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98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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//
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// Eric Vaughan
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// Netscape Communications
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//
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// See documentation in associated header file
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//
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#include "nsGridRowLeafFrame.h"
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#include "nsGridRowLeafLayout.h"
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#include "nsGridRow.h"
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#include "nsBoxLayoutState.h"
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#include "nsGridLayout2.h"
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already_AddRefed<nsBoxLayout> NS_NewGridRowLeafLayout();
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nsIFrame*
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NS_NewGridRowLeafFrame(nsIPresShell* aPresShell,
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nsStyleContext* aContext)
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{
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nsCOMPtr<nsBoxLayout> layout = NS_NewGridRowLeafLayout();
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return new (aPresShell) nsGridRowLeafFrame(aPresShell, aContext, false,
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layout);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsGridRowLeafFrame)
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/*
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* Our border and padding could be affected by our columns or rows.
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* Let's go check it out.
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*/
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NS_IMETHODIMP
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nsGridRowLeafFrame::GetBorderAndPadding(nsMargin& aBorderAndPadding)
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{
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// if our columns have made our padding larger add it in.
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nsresult rv = nsBoxFrame::GetBorderAndPadding(aBorderAndPadding);
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nsIGridPart* part = nsGrid::GetPartFromBox(this);
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if (!part)
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return rv;
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int32_t index = 0;
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nsGrid* grid = part->GetGrid(this, &index);
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if (!grid)
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return rv;
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bool isHorizontal = IsHorizontal();
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nsBoxLayoutState state(PresContext());
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int32_t firstIndex = 0;
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int32_t lastIndex = 0;
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nsGridRow* firstRow = nullptr;
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nsGridRow* lastRow = nullptr;
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grid->GetFirstAndLastRow(state, firstIndex, lastIndex, firstRow, lastRow, isHorizontal);
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// only the first and last rows can be affected.
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if (firstRow && firstRow->GetBox() == this) {
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nscoord top = 0;
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nscoord bottom = 0;
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grid->GetRowOffsets(state, firstIndex, top, bottom, isHorizontal);
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if (isHorizontal) {
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if (top > aBorderAndPadding.top)
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aBorderAndPadding.top = top;
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} else {
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if (top > aBorderAndPadding.left)
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aBorderAndPadding.left = top;
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}
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}
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if (lastRow && lastRow->GetBox() == this) {
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nscoord top = 0;
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nscoord bottom = 0;
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grid->GetRowOffsets(state, lastIndex, top, bottom, isHorizontal);
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if (isHorizontal) {
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if (bottom > aBorderAndPadding.bottom)
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aBorderAndPadding.bottom = bottom;
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} else {
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if (bottom > aBorderAndPadding.right)
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aBorderAndPadding.right = bottom;
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}
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}
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return rv;
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}
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