382 lines
11 KiB
C++
382 lines
11 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 "nsTableColGroup.h"
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#include "nsTableColGroupFrame.h"
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#include "nsTableCol.h"
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#include "nsTablePart.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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nsTableColGroup::nsTableColGroup(nsIAtom* aTag, int aSpan)
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: nsTableContent(aTag),
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mSpan(aSpan),
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mStartColIndex(0),
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mColCount(0)
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{
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}
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nsTableColGroup::nsTableColGroup (PRBool aImplicit)
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: nsTableContent(NS_NewAtom(nsTablePart::kColGroupTagString)),
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mSpan(0),
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mStartColIndex(0),
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mColCount(0)
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{
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mImplicit = aImplicit;
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}
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nsTableColGroup::~nsTableColGroup()
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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 nsTableColGroup::AddRef(void)
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{
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if (gsNoisyRefs==PR_TRUE)
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printf("Add Ref: %x, nsTableColGroup cnt = %d \n",this,mRefCnt+1);
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return ++mRefCnt;
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}
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nsrefcnt nsTableColGroup::Release(void)
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{
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if (gsNoisyRefs==PR_TRUE)
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if (gsNoisyRefs==PR_TRUE) printf("Release: %x, nsTableColGroup cnt = %d \n",this,mRefCnt-1);
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if (--mRefCnt == 0) {
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if (gsNoisyRefs==PR_TRUE) printf("Delete: %x, nsTableColGroup \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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/** returns the number of columns represented by this group.
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* if there are col children, count them (taking into account the span of each)
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* else, check my own span attribute.
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*/
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int nsTableColGroup::GetColumnCount ()
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{
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if (0 == mColCount)
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{
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int count = ChildCount ();
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if (0 < count)
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{
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for (int index = 0; index < count; index++)
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{
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nsIContent * child = ChildAt (index); // child: REFCNT++
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NS_ASSERTION(nsnull!=child, "bad child");
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// is child a column?
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nsTableContent *tableContent = (nsTableContent *)child;
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if (tableContent->GetType() == nsITableContent::kTableColType)
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{
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nsTableCol * col = (nsTableCol *)tableContent;
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col->SetColumnIndex (mStartColIndex + mColCount);
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mColCount += col->GetRepeat ();
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}
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NS_RELEASE(child); // child: REFCNT--
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}
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}
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else
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mColCount = GetSpan ();
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}
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return mColCount;
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}
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void nsTableColGroup::ResetColumns ()
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{
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mColCount = 0;
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}
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NS_IMETHODIMP
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nsTableColGroup::AppendChild (nsIContent *aContent, PRBool aNotify)
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{
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NS_ASSERTION(nsnull!=aContent, "bad arg");
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// is aContent a TableRow?
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PRBool isCol = IsCol(aContent);
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if (PR_FALSE==isCol)
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{
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// you should go talk to my parent if you want to insert something other than a column
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return NS_OK;
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}
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nsresult result = NS_ERROR_FAILURE;
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PRBool contentHandled = PR_FALSE;
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// SEC: TODO verify that aContent is table content
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nsTableContent *tableContent = (nsTableContent *)aContent;
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PRBool isImplicit;
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tableContent->IsSynthetic(isImplicit);
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if (PR_FALSE==isImplicit)
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{
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/* if aContent is not implicit,
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* and if we already have an implicit column for this actual column,
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* then replace the implicit col with this actual col.
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*/
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PRInt32 childCount = ChildCount();
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for (PRInt32 colIndex=0; colIndex<childCount; colIndex++)
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{
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nsTableContent *col = (nsTableContent*)ChildAt(colIndex);
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NS_ASSERTION(nsnull!=col, "bad child");
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PRBool colIsImplicit;
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col->IsSynthetic(colIsImplicit);
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if (PR_TRUE==colIsImplicit)
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{
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ReplaceChildAt(aContent, colIndex, aNotify);
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contentHandled = PR_TRUE;
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break;
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}
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}
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}
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if (PR_FALSE==contentHandled)
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result = nsTableContent::AppendChild (aContent, aNotify);
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if (NS_OK==result)
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{
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((nsTableCol *)aContent)->SetColGroup (this);
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((nsTableCol *)aContent)->SetColumnIndex (mStartColIndex + mColCount);
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ResetColumns ();
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsTableColGroup::InsertChildAt (nsIContent *aContent, PRInt32 aIndex,
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PRBool aNotify)
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{
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NS_ASSERTION(nsnull!=aContent, "bad arg");
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// is aContent a TableCol?
