WebCore/WebKitCSSMatrix.h

   1 /*
   2  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef WebKitCSSMatrix_h
  27 #define WebKitCSSMatrix_h
  28
  29 #include "ExceptionCode.h"
  30 #include "PlatformString.h"
  31 #include "StyleBase.h"
  32 #include "TransformationMatrix.h"
  33 #include <wtf/PassRefPtr.h>
  34 #include <wtf/RefPtr.h>
  35
  36 namespace WebCore {
  37
  38 class WebKitCSSMatrix : public StyleBase {
  39 public:
  40     static PassRefPtr<WebKitCSSMatrix> create()
  41     {
  42         return adoptRef(new WebKitCSSMatrix());
  43     }
  44     static PassRefPtr<WebKitCSSMatrix> create(const WebKitCSSMatrix& m)
  45     {
  46         return adoptRef(new WebKitCSSMatrix(m));
  47     }
  48     static PassRefPtr<WebKitCSSMatrix> create(const TransformationMatrix& m)
  49     {
  50         return adoptRef(new WebKitCSSMatrix(m));
  51     }
  52     static PassRefPtr<WebKitCSSMatrix> create(const String& s, ExceptionCode& ec)
  53     {
  54         return adoptRef(new WebKitCSSMatrix(s, ec));
  55     }
  56
  57     virtual ~WebKitCSSMatrix();
  58
  59     double a() const { return m_matrix.a(); }
  60     double b() const { return m_matrix.b(); }
  61     double c() const { return m_matrix.c(); }
  62     double d() const { return m_matrix.d(); }
  63     double e() const { return m_matrix.e(); }
  64     double f() const { return m_matrix.f(); }
  65
  66     void setA(double f) { m_matrix.setA(f); }
  67     void setB(double f) { m_matrix.setB(f); }
  68     void setC(double f) { m_matrix.setC(f); }
  69     void setD(double f) { m_matrix.setD(f); }
  70     void setE(double f) { m_matrix.setE(f); }
  71     void setF(double f) { m_matrix.setF(f); }
  72
  73     double m11() const { return m_matrix.m11(); }
  74     double m12() const { return m_matrix.m12(); }
  75     double m13() const { return m_matrix.m13(); }
  76     double m14() const { return m_matrix.m14(); }
  77     double m21() const { return m_matrix.m21(); }
  78     double m22() const { return m_matrix.m22(); }
  79     double m23() const { return m_matrix.m23(); }
  80     double m24() const { return m_matrix.m24(); }
  81     double m31() const { return m_matrix.m31(); }
  82     double m32() const { return m_matrix.m32(); }
  83     double m33() const { return m_matrix.m33(); }
  84     double m34() const { return m_matrix.m34(); }
  85     double m41() const { return m_matrix.m41(); }
  86     double m42() const { return m_matrix.m42(); }
  87     double m43() const { return m_matrix.m43(); }
  88     double m44() const { return m_matrix.m44(); }
  89
  90     void setM11(double f) { m_matrix.setM11(f); }
  91     void setM12(double f) { m_matrix.setM12(f); }
  92     void setM13(double f) { m_matrix.setM13(f); }
  93     void setM14(double f) { m_matrix.setM14(f); }
  94     void setM21(double f) { m_matrix.setM21(f); }
  95     void setM22(double f) { m_matrix.setM22(f); }
  96     void setM23(double f) { m_matrix.setM23(f); }
  97     void setM24(double f) { m_matrix.setM24(f); }
  98     void setM31(double f) { m_matrix.setM31(f); }
  99     void setM32(double f) { m_matrix.setM32(f); }
 100     void setM33(double f) { m_matrix.setM33(f); }
 101     void setM34(double f) { m_matrix.setM34(f); }
 102     void setM41(double f) { m_matrix.setM41(f); }
 103     void setM42(double f) { m_matrix.setM42(f); }
 104     void setM43(double f) { m_matrix.setM43(f); }
 105     void setM44(double f) { m_matrix.setM44(f); }
 106
 107     void setMatrixValue(const String& string, ExceptionCode&);
 108
 109     // The following math function return a new matrix with the
 110     // specified operation applied. The this value is not modified.
 111
 112     // Multiply this matrix by secondMatrix, on the right (result = this * secondMatrix)
 113     PassRefPtr<WebKitCSSMatrix> multiply(WebKitCSSMatrix* secondMatrix) const;
 114
 115     // Return the inverse of this matrix. Throw an exception if the matrix is not invertible
 116     PassRefPtr<WebKitCSSMatrix> inverse(ExceptionCode&) const;
 117
 118     // Return this matrix translated by the passed values.
 119     // Passing a NaN will use a value of 0. This allows the 3D form to used for 2D operations
 120     // Operation is performed as though the this matrix is multiplied by a matrix with
 121     // the translation values on the left (result = translation(x,y,z) * this)
 122     PassRefPtr<WebKitCSSMatrix> translate(double x, double y, double z) const;
 123
 124     // Returns this matrix scaled by the passed values.
 125     // Passing scaleX or scaleZ as NaN uses a value of 1, but passing scaleY of NaN
 126     // makes it the same as scaleX. This allows the 3D form to used for 2D operations
 127     // Operation is performed as though the this matrix is multiplied by a matrix with
 128     // the scale values on the left (result = scale(x,y,z) * this)
 129     PassRefPtr<WebKitCSSMatrix> scale(double scaleX, double scaleY, double scaleZ) const;
 130
 131     // Returns this matrix rotated by the passed values.
 132     // If rotY and rotZ are NaN, rotate about Z (rotX=0, rotateY=0, rotateZ=rotX).
 133     // Otherwise use a rotation value of 0 for any passed NaN.
 134     // Operation is performed as though the this matrix is multiplied by a matrix with
 135     // the rotation values on the left (result = rotation(x,y,z) * this)
 136     PassRefPtr<WebKitCSSMatrix> rotate(double rotX, double rotY, double rotZ) const;
 137
 138     // Returns this matrix rotated about the passed axis by the passed angle.
 139     // Passing a NaN will use a value of 0. If the axis is (0,0,0) use a value
 140     // Operation is performed as though the this matrix is multiplied by a matrix with
 141     // the rotation values on the left (result = rotation(x,y,z,angle) * this)
 142     PassRefPtr<WebKitCSSMatrix> rotateAxisAngle(double x, double y, double z, double angle) const;
 143
 144     const TransformationMatrix& transform() const { return m_matrix; }
 145
 146     String toString() const;
 147
 148 protected:
 149     WebKitCSSMatrix();
 150     WebKitCSSMatrix(const WebKitCSSMatrix&);
 151     WebKitCSSMatrix(const TransformationMatrix&);
 152     WebKitCSSMatrix(const String&, ExceptionCode& );
 153
 154     TransformationMatrix m_matrix;
 155 };
 156
 157 } // namespace WebCore
 158
 159 #endif // WebKitCSSMatrix_h