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// 22 is the first icon position (for single icon files)
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BitmapInfoHeader bih = new BitmapInfoHeader();
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bih.biSize = (uint)Marshal.SizeOf(typeof(BitmapInfoHeader));
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bih.biWidth = bitmap.Width;
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bih.biHeight = 2 * bitmap.Height;
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// include both XOR and AND images
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bih.biPlanes = 1;
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bih.biBitCount = 32;
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bih.biCompression = 0;
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bih.biSizeImage = 0;
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bih.biXPelsPerMeter = 0;
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bih.biYPelsPerMeter = 0;
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bih.biClrUsed = 0;
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bih.biClrImportant = 0;
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IconImage ii = new IconImage();
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ii.iconHeader = bih;
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ii.iconColors = new uint[0];
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// no palette
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int xor_size = (((bih.biBitCount * bitmap.Width + 31) & ~31) >> 3) * bitmap.Height;
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ii.iconXOR = new byte[xor_size];
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int p = 0;
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for (int y = bitmap.Height - 1; y >= 0; y--)
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{
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for (int x = 0; x < bitmap.Width; x++)
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{
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Color c = bitmap.GetPixel(x, y);
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ii.iconXOR[p++] = c.B;
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ii.iconXOR[p++] = c.G;
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ii.iconXOR[p++] = c.R;
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ii.iconXOR[p++] = c.A;
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}
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}
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int and_line_size = (((Width + 31) & ~31) >> 3);
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// must be a multiple of 4 bytes
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int and_size = and_line_size * bitmap.Height;
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ii.iconAND = new byte[and_size];
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ide.bytesInRes = (uint)(bih.biSize + xor_size + and_size);
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SaveIconDirEntry(writer, ide, UInt32.MaxValue);
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SaveIconImage(writer, ii);
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}
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private void Save(Stream outputStream, int width, int height)
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{
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BinaryWriter writer = new BinaryWriter(outputStream);
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// if we have the icon information then save from this
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if (iconDir.idEntries != null)
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{
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if ((width == -1) && (height == -1))
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SaveAll(writer);
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else
|
|
SaveBestSingleIcon(writer, width, height);
|
|
} else if (bitmap != null)
|
|
{
|
|
// if the icon was created from a bitmap then convert it
|
|
SaveBitmapAsIcon(writer);
|
