167 lines
6.3 KiB
Text
167 lines
6.3 KiB
Text
// Pixbuf.custom - Gdk Pixbuf class customizations
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//
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// Authors:
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// Vladimir Vukicevic <vladimir@pobox.com>
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// Miguel de Icaza <miguel@ximian.com>
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// Duncan Mak <duncan@ximian.com>
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// Gonzalo Paniagua Javier <gonzalo@ximian.com>
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// Martin Willemoes Hansen <mwh@sysrq.dk>
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//
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// (C) 2002 Vladimir Vukicevic
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// (C) 2003 Ximian, Inc. (Miguel de Icaza)
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// (C) 2003 Ximian, Inc. (Duncan Mak)
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// (C) 2003 Ximian, Inc. (Gonzalo Paniagua Javier)
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// (C) 2003 Martin Willemoes Hansen
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//
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// This code is inserted after the automatically generated code.
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[DllImport("libgobject-2.0-0.dll")]
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static extern void g_object_ref (IntPtr handle);
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private void LoadFromStream (System.IO.Stream input)
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{
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PixbufLoader loader = new PixbufLoader ();
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byte [] buffer = new byte [8192];
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int n;
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while ((n = input.Read (buffer, 0, 8192)) != 0)
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loader.Write (buffer, (uint) n);
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loader.Close ();
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Raw = loader.PixbufHandle;
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if (Raw == IntPtr.Zero)
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throw new ArgumentException ("Unable to load pixbuf from stream");
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g_object_ref (Raw);
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}
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public Pixbuf (System.IO.Stream stream)
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{
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LoadFromStream (stream);
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}
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public Pixbuf (System.Reflection.Assembly assembly, string resource)
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{
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if (assembly == null)
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assembly = System.Reflection.Assembly.GetCallingAssembly ();
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if (resource == null)
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throw new ArgumentNullException ("resource");
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System.IO.Stream s = assembly.GetManifestResourceStream (resource);
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if (s == null)
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throw new ArgumentException ("resource must be a valid resource name of 'assembly'.");
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LoadFromStream (s);
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}
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static public Pixbuf LoadFromResource (string resource)
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{
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if (resource == null)
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throw new ArgumentNullException ("resource");
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return new Pixbuf (System.Reflection.Assembly.GetCallingAssembly (), resource);
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}
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[DllImport("libgdk_pixbuf-2.0-0.dll")]
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static extern IntPtr gdk_pixbuf_scale_simple(IntPtr raw, int dest_width, int dest_height, int interp_type);
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public Gdk.Pixbuf ScaleSimple(int dest_width, int dest_height, Gdk.InterpType interp_type) {
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IntPtr raw_ret = gdk_pixbuf_scale_simple(Handle, dest_width, dest_height, (int) interp_type);
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Gdk.Pixbuf ret = (Gdk.Pixbuf) GLib.Object.GetObject(raw_ret, true);
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return ret;
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}
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[DllImport("libgdk_pixbuf-2.0-0.dll")]
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static extern IntPtr gdk_pixbuf_composite_color_simple(IntPtr raw, int dest_width, int dest_height, int interp_type, int overall_alpha, int check_size, uint color1, uint color2);
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public Gdk.Pixbuf CompositeColorSimple(int dest_width, int dest_height, Gdk.InterpType interp_type, int overall_alpha, int check_size, uint color1, uint color2) {
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IntPtr raw_ret = gdk_pixbuf_composite_color_simple(Handle, dest_width, dest_height, (int) interp_type, overall_alpha, check_size, color1, color2);
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Gdk.Pixbuf ret = (Gdk.Pixbuf) GLib.Object.GetObject(raw_ret, true);
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return ret;
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}
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[DllImport("libgdk_pixbuf-2.0-0.dll")]
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static extern IntPtr gdk_pixbuf_add_alpha(IntPtr raw, bool substitute_color, byte r, byte g, byte b);
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public Gdk.Pixbuf AddAlpha(bool substitute_color, byte r, byte g, byte b) {
