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 "nsGridRowLeafFrame.h"
michael@0: #include "nsGridRowLeafLayout.h"
michael@0: #include "nsGridRow.h"
michael@0: #include "nsBoxLayoutState.h"
michael@0: #include "nsGridLayout2.h"
michael@0: 
michael@0: already_AddRefed<nsBoxLayout> NS_NewGridRowLeafLayout();
michael@0: 
michael@0: nsIFrame*
michael@0: NS_NewGridRowLeafFrame(nsIPresShell* aPresShell,
michael@0:                        nsStyleContext* aContext)
michael@0: {
michael@0:   nsCOMPtr<nsBoxLayout> layout = NS_NewGridRowLeafLayout();
michael@0:   return new (aPresShell) nsGridRowLeafFrame(aPresShell, aContext, false,
michael@0:                                              layout);
michael@0: }
michael@0: 
michael@0: NS_IMPL_FRAMEARENA_HELPERS(nsGridRowLeafFrame)
michael@0: 
michael@0: /*
michael@0:  * Our border and padding could be affected by our columns or rows.
michael@0:  * Let's go check it out.
michael@0:  */
michael@0: nsresult
michael@0: nsGridRowLeafFrame::GetBorderAndPadding(nsMargin& aBorderAndPadding)
michael@0: {
michael@0:   // if our columns have made our padding larger add it in.
michael@0:   nsresult rv = nsBoxFrame::GetBorderAndPadding(aBorderAndPadding);
michael@0: 
michael@0:   nsIGridPart* part = nsGrid::GetPartFromBox(this);
michael@0:   if (!part)
michael@0:     return rv;
michael@0:     
michael@0:   int32_t index = 0;
michael@0:   nsGrid* grid = part->GetGrid(this, &index);
michael@0: 
michael@0:   if (!grid) 
michael@0:     return rv;
michael@0: 
michael@0:   bool isHorizontal = IsHorizontal();
michael@0: 
michael@0:   nsBoxLayoutState state(PresContext());
michael@0: 
michael@0:   int32_t firstIndex = 0;
michael@0:   int32_t lastIndex = 0;
michael@0:   nsGridRow* firstRow = nullptr;
michael@0:   nsGridRow* lastRow = nullptr;
michael@0:   grid->GetFirstAndLastRow(state, firstIndex, lastIndex, firstRow, lastRow, isHorizontal);
michael@0: 
michael@0:   // only the first and last rows can be affected.
michael@0:   if (firstRow && firstRow->GetBox() == this) {
michael@0:     
michael@0:     nscoord top = 0;
michael@0:     nscoord bottom = 0;
michael@0:     grid->GetRowOffsets(state, firstIndex, top, bottom, isHorizontal);
michael@0: 
michael@0:     if (isHorizontal) {
michael@0:       if (top > aBorderAndPadding.top)
michael@0:         aBorderAndPadding.top = top;
michael@0:     } else {
michael@0:       if (top > aBorderAndPadding.left)
michael@0:         aBorderAndPadding.left = top;
michael@0:     } 
michael@0:   }
michael@0: 
michael@0:   if (lastRow && lastRow->GetBox() == this) {
michael@0:     
michael@0:     nscoord top = 0;
michael@0:     nscoord bottom = 0;
michael@0:     grid->GetRowOffsets(state, lastIndex, top, bottom, isHorizontal);
michael@0: 
michael@0:     if (isHorizontal) {
michael@0:       if (bottom > aBorderAndPadding.bottom)
michael@0:         aBorderAndPadding.bottom = bottom;
michael@0:     } else {
michael@0:       if (bottom > aBorderAndPadding.right)
michael@0:         aBorderAndPadding.right = bottom;
michael@0:     }
michael@0:     
michael@0:   }  
michael@0:   
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: