| /* |
| * Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved. |
| * Copyright (C) 2005 Nokia. 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 FloatRect_h |
| #define FloatRect_h |
| |
| #include "platform/geometry/FloatPoint.h" |
| #include "platform/geometry/FloatRectOutsets.h" |
| #include "third_party/skia/include/core/SkRect.h" |
| #include "wtf/Allocator.h" |
| #include "wtf/Forward.h" |
| #include "wtf/Vector.h" |
| #include <iosfwd> |
| |
| #if OS(MACOSX) |
| typedef struct CGRect CGRect; |
| |
| #ifdef __OBJC__ |
| #import <Foundation/Foundation.h> |
| #endif |
| #endif |
| |
| namespace gfx { |
| class RectF; |
| } |
| |
| namespace blink { |
| |
| class IntRect; |
| class LayoutRect; |
| class LayoutSize; |
| |
| class PLATFORM_EXPORT FloatRect { |
| DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); |
| |
| public: |
| enum ContainsMode { InsideOrOnStroke, InsideButNotOnStroke }; |
| |
| FloatRect() {} |
| FloatRect(const FloatPoint& location, const FloatSize& size) |
| : m_location(location), m_size(size) {} |
| FloatRect(float x, float y, float width, float height) |
| : m_location(FloatPoint(x, y)), m_size(FloatSize(width, height)) {} |
| FloatRect(const IntRect&); |
| explicit FloatRect(const LayoutRect&); |
| FloatRect(const SkRect&); |
| |
| static FloatRect narrowPrecision(double x, |
| double y, |
| double width, |
| double height); |
| |
| FloatPoint location() const { return m_location; } |
| FloatSize size() const { return m_size; } |
| |
| void setLocation(const FloatPoint& location) { m_location = location; } |
| void setSize(const FloatSize& size) { m_size = size; } |
| |
| float x() const { return m_location.x(); } |
| float y() const { return m_location.y(); } |
| float maxX() const { return x() + width(); } |
| float maxY() const { return y() + height(); } |
| float width() const { return m_size.width(); } |
| float height() const { return m_size.height(); } |
| |
| void setX(float x) { m_location.setX(x); } |
| void setY(float y) { m_location.setY(y); } |
| void setWidth(float width) { m_size.setWidth(width); } |
| void setHeight(float height) { m_size.setHeight(height); } |
| |
| bool isEmpty() const { return m_size.isEmpty(); } |
| bool isZero() const { return m_size.isZero(); } |
| bool isExpressibleAsIntRect() const; |
| |
| FloatPoint center() const { |
| return FloatPoint(x() + width() / 2, y() + height() / 2); |
| } |
| |
| void move(const FloatSize& delta) { m_location += delta; } |
| void move(const LayoutSize&); |
| void move(const IntSize&); |
| void moveBy(const FloatPoint& delta) { |
| m_location.move(delta.x(), delta.y()); |
| } |
| void move(float dx, float dy) { m_location.move(dx, dy); } |
| |
| void expand(const FloatSize& size) { m_size += size; } |
| void expand(float dw, float dh) { m_size.expand(dw, dh); } |
| void expand(const FloatRectOutsets& outsets) { |
| m_location.move(-outsets.left(), -outsets.top()); |
| m_size.expand(outsets.left() + outsets.right(), |
| outsets.top() + outsets.bottom()); |
| } |
| |
| void contract(const FloatSize& size) { m_size -= size; } |
| void contract(float dw, float dh) { m_size.expand(-dw, -dh); } |
| |
| void shiftXEdgeTo(float edge) { |
| float delta = edge - x(); |
| setX(edge); |
| setWidth(std::max(0.0f, width() - delta)); |
| } |
| void shiftMaxXEdgeTo(float edge) { |
| float delta = edge - maxX(); |
| setWidth(std::max(0.0f, width() + delta)); |
| } |
| void shiftYEdgeTo(float edge) { |
| float delta = edge - y(); |
| setY(edge); |
| setHeight(std::max(0.0f, height() - delta)); |
| } |
| void shiftMaxYEdgeTo(float edge) { |
| float delta = edge - maxY(); |
| setHeight(std::max(0.0f, height() + delta)); |
| } |
| |
| FloatPoint minXMinYCorner() const { return m_location; } // typically topLeft |
| FloatPoint maxXMinYCorner() const { |
| return FloatPoint(m_location.x() + m_size.width(), m_location.y()); |
| } // typically topRight |
| FloatPoint minXMaxYCorner() const { |
