/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- * * The contents of this file are subject to the Netscape Public License * Version 1.0 (the "NPL"); you may not use this file except in * compliance with the NPL. You may obtain a copy of the NPL at * http://www.mozilla.org/NPL/ * * Software distributed under the NPL is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL * for the specific language governing rights and limitations under the * NPL. * * The Initial Developer of this code under the NPL is Netscape * Communications Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All Rights * Reserved. */ #include "nsTableFrame.h" #include "nsIRenderingContext.h" #include "nsIStyleContext.h" #include "nsIContent.h" #include "nsCellMap.h" #include "nsTableCellFrame.h" #include "nsHTMLParts.h" #include "nsTableColFrame.h" #include "nsTableColGroupFrame.h" #include "nsTableRowFrame.h" #include "nsTableRowGroupFrame.h" #include "nsIHTMLContent.h" #include "BasicTableLayoutStrategy.h" // #include "FixedTableLayoutStrategy.h" #include "nsIPresContext.h" #include "nsCSSRendering.h" #include "nsStyleConsts.h" #include "nsVoidArray.h" #include "nsIPtr.h" #include "nsIView.h" #include "nsHTMLAtoms.h" #include "nsHTMLIIDs.h" #include "nsIReflowCommand.h" #ifdef NS_DEBUG static PRBool gsDebug = PR_FALSE; static PRBool gsDebugCLD = PR_FALSE; static PRBool gsDebugNT = PR_FALSE; //#define NOISY //#define NOISY_FLOW //#ifdef NOISY_STYLE #else static const PRBool gsDebug = PR_FALSE; static const PRBool gsDebugCLD = PR_FALSE; static const PRBool gsDebugNT = PR_FALSE; #endif #ifndef max #define max(x, y) ((x) > (y) ? (x) : (y)) #endif NS_DEF_PTR(nsIStyleContext); NS_DEF_PTR(nsIContent); const nsIID kTableFrameCID = NS_TABLEFRAME_CID; /* ----------- CellData ---------- */ /* CellData is the info stored in the cell map */ CellData::CellData() { mCell = nsnull; mRealCell = nsnull; mOverlap = nsnull; } CellData::~CellData() {} /* ----------- InnerTableReflowState ---------- */ struct InnerTableReflowState { // Our reflow state const nsReflowState& reflowState; // The body's available size (computed from the body's parent) nsSize availSize; nscoord leftInset, topInset; // Margin tracking information nscoord prevMaxPosBottomMargin; nscoord prevMaxNegBottomMargin; // Flags for whether the max size is unconstrained PRBool unconstrainedWidth; PRBool unconstrainedHeight; // Running y-offset nscoord y; // a list of the footers in this table frame, for quick access when inserting bodies nsVoidArray *footerList; // cache the total height of the footers for placing body rows nscoord footerHeight; InnerTableReflowState(nsIPresContext* aPresContext, const nsReflowState& aReflowState, const nsMargin& aBorderPadding) : reflowState(aReflowState) { prevMaxPosBottomMargin = 0; prevMaxNegBottomMargin = 0; y=0; // border/padding/margin??? unconstrainedWidth = PRBool(aReflowState.maxSize.width == NS_UNCONSTRAINEDSIZE); availSize.width = aReflowState.maxSize.width; if (!unconstrainedWidth) { availSize.width -= aBorderPadding.left + aBorderPadding.right; } leftInset = aBorderPadding.left; unconstrainedHeight = PRBool(aReflowState.maxSize.height == NS_UNCONSTRAINEDSIZE); availSize.height = aReflowState.maxSize.height; if (!unconstrainedHeight) { availSize.height -= aBorderPadding.top + aBorderPadding.bottom; } topInset = aBorderPadding.top; footerHeight = 0; footerList = nsnull; } ~InnerTableReflowState() { if (nsnull!=footerList) delete footerList; } }; /* ----------- ColumnInfoCache ---------- */ static const PRInt32 NUM_COL_WIDTH_TYPES=4; class ColumnInfoCache { public: ColumnInfoCache(PRInt32 aNumColumns); ~ColumnInfoCache(); void AddColumnInfo(const nsStyleUnit aType, PRInt32 aColumnIndex); void GetColumnsByType(const nsStyleUnit aType, PRInt32& aOutNumColumns, PRInt32 *& aOutColumnIndexes); enum ColWidthType { eColWidthType_Auto = 0, // width based on contents eColWidthType_Percent = 1, // (float) 1.0 == 100% eColWidthType_Coord = 2, // (nscoord) value is twips eColWidthType_Proportional = 3 // (int) value has proportional meaning }; private: PRInt32 mColCounts [4]; PRInt32 *mColIndexes[4]; PRInt32 mNumColumns; }; ColumnInfoCache::ColumnInfoCache(PRInt32 aNumColumns) { mNumColumns = aNumColumns; for (PRInt32 i=0; iGetNextSibling((nsIFrame*&)aRowGroupFrame); } while (nsnull != aRowGroupFrame) { const nsStyleDisplay *display; aRowGroupFrame->GetStyleData(eStyleStruct_Display, (nsStyleStruct *&)display); if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == display->mDisplay || NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == display->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == display->mDisplay ) { break; } // Get the next frame aRowGroupFrame->GetNextSibling((nsIFrame*&)aRowGroupFrame); } return aRowGroupFrame; } /* counts columns in column groups */ PRInt32 nsTableFrame::GetSpecifiedColumnCount () { mColCount=0; nsIFrame * colGroup = mFirstChild; while (nsnull!=colGroup) { const nsStyleDisplay *childDisplay; colGroup->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == childDisplay->mDisplay) { mColCount += ((nsTableColGroupFrame *)colGroup)->GetColumnCount(); } else if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay ) { break; } colGroup->GetNextSibling(colGroup); } return mColCount; } PRInt32 nsTableFrame::GetRowCount () { PRInt32 rowCount = 0; nsCellMap *cellMap = GetCellMap(); if (nsnull != cellMap) return cellMap->GetRowCount(); nsIFrame *child=mFirstChild; while (nsnull!=child) { const nsStyleDisplay *childDisplay; child->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay ) { PRInt32 thisRowCount=0; ((nsTableRowGroupFrame *)child)->GetRowCount(thisRowCount); rowCount += thisRowCount; } child->GetNextSibling(child); } return rowCount; } /* return the effective col count */ PRInt32 nsTableFrame::GetColCount () { nsCellMap *cellMap = GetCellMap(); NS_ASSERTION(nsnull!=cellMap, "GetColCount can only be called after cellmap has been created"); if (nsnull!=cellMap) { //if (-1==mEffectiveColCount) SetEffectiveColCount(); } return mEffectiveColCount; } void nsTableFrame::SetEffectiveColCount() { nsCellMap *cellMap = GetCellMap(); if (nsnull!=cellMap) { PRInt32 colCount = cellMap->GetColCount(); mEffectiveColCount = colCount; PRInt32 rowCount = cellMap->GetRowCount(); for (PRInt32 colIndex=colCount-1; colIndex>0; colIndex--) { PRBool deleteCol=PR_TRUE; for (PRInt32 rowIndex=0; rowIndexGetCellAt(rowIndex, colIndex); if ((nsnull!=cell) && (cell->mCell != nsnull)) { // found a real cell, so we're done deleteCol = PR_FALSE; break; } } if (PR_TRUE==deleteCol) mEffectiveColCount--; else break; } } } nsTableColFrame * nsTableFrame::GetColFrame(PRInt32 aColIndex) { nsTableColFrame *result = nsnull; nsCellMap *cellMap = GetCellMap(); if (nsnull!=cellMap) { result = cellMap->GetColumnFrame(aColIndex); } return result; } // can return nsnull nsTableCellFrame * nsTableFrame::GetCellFrameAt(PRInt32 aRowIndex, PRInt32 aColIndex) { nsTableCellFrame *result = nsnull; nsCellMap *cellMap = GetCellMap(); if (nsnull!=cellMap) { CellData * cellData = cellMap->GetCellAt(aRowIndex, aColIndex); if (nsnull!=cellData) { result = cellData->mCell; if (nsnull==result) result = cellData->mRealCell->mCell; } } return result; } /** returns PR_TRUE if the row at aRowIndex has any cells that are the result * of a row-spanning cell. * @see nsCellMap::RowIsSpannedInto */ PRBool nsTableFrame::RowIsSpannedInto(PRInt32 aRowIndex) { NS_PRECONDITION (0<=aRowIndex && aRowIndexRowIsSpannedInto(aRowIndex); } return result; } /** returns PR_TRUE if the row at aRowIndex has any cells that have a rowspan>1 * @see nsCellMap::RowHasSpanningCells */ PRBool nsTableFrame::RowHasSpanningCells(PRInt32 aRowIndex) { NS_PRECONDITION (0<=aRowIndex && aRowIndexRowHasSpanningCells(aRowIndex); } return result; } /** returns PR_TRUE if the col at aColIndex has any cells that are the result * of a col-spanning cell. * @see nsCellMap::ColIsSpannedInto */ PRBool nsTableFrame::ColIsSpannedInto(PRInt32 aColIndex) { PRInt32 colCount=GetColCount(); NS_PRECONDITION (0<=aColIndex && aColIndexColIsSpannedInto(aColIndex); } return result; } /** returns PR_TRUE if the row at aColIndex has any cells that have a colspan>1 * @see nsCellMap::ColHasSpanningCells */ PRBool nsTableFrame::ColHasSpanningCells(PRInt32 aColIndex) { PRInt32 colCount=GetColCount(); NS_PRECONDITION (0<=aColIndex && aColIndexColHasSpanningCells(aColIndex); } return result; } // return the number of rows spanned by aCell starting at aRowIndex // note that this is different from just the rowspan of aCell // (that would be GetEffectiveRowSpan (indexOfRowThatContains_aCell, aCell) // // XXX This code should be in the table row group frame instead, and it // should clip rows spans so they don't extend past a row group rather than // clip to the table itself. Before that can happen the code that builds the // cell map needs to take row groups into account PRInt32 nsTableFrame::GetEffectiveRowSpan (PRInt32 aRowIndex, nsTableCellFrame *aCell) { NS_PRECONDITION (nsnull!=aCell, "bad cell arg"); NS_PRECONDITION (0<=aRowIndex && aRowIndexGetRowSpan(); PRInt32 rowCount = GetRowCount(); if (rowCount < (aRowIndex + rowSpan)) return (rowCount - aRowIndex); return rowSpan; } // return the number of cols spanned by aCell starting at aColIndex // note that this is different from just the colspan of aCell // (that would be GetEffectiveColSpan (indexOfColThatContains_aCell, aCell) // // XXX Should be moved to colgroup, as GetEffectiveRowSpan should be moved to rowgroup? PRInt32 nsTableFrame::GetEffectiveColSpan (PRInt32 aColIndex, nsTableCellFrame *aCell) { NS_PRECONDITION (nsnull!=aCell, "bad cell arg"); nsCellMap *cellMap = GetCellMap(); NS_PRECONDITION (nsnull!=cellMap, "bad call, cellMap not yet allocated."); PRInt32 colCount = GetColCount(); NS_PRECONDITION (0<=aColIndex && aColIndexGetRowCount()==1) return 1; */ PRInt32 colSpan = aCell->GetColSpan(); if (colCount < (aColIndex + colSpan)) result = colCount - aColIndex; else { result = colSpan; // check for case where all cells in a column have a colspan PRInt32 initialColIndex = aCell->GetColIndex(); PRInt32 minColSpanForCol = cellMap->GetMinColSpan(initialColIndex); result -= (minColSpanForCol - 1); // minColSpanForCol is always at least 1 // and we want to treat default as 0 (no effect) } #ifdef NS_DEBUG if (0>=result) { printf("ERROR!