mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-28 19:38:13 +00:00
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
#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);
|
|
NS_IMETHOD Reflow(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
NS_IMETHOD ContentChanged(nsIPresContext* aPresContext,
|
|
nsIContent* aChild,
|
|
nsISupports* aSubContent);
|
|
|
|
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___ */
|