| /* |
| * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. All rights reserved. |
| * Copyright (C) 2013 Google 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 COMPUTER, 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 COMPUTER, 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. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_INT_POINT_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_INT_POINT_H_ |
| |
| #include "build/build_config.h" |
| #include "third_party/blink/renderer/platform/geometry/int_size.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator.h" |
| #include "third_party/blink/renderer/platform/wtf/forward.h" |
| #include "third_party/blink/renderer/platform/wtf/math_extras.h" |
| #include "third_party/blink/renderer/platform/wtf/saturated_arithmetic.h" |
| #include "third_party/blink/renderer/platform/wtf/vector_traits.h" |
| #include "ui/gfx/geometry/point.h" |
| |
| #if defined(OS_MACOSX) |
| typedef struct CGPoint CGPoint; |
| |
| #ifdef __OBJC__ |
| #import <Foundation/Foundation.h> |
| #endif |
| #endif |
| |
| namespace gfx { |
| class Vector2d; |
| } |
| |
| namespace blink { |
| |
| class PLATFORM_EXPORT IntPoint { |
| USING_FAST_MALLOC(IntPoint); |
| |
| public: |
| constexpr IntPoint() : x_(0), y_(0) {} |
| constexpr IntPoint(int x, int y) : x_(x), y_(y) {} |
| explicit IntPoint(const IntSize& size) |
| : x_(size.Width()), y_(size.Height()) {} |
| explicit IntPoint(const gfx::Point& point) : x_(point.x()), y_(point.y()) {} |
| |
| static IntPoint Zero() { return IntPoint(); } |
| |
| constexpr int X() const { return x_; } |
| constexpr int Y() const { return y_; } |
| |
| void SetX(int x) { x_ = x; } |
| void SetY(int y) { y_ = y; } |
| |
| void Move(const IntSize& s) { Move(s.Width(), s.Height()); } |
| void MoveBy(const IntPoint& offset) { Move(offset.X(), offset.Y()); } |
| void Move(int dx, int dy) { |
| x_ += dx; |
| y_ += dy; |
| } |
| void SaturatedMove(int dx, int dy) { |
| x_ = ClampAdd(x_, dx); |
| y_ = ClampAdd(y_, dy); |
| } |
| |
| void Scale(float sx, float sy) { |
| x_ = static_cast<int>(lroundf(static_cast<float>(x_ * sx))); |
| y_ = static_cast<int>(lroundf(static_cast<float>(y_ * sy))); |
| } |
| |
| IntPoint ExpandedTo(const IntPoint& other) const { |
| return IntPoint(x_ > other.x_ ? x_ : other.x_, |
| y_ > other.y_ ? y_ : other.y_); |
| } |
| |
| IntPoint ShrunkTo(const IntPoint& other) const { |
| return IntPoint(x_ < other.x_ ? x_ : other.x_, |
| y_ < other.y_ ? y_ : other.y_); |
| } |
| |
| int DistanceSquaredToPoint(const IntPoint&) const; |
| |
| void ClampNegativeToZero() { *this = ExpandedTo(Zero()); } |
| |
| IntPoint TransposedPoint() const { return IntPoint(y_, x_); } |
| |
| #if defined(OS_MACOSX) |
| explicit IntPoint( |
| const CGPoint&); // don't do this implicitly since it's lossy |
| operator CGPoint() const; |
| #endif |
| |
| operator gfx::Point() const; |
| // IntPoint is used as an offset, but outside blink, the Vector2d type is used |
| // for offsets instead. Addition of Point+Vector2d gives an offseted Point. |
| explicit operator gfx::Vector2d() const; |
| |
| String ToString() const; |
| |
| private: |
| int x_, y_; |
| }; |
| |
| inline IntPoint& operator+=(IntPoint& a, const IntSize& b) { |
| a.Move(b.Width(), b.Height()); |
| return a; |
| } |
| |
| inline IntPoint& operator-=(IntPoint& a, const IntSize& b) { |
| a.Move(-b.Width(), -b.Height()); |
| return a; |
| } |
| |
| constexpr IntPoint operator+(const IntPoint& a, const IntSize& b) { |
| return IntPoint(a.X() + b.Width(), a.Y() + b.Height()); |
| } |
| |
| constexpr IntPoint operator+(const IntPoint& a, const IntPoint& b) { |
| return IntPoint(a.X() + b.X(), a.Y() + b.Y()); |
| } |
| |
| constexpr IntSize operator-(const IntPoint& a, const IntPoint& b) { |
| return IntSize(a.X() - b.X(), a.Y() - b.Y()); |
| } |
| |
| constexpr IntPoint operator-(const IntPoint& a, const IntSize& b) { |
| return IntPoint(a.X() - b.Width(), a.Y() - b.Height()); |
| } |
| |
| constexpr IntPoint operator-(const IntPoint& point) { |
| return IntPoint(-point.X(), -point.Y()); |
| } |
| |
| constexpr bool operator==(const IntPoint& a, const IntPoint& b) { |
| return a.X() == b.X() && a.Y() == b.Y(); |
| } |
| |
| constexpr bool operator!=(const IntPoint& a, const IntPoint& b) { |
| return !(a == b); |
| } |
| |
| inline IntSize ToIntSize(const IntPoint& a) { |
| return IntSize(a.X(), a.Y()); |
| } |
| |
| inline int IntPoint::DistanceSquaredToPoint(const IntPoint& point) const { |
| return ((*this) - point).DiagonalLengthSquared(); |
| } |
| |
| PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const IntPoint&); |
| PLATFORM_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, const IntPoint&); |
| |
| } // namespace blink |
| |
| WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::IntPoint); |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GEOMETRY_INT_POINT_H_ |