michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: //
michael@0: // Eric Vaughan
michael@0: // Netscape Communications
michael@0: //
michael@0: // See documentation in associated header file
michael@0: //
michael@0: 
michael@0: #include "nsGridCell.h"
michael@0: #include "nsFrame.h"
michael@0: #include "nsBox.h"
michael@0: #include "nsGridLayout2.h"
michael@0: 
michael@0: 
michael@0: nsGridCell::nsGridCell():mBoxInColumn(nullptr),mBoxInRow(nullptr)
michael@0: {
michael@0:     MOZ_COUNT_CTOR(nsGridCell);
michael@0: }                                               
michael@0:         
michael@0: nsGridCell::~nsGridCell()
michael@0: {
michael@0:     MOZ_COUNT_DTOR(nsGridCell);
michael@0: }
michael@0: 
michael@0: nsSize
michael@0: nsGridCell::GetPrefSize(nsBoxLayoutState& aState)
michael@0: {
michael@0:   nsSize sum(0,0);
michael@0: 
michael@0:   // take our 2 children and add them up.
michael@0:   // we are as wide as the widest child plus its left offset
michael@0:   // we are tall as the tallest child plus its top offset
michael@0: 
michael@0:   if (mBoxInColumn) {
michael@0:     nsSize pref = mBoxInColumn->GetPrefSize(aState);
michael@0: 
michael@0:     nsBox::AddMargin(mBoxInColumn, pref);
michael@0:     nsGridLayout2::AddOffset(aState, mBoxInColumn, pref);
michael@0: 
michael@0:     nsBoxLayout::AddLargestSize(sum, pref);
michael@0:   }
michael@0: 
michael@0:   if (mBoxInRow) {
michael@0:     nsSize pref = mBoxInRow->GetPrefSize(aState);
michael@0: 
michael@0:     nsBox::AddMargin(mBoxInRow, pref);
michael@0:     nsGridLayout2::AddOffset(aState, mBoxInRow, pref);
michael@0: 
michael@0:     nsBoxLayout::AddLargestSize(sum, pref);
michael@0:   }
michael@0: 
michael@0:   return sum;
michael@0: }
michael@0: 
michael@0: nsSize
michael@0: nsGridCell::GetMinSize(nsBoxLayoutState& aState)
michael@0: {
michael@0:   nsSize sum(0, 0);
michael@0: 
michael@0:   // take our 2 children and add them up.
michael@0:   // we are as wide as the widest child plus its left offset
michael@0:   // we are tall as the tallest child plus its top offset
michael@0: 
michael@0:   if (mBoxInColumn) {
michael@0:     nsSize min = mBoxInColumn->GetMinSize(aState);
michael@0: 
michael@0:     nsBox::AddMargin(mBoxInColumn, min);
michael@0:     nsGridLayout2::AddOffset(aState, mBoxInColumn, min);
michael@0: 
michael@0:     nsBoxLayout::AddLargestSize(sum, min);
michael@0:   }
michael@0: 
michael@0:   if (mBoxInRow) {
michael@0:     nsSize min = mBoxInRow->GetMinSize(aState);
michael@0: 
michael@0:     nsBox::AddMargin(mBoxInRow, min);
michael@0:     nsGridLayout2::AddOffset(aState, mBoxInRow, min);
michael@0: 
michael@0:     nsBoxLayout::AddLargestSize(sum, min);
michael@0:   }
michael@0: 
michael@0:   return sum;
michael@0: }
michael@0: 
michael@0: nsSize
michael@0: nsGridCell::GetMaxSize(nsBoxLayoutState& aState)
michael@0: {
michael@0:   nsSize sum(NS_INTRINSICSIZE, NS_INTRINSICSIZE);
michael@0: 
michael@0:   // take our 2 children and add them up.
michael@0:   // we are as wide as the smallest child plus its left offset
michael@0:   // we are tall as the shortest child plus its top offset
michael@0: 
michael@0:   if (mBoxInColumn) {
michael@0:     nsSize max = mBoxInColumn->GetMaxSize(aState);
michael@0:  
michael@0:     nsBox::AddMargin(mBoxInColumn, max);
michael@0:     nsGridLayout2::AddOffset(aState, mBoxInColumn, max);
michael@0: 
michael@0:     nsBoxLayout::AddSmallestSize(sum, max);
michael@0:   }
michael@0: 
michael@0:   if (mBoxInRow) {
michael@0:     nsSize max = mBoxInRow->GetMaxSize(aState);
michael@0: 
michael@0:     nsBox::AddMargin(mBoxInRow, max);
michael@0:     nsGridLayout2::AddOffset(aState, mBoxInRow, max);
michael@0: 
michael@0:     nsBoxLayout::AddSmallestSize(sum, max);
michael@0:   }
michael@0: 
michael@0:   return sum;
michael@0: }
michael@0: 
michael@0: 
michael@0: bool
michael@0: nsGridCell::IsCollapsed()
michael@0: {
michael@0:   return ((mBoxInColumn && mBoxInColumn->IsCollapsed()) ||
michael@0:           (mBoxInRow && mBoxInRow->IsCollapsed()));
michael@0: }
michael@0: 
michael@0: