gecko/layout/xul/base/src/nsIBoxLayout.h

82 lines
3.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsIBoxLayout_h___
#define nsIBoxLayout_h___
#include "nsISupports.h"
#include "nsIFrame.h"
class nsBoxLayout;
class nsBoxLayoutState;
class nsIRenderingContext;
struct nsRect;
// 6a529924-c73d-4fae-af7a-0e8084e701d5
#define NS_IBOX_LAYOUT_IID \
{ 0x6a529924, 0xc73d, 0x4fae, \
{ 0xaf, 0x7a, 0x0e, 0x80, 0x84, 0xe7, 0x01, 0xd5 } }
class nsIBoxLayout : public nsISupports {
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IBOX_LAYOUT_IID)
NS_IMETHOD Layout(nsIBox* aBox, nsBoxLayoutState& aState)=0;
virtual nsSize GetPrefSize(nsIBox* aBox, nsBoxLayoutState& aBoxLayoutState)=0;
virtual nsSize GetMinSize(nsIBox* aBox, nsBoxLayoutState& aBoxLayoutState)=0;
virtual nsSize GetMaxSize(nsIBox* aBox, nsBoxLayoutState& aBoxLayoutState)=0;
virtual nscoord GetAscent(nsIBox* aBox, nsBoxLayoutState& aBoxLayoutState)=0;
// FIXME: Bug 507416. The Children* notifications don't actually
// use all those arguments. Can we just simplify the signatures?
virtual void ChildrenInserted(nsIBox* aBox, nsBoxLayoutState& aState,
nsIBox* aPrevBox,
const nsFrameList::Slice& aNewChildren)=0;
virtual void ChildrenAppended(nsIBox* aBox, nsBoxLayoutState& aState,
const nsFrameList::Slice& aNewChildren)=0;
virtual void ChildrenRemoved(nsIBox* aBox, nsBoxLayoutState& aState, nsIBox* aChildList)=0;
virtual void ChildrenSet(nsIBox* aBox, nsBoxLayoutState& aState, nsIBox* aChildList)=0;
virtual void IntrinsicWidthsDirty(nsIBox* aBox, nsBoxLayoutState& aState)=0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIBoxLayout, NS_IBOX_LAYOUT_IID)
#endif