\n"); DumpCellMap(); printf("aColIndex=%d, cell->colIndex=%d\n", aColIndex, aCell->GetColIndex()); printf("aCell->colSpan=%d\n", aCell->GetColSpan()); printf("colCount=%d\n", mCellMap->GetColCount()); } #endif NS_ASSERTION(0mCols; PRInt32 numCols = GetColCount(); if (result>numCols) result = numCols; return result; } /* call when the cell structure has changed. mCellMap will be rebuilt on demand. */ void nsTableFrame::ResetCellMap () { // XXX: SEC should this call ResetCellMap on firstInFlow? if (nsnull!=mCellMap) delete mCellMap; mCellMap = nsnull; // for now, will rebuild when needed } /** sum the columns represented by all nsTableColGroup objects * if the cell map says there are more columns than this, * add extra implicit columns to the content tree. */ // XXX this and EnsureColumnsAt should be 1 method, with -1 for aColIndex meaning "do them all" void nsTableFrame::EnsureColumns(nsIPresContext* aPresContext) { nsresult rv; NS_PRECONDITION(nsnull!=mCellMap, "bad state: null cellmap"); // XXX sec should only be called on firstInFlow SetMinColSpanForTable(); if (nsnull==mCellMap) return; // no info yet, so nothing useful to do // make sure we've accounted for the COLS attribute AdjustColumnsForCOLSAttribute(); PRInt32 actualColumns = 0; nsTableColGroupFrame *lastColGroupFrame = nsnull; nsIFrame * firstRowGroupFrame=nsnull; nsIFrame * prevSibFrame=nsnull; nsIFrame * childFrame=mFirstChild; while (nsnull!=childFrame) { const nsStyleDisplay *childDisplay; childFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == childDisplay->mDisplay) { PRInt32 numCols = ((nsTableColGroupFrame*)childFrame)->GetColumnCount(); actualColumns += numCols; lastColGroupFrame = (nsTableColGroupFrame *)childFrame; if (PR_TRUE==gsDebug) printf("EC: found a col group %p\n", lastColGroupFrame); } else if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay ) { firstRowGroupFrame = childFrame; if (PR_TRUE==gsDebug) printf("EC: found a row group %p\n", firstRowGroupFrame); break; } prevSibFrame = childFrame; childFrame->GetNextSibling(childFrame); } PRInt32 colCount = GetColCount(); if (PR_TRUE==gsDebug) printf("EC: actual = %d, colCount=%d\n", actualColumns, colCount); if (actualColumns < colCount) { nsIHTMLContent *lastColGroup=nsnull; if (nsnull==lastColGroupFrame) { if (PR_TRUE==gsDebug) printf("EC:creating colgroup\n", actualColumns, colCount); // create an implicit colgroup nsAutoString colGroupTag; nsHTMLAtoms::colgroup->ToString(colGroupTag); rv = NS_CreateHTMLElement(&lastColGroup, colGroupTag); // ADDREF a: lastColGroup++ //XXX mark it as implicit! mContent->AppendChildTo(lastColGroup, PR_FALSE); // add the implicit colgroup to my content // Resolve style for the child nsIStyleContext* colGroupStyleContext = aPresContext->ResolveStyleContextFor(lastColGroup, this, PR_TRUE); // kidStyleContext: REFCNT++ // Create a col group frame nsIFrame* newFrame; NS_NewTableColGroupFrame(lastColGroup, this, newFrame); lastColGroupFrame = (nsTableColGroupFrame*)newFrame; lastColGroupFrame->SetStyleContext(aPresContext, colGroupStyleContext); NS_RELEASE(colGroupStyleContext); // kidStyleContenxt: REFCNT-- // hook lastColGroupFrame into child list if (nsnull==firstRowGroupFrame) { // make lastColGroupFrame the last frame nsIFrame *lastChild = LastFrame(mFirstChild); lastChild->SetNextSibling(lastColGroupFrame); } else { // insert lastColGroupFrame before the first row group frame if (nsnull!=prevSibFrame) { // lastColGroupFrame is inserted between prevSibFrame and lastColGroupFrame prevSibFrame->SetNextSibling(lastColGroupFrame); } else { // lastColGroupFrame is inserted as the first child of this table mFirstChild = lastColGroupFrame; } lastColGroupFrame->SetNextSibling(firstRowGroupFrame); } } else { lastColGroupFrame->GetContent((nsIContent *&)lastColGroup); // ADDREF b: lastColGroup++ } // XXX It would be better to do this in the style code while constructing // the table's frames nsAutoString colTag; nsHTMLAtoms::col->ToString(colTag); PRInt32 excessColumns = GetColCount() - actualColumns; nsIFrame* firstNewColFrame = nsnull; nsIFrame* lastNewColFrame = nsnull; for ( ; excessColumns > 0; excessColumns--) { if (PR_TRUE==gsDebug) printf("EC:creating col\n", actualColumns, colCount); nsIHTMLContent *col=nsnull; // create an implicit col rv = NS_CreateHTMLElement(&col, colTag); // ADDREF: col++ //XXX mark the col implicit lastColGroup->AppendChildTo((nsIContent*)col, PR_FALSE); // Create a new col frame nsIFrame* colFrame; NS_NewTableColFrame(col, lastColGroupFrame, colFrame); // Set its style context nsIStyleContextPtr colStyleContext = aPresContext->ResolveStyleContextFor(col, lastColGroupFrame, PR_TRUE); colFrame->SetStyleContext(aPresContext, colStyleContext); colFrame->Init(*aPresContext, nsnull); // XXX Don't release this style context (or we'll end up with a double-free).\ // This code is doing what nsTableColGroupFrame::Reflow() does... //NS_RELEASE(colStyleContext); // Add it to our list if (nsnull == lastNewColFrame) { firstNewColFrame = colFrame; } else { lastNewColFrame->SetNextSibling(colFrame); } lastNewColFrame = colFrame; NS_RELEASE(col); // ADDREF: col-- } lastColGroupFrame->Init(*aPresContext, firstNewColFrame); NS_RELEASE(lastColGroup); // ADDREF: lastColGroup-- } } /** sum the columns represented by all nsTableColGroup objects * if the cell map says there are more columns than this, * add extra implicit columns to the content tree. */ // XXX should be nsresult, not void void nsTableFrame::EnsureColumnFrameAt(PRInt32 aColIndex, nsIPresContext* aPresContext) { nsresult rv; PRInt32 actualColumns = 0; nsTableColGroupFrame *lastColGroupFrame = nsnull; nsIFrame * firstRowGroupFrame=nsnull; nsIFrame * prevSibFrame=nsnull; nsIFrame * childFrame=mFirstChild; while (nsnull!=childFrame) { const nsStyleDisplay *childDisplay; childFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == childDisplay->mDisplay) { PRInt32 numCols = ((nsTableColGroupFrame*)childFrame)->GetColumnCount(); actualColumns += numCols; lastColGroupFrame = (nsTableColGroupFrame *)childFrame; if (actualColumns > aColIndex) break; // we have enough col frames at this point } else if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay ) { firstRowGroupFrame = childFrame; break; } prevSibFrame = childFrame; childFrame->GetNextSibling(childFrame); } if (actualColumns <= aColIndex) { nsIHTMLContent *lastColGroup=nsnull; if (nsnull==lastColGroupFrame) { // create an implicit colgroup nsAutoString colGroupTag; nsHTMLAtoms::colgroup->ToString(colGroupTag); rv = NS_CreateHTMLElement(&lastColGroup, colGroupTag); // ADDREF a: lastColGroup++ //XXX mark it as implicit! mContent->AppendChildTo(lastColGroup, PR_FALSE); // add the implicit colgroup to my content // Resolve style for the child nsIStyleContext* colGroupStyleContext = aPresContext->ResolveStyleContextFor(lastColGroup, this, PR_TRUE); // kidStyleContext: REFCNT++ // Create a col group frame nsIFrame* newFrame; NS_NewTableColGroupFrame(lastColGroup, this, newFrame); lastColGroupFrame = (nsTableColGroupFrame*)newFrame; lastColGroupFrame->SetStyleContext(aPresContext, colGroupStyleContext); NS_RELEASE(colGroupStyleContext); // kidStyleContenxt: REFCNT-- // hook lastColGroupFrame into child list if (nsnull==firstRowGroupFrame) { // make lastColGroupFrame the last frame nsIFrame *lastChild = LastFrame(mFirstChild); lastChild->SetNextSibling(lastColGroupFrame); } else { // insert lastColGroupFrame before the first row group frame if (nsnull!=prevSibFrame) { // lastColGroupFrame is inserted between prevSibFrame and lastColGroupFrame prevSibFrame->SetNextSibling(lastColGroupFrame); } else { // lastColGroupFrame is inserted as the first child of this table mFirstChild = lastColGroupFrame; } lastColGroupFrame->SetNextSibling(firstRowGroupFrame); } } else { lastColGroupFrame->GetContent((nsIContent *&)lastColGroup); // ADDREF b: lastColGroup++ } // XXX It would be better to do this in the style code while constructing // the table's frames nsAutoString colTag; nsHTMLAtoms::col->ToString(colTag); PRInt32 excessColumns = aColIndex - actualColumns; nsIFrame* firstNewColFrame = nsnull; nsIFrame* lastNewColFrame = nsnull; for ( ; excessColumns >= 0; excessColumns--) { nsIHTMLContent *col=nsnull; // create an implicit col rv = NS_CreateHTMLElement(&col, colTag); // ADDREF: col++ //XXX mark the col implicit lastColGroup->AppendChildTo((nsIContent*)col, PR_FALSE); // Create a new col frame nsIFrame* colFrame; NS_NewTableColFrame(col, lastColGroupFrame, colFrame); // Set its style context nsIStyleContextPtr colStyleContext = aPresContext->ResolveStyleContextFor(col, lastColGroupFrame, PR_TRUE); colFrame->SetStyleContext(aPresContext, colStyleContext); // XXX Don't release this style context (or we'll end up with a double-free).\ // This code is doing what nsTableColGroupFrame::Reflow() does... //NS_RELEASE(colStyleContext); // Add it to our list if (nsnull == lastNewColFrame) { firstNewColFrame = colFrame; } else { lastNewColFrame->SetNextSibling(colFrame); } lastNewColFrame = colFrame; NS_RELEASE(col); // ADDREF: col-- } NS_RELEASE(lastColGroup); // ADDREF: lastColGroup-- } } void nsTableFrame::AddColumnFrame (nsTableColFrame *aColFrame) { mCellMap->AppendColumnFrame(aColFrame); } /** return the index of the next row that is not yet assigned */ PRInt32 nsTableFrame::GetNextAvailRowIndex() const { PRInt32 result=0; if (nsnull!=mCellMap) { result = mCellMap->GetRowCount(); // the next index is the current count mCellMap->GrowToRow(result+1); // expand the cell map to include this new row } return result; } /** return the index of the next column in aRowIndex that does not have a cell assigned to it */ PRInt32 nsTableFrame::GetNextAvailColIndex(PRInt32 aRowIndex, PRInt32 aColIndex) const { PRInt32 result=0; if (nsnull!=mCellMap) result = mCellMap->GetNextAvailColIndex(aRowIndex, aColIndex); return result; } /** Get the cell map for this table frame. It is not always mCellMap. * Only the firstInFlow has a legit cell map */ nsCellMap * nsTableFrame::GetCellMap() { nsTableFrame * firstInFlow = (nsTableFrame *)GetFirstInFlow(); if (this!