Add m-esr52 at 52.6.0

1 files changed, 244 insertions, 0 deletions

diff --git a/dom/svg/nsSVGTransform.cpp b/dom/svg/nsSVGTransform.cpp
new file mode 100644
index 000000000..3a07fa21f
--- /dev/null
+++ b/dom/svg/nsSVGTransform.cpp
@@ -0,0 +1,244 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsError.h"
+#include "nsSVGTransform.h"
+#include "nsContentUtils.h" // for NS_ENSURE_FINITE
+#include "nsTextFormatter.h"
+
+namespace {
+  const double kRadPerDegree = 2.0 * M_PI / 360.0;
+} // namespace
+
+namespace mozilla {
+
+void
+nsSVGTransform::GetValueAsString(nsAString& aValue) const
+{
+  char16_t buf[256];
+
+  switch (mType) {
+    case SVG_TRANSFORM_TRANSLATE:
+      // The spec say that if Y is not provided, it is assumed to be zero.
+      if (mMatrix._32 != 0)
+        nsTextFormatter::snprintf(buf, sizeof(buf)/sizeof(char16_t),
+            u"translate(%g, %g)",
+            mMatrix._31, mMatrix._32);
+      else
+        nsTextFormatter::snprintf(buf, sizeof(buf)/sizeof(char16_t),
+            u"translate(%g)",
+            mMatrix._31);
+      break;
+    case SVG_TRANSFORM_ROTATE:
+      if (mOriginX != 0.0f || mOriginY != 0.0f)
+        nsTextFormatter::snprintf(buf, sizeof(buf)/sizeof(char16_t),
+            u"rotate(%g, %g, %g)",
+            mAngle, mOriginX, mOriginY);
+      else
+        nsTextFormatter::snprintf(buf, sizeof(buf)/sizeof(char16_t),
+            u"rotate(%g)", mAngle);
+      break;
+    case SVG_TRANSFORM_SCALE:
+      if (mMatrix._11 != mMatrix._22)
+        nsTextFormatter::snprintf(buf, sizeof(buf)/sizeof(char16_t),
+            u"scale(%g, %g)", mMatrix._11, mMatrix._22);
+      else
+        nsTextFormatter::snprintf(buf, sizeof(buf)/sizeof(char16_t),
+            u"scale(%g)", mMatrix._11);
+      break;
+    case SVG_TRANSFORM_SKEWX:
+      nsTextFormatter::snprintf(buf, sizeof(buf)/sizeof(char16_t),
+                                u"skewX(%g)", mAngle);
+      break;
+    case SVG_TRANSFORM_SKEWY:
+      nsTextFormatter::snprintf(buf, sizeof(buf)/sizeof(char16_t),
+                                u"skewY(%g)", mAngle);
+      break;
+    case SVG_TRANSFORM_MATRIX:
+      nsTextFormatter::snprintf(buf, sizeof(buf)/sizeof(char16_t),
+          u"matrix(%g, %g, %g, %g, %g, %g)",
+                            mMatrix._11, mMatrix._12,
+                            mMatrix._21, mMatrix._22,
+                            mMatrix._31, mMatrix._32);
+      break;
+    default:
+      buf[0] = '\0';
+      NS_ERROR("unknown transformation type");
+      break;
+  }
+
+  aValue.Assign(buf);
+}
+
+void
+nsSVGTransform::SetMatrix(const gfxMatrix& aMatrix)
+{
+  mType    = SVG_TRANSFORM_MATRIX;
+  mMatrix  = aMatrix;
+  // We set the other members here too, since operator== requires it and
+  // the DOM requires it for mAngle.