|
}
|
|
writer.Flush();
|
|
}
|
|
|
|
public void Save(Stream outputStream)
|
|
{
|
|
if (outputStream == null)
|
|
throw new NullReferenceException("outputStream");
|
|
|
|
// save every icons available
|
|
Save(outputStream, -1, -1);
|
|
}
|
|
|
|
internal Bitmap BuildBitmapOnWin32()
|
|
{
|
|
Bitmap bmp;
|
|
|
|
if (imageData == null)
|
|
return new Bitmap(32, 32);
|
|
|
|
IconImage ii = imageData[id];
|
|
BitmapInfoHeader bih = ii.iconHeader;
|
|
int biHeight = bih.biHeight / 2;
|
|
|
|
int ncolors = (int)bih.biClrUsed;
|
|
if ((ncolors == 0) && (bih.biBitCount < 24))
|
|
ncolors = (int)(1 << bih.biBitCount);
|
|
|
|
switch (bih.biBitCount) {
|
|
case 1:
|
|
bmp = new Bitmap(bih.biWidth, biHeight, PixelFormat.Format1bppIndexed);
|
|
break;
|
|
case 4:
|
|
bmp = new Bitmap(bih.biWidth, biHeight, PixelFormat.Format4bppIndexed);
|
|
break;
|
|
case 8:
|
|
bmp = new Bitmap(bih.biWidth, biHeight, PixelFormat.Format8bppIndexed);
|
|
break;
|
|
case 24:
|
|
bmp = new Bitmap(bih.biWidth, biHeight, PixelFormat.Format24bppRgb);
|
|
break;
|
|
case 32:
|
|
bmp = new Bitmap(bih.biWidth, biHeight, PixelFormat.Format32bppArgb);
|
|
break;
|
|
default:
|
|
string msg = String.Format("Unexpected number of bits: {0}", bih.biBitCount);
|
|
throw new Exception(msg);
|
|
}
|
|
|
|
if (bih.biBitCount < 24)
|
|
{
|
|
ColorPalette pal = bmp.Palette;
|
|
// Managed palette
|
|
for (int i = 0; i < ii.iconColors.Length; i++)
|
|
{
|
|
pal.Entries[i] = Color.FromArgb((int)ii.iconColors[i] | unchecked((int)0xff000000u));
|
|
}
|
|
bmp.Palette = pal;
|
|
}
|
|
|
|
int bytesPerLine = (int)((((bih.biWidth * bih.biBitCount) + 31) & ~31) >> 3);
|
|
BitmapData bits = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.WriteOnly, bmp.PixelFormat);
|
|
|
|
for (int y = 0; y < biHeight; y++)
|
|
{
|
|
Marshal.Copy(ii.iconXOR, bytesPerLine * y, (IntPtr)(bits.Scan0.ToInt64() + bits.Stride * (biHeight - 1 - y)), bytesPerLine);
|
|
}
|
|
|
|
bmp.UnlockBits(bits);
|
|
|
|
bmp = new Bitmap(bmp);
|
|
// This makes a 32bpp image out of an indexed one
|
|
// Apply the mask to make properly transparent
|
|
bytesPerLine = (int)((((bih.biWidth) + 31) & ~31) >> 3);
|
|
for (int y = 0; y < biHeight; y++)
|
|
{
|
|
for (int x = 0; x < bih.biWidth / 8; x++)
|
|
{
|
|
for (int bit = 7; bit >= 0; bit--)
|
|
{
|
|
if (((ii.iconAND[y * bytesPerLine + x] >> bit) & 1) != 0)
|
|
{
|
|
bmp.SetPixel(x * 8 + 7 - bit, biHeight - y - 1, Color.Transparent);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return bmp;
|
|
}
|
|
|
|
internal Bitmap GetInternalBitmap()
|
|
{
|
|
if (bitmap == null)
|
|
{
|
|
if (Configuration.RunningOnUnix)
|
|
{
|
|
// Mono's libgdiplus doesn't require to keep the stream alive when loading images
|
|
using (MemoryStream ms = new MemoryStream())
|
|
{
|
|
// save the current icon
|
|
Save(ms, Width, Height);
|
|
ms.Position = 0;
|
|
|
|
// libgdiplus can now decode icons
|
|
//bitmap = (Bitmap)Image.LoadFromStream(ms, false);
|
|
bitmap = (Bitmap)Image.FromStream(ms);
|
|
}
|
|
} else
|
|
{
|
|
// MS GDI+ ICO codec is more limited than the MS Icon class
|
|
// so we can't, reliably, get bitmap using it. We need to do this the "slow" way
|
|
bitmap = BuildBitmapOnWin32();
|
|
}
|
|
}
|
|
|
|
return bitmap;
|
|
}
|
|
|
|
// note: all bitmaps are 32bits ARGB - no matter what the icon format (bitcount) was
|
|
public Bitmap ToBitmap()
|
|
{
|
|
if (disposed)
|
|
throw new ObjectDisposedException(GetType().Name);
|
|
|
|
// note: we can't return the original image because
|
|
// (a) we have no control over the bitmap instance we return (i.e. it could be disposed)
|
|
// (b) the palette, flags won't match MS results. See MonoTests.Imaging.IconCodecTest.
|
|
// Image16 for the differences
|
|
return new Bitmap(GetInternalBitmap());
|
|
}
|
|
|
|
public override string ToString()
|
|
{
|
|
//is this correct, this is what returned by .Net
|
|
return "<Icon>";
|
|
}
|
|
|
|
[Browsable(false)]
|
|
public IntPtr Handle
|
|
{
|
|
get
|
|
{
|
|
// note: this handle doesn't survive the lifespan of the icon instance
|
|
if (!disposed && (handle == IntPtr.Zero))
|
|
{
|
|
if (Configuration.RunningOnUnix)
|
|
{
|
|
// Hack: access Mono internals to retrieve the NativeObject handle.
