c34508750f
1. cellmap couldn't properly delete CellData because definition was unavailable 2. optimized table cells made taller wouldn't shrink when they should because we were not remembering the previous desired height of the cell. 3. rows were placing cells on the left edge, and not adding in the left margin.
632 lines
19 KiB
C++
632 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsTableCellFrame.h"
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#include "nsCellLayoutData.h"
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#include "nsBodyFrame.h"
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#include "nsIReflowCommand.h"
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#include "nsIStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsIRenderingContext.h"
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#include "nsCSSRendering.h"
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#include "nsIContent.h"
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#include "nsIContentDelegate.h"
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#include "nsCSSLayout.h"
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#include "nsHTMLValue.h"
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#include "nsHTMLAtoms.h"
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#include "nsHTMLIIDs.h"
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#include "nsIPtr.h"
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#include "nsIView.h"
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// dependancy on content
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#include "nsHTMLTagContent.h"
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NS_DEF_PTR(nsIStyleContext);
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const nsIID kTableCellFrameCID = NS_TABLECELLFRAME_CID;
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#ifdef NS_DEBUG
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static PRBool gsDebug = PR_FALSE;
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static PRBool gsDebugNT = PR_FALSE;
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//#define NOISY_STYLE
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//#define NOISY_FLOW
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#else
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static const PRBool gsDebug = PR_FALSE;
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static const PRBool gsDebugNT = PR_FALSE;
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#endif
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/**
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*/
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nsTableCellFrame::nsTableCellFrame(nsIContent* aContent,
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nsIFrame* aParentFrame)
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: nsContainerFrame(aContent, aParentFrame),
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mCellLayoutData(nsnull)
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{
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mRowSpan=1;
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mColSpan=1;
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mColIndex=0;
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mPriorAvailWidth=0;
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mPriorDesiredSize.width=0;
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mPriorDesiredSize.height=0;
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}
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nsTableCellFrame::~nsTableCellFrame()
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{
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if (nsnull!=mCellLayoutData)
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delete mCellLayoutData;
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}
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NS_METHOD nsTableCellFrame::Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect)
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{
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const nsStyleDisplay* disp =
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(const nsStyleDisplay*)mStyleContext->GetStyleData(eStyleStruct_Display);
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if (disp->mVisible) {
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const nsStyleColor* myColor =
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(const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color);
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const nsStyleSpacing* mySpacing =
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(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
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NS_ASSERTION(nsnull!=myColor, "bad style color");
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NS_ASSERTION(nsnull!=mySpacing, "bad style spacing");
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nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this,
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aDirtyRect, mRect, *myColor);
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this,
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aDirtyRect, mRect, *mySpacing, 0);
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}
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// for debug...
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if (nsIFrame::GetShowFrameBorders()) {
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aRenderingContext.SetColor(NS_RGB(0,128,128));
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aRenderingContext.DrawRect(0, 0, mRect.width, mRect.height);
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}
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PaintChildren(aPresContext, aRenderingContext, aDirtyRect);
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return NS_OK;
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}
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/**
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*
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* Align the cell's child frame within the cell
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*
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**/
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void nsTableCellFrame::VerticallyAlignChild(nsIPresContext* aPresContext)
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{
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const nsStyleSpacing* spacing =
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(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
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const nsStyleText* textStyle =
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(const nsStyleText*)mStyleContext->GetStyleData(eStyleStruct_Text);
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nsMargin borderPadding;
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spacing->CalcBorderPaddingFor(this, borderPadding);
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nscoord topInset = borderPadding.top;
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nscoord bottomInset = borderPadding.bottom;
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PRUint8 verticalAlignFlags = NS_STYLE_VERTICAL_ALIGN_MIDDLE;
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if (textStyle->mVerticalAlign.GetUnit() == eStyleUnit_Enumerated) {
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verticalAlignFlags = textStyle->mVerticalAlign.GetIntValue();
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}
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nscoord height = mRect.height;
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nsRect kidRect;
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mFirstChild->GetRect(kidRect);
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nscoord childHeight = kidRect.height;
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// Vertically align the child
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nscoord kidYTop = 0;
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switch (verticalAlignFlags)
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{
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case NS_STYLE_VERTICAL_ALIGN_BASELINE:
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// Align the child's baseline at the max baseline
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//kidYTop = aMaxAscent - kidAscent;
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break;
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case NS_STYLE_VERTICAL_ALIGN_TOP:
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// Align the top of the child frame with the top of the box,
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// minus the top padding
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kidYTop = topInset;
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break;
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case NS_STYLE_VERTICAL_ALIGN_BOTTOM:
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kidYTop = height - childHeight - bottomInset;
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break;
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default:
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case NS_STYLE_VERTICAL_ALIGN_MIDDLE:
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kidYTop = height/2 - childHeight/2;
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}
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mFirstChild->MoveTo(kidRect.x, kidYTop);
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}
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void nsTableCellFrame::CreatePsuedoFrame(nsIPresContext* aPresContext)
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{
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// Do we have a prev-in-flow?