| return FloatPoint(m_location.x(), m_location.y() + m_size.height()); |
| } // typically bottomLeft |
| FloatPoint maxXMaxYCorner() const { |
| return FloatPoint(m_location.x() + m_size.width(), |
| m_location.y() + m_size.height()); |
| } // typically bottomRight |
| |
| bool intersects(const FloatRect&) const; |
| bool contains(const FloatRect&) const; |
| bool contains(const FloatPoint&, ContainsMode = InsideOrOnStroke) const; |
| |
| void intersect(const FloatRect&); |
| void unite(const FloatRect&); |
| void uniteEvenIfEmpty(const FloatRect&); |
| void uniteIfNonZero(const FloatRect&); |
| void extend(const FloatPoint&); |
| |
| // Note, this doesn't match what IntRect::contains(IntPoint&) does; the int |
| // version is really checking for containment of 1x1 rect, but that doesn't |
| // make sense with floats. |
| bool contains(float px, float py) const { |
| return px >= x() && px <= maxX() && py >= y() && py <= maxY(); |
| } |
| |
| void inflateX(float dx) { |
| m_location.setX(m_location.x() - dx); |
| m_size.setWidth(m_size.width() + dx + dx); |
| } |
| void inflateY(float dy) { |
| m_location.setY(m_location.y() - dy); |
| m_size.setHeight(m_size.height() + dy + dy); |
| } |
| void inflate(float d) { |
| inflateX(d); |
| inflateY(d); |
| } |
| void scale(float s) { scale(s, s); } |
| void scale(float sx, float sy); |
| |
| FloatRect transposedRect() const { |
| return FloatRect(m_location.transposedPoint(), m_size.transposedSize()); |
| } |
| |
| float squaredDistanceTo(const FloatPoint&) const; |
| |
| #if OS(MACOSX) |
| FloatRect(const CGRect&); |
| operator CGRect() const; |
| #if defined(__OBJC__) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES) |
| FloatRect(const NSRect&); |
| operator NSRect() const; |
| #endif |
| #endif |
| |
| operator SkRect() const { |
| return SkRect::MakeXYWH(x(), y(), width(), height()); |
| } |
| operator gfx::RectF() const; |
| |
| #if ENABLE(ASSERT) |
| bool mayNotHaveExactIntRectRepresentation() const; |
| #endif |
| |
| String toString() const; |
| |
| private: |
| FloatPoint m_location; |
| FloatSize m_size; |
| |
| void setLocationAndSizeFromEdges(float left, |
| float top, |
| float right, |
| float bottom) { |
| m_location.set(left, top); |
| m_size.setWidth(right - left); |
| m_size.setHeight(bottom - top); |
| } |
| }; |
| |
| inline FloatRect intersection(const FloatRect& a, const FloatRect& b) { |
| FloatRect c = a; |
| c.intersect(b); |
| return c; |
| } |
| |
| inline FloatRect unionRect(const FloatRect& a, const FloatRect& b) { |
| FloatRect c = a; |
| c.unite(b); |
| return c; |
| } |
| |
| PLATFORM_EXPORT FloatRect unionRect(const Vector<FloatRect>&); |
| |
| inline FloatRect& operator+=(FloatRect& a, const FloatRect& b) { |
| a.move(b.x(), b.y()); |
| a.setWidth(a.width() + b.width()); |
| a.setHeight(a.height() + b.height()); |
| return a; |
| } |
| |
| inline FloatRect operator+(const FloatRect& a, const FloatRect& b) { |
| FloatRect c = a; |
| c += b; |
| return c; |
| } |
| |
| inline bool operator==(const FloatRect& a, const FloatRect& b) { |
| return a.location() == b.location() && a.size() == b.size(); |
| } |
| |
| inline bool operator!=(const FloatRect& a, const FloatRect& b) { |
| return a.location() != b.location() || a.size() != b.size(); |
| } |
| |
| PLATFORM_EXPORT IntRect enclosingIntRect(const FloatRect&); |
| |
| // Returns a valid IntRect contained within the given FloatRect. |
| PLATFORM_EXPORT IntRect enclosedIntRect(const FloatRect&); |
| |
| PLATFORM_EXPORT IntRect roundedIntRect(const FloatRect&); |
| |
| // Map supplied rect from srcRect to an equivalent rect in destRect. |
| PLATFORM_EXPORT FloatRect mapRect(const FloatRect&, |
| const FloatRect& srcRect, |
| const FloatRect& destRect); |
| |
| // Redeclared here to avoid ODR issues. |
| // See platform/testing/GeometryPrinters.h. |
| void PrintTo(const FloatRect&, std::ostream*); |
| |
| } // namespace blink |
| |
| #endif |