| /* |
| * Copyright (C) 2003-2016 Apple Inc. All rights reserved. |
| * Copyright (C) 2005 Nokia. All rights reserved. |
| * 2008 Eric Seidel <eric@webkit.org> |
| * |
| * 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #include "IntPoint.h" |
| #include <wtf/JSONValues.h> |
| #include <wtf/MathExtras.h> |
| #include <wtf/text/WTFString.h> |
| |
| #if PLATFORM(IOS_FAMILY) |
| #include <CoreGraphics/CoreGraphics.h> |
| #endif |
| |
| #if USE(CG) |
| typedef struct CGSize CGSize; |
| #endif |
| |
| #if PLATFORM(MAC) |
| #ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES |
| typedef struct CGSize NSSize; |
| #else |
| typedef struct _NSSize NSSize; |
| #endif |
| #endif // PLATFORM(MAC) |
| |
| #if PLATFORM(WIN) |
| struct D2D_SIZE_F; |
| typedef D2D_SIZE_F D2D1_SIZE_F; |
| #endif |
| |
| namespace WTF { |
| class TextStream; |
| } |
| |
| namespace WebCore { |
| |
| class IntSize; |
| |
| class FloatSize { |
| public: |
| FloatSize() { } |
| FloatSize(float width, float height) : m_width(width), m_height(height) { } |
| WEBCORE_EXPORT FloatSize(const IntSize&); |
| |
| static FloatSize narrowPrecision(double width, double height); |
| |
| float width() const { return m_width; } |
| float height() const { return m_height; } |
| |
| bool hasIntrinsicWidth = false; |
| bool hasIntrinsicHeight = false; |
| |
| void setWidth(float width) { m_width = width; } |
| void setHeight(float height) { m_height = height; } |
| |
| bool isEmpty() const { return m_width <= 0 || m_height <= 0; } |
| WEBCORE_EXPORT bool isZero() const; |
| bool isExpressibleAsIntSize() const; |
| |
| float aspectRatio() const { return m_width / m_height; } |
| |
| void expand(float width, float height) |
| { |
| m_width += width; |
| m_height += height; |
| } |
| |
| void scale(float s) |
| { |
| m_width *= s; |
| m_height *= s; |
| } |
| |
| void scale(float scaleX, float scaleY) |
| { |
| m_width *= scaleX; |
| m_height *= scaleY; |
| } |
| |
| FloatSize scaled(float s) const |
| { |
| return { m_width * s, m_height * s }; |
| } |
| |
| FloatSize scaled(float scaleX, float scaleY) const |
| { |
| return { m_width * scaleX, m_height * scaleY }; |
| } |
| |
| WEBCORE_EXPORT FloatSize constrainedBetween(const FloatSize& min, const FloatSize& max) const; |
| |
| FloatSize expandedTo(const FloatSize& other) const |
| { |
| return FloatSize(m_width > other.m_width ? m_width : other.m_width, |
| m_height > other.m_height ? m_height : other.m_height); |
| } |
| |
| FloatSize shrunkTo(const FloatSize& other) const |
| { |
| return FloatSize(m_width < other.m_width ? m_width : other.m_width, |
| m_height < other.m_height ? m_height : other.m_height); |
| } |
| |
| float diagonalLength() const |
| { |
| return std::hypot(m_width, m_height); |
| } |
| |
| float diagonalLengthSquared() const |
| { |
| return m_width * m_width + m_height * m_height; |
| } |
| |
| float area() const |
| { |
| return m_width * m_height; |
| } |
| |
| FloatSize transposedSize() const |
| { |
| return FloatSize(m_height, m_width); |
| } |
| |
| #if USE(CG) |
| WEBCORE_EXPORT explicit FloatSize(const CGSize&); // don't do this implicitly since it's lossy |
| WEBCORE_EXPORT operator CGSize() const; |
| #endif |
| |
| #if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES) |
| WEBCORE_EXPORT explicit FloatSize(const NSSize&); // don't do this implicitly since it's lossy |
| operator NSSize() const; |
| #endif |
| |
| #if PLATFORM(WIN) |
| WEBCORE_EXPORT FloatSize(const D2D1_SIZE_F&); |
