| /* |
| * Copyright (C) 2003-2016 Apple Inc. All rights reserved. |
| * |
| * 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 <algorithm> |
| #include <wtf/JSONValues.h> |
| #include <wtf/Forward.h> |
| |
| #if PLATFORM(MAC) && defined __OBJC__ |
| #import <Foundation/NSGeometry.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 |
| |
| #if PLATFORM(IOS_FAMILY) |
| #ifndef NSSize |
| #define NSSize CGSize |
| #endif |
| #endif |
| |
| #if PLATFORM(WIN) |
| typedef struct tagSIZE SIZE; |
| |
| struct D2D_SIZE_U; |
| typedef D2D_SIZE_U D2D1_SIZE_U; |
| |
| struct D2D_SIZE_F; |
| typedef D2D_SIZE_F D2D1_SIZE_F; |
| #endif |
| |
| namespace WTF { |
| class TextStream; |
| } |
| |
| namespace WebCore { |
| |
| class FloatSize; |
| |
| class IntSize { |
| public: |
| IntSize() : m_width(0), m_height(0) { } |
| IntSize(int width, int height) : m_width(width), m_height(height) { } |
| WEBCORE_EXPORT explicit IntSize(const FloatSize&); // don't do this implicitly since it's lossy |
| |
| int width() const { return m_width; } |
| int height() const { return m_height; } |
| |
| void setWidth(int width) { m_width = width; } |
| void setHeight(int height) { m_height = height; } |
| |
| bool isEmpty() const { return m_width <= 0 || m_height <= 0; } |
| bool isZero() const { return !m_width && !m_height; } |
| |
| float aspectRatio() const { return static_cast<float>(m_width) / static_cast<float>(m_height); } |
| |
| void expand(int width, int height) |
| { |
| m_width += width; |
| m_height += height; |
| } |
| |
| void contract(int width, int height) |
| { |
| m_width -= width; |
| m_height -= height; |
| } |
| |
| void scale(float widthScale, float heightScale) |
| { |
| m_width = static_cast<int>(static_cast<float>(m_width) * widthScale); |
| m_height = static_cast<int>(static_cast<float>(m_height) * heightScale); |
| } |
| |
| void scale(float scale) |
| { |
| this->scale(scale, scale); |
| } |
| |
| IntSize expandedTo(const IntSize& other) const |
| { |
| return IntSize(std::max(m_width, other.m_width), std::max(m_height, other.m_height)); |
| } |
| |
| IntSize shrunkTo(const IntSize& other) const |
| { |
| return IntSize(std::min(m_width, other.m_width), std::min(m_height, other.m_height)); |
| } |
| |
| void clampNegativeToZero() |
| { |
| *this = expandedTo(IntSize()); |
| } |
| |
| void clampToMinimumSize(const IntSize& minimumSize) |
| { |
| if (m_width < minimumSize.width()) |
| m_width = minimumSize.width(); |
| if (m_height < minimumSize.height()) |
| m_height = minimumSize.height(); |
| } |
| |
| WEBCORE_EXPORT IntSize constrainedBetween(const IntSize& min, const IntSize& max) const; |
| |
| template <typename T = WTF::CrashOnOverflow> |
| Checked<unsigned, T> area() const |
| { |
| return Checked<unsigned, T>(abs(m_width)) * abs(m_height); |
| } |
| |
| size_t unclampedArea() const |
| { |
| return static_cast<size_t>(abs(m_width)) * abs(m_height); |
| } |
| |
| int diagonalLengthSquared() const |
| { |
| return m_width * m_width + m_height * m_height; |
| } |
| |
| IntSize transposedSize() const |
| { |
| return IntSize(m_height, m_width); |
| } |
| |
| #if USE(CG) |
| WEBCORE_EXPORT explicit IntSize(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 IntSize(const NSSize &); // don't do this implicitly since it's lossy |
| WEBCORE_EXPORT operator NSSize() const; |
| #endif |
| |
| #if PLATFORM(WIN) |
| IntSize(const SIZE&); |
| operator SIZE() const; |
| IntSize(const D2D1_SIZE_U&); |
| explicit IntSize(const D2D1_SIZE_F&); // don't do this implicitly since it's lossy; |
| operator D2D1_SIZE_U() const; |
| operator D2D1_SIZE_F() const; |
| #endif |
| |
| String toJSONString() const; |
| Ref<JSON::Object> toJSONObject() const; |
| |
| private: |
| int m_width, m_height; |
| }; |
| |
| inline IntSize& operator+=(IntSize& a, const IntSize& b) |
| { |
| a.setWidth(a.width() + b.width()); |
| a.setHeight(a.height() + b.height()); |
| return a; |
| } |
| |
| inline IntSize& operator-=(IntSize& a, const IntSize& b) |
| { |
| a.setWidth(a.width() - b.width()); |
| a.setHeight(a.height() - b.height()); |
| return a; |
| } |
| |
| inline IntSize operator+(const IntSize& a, const IntSize& b) |
| { |
| return IntSize(a.width() + b.width(), a.height() + b.height()); |
| } |
| |
| inline IntSize operator-(const IntSize& a, const IntSize& b) |
| { |
| return IntSize(a.width() - b.width(), a.height() - b.height()); |
| } |
| |
| inline IntSize operator-(const IntSize& size) |
| { |
| return IntSize(-size.width(), -size.height()); |
| } |
| |
| inline bool operator==(const IntSize& a, const IntSize& b) |
| { |
| return a.width() == b.width() && a.height() == b.height(); |
| } |
| |
| inline bool operator!=(const IntSize& a, const IntSize& b) |
| { |
| return a.width() != b.width() || a.height() != b.height(); |
| } |
| |
| WEBCORE_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, const IntSize&); |
| |
| } // namespace WebCore |
| |
| namespace WTF { |
| template<> struct DefaultHash<WebCore::IntSize>; |
| template<> struct HashTraits<WebCore::IntSize>; |
| |
| template<typename Type> struct LogArgument; |
| template <> |
| struct LogArgument<WebCore::IntSize> { |
| static String toString(const WebCore::IntSize& size) |
| { |
| return size.toJSONString(); |
| } |
| }; |
| } |
| |