| /* |
| * Copyright (C) 2003, 2006, 2009 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. AND ITS CONTRIBUTORS ``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 ITS 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 IntRect_h |
| #define IntRect_h |
| |
| #include "platform/geometry/IntPoint.h" |
| #include "platform/geometry/IntRectOutsets.h" |
| #include "wtf/Allocator.h" |
| #include "wtf/Forward.h" |
| #include "wtf/Vector.h" |
| #include "wtf/VectorTraits.h" |
| |
| #if OS(MACOSX) |
| typedef struct CGRect CGRect; |
| |
| #ifdef __OBJC__ |
| #import <Foundation/Foundation.h> |
| #endif |
| #endif |
| |
| struct SkRect; |
| struct SkIRect; |
| |
| namespace gfx { |
| class Rect; |
| } |
| |
| namespace blink { |
| |
| class FloatRect; |
| class LayoutRect; |
| |
| class PLATFORM_EXPORT IntRect { |
| USING_FAST_MALLOC(IntRect); |
| |
| public: |
| IntRect() {} |
| IntRect(const IntPoint& location, const IntSize& size) |
| : m_location(location), m_size(size) {} |
| IntRect(int x, int y, int width, int height) |
| : m_location(IntPoint(x, y)), m_size(IntSize(width, height)) {} |
| |
| explicit IntRect( |
| const FloatRect&); // don't do this implicitly since it's lossy |
| explicit IntRect( |
| const LayoutRect&); // don't do this implicitly since it's lossy |
| |
| IntPoint location() const { return m_location; } |
| IntSize size() const { return m_size; } |
| |
| void setLocation(const IntPoint& location) { m_location = location; } |
| void setSize(const IntSize& size) { m_size = size; } |
| |
| int x() const { return m_location.x(); } |
| int y() const { return m_location.y(); } |
| int maxX() const { return x() + width(); } |
| int maxY() const { return y() + height(); } |
| int width() const { return m_size.width(); } |
| int height() const { return m_size.height(); } |
| |
| void setX(int x) { m_location.setX(x); } |
| void setY(int y) { m_location.setY(y); } |
| void setWidth(int width) { m_size.setWidth(width); } |
| void setHeight(int height) { m_size.setHeight(height); } |
| |
| bool isEmpty() const { return m_size.isEmpty(); } |
| |
| // NOTE: The result is rounded to integer values, and thus may be not the |
| // exact center point. |
| IntPoint center() const { |
| return IntPoint(x() + width() / 2, y() + height() / 2); |
| } |
| |
| void move(const IntSize& size) { m_location += size; } |
| void moveBy(const IntPoint& offset) { |
| m_location.move(offset.x(), offset.y()); |
| } |
| void move(int dx, int dy) { m_location.move(dx, dy); } |
| void saturatedMove(int dx, int dy) { m_location.saturatedMove(dx, dy); } |
| |
| void expand(const IntSize& size) { m_size += size; } |
| void expand(int dw, int dh) { m_size.expand(dw, dh); } |
| void expand(const IntRectOutsets& outsets) { |
| m_location.move(-outsets.left(), -outsets.top()); |
| m_size.expand(outsets.left() + outsets.right(), |
| outsets.top() + outsets.bottom()); |
| } |
| |
| void contract(const IntSize& size) { m_size -= size; } |
| void contract(int dw, int dh) { m_size.expand(-dw, -dh); } |
| |
| void shiftXEdgeTo(int edge) { |
| int delta = edge - x(); |
| setX(edge); |
| setWidth(std::max(0, width() - delta)); |
| } |
| void shiftMaxXEdgeTo(int edge) { |
| int delta = edge - maxX(); |
| setWidth(std::max(0, width() + delta)); |
| } |
| void shiftYEdgeTo(int edge) { |
| int delta = edge - y(); |
| setY(edge); |
| setHeight(std::max(0, height() - delta)); |
| } |
| void shiftMaxYEdgeTo(int edge) { |
| int delta = edge - maxY(); |
| setHeight(std::max(0, height() + delta)); |
| } |
| |
| IntPoint minXMinYCorner() const { return m_location; } // typically topLeft |
| IntPoint maxXMinYCorner() const { |