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if (nsnull == mPrevInFlow) {
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// No, create a column pseudo frame
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nsBodyFrame::NewFrame(&mFirstChild, mContent, this);
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mChildCount = 1;
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// Resolve style and set the style context
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nsIStyleContext* styleContext =
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aPresContext->ResolveStyleContextFor(mContent, this); // styleContext: ADDREF++
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mFirstChild->SetStyleContext(aPresContext,styleContext);
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NS_RELEASE(styleContext); // styleContext: ADDREF--
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} else {
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nsTableCellFrame* prevFrame = (nsTableCellFrame *)mPrevInFlow;
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nsIFrame* prevPseudoFrame = prevFrame->mFirstChild;
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NS_ASSERTION(prevFrame->ChildIsPseudoFrame(prevPseudoFrame), "bad previous pseudo-frame");
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// Create a continuing column
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nsIStyleContext* kidSC;
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prevPseudoFrame->GetStyleContext(aPresContext, kidSC);
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prevPseudoFrame->CreateContinuingFrame(aPresContext, this, kidSC, mFirstChild);
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NS_RELEASE(kidSC);
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mChildCount = 1;
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}
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}
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/*
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* Should this be performanced tuned? This is called
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* in resize/reflow. Maybe we should cache the table
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* frame in the table cell frame.
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*
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*/
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nsTableFrame* nsTableCellFrame::GetTableFrame()
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{
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nsIFrame* frame = nsnull;
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nsresult result;
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result = GetContentParent(frame); // Get RowFrame
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if ((result == NS_OK) && (frame != nsnull))
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frame->GetContentParent(frame); // Get RowGroupFrame
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if ((result == NS_OK) && (frame != nsnull))
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frame->GetContentParent(frame); // Get TableFrame
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return (nsTableFrame*)frame;
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}
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/**
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*/
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NS_METHOD nsTableCellFrame::Reflow(nsIPresContext* aPresContext,
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nsReflowMetrics& aDesiredSize,
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const nsReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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NS_PRECONDITION(nsnull!=aPresContext, "bad arg");
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#ifdef NS_DEBUG
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//PreReflowCheck();
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#endif
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// Initialize out parameter
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if (nsnull != aDesiredSize.maxElementSize) {
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aDesiredSize.maxElementSize->width = 0;
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aDesiredSize.maxElementSize->height = 0;
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}
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aStatus = NS_FRAME_COMPLETE;
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if (PR_TRUE==gsDebug || PR_TRUE==gsDebugNT)
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printf("%p nsTableCellFrame::Reflow: maxSize=%d,%d\n",
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this, aReflowState.maxSize.width, aReflowState.maxSize.height);
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mFirstContentOffset = mLastContentOffset = 0;
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nsSize availSize(aReflowState.maxSize);
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nsSize maxElementSize;
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nsSize *pMaxElementSize = aDesiredSize.maxElementSize;
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if (NS_UNCONSTRAINEDSIZE==aReflowState.maxSize.width)
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pMaxElementSize = &maxElementSize;
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nscoord x = 0;
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// SEC: what about ascent and decent???
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// Compute the insets (sum of border and padding)
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const nsStyleSpacing* spacing =
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(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
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nsMargin borderPadding;
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spacing->CalcBorderPaddingFor(this, borderPadding);
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nscoord topInset = borderPadding.top;
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nscoord rightInset = borderPadding.right;
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nscoord bottomInset = borderPadding.bottom;
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nscoord leftInset = borderPadding.left;
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// Get the margin information, available space should
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// be reduced accordingly
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nsMargin margin(0,0,0,0);
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nsTableFrame* tableFrame = GetTableFrame();
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tableFrame->GetCellMarginData(this,margin);
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mLastContentIsComplete = PR_TRUE;
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// get frame, creating one if needed
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if (nsnull==mFirstChild)
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{
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CreatePsuedoFrame(aPresContext);
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}
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// reduce available space by insets, if we're in a constrained situation
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if (NS_UNCONSTRAINEDSIZE!=availSize.width)
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availSize.width -= leftInset+rightInset;
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if (NS_UNCONSTRAINEDSIZE!=availSize.height)
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availSize.height -= topInset+bottomInset+margin.top+margin.bottom;
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// Try to reflow the child into the available space. It might not
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// fit or might need continuing.