=firstInFlow) { return firstInFlow->GetCellMap(); } return mCellMap; } void nsTableFrame::SetMinColSpanForTable() { // XXX: must be called ONLY on first-in-flow // set the minColSpan for each column PRInt32 rowCount = mCellMap->GetRowCount(); for (PRInt32 colIndex=0; colIndexGetCellFrameAt(rowIndex, colIndex); if (nsnull!=cellFrame) { PRInt32 colSpan = cellFrame->GetColSpan(); if (0==rowIndex) minColSpan = colSpan; else minColSpan = PR_MIN(minColSpan, colSpan); } } if (1SetMinColSpan(colIndex, minColSpan); } } void nsTableFrame::AddCellToTable (nsTableRowFrame *aRowFrame, nsTableCellFrame *aCellFrame, PRBool aAddRow) { NS_ASSERTION(nsnull!=aRowFrame, "bad aRowFrame arg"); NS_ASSERTION(nsnull!=aCellFrame, "bad aCellFrame arg"); NS_PRECONDITION(nsnull!=mCellMap, "bad cellMap"); // XXX: must be called only on first-in-flow! if (gsDebug==PR_TRUE) printf("Build Cell Map...\n"); // Make an educated guess as to how many columns we have. It's // only a guess because we can't know exactly until we have // processed the last row. if (0 == mColCount) mColCount = GetSpecifiedColumnCount(); if (0 == mColCount) // no column parts { mColCount = aRowFrame->GetMaxColumns(); } PRInt32 rowIndex; // If we have a cell map reset it; otherwise allocate a new cell map // also determine the index of aRowFrame and set it if necessary if (0==mCellMap->GetRowCount()) { // this is the first time we've ever been called rowIndex = 0; if (gsDebug==PR_TRUE) printf("rowFrame %p set to index %d\n", aRowFrame, rowIndex); } else { rowIndex = mCellMap->GetRowCount() - 1; // rowIndex is 0-indexed, rowCount is 1-indexed } PRInt32 colIndex=0; while (PR_TRUE) { CellData *data = mCellMap->GetCellAt(rowIndex, colIndex); if (nsnull == data) { BuildCellIntoMap(aCellFrame, rowIndex, colIndex); break; } colIndex++; } if (gsDebug==PR_TRUE) DumpCellMap (); } /** */ void nsTableFrame::DumpCellMap () { printf("dumping CellMap:\n"); if (nsnull != mCellMap) { PRInt32 rowCount = mCellMap->GetRowCount(); PRInt32 colCount = mCellMap->GetColCount(); for (PRInt32 rowIndex = 0; rowIndex < rowCount; rowIndex++) { if (gsDebug==PR_TRUE) { printf("row %d", rowIndex); printf(": "); } for (PRInt32 colIndex = 0; colIndex < colCount; colIndex++) { CellData *cd =mCellMap->GetCellAt(rowIndex, colIndex); if (cd != nsnull) { if (cd->mCell != nsnull) { printf("C%d,%d ", rowIndex, colIndex); printf(" "); } else { nsTableCellFrame *cell = cd->mRealCell->mCell; nsTableRowFrame *row; cell->GetGeometricParent((nsIFrame *&)row); int rr = row->GetRowIndex (); int cc = cell->GetColIndex (); printf("S%d,%d ", rr, cc); if (cd->mOverlap != nsnull) { cell = cd->mOverlap->mCell; nsTableRowFrame* row2; cell->GetGeometricParent((nsIFrame *&)row2); rr = row2->GetRowIndex (); cc = cell->GetColIndex (); printf("O%d,%c ", rr, cc); } else printf(" "); } } else printf("---- "); } PRBool spanners = RowHasSpanningCells(rowIndex); PRBool spannedInto = RowIsSpannedInto(rowIndex); printf (" spanners=%s spannedInto=%s\n", spanners?"T":"F", spannedInto?"T":"F"); } // output colspan info for (PRInt32 colIndex=0; colIndexGetRowSpan(); int colSpan = aCell->GetColSpan(); if (gsDebug==PR_TRUE) printf(" BuildCellIntoMap. rowSpan = %d, colSpan = %d\n", rowSpan, colSpan); // Grow the mCellMap array if we will end up addressing // some new columns. if (mCellMap->GetColCount() < (aColIndex + colSpan)) { if (gsDebug==PR_TRUE) printf(" calling GrowCellMap(%d)\n", aColIndex+colSpan); GrowCellMap (aColIndex + colSpan); } if (mCellMap->GetRowCount() < (aRowIndex+1)) { printf("*********************************************** calling GrowToRow(%d)\n", aRowIndex+1); mCellMap->GrowToRow(aRowIndex+1); } // Setup CellMap for this cell in the table CellData *data = new CellData (); data->mCell = aCell; data->mRealCell = data; if (gsDebug==PR_TRUE) printf(" calling mCellMap->SetCellAt(data, %d, %d)\n", aRowIndex, aColIndex); mCellMap->SetCellAt(data, aRowIndex, aColIndex); // Create CellData objects for the rows that this cell spans. Set // their mCell to nsnull and their mRealCell to point to data. If // there were no column overlaps then we could use the same // CellData object for each row that we span... if ((1 < rowSpan) || (1 < colSpan)) { if (gsDebug==PR_TRUE) printf(" spans\n"); for (int rowIndex = 0; rowIndex < rowSpan; rowIndex++) { if (gsDebug==PR_TRUE) printf(" rowIndex = %d\n", rowIndex); int workRow = aRowIndex + rowIndex; if (gsDebug==PR_TRUE) printf(" workRow = %d\n", workRow); for (int colIndex = 0; colIndex < colSpan; colIndex++) { if (gsDebug==PR_TRUE) printf(" colIndex = %d\n", colIndex); int workCol = aColIndex + colIndex; if (gsDebug==PR_TRUE) printf(" workCol = %d\n", workCol); CellData *testData = mCellMap->GetCellAt(workRow, workCol); if (nsnull == testData) { CellData *spanData = new CellData (); spanData->mRealCell = data; if (gsDebug==PR_TRUE) printf(" null GetCellFrameAt(%d, %d) so setting to spanData\n", workRow, workCol); mCellMap->SetCellAt(spanData, workRow, workCol); } else if ((0 < rowIndex) || (0 < colIndex)) { // we overlap, replace existing data, it might be shared if (gsDebug==PR_TRUE) printf(" overlapping Cell from GetCellFrameAt(%d, %d) so setting to spanData\n", workRow, workCol); CellData *overlap = new CellData (); overlap->mCell = testData->mCell; overlap->mRealCell = testData->mRealCell; overlap->mOverlap = data; mCellMap->SetCellAt(overlap, workRow, workCol); } } } } } void nsTableFrame::GrowCellMap (PRInt32 aColCount) { if (nsnull!=mCellMap) { mCellMap->GrowToCol(aColCount); mColCount = aColCount; } } /* ***** Column Layout Data methods ***** */ /* * Lists the column layout data which turns * around and lists the cell layout data. * This is for debugging purposes only. */ void nsTableFrame::ListColumnLayoutData(FILE* out, PRInt32 aIndent) { nsTableFrame * firstInFlow = (nsTableFrame *)GetFirstInFlow(); if (this!=firstInFlow) { firstInFlow->ListColumnLayoutData(out, aIndent); return; } nsCellMap *cellMap = GetCellMap(); if (nsnull!=cellMap) { fprintf(out,"Column Layout Data \n"); PRInt32 numCols = GetColCount(); PRInt32 numRows = cellMap->GetRowCount(); for (PRInt32 colIndex = 0; colIndex= 0; ) fputs(" ", out); fprintf(out,"Column Data [%d] \n",colIndex); for (PRInt32 rowIndex = 0; rowIndex < numRows; rowIndex++) { nsTableCellFrame *cellFrame = cellMap->GetCellFrameAt(rowIndex, colIndex); PRInt32 rowIndent; for (rowIndent = aIndent+2; --rowIndent >= 0; ) fputs(" ", out); fprintf(out,"Cell Data [%d] \n",rowIndex); for (rowIndent = aIndent+2; --rowIndent >= 0; ) fputs(" ", out); nsMargin margin; cellFrame->GetMargin(margin); fprintf(out,"Margin -- Top: %d Left: %d Bottom: %d Right: %d \n", NSTwipsToIntPoints(margin.top), NSTwipsToIntPoints(margin.left), NSTwipsToIntPoints(margin.bottom), NSTwipsToIntPoints(margin.right)); for (rowIndent = aIndent+2; --rowIndent >= 0; ) fputs(" ", out); /* nscoord top,left,bottom,right; top = (mBorderFrame[NS_SIDE_TOP] ? cellFrame->GetBorderWidth((nsIFrame*)mBorderFrame[NS_SIDE_TOP], NS_SIDE_TOP) : 0); left = (mBorderFrame[NS_SIDE_LEFT] ? cellFrame->GetBorderWidth((nsIFrame*)mBorderFrame[NS_SIDE_LEFT], NS_SIDE_LEFT) : 0); bottom = (mBorderFrame[NS_SIDE_BOTTOM] ? cellFrame->GetBorderWidth((nsIFrame*)mBorderFrame[NS_SIDE_BOTTOM], NS_SIDE_BOTTOM) : 0); right = (mBorderFrame[NS_SIDE_RIGHT] ? cellFrame->GetBorderWidth((nsIFrame*)mBorderFrame[NS_SIDE_RIGHT], NS_SIDE_RIGHT) : 0); fprintf(out,"Border -- Top: %d Left: %d Bottom: %d Right: %d \n", NSTwipsToIntPoints(top), NSTwipsToIntPoints(left), NSTwipsToIntPoints(bottom), NSTwipsToIntPoints(right)); */ } } } } /** * For the TableCell in CellData, add it to the list */ void nsTableFrame::AppendLayoutData(nsVoidArray* aList, nsTableCellFrame* aTableCell) { if (aTableCell != nsnull) { aList->AppendElement((void*)aTableCell); } } void nsTableFrame::RecalcLayoutData() { nsCellMap *cellMap = GetCellMap(); if (nsnull==cellMap) return; // no info yet, so nothing useful to do PRInt32 colCount = GetColCount(); PRInt32 rowCount = cellMap->GetRowCount(); PRInt32 row = 0; PRInt32 col = 0; nsTableCellFrame* above = nsnull; nsTableCellFrame* below = nsnull; nsTableCellFrame* left = nsnull; nsTableCellFrame* right = nsnull; PRInt32 edge = 0; nsVoidArray* boundaryCells[4]; for (edge = 0; edge < 4; edge++) boundaryCells[edge] = new nsVoidArray(); if (colCount != 0 && rowCount != 0) { for (row = 0; row < rowCount; row++) { for (col = 0; col < colCount; col++) { nsTableCellFrame* cell = nsnull; CellData* cellData = cellMap->GetCellAt(row,col); if (cellData) cell = cellData->mCell; if (nsnull==cell) continue; PRInt32 colSpan = cell->GetColSpan(); PRInt32 rowSpan = cell->GetRowSpan(); // clear the cells for all for edges for (edge = 0; edge < 4; edge++) boundaryCells[edge]->Clear(); // Check to see if the cell data represents the top,left // corner of a a table cell // Check to see if cell the represents a top edge cell if (0 == row) above = nsnull; else { cellData = cellMap->GetCellAt(row-1,col); if (nsnull != cellData) above = cellData->mRealCell->mCell; // Does the cell data point to the same cell? // If it is, then continue if ((nsnull != above) && (above == cell)) continue; } // Check to see if cell the represents a left edge cell if (0 == col) left = nsnull; else { cellData = cellMap->GetCellAt(row,col-1); if (cellData != nsnull) left = cellData->mRealCell->mCell; if ((nsnull != left) && (left == cell)) continue; } // If this is the top,left edged cell // Then add the cells on the for edges to the array // Do the top and bottom edge PRInt32 r,c; PRInt32 r1,r2; PRInt32 c1,c2; PRInt32 last; r1 = row - 1; r2 = row + rowSpan; c = col; last = col + colSpan -1; last = PR_MIN(last,colCount-1); while (c <= last) { if (r1 != -1) { // Add top edge cells if (c != col) { cellData = cellMap->GetCellAt(r1,c); if ((cellData != nsnull) && (cellData->mCell != above)) { above = cellData->mCell; if (above != nsnull) AppendLayoutData(boundaryCells[NS_SIDE_TOP],above); } } else if (above != nsnull) { AppendLayoutData(boundaryCells[NS_SIDE_TOP],above); } } if (r2 < rowCount) { // Add bottom edge cells cellData = cellMap->GetCellAt(r2,c); if ((cellData != nsnull) && cellData->mCell != below) { below = cellData->mCell; if (below != nsnull) AppendLayoutData(boundaryCells[NS_SIDE_BOTTOM],below); } } c++; } // Do the left and right edge c1 = col - 1; c2 = col + colSpan; r = row ; last = row + rowSpan-1; last = PR_MIN(last,rowCount-1); while (r <= last) { // Add left edge cells if (c1 != -1) { if (r != row) { cellData = cellMap->GetCellAt(r,c1); if ((cellData != nsnull) && (cellData->mCell != left)) { left = cellData->mCell; if (left != nsnull) AppendLayoutData(boundaryCells[NS_SIDE_LEFT],left); } } else if (left != nsnull) { AppendLayoutData(boundaryCells[NS_SIDE_LEFT],left); } } if (c2 < colCount) { // Add right edge cells cellData = cellMap->GetCellAt(r,c2); if ((cellData != nsnull) && (cellData->mCell != right)) { right = cellData->mCell; if (right != nsnull) AppendLayoutData(boundaryCells[NS_SIDE_RIGHT],right); } } r++; } cell->RecalcLayoutData(this,boundaryCells); } } } for (edge = 0; edge < 4; edge++) delete boundaryCells[edge]; } /* SEC: TODO: adjust the rect for captions */ NS_METHOD nsTableFrame::Paint(nsIPresContext& aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect) { // table paint code is concerned primarily with borders and bg color const nsStyleDisplay* disp = (const nsStyleDisplay*)mStyleContext->GetStyleData(eStyleStruct_Display); if (disp->mVisible) { const nsStyleSpacing* spacing = (const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing); const nsStyleColor* color = (const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color); nsRect rect(0, 0, mRect.width, mRect.height); nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this, aDirtyRect, rect, *color, 0, 0); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this, aDirtyRect, rect, *spacing, 0); } // for debug... if (nsIFrame::GetShowFrameBorders()) { aRenderingContext.SetColor(NS_RGB(0,128,0)); aRenderingContext.DrawRect(0, 0, mRect.width, mRect.height); } PaintChildren(aPresContext, aRenderingContext, aDirtyRect); return NS_OK; } PRBool nsTableFrame::NeedsReflow(const nsSize& aMaxSize) { PRBool result = PR_TRUE; if (PR_TRUE==mIsInvariantWidth) result = PR_FALSE; // TODO: other cases... return result; } nsresult nsTableFrame::AdjustSiblingsAfterReflow(nsIPresContext* aPresContext, InnerTableReflowState& aState, nsIFrame* aKidFrame, nscoord aDeltaY) { nsIFrame* lastKidFrame = aKidFrame; if (aDeltaY != 0) { // Move the frames that follow aKidFrame by aDeltaY nsIFrame* kidFrame; aKidFrame->GetNextSibling(kidFrame); while (nsnull != kidFrame) { nsPoint origin; // XXX We can't just slide the child if it has a next-in-flow kidFrame->GetOrigin(origin); origin.y += aDeltaY; // XXX We need to send move notifications to the frame... kidFrame->WillReflow(*aPresContext); kidFrame->MoveTo(origin.x, origin.y); // Get the next frame lastKidFrame = kidFrame; kidFrame->GetNextSibling(kidFrame); } } else { // Get the last frame lastKidFrame = LastFrame(mFirstChild); } // Update our running y-offset to reflect the bottommost child nsRect rect; lastKidFrame->GetRect(rect); aState.y = rect.YMost(); return NS_OK; } // SEC: TODO need to worry about continuing frames prev/next in flow for splitting across pages. // SEC: TODO need to keep "first pass done" state, update it when ContentChanged notifications come in /* overview: if mFirstPassValid is false, this is our first time through since content was last changed set pass to 1 do pass 1 get min/max info for all cells in an infinite space do column balancing set mFirstPassValid to true do pass 2 if pass is 1, set pass to 2 use column widths to ResizeReflow cells */ /* Layout the entire inner table. */ NS_METHOD nsTableFrame::Reflow(nsIPresContext& aPresContext, nsReflowMetrics& aDesiredSize, const nsReflowState& aReflowState, nsReflowStatus& aStatus) { if (gsDebug==PR_TRUE) { printf("-----------------------------------------------------------------\n"); printf("nsTableFrame::Reflow: table %p reason %d given maxSize=%d,%d\n", this, aReflowState.reason, aReflowState.maxSize.width, aReflowState.maxSize.height); } // Initialize out parameter if (nsnull != aDesiredSize.maxElementSize) { aDesiredSize.maxElementSize->width = 0; aDesiredSize.maxElementSize->height = 0; } aStatus = NS_FRAME_COMPLETE; if (eReflowReason_Incremental == aReflowState.reason) { const nsStyleSpacing* mySpacing = (const nsStyleSpacing*) mStyleContext->GetStyleData(eStyleStruct_Spacing); nsMargin myBorderPadding; mySpacing->CalcBorderPaddingFor(this, myBorderPadding); InnerTableReflowState state(&aPresContext, aReflowState, myBorderPadding); nsIFrame* target; aReflowState.reflowCommand->GetTarget(target); if (this == target) { NS_NOTYETIMPLEMENTED("unexpected reflow command"); } // XXX Deal with the case where the reflow command is targeted at us nsIFrame* kidFrame; aReflowState.reflowCommand->GetNext(kidFrame); // Remember the old rect nsRect oldKidRect; kidFrame->GetRect(oldKidRect); // Pass along the reflow command nsReflowMetrics desiredSize(nsnull); // XXX Correctly compute the available space... nsReflowState kidReflowState(kidFrame, aReflowState, aReflowState.maxSize); kidFrame->WillReflow(aPresContext); aStatus = ReflowChild(kidFrame, &aPresContext, desiredSize, kidReflowState); // Resize the row group frame nsRect kidRect; kidFrame->GetRect(kidRect); kidFrame->SizeTo(desiredSize.width, desiredSize.height); #if 1 // XXX For the time being just fall through and treat it like a // pass 2 reflow... mPass = kPASS_SECOND; // calling intialize here resets all the cached info based on new table content if (nsnull!=mTableLayoutStrategy) { mTableLayoutStrategy->Initialize(aDesiredSize.maxElementSize); } #else // XXX Hack... AdjustSiblingsAfterReflow(&aPresContext, state, kidFrame, desiredSize.height - oldKidRect.height); aDesiredSize.width = mRect.width; aDesiredSize.height = state.y + myBorderPadding.top + myBorderPadding.bottom; return NS_OK; #endif } if (PR_TRUE==NeedsReflow(aReflowState.maxSize)) { if (PR_FALSE==IsFirstPassValid()) { // XXX TROY: we used to rebuild the cellmap here for incremental reflow. // now that the cellmap is built in the constructor // we need to reset the cellmap during incremental reflow before we get here mPass = kPASS_FIRST; aStatus = ResizeReflowPass1(&aPresContext, aDesiredSize, aReflowState, aStatus); // check result } mPass = kPASS_SECOND; if (nsnull==mPrevInFlow) { // assign column widths, and assign aMaxElementSize->width BalanceColumnWidths(&aPresContext, aReflowState, aReflowState.maxSize, aDesiredSize.maxElementSize); // assign table width SetTableWidth(&aPresContext); } // Constrain our reflow width to the computed table width nsReflowState reflowState(aReflowState); reflowState.maxSize.width = mRect.width; aStatus = ResizeReflowPass2(&aPresContext, aDesiredSize, reflowState, 0, 0); mPass = kPASS_UNDEFINED; } else { // set aDesiredSize and aMaxElementSize } if (gsDebugNT==PR_TRUE) { if (nsnull!=aDesiredSize.maxElementSize) printf("%p: Inner table reflow complete, returning aDesiredSize = %d,%d and aMaxElementSize=%d,%d\n", this, aDesiredSize.width, aDesiredSize.height, aDesiredSize.maxElementSize->width, aDesiredSize.maxElementSize->height); else printf("%p: Inner table reflow complete, returning aDesiredSize = %d,%d and NSNULL aMaxElementSize\n", this, aDesiredSize.width, aDesiredSize.height); } if (PR_TRUE==gsDebug) printf("end reflow for table %p\n", this); return NS_OK; } /** the first of 2 reflow passes * lay out the captions and row groups in an infinite space (NS_UNCONSTRAINEDSIZE) * cache the results for each caption and cell. * if successful, set mFirstPassValid=PR_TRUE, so we know we can skip this step * next time. mFirstPassValid is set to PR_FALSE when content is changed. * NOTE: should never get called on a continuing frame! All cached pass1 state * is stored in the inner table first-in-flow. */ nsReflowStatus nsTableFrame::ResizeReflowPass1(nsIPresContext* aPresContext, nsReflowMetrics& aDesiredSize, const nsReflowState& aReflowState, nsReflowStatus& aStatus) { NS_PRECONDITION(aReflowState.frame == this, "bad reflow state"); NS_PRECONDITION(aReflowState.parentReflowState->frame == mGeometricParent, "bad parent reflow state"); NS_ASSERTION(nsnull!=aPresContext, "bad pres context param"); NS_ASSERTION(nsnull==mPrevInFlow, "illegal call, cannot call pass 1 on a continuing frame."); NS_ASSERTION(nsnull != mContent, "null content"); if (PR_TRUE==gsDebugNT) printf("%p nsTableFrame::ResizeReflow Pass1: maxSize=%d,%d\n", this, aReflowState.maxSize.width, aReflowState.maxSize.height); nsReflowStatus result = NS_FRAME_COMPLETE; nsSize availSize(NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE); // availSize is the space available at any given time in the process nsSize maxSize(0, 0); // maxSize is the size of the largest child so far in the process nsSize kidMaxSize(0,0); nsReflowMetrics kidSize(&kidMaxSize); nscoord y = 0; nscoord maxAscent = 0; nscoord maxDescent = 0; PRInt32 kidIndex = 0; PRInt32 lastIndex; mContent->ChildCount(lastIndex); PRInt32 contentOffset=0; nsIFrame* prevKidFrame = nsnull;/* XXX incremental reflow! */ // Compute the insets (sum of border and padding) const nsStyleSpacing* spacing = (const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing); nsMargin borderPadding; spacing->CalcBorderPaddingFor(this, borderPadding); nscoord topInset = borderPadding.top; nscoord rightInset = borderPadding.right; nscoord bottomInset = borderPadding.bottom; nscoord leftInset = borderPadding.left; nsReflowReason reflowReason = aReflowState.reason; nsStyleTable* tableStyle; GetStyleData(eStyleStruct_Table, (nsStyleStruct *&)tableStyle); if (NS_STYLE_TABLE_LAYOUT_FIXED!=tableStyle->mLayoutStrategy) { for (nsIFrame* kidFrame = mFirstChild; nsnull != kidFrame; kidFrame->GetNextSibling(kidFrame)) { const nsStyleDisplay *childDisplay; kidFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if ((NS_STYLE_DISPLAY_TABLE_HEADER_GROUP != childDisplay->mDisplay) && (NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP != childDisplay->mDisplay) && (NS_STYLE_DISPLAY_TABLE_ROW_GROUP != childDisplay->mDisplay) && (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP != childDisplay->mDisplay)) { continue; } nsSize maxKidElementSize(0,0); nsReflowState kidReflowState(kidFrame, aReflowState, availSize); PRInt32 yCoord = y; if (NS_UNCONSTRAINEDSIZE!