| operator D2D1_SIZE_F() const; |
| #endif |
| |
| String toJSONString() const; |
| WEBCORE_EXPORT Ref<JSON::Object> toJSONObject() const; |
| |
| private: |
| float m_width { 0 }; |
| float m_height { 0 }; |
| }; |
| |
| inline FloatSize& operator+=(FloatSize& a, const FloatSize& b) |
| { |
| a.setWidth(a.width() + b.width()); |
| a.setHeight(a.height() + b.height()); |
| return a; |
| } |
| |
| inline FloatSize& operator-=(FloatSize& a, const FloatSize& b) |
| { |
| a.setWidth(a.width() - b.width()); |
| a.setHeight(a.height() - b.height()); |
| return a; |
| } |
| |
| inline FloatSize operator+(const FloatSize& a, const FloatSize& b) |
| { |
| return FloatSize(a.width() + b.width(), a.height() + b.height()); |
| } |
| |
| inline FloatSize operator-(const FloatSize& a, const FloatSize& b) |
| { |
| return FloatSize(a.width() - b.width(), a.height() - b.height()); |
| } |
| |
| inline FloatSize operator-(const FloatSize& size) |
| { |
| return FloatSize(-size.width(), -size.height()); |
| } |
| |
| inline FloatSize operator*(const FloatSize& a, float b) |
| { |
| return FloatSize(a.width() * b, a.height() * b); |
| } |
| |
| inline FloatSize operator*(float a, const FloatSize& b) |
| { |
| return FloatSize(a * b.width(), a * b.height()); |
| } |
| |
| inline FloatSize operator*(const FloatSize& a, const FloatSize& b) |
| { |
| return FloatSize(a.width() * b.width(), a.height() * b.height()); |
| } |
| |
| inline FloatSize operator/(const FloatSize& a, const FloatSize& b) |
| { |
| return FloatSize(a.width() / b.width(), a.height() / b.height()); |
| } |
| |
| inline FloatSize operator/(const FloatSize& a, float b) |
| { |
| return FloatSize(a.width() / b, a.height() / b); |
| } |
| |
| inline FloatSize operator/(float a, const FloatSize& b) |
| { |
| return FloatSize(a / b.width(), a / b.height()); |
| } |
| |
| inline bool operator==(const FloatSize& a, const FloatSize& b) |
| { |
| return a.width() == b.width() && a.height() == b.height(); |
| } |
| |
| inline bool areEssentiallyEqual(const FloatSize& a, const FloatSize& b) |
| { |
| return WTF::areEssentiallyEqual(a.width(), b.width()) && WTF::areEssentiallyEqual(a.height(), b.height()); |
| } |
| |
| inline bool operator!=(const FloatSize& a, const FloatSize& b) |
| { |
| return a.width() != b.width() || a.height() != b.height(); |
| } |
| |
| inline IntSize roundedIntSize(const FloatSize& p) |
| { |
| return IntSize(clampToInteger(roundf(p.width())), clampToInteger(roundf(p.height()))); |
| } |
| |
| inline IntSize flooredIntSize(const FloatSize& p) |
| { |
| return IntSize(clampToInteger(floorf(p.width())), clampToInteger(floorf(p.height()))); |
| } |
| |
| inline IntSize expandedIntSize(const FloatSize& p) |
| { |
| return IntSize(clampToInteger(ceilf(p.width())), clampToInteger(ceilf(p.height()))); |
| } |
| |
| inline IntPoint flooredIntPoint(const FloatSize& p) |
| { |
| return IntPoint(clampToInteger(floorf(p.width())), clampToInteger(floorf(p.height()))); |
| } |
| |
| WEBCORE_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, const FloatSize&); |
| |
| } // namespace WebCore |
| |
| namespace WTF { |
| template<> struct DefaultHash<WebCore::FloatSize>; |
| template<> struct HashTraits<WebCore::FloatSize>; |
| |
| template<typename Type> struct LogArgument; |
| template <> |
| struct LogArgument<WebCore::FloatSize> { |
| static String toString(const WebCore::FloatSize& size) |
| { |
| return size.toJSONString(); |
| } |
| }; |
| |
| } // namespace WTF |