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IntPtr raw_ret = gdk_pixbuf_add_alpha(Handle, substitute_color, r, g, b);
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Gdk.Pixbuf ret = (Gdk.Pixbuf) GLib.Object.GetObject(raw_ret, true);
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return ret;
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}
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// overload to default the colorspace
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public Pixbuf(byte [] data, bool has_alpha, int bits_per_sample, int width, int height, int rowstride, Gdk.PixbufDestroyNotify destroy_fn)
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{
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GdkSharp.PixbufDestroyNotifyWrapper destroy_fn_wrapper = null;
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destroy_fn_wrapper = new GdkSharp.PixbufDestroyNotifyWrapper (destroy_fn, this);
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Raw = gdk_pixbuf_new_from_data(data, (int) Gdk.Colorspace.Rgb, has_alpha, bits_per_sample, width, height, rowstride, destroy_fn_wrapper.NativeDelegate, IntPtr.Zero);
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}
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public unsafe Pixbuf(byte[] data, bool copy_pixels)
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{
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IntPtr error = IntPtr.Zero;
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Raw = gdk_pixbuf_new_from_inline(data.Length, data, copy_pixels, out error);
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if (error != IntPtr.Zero) throw new GLib.GException (error);
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}
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[DllImport("libgdk_pixbuf-2.0-0.dll")]
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static extern unsafe IntPtr gdk_pixbuf_new_from_inline(int len, IntPtr data, bool copy_pixels, out IntPtr error);
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public unsafe Pixbuf(int data_length, void *data, bool copy_pixels)
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{
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IntPtr error = IntPtr.Zero;
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Raw = gdk_pixbuf_new_from_inline(data_length, (IntPtr) data, copy_pixels, out error);
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if (error != IntPtr.Zero) throw new GLib.GException (error);
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}
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//
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// ICloneable interface
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//
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public object Clone ()
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{
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return Copy ();
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}
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//
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// These are factory versions of a couple of existing methods, but simplify
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// the process by reducing the number of steps required. Here a single
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// operation will create the Pixbuf instead of two
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//
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public Gdk.Pixbuf CreateFromDrawable (Gdk.Drawable src, Gdk.Colormap cmap, int src_x, int src_y, int dest_x, int dest_y, int width, int height) {
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IntPtr raw_ret = gdk_pixbuf_get_from_drawable((IntPtr) 0, src.Handle, cmap.Handle, src_x, src_y, dest_x, dest_y, width, height);
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return new Pixbuf (raw_ret);
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}
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//
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// Add an overload that takes System.Drawing.Color arguments instead of uint32 values for colors
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//
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public void CompositeColor(Gdk.Pixbuf dest, int dest_x, int dest_y, int dest_width, int dest_height,
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double offset_x, double offset_y, double scale_x, double scale_y,
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Gdk.InterpType interp_type, int overall_alpha, int check_x, int check_y,
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int check_size, System.Drawing.Color color1, System.Drawing.Color color2)
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{
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gdk_pixbuf_composite_color(Handle, dest.Handle, dest_x, dest_y, dest_width, dest_height, offset_x,
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offset_y, scale_x, scale_y, (int) interp_type, overall_alpha, check_x, check_y, check_size,
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(uint) color1.ToArgb (), (uint) color2.ToArgb ());
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}
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public Gdk.Pixbuf CompositeColorSimple(int dest_width, int dest_height, Gdk.InterpType interp_type, int overall_alpha, int check_size, System.Drawing.Color color1, System.Drawing.Color color2) {
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return CompositeColorSimple (dest_width, dest_height, interp_type, overall_alpha, check_size, (uint) color1.ToArgb (), (uint) color2.ToArgb ());
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}
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//
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// the 'Pixels' property
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//
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[DllImport("libgdk_pixbuf-2.0-0.dll")]
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static extern unsafe byte* gdk_pixbuf_get_pixels(IntPtr raw);
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public unsafe byte* Pixels {
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get {
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byte *ret = gdk_pixbuf_get_pixels (Handle);
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return ret;
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}
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}
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