diff options
Diffstat (limited to 'gfx/src/nsRect.cpp')
-rw-r--r-- | gfx/src/nsRect.cpp | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gfx/src/nsRect.cpp b/gfx/src/nsRect.cpp new file mode 100644 index 0000000000..74ffbf0fb2 --- /dev/null +++ b/gfx/src/nsRect.cpp @@ -0,0 +1,34 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsRect.h" +#include "mozilla/gfx/Types.h" // for eSideBottom, etc +#include "mozilla/CheckedInt.h" // for CheckedInt +#include "nsDeviceContext.h" // for nsDeviceContext +#include "nsString.h" // for nsAutoString, etc +#include "nsMargin.h" // for nsMargin + +static_assert( + (int(mozilla::eSideTop) == 0) && (int(mozilla::eSideRight) == 1) && + (int(mozilla::eSideBottom) == 2) && (int(mozilla::eSideLeft) == 3), + "The mozilla::Side sequence must match the nsMargin nscoord sequence"); + +const mozilla::gfx::IntRect& GetMaxSizedIntRect() { + static const mozilla::gfx::IntRect r(0, 0, INT32_MAX, INT32_MAX); + return r; +} + +bool nsRect::Overflows() const { +#ifdef NS_COORD_IS_FLOAT + return false; +#else + mozilla::CheckedInt<int32_t> xMost = this->x; + xMost += this->width; + mozilla::CheckedInt<int32_t> yMost = this->y; + yMost += this->height; + return !xMost.isValid() || !yMost.isValid(); +#endif +} |