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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 NS_SIDE_BOTTOM, 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(NS_SIDE_TOP) == 0) &&
(int(NS_SIDE_RIGHT) == 1) &&
(int(NS_SIDE_BOTTOM) == 2) &&
(int(NS_SIDE_LEFT) == 3),
"The mozilla::css::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
}
#ifdef DEBUG
// Diagnostics
FILE* operator<<(FILE* out, const nsRect& rect)
{
nsAutoString tmp;
// Output the coordinates in fractional pixels so they're easier to read
tmp.Append('{');
tmp.AppendFloat(NSAppUnitsToFloatPixels(rect.x,
nsDeviceContext::AppUnitsPerCSSPixel()));
tmp.AppendLiteral(", ");
tmp.AppendFloat(NSAppUnitsToFloatPixels(rect.y,
nsDeviceContext::AppUnitsPerCSSPixel()));
tmp.AppendLiteral(", ");
tmp.AppendFloat(NSAppUnitsToFloatPixels(rect.width,
nsDeviceContext::AppUnitsPerCSSPixel()));
tmp.AppendLiteral(", ");
tmp.AppendFloat(NSAppUnitsToFloatPixels(rect.height,
nsDeviceContext::AppUnitsPerCSSPixel()));
tmp.Append('}');
fputs(NS_LossyConvertUTF16toASCII(tmp).get(), out);
return out;
}
#endif // DEBUG
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