=yCoord) yCoord+= topInset; kidFrame->WillReflow(*aPresContext); kidFrame->MoveTo(leftInset, yCoord); result = ReflowChild(kidFrame, aPresContext, kidSize, kidReflowState); // Place the child since some of its content fit in us. if (PR_TRUE==gsDebugNT) { printf ("%p: reflow of row group returned desired=%d,%d, max-element=%d,%d\n", this, kidSize.width, kidSize.height, kidMaxSize.width, kidMaxSize.height); } kidFrame->SetRect(nsRect(leftInset, yCoord, kidSize.width, kidSize.height)); if (NS_UNCONSTRAINEDSIZE==kidSize.height) y = NS_UNCONSTRAINEDSIZE; else y += kidSize.height; if (kidMaxSize.width > maxSize.width) { maxSize.width = kidMaxSize.width; } if (kidMaxSize.height > maxSize.height) { maxSize.height = kidMaxSize.height; } if (NS_FRAME_IS_NOT_COMPLETE(result)) { // If the child didn't finish layout then it means that it used // up all of our available space (or needs us to split). break; } } } BuildColumnCache(aPresContext, aDesiredSize, aReflowState, aStatus); // Recalculate Layout Dependencies RecalcLayoutData(); aDesiredSize.width = kidSize.width; mFirstPassValid = PR_TRUE; return result; } /** the second of 2 reflow passes */ nsReflowStatus nsTableFrame::ResizeReflowPass2(nsIPresContext* aPresContext, nsReflowMetrics& aDesiredSize, const nsReflowState& aReflowState, PRInt32 aMinCaptionWidth, PRInt32 mMaxCaptionWidth) { //DumpCellMap(); NS_PRECONDITION(aReflowState.frame == this, "bad reflow state"); NS_PRECONDITION(aReflowState.parentReflowState->frame == mGeometricParent, "bad parent reflow state"); if (PR_TRUE==gsDebugNT) printf("%p nsTableFrame::ResizeReflow Pass2: maxSize=%d,%d\n", this, aReflowState.maxSize.width, aReflowState.maxSize.height); nsReflowStatus result = NS_FRAME_COMPLETE; const nsStyleSpacing* mySpacing = (const nsStyleSpacing*) mStyleContext->GetStyleData(eStyleStruct_Spacing); nsMargin myBorderPadding; mySpacing->CalcBorderPaddingFor(this, myBorderPadding); InnerTableReflowState state(aPresContext, aReflowState, myBorderPadding); // now that we've computed the column width information, reflow all children nsIContent* c = mContent; NS_ASSERTION(nsnull != c, "null kid"); nsSize kidMaxSize(0,0); PRInt32 kidIndex = 0; PRInt32 lastIndex; c->ChildCount(lastIndex); nsIFrame* prevKidFrame = nsnull;/* XXX incremental reflow! */ #ifdef NS_DEBUG //PreReflowCheck(); #endif PRBool reflowMappedOK = PR_TRUE; nsReflowStatus status = NS_FRAME_COMPLETE; // Check for an overflow list MoveOverflowToChildList(); // Reflow the existing frames if (nsnull != mFirstChild) { reflowMappedOK = ReflowMappedChildren(aPresContext, state, aDesiredSize.maxElementSize); if (PR_FALSE == reflowMappedOK) { status = NS_FRAME_NOT_COMPLETE; } } // Did we successfully reflow our mapped children? if (PR_TRUE == reflowMappedOK) { // Any space left? PRInt32 numKids; mContent->ChildCount(numKids); if (state.availSize.height > 0) { // Try and pull-up some children from a next-in-flow if (!PullUpChildren(aPresContext, state, aDesiredSize.maxElementSize)) { // We were unable to pull-up all the existing frames from the // next in flow status = NS_FRAME_NOT_COMPLETE; } } } // Return our size and our status aDesiredSize.width = ComputeDesiredWidth(aReflowState); aDesiredSize.height = state.y + myBorderPadding.top + myBorderPadding.bottom; if (NS_FRAME_IS_NOT_COMPLETE(status)) { // Don't forget to add in the bottom margin from our last child. // Only add it in if there's room for it. nscoord margin = state.prevMaxPosBottomMargin - state.prevMaxNegBottomMargin; if (state.availSize.height >= margin) { state.y += margin; } } mPass = kPASS_UNDEFINED; // we're no longer in-process #ifdef NS_DEBUG //PostReflowCheck(status); #endif return status; } nscoord nsTableFrame::ComputeDesiredWidth(const nsReflowState& aReflowState) const { nscoord desiredWidth=aReflowState.maxSize.width; // this is the biggest hack in the world. But there's no other rational way to handle nested percent tables nsStylePosition* position; PRBool isNested=IsNested(aReflowState, position); if((eReflowReason_Initial==aReflowState.reason) && (PR_TRUE==isNested) && (eStyleUnit_Percent==position->mWidth.GetUnit())) { desiredWidth = mTableLayoutStrategy->GetTableMaxWidth(); } return desiredWidth; } // Collapse child's top margin with previous bottom margin nscoord nsTableFrame::GetTopMarginFor(nsIPresContext* aCX, InnerTableReflowState& aState, const nsMargin& aKidMargin) { nscoord margin; nscoord maxNegTopMargin = 0; nscoord maxPosTopMargin = 0; if ((margin = aKidMargin.top) < 0) { maxNegTopMargin = -margin; } else { maxPosTopMargin = margin; } nscoord maxPos = PR_MAX(aState.prevMaxPosBottomMargin, maxPosTopMargin); nscoord maxNeg = PR_MAX(aState.prevMaxNegBottomMargin, maxNegTopMargin); margin = maxPos - maxNeg; return margin; } // Position and size aKidFrame and update our reflow state. The origin of // aKidRect is relative to the upper-left origin of our frame, and includes // any left/top margin. void nsTableFrame::PlaceChild(nsIPresContext* aPresContext, InnerTableReflowState& aState, nsIFrame* aKidFrame, const nsRect& aKidRect, nsSize* aMaxElementSize, nsSize& aKidMaxElementSize) { if (PR_TRUE==gsDebug) printf ("table: placing row group at %d, %d, %d, %d\n", aKidRect.x, aKidRect.y, aKidRect.width, aKidRect.height); // Place and size the child aKidFrame->SetRect(aKidRect); // Adjust the running y-offset aState.y += aKidRect.height; // If our height is constrained then update the available height if (PR_FALSE == aState.unconstrainedHeight) { aState.availSize.height -= aKidRect.height; } // If this is a footer row group, add it to the list of footer row groups const nsStyleDisplay *childDisplay; aKidFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if (NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay) { if (nsnull==aState.footerList) aState.footerList = new nsVoidArray(); aState.footerList->AppendElement((void *)aKidFrame); aState.footerHeight += aKidRect.height; } // else if this is a body row group, push down all the footer row groups else { // don't bother unless there are footers to push down if (nsnull!=aState.footerList && 0!=aState.footerList->Count()) { nsPoint origin; aKidFrame->GetOrigin(origin); origin.y -= aState.footerHeight; aKidFrame->MoveTo(origin.x, origin.y); // XXX do we need to check for headers here also, or is that implicit? if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay) { PRInt32 numFooters = aState.footerList->Count(); for (PRInt32 footerIndex = 0; footerIndex < numFooters; footerIndex++) { nsTableRowGroupFrame * footer = (nsTableRowGroupFrame *)(aState.footerList->ElementAt(footerIndex)); NS_ASSERTION(nsnull!=footer, "bad footer list in table inner frame."); if (nsnull!=footer) { footer->GetOrigin(origin); origin.y += aKidRect.height; footer->MoveTo(origin.x, origin.y); } } } } } if (nsnull != aMaxElementSize) { nsMargin borderPadding; const nsStyleSpacing* tableSpacing; // begin REMOVE_ME_WHEN_TABLE_STYLE_IS_RESOLVED! nsIFrame * parent = nsnull; GetStyleData(eStyleStruct_Spacing , ((nsStyleStruct *&)tableSpacing)); tableSpacing->CalcBorderPaddingFor(this, borderPadding); nscoord cellSpacing = GetCellSpacing(); nscoord kidWidth = aKidMaxElementSize.width + borderPadding.left + borderPadding.right + cellSpacing*2; aMaxElementSize->width = PR_MAX(aMaxElementSize->width, kidWidth); aMaxElementSize->height += aKidMaxElementSize.height; if (gsDebug) printf("%p placeChild set MES->width to %d\n", this, aMaxElementSize->width); } } /** * Reflow the frames we've already created * * @param aPresContext presentation context to use * @param aState current inline state * @return true if we successfully reflowed all the mapped children and false * otherwise, e.g. we pushed children to the next in flow */ PRBool nsTableFrame::ReflowMappedChildren( nsIPresContext* aPresContext, InnerTableReflowState& aState, nsSize* aMaxElementSize) { NS_PRECONDITION(nsnull != mFirstChild, "no children"); PRInt32 childCount = 0; nsIFrame* prevKidFrame = nsnull; nsSize kidMaxElementSize(0,0); nsSize* pKidMaxElementSize = (nsnull != aMaxElementSize) ? &kidMaxElementSize : nsnull; PRBool result = PR_TRUE; nsReflowReason reason; nsStyleTable* tableStyle; GetStyleData(eStyleStruct_Table, (nsStyleStruct *&)tableStyle); if (NS_STYLE_TABLE_LAYOUT_FIXED==tableStyle->mLayoutStrategy) { reason = aState.reflowState.reason; } else reason = eReflowReason_Resize; for (nsIFrame* kidFrame = mFirstChild; nsnull != kidFrame; ) { nsSize kidAvailSize(aState.availSize); nsReflowMetrics desiredSize(pKidMaxElementSize); desiredSize.width=desiredSize.height=desiredSize.ascent=desiredSize.descent=0; nsReflowStatus status; const nsStyleDisplay *childDisplay; kidFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if ((NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == childDisplay->mDisplay) || (NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay) || (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay) || (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == childDisplay->mDisplay)) { // for all colgroups and rowgroups... const nsStyleSpacing* kidSpacing; kidFrame->GetStyleData(eStyleStruct_Spacing, ((nsStyleStruct *&)kidSpacing)); nsMargin kidMargin; kidSpacing->CalcMarginFor(kidFrame, kidMargin); nscoord topMargin = GetTopMarginFor(aPresContext, aState, kidMargin); nscoord bottomMargin = kidMargin.bottom; // Figure out the amount of available size for the child (subtract // off the top margin we are going to apply to it) if (PR_FALSE == aState.unconstrainedHeight) { kidAvailSize.height -= topMargin; } // Subtract off for left and right margin if (PR_FALSE == aState.unconstrainedWidth) { kidAvailSize.width -= kidMargin.left + kidMargin.right; } // Reflow the child into the available space nsReflowState kidReflowState(kidFrame, aState.reflowState, kidAvailSize, reason); kidFrame->WillReflow(*aPresContext); nscoord x = aState.leftInset + kidMargin.left; nscoord y = aState.topInset + aState.y + topMargin; kidFrame->MoveTo(x, y); status = ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState); // Did the child fit? if ((kidFrame != mFirstChild) && (desiredSize.height > kidAvailSize.height)) { // The child is too wide to fit in the available space, and it's // not our first child PushChildren(kidFrame, prevKidFrame); result = PR_FALSE; break; } // Place the child after taking into account it's margin aState.y += topMargin; nsRect kidRect (x, y, desiredSize.width, desiredSize.height); if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay ) { // we don't want to adjust the maxElementSize if this is an initial reflow // it was set by the TableLayoutStrategy and shouldn't be changed. nsSize *requestedMaxElementSize = nsnull; if (eReflowReason_Initial != aState.reflowState.reason) requestedMaxElementSize = aMaxElementSize; PlaceChild(aPresContext, aState, kidFrame, kidRect, requestedMaxElementSize, kidMaxElementSize); if (bottomMargin < 0) { aState.prevMaxNegBottomMargin = -bottomMargin; } else { aState.prevMaxPosBottomMargin = bottomMargin; } } childCount++; // Remember where we just were in case we end up pushing children prevKidFrame = kidFrame; // Special handling for incomplete children if (NS_FRAME_IS_NOT_COMPLETE(status)) { nsIFrame* kidNextInFlow; kidFrame->GetNextInFlow(kidNextInFlow); if (nsnull == kidNextInFlow) { // The child doesn't have a next-in-flow so create a continuing // frame. This hooks the child into the flow nsIFrame* continuingFrame; nsIStyleContext* kidSC; kidFrame->GetStyleContext(aPresContext, kidSC); kidFrame->CreateContinuingFrame(*aPresContext, this, kidSC, continuingFrame); NS_RELEASE(kidSC); NS_ASSERTION(nsnull != continuingFrame, "frame creation failed"); // Add the continuing frame to the sibling list nsIFrame* nextSib; kidFrame->GetNextSibling(nextSib); continuingFrame->SetNextSibling(nextSib); kidFrame->SetNextSibling(continuingFrame); } // We've used up all of our available space so push the remaining // children to the next-in-flow nsIFrame* nextSibling; kidFrame->GetNextSibling(nextSibling); if (nsnull != nextSibling) { PushChildren(nextSibling, kidFrame); } result = PR_FALSE; break; } } // Get the next child kidFrame->GetNextSibling(kidFrame); // XXX talk with troy about checking for available space here } // Update the child count return result; } /** * Try and pull-up frames from our next-in-flow * * @param aPresContext presentation context to use * @param aState current inline state * @return true if we successfully pulled-up all the children and false * otherwise, e.g. child didn't fit */ PRBool nsTableFrame::PullUpChildren(nsIPresContext* aPresContext, InnerTableReflowState& aState, nsSize* aMaxElementSize) { nsTableFrame* nextInFlow = (nsTableFrame*)mNextInFlow; nsSize kidMaxElementSize(0,0); nsSize* pKidMaxElementSize = (nsnull != aMaxElementSize) ? &kidMaxElementSize : nsnull; nsIFrame* prevKidFrame = LastFrame(mFirstChild); PRBool result = PR_TRUE; while (nsnull != nextInFlow) { nsReflowMetrics kidSize(pKidMaxElementSize); kidSize.width=kidSize.height=kidSize.ascent=kidSize.descent=0; nsReflowStatus status; // Get the next child nsIFrame* kidFrame = nextInFlow->mFirstChild; // Any more child frames? if (nsnull == kidFrame) { // No. Any frames on its overflow list? if (nsnull != nextInFlow->mOverflowList) { // Move the overflow list to become the child list nextInFlow->AppendChildren(nextInFlow->mOverflowList); nextInFlow->mOverflowList = nsnull; kidFrame = nextInFlow->mFirstChild; } else { // We've pulled up all the children, so move to the next-in-flow. nextInFlow->GetNextInFlow((nsIFrame*&)nextInFlow); continue; } } // See if the child fits in the available space. If it fits or // it's splittable then reflow it. The reason we can't just move // it is that we still need ascent/descent information nsSize kidFrameSize(0,0); nsSplittableType kidIsSplittable; kidFrame->GetSize(kidFrameSize); kidFrame->IsSplittable(kidIsSplittable); if ((kidFrameSize.height > aState.availSize.height) && NS_FRAME_IS_NOT_SPLITTABLE(kidIsSplittable)) { result = PR_FALSE; break; } nsReflowState kidReflowState(kidFrame, aState.reflowState, aState.availSize, eReflowReason_Resize); kidFrame->WillReflow(*aPresContext); status = ReflowChild(kidFrame, aPresContext, kidSize, kidReflowState); // Did the child fit? if ((kidSize.height > aState.availSize.height) && (nsnull != mFirstChild)) { // The child is too wide to fit in the available space, and it's // not our first child result = PR_FALSE; break; } // Advance y by the topMargin between children. Zero out the // topMargin in case this frame is continued because // continuations do not have a top margin. Update the prev // bottom margin state in the body reflow state so that we can // apply the bottom margin when we hit the next child (or // finish). //aState.y += topMargin; nsRect kidRect (0, 0, kidSize.width, kidSize.height); //kidRect.x += kidMol->margin.left; kidRect.y += aState.y; const nsStyleDisplay *childDisplay; kidFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay ) { PlaceChild(aPresContext, aState, kidFrame, kidRect, aMaxElementSize, *pKidMaxElementSize); } // Remove the frame from its current parent kidFrame->GetNextSibling(nextInFlow->mFirstChild); // Link the frame into our list of children kidFrame->SetGeometricParent(this); nsIFrame* contentParent; kidFrame->GetContentParent(contentParent); if (nextInFlow == contentParent) { kidFrame->SetContentParent(this); } if (nsnull == prevKidFrame) { mFirstChild = kidFrame; } else { prevKidFrame->SetNextSibling(kidFrame); } kidFrame->SetNextSibling(nsnull); // Remember where we just were in case we end up pushing children prevKidFrame = kidFrame; if (NS_FRAME_IS_NOT_COMPLETE(status)) { // No the child isn't complete nsIFrame* kidNextInFlow; kidFrame->GetNextInFlow(kidNextInFlow); if (nsnull == kidNextInFlow) { // The child doesn't have a next-in-flow so create a // continuing frame. The creation appends it to the flow and // prepares it for reflow. nsIFrame* continuingFrame; nsIStyleContext* kidSC; kidFrame->GetStyleContext(aPresContext, kidSC); kidFrame->CreateContinuingFrame(*aPresContext, this, kidSC, continuingFrame); NS_RELEASE(kidSC); NS_ASSERTION(nsnull != continuingFrame, "frame creation failed"); // Add the continuing frame to our sibling list and then push // it to the next-in-flow. This ensures the next-in-flow's // content offsets and child count are set properly. Note that // we can safely assume that the continuation is complete so // we pass PR_TRUE into PushChidren kidFrame->SetNextSibling(continuingFrame); PushChildren(continuingFrame, kidFrame); } // If the child isn't complete then it means that we've used up // all of our available space. result = PR_FALSE; break; } } return result; } /** Now I've got all the cells laid out in an infinite space. For each column, use the min size for each cell in that column along with the attributes of the table, column group, and column to assign widths to each column. */ // use the cell map to determine which cell is in which column. void nsTableFrame::BalanceColumnWidths(nsIPresContext* aPresContext, const nsReflowState& aReflowState, const nsSize& aMaxSize, nsSize* aMaxElementSize) { NS_ASSERTION(nsnull==mPrevInFlow, "never ever call me on a continuing frame!"); NS_ASSERTION(nsnull!=mCellMap, "never ever call me until the cell map is built!"); PRInt32 numCols = GetColCount(); if (nsnull==mColumnWidths) { mColumnWidths = new PRInt32[numCols]; nsCRT::memset (mColumnWidths, 0, numCols*sizeof(PRInt32)); } const nsStyleSpacing* spacing = (const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing); nsMargin borderPadding; spacing->CalcBorderPaddingFor(this, borderPadding); // need to figure out the overall table width constraint // default case, get 100% of available space PRInt32 maxWidth; const nsStylePosition* position = (const nsStylePosition*)mStyleContext->GetStyleData(eStyleStruct_Position); switch (position->mWidth.GetUnit()) { case eStyleUnit_Coord: maxWidth = position->mWidth.GetCoordValue(); break; case eStyleUnit_Auto: maxWidth = aMaxSize.width; break; case eStyleUnit_Percent: case eStyleUnit_Proportional: case eStyleUnit_Inherit: // XXX for now these fall through default: maxWidth = aMaxSize.width; break; } if (0>maxWidth) // nonsense style specification maxWidth = 0; if (PR_TRUE==gsDebug || PR_TRUE==gsDebugNT) printf ("%p: maxWidth=%d from aMaxSize=%d,%d\n", this, maxWidth, aMaxSize.width, aMaxSize.height); // based on the compatibility mode, create a table layout strategy if (nsnull==mTableLayoutStrategy) { nsStyleTable* tableStyle; GetStyleData(eStyleStruct_Table, (nsStyleStruct *&)tableStyle); #if XXX if (NS_STYLE_TABLE_LAYOUT_FIXED==tableStyle->mLayoutStrategy) mTableLayoutStrategy = new FixedTableLayoutStrategy(this, numCols); else #endif mTableLayoutStrategy = new BasicTableLayoutStrategy(this, numCols); mTableLayoutStrategy->Initialize(aMaxElementSize); } mTableLayoutStrategy->BalanceColumnWidths(mStyleContext, aReflowState, maxWidth); } /** sum the width of each column add in table insets set rect */ void nsTableFrame::SetTableWidth(nsIPresContext* aPresContext) { NS_ASSERTION(nsnull==mPrevInFlow, "never ever call me on a continuing frame!"); NS_ASSERTION(nsnull!=mCellMap, "never ever call me until the cell map is built!"); nscoord cellSpacing = GetCellSpacing(); if (gsDebug==PR_TRUE) printf ("SetTableWidth with cellSpacing = %d ", cellSpacing); PRInt32 tableWidth = cellSpacing; PRInt32 numCols = GetColCount(); for (PRInt32 colIndex = 0; colIndexGetStyleData(eStyleStruct_Spacing); nsMargin borderPadding; spacing->CalcBorderPaddingFor(this, borderPadding); nscoord rightInset = borderPadding.right; nscoord leftInset = borderPadding.left; tableWidth += (leftInset + rightInset); nsRect tableSize = mRect; tableSize.width = tableWidth; if (PR_TRUE==gsDebug || PR_TRUE==gsDebugNT) { printf ("%p: setting table rect to %d, %d after adding insets %d, %d\n", this, tableSize.width, tableSize.height, rightInset, leftInset); } SetRect(tableSize); } void nsTableFrame::VerticallyAlignChildren(nsIPresContext* aPresContext, nscoord* aAscents, nscoord aMaxAscent, nscoord aMaxHeight) { } void nsTableFrame::AdjustColumnsForCOLSAttribute() { nsCellMap *cellMap = GetCellMap(); NS_ASSERTION(nsnull!