294 lines
8.0 KiB
C++
294 lines
8.0 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 "nsTableCol.h"
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#include "nsTableColFrame.h"
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#include "nsTableColGroup.h"
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#include "nsTablePart.h"
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#include "nsHTMLParts.h"
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#include "nsHTMLContainer.h"
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#include "nsContainerFrame.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 "nsHTMLIIDs.h"
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#include "nsHTMLAtoms.h"
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#ifdef NS_DEBUG
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static PRBool gsDebug = PR_FALSE;
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static PRBool gsNoisyRefs = PR_FALSE;
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#else
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static const PRBool gsDebug = PR_FALSE;
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static const PRBool gsNoisyRefs = PR_FALSE;
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#endif
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// hack, remove when hack in nsTableCol constructor is removed
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static PRInt32 HACKcounter=0;
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static nsIAtom *HACKattribute=nsnull;
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#include "prprf.h" // remove when nsTableCol constructor hack is removed
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// end hack code
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nsTableColFrame::nsTableColFrame(nsIContent* aContent, nsIFrame* aParentFrame)
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: nsFrame(aContent, aParentFrame)
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{
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mColIndex = 0;
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mRepeat = 0;
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}
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nsTableColFrame::~nsTableColFrame()
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{
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}
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NS_METHOD nsTableColFrame::Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect)
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{
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if (gsDebug==PR_TRUE)
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printf("nsTableColFrame::Paint\n");
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return NS_OK;
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}
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NS_METHOD nsTableColFrame::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_ASSERTION(nsnull!=aPresContext, "bad arg");
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aDesiredSize.width=0;
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aDesiredSize.height=0;
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if (nsnull!=aDesiredSize.maxElementSize)
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{
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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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return NS_OK;
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}
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/* ----- static methods ------ */
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nsresult nsTableColFrame::NewFrame(nsIFrame** aInstancePtrResult,
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nsIContent* aContent,
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nsIFrame* aParent)
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{
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NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
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if (nsnull == aInstancePtrResult) {
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return NS_ERROR_NULL_POINTER;
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}
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nsIFrame* it = new nsTableColFrame(aContent, aParent);
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if (nsnull == it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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*aInstancePtrResult = it;
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return NS_OK;
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}
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//---------------------- nsTableCol implementation -----------------------------------
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nsTableCol::nsTableCol(nsIAtom* aTag)
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: nsTableContent(aTag),
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mColGroup(0),
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mColIndex(0),
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mRepeat(0)
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{
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Init();
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}
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nsTableCol::nsTableCol()
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: nsTableContent(NS_NewAtom(nsTablePart::kColTagString)),
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mColGroup(0),
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mColIndex(0),
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mRepeat(0)
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{
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Init();
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}
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nsTableCol::nsTableCol (PRBool aImplicit)
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: nsTableContent(NS_NewAtom(nsTablePart::kColTagString)),
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mColGroup(0),
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mColIndex(0),
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mRepeat(0)
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{
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mImplicit = aImplicit;
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Init();
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}
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void nsTableCol::Init()
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{
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/* begin hack */
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// temporary hack to get around style sheet optimization that folds all
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// col style context into one, unless there is a unique HTML attribute set
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char out[40];
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PR_snprintf(out, 40, "%d", HACKcounter);
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const nsString value(out);
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if (nsnull==HACKattribute)
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HACKattribute = NS_NewAtom("Steve's unbelievable hack attribute");
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SetAttribute(HACKattribute, value);
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HACKcounter++;
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/* end hack */
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}
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nsTableCol::~nsTableCol()
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{
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}
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// Added for debuging purposes -- remove from final build
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nsrefcnt nsTableCol::AddRef(void)
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{
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if (gsNoisyRefs==PR_TRUE) printf("Add Ref: %x, nsTableCol cnt = %d \n",this, mRefCnt+1);
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return ++mRefCnt;
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}
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nsrefcnt nsTableCol::Release(void)
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{
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if (gsNoisyRefs==PR_TRUE) printf("Release: %x, nsTableCol cnt = %d \n",this,mRefCnt-1);
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if (--mRefCnt == 0) {
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if (gsNoisyRefs==PR_TRUE) printf("Delete: %x, nsTableCol \n",this);
