gecko-dev/layout/generic/nsLeafFrame.cpp

64 строки
2.1 KiB
C++

/* -*- 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/. */
/* base class for rendering objects that do not have child lists */
#include "nsLeafFrame.h"
#include "mozilla/PresShell.h"
#include "nsPresContext.h"
using namespace mozilla;
nsLeafFrame::~nsLeafFrame() = default;
/* virtual */
void nsLeafFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) {
DO_GLOBAL_REFLOW_COUNT_DSP("nsLeafFrame");
DisplayBorderBackgroundOutline(aBuilder, aLists);
}
/* virtual */
nscoord nsLeafFrame::GetMinISize(gfxContext* aRenderingContext) {
nscoord result;
DISPLAY_MIN_INLINE_SIZE(this, result);
result = GetIntrinsicISize();
return result;
}
/* virtual */
nscoord nsLeafFrame::GetPrefISize(gfxContext* aRenderingContext) {
nscoord result;
DISPLAY_PREF_INLINE_SIZE(this, result);
result = GetIntrinsicISize();
return result;
}
/* virtual */
LogicalSize nsLeafFrame::ComputeAutoSize(
gfxContext* aRenderingContext, WritingMode aWM, const LogicalSize& aCBSize,
nscoord aAvailableISize, const LogicalSize& aMargin,
const LogicalSize& aBorderPadding, const StyleSizeOverrides& aSizeOverrides,
ComputeSizeFlags aFlags) {
const WritingMode wm = GetWritingMode();
LogicalSize result(wm, GetIntrinsicISize(), GetIntrinsicBSize());
return result.ConvertTo(aWM, wm);
}
nscoord nsLeafFrame::GetIntrinsicBSize() {
MOZ_ASSERT_UNREACHABLE("Someone didn't override Reflow or ComputeAutoSize");
return 0;
}
void nsLeafFrame::SizeToAvailSize(const ReflowInput& aReflowInput,
ReflowOutput& aDesiredSize) {
aDesiredSize.SetSize(aReflowInput.GetWritingMode(),
aReflowInput.AvailableSize());
aDesiredSize.SetOverflowAreasToDesiredBounds();
FinishAndStoreOverflow(&aDesiredSize, aReflowInput.mStyleDisplay);
}