You've already forked linux-packaging-mono
457 lines
11 KiB
C#
457 lines
11 KiB
C#
// 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.
|
|
//
|
|
// Copyright (c) 2007 Novell, Inc. (http://www.novell.com)
|
|
//
|
|
// Authors:
|
|
// Chris Toshok (toshok@ximian.com)
|
|
//
|
|
|
|
using System;
|
|
using System.ComponentModel;
|
|
using System.Globalization;
|
|
using System.Windows.Markup;
|
|
using System.Windows.Media.Converters;
|
|
using System.Windows.Threading;
|
|
|
|
namespace System.Windows.Media {
|
|
|
|
[Serializable]
|
|
[TypeConverter (typeof(MatrixConverter))]
|
|
[ValueSerializer (typeof (MatrixValueSerializer))]
|
|
public struct Matrix : IFormattable {
|
|
|
|
double _m11;
|
|
double _m12;
|
|
double _m21;
|
|
double _m22;
|
|
double _offsetX;
|
|
double _offsetY;
|
|
|
|
public Matrix (double m11,
|
|
double m12,
|
|
double m21,
|
|
double m22,
|
|
double offsetX,
|
|
double offsetY)
|
|
{
|
|
this._m11 = m11;
|
|
this._m12 = m12;
|
|
this._m21 = m21;
|
|
this._m22 = m22;
|
|
this._offsetX = offsetX;
|
|
this._offsetY = offsetY;
|
|
}
|
|
|
|
public void Append (Matrix matrix)
|
|
{
|
|
double _m11;
|
|
double _m21;
|
|
double _m12;
|
|
double _m22;
|
|
double _offsetX;
|
|
double _offsetY;
|
|
|
|
_m11 = this._m11 * matrix.M11 + this._m12 * matrix.M21;
|
|
_m12 = this._m11 * matrix.M12 + this._m12 * matrix.M22;
|
|
_m21 = this._m21 * matrix.M11 + this._m22 * matrix.M21;
|
|
_m22 = this._m21 * matrix.M12 + this._m22 * matrix.M22;
|
|
|
|
_offsetX = this._offsetX * matrix.M11 + this._offsetY * matrix.M21 + matrix.OffsetX;
|
|
_offsetY = this._offsetX * matrix.M12 + this._offsetY * matrix.M22 + matrix.OffsetY;
|
|
|
|
this._m11 = _m11;
|
|
this._m12 = _m12;
|
|
this._m21 = _m21;
|
|
this._m22 = _m22;
|
|
this._offsetX = _offsetX;
|
|
this._offsetY = _offsetY;
|
|
}
|
|
|
|
public bool Equals (Matrix value)
|
|
{
|
|
return (_m11 == value.M11 &&
|
|
_m12 == value.M12 &&
|
|
_m21 == value.M21 &&
|
|
_m22 == value.M22 &&
|
|
_offsetX == value.OffsetX &&
|
|
_offsetY == value.OffsetY);
|
|
}
|
|
|
|
public override bool Equals (object o)
|
|
{
|
|
if (!(o is Matrix))
|
|
return false;
|
|
|
|
return Equals ((Matrix)o);
|
|
}
|
|
|
|
public static bool Equals (Matrix matrix1,
|
|
Matrix matrix2)
|
|
{
|
|
return matrix1.Equals (matrix2);
|
|
}
|
|
|
|
public override int GetHashCode ()
|
|
{
|
|
unchecked
|
|
{
|
|
var hashCode = _m11.GetHashCode ();
|
|
hashCode = (hashCode * 397) ^ _m12.GetHashCode ();
|
|
hashCode = (hashCode * 397) ^ _m21.GetHashCode ();
|
|
hashCode = (hashCode * 397) ^ _m22.GetHashCode ();
|
|
hashCode = (hashCode * 397) ^ _offsetX.GetHashCode ();
|
|
hashCode = (hashCode * 397) ^ _offsetY.GetHashCode ();
