1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/xul/nsStackLayout.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,56 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/**
1.10 +
1.11 + Eric D Vaughan
1.12 + A frame that can have multiple children. Only one child may be displayed at one time. So the
1.13 + can be flipped though like a deck of cards.
1.14 +
1.15 +**/
1.16 +
1.17 +#ifndef nsStackLayout_h___
1.18 +#define nsStackLayout_h___
1.19 +
1.20 +#include "mozilla/Attributes.h"
1.21 +#include "nsBoxLayout.h"
1.22 +#include "nsCOMPtr.h"
1.23 +#include "nsCoord.h"
1.24 +
1.25 +class nsIPresShell;
1.26 +
1.27 +nsresult NS_NewStackLayout(nsIPresShell* aPresShell, nsCOMPtr<nsBoxLayout>& aNewLayout);
1.28 +
1.29 +class nsStackLayout : public nsBoxLayout
1.30 +{
1.31 +public:
1.32 +
1.33 + friend nsresult NS_NewStackLayout(nsIPresShell* aPresShell, nsCOMPtr<nsBoxLayout>& aNewLayout);
1.34 + static void Shutdown();
1.35 +
1.36 + nsStackLayout();
1.37 +
1.38 + NS_IMETHOD Layout(nsIFrame* aBox, nsBoxLayoutState& aState) MOZ_OVERRIDE;
1.39 +
1.40 + virtual nsSize GetPrefSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.41 + virtual nsSize GetMinSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.42 + virtual nsSize GetMaxSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.43 + virtual nscoord GetAscent(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.44 +
1.45 + // get the child offsets for aChild and set them in aMargin. Returns a
1.46 + // bitfield mask of the SPECIFIED_LEFT, SPECIFIED_RIGHT, SPECIFIED_TOP and
1.47 + // SPECIFIED_BOTTOM offsets indicating which sides have been specified by
1.48 + // attributes.
1.49 + static uint8_t GetOffset(nsBoxLayoutState& aState, nsIFrame* aChild, nsMargin& aMargin);
1.50 +
1.51 +private:
1.52 + static nsBoxLayout* gInstance;
1.53 +
1.54 +}; // class nsStackLayout
1.55 +
1.56 +
1.57 +
1.58 +#endif
1.59 +
