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128 lines
2.8 KiB
C++
128 lines
2.8 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 "nsGridCell.h"
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#include "nsFrame.h"
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#include "nsBox.h"
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#include "nsGridLayout2.h"
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nsGridCell::nsGridCell():mBoxInColumn(nullptr),mBoxInRow(nullptr)
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{
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MOZ_COUNT_CTOR(nsGridCell);
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}
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nsGridCell::~nsGridCell()
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{
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MOZ_COUNT_DTOR(nsGridCell);
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}
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nsSize
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nsGridCell::GetPrefSize(nsBoxLayoutState& aState)
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{
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nsSize sum(0,0);
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// take our 2 children and add them up.
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// we are as wide as the widest child plus its left offset
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// we are tall as the tallest child plus its top offset
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if (mBoxInColumn) {
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nsSize pref = mBoxInColumn->GetPrefSize(aState);
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nsBox::AddMargin(mBoxInColumn, pref);
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nsGridLayout2::AddOffset(mBoxInColumn, pref);
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nsBoxLayout::AddLargestSize(sum, pref);
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}
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if (mBoxInRow) {
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nsSize pref = mBoxInRow->GetPrefSize(aState);
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nsBox::AddMargin(mBoxInRow, pref);
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nsGridLayout2::AddOffset(mBoxInRow, pref);
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nsBoxLayout::AddLargestSize(sum, pref);
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}
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return sum;
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}
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nsSize
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nsGridCell::GetMinSize(nsBoxLayoutState& aState)
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{
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nsSize sum(0, 0);
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// take our 2 children and add them up.
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// we are as wide as the widest child plus its left offset
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// we are tall as the tallest child plus its top offset
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if (mBoxInColumn) {
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nsSize min = mBoxInColumn->GetMinSize(aState);
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nsBox::AddMargin(mBoxInColumn, min);
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nsGridLayout2::AddOffset(mBoxInColumn, min);
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nsBoxLayout::AddLargestSize(sum, min);
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}
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if (mBoxInRow) {
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nsSize min = mBoxInRow->GetMinSize(aState);
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nsBox::AddMargin(mBoxInRow, min);
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nsGridLayout2::AddOffset(mBoxInRow, min);
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nsBoxLayout::AddLargestSize(sum, min);
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}
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return sum;
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}
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nsSize
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nsGridCell::GetMaxSize(nsBoxLayoutState& aState)
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{
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nsSize sum(NS_INTRINSICSIZE, NS_INTRINSICSIZE);
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// take our 2 children and add them up.
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// we are as wide as the smallest child plus its left offset
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// we are tall as the shortest child plus its top offset
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if (mBoxInColumn) {
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nsSize max = mBoxInColumn->GetMaxSize(aState);
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nsBox::AddMargin(mBoxInColumn, max);
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nsGridLayout2::AddOffset(mBoxInColumn, max);
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nsBoxLayout::AddSmallestSize(sum, max);
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}
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if (mBoxInRow) {
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nsSize max = mBoxInRow->GetMaxSize(aState);
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nsBox::AddMargin(mBoxInRow, max);
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nsGridLayout2::AddOffset(mBoxInRow, max);
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nsBoxLayout::AddSmallestSize(sum, max);
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}
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return sum;
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}
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bool
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nsGridCell::IsCollapsed()
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{
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return ((mBoxInColumn && mBoxInColumn->IsCollapsed()) ||
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(mBoxInRow && mBoxInRow->IsCollapsed()));
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}
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