nsRect.cpp (1221B)
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 #include "nsRect.h" 8 #include "mozilla/gfx/Types.h" // for eSideBottom, etc 9 #include "mozilla/CheckedInt.h" // for CheckedInt 10 #include "nsDeviceContext.h" // for nsDeviceContext 11 #include "nsString.h" // for nsAutoString, etc 12 #include "nsMargin.h" // for nsMargin 13 14 static_assert( 15 (int(mozilla::eSideTop) == 0) && (int(mozilla::eSideRight) == 1) && 16 (int(mozilla::eSideBottom) == 2) && (int(mozilla::eSideLeft) == 3), 17 "The mozilla::Side sequence must match the nsMargin nscoord sequence"); 18 19 const mozilla::gfx::IntRect& GetMaxSizedIntRect() { 20 static const mozilla::gfx::IntRect r(0, 0, INT32_MAX, INT32_MAX); 21 return r; 22 } 23 24 bool nsRect::Overflows() const { 25 mozilla::CheckedInt<int32_t> xMost = this->x; 26 xMost += this->width; 27 mozilla::CheckedInt<int32_t> yMost = this->y; 28 yMost += this->height; 29 return !xMost.isValid() || !yMost.isValid(); 30 }