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if (availSize.height < 0)
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availSize.height = 1;
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nsSize maxKidElementSize;
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if (gsDebug==PR_TRUE)
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printf(" nsTableCellFrame::ResizeReflow calling ReflowChild with availSize=%d,%d\n",
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availSize.width, availSize.height);
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nsReflowMetrics kidSize(pMaxElementSize);
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kidSize.width=kidSize.height=kidSize.ascent=kidSize.descent=0;
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SetPriorAvailWidth(aReflowState.maxSize.width);
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nsReflowState kidReflowState(mFirstChild, aReflowState, availSize);
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mFirstChild->WillReflow(*aPresContext);
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mFirstChild->MoveTo(leftInset, topInset);
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aStatus = ReflowChild(mFirstChild, aPresContext, kidSize, kidReflowState);
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SetPriorDesiredSize(kidSize);
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if (PR_TRUE==gsDebug || PR_TRUE==gsDebugNT)
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{
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if (nsnull!=pMaxElementSize)
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printf(" %p cellFrame child returned desiredSize=%d,%d,\
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and maxElementSize=%d,%d\n",
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this, kidSize.width, kidSize.height,
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pMaxElementSize->width, pMaxElementSize->height);
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else
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printf(" %p cellFrame child returned desiredSize=%d,%d,\
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and maxElementSize=nsnull\n",
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this, kidSize.width, kidSize.height);
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}
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SetFirstContentOffset(mFirstChild);
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SetLastContentOffset(mFirstChild);
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// Place the child
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mFirstChild->SetRect(nsRect(leftInset, topInset,
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kidSize.width, kidSize.height));
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if (NS_FRAME_IS_NOT_COMPLETE(aStatus)) {
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// If the child didn't finish layout then it means that it used
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// up all of our available space (or needs us to split).
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mLastContentIsComplete = PR_FALSE;
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}
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// Return our size and our result
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// first, compute the height
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// the height can be set w/o being restricted by aMaxSize.height
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nscoord cellHeight = kidSize.height;
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if (NS_UNCONSTRAINEDSIZE!=aReflowState.maxSize.height)
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{
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cellHeight += topInset + bottomInset;
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}
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if (PR_TRUE==gsDebugNT)
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printf(" %p cellFrame height set to %d from kidSize=%d and insets %d,%d\n",
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this, cellHeight, kidSize.height, topInset, bottomInset);
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// next determine the cell's width
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nscoord cellWidth = kidSize.width; // at this point, we've factored in the cell's style attributes
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cellWidth += leftInset + rightInset; // factor in insets
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// Nav4 hack for 0 width cells. If the cell has any content, it must have a desired width of at least 1
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/*
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if (0==cellWidth)
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{
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PRInt32 childCount;
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mFirstChild->ChildCount(childCount);
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if (0!=childCount)
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{
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nsIFrame *grandChild;
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mFirstChild->FirstChild(grandChild);
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grandChild->ChildCount(childCount);
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if (0!=childCount)
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{
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cellWidth=1;
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if (nsnull!=aDesiredSize.maxElementSize && 0==pMaxElementSize->width)
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pMaxElementSize->width=1;
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}
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}
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}
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*/
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// end Nav4 hack for 0 width cells
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// set the cell's desired size and max element size
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aDesiredSize.width = cellWidth;
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aDesiredSize.height = cellHeight;
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aDesiredSize.ascent = topInset;
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aDesiredSize.descent = bottomInset;