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PRBool isCol = IsCol(aContent);
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// if not, ignore the request to add aContent
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if (PR_FALSE==isCol)
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{
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// you should go talk to my parent if you want to insert something other than a column
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return NS_OK;
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}
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// if so, add the row to this group
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nsresult result = nsTableContent::InsertChildAt (aContent, aIndex, aNotify);
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if (NS_OK==result)
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{
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((nsTableCol *)aContent)->SetColGroup (this);
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ResetColumns ();
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsTableColGroup::ReplaceChildAt (nsIContent * aContent, PRInt32 aIndex,
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PRBool aNotify)
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{
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NS_ASSERTION(nsnull!=aContent, "bad arg");
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NS_ASSERTION((0<=aIndex && ChildCount()>aIndex), "bad arg");
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if ((nsnull==aContent) || !(0<=aIndex && ChildCount()>aIndex))
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return PR_FALSE;
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// is aContent a TableRow?
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PRBool isCol = IsCol(aContent);
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// if not, ignore the request to replace the child at aIndex
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if (PR_FALSE==isCol)
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{
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// you should go talk to my parent if you want to insert something other than a column
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return NS_OK;
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}
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nsIContent * lastChild = ChildAt (aIndex); // lastChild : REFCNT++
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NS_ASSERTION(nsnull!=lastChild, "bad child");
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nsresult result = nsTableContent::ReplaceChildAt (aContent, aIndex, aNotify);
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if (NS_OK==result)
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{
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((nsTableCol *)aContent)->SetColGroup (this);
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if (nsnull != lastChild)
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((nsTableCol *)lastChild)->SetColGroup (nsnull);
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ResetColumns ();
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}
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NS_RELEASE(lastChild); // lastChild : REFCNT--
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return NS_OK;
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}
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/**
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* Remove a child at the given position. The method is ignored if
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* the index is invalid (too small or too large).
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*/
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NS_IMETHODIMP
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nsTableColGroup::RemoveChildAt (PRInt32 aIndex, PRBool aNotify)
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{
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NS_ASSERTION((0<=aIndex && ChildCount()>aIndex), "bad arg");
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nsIContent * lastChild = ChildAt (aIndex); // lastChild: REFCNT++
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NS_ASSERTION(nsnull!=lastChild, "bad child");
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nsresult result = nsTableContent::RemoveChildAt (aIndex, aNotify);
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if (NS_OK==result)
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{
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if (nsnull != lastChild)
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((nsTableCol *)lastChild)->SetColGroup (nsnull);
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ResetColumns ();
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}
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NS_IF_RELEASE(lastChild); // lastChild REFCNT--
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return NS_OK;
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}
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/** support method to determine if the param aContent is a TableRow object */
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PRBool nsTableColGroup::IsCol(nsIContent * aContent) const
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{
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NS_ASSERTION(nsnull!=aContent, "bad arg");
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PRBool result = PR_FALSE;
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if (nsnull!=aContent)
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{
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// is aContent a col?
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nsTableContent *tableContent = (nsTableContent *)aContent;
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const int contentType = tableContent->GetType();
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if (contentType == nsITableContent::kTableColType)
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result = PR_TRUE;
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}
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return result;
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}
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void nsTableColGroup::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::span)
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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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SetSpan(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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}
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void nsTableColGroup::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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nsTableColGroup::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 = nsTableColGroupFrame::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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frame->SetStyleContext(aPresContext, aStyleContext);
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aResult = frame;
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return rv;
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}
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/* ---------- Global Functions ---------- */
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NS_HTML nsresult
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NS_NewTableColGroupPart(nsIHTMLContent** aInstancePtrResult,
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nsIAtom* aTag)
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{
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NS_PRECONDITION(nsnull != aInstancePtrResult, "nsnull 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 nsTableColGroup(aTag, 0);
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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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