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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/. */
/* base class for rendering objects that do not have child lists */
#include "nsLeafFrame.h"
#include "nsPresContext.h"
using namespace mozilla;
nsLeafFrame::~nsLeafFrame()
{
}
/* virtual */ nscoord
nsLeafFrame::GetMinISize(nsRenderingContext *aRenderingContext)
{
nscoord result;
DISPLAY_MIN_WIDTH(this, result);
result = GetIntrinsicISize();
return result;
}
/* virtual */ nscoord
nsLeafFrame::GetPrefISize(nsRenderingContext *aRenderingContext)
{
nscoord result;
DISPLAY_PREF_WIDTH(this, result);
result = GetIntrinsicISize();
return result;
}
/* virtual */
LogicalSize
nsLeafFrame::ComputeAutoSize(nsRenderingContext* aRenderingContext,
WritingMode aWM,
const LogicalSize& aCBSize,
nscoord aAvailableISize,
const LogicalSize& aMargin,
const LogicalSize& aBorder,
const LogicalSize& aPadding,
ComputeSizeFlags aFlags)
{
const WritingMode wm = GetWritingMode();
LogicalSize result(wm, GetIntrinsicISize(), GetIntrinsicBSize());
return result.ConvertTo(aWM, wm);
}
void
nsLeafFrame::Reflow(nsPresContext* aPresContext,
ReflowOutput& aMetrics,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus)
{
MarkInReflow();
DO_GLOBAL_REFLOW_COUNT("nsLeafFrame");
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("enter nsLeafFrame::Reflow: aMaxSize=%d,%d",
aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight()));
NS_PRECONDITION(mState & NS_FRAME_IN_REFLOW, "frame is not in reflow");
DoReflow(aPresContext, aMetrics, aReflowInput, aStatus);
FinishAndStoreOverflow(&aMetrics);
}
void
nsLeafFrame::DoReflow(nsPresContext* aPresContext,
ReflowOutput& aMetrics,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus)
{
NS_ASSERTION(aReflowInput.ComputedWidth() != NS_UNCONSTRAINEDSIZE,
"Shouldn't have unconstrained stuff here "
"thanks to the rules of reflow");
NS_ASSERTION(NS_INTRINSICSIZE != aReflowInput.ComputedHeight(),
"Shouldn't have unconstrained stuff here "
"thanks to ComputeAutoSize");
// XXX how should border&padding effect baseline alignment?
// => descent = borderPadding.bottom for example
WritingMode wm = aReflowInput.GetWritingMode();
aMetrics.SetSize(wm, aReflowInput.ComputedSizeWithBorderPadding());
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("exit nsLeafFrame::DoReflow: size=%d,%d",
aMetrics.ISize(wm), aMetrics.BSize(wm)));
NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aMetrics);
aMetrics.SetOverflowAreasToDesiredBounds();
}
nscoord
nsLeafFrame::GetIntrinsicBSize()
{
NS_NOTREACHED("Someone didn't override Reflow or ComputeAutoSize");
return 0;
}
void
nsLeafFrame::SizeToAvailSize(const ReflowInput& aReflowInput,
ReflowOutput& aDesiredSize)
{
WritingMode wm = aReflowInput.GetWritingMode();
LogicalSize size(wm, aReflowInput.AvailableISize(), // FRAME
aReflowInput.AvailableBSize());
aDesiredSize.SetSize(wm, size);
aDesiredSize.SetOverflowAreasToDesiredBounds();
FinishAndStoreOverflow(&aDesiredSize);
}
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