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if (nsnull!=aDesiredSize.maxElementSize)
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{
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*aDesiredSize.maxElementSize = *pMaxElementSize;
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aDesiredSize.maxElementSize->height += topInset + bottomInset;
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aDesiredSize.maxElementSize->width += leftInset + rightInset;
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}
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if (PR_TRUE==gsDebug || PR_TRUE==gsDebugNT)
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printf(" %p cellFrame returning aDesiredSize=%d,%d\n",
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this, aDesiredSize.width, aDesiredSize.height);
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#ifdef NS_DEBUG
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//PostReflowCheck(result);
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#endif
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return NS_OK;
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}
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NS_METHOD
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nsTableCellFrame::CreateContinuingFrame(nsIPresContext* aPresContext,
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nsIFrame* aParent,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aContinuingFrame)
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{
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nsTableCellFrame* cf = new nsTableCellFrame(mContent, aParent);
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if (nsnull == cf) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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PrepareContinuingFrame(aPresContext, aParent, aStyleContext, cf);
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aContinuingFrame = cf;
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return NS_OK;
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}
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/**
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*
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* Update the border style to map to the HTML border style
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*
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*/
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void nsTableCellFrame::MapHTMLBorderStyle(nsIPresContext* aPresContext, nsStyleSpacing& aSpacingStyle, nscoord aBorderWidth)
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{
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nsStyleCoord width;
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width.SetCoordValue(aBorderWidth);
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aSpacingStyle.mBorder.SetTop(width);
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aSpacingStyle.mBorder.SetLeft(width);
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aSpacingStyle.mBorder.SetBottom(width);
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aSpacingStyle.mBorder.SetRight(width);
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aSpacingStyle.mBorderStyle[NS_SIDE_TOP] = NS_STYLE_BORDER_STYLE_SOLID;
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aSpacingStyle.mBorderStyle[NS_SIDE_LEFT] = NS_STYLE_BORDER_STYLE_SOLID;
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aSpacingStyle.mBorderStyle[NS_SIDE_BOTTOM] = NS_STYLE_BORDER_STYLE_SOLID;
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aSpacingStyle.mBorderStyle[NS_SIDE_RIGHT] = NS_STYLE_BORDER_STYLE_SOLID;
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nsTableFrame* tableFrame = GetTableFrame();
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nsIStyleContext* styleContext = nsnull;
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tableFrame->GetStyleContext(aPresContext,styleContext);
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const nsStyleColor* colorData = (const nsStyleColor*)styleContext->GetStyleData(eStyleStruct_Color);
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// Look until we find a style context with a NON-transparent background color
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while (styleContext)
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{
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if ((colorData->mBackgroundFlags & NS_STYLE_BG_COLOR_TRANSPARENT)!=0)
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{
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nsIStyleContext* temp = styleContext;
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styleContext = styleContext->GetParent();
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NS_RELEASE(temp);
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colorData = (const nsStyleColor*)styleContext->GetStyleData(eStyleStruct_Color);
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}
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else
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{
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break;
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}
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}
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// Yaahoo, we found a style context which has a background color
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nscolor borderColor = 0xFFC0C0C0;
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if (styleContext != nsnull)
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borderColor = colorData->mBackgroundColor;
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// if the border color is white, then shift to grey
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if (borderColor == 0xFFFFFFFF)
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borderColor = 0xFFC0C0C0;
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aSpacingStyle.mBorderColor[NS_SIDE_TOP] =
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aSpacingStyle.mBorderColor[NS_SIDE_LEFT] =
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aSpacingStyle.mBorderColor[NS_SIDE_BOTTOM] =
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aSpacingStyle.mBorderColor[NS_SIDE_RIGHT] = borderColor;
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}
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PRBool nsTableCellFrame::ConvertToPixelValue(nsHTMLValue& aValue, PRInt32 aDefault, PRInt32& aResult)
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{
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PRInt32 result = 0;
