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 "nsGridLayout2.h"
michael@0: #include "nsGridRowGroupLayout.h"
michael@0: #include "nsGridRow.h"
michael@0: #include "nsBox.h"
michael@0: #include "nsIScrollableFrame.h"
michael@0: #include "nsSprocketLayout.h"
michael@0: #include "nsHTMLReflowState.h"
michael@0: 
michael@0: nsresult
michael@0: NS_NewGridLayout2( nsIPresShell* aPresShell, nsBoxLayout** aNewLayout)
michael@0: {
michael@0:   *aNewLayout = new nsGridLayout2(aPresShell);
michael@0:   NS_IF_ADDREF(*aNewLayout);
michael@0: 
michael@0:   return NS_OK;
michael@0:   
michael@0: } 
michael@0: 
michael@0: nsGridLayout2::nsGridLayout2(nsIPresShell* aPresShell):nsStackLayout()
michael@0: {
michael@0: }
michael@0: 
michael@0: // static
michael@0: void
michael@0: nsGridLayout2::AddOffset(nsBoxLayoutState& aState, nsIFrame* aChild, nsSize& aSize)
michael@0: {
michael@0:   nsMargin offset;
michael@0:   GetOffset(aState, aChild, offset);
michael@0:   aSize.width += offset.left;
michael@0:   aSize.height += offset.top;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGridLayout2::Layout(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState)
michael@0: {
michael@0:   // XXX This should be set a better way!
michael@0:   mGrid.SetBox(aBox);
michael@0:   NS_ASSERTION(aBox->GetLayoutManager() == this, "setting incorrect box");
michael@0: 
michael@0:   nsresult rv = nsStackLayout::Layout(aBox, aBoxLayoutState);
michael@0: #ifdef DEBUG_grid
michael@0:   mGrid.PrintCellMap();
michael@0: #endif
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsGridLayout2::IntrinsicWidthsDirty(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState)
michael@0: {
michael@0:   nsStackLayout::IntrinsicWidthsDirty(aBox, aBoxLayoutState);
michael@0:   // XXXldb We really don't need to do all the work that NeedsRebuild
michael@0:   // does; we just need to mark intrinsic widths dirty on the
michael@0:   // (row/column)(s/-groups).
michael@0:   mGrid.NeedsRebuild(aBoxLayoutState);
michael@0: }
michael@0: 
michael@0: nsGrid*
michael@0: nsGridLayout2::GetGrid(nsIFrame* aBox, int32_t* aIndex, nsGridRowLayout* aRequestor)
michael@0: {
michael@0:   // XXX This should be set a better way!
michael@0:   mGrid.SetBox(aBox);
michael@0:   NS_ASSERTION(aBox->GetLayoutManager() == this, "setting incorrect box");
michael@0:   return &mGrid;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsGridLayout2::AddWidth(nsSize& aSize, nscoord aSize2, bool aIsHorizontal)
michael@0: {
michael@0:   nscoord& size = GET_WIDTH(aSize, aIsHorizontal);
michael@0: 
michael@0:   if (size != NS_INTRINSICSIZE) {
michael@0:     if (aSize2 == NS_INTRINSICSIZE)
michael@0:       size = NS_INTRINSICSIZE;
michael@0:     else
michael@0:       size += aSize2;
michael@0:   }
michael@0: }
michael@0: 
michael@0: nsSize
michael@0: nsGridLayout2::GetMinSize(nsIFrame* aBox, nsBoxLayoutState& aState)
michael@0: {
michael@0:   nsSize minSize = nsStackLayout::GetMinSize(aBox, aState); 
michael@0: 
michael@0:   // if there are no <rows> tags that will sum up our columns,
michael@0:   // sum up our columns here.
michael@0:   nsSize total(0,0);
michael@0:   nsIFrame* rowsBox = mGrid.GetRowsBox();
michael@0:   nsIFrame* columnsBox = mGrid.GetColumnsBox();
michael@0:   if (!rowsBox || !columnsBox) {
michael@0:     if (!rowsBox) {
michael@0:       // max height is the sum of our rows
michael@0:       int32_t rows = mGrid.GetRowCount();
michael@0:       for (int32_t i=0; i < rows; i++)
michael@0:       {
michael@0:         nscoord height = mGrid.GetMinRowHeight(aState, i, true); 
michael@0:         AddWidth(total, height, false); // AddHeight
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     if (!columnsBox) {
michael@0:       // max height is the sum of our rows
michael@0:       int32_t columns = mGrid.GetColumnCount();
michael@0:       for (int32_t i=0; i < columns; i++)
michael@0:       {
michael@0:         nscoord width = mGrid.GetMinRowHeight(aState, i, false); 
michael@0:         AddWidth(total, width, true); // AddWidth
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     AddMargin(aBox, total);
michael@0:     AddOffset(aState, aBox, total);
michael@0:     AddLargestSize(minSize, total);
michael@0:   }
michael@0:   
michael@0:   return minSize;
michael@0: }
michael@0: 
michael@0: nsSize
michael@0: nsGridLayout2::GetPrefSize(nsIFrame* aBox, nsBoxLayoutState& aState)
michael@0: {
michael@0:   nsSize pref = nsStackLayout::GetPrefSize(aBox, aState); 
michael@0: 
michael@0:   // if there are no <rows> tags that will sum up our columns,
michael@0:   // sum up our columns here.
