зеркало из https://github.com/mozilla/pjs.git
357 строки
12 KiB
C++
357 строки
12 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.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 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 nsTableCellFrame_h__
|
|
#define nsTableCellFrame_h__
|
|
|
|
#include "nsITableCellLayout.h"
|
|
#include "nscore.h"
|
|
#include "nsHTMLContainerFrame.h"
|
|
#include "nsTableRowFrame.h" // need to actually include this here to inline GetRowIndex
|
|
#include "nsStyleContext.h"
|
|
#include "nsIPercentHeightObserver.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "nsLayoutUtils.h"
|
|
#include "nsTArray.h"
|
|
|
|
class nsTableFrame;
|
|
|
|
/**
|
|
* Additional frame-state bits
|
|
*/
|
|
#define NS_TABLE_CELL_CONTENT_EMPTY NS_FRAME_STATE_BIT(31)
|
|
#define NS_TABLE_CELL_HAD_SPECIAL_REFLOW NS_FRAME_STATE_BIT(29)
|
|
#define NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT NS_FRAME_STATE_BIT(28)
|
|
|
|
/**
|
|
* nsTableCellFrame
|
|
* data structure to maintain information about a single table cell's frame
|
|
*
|
|
* NOTE: frames are not ref counted. We expose addref and release here
|
|
* so we can change that decsion in the future. Users of nsITableCellLayout
|
|
* should refcount correctly as if this object is being ref counted, though
|
|
* no actual support is under the hood.
|
|
*
|
|
* @author sclark
|
|
*/
|
|
class nsTableCellFrame : public nsHTMLContainerFrame,
|
|
public nsITableCellLayout,
|
|
public nsIPercentHeightObserver
|
|
{
|
|
public:
|
|
NS_DECL_QUERYFRAME_TARGET(nsTableCellFrame)
|
|
NS_DECL_QUERYFRAME
|
|
NS_DECL_FRAMEARENA_HELPERS
|
|
|
|
// default constructor supplied by the compiler
|
|
|
|
nsTableCellFrame(nsStyleContext* aContext);
|
|
~nsTableCellFrame();
|
|
|
|
NS_IMETHOD Init(nsIContent* aContent,
|
|
nsIFrame* aParent,
|
|
nsIFrame* aPrevInFlow);
|
|
|
|
#ifdef ACCESSIBILITY
|
|
virtual already_AddRefed<nsAccessible> CreateAccessible();
|
|
#endif
|
|
|
|
NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
PRInt32 aModType);
|
|
|
|
/** @see nsIFrame::DidSetStyleContext */
|
|
virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext);
|
|
|
|
// table cells contain a block frame which does most of the work, and
|
|
// so these functions should never be called. They assert and return
|
|
// NS_ERROR_NOT_IMPLEMENTED
|
|
NS_IMETHOD AppendFrames(nsIAtom* aListName,
|
|
nsFrameList& aFrameList);
|
|
NS_IMETHOD InsertFrames(nsIAtom* aListName,
|
|
nsIFrame* aPrevFrame,
|
|
nsFrameList& aFrameList);
|
|
NS_IMETHOD RemoveFrame(nsIAtom* aListName,
|
|
nsIFrame* aOldFrame);
|
|
|
|
virtual nsIFrame* GetContentInsertionFrame() {
|
|
return GetFirstChild(nsnull)->GetContentInsertionFrame();
|
|
}
|
|
|
|
virtual nsMargin GetUsedMargin() const;
|
|
|
|
virtual void NotifyPercentHeight(const nsHTMLReflowState& aReflowState);
|
|
|
|
virtual PRBool NeedsToObserve(const nsHTMLReflowState& aReflowState);
|
|
|
|
/** instantiate a new instance of nsTableRowFrame.