| return IntPoint(m_location.x() + m_size.width(), m_location.y()); |
| } // typically topRight |
| IntPoint minXMaxYCorner() const { |
| return IntPoint(m_location.x(), m_location.y() + m_size.height()); |
| } // typically bottomLeft |
| IntPoint maxXMaxYCorner() const { |
| return IntPoint(m_location.x() + m_size.width(), |
| m_location.y() + m_size.height()); |
| } // typically bottomRight |
| |
| bool intersects(const IntRect&) const; |
| bool contains(const IntRect&) const; |
| |
| // This checks to see if the rect contains x,y in the traditional sense. |
| // Equivalent to checking if the rect contains a 1x1 rect below and to the |
| // right of (px,py). |
| bool contains(int px, int py) const { |
| return px >= x() && px < maxX() && py >= y() && py < maxY(); |
| } |
| bool contains(const IntPoint& point) const { |
| return contains(point.x(), point.y()); |
| } |
| |
| void intersect(const IntRect&); |
| void unite(const IntRect&); |
| void uniteIfNonZero(const IntRect&); |
| |
| // Besides non-empty rects, this method also unites empty rects (as points or |
| // line segments). For example, union of (100, 100, 0x0) and (200, 200, 50x0) |
| // is (100, 100, 150x100). |
| void uniteEvenIfEmpty(const IntRect&); |
| |
| void inflateX(int dx) { |
| m_location.setX(m_location.x() - dx); |
| m_size.setWidth(m_size.width() + dx + dx); |
| } |
| void inflateY(int dy) { |
| m_location.setY(m_location.y() - dy); |
| m_size.setHeight(m_size.height() + dy + dy); |
| } |
| void inflate(int d) { |
| inflateX(d); |
| inflateY(d); |
| } |
| void scale(float s); |
| |
| IntSize differenceToPoint(const IntPoint&) const; |
| int distanceSquaredToPoint(const IntPoint& p) const { |
| return differenceToPoint(p).diagonalLengthSquared(); |
| } |
| |
| IntRect transposedRect() const { |
| return IntRect(m_location.transposedPoint(), m_size.transposedSize()); |
| } |
| |
| #if OS(MACOSX) |
| operator CGRect() const; |
| #if defined(__OBJC__) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES) |
| operator NSRect() const; |
| #endif |
| #endif |
| |
| operator SkRect() const; |
| operator SkIRect() const; |
| |
| operator gfx::Rect() const; |
| |
| String toString() const; |
| |
| private: |
| IntPoint m_location; |
| IntSize m_size; |
| }; |
| |
| inline IntRect intersection(const IntRect& a, const IntRect& b) { |
| IntRect c = a; |
| c.intersect(b); |
| return c; |
| } |
| |
| inline IntRect unionRect(const IntRect& a, const IntRect& b) { |
| IntRect c = a; |
| c.unite(b); |
| return c; |
| } |
| |
| PLATFORM_EXPORT IntRect unionRect(const Vector<IntRect>&); |
| |
| inline IntRect unionRectEvenIfEmpty(const IntRect& a, const IntRect& b) { |
| IntRect c = a; |
| c.uniteEvenIfEmpty(b); |
| return c; |
| } |
| |
| PLATFORM_EXPORT IntRect unionRectEvenIfEmpty(const Vector<IntRect>&); |
| |
| inline bool operator==(const IntRect& a, const IntRect& b) { |
| return a.location() == b.location() && a.size() == b.size(); |
| } |
| |
| inline bool operator!=(const IntRect& a, const IntRect& b) { |
| return a.location() != b.location() || a.size() != b.size(); |
| } |
| |
| #if OS(MACOSX) |
| PLATFORM_EXPORT IntRect enclosingIntRect(const CGRect&); |
| #if defined(__OBJC__) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES) |
| PLATFORM_EXPORT IntRect enclosingIntRect(const NSRect&); |
| #endif |
| #endif |
| |
| // Redeclared here to avoid ODR issues. |
| // See platform/testing/GeometryPrinters.h. |
| void PrintTo(const IntRect&, std::ostream*); |
| |
| } // namespace blink |
| |
| WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::IntRect); |
| |
| #endif // IntRect_h |