=cellMap, "bad cell map"); // any specified-width column turns off COLS attribute nsStyleTable* tableStyle = (nsStyleTable *)mStyleContext->GetMutableStyleData(eStyleStruct_Table); if (tableStyle->mCols != NS_STYLE_TABLE_COLS_NONE) { PRInt32 numCols = GetColCount(); PRInt32 numRows = GetRowCount(); for (PRInt32 rowIndex=0; rowIndexGetCellFrameAt(rowIndex, colIndex); // get the cell style info const nsStylePosition* cellPosition; if (nsnull!=cellFrame) { cellFrame->GetStyleData(eStyleStruct_Position, (const nsStyleStruct *&)cellPosition); if ((eStyleUnit_Coord == cellPosition->mWidth.GetUnit()) || (eStyleUnit_Percent==cellPosition->mWidth.GetUnit())) { tableStyle->mCols = NS_STYLE_TABLE_COLS_NONE; break; } } } } } } NS_METHOD nsTableFrame::SetColumnStyleFromCell(nsIPresContext * aPresContext, nsTableCellFrame* aCellFrame, nsTableRowFrame * aRowFrame) { // if this cell is the first non-col-spanning cell to have a width attribute, // then the width attribute also acts as the width attribute for the entire column // if the cell has a colspan, the width is used provisionally, divided equally among // the spanned columns if ((nsnull!=aPresContext) && (nsnull!=aCellFrame) && (nsnull!=aRowFrame)) { // get the cell style info const nsStylePosition* cellPosition; aCellFrame->GetStyleData(eStyleStruct_Position, (const nsStyleStruct *&)cellPosition); if ((eStyleUnit_Coord == cellPosition->mWidth.GetUnit()) || (eStyleUnit_Percent==cellPosition->mWidth.GetUnit())) { // compute the width per column spanned PRInt32 colSpan = GetEffectiveColSpan(aCellFrame->GetColIndex(), aCellFrame); for (PRInt32 i=0; iGetColIndex(), colFrame); if (nsTableColFrame::eWIDTH_SOURCE_CELL != colFrame->GetWidthSource()) { if ((1==colSpan) || (nsTableColFrame::eWIDTH_SOURCE_CELL_WITH_SPAN != colFrame->GetWidthSource())) { // get the column style and set the width attribute nsIStyleContext *colSC; colFrame->GetStyleContext(aPresContext, colSC); nsStylePosition* colPosition = (nsStylePosition*) colSC->GetMutableStyleData(eStyleStruct_Position); NS_RELEASE(colSC); // set the column width attribute if (eStyleUnit_Coord == cellPosition->mWidth.GetUnit()) { nscoord width = cellPosition->mWidth.GetCoordValue(); colPosition->mWidth.SetCoordValue(width/colSpan); } else { float width = cellPosition->mWidth.GetPercentValue(); colPosition->mWidth.SetPercentValue(width/colSpan); } // set the column width-set-type if (1==colSpan) colFrame->SetWidthSource(nsTableColFrame::eWIDTH_SOURCE_CELL); else colFrame->SetWidthSource(nsTableColFrame::eWIDTH_SOURCE_CELL_WITH_SPAN); } } } } } return NS_OK; } /* there's an easy way and a hard way. The easy way is to look in our * cache and pull the frame from there. * If the cache isn't built yet, then we have to go hunting. */ NS_METHOD nsTableFrame::GetColumnFrame(PRInt32 aColIndex, nsTableColFrame *&aColFrame) { aColFrame = nsnull; // initialize out parameter nsCellMap *cellMap = GetCellMap(); if (nsnull!=cellMap) { // hooray, we get to do this the easy way because the info is cached aColFrame = cellMap->GetColumnFrame(aColIndex); } else { // ah shucks, we have to go hunt for the column frame brute-force style nsIFrame *childFrame; FirstChild(childFrame); for (;;) { if (nsnull==childFrame) { NS_ASSERTION (PR_FALSE, "scanned the frame hierarchy and no column frame could be found."); break; } const nsStyleDisplay *childDisplay; childFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == childDisplay->mDisplay) { PRInt32 colGroupStartingIndex = ((nsTableColGroupFrame *)childFrame)->GetStartColumnIndex(); if (aColIndex >= colGroupStartingIndex) { // the cell's col might be in this col group PRInt32 colCount = ((nsTableColGroupFrame *)childFrame)->GetColumnCount(); if (aColIndex < colGroupStartingIndex + colCount) { // yep, we've found it. GetColumnAt gives us the column at the offset colCount, not the absolute colIndex for the whole table aColFrame = ((nsTableColGroupFrame *)childFrame)->GetColumnAt(colCount); break; } } } childFrame->GetNextSibling(childFrame); } } NS_POSTCONDITION(nsnull!=aColFrame, "no column frame could be found."); return NS_OK; } /* We have to go through our child list twice. * The first time, we scan until we find the first row. * We set column style from the cells in the first row. * Then we terminate that loop and start a second pass. * In the second pass, we build column and cell cache info. */ void nsTableFrame::BuildColumnCache( nsIPresContext* aPresContext, nsReflowMetrics& aDesiredSize, const nsReflowState& aReflowState, nsReflowStatus& aStatus ) { // probably want this assertion : NS_ASSERTION(nsnull==mPrevInFlow, "never ever call me on a continuing frame!"); NS_ASSERTION(nsnull!=mCellMap, "never ever call me until the cell map is built!"); nsStyleTable* tableStyle; GetStyleData(eStyleStruct_Table, (nsStyleStruct *&)tableStyle); EnsureColumns(aPresContext); if (nsnull==mColCache) { mColCache = new ColumnInfoCache(mColCount); nsIFrame * childFrame = mFirstChild; while (nsnull!=childFrame) { // in this loop, we cache column info and set column style info from cells in first row const nsStyleDisplay *childDisplay; childFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == childDisplay->mDisplay) { // if it's a col group then get the columns and cache them in the CellMap nsTableColFrame *colFrame=nsnull; childFrame->FirstChild((nsIFrame *&)colFrame); while (nsnull!=colFrame) { mCellMap->AppendColumnFrame(colFrame); colFrame->GetNextSibling((nsIFrame *&)colFrame); } } else if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay ) { // if it's a row group, get the cells and set the column style if appropriate if (NS_STYLE_TABLE_LAYOUT_FIXED!=tableStyle->mLayoutStrategy) { nsIFrame *rowFrame; childFrame->FirstChild(rowFrame); while (nsnull!=rowFrame) { const nsStyleDisplay *rowDisplay; rowFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)rowDisplay)); if (NS_STYLE_DISPLAY_TABLE_ROW == rowDisplay->mDisplay) { nsIFrame *cellFrame; rowFrame->FirstChild(cellFrame); while (nsnull!=cellFrame) { /* this is the first time we are guaranteed to have both the cell frames * and the column frames, so it's a good time to * set the column style from the cell's width attribute (if this is the first row) */ const nsStyleDisplay *cellDisplay; cellFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)cellDisplay)); if (NS_STYLE_DISPLAY_TABLE_CELL == cellDisplay->mDisplay) SetColumnStyleFromCell(aPresContext, (nsTableCellFrame *)cellFrame, (nsTableRowFrame *)rowFrame); cellFrame->GetNextSibling(cellFrame); } } rowFrame->GetNextSibling(rowFrame); } } } childFrame->GetNextSibling(childFrame); } // second time through, set column cache info for each column // we can't do this until the loop above has set the column style info from the cells in the first row childFrame = mFirstChild; while (nsnull!=childFrame) { // for every child, if it's a col group then get the columns const nsStyleDisplay *childDisplay; childFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)childDisplay)); if (NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == childDisplay->mDisplay) { nsTableColFrame *colFrame=nsnull; childFrame->FirstChild((nsIFrame *&)colFrame); while (nsnull!=colFrame) { // for every column, create an entry in the column cache // assumes that the col style has been twiddled to account for first cell width attribute const nsStyleDisplay *colDisplay; colFrame->GetStyleData(eStyleStruct_Display, ((nsStyleStruct *&)colDisplay)); if (NS_STYLE_DISPLAY_TABLE_COLUMN == colDisplay->mDisplay) { const nsStylePosition* colPosition; colFrame->GetStyleData(eStyleStruct_Position, ((nsStyleStruct *&)colPosition)); mColCache->AddColumnInfo(colPosition->mWidth.GetUnit(), colFrame->GetColumnIndex()); } colFrame->GetNextSibling((nsIFrame *&)colFrame); } } else if (NS_STYLE_DISPLAY_TABLE_ROW_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == childDisplay->mDisplay || NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == childDisplay->mDisplay ) { break; // once we hit a row group, we're done } childFrame->GetNextSibling(childFrame); } } } PRInt32 nsTableFrame::GetReflowPass() const { nsTableFrame * firstInFlow = (nsTableFrame *)GetFirstInFlow(); NS_ASSERTION(nsnull!=firstInFlow, "illegal state -- no first in flow"); return firstInFlow->mPass; } void nsTableFrame::SetReflowPass(PRInt32 aReflowPass) { nsTableFrame * firstInFlow = (nsTableFrame *)GetFirstInFlow(); NS_ASSERTION(nsnull!=firstInFlow, "illegal state -- no first in flow"); firstInFlow->mPass = aReflowPass; } PRBool nsTableFrame::IsFirstPassValid() const { nsTableFrame * firstInFlow = (nsTableFrame *)GetFirstInFlow(); NS_ASSERTION(nsnull!=firstInFlow, "illegal state -- no first in flow"); return firstInFlow->mFirstPassValid; } NS_METHOD nsTableFrame::CreateContinuingFrame(nsIPresContext& aPresContext, nsIFrame* aParent, nsIStyleContext* aStyleContext, nsIFrame*& aContinuingFrame) { nsTableFrame* cf = new nsTableFrame(mContent, aParent); if (nsnull == cf) { return NS_ERROR_OUT_OF_MEMORY; } PrepareContinuingFrame(aPresContext, aParent, aStyleContext, cf); if (PR_TRUE==gsDebug) printf("nsTableFrame::CCF parent = %p, this=%p, cf=%p\n", aParent, this, cf); // set my width, because all frames in a table flow are the same width // code in nsTableOuterFrame depends on this being set cf->SetRect(nsRect(0, 0, mRect.width, 0)); // add headers and footers to cf nsTableFrame * firstInFlow = (nsTableFrame *)GetFirstInFlow(); nsIFrame * rg = nsnull; firstInFlow->FirstChild(rg); NS_ASSERTION (nsnull!=rg, "previous frame has no children"); PRInt32 index = 0; nsIFrame * bodyRowGroupFromOverflow = mOverflowList; nsIFrame * lastSib = nsnull; for ( ; nsnull!=rg; index++) { nsIContent *content = nsnull; rg->GetContent(content); // content: REFCNT++ NS_ASSERTION(nsnull!