summaryrefslogtreecommitdiffstats
path: root/dom/svg/nsSVGAngle.h
diff options
context:
space:
mode:
Diffstat (limited to 'dom/svg/nsSVGAngle.h')
-rw-r--r--dom/svg/nsSVGAngle.h129
1 files changed, 129 insertions, 0 deletions
diff --git a/dom/svg/nsSVGAngle.h b/dom/svg/nsSVGAngle.h
new file mode 100644
index 000000000..29b7d066a
--- /dev/null
+++ b/dom/svg/nsSVGAngle.h
@@ -0,0 +1,129 @@
+/* -*- 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/. */
+
+#ifndef __NS_SVGANGLE_H__
+#define __NS_SVGANGLE_H__
+
+#include "nsCOMPtr.h"
+#include "nsError.h"
+#include "nsISMILAttr.h"
+#include "mozilla/Attributes.h"
+
+class nsISupports;
+class nsSMILValue;
+class nsSVGElement;
+
+namespace mozilla {
+
+// Angle Unit Types
+static const unsigned short SVG_ANGLETYPE_UNKNOWN = 0;
+static const unsigned short SVG_ANGLETYPE_UNSPECIFIED = 1;
+static const unsigned short SVG_ANGLETYPE_DEG = 2;
+static const unsigned short SVG_ANGLETYPE_RAD = 3;
+static const unsigned short SVG_ANGLETYPE_GRAD = 4;
+
+namespace dom {
+class nsSVGOrientType;
+class SVGAngle;
+class SVGAnimatedAngle;
+class SVGAnimationElement;
+} // namespace dom
+} // namespace mozilla
+
+class nsSVGAngle
+{
+ friend class mozilla::dom::SVGAngle;
+ friend class mozilla::dom::SVGAnimatedAngle;
+
+public:
+ void Init(uint8_t aAttrEnum = 0xff,
+ float aValue = 0,
+ uint8_t aUnitType = mozilla::SVG_ANGLETYPE_UNSPECIFIED) {
+ mAnimVal = mBaseVal = aValue;
+ mAnimValUnit = mBaseValUnit = aUnitType;
+ mAttrEnum = aAttrEnum;
+ mIsAnimated = false;
+ }
+
+ nsresult SetBaseValueString(const nsAString& aValue,
+ nsSVGElement *aSVGElement,
+ bool aDoSetAttr);
+ void GetBaseValueString(nsAString& aValue) const;
+ void GetAnimValueString(nsAString& aValue) const;
+
+ float GetBaseValue() const
+ { return mBaseVal * GetDegreesPerUnit(mBaseValUnit); }
+ float GetAnimValue() const
+ { return mAnimVal * GetDegreesPerUnit(mAnimValUnit); }
+
+ void SetBaseValue(float aValue, nsSVGElement *aSVGElement, bool aDoSetAttr);
+ void SetAnimValue(float aValue, uint8_t aUnit, nsSVGElement *aSVGElement);
+
+ uint8_t GetBaseValueUnit() const { return mBaseValUnit; }
+ uint8_t GetAnimValueUnit() const { return mAnimValUnit; }
+ float GetBaseValInSpecifiedUnits() const { return mBaseVal; }
+ float GetAnimValInSpecifiedUnits() const { return mAnimVal; }
+
+ static nsresult ToDOMSVGAngle(nsISupports **aResult);
+ already_AddRefed<mozilla::dom::SVGAnimatedAngle>
+ ToDOMAnimatedAngle(nsSVGElement* aSVGElement);
+ // Returns a new nsISMILAttr object that the caller must delete
+ nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement);
+
+ static float GetDegreesPerUnit(uint8_t aUnit);
+
+private:
+
+ float mAnimVal;
+ float mBaseVal;
+ uint8_t mAnimValUnit;
+ uint8_t mBaseValUnit;
+ uint8_t mAttrEnum; // element specified tracking for attribute
+ bool mIsAnimated;
+
+ void SetBaseValueInSpecifiedUnits(float aValue, nsSVGElement *aSVGElement);
+ nsresult NewValueSpecifiedUnits(uint16_t aUnitType, float aValue,
+ nsSVGElement *aSVGElement);
+ nsresult ConvertToSpecifiedUnits(uint16_t aUnitType, nsSVGElement *aSVGElement);
+ already_AddRefed<mozilla::dom::SVGAngle> ToDOMBaseVal(nsSVGElement* aSVGElement);
+ already_AddRefed<mozilla::dom::SVGAngle> ToDOMAnimVal(nsSVGElement* aSVGElement);
+
+public:
+ // We do not currently implemente a SMILAngle struct because in SVG 1.1 the
+ // only *animatable* attribute that takes an <angle> is 'orient', on the
+ // 'marker' element, and 'orient' must be special cased since it can also
+ // take the value 'auto', making it a more complex type.
+
+ struct SMILOrient final : public nsISMILAttr
+ {
+ public:
+ SMILOrient(mozilla::dom::nsSVGOrientType* aOrientType,
+ nsSVGAngle* aAngle,
+ nsSVGElement* aSVGElement)
+ : mOrientType(aOrientType)
+ , mAngle(aAngle)
+ , mSVGElement(aSVGElement)
+ {}
+
+ // These will stay alive because a nsISMILAttr only lives as long
+ // as the Compositing step, and DOM elements don't get a chance to
+ // die during that.
+ mozilla::dom::nsSVGOrientType* mOrientType;
+ nsSVGAngle* mAngle;
+ nsSVGElement* mSVGElement;
+
+ // nsISMILAttr methods
+ virtual nsresult ValueFromString(const nsAString& aStr,
+ const mozilla::dom::SVGAnimationElement* aSrcElement,
+ nsSMILValue& aValue,
+ bool& aPreventCachingOfSandwich) const override;
+ virtual nsSMILValue GetBaseValue() const override;
+ virtual void ClearAnimValue() override;
+ virtual nsresult SetAnimValue(const nsSMILValue& aValue) override;
+ };
+};
+
+#endif //__NS_SVGANGLE_H__