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if (aValue.GetUnit() == eHTMLUnit_Pixel)
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aResult = aValue.GetPixelValue();
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else if (aValue.GetUnit() == eHTMLUnit_Empty)
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aResult = aDefault;
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else
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{
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NS_ERROR("Unit must be pixel or empty");
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return PR_FALSE;
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}
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return PR_TRUE;
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}
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void nsTableCellFrame::MapBorderMarginPadding(nsIPresContext* aPresContext)
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{
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// Check to see if the table has either cell padding or
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// Cell spacing defined for the table. If true, then
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// this setting overrides any specific border, margin or
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// padding information in the cell. If these attributes
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// are not defined, the the cells attributes are used
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nscoord padding = 0;
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nscoord spacing = 0;
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nscoord border = 1;
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float p2t = aPresContext->GetPixelsToTwips();
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nsTableFrame* tableFrame = GetTableFrame();
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tableFrame->GetGeometricParent((nsIFrame *&)tableFrame); // get the outer frame
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NS_ASSERTION(tableFrame,"Table Must not be null");
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if (!tableFrame)
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return;
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// get the table frame style context, and from it get cellpadding, cellspacing, and border info
|
|
nsIStyleContextPtr tableSC;
|
|
tableFrame->GetStyleContext(aPresContext, tableSC.AssignRef());
|
|
nsStyleTable* tableStyle = (nsStyleTable*)tableSC->GetStyleData(eStyleStruct_Table);
|
|
nsStyleSpacing* tableSpacingStyle = (nsStyleSpacing*)tableSC->GetStyleData(eStyleStruct_Spacing);
|
|
nsStyleSpacing* spacingData = (nsStyleSpacing*)mStyleContext->GetMutableStyleData(eStyleStruct_Spacing);
|
|
|
|
// check to see if cellpadding or cellspacing is defined
|
|
if (tableStyle->mCellPadding.GetUnit() != eStyleUnit_Null ||
|
|
tableStyle->mCellSpacing.GetUnit() != eStyleUnit_Null)
|
|
{
|
|
spacingData->mMargin.SetTop(tableStyle->mCellSpacing);
|
|
spacingData->mMargin.SetLeft(tableStyle->mCellSpacing);
|
|
spacingData->mMargin.SetBottom(tableStyle->mCellSpacing);
|
|
spacingData->mMargin.SetRight(tableStyle->mCellSpacing);
|
|
spacingData->mPadding.SetTop(tableStyle->mCellPadding);
|
|
spacingData->mPadding.SetLeft(tableStyle->mCellPadding);
|
|
spacingData->mPadding.SetBottom(tableStyle->mCellPadding);
|
|
spacingData->mPadding.SetRight(tableStyle->mCellPadding);
|
|
}
|
|
|
|
// get border information from the table
|
|
if (tableSpacingStyle->mBorder.GetTopUnit() == eStyleUnit_Coord)
|
|
{
|
|
nsStyleCoord borderWidth;
|
|
tableSpacingStyle->mBorder.GetTop(borderWidth);
|
|
if (0!=borderWidth.GetCoordValue())
|
|
{
|
|
// in HTML, cell borders are always 1 pixel by default
|
|
border = (nscoord)(1*(aPresContext->GetPixelsToTwips()));
|
|
MapHTMLBorderStyle(aPresContext, *spacingData, border);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void nsTableCellFrame::MapTextAttributes(nsIPresContext* aPresContext)
|
|
{
|
|
nsHTMLValue value;
|
|
|
|
((nsHTMLTagContent*)mContent)->GetAttribute(nsHTMLAtoms::align, value);
|
|
if (value.GetUnit() == eHTMLUnit_Enumerated)
|
|
{
|
|
nsStyleText* text = (nsStyleText*)mStyleContext->GetMutableStyleData(eStyleStruct_Text);
|
|
text->mTextAlign = value.GetIntValue();
|
|
}
|
|
}
|
|
|
|
|
|
// Subclass hook for style post processing
|
|
NS_METHOD nsTableCellFrame::DidSetStyleContext(nsIPresContext* aPresContext)
|
|
{
|
|
#ifdef NOISY_STYLE
|
|
printf("nsTableCellFrame::DidSetStyleContext \n");
|
|
#endif
|
|
|
|
MapTextAttributes(aPresContext);
|
|
MapBorderMarginPadding(aPresContext);
|
|
mStyleContext->RecalcAutomaticData(aPresContext);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_METHOD
|
|
nsTableCellFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
|
|
{
|
|
NS_PRECONDITION(0 != aInstancePtr, "null ptr");
|
|
if (NULL == aInstancePtr) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
if (aIID.Equals(kTableCellFrameCID)) {
|
|
*aInstancePtr = (void*) (this);
|
|
return NS_OK;
|
|
}
|
|
return nsContainerFrame::QueryInterface(aIID, aInstancePtr);
|
|
}
|
|
|
|
/* ----- static methods ----- */
|
|
|
|
nsresult nsTableCellFrame::NewFrame(nsIFrame** aInstancePtrResult,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParent)
|
|
{
|
|
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
|
|
if (nsnull == aInstancePtrResult) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsIFrame* it = new nsTableCellFrame(aContent, aParent);
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
*aInstancePtrResult = it;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
// For Debugging ONLY
|
|
NS_METHOD nsTableCellFrame::MoveTo(nscoord aX, nscoord aY)
|
|
{
|
|
if ((aX != mRect.x) || (aY != mRect.y)) {
|
|
mRect.x = aX;
|
|
mRect.y = aY;
|
|
|
|
nsIView* view;
|
|
GetView(view);
|
|
|
|
// Let the view know
|
|
if (nsnull != view) {
|
|
// Position view relative to it's parent, not relative to our
|
|
// parent frame (our parent frame may not have a view).
|
|
nsIView* parentWithView;
|
|
nsPoint origin;
|
|
GetOffsetFromView(origin, parentWithView);
|
|
view->SetPosition(origin.x, origin.y);
|
|
NS_IF_RELEASE(parentWithView);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_METHOD nsTableCellFrame::SizeTo(nscoord aWidth, nscoord aHeight)
|
|
{
|
|
mRect.width = aWidth;
|
|
mRect.height = aHeight;
|
|
|
|
nsIView* view;
|
|
GetView(view);
|
|
|
|
// Let the view know
|
|
if (nsnull != view) {
|
|
view->SetDimensions(aWidth, aHeight);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|