зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
3.4 KiB
C++
85 строки
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Netscape 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/NPL/
|
|
*
|
|
* 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.org 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 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 NPL, 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 NPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
#ifndef nsLeafFrame_h___
|
|
#define nsLeafFrame_h___
|
|
|
|
#include "nsFrame.h"
|
|
|
|
/**
|
|
* Abstract class that provides simple fixed-size layout for leaf objects
|
|
* (e.g. images, form elements, etc.). Deriviations provide the implementation
|
|
* of the GetDesiredSize method. The rendering method knows how to render
|
|
* borders and backgrounds.
|
|
*/
|
|
class nsLeafFrame : public nsFrame {
|
|
public:
|
|
|
|
// nsIFrame replacements
|
|
NS_IMETHOD Paint(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsFramePaintLayer aWhichLayer,
|
|
PRUint32 aFlags = 0);
|
|
NS_IMETHOD Reflow(nsIPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
protected:
|
|
virtual ~nsLeafFrame();
|
|
|
|
/**
|
|
* Return the desired size of the frame's content area. Note that this
|
|
* method doesn't need to deal with padding or borders (the caller will
|
|
* deal with it). In addition, the ascent will be set to the height
|
|
* and the descent will be set to zero.
|
|
*/
|
|
virtual void GetDesiredSize(nsIPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsHTMLReflowMetrics& aDesiredSize) = 0;
|
|
|
|
/**
|
|
* Subroutine to add in borders and padding
|
|
*/
|
|
void AddBordersAndPadding(nsIPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
nsMargin& aBorderPadding);
|
|
};
|
|
|
|
#endif /* nsLeafFrame_h___ */
|