The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/src/nsSize.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,79 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#ifndef NSSIZE_H
    1.10 +#define NSSIZE_H
    1.11 +
    1.12 +#include "nsCoord.h"
    1.13 +#include "mozilla/gfx/BaseSize.h"
    1.14 +#include "mozilla/gfx/Point.h"
    1.15 +
    1.16 +// Maximum allowable size
    1.17 +#define NS_MAXSIZE nscoord_MAX
    1.18 +
    1.19 +struct nsIntSize;
    1.20 +typedef nsIntSize gfxIntSize;
    1.21 +
    1.22 +struct nsSize : public mozilla::gfx::BaseSize<nscoord, nsSize> {
    1.23 +  typedef mozilla::gfx::BaseSize<nscoord, nsSize> Super;
    1.24 +
    1.25 +  nsSize() : Super() {}
    1.26 +  nsSize(nscoord aWidth, nscoord aHeight) : Super(aWidth, aHeight) {}
    1.27 +
    1.28 +  inline nsIntSize ScaleToNearestPixels(float aXScale, float aYScale,
    1.29 +                                        nscoord aAppUnitsPerPixel) const;
    1.30 +  inline nsIntSize ToNearestPixels(nscoord aAppUnitsPerPixel) const;
    1.31 +
    1.32 +  // Converts this size from aFromAPP, an appunits per pixel ratio, to aToAPP.
    1.33 +  inline nsSize ConvertAppUnits(int32_t aFromAPP, int32_t aToAPP) const;
    1.34 +};
    1.35 +
    1.36 +struct nsIntSize : public mozilla::gfx::BaseSize<int32_t, nsIntSize> {
    1.37 +  typedef mozilla::gfx::BaseSize<int32_t, nsIntSize> Super;
    1.38 +
    1.39 +  nsIntSize() : Super() {}
    1.40 +  nsIntSize(int32_t aWidth, int32_t aHeight) : Super(aWidth, aHeight) {}
    1.41 +
    1.42 +  inline nsSize ToAppUnits(nscoord aAppUnitsPerPixel) const;
    1.43 +  mozilla::gfx::IntSize ToIntSize() const
    1.44 +  {
    1.45 +    return mozilla::gfx::IntSize(width, height);
    1.46 +  };
    1.47 +};
    1.48 +
    1.49 +inline nsIntSize
    1.50 +nsSize::ScaleToNearestPixels(float aXScale, float aYScale,
    1.51 +                             nscoord aAppUnitsPerPixel) const
    1.52 +{
    1.53 +  return nsIntSize(
    1.54 +      NSToIntRoundUp(NSAppUnitsToDoublePixels(width, aAppUnitsPerPixel) * aXScale),
    1.55 +      NSToIntRoundUp(NSAppUnitsToDoublePixels(height, aAppUnitsPerPixel) * aYScale));
    1.56 +}
    1.57 +
    1.58 +inline nsIntSize
    1.59 +nsSize::ToNearestPixels(nscoord aAppUnitsPerPixel) const
    1.60 +{
    1.61 +  return ScaleToNearestPixels(1.0f, 1.0f, aAppUnitsPerPixel);
    1.62 +}
    1.63 +
    1.64 +inline nsSize
    1.65 +nsSize::ConvertAppUnits(int32_t aFromAPP, int32_t aToAPP) const {
    1.66 +  if (aFromAPP != aToAPP) {
    1.67 +    nsSize size;
    1.68 +    size.width = NSToCoordRound(NSCoordScale(width, aFromAPP, aToAPP));
    1.69 +    size.height = NSToCoordRound(NSCoordScale(height, aFromAPP, aToAPP));
    1.70 +    return size;
    1.71 +  }
    1.72 +  return *this;
    1.73 +}
    1.74 +
    1.75 +inline nsSize
    1.76 +nsIntSize::ToAppUnits(nscoord aAppUnitsPerPixel) const
    1.77 +{
    1.78 +  return nsSize(NSIntPixelsToAppUnits(width, aAppUnitsPerPixel),
    1.79 +                NSIntPixelsToAppUnits(height, aAppUnitsPerPixel));
    1.80 +}
    1.81 +
    1.82 +#endif /* NSSIZE_H */