|
|
* @param aPresShell the pres shell for this frame
|
|
*
|
|
* @return the frame that was created
|
|
*/
|
|
friend nsIFrame* NS_NewTableCellFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
|
|
|
|
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists);
|
|
|
|
void PaintCellBackground(nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nsPoint aPt,
|
|
PRUint32 aFlags);
|
|
|
|
virtual nscoord GetMinWidth(nsIRenderingContext *aRenderingContext);
|
|
virtual nscoord GetPrefWidth(nsIRenderingContext *aRenderingContext);
|
|
virtual IntrinsicWidthOffsetData
|
|
IntrinsicWidthOffsets(nsIRenderingContext* aRenderingContext);
|
|
|
|
NS_IMETHOD Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
/**
|
|
* Get the "type" of the frame
|
|
*
|
|
* @see nsLayoutAtoms::tableCellFrame
|
|
*/
|
|
virtual nsIAtom* GetType() const;
|
|
|
|
virtual PRBool IsContainingBlock() const;
|
|
|
|
#ifdef DEBUG
|
|
NS_IMETHOD GetFrameName(nsAString& aResult) const;
|
|
#endif
|
|
|
|
void VerticallyAlignChild(nscoord aMaxAscent);
|
|
|
|
/*
|
|
* Get the value of vertical-align adjusted for CSS 2's rules for a
|
|
* table cell, which means the result is always
|
|
* NS_STYLE_VERTICAL_ALIGN_{TOP,MIDDLE,BOTTOM,BASELINE}.
|
|
*/
|
|
PRUint8 GetVerticalAlign() const;
|
|
|
|
PRBool HasVerticalAlignBaseline() const {
|
|
return GetVerticalAlign() == NS_STYLE_VERTICAL_ALIGN_BASELINE;
|
|
}
|
|
|
|
PRBool CellHasVisibleContent(nscoord height,
|
|
nsTableFrame* tableFrame,
|
|
nsIFrame* kidFrame);
|
|
|
|
/**
|
|
* Get the first-line baseline of the cell relative to its top border
|
|
* edge, as if the cell were vertically aligned to the top of the row.
|
|
*/
|
|
nscoord GetCellBaseline() const;
|
|
|
|
/**
|
|
* return the cell's specified row span. this is what was specified in the
|
|
* content model or in the style info, and is always >= 1.
|
|
* to get the effective row span (the actual value that applies), use GetEffectiveRowSpan()
|
|
* @see nsTableFrame::GetEffectiveRowSpan()
|
|
*/
|
|
virtual PRInt32 GetRowSpan();
|
|
|
|
// there is no set row index because row index depends on the cell's parent row only
|
|
|
|
/*---------------- nsITableCellLayout methods ------------------------*/
|
|
|
|
/**
|
|
* return the cell's starting row index (starting at 0 for the first row).
|
|
* for continued cell frames the row index is that of the cell's first-in-flow
|
|
* and the column index (starting at 0 for the first column
|
|
*/
|
|
NS_IMETHOD GetCellIndexes(PRInt32 &aRowIndex, PRInt32 &aColIndex);
|
|
|
|
/** return the mapped cell's row index (starting at 0 for the first row) */
|
|
virtual nsresult GetRowIndex(PRInt32 &aRowIndex) const;
|
|
|
|
/**
|
|
* return the cell's specified col span. this is what was specified in the
|
|
* content model or in the style info, and is always >= 1.
|
|
* to get the effective col span (the actual value that applies), use GetEffectiveColSpan()
|
|
* @see nsTableFrame::GetEffectiveColSpan()
|
|
*/
|
|
virtual PRInt32 GetColSpan();
|
|
|
|
/** return the cell's column index (starting at 0 for the first column) */
|
|
virtual nsresult GetColIndex(PRInt32 &aColIndex) const;
|
|
void SetColIndex(PRInt32 aColIndex);
|
|
|
|
/** return the available width given to this frame during its last reflow */
|
|
inline nscoord GetPriorAvailWidth();
|
|
|
|
/** set the available width given to this frame during its last reflow */
|
|
inline void SetPriorAvailWidth(nscoord aPriorAvailWidth);
|
|
|
|
/** return the desired size returned by this frame during its last reflow */
|
|
inline nsSize GetDesiredSize();
|
|
|
|
/** set the desired size returned by this frame during its last reflow */
|
|
inline void SetDesiredSize(const nsHTMLReflowMetrics & aDesiredSize);
|
|
|
|
PRBool GetContentEmpty();
|
|
void SetContentEmpty(PRBool aContentEmpty);
|
|
|
|
PRBool HasPctOverHeight();
|
|
void SetHasPctOverHeight(PRBool aValue);
|
|
|
|
nsTableCellFrame* GetNextCell() const;
|
|
|
|
virtual nsMargin* GetBorderWidth(nsMargin& aBorder) const;
|
|
|
|
virtual void PaintBackground(nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsPoint aPt,
|
|
PRUint32 aFlags);
|
|
|
|
void DecorateForSelection(nsIRenderingContext& aRenderingContext,
|
|
nsPoint aPt);
|
|
|
|
protected:
|
|
/** implement abstract method on nsHTMLContainerFrame */
|
|
virtual PRIntn GetSkipSides() const;
|
|
|
|
/**
|
|
* GetBorderOverflow says how far the cell's own borders extend
|
|
* outside its own bounds. In the separated borders model this should
|
|
* just be zero (as it is for most frames), but in the collapsed
|
|
* borders model (for which nsBCTableCellFrame overrides this virtual
|
|
* method), it considers the extents of the collapsed border.
