//
// System.Drawing.Bitmap.cs
//
// Copyright (C) 2002 Ximian, Inc. http://www.ximian.com
// Copyright (C) 2004 Novell, Inc. http://www.novell.com
//
// Authors:
// Alexandre Pigolkine (pigolkine@gmx.de)
// Christian Meyer (Christian.Meyer@cs.tum.edu)
// Miguel de Icaza (miguel@ximian.com)
// Jordi Mas i Hernandez (jmas@softcatala.org)
// Ravindra (rkumar@novell.com)
//
//
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.IO;
using System.Drawing.Imaging;
using System.Runtime.Serialization;
using System.Runtime.InteropServices;
using System.ComponentModel;
using System.Security.Permissions;
namespace System.Drawing{
[Serializable]
[ComVisible (true)]
[Editor ("System.Drawing.Design.BitmapEditor, " + Consts.AssemblySystem_Drawing_Design, typeof (System.Drawing.Design.UITypeEditor))]
public sealed class Bitmap : Image
{
#region constructors
// constructors
#if NET_2_0
// required for XmlSerializer (#323246)
private Bitmap ()
{
}
#endif
internal Bitmap (IntPtr ptr)
{
nativeObject = ptr;
}
// Usually called when cloning images that need to have
// not only the handle saved, but also the underlying stream
// (when using MS GDI+ and IStream we must ensure the stream stays alive for all the life of the Image)
internal Bitmap(IntPtr ptr, Stream stream)
{
// under Win32 stream is owned by SD/GDI+ code
if (GDIPlus.RunningOnWindows ())
this.stream = stream;
nativeObject = ptr;
}
public Bitmap (int width, int height) : this (width, height, PixelFormat.Format32bppArgb)
{
}
public Bitmap (int width, int height, Graphics g)
{
if (g == null)
throw new ArgumentNullException ("g");
IntPtr bmp;
Status s = GDIPlus.GdipCreateBitmapFromGraphics (width, height, g.nativeObject, out bmp);
GDIPlus.CheckStatus (s);
nativeObject = bmp;
}
public Bitmap (int width, int height, PixelFormat format)
{
IntPtr bmp;
Status s = GDIPlus.GdipCreateBitmapFromScan0 (width, height, 0, format, IntPtr.Zero, out bmp);
GDIPlus.CheckStatus (s);
nativeObject = bmp;
}
public Bitmap (Image original) : this (original, original.Width, original.Height) {}
public Bitmap (Stream stream) : this (stream, false) {}
public Bitmap (string filename) : this (filename, false) {}
public Bitmap (Image original, Size newSize) : this(original, newSize.Width, newSize.Height) {}
public Bitmap (Stream stream, bool useIcm)
{
// false: stream is owned by user code
nativeObject = InitFromStream (stream);
}
public Bitmap (string filename, bool useIcm)
{
if (filename == null)
throw new ArgumentNullException ("filename");
IntPtr imagePtr;
Status st;
if (useIcm)
st = GDIPlus.GdipCreateBitmapFromFileICM (filename, out imagePtr);
else
st = GDIPlus.GdipCreateBitmapFromFile (filename, out imagePtr);
GDIPlus.CheckStatus (st);
nativeObject = imagePtr;
}
public Bitmap (Type type, string resource)
{
if (resource == null)
throw new ArgumentException ("resource");
Stream s = type.Assembly.GetManifestResourceStream (type, resource);
if (s == null) {
string msg = Locale.GetText ("Resource '{0}' was not found.", resource);
throw new FileNotFoundException (msg);
}
nativeObject = InitFromStream (s);
// under Win32 stream is owned by SD/GDI+ code
if (GDIPlus.RunningOnWindows ())
stream = s;
}
public Bitmap (Image original, int width, int height) : this(width, height, PixelFormat.Format32bppArgb)
{
Graphics graphics = Graphics.FromImage(this);
graphics.DrawImage(original, 0, 0, width, height);
graphics.Dispose();
}
public Bitmap (int width, int height, int stride, PixelFormat format, IntPtr scan0)
{
IntPtr bmp;
Status status = GDIPlus.GdipCreateBitmapFromScan0 (width, height, stride, format, scan0, out bmp);
GDIPlus.CheckStatus (status);
nativeObject = bmp;
}
private Bitmap (SerializationInfo info, StreamingContext context)
: base (info, context)
{
}
#endregion
// methods
public Color GetPixel (int x, int y) {
int argb;
Status s = GDIPlus.GdipBitmapGetPixel(nativeObject, x, y, out argb);
GDIPlus.CheckStatus (s);
return Color.FromArgb(argb);
