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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /gfx/src/nsSize.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/src/nsSize.h')
-rw-r--r-- | gfx/src/nsSize.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/gfx/src/nsSize.h b/gfx/src/nsSize.h new file mode 100644 index 0000000000..21aa654877 --- /dev/null +++ b/gfx/src/nsSize.h @@ -0,0 +1,69 @@ +/* -*- 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/. */ + +#ifndef NSSIZE_H +#define NSSIZE_H + +#include "nsCoord.h" +#include "mozilla/gfx/BaseSize.h" +#include "mozilla/gfx/Point.h" + +// Maximum allowable size +#define NS_MAXSIZE nscoord_MAX + +typedef mozilla::gfx::IntSize nsIntSize; + +struct nsSize : public mozilla::gfx::BaseSize<nscoord, nsSize> { + typedef mozilla::gfx::BaseSize<nscoord, nsSize> Super; + + constexpr nsSize() : Super() {} + constexpr nsSize(nscoord aWidth, nscoord aHeight) : Super(aWidth, aHeight) {} + + inline mozilla::gfx::IntSize ScaleToNearestPixels( + float aXScale, float aYScale, nscoord aAppUnitsPerPixel) const; + inline mozilla::gfx::IntSize ToNearestPixels(nscoord aAppUnitsPerPixel) const; + + /** + * Return this size scaled to a different appunits per pixel (APP) ratio. + * @param aFromAPP the APP to scale from + * @param aToAPP the APP to scale to + */ + [[nodiscard]] inline nsSize ScaleToOtherAppUnits(int32_t aFromAPP, + int32_t aToAPP) const; +}; + +inline mozilla::gfx::IntSize nsSize::ScaleToNearestPixels( + float aXScale, float aYScale, nscoord aAppUnitsPerPixel) const { + return mozilla::gfx::IntSize( + NSToIntRoundUp(NSAppUnitsToDoublePixels(width, aAppUnitsPerPixel) * + aXScale), + NSToIntRoundUp(NSAppUnitsToDoublePixels(height, aAppUnitsPerPixel) * + aYScale)); +} + +inline mozilla::gfx::IntSize nsSize::ToNearestPixels( + nscoord aAppUnitsPerPixel) const { + return ScaleToNearestPixels(1.0f, 1.0f, aAppUnitsPerPixel); +} + +inline nsSize nsSize::ScaleToOtherAppUnits(int32_t aFromAPP, + int32_t aToAPP) const { + if (aFromAPP != aToAPP) { + nsSize size; + size.width = NSToCoordRound(NSCoordScale(width, aFromAPP, aToAPP)); + size.height = NSToCoordRound(NSCoordScale(height, aFromAPP, aToAPP)); + return size; + } + return *this; +} + +inline nsSize IntSizeToAppUnits(mozilla::gfx::IntSize aSize, + nscoord aAppUnitsPerPixel) { + return nsSize(NSIntPixelsToAppUnits(aSize.width, aAppUnitsPerPixel), + NSIntPixelsToAppUnits(aSize.height, aAppUnitsPerPixel)); +} + +#endif /* NSSIZE_H */ |