|
|
// handle = GetInternalBitmap().NativeObject;
|
|
Bitmap bmp = GetInternalBitmap();
|
|
FieldInfo field = bmp.GetType().GetField("NativeObject",
|
|
BindingFlags.Instance | BindingFlags.NonPublic);
|
|
if (field == null)
|
|
throw new NotSupportedException("Internal OpenTK error. Please report this error at http://www.opentk.com/node/add/project-issue, attaching the stacktrace of the exception.");
|
|
handle = (IntPtr)field.GetValue(bmp);
|
|
}
|
|
else
|
|
{
|
|
// remember that this block executes only with MS GDI+
|
|
IconInfo ii = new IconInfo();
|
|
ii.IsIcon = true;
|
|
ii.hbmColor = ToBitmap().GetHbitmap();
|
|
ii.hbmMask = ii.hbmColor;
|
|
handle = CreateIconIndirect(ref ii);
|
|
}
|
|
}
|
|
return handle;
|
|
}
|
|
}
|
|
|
|
[Browsable(false)]
|
|
public int Height
|
|
{
|
|
get { return iconSize.Height; }
|
|
}
|
|
|
|
public Size Size
|
|
{
|
|
get { return iconSize; }
|
|
}
|
|
|
|
[Browsable(false)]
|
|
public int Width
|
|
{
|
|
get { return iconSize.Width; }
|
|
}
|
|
|
|
~Icon()
|
|
{
|
|
Dispose();
|
|
}
|
|
|
|
private void InitFromStreamWithSize(Stream stream, int width, int height)
|
|
{
|
|
//read the icon header
|
|
if (stream == null || stream.Length == 0)
|
|
throw new System.ArgumentException("The argument 'stream' must be a picture that can be used as a Icon", "stream");
|
|
|
|
BinaryReader reader = new BinaryReader(stream);
|
|
|
|
//iconDir = new IconDir ();
|
|
iconDir.idReserved = reader.ReadUInt16();
|
|
if (iconDir.idReserved != 0)
|
|
//must be 0
|
|
throw new System.ArgumentException("Invalid Argument", "stream");
|
|
|
|
iconDir.idType = reader.ReadUInt16();
|
|
if (iconDir.idType != 1)
|
|
//must be 1
|
|
throw new System.ArgumentException("Invalid Argument", "stream");
|
|
|
|
ushort dirEntryCount = reader.ReadUInt16();
|
|
ArrayList entries = new ArrayList(dirEntryCount);
|
|
bool sizeObtained = false;
|
|
// now read in the IconDirEntry structures
|
|
for (int i = 0; i < dirEntryCount; i++)
|
|
{
|
|
IconDirEntry ide;
|
|
ide.width = reader.ReadByte();
|
|
ide.height = reader.ReadByte();
|
|
ide.colorCount = reader.ReadByte();
|
|
ide.reserved = reader.ReadByte();
|
|
ide.planes = reader.ReadUInt16();
|
|
ide.bitCount = reader.ReadUInt16();
|
|
ide.bytesInRes = reader.ReadUInt32();
|
|
ide.imageOffset = reader.ReadUInt32();
|
|
#if false
|
|
Console.WriteLine("Entry: {0}", i);
|
|
Console.WriteLine("\tide.width: {0}", ide.width);
|
|
Console.WriteLine("\tide.height: {0}", ide.height);
|
|
Console.WriteLine("\tide.colorCount: {0}", ide.colorCount);
|
|
Console.WriteLine("\tide.reserved: {0}", ide.reserved);
|
|
Console.WriteLine("\tide.planes: {0}", ide.planes);
|
|
Console.WriteLine("\tide.bitCount: {0}", ide.bitCount);
|
|
Console.WriteLine("\tide.bytesInRes: {0}", ide.bytesInRes);
|
|
Console.WriteLine("\tide.imageOffset: {0}", ide.imageOffset);
|
|
#endif
|
|
|
|
// 256x256 icons are decoded as 0x0 (width and height are encoded as BYTE)
|
|
// and we ignore them just like MS does (at least up to fx 2.0)
|
|
if ((ide.width == 0) && (ide.height == 0))
|
|
continue;
|
|
|
|
int index = entries.Add(ide);
|
|
|
|
//is this is the best fit??
|
|
if (!sizeObtained)
|
|
{
|
|
if ((ide.height == height) || (ide.width == width))
|
|
{
|
|
this.id = (ushort)index;
|
|
sizeObtained = true;
|
|
this.iconSize.Height = ide.height;
|
|
this.iconSize.Width = ide.width;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Vista 256x256 icons points directly to a PNG bitmap
|
|
dirEntryCount = (ushort)entries.Count;
|
|
if (dirEntryCount == 0)
|
|
throw new Win32Exception(0, "No valid icon entry were found.");
|
|
|
|
iconDir.idCount = dirEntryCount;
|
|
imageData = new IconImage[dirEntryCount];
|
|
iconDir.idEntries = new IconDirEntry[dirEntryCount];
|
|
entries.CopyTo(iconDir.idEntries);
|
|
|
|
//if we havent found the best match, return the one with the
|
|
//largest size. Is this approach correct??
