gfx/src/nsRectAbsolute.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef NSRECTABSOLUTE_H
   8 #define NSRECTABSOLUTE_H
   9
  10 #include "mozilla/gfx/RectAbsolute.h"
  11 #include "nsCoord.h"
  12 #include "nsMargin.h"
  13 #include "nsRect.h"
  14
  15 struct nsRectAbsolute
  16     : public mozilla::gfx::BaseRectAbsolute<nscoord, nsRectAbsolute, nsPoint,
  17                                             nsRect> {
  18   typedef mozilla::gfx::BaseRectAbsolute<nscoord, nsRectAbsolute, nsPoint,
  19                                          nsRect>
  20       Super;
  21
  22   nsRectAbsolute() {}
  23   nsRectAbsolute(nscoord aX1, nscoord aY1, nscoord aX2, nscoord aY2)
  24       : Super(aX1, aY1, aX2, aY2) {}
  25
  26   MOZ_ALWAYS_INLINE nscoord SafeWidth() const {
  27     int64_t width = right;
  28     width -= left;
  29     return nscoord(
  30         std::min<int64_t>(std::numeric_limits<nscoord>::max(), width));
  31   }
  32   MOZ_ALWAYS_INLINE nscoord SafeHeight() const {
  33     int64_t height = bottom;
  34     height -= top;
  35     return nscoord(
  36         std::min<int64_t>(std::numeric_limits<nscoord>::max(), height));
  37   }
  38
  39   nsRect ToNSRect() const {
  40     return nsRect(left, top, nscoord(SafeWidth()), nscoord(SafeHeight()));
  41   }
  42
  43   [[nodiscard]] nsRectAbsolute UnsafeUnion(const nsRectAbsolute& aRect) const {
  44     return Super::Union(aRect);
  45   }
  46
  47   void Inflate(const nsMargin& aMargin) {
  48     left -= aMargin.left;
  49     top -= aMargin.top;
  50     right += aMargin.right;
  51     bottom += aMargin.bottom;
  52   }
  53 };
  54
  55 #endif /* NSRECTABSOLUTE_H */