+  mAngle   = 0.f;
+  mOriginX = 0.f;
+  mOriginY = 0.f;
+}
+
+void
+nsSVGTransform::SetTranslate(float aTx, float aTy)
+{
+  mType    = SVG_TRANSFORM_TRANSLATE;
+  mMatrix.Reset();
+  mMatrix._31 = aTx;
+  mMatrix._32 = aTy;
+  mAngle   = 0.f;
+  mOriginX = 0.f;
+  mOriginY = 0.f;
+}
+
+void
+nsSVGTransform::SetScale(float aSx, float aSy)
+{
+  mType    = SVG_TRANSFORM_SCALE;
+  mMatrix.Reset();
+  mMatrix._11 = aSx;
+  mMatrix._22 = aSy;
+  mAngle   = 0.f;
+  mOriginX = 0.f;
+  mOriginY = 0.f;
+}
+
+void
+nsSVGTransform::SetRotate(float aAngle, float aCx, float aCy)
+{
+  mType    = SVG_TRANSFORM_ROTATE;
+  mMatrix.Reset();
+  mMatrix.Translate(aCx, aCy);
+  mMatrix.Rotate(aAngle*kRadPerDegree);
+  mMatrix.Translate(-aCx, -aCy);
+  mAngle   = aAngle;
+  mOriginX = aCx;
+  mOriginY = aCy;
+}
+
+nsresult
+nsSVGTransform::SetSkewX(float aAngle)
+{
+  double ta = tan(aAngle*kRadPerDegree);
+  NS_ENSURE_FINITE(ta, NS_ERROR_RANGE_ERR);
+
+  mType    = SVG_TRANSFORM_SKEWX;
+  mMatrix.Reset();
+  mMatrix._21 = ta;
+  mAngle   = aAngle;
+  mOriginX = 0.f;
+  mOriginY = 0.f;
+  return NS_OK;
+}
+
+nsresult
+nsSVGTransform::SetSkewY(float aAngle)
+{
+  double ta = tan(aAngle*kRadPerDegree);
+  NS_ENSURE_FINITE(ta, NS_ERROR_RANGE_ERR);
+
+  mType    = SVG_TRANSFORM_SKEWY;
+  mMatrix.Reset();
+  mMatrix._12 = ta;
+  mAngle   = aAngle;
+  mOriginX = 0.f;
+  mOriginY = 0.f;
+  return NS_OK;
+}
+
+SVGTransformSMILData::SVGTransformSMILData(const nsSVGTransform& aTransform)
+  : mTransformType(aTransform.Type())
+{
+  MOZ_ASSERT(mTransformType >= SVG_TRANSFORM_MATRIX &&
+             mTransformType <= SVG_TRANSFORM_SKEWY,
+             "Unexpected transform type");
+
+  for (uint32_t i = 0; i < NUM_STORED_PARAMS; ++i) {
+    mParams[i] = 0.f;
+  }
+
+  switch (mTransformType) {
+    case SVG_TRANSFORM_MATRIX: {
+      const gfxMatrix& mx = aTransform.GetMatrix();
+      mParams[0] = static_cast<float>(mx._11);
+      mParams[1] = static_cast<float>(mx._12);
+      mParams[2] = static_cast<float>(mx._21);
+      mParams[3] = static_cast<float>(mx._22);
+      mParams[4] = static_cast<float>(mx._31);
+      mParams[5] = static_cast<float>(mx._32);
+      break;
+    }
+    case SVG_TRANSFORM_TRANSLATE: {
+      const gfxMatrix& mx = aTransform.GetMatrix();
+      mParams[0] = static_cast<float>(mx._31);
+      mParams[1] = static_cast<float>(mx._32);
+      break;
+    }
+    case SVG_TRANSFORM_SCALE: {
+      const gfxMatrix& mx = aTransform.GetMatrix();
+      mParams[0] = static_cast<float>(mx._11);
+      mParams[1] = static_cast<float>(mx._22);
+      break;
+    }
+    case SVG_TRANSFORM_ROTATE:
+      mParams[0] = aTransform.Angle();
+      aTransform.GetRotationOrigin(mParams[1], mParams[2]);
+      break;
+
+    case SVG_TRANSFORM_SKEWX:
+    case SVG_TRANSFORM_SKEWY:
+      mParams[0] = aTransform.Angle();
+      break;
+
+    default:
+      NS_NOTREACHED("Unexpected transform type");
+      break;
+  }
+}
+
+nsSVGTransform
+SVGTransformSMILData::ToSVGTransform() const
+{
+  nsSVGTransform result;
+
+  switch (mTransformType) {
+    case SVG_TRANSFORM_MATRIX:
+      result.SetMatrix(gfxMatrix(mParams[0], mParams[1],
+                                 mParams[2], mParams[3],
+                                 mParams[4], mParams[5]));
+      break;
+
+    case SVG_TRANSFORM_TRANSLATE:
+      result.SetTranslate(mParams[0], mParams[1]);
+      break;
+
+    case SVG_TRANSFORM_SCALE:
+      result.SetScale(mParams[0], mParams[1]);
+      break;
+
+    case SVG_TRANSFORM_ROTATE:
+      result.SetRotate(mParams[0], mParams[1], mParams[2]);
+      break;
+
+    case SVG_TRANSFORM_SKEWX:
+      result.SetSkewX(mParams[0]);
+      break;
+
+    case SVG_TRANSFORM_SKEWY:
+      result.SetSkewY(mParams[0]);
+      break;
+
+    default:
+      NS_NOTREACHED("Unexpected transform type");
+      break;
+  }
+  return result;
+}
+
+} // namespace mozilla