|
|
if (!sizeObtained)
|
|
{
|
|
uint largestSize = 0;
|
|
for (int j = 0; j < dirEntryCount; j++)
|
|
{
|
|
if (iconDir.idEntries[j].bytesInRes >= largestSize)
|
|
{
|
|
largestSize = iconDir.idEntries[j].bytesInRes;
|
|
this.id = (ushort)j;
|
|
this.iconSize.Height = iconDir.idEntries[j].height;
|
|
this.iconSize.Width = iconDir.idEntries[j].width;
|
|
}
|
|
}
|
|
}
|
|
|
|
//now read in the icon data
|
|
for (int j = 0; j < dirEntryCount; j++)
|
|
{
|
|
IconImage iidata = new IconImage();
|
|
BitmapInfoHeader bih = new BitmapInfoHeader();
|
|
stream.Seek(iconDir.idEntries[j].imageOffset, SeekOrigin.Begin);
|
|
byte[] buffer = new byte[iconDir.idEntries[j].bytesInRes];
|
|
stream.Read(buffer, 0, buffer.Length);
|
|
BinaryReader bihReader = new BinaryReader(new MemoryStream(buffer));
|
|
bih.biSize = bihReader.ReadUInt32();
|
|
bih.biWidth = bihReader.ReadInt32();
|
|
bih.biHeight = bihReader.ReadInt32();
|
|
bih.biPlanes = bihReader.ReadUInt16();
|
|
bih.biBitCount = bihReader.ReadUInt16();
|
|
bih.biCompression = bihReader.ReadUInt32();
|
|
bih.biSizeImage = bihReader.ReadUInt32();
|
|
bih.biXPelsPerMeter = bihReader.ReadInt32();
|
|
bih.biYPelsPerMeter = bihReader.ReadInt32();
|
|
bih.biClrUsed = bihReader.ReadUInt32();
|
|
bih.biClrImportant = bihReader.ReadUInt32();
|
|
#if false
|
|
Console.WriteLine("Entry: {0}", j);
|
|
Console.WriteLine("\tbih.biSize: {0}", bih.biSize);
|
|
Console.WriteLine("\tbih.biWidth: {0}", bih.biWidth);
|
|
Console.WriteLine("\tbih.biHeight: {0}", bih.biHeight);
|
|
Console.WriteLine("\tbih.biPlanes: {0}", bih.biPlanes);
|
|
Console.WriteLine("\tbih.biBitCount: {0}", bih.biBitCount);
|
|
Console.WriteLine("\tbih.biCompression: {0}", bih.biCompression);
|
|
Console.WriteLine("\tbih.biSizeImage: {0}", bih.biSizeImage);
|
|
Console.WriteLine("\tbih.biXPelsPerMeter: {0}", bih.biXPelsPerMeter);
|
|
Console.WriteLine("\tbih.biYPelsPerMeter: {0}", bih.biYPelsPerMeter);
|
|
Console.WriteLine("\tbih.biClrUsed: {0}", bih.biClrUsed);
|
|
Console.WriteLine("\tbih.biClrImportant: {0}", bih.biClrImportant);
|
|
#endif
|
|
iidata.iconHeader = bih;
|
|
//Read the number of colors used and corresponding memory occupied by
|
|
//color table. Fill this memory chunk into rgbquad[]
|
|
int numColors;
|
|
switch (bih.biBitCount) {
|
|
case 1:
|
|
numColors = 2;
|
|
break;
|
|
case 4:
|
|
numColors = 16;
|
|
break;
|
|
case 8:
|
|
numColors = 256;
|
|
break;
|
|
default:
|
|
numColors = 0;
|
|
break;
|
|
}
|
|
|
|
iidata.iconColors = new uint[numColors];
|
|
for (int i = 0; i < numColors; i++)
|
|
iidata.iconColors[i] = bihReader.ReadUInt32();
|
|
|
|
//XOR mask is immediately after ColorTable and its size is
|
|
//icon height* no. of bytes per line
|
|
|
|
//icon height is half of BITMAPINFOHEADER.biHeight, since it contains
|
|
//both XOR as well as AND mask bytes
|
|
int iconHeight = bih.biHeight / 2;
|
|
|
|
//bytes per line should should be uint aligned
|
|
int numBytesPerLine = ((((bih.biWidth * bih.biPlanes * bih.biBitCount) + 31) >> 5) << 2);
|
|
|
|
//Determine the XOR array Size
|
|
int xorSize = numBytesPerLine * iconHeight;
|
|
iidata.iconXOR = new byte[xorSize];
|
|
int nread = bihReader.Read(iidata.iconXOR, 0, xorSize);
|
|
if (nread != xorSize)
|
|
{
|
|
string msg = String.Format("{0} data length expected {1}, read {2}", "XOR", xorSize, nread);
|
|
throw new ArgumentException(msg, "stream");
|
|
}
|
|
|
|
//Determine the AND array size
|
|
numBytesPerLine = (int)((((bih.biWidth) + 31) & ~31) >> 3);
|
|
int andSize = numBytesPerLine * iconHeight;
|
|
iidata.iconAND = new byte[andSize];
|
|
nread = bihReader.Read(iidata.iconAND, 0, andSize);
|
|
if (nread != andSize)
|
|
{
|
|
string msg = String.Format("{0} data length expected {1}, read {2}", "AND", andSize, nread);
|
|
throw new ArgumentException(msg, "stream");
|
|
}
|
|
|
|
imageData[j] = iidata;
|
|
bihReader.Close();
|
|
}
|
|
|
|
reader.Close();
|
|
}
|
|
}
|
|
#endif
|
|
}
|