|
|
return hashCode;
|
|
}
|
|
}
|
|
|
|
public void Invert ()
|
|
{
|
|
if (!HasInverse)
|
|
throw new InvalidOperationException ("Transform is not invertible.");
|
|
|
|
double d = Determinant;
|
|
|
|
/* 1/(ad-bc)[d -b; -c a] */
|
|
|
|
double _m11 = this._m22;
|
|
double _m12 = -this._m12;
|
|
double _m21 = -this._m21;
|
|
double _m22 = this._m11;
|
|
|
|
double _offsetX = this._m21 * this._offsetY - this._m22 * this._offsetX;
|
|
double _offsetY = this._m12 * this._offsetX - this._m11 * this._offsetY;
|
|
|
|
this._m11 = _m11 / d;
|
|
this._m12 = _m12 / d;
|
|
this._m21 = _m21 / d;
|
|
this._m22 = _m22 / d;
|
|
this._offsetX = _offsetX / d;
|
|
this._offsetY = _offsetY / d;
|
|
}
|
|
|
|
public static Matrix Multiply (Matrix trans1,
|
|
Matrix trans2)
|
|
{
|
|
Matrix m = trans1;
|
|
m.Append (trans2);
|
|
return m;
|
|
}
|
|
|
|
public static bool operator == (Matrix matrix1,
|
|
Matrix matrix2)
|
|
{
|
|
return matrix1.Equals (matrix2);
|
|
}
|
|
|
|
public static bool operator != (Matrix matrix1,
|
|
Matrix matrix2)
|
|
{
|
|
return !matrix1.Equals (matrix2);
|
|
}
|
|
|
|
public static Matrix operator * (Matrix trans1,
|
|
Matrix trans2)
|
|
{
|
|
Matrix result = trans1;
|
|
result.Append (trans2);
|
|
return result;
|
|
}
|
|
|
|
public static Matrix Parse (string source)
|
|
{
|
|
if (source == null)
|
|
throw new ArgumentNullException ("source");
|
|
Matrix value;
|
|
if (source.Trim () == "Identity")
|
|
{
|
|
value = Identity;
|
|
}
|
|
else
|
|
{
|
|
var tokenizer = new NumericListTokenizer (source, CultureInfo.InvariantCulture);
|
|
double m11;
|
|
double m12;
|
|
double m21;
|
|
double m22;
|
|
double offsetX;
|
|
double offsetY;
|
|
if (double.TryParse (tokenizer.GetNextToken (), NumberStyles.Float, CultureInfo.InvariantCulture, out m11)
|
|
&& double.TryParse (tokenizer.GetNextToken (), NumberStyles.Float, CultureInfo.InvariantCulture, out m12)
|
|
&& double.TryParse (tokenizer.GetNextToken (), NumberStyles.Float, CultureInfo.InvariantCulture, out m21)
|
|
&& double.TryParse (tokenizer.GetNextToken (), NumberStyles.Float, CultureInfo.InvariantCulture, out m22)
|
|
&& double.TryParse (tokenizer.GetNextToken (), NumberStyles.Float, CultureInfo.InvariantCulture, out offsetX)
|
|
&& double.TryParse (tokenizer.GetNextToken (), NumberStyles.Float, CultureInfo.InvariantCulture, out offsetY))
|
|
{
|
|
if (!tokenizer.HasNoMoreTokens ())
|
|
{
|
|
throw new InvalidOperationException ("Invalid Matrix format: " + source);
|
|
}
|
|
value = new Matrix (m11, m12, m21, m22, offsetX, offsetY);
|
|
}
|
|
else
|
|
{
|
|
throw new FormatException (string.Format ("Invalid Matrix format: {0}", source));
|
|
}
|
|
}
|
|
return value;
|
|
