WebKit merge 40722:40785 (part 1)

third_party/WebKit/WebCore/platform/graphics/cairo/TransformationMatrixCairo.cpp

 /*
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
@@ skipping 14 matching lines @@
 #include "config.h"
 #include "TransformationMatrix.h"
 
 #include "IntRect.h"
 #include "FloatRect.h"
 
 #include <cairo.h>
 
 namespace WebCore {
 
-static const double deg2rad = 0.017453292519943295769; // pi/180
-
-TransformationMatrix::TransformationMatrix()
-{
-    cairo_matrix_init_identity(&m_transform);
-}
-
-TransformationMatrix::TransformationMatrix(double a, double b, double c, double d, double tx, double ty)
-{
-    cairo_matrix_init(&m_transform, a, b, c, d, tx, ty);
-}
-
-TransformationMatrix::TransformationMatrix(const PlatformTransformationMatrix& matrix)
-{
-    m_transform = matrix;
-}
-
-void TransformationMatrix::setMatrix(double a, double b, double c, double d, double tx, double ty)
-{
-    cairo_matrix_init(&m_transform, a, b, c, d, tx, ty);
-}
-
-void TransformationMatrix::map(double x, double y, double* x2, double* y2) const
-{
-    *x2 = x;
-    *y2 = y;
-    cairo_matrix_transform_point(&m_transform, x2, y2);
-}
-
-IntRect TransformationMatrix::mapRect(const IntRect &rect) const
-{
-    FloatRect floatRect(rect);
-    FloatRect enclosingFloatRect = this->mapRect(floatRect);
-
-    return enclosingIntRect(enclosingFloatRect);
-}
-
-FloatRect TransformationMatrix::mapRect(const FloatRect &rect) const
-{
-    double rectMinX = rect.x();
-    double rectMaxX = rect.x() + rect.width();
-    double rectMinY = rect.y();
-    double rectMaxY = rect.y() + rect.height();
-
-    double px = rectMinX;
-    double py = rectMinY;
-    cairo_matrix_transform_point(&m_transform, &px, &py);
-
-    double enclosingRectMinX = px;
-    double enclosingRectMinY = py;
-    double enclosingRectMaxX = px;
-    double enclosingRectMaxY = py;
-
-    px = rectMaxX;
-    py = rectMinY;
-    cairo_matrix_transform_point(&m_transform, &px, &py);
-    if (px < enclosingRectMinX)
-        enclosingRectMinX = px;
-    else if (px > enclosingRectMaxX)
-        enclosingRectMaxX = px;
-    if (py < enclosingRectMinY)
-        enclosingRectMinY = py;
-    else if (py > enclosingRectMaxY)
-        enclosingRectMaxY = py;
-
-    px = rectMaxX;
-    py = rectMaxY;
-    cairo_matrix_transform_point(&m_transform, &px, &py);
-    if (px < enclosingRectMinX)
-        enclosingRectMinX = px;
-    else if (px > enclosingRectMaxX)
-        enclosingRectMaxX = px;
-    if (py < enclosingRectMinY)
-        enclosingRectMinY = py;
-    else if (py > enclosingRectMaxY)
-        enclosingRectMaxY = py;
-
-    px = rectMinX;
-    py = rectMaxY;
-    cairo_matrix_transform_point(&m_transform, &px, &py);
-    if (px < enclosingRectMinX)
-        enclosingRectMinX = px;
-    else if (px > enclosingRectMaxX)
-        enclosingRectMaxX = px;
-    if (py < enclosingRectMinY)
-        enclosingRectMinY = py;
-    else if (py > enclosingRectMaxY)
-        enclosingRectMaxY = py;
-
-
-    double enclosingRectWidth = enclosingRectMaxX - enclosingRectMinX;
-    double enclosingRectHeight = enclosingRectMaxY - enclosingRectMinY;
-
-    return FloatRect(enclosingRectMinX, enclosingRectMinY, enclosingRectWidth, enclosingRectHeight);
-}
-
-bool TransformationMatrix::isIdentity() const
-{
-    return ((m_transform.xx == 1) && (m_transform.yy == 1)
-         && (m_transform.xy == 0) && (m_transform.yx == 0)