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delete this;
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return 0;
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}
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return mRefCnt;
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}
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void nsTableCol::SetAttribute(nsIAtom* aAttribute, const nsString& aValue)
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{
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nsHTMLValue val;
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if (aAttribute == nsHTMLAtoms::width)
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{
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ParseValueOrPercentOrProportional(aValue, val, eHTMLUnit_Pixel);
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nsHTMLTagContent::SetAttribute(aAttribute, val);
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}
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else if ( aAttribute == nsHTMLAtoms::repeat)
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{
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ParseValue(aValue, 0, val, eHTMLUnit_Integer);
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nsHTMLTagContent::SetAttribute(aAttribute, val);
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SetRepeat(val.GetIntValue());
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}
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else if (aAttribute == nsHTMLAtoms::align) {
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nsHTMLValue val;
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if (ParseTableAlignParam(aValue, val)) {
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nsHTMLTagContent::SetAttribute(aAttribute, val);
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}
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return;
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}
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else if (aAttribute == nsHTMLAtoms::valign) {
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nsHTMLValue val;
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if (ParseTableAlignParam(aValue, val)) {
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nsHTMLTagContent::SetAttribute(aAttribute, val);
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}
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return;
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}
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// unknown attributes are handled by my parent
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nsTableContent::SetAttribute(aAttribute, aValue);
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}
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void nsTableCol::MapAttributesInto(nsIStyleContext* aContext,
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nsIPresContext* aPresContext)
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{
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NS_PRECONDITION(nsnull!=aContext, "bad style context arg");
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NS_PRECONDITION(nsnull!=aPresContext, "bad presentation context arg");
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if (nsnull != mAttributes) {
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float p2t;
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nsHTMLValue value;
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nsStyleText* textStyle = nsnull;
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// width
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GetAttribute(nsHTMLAtoms::width, value);
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if (value.GetUnit() != eHTMLUnit_Null) {
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nsStylePosition* position = (nsStylePosition*)
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aContext->GetMutableStyleData(eStyleStruct_Position);
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switch (value.GetUnit()) {
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case eHTMLUnit_Percent:
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position->mWidth.SetPercentValue(value.GetPercentValue());
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break;
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case eHTMLUnit_Pixel:
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p2t = aPresContext->GetPixelsToTwips();
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position->mWidth.SetCoordValue(nscoord(p2t * (float)value.GetPixelValue()));
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break;
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}
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}
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// align: enum
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GetAttribute(nsHTMLAtoms::align, value);
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if (value.GetUnit() == eHTMLUnit_Enumerated)
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{
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textStyle = (nsStyleText*)aContext->GetMutableStyleData(eStyleStruct_Text);
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textStyle->mTextAlign = value.GetIntValue();
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}
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// valign: enum
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GetAttribute(nsHTMLAtoms::valign, value);
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if (value.GetUnit() == eHTMLUnit_Enumerated)
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{
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if (nsnull==textStyle)
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textStyle = (nsStyleText*)aContext->GetMutableStyleData(eStyleStruct_Text);
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textStyle->mVerticalAlign.SetIntValue(value.GetIntValue(), eStyleUnit_Enumerated);
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}
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}
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}
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nsresult
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nsTableCol::CreateFrame(nsIPresContext* aPresContext,
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nsIFrame* aParentFrame,
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nsIStyleContext* aStyleContext,
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nsIFrame*& aResult)
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{
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NS_PRECONDITION(nsnull!=aPresContext, "bad arg");
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nsIFrame* frame;
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nsresult rv = nsTableColFrame::NewFrame(&frame, this, aParentFrame);
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if (NS_OK != rv) {
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return rv;
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}
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((nsTableColFrame*)frame)->Init(mColIndex, mRepeat);
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frame->SetStyleContext(aPresContext, aStyleContext);
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aResult = frame;
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return rv;
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}
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void nsTableCol::ResetColumns ()
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{
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if (nsnull != mColGroup)
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mColGroup->ResetColumns ();
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}
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/* ---------- Global Functions ---------- */
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nsresult
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NS_NewTableColPart(nsIHTMLContent** aInstancePtrResult,
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nsIAtom* aTag)
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{
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NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
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if (nsnull == aInstancePtrResult) {
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return NS_ERROR_NULL_POINTER;
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}
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nsIHTMLContent* body = new nsTableCol(aTag);
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if (nsnull == body) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return body->QueryInterface(kIHTMLContentIID, (void **) aInstancePtrResult);
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}
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