}
|
|
|
|
public void Prepend (Matrix matrix)
|
|
{
|
|
double _m11;
|
|
double _m21;
|
|
double _m12;
|
|
double _m22;
|
|
double _offsetX;
|
|
double _offsetY;
|
|
|
|
_m11 = matrix.M11 * this._m11 + matrix.M12 * this._m21;
|
|
_m12 = matrix.M11 * this._m12 + matrix.M12 * this._m22;
|
|
_m21 = matrix.M21 * this._m11 + matrix.M22 * this._m21;
|
|
_m22 = matrix.M21 * this._m12 + matrix.M22 * this._m22;
|
|
|
|
_offsetX = matrix.OffsetX * this._m11 + matrix.OffsetY * this._m21 + this._offsetX;
|
|
_offsetY = matrix.OffsetX * this._m12 + matrix.OffsetY * this._m22 + this._offsetY;
|
|
|
|
this._m11 = _m11;
|
|
this._m12 = _m12;
|
|
this._m21 = _m21;
|
|
this._m22 = _m22;
|
|
this._offsetX = _offsetX;
|
|
this._offsetY = _offsetY;
|
|
}
|
|
|
|
public void Rotate (double angle)
|
|
{
|
|
// R_theta==[costheta -sintheta; sintheta costheta],
|
|
double theta = angle * Math.PI / 180;
|
|
|
|
Matrix r_theta = new Matrix (Math.Cos (theta), Math.Sin(theta),
|
|
-Math.Sin (theta), Math.Cos(theta),
|
|
0, 0);
|
|
|
|
Append (r_theta);
|
|
}
|
|
|
|
public void RotateAt (double angle,
|
|
double centerX,
|
|
double centerY)
|
|
{
|
|
Translate (-centerX, -centerY);
|
|
Rotate (angle);
|
|
Translate (centerX, centerY);
|
|
}
|
|
|
|
public void RotateAtPrepend (double angle,
|
|
double centerX,
|
|
double centerY)
|
|
{
|
|
Matrix m = Matrix.Identity;
|
|
m.RotateAt (angle, centerX, centerY);
|
|
Prepend (m);
|
|
}
|
|
|
|
public void RotatePrepend (double angle)
|
|
{
|
|
Matrix m = Matrix.Identity;
|
|
m.Rotate (angle);
|
|
Prepend (m);
|
|
}
|
|
|
|
public void Scale (double scaleX,
|
|
double scaleY)
|
|
{
|
|
Matrix scale = new Matrix (scaleX, 0,
|
|
0, scaleY,
|
|
0, 0);
|
|
|
|
Append (scale);
|
|
}
|
|
|
|
public void ScaleAt (double scaleX,
|
|
double scaleY,
|
|
double centerX,
|
|
double centerY)
|
|
{
|
|
Translate (-centerX, -centerY);
|
|
Scale (scaleX, scaleY);
|
|
Translate (centerX, centerY);
|
|
}
|
|
|
|
public void ScaleAtPrepend (double scaleX,
|
|
double scaleY,
|
|
double centerX,
|
|
double centerY)
|
|
{
|
|
Matrix m = Matrix.Identity;
|
|
m.ScaleAt (scaleX, scaleY, centerX, centerY);
|
|
Prepend (m);
|
|
}
|
|
|
|
public void ScalePrepend (double scaleX,
|
|
double scaleY)
|
|
{
|
|
Matrix m = Matrix.Identity;
|
|
m.Scale (scaleX, scaleY);
|
|
Prepend (m);
|
|
}
|
|
|
|
public void SetIdentity ()
|
|
{
|
|
_m11 = _m22 = 1.0;
|
|
_m12 = _m21 = 0.0;
|
|
_offsetX = _offsetY = 0.0;
|
|
}
|
|
|
|
public void Skew (double skewX,
|
|
double skewY)
|
|
{
|
|
Matrix skew_m = new Matrix (1, Math.Tan (skewY * Math.PI / 180),
|
|
Math.Tan (skewX * Math.PI / 180), 1,
|
|
0, 0);
|
|
Append (skew_m);
|
|
}
|
|
|
|
public void SkewPrepend (double skewX,