-         && (m_transform.x0 == 0) && (m_transform.y0 == 0));
-}
-
-double TransformationMatrix::a() const
-{
-    return m_transform.xx;
-}
-
-void TransformationMatrix::setA(double a)
-{
-    m_transform.xx = a;
-}
-
-double TransformationMatrix::b() const
-{
-    return m_transform.yx;
-}
-
-void TransformationMatrix::setB(double b)
-{
-    m_transform.yx = b;
-}
-
-double TransformationMatrix::c() const
-{
-    return m_transform.xy;
-}
-
-void TransformationMatrix::setC(double c)
-{
-    m_transform.xy = c;
-}
-
-double TransformationMatrix::d() const
-{
-    return m_transform.yy;
-}
-
-void TransformationMatrix::setD(double d)
-{
-    m_transform.yy = d;
-}
-
-double TransformationMatrix::e() const
-{
-    return m_transform.x0;
-}
-
-void TransformationMatrix::setE(double e)
-{
-    m_transform.x0 = e;
-}
-
-double TransformationMatrix::f() const
-{
-    return m_transform.y0;
-}
-
-void TransformationMatrix::setF(double f)
-{
-    m_transform.y0 = f;
-}
-
-void TransformationMatrix::reset()
-{
-    cairo_matrix_init_identity(&m_transform);
-}
-
-TransformationMatrix &TransformationMatrix::scale(double sx, double sy)
-{
-    cairo_matrix_scale(&m_transform, sx, sy);
-    return *this;
-}
-
-TransformationMatrix &TransformationMatrix::rotate(double d)
-{
-    cairo_matrix_rotate(&m_transform, d * deg2rad);
-    return *this;
-}
-
-TransformationMatrix &TransformationMatrix::translate(double tx, double ty)
-{
-    cairo_matrix_translate(&m_transform, tx, ty);
-    return *this;
-}
-
-TransformationMatrix &TransformationMatrix::shear(double sx, double sy)
-{
-    cairo_matrix_t shear;
-    cairo_matrix_init(&shear, 1, sy, sx, 1, 0, 0);
-
-    cairo_matrix_t result;
-    cairo_matrix_multiply(&result, &shear, &m_transform);
-    m_transform = result;
-
-    return *this;
-}
-
-double TransformationMatrix::det() const
-{
-    return m_transform.xx * m_transform.yy - m_transform.xy * m_transform.yx;
-}
-
-TransformationMatrix TransformationMatrix::inverse() const
-{
-    if (!isInvertible()) return TransformationMatrix();
-
-    cairo_matrix_t result = m_transform;
-    cairo_matrix_invert(&result);
-    return TransformationMatrix(result);
-}
-
 TransformationMatrix::operator cairo_matrix_t() const
 {
-    return m_transform;
-}
+    cairo_matrix_t m;
 
-bool TransformationMatrix::operator== (const TransformationMatrix &m2) const
-{
-    return ((m_transform.xx == m2.m_transform.xx)
-         && (m_transform.yy == m2.m_transform.yy)
-         && (m_transform.xy == m2.m_transform.xy)
-         && (m_transform.yx == m2.m_transform.yx)
-         && (m_transform.x0 == m2.m_transform.x0)
-         && (m_transform.y0 == m2.m_transform.y0));
-
-}
-
-TransformationMatrix &TransformationMatrix::operator*= (const TransformationMatrix &m2)
-{
-    cairo_matrix_t result;
-    cairo_matrix_multiply(&result, &m_transform, &m2.m_transform);
-    m_transform = result;
-
-    return *this;
-}
-
-TransformationMatrix TransformationMatrix::operator* (const TransformationMatrix &m2)
-{
-    cairo_matrix_t result;
-    cairo_matrix_multiply(&result, &m_transform, &m2.m_transform);
-    return result;
+    cairo_matrix_init (&m,
+                       a(),
+                       b(),
+                       c(),
+                       d(),
+                       e(),
+                       f());
+    return m;
 }
 
 }
 
 // vim: ts=4 sw=4 et