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1dc9d49936
The functions move to ColumnUtils will be used by ColumnSetWrapperFrame to implement GetPrefISize() and GetMinISize(). Also, I verify locally that non-unified build is still working by s/UNIFIED_SOURCES/SOURCES/ in layout/generic/moz.build. Differential Revision: https://phabricator.services.mozilla.com/D29614 --HG-- extra : moz-landing-system : lando
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* A namespace class for static muti-column utilities. */
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#ifndef mozilla_ColumnUtils_h
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#define mozilla_ColumnUtils_h
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#include "nsStyleCoord.h"
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class nsContainerFrame;
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namespace mozilla {
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// ColumnUtils is a namespace class containing utility functions used by
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// multi-column containers like ColumnSetWrapperFrame and nsColumnSetFrame.
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//
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class ColumnUtils final {
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public:
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// Compute used value of 'column-gap' for aFrame.
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static nscoord GetColumnGap(const nsContainerFrame* aFrame,
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nscoord aPercentageBasis);
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// Clamp used column width to a minimum of 1px.
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static nscoord ClampUsedColumnWidth(const Length& aColumnWidth);
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// Compute the intrinsic inline-size of a column container, given a non-zero
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// column-count, column gap, and column box's inline-size.
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static nscoord IntrinsicISize(uint32_t aColCount, nscoord aColGap,
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nscoord aColISize);
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};
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} // namespace mozilla
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#endif // mozilla_ColumnUtils_h
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