|
|
double skewY)
|
|
{
|
|
Matrix m = Matrix.Identity;
|
|
m.Skew (skewX, skewY);
|
|
Prepend (m);
|
|
}
|
|
|
|
public override string ToString ()
|
|
{
|
|
return ToString (null);
|
|
}
|
|
|
|
public string ToString (IFormatProvider provider)
|
|
{
|
|
return ToString (null, provider);
|
|
}
|
|
|
|
string IFormattable.ToString (string format,
|
|
IFormatProvider provider)
|
|
{
|
|
return ToString (provider);
|
|
}
|
|
|
|
private string ToString (string format, IFormatProvider provider)
|
|
{
|
|
if (IsIdentity)
|
|
return "Identity";
|
|
|
|
if (provider == null)
|
|
provider = CultureInfo.CurrentCulture;
|
|
|
|
if (format == null)
|
|
format = string.Empty;
|
|
|
|
var separator = NumericListTokenizer.GetSeparator (provider);
|
|
|
|
var matrixFormat = string.Format (
|
|
"{{0:{0}}}{1}{{1:{0}}}{1}{{2:{0}}}{1}{{3:{0}}}{1}{{4:{0}}}{1}{{5:{0}}}",
|
|
format, separator);
|
|
return string.Format (provider, matrixFormat,
|
|
_m11, _m12, _m21, _m22, _offsetX, _offsetY);
|
|
}
|
|
|
|
public Point Transform (Point point)
|
|
{
|
|
return Point.Multiply (point, this);
|
|
}
|
|
|
|
public void Transform (Point[] points)
|
|
{
|
|
for (int i = 0; i < points.Length; i ++)
|
|
points[i] = Transform (points[i]);
|
|
}
|
|
|
|
public Vector Transform (Vector vector)
|
|
{
|
|
return Vector.Multiply (vector, this);
|
|
}
|
|
|
|
public void Transform (Vector[] vectors)
|
|
{
|
|
for (int i = 0; i < vectors.Length; i ++)
|
|
vectors[i] = Transform (vectors[i]);
|
|
}
|
|
|
|
public void Translate (double offsetX,
|
|
double offsetY)
|
|
{
|
|
this._offsetX += offsetX;
|
|
this._offsetY += offsetY;
|
|
}
|
|
|
|
public void TranslatePrepend (double offsetX,
|
|
double offsetY)
|
|
{
|
|
Matrix m = Matrix.Identity;
|
|
m.Translate (offsetX, offsetY);
|
|
Prepend (m);
|
|
}
|
|
|
|
public double Determinant {
|
|
get { return _m11 * _m22 - _m12 * _m21; }
|
|
}
|
|
|
|
public bool HasInverse {
|
|
get { return Determinant != 0; }
|
|
}
|
|
|
|
public static Matrix Identity {
|
|
get { return new Matrix (1.0, 0.0, 0.0, 1.0, 0.0, 0.0); }
|
|
}
|
|
|
|
public bool IsIdentity {
|
|
get { return Equals (Matrix.Identity); }
|
|
}
|
|
|
|
public double M11 {
|
|
get { return _m11; }
|
|
set { _m11 = value; }
|
|
}
|
|
public double M12 {
|
|
get { return _m12; }
|
|
set { _m12 = value; }
|
|
}
|
|
public double M21 {
|
|
get { return _m21; }
|
|
set { _m21 = value; }
|
|
}
|
|
public double M22 {
|
|
get { return _m22; }
|
|
set { _m22 = value; }
|
|
}
|
|
public double OffsetX {
|
|
get { return _offsetX; }
|
|
set { _offsetX = value; }
|
|
}
|
|
public double OffsetY {
|
|
get { return _offsetY; }
|
|
set { _offsetY = value; }
|
|
}
|
|
}
|
|
|
|
}
|