mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-04 02:57:38 +00:00
95 lines
4.0 KiB
C++
95 lines
4.0 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 nsITableLayoutStrategy_h__
|
|
#define nsITableLayoutStrategy_h__
|
|
|
|
#include "nscore.h"
|
|
#include "nsSize.h"
|
|
|
|
class nsIStyleContext;
|
|
struct nsHTMLReflowState;
|
|
class nsTableCellFrame;
|
|
class nsStyleCoord;
|
|
|
|
class nsITableLayoutStrategy
|
|
{
|
|
public:
|
|
|
|
/** call once every time any table thing changes (content, structure, or style)
|
|
* @param aMaxElementSize [OUT] if not null, the max element size is computed and returned in this param
|
|
* @param aNumCols the total number of columns in the table
|
|
* @param aComputedWidth the computed size of the table
|
|
*/
|
|
virtual PRBool Initialize(nsSize* aMaxElementSize, PRInt32 aNumCols, nscoord aComputedWidth)=0;
|
|
|
|
/** compute the max-element-size for the table
|
|
* @param aMaxElementSize [OUT] width field set to the min legal width of the table
|
|
*/
|
|
virtual void SetMaxElementSize(nsSize* aMaxElementSize)=0;
|
|
|
|
/** assign widths for each column, taking into account the table content, the effective style,
|
|
* the layout constraints, and the compatibility mode. Sets mColumnWidths as a side effect.
|
|
* @param aTableStyle the resolved style for the table
|
|
* @param aReflowState the reflow state for the calling table frame
|
|
* @param aMaxWidth the width constraint
|
|
|
|
*/
|
|
virtual PRBool BalanceColumnWidths(nsIStyleContext* aTableStyle,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nscoord aMaxWidth)=0;
|
|
|
|
/** return the computed max "natural" size of the table.
|
|
* this is the sum of the desired size of the content taking into account table
|
|
* attributes, but NOT factoring in the available size the table is laying out into.
|
|
* the actual table width in a given situation will depend on the available size
|
|
* provided by the parent (especially for percent-width tables.)
|
|
*/
|
|
virtual nscoord GetTableMaxContentWidth() const = 0;
|
|
|
|
/** return the computed minimum possible size of the table.
|
|
* this is the sum of the minimum sizes of the content taking into account table
|
|
* attributes, but NOT factoring in the available size the table is laying out into.
|
|
* the actual table width in a given situation will depend on the available size
|
|
* provided by the parent (especially for percent-width tables.)
|
|
*/
|
|
virtual nscoord GetTableMinContentWidth() const = 0;
|
|
|
|
/** return the value of the COLS attribute, used for balancing column widths */
|
|
virtual nscoord GetCOLSAttribute() const = 0;
|
|
|
|
/** return the total number of columns in the table */
|
|
virtual nscoord GetNumCols() const = 0;
|
|
|
|
// see nsTableFrame::ColumnsCanBeInvalidatedBy
|
|
virtual PRBool ColumnsCanBeInvalidatedBy(nsStyleCoord* aPrevStyleWidth,
|
|
const nsTableCellFrame& aCellFrame) const = 0;
|
|
|
|
// see nsTableFrame::ColumnsCanBeInvalidatedBy
|
|
virtual PRBool ColumnsCanBeInvalidatedBy(const nsTableCellFrame& aCellFrame,
|
|
PRBool aConsiderMinWidth = PR_FALSE) const = 0;
|
|
|
|
// see nsTableFrame::ColumnsCanBeInvalidatedBy
|
|
virtual PRBool ColumnsAreValidFor(const nsTableCellFrame& aCellFrame,
|
|
nscoord aPrevCellMin,
|
|
nscoord aPrevCellDes) const = 0;
|
|
};
|
|
|
|
#endif
|
|
|