michael@0:   nsSize total(0,0);
michael@0:   nsIFrame* rowsBox = mGrid.GetRowsBox();
michael@0:   nsIFrame* columnsBox = mGrid.GetColumnsBox();
michael@0:   if (!rowsBox || !columnsBox) {
michael@0:     if (!rowsBox) {
michael@0:       // max height is the sum of our rows
michael@0:       int32_t rows = mGrid.GetRowCount();
michael@0:       for (int32_t i=0; i < rows; i++)
michael@0:       {
michael@0:         nscoord height = mGrid.GetPrefRowHeight(aState, i, true); 
michael@0:         AddWidth(total, height, false); // AddHeight
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     if (!columnsBox) {
michael@0:       // max height is the sum of our rows
michael@0:       int32_t columns = mGrid.GetColumnCount();
michael@0:       for (int32_t i=0; i < columns; i++)
michael@0:       {
michael@0:         nscoord width = mGrid.GetPrefRowHeight(aState, i, false);
michael@0:         AddWidth(total, width, true); // AddWidth
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     AddMargin(aBox, total);
michael@0:     AddOffset(aState, aBox, total);
michael@0:     AddLargestSize(pref, total);
michael@0:   }
michael@0: 
michael@0:   return pref;
michael@0: }
michael@0: 
michael@0: nsSize
michael@0: nsGridLayout2::GetMaxSize(nsIFrame* aBox, nsBoxLayoutState& aState)
michael@0: {
michael@0:   nsSize maxSize = nsStackLayout::GetMaxSize(aBox, aState); 
michael@0: 
michael@0:   // if there are no <rows> tags that will sum up our columns,
michael@0:   // sum up our columns here.
michael@0:   nsSize total(NS_INTRINSICSIZE, NS_INTRINSICSIZE);
michael@0:   nsIFrame* rowsBox = mGrid.GetRowsBox();
michael@0:   nsIFrame* columnsBox = mGrid.GetColumnsBox();
michael@0:   if (!rowsBox || !columnsBox) {
michael@0:     if (!rowsBox) {
michael@0:       total.height = 0;
michael@0:       // max height is the sum of our rows
michael@0:       int32_t rows = mGrid.GetRowCount();
michael@0:       for (int32_t i=0; i < rows; i++)
michael@0:       {
michael@0:         nscoord height = mGrid.GetMaxRowHeight(aState, i, true); 
michael@0:         AddWidth(total, height, false); // AddHeight
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     if (!columnsBox) {
michael@0:       total.width = 0;
michael@0:       // max height is the sum of our rows
michael@0:       int32_t columns = mGrid.GetColumnCount();
michael@0:       for (int32_t i=0; i < columns; i++)
michael@0:       {
michael@0:         nscoord width = mGrid.GetMaxRowHeight(aState, i, false);
michael@0:         AddWidth(total, width, true); // AddWidth
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     AddMargin(aBox, total);
michael@0:     AddOffset(aState, aBox, total);
michael@0:     AddSmallestSize(maxSize, total);
michael@0:   }
michael@0: 
michael@0:   return maxSize;
michael@0: }
michael@0: 
michael@0: int32_t
michael@0: nsGridLayout2::BuildRows(nsIFrame* aBox, nsGridRow* aRows)
michael@0: {
michael@0:   if (aBox) {
michael@0:     aRows[0].Init(aBox, true);
michael@0:     return 1;
michael@0:   }
michael@0:   return 0;
michael@0: }
michael@0: 
michael@0: nsMargin
michael@0: nsGridLayout2::GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal)
michael@0: {
michael@0:   nsMargin margin(0,0,0,0);
michael@0:   return margin;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsGridLayout2::ChildrenInserted(nsIFrame* aBox, nsBoxLayoutState& aState,
michael@0:                                 nsIFrame* aPrevBox,
michael@0:                                 const nsFrameList::Slice& aNewChildren)
michael@0: {
michael@0:   mGrid.NeedsRebuild(aState);
michael@0: }
michael@0: 
michael@0: void
michael@0: nsGridLayout2::ChildrenAppended(nsIFrame* aBox, nsBoxLayoutState& aState,
michael@0:                                 const nsFrameList::Slice& aNewChildren)
michael@0: {
michael@0:   mGrid.NeedsRebuild(aState);
michael@0: }
michael@0: 
michael@0: void
michael@0: nsGridLayout2::ChildrenRemoved(nsIFrame* aBox, nsBoxLayoutState& aState,
michael@0:                                nsIFrame* aChildList)
michael@0: {
michael@0:   mGrid.NeedsRebuild(aState);
michael@0: }
michael@0: 
michael@0: void
michael@0: nsGridLayout2::ChildrenSet(nsIFrame* aBox, nsBoxLayoutState& aState,
michael@0:                            nsIFrame* aChildList)
michael@0: {
michael@0:   mGrid.NeedsRebuild(aState);
michael@0: }
michael@0: 
michael@0: NS_IMPL_ADDREF_INHERITED(nsGridLayout2, nsStackLayout)
michael@0: NS_IMPL_RELEASE_INHERITED(nsGridLayout2, nsStackLayout)
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN(nsGridLayout2)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIGridPart)
michael@0:   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIGridPart)
michael@0: NS_INTERFACE_MAP_END_INHERITING(nsStackLayout)