| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| #ifndef SkPathOpBounds_DEFINED |
| #define SkPathOpBounds_DEFINED |
| |
| #include "include/core/SkRect.h" |
| #include "src/pathops/SkPathOpsRect.h" |
| |
| // SkPathOpsBounds, unlike SkRect, does not consider a line to be empty. |
| struct SkPathOpsBounds : public SkRect { |
| static bool Intersects(const SkPathOpsBounds& a, const SkPathOpsBounds& b) { |
| return AlmostLessOrEqualUlps(a.fLeft, b.fRight) |
| && AlmostLessOrEqualUlps(b.fLeft, a.fRight) |
| && AlmostLessOrEqualUlps(a.fTop, b.fBottom) |
| && AlmostLessOrEqualUlps(b.fTop, a.fBottom); |
| } |
| |
| // Note that add(), unlike SkRect::join() or SkRect::growToInclude() |
| // does not treat the bounds of horizontal and vertical lines as |
| // empty rectangles. |
| void add(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom) { |
| if (left < fLeft) fLeft = left; |
| if (top < fTop) fTop = top; |
| if (right > fRight) fRight = right; |
| if (bottom > fBottom) fBottom = bottom; |
| } |
| |
| void add(const SkPathOpsBounds& toAdd) { |
| add(toAdd.fLeft, toAdd.fTop, toAdd.fRight, toAdd.fBottom); |
| } |
| |
| void add(const SkPoint& pt) { |
| if (pt.fX < fLeft) fLeft = pt.fX; |
| if (pt.fY < fTop) fTop = pt.fY; |
| if (pt.fX > fRight) fRight = pt.fX; |
| if (pt.fY > fBottom) fBottom = pt.fY; |
| } |
| |
| void add(const SkDPoint& pt) { |
| if (pt.fX < fLeft) fLeft = SkDoubleToScalar(pt.fX); |
| if (pt.fY < fTop) fTop = SkDoubleToScalar(pt.fY); |
| if (pt.fX > fRight) fRight = SkDoubleToScalar(pt.fX); |
| if (pt.fY > fBottom) fBottom = SkDoubleToScalar(pt.fY); |
| } |
| |
| bool almostContains(const SkPoint& pt) const { |
| return AlmostLessOrEqualUlps(fLeft, pt.fX) |
| && AlmostLessOrEqualUlps(pt.fX, fRight) |
| && AlmostLessOrEqualUlps(fTop, pt.fY) |
| && AlmostLessOrEqualUlps(pt.fY, fBottom); |
| } |
| |
| bool contains(const SkPoint& pt) const { |
| return fLeft <= pt.fX && fTop <= pt.fY && |
| fRight >= pt.fX && fBottom >= pt.fY; |
| } |
| |
| typedef SkRect INHERITED; |
| }; |
| |
| #endif |