}
public void SetPixel (int x, int y, Color color)
{
Status s = GDIPlus.GdipBitmapSetPixel (nativeObject, x, y, color.ToArgb ());
if (s == Status.InvalidParameter) {
// check is done in case of an error only to avoid another
// unmanaged call for normal (successful) calls
if ((this.PixelFormat & PixelFormat.Indexed) != 0) {
string msg = Locale.GetText ("SetPixel cannot be called on indexed bitmaps.");
#if NET_2_0
throw new InvalidOperationException (msg);
#else
throw new Exception (msg);
#endif
}
}
GDIPlus.CheckStatus (s);
}
public Bitmap Clone (Rectangle rect, PixelFormat format)
{
IntPtr bmp;
Status status = GDIPlus.GdipCloneBitmapAreaI (rect.X, rect.Y, rect.Width, rect.Height,
format, nativeObject, out bmp);
GDIPlus.CheckStatus (status);
return new Bitmap (bmp);
}
public Bitmap Clone (RectangleF rect, PixelFormat format)
{
IntPtr bmp;
Status status = GDIPlus.GdipCloneBitmapArea (rect.X, rect.Y, rect.Width, rect.Height,
format, nativeObject, out bmp);
GDIPlus.CheckStatus (status);
return new Bitmap (bmp);
}
public static Bitmap FromHicon (IntPtr hicon)
{
IntPtr bitmap;
Status status = GDIPlus.GdipCreateBitmapFromHICON (hicon, out bitmap);
GDIPlus.CheckStatus (status);
return new Bitmap (bitmap);
}
public static Bitmap FromResource (IntPtr hinstance, string bitmapName) //TODO: Untested
{
IntPtr bitmap;
Status status = GDIPlus.GdipCreateBitmapFromResource (hinstance, bitmapName, out bitmap);
GDIPlus.CheckStatus (status);
return new Bitmap (bitmap);
}
[EditorBrowsable (EditorBrowsableState.Advanced)]
[SecurityPermission (SecurityAction.LinkDemand, UnmanagedCode = true)]
public IntPtr GetHbitmap ()
{
return GetHbitmap(Color.Gray);
}
[EditorBrowsable (EditorBrowsableState.Advanced)]
[SecurityPermission (SecurityAction.LinkDemand, UnmanagedCode = true)]
public IntPtr GetHbitmap (Color background)
{
IntPtr HandleBmp;
Status status = GDIPlus.GdipCreateHBITMAPFromBitmap (nativeObject, out HandleBmp, background.ToArgb ());
GDIPlus.CheckStatus (status);
return HandleBmp;
}
[EditorBrowsable (EditorBrowsableState.Advanced)]
[SecurityPermission (SecurityAction.LinkDemand, UnmanagedCode = true)]
public IntPtr GetHicon ()
{
IntPtr HandleIcon;
Status status = GDIPlus.GdipCreateHICONFromBitmap (nativeObject, out HandleIcon);
GDIPlus.CheckStatus (status);
return HandleIcon;
}
public BitmapData LockBits (Rectangle rect, ImageLockMode flags, PixelFormat format)
{
BitmapData result = new BitmapData();
return LockBits (rect, flags, format, result);
}
#if NET_2_0
public
#endif
BitmapData LockBits (Rectangle rect, ImageLockMode flags, PixelFormat format, BitmapData bitmapData)
{
Status status = GDIPlus.GdipBitmapLockBits (nativeObject, ref rect, flags, format, bitmapData);
//NOTE: scan0 points to piece of memory allocated in the unmanaged space
GDIPlus.CheckStatus (status);
return bitmapData;
}
public void MakeTransparent ()
{
Color clr = GetPixel(0,0);
MakeTransparent (clr);
}
public void MakeTransparent (Color transparentColor)
{
// We have to draw always over a 32-bitmap surface that supports alpha channel
Bitmap bmp = new Bitmap(Width, Height, PixelFormat.Format32bppArgb);
Graphics gr = Graphics.FromImage(bmp);
Rectangle destRect = new Rectangle(0, 0, Width, Height);
ImageAttributes imageAttr = new ImageAttributes();
imageAttr.SetColorKey(transparentColor, transparentColor);
gr.DrawImage (this, destRect, 0, 0, Width, Height, GraphicsUnit.Pixel, imageAttr);
IntPtr oldBmp = nativeObject;
nativeObject = bmp.nativeObject;
bmp.nativeObject = oldBmp;
gr.Dispose();
bmp.Dispose();
imageAttr.Dispose();
}
public void SetResolution (float xDpi, float yDpi)
{
Status status = GDIPlus.GdipBitmapSetResolution (nativeObject, xDpi, yDpi);
GDIPlus.CheckStatus (status);
}
public void UnlockBits (BitmapData bitmapdata)
{
Status status = GDIPlus.GdipBitmapUnlockBits (nativeObject, bitmapdata);
GDIPlus.CheckStatus (status);
}
}
}
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