|
|
*/
|
|
virtual nsMargin GetBorderOverflow();
|
|
|
|
friend class nsTableRowFrame;
|
|
|
|
PRUint32 mColIndex; // the starting column for this cell
|
|
|
|
nscoord mPriorAvailWidth; // the avail width during the last reflow
|
|
nsSize mDesiredSize; // the last desired width & height
|
|
};
|
|
|
|
inline nscoord nsTableCellFrame::GetPriorAvailWidth()
|
|
{ return mPriorAvailWidth;}
|
|
|
|
inline void nsTableCellFrame::SetPriorAvailWidth(nscoord aPriorAvailWidth)
|
|
{ mPriorAvailWidth = aPriorAvailWidth;}
|
|
|
|
inline nsSize nsTableCellFrame::GetDesiredSize()
|
|
{ return mDesiredSize; }
|
|
|
|
inline void nsTableCellFrame::SetDesiredSize(const nsHTMLReflowMetrics & aDesiredSize)
|
|
{
|
|
mDesiredSize.width = aDesiredSize.width;
|
|
mDesiredSize.height = aDesiredSize.height;
|
|
}
|
|
|
|
inline PRBool nsTableCellFrame::GetContentEmpty()
|
|
{
|
|
return (mState & NS_TABLE_CELL_CONTENT_EMPTY) ==
|
|
NS_TABLE_CELL_CONTENT_EMPTY;
|
|
}
|
|
|
|
inline void nsTableCellFrame::SetContentEmpty(PRBool aContentEmpty)
|
|
{
|
|
if (aContentEmpty) {
|
|
mState |= NS_TABLE_CELL_CONTENT_EMPTY;
|
|
} else {
|
|
mState &= ~NS_TABLE_CELL_CONTENT_EMPTY;
|
|
}
|
|
}
|
|
|
|
inline PRBool nsTableCellFrame::HasPctOverHeight()
|
|
{
|
|
return (mState & NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT) ==
|
|
NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT;
|
|
}
|
|
|
|
inline void nsTableCellFrame::SetHasPctOverHeight(PRBool aValue)
|
|
{
|
|
if (aValue) {
|
|
mState |= NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT;
|
|
} else {
|
|
mState &= ~NS_TABLE_CELL_HAS_PCT_OVER_HEIGHT;
|
|
}
|
|
}
|
|
|
|
// nsBCTableCellFrame
|
|
class nsBCTableCellFrame : public nsTableCellFrame
|
|
{
|
|
public:
|
|
NS_DECL_FRAMEARENA_HELPERS
|
|
|
|
nsBCTableCellFrame(nsStyleContext* aContext);
|
|
|
|
~nsBCTableCellFrame();
|
|
|
|
virtual nsIAtom* GetType() const;
|
|
|
|
virtual nsMargin GetUsedBorder() const;
|
|
virtual PRBool GetBorderRadii(nscoord aRadii[8]) const;
|
|
|
|
// Get the *inner half of the border only*, in twips.
|
|
virtual nsMargin* GetBorderWidth(nsMargin& aBorder) const;
|
|
|
|
// Get the *inner half of the border only*, in pixels.
|
|
BCPixelSize GetBorderWidth(mozilla::css::Side aSide) const;
|
|
|
|
// Set the full (both halves) width of the border
|
|
void SetBorderWidth(mozilla::css::Side aSide, BCPixelSize aPixelValue);
|
|
|
|
virtual nsMargin GetBorderOverflow();
|
|
|
|
#ifdef DEBUG
|
|
NS_IMETHOD GetFrameName(nsAString& aResult) const;
|
|
#endif
|
|
|
|
virtual void PaintBackground(nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsPoint aPt,
|
|
PRUint32 aFlags);
|
|
|
|
private:
|
|
|
|
// These are the entire width of the border (the cell edge contains only
|
|
// the inner half, per the macros in nsTablePainter.h).
|
|
BCPixelSize mTopBorder;
|
|
BCPixelSize mRightBorder;
|
|
BCPixelSize mBottomBorder;
|
|
BCPixelSize mLeftBorder;
|
|
};
|
|
|
|
#endif
|