The Tor Browser / file comparison
comparison: layout/xul/grid/nsGridRowGroupFrame.cpp
layout/xul/grid/nsGridRowGroupFrame.cpp
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
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| -1:000000000000 | 0:9d19bdb657c9 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 // | |
| 7 // Eric Vaughan | |
| 8 // Netscape Communications | |
| 9 // | |
| 10 // See documentation in associated header file | |
| 11 // | |
| 12 | |
| 13 #include "nsGridRowGroupFrame.h" | |
| 14 #include "nsGridRowLeafLayout.h" | |
| 15 #include "nsGridRow.h" | |
| 16 #include "nsBoxLayoutState.h" | |
| 17 #include "nsGridLayout2.h" | |
| 18 | |
| 19 already_AddRefed<nsBoxLayout> NS_NewGridRowGroupLayout(); | |
| 20 | |
| 21 nsIFrame* | |
| 22 NS_NewGridRowGroupFrame(nsIPresShell* aPresShell, | |
| 23 nsStyleContext* aContext) | |
| 24 { | |
| 25 nsCOMPtr<nsBoxLayout> layout = NS_NewGridRowGroupLayout(); | |
| 26 return new (aPresShell) nsGridRowGroupFrame(aPresShell, aContext, layout); | |
| 27 } | |
| 28 | |
| 29 NS_IMPL_FRAMEARENA_HELPERS(nsGridRowGroupFrame) | |
| 30 | |
| 31 | |
| 32 /** | |
| 33 * This is redefined because row groups have a funny property. If they are flexible | |
| 34 * then their flex must be equal to the sum of their children's flexes. | |
| 35 */ | |
| 36 nscoord | |
| 37 nsGridRowGroupFrame::GetFlex(nsBoxLayoutState& aState) | |
| 38 { | |
| 39 // if we are flexible out flexibility is determined by our columns. | |
| 40 // so first get the our flex. If not 0 then our flex is the sum of | |
| 41 // our columns flexes. | |
| 42 | |
| 43 if (!DoesNeedRecalc(mFlex)) | |
| 44 return mFlex; | |
| 45 | |
| 46 if (nsBoxFrame::GetFlex(aState) == 0) | |
| 47 return 0; | |
| 48 | |
| 49 // ok we are flexible add up our children | |
| 50 nscoord totalFlex = 0; | |
| 51 nsIFrame* child = GetChildBox(); | |
| 52 while (child) | |
| 53 { | |
| 54 totalFlex += child->GetFlex(aState); | |
| 55 child = child->GetNextBox(); | |
| 56 } | |
| 57 | |
| 58 mFlex = totalFlex; | |
| 59 | |
| 60 return totalFlex; | |
| 61 } | |
| 62 | |
| 63 |