=content, "bad frame, returned null content."); const nsStyleDisplay* display; //XXX: TROY: this was just this->GetStyleData which can't be right rg->GetStyleData(eStyleStruct_Display, (const nsStyleStruct*&)display); if ((display->mDisplay == NS_STYLE_DISPLAY_TABLE_HEADER_GROUP) || (display->mDisplay == NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP)) { printf("found a head or foot in continuing frame\n"); // Resolve style for the child nsIStyleContext* kidStyleContext = aPresContext.ResolveStyleContextFor(content, cf); // kidStyleContext: REFCNT++ nsIFrame* duplicateFrame; NS_NewTableRowGroupFrame(content, cf, duplicateFrame); duplicateFrame->SetStyleContext(&aPresContext, kidStyleContext); NS_RELEASE(kidStyleContext); // kidStyleContenxt: REFCNT-- if (nsnull==lastSib) { mOverflowList = duplicateFrame; } else { lastSib->SetNextSibling(duplicateFrame); } duplicateFrame->SetNextSibling(bodyRowGroupFromOverflow); lastSib = duplicateFrame; } NS_RELEASE(content); // content: REFCNT-- // get the next row group rg->GetNextSibling(rg); } aContinuingFrame = cf; return NS_OK; } PRInt32 nsTableFrame::GetColumnWidth(PRInt32 aColIndex) { nsTableFrame * firstInFlow = (nsTableFrame *)GetFirstInFlow(); NS_ASSERTION(nsnull!=firstInFlow, "illegal state -- no first in flow"); PRInt32 result = 0; if (this!=firstInFlow) result = firstInFlow->GetColumnWidth(aColIndex); else { NS_ASSERTION(nsnull!=mColumnWidths, "illegal state"); #ifdef NS_DEBUG NS_ASSERTION(nsnull!=mCellMap, "no cell map"); PRInt32 numCols = GetColCount(); NS_ASSERTION (numCols > aColIndex, "bad arg, col index out of bounds"); #endif if (nsnull!=mColumnWidths) result = mColumnWidths[aColIndex]; } return result; } void nsTableFrame::SetColumnWidth(PRInt32 aColIndex, nscoord aWidth) { nsTableFrame * firstInFlow = (nsTableFrame *)GetFirstInFlow(); NS_ASSERTION(nsnull!=firstInFlow, "illegal state -- no first in flow"); if (this!=firstInFlow) firstInFlow->SetColumnWidth(aColIndex, aWidth); else { NS_ASSERTION(nsnull!=mColumnWidths, "illegal state"); if (nsnull!=mColumnWidths) mColumnWidths[aColIndex] = aWidth; } } /** * * Update the border style to map to the HTML border style * */ void nsTableFrame::MapHTMLBorderStyle(nsStyleSpacing& aSpacingStyle, nscoord aBorderWidth) { nsStyleCoord width; width.SetCoordValue(aBorderWidth); aSpacingStyle.mBorder.SetTop(width); aSpacingStyle.mBorder.SetLeft(width); aSpacingStyle.mBorder.SetBottom(width); aSpacingStyle.mBorder.SetRight(width); aSpacingStyle.mBorderStyle[NS_SIDE_TOP] = NS_STYLE_BORDER_STYLE_OUTSET; aSpacingStyle.mBorderStyle[NS_SIDE_LEFT] = NS_STYLE_BORDER_STYLE_OUTSET; aSpacingStyle.mBorderStyle[NS_SIDE_BOTTOM] = NS_STYLE_BORDER_STYLE_OUTSET; aSpacingStyle.mBorderStyle[NS_SIDE_RIGHT] = NS_STYLE_BORDER_STYLE_OUTSET; nsIStyleContext* styleContext = mStyleContext; const nsStyleColor* colorData = (const nsStyleColor*) styleContext->GetStyleData(eStyleStruct_Color); // Look until we find a style context with a NON-transparent background color while (styleContext) { if ((colorData->mBackgroundFlags & NS_STYLE_BG_COLOR_TRANSPARENT)!=0) { nsIStyleContext* temp = styleContext; styleContext = styleContext->GetParent(); if (temp != mStyleContext) NS_RELEASE(temp); colorData = (const nsStyleColor*)styleContext->GetStyleData(eStyleStruct_Color); } else { break; } } // Yaahoo, we found a style context which has a background color nscolor borderColor = 0xFFC0C0C0; if (styleContext != nsnull) { borderColor = colorData->mBackgroundColor; if (styleContext != mStyleContext) NS_RELEASE(styleContext); } // if the border color is white, then shift to grey if (borderColor == 0xFFFFFFFF) borderColor = 0xFFC0C0C0; aSpacingStyle.mBorderColor[NS_SIDE_TOP] = borderColor; aSpacingStyle.mBorderColor[NS_SIDE_LEFT] = borderColor; aSpacingStyle.mBorderColor[NS_SIDE_BOTTOM] = borderColor; aSpacingStyle.mBorderColor[NS_SIDE_RIGHT] = borderColor; } PRBool nsTableFrame::ConvertToPixelValue(nsHTMLValue& aValue, PRInt32 aDefault, PRInt32& aResult) { PRInt32 result = 0; if (aValue.GetUnit() == eHTMLUnit_Pixel) aResult = aValue.GetPixelValue(); else if (aValue.GetUnit() == eHTMLUnit_Empty) aResult = aDefault; else { NS_ERROR("Unit must be pixel or empty"); return PR_FALSE; } return PR_TRUE; } void nsTableFrame::MapBorderMarginPadding(nsIPresContext* aPresContext) { #if 0 // Check to see if the table has either cell padding or // Cell spacing defined for the table. If true, then // this setting overrides any specific border, margin or // padding information in the cell. If these attributes // are not defined, the the cells attributes are used nsHTMLValue padding_value; nsHTMLValue spacing_value; nsHTMLValue border_value; nsresult border_result; nscoord padding = 0; nscoord spacing = 0; nscoord border = 1; float p2t = aPresContext->GetPixelsToTwips(); nsIHTMLContent* table = (nsIHTMLContent*)mContent; NS_ASSERTION(table,"Table Must not be null"); if (!table) return; nsStyleSpacing* spacingData = (nsStyleSpacing*)mStyleContext->GetMutableStyleData(eStyleStruct_Spacing); border_result = table->GetAttribute(nsHTMLAtoms::border,border_value); if (border_result == NS_CONTENT_ATTR_HAS_VALUE) { PRInt32 intValue = 0; if (ConvertToPixelValue(border_value,1,intValue)) border = NSIntPixelsToTwips(intValue, p2t); } MapHTMLBorderStyle(*spacingData,border); #endif } // Subclass hook for style post processing NS_METHOD nsTableFrame::DidSetStyleContext(nsIPresContext* aPresContext) { #ifdef NOISY_STYLE printf("nsTableFrame::DidSetStyleContext \n"); #endif return NS_OK; } NS_METHOD nsTableFrame::GetCellMarginData(nsTableCellFrame* aKidFrame, nsMargin& aMargin) { nsresult result = NS_ERROR_NOT_INITIALIZED; if (nsnull != aKidFrame) { result = aKidFrame->GetMargin(aMargin); } return result; } nscoord nsTableFrame::GetCellSpacing() { nsTableFrame* tableFrame = this; nsStyleTable* tableStyle; GetStyleData(eStyleStruct_Table, (nsStyleStruct *&)tableStyle); nscoord cellSpacing = 0; if (tableStyle->mCellSpacing.GetUnit() == eStyleUnit_Coord) cellSpacing = tableStyle->mCellSpacing.GetCoordValue(); return cellSpacing; } void nsTableFrame::GetColumnsByType(const nsStyleUnit aType, PRInt32& aOutNumColumns, PRInt32 *& aOutColumnIndexes) { mColCache->GetColumnsByType(aType, aOutNumColumns, aOutColumnIndexes); } NS_METHOD nsTableFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr) { NS_PRECONDITION(0 != aInstancePtr, "null ptr"); if (NULL == aInstancePtr) { return NS_ERROR_NULL_POINTER; } if (aIID.Equals(kTableFrameCID)) { *aInstancePtr = (void*) (this); return NS_OK; } return nsContainerFrame::QueryInterface(aIID, aInstancePtr); } /* ----- global methods ----- */ nsresult NS_NewTableFrame(nsIContent* aContent, nsIFrame* aParentFrame, nsIFrame*& aResult) { nsIFrame* it = new nsTableFrame(aContent, aParentFrame); if (nsnull == it) { return NS_ERROR_OUT_OF_MEMORY; } aResult = it; return NS_OK; } NS_METHOD nsTableFrame::GetTableFrame(nsIFrame *aSourceFrame, nsTableFrame *& aOutFrame) { nsresult result = NS_OK; aOutFrame = nsnull; // initialize out-param if (nsnull!=aSourceFrame) { nsresult result = aSourceFrame->GetContentParent((nsIFrame *&)aOutFrame); while ((NS_OK==result) && (nsnull!=aOutFrame)) { const nsStyleDisplay *display; aOutFrame->GetStyleData(eStyleStruct_Display, (nsStyleStruct *&)display); if (NS_STYLE_DISPLAY_TABLE == display->mDisplay) break; result = aOutFrame->GetContentParent((nsIFrame *&)aOutFrame); } } else result = NS_ERROR_UNEXPECTED; // bad source param NS_POSTCONDITION(nsnull!=aOutFrame, "unable to find table parent. aOutFrame null."); NS_POSTCONDITION(NS_OK==result, "unable to find table parent. result!=NS_OK"); return result; } /* helper method for determining if this is a nested table or not */ PRBool nsTableFrame::IsNested(const nsReflowState& aReflowState, nsStylePosition *& aPosition) const { nsresult rv; PRBool result = PR_FALSE; #ifdef NS_DEBUG PRInt32 counter=0; #endif // Walk up the reflow state chain until we find a cell or the root const nsReflowState* rs = aReflowState.parentReflowState; while (nsnull != rs) { #ifdef NS_DEBUG counter++; NS_ASSERTION(counter<100000, "infinite loop in IsNested"); break; #endif nsIFrame* parentTable = nsnull; rv = rs->frame->QueryInterface(kTableFrameCID, (void**) &parentTable); if (NS_OK==rv) { result = PR_TRUE; parentTable->GetStyleData(eStyleStruct_Position, ((nsStyleStruct *&)aPosition)); break; } rs = rs->parentReflowState; } return result; } static PRBool IsPseudoFrame(nsIFrame* aFrame) { nsIContent* content; nsIFrame* parentFrame; PRBool result = PR_FALSE; aFrame->GetContent(content); aFrame->GetGeometricParent(parentFrame); if (nsnull != parentFrame) { nsIContent* parentContent; parentFrame->GetContent(parentContent); if (parentContent == content) { result = PR_TRUE; } NS_RELEASE(parentContent); } NS_RELEASE(content); return result; } /* helper method for getting the width of the table's containing block */ nscoord nsTableFrame::GetTableContainerWidth(const nsReflowState& aReflowState) { nsresult rv; nscoord parentWidth = aReflowState.maxSize.width; // Walk up the reflow state chain until we find a block // frame. Our width is computed relative to there. const nsReflowState* rs = &aReflowState; nsIFrame *childFrame=nsnull; nsIFrame *grandchildFrame=nsnull; nsIFrame *greatgrandchildFrame=nsnull; while (nsnull != rs) { // if it's a block, use its max width nsIFrame* block = nsnull; rv = rs->frame->QueryInterface(kBlockFrameCID, (void**) &block); if (NS_OK==rv) { // we found a block, see if it's really a table cell (which means we're a nested table) PRBool skipThisBlock=PR_FALSE; // XXX FIX ME... if (IsPseudoFrame(block)) { const nsReflowState* parentRS = rs->parentReflowState; if (nsnull!=parentRS) { parentRS = parentRS->parentReflowState; if (nsnull!=parentRS) { nsIFrame* cell = nsnull; rv = parentRS->frame->QueryInterface(kTableCellFrameCID, (void**) &cell); if (rv == NS_OK) { if (PR_TRUE==gsDebugNT) printf("%p: found a block pframe %p in a cell, skipping it.\n", aReflowState.frame, block); skipThisBlock = PR_TRUE; } } } } // at this point, we know we have a block. If we're sure it's not a table cell pframe, // then we can use it if (PR_FALSE==skipThisBlock) { if (NS_UNCONSTRAINEDSIZE!=rs->maxSize.width) { parentWidth = rs->maxSize.width; if (PR_TRUE==gsDebugNT) printf("%p: found a block frame %p, returning width %d\n", aReflowState.frame, block, parentWidth); break; } } } // or if it's another table (we're nested) use its computed width if (rs->frame!=aReflowState.frame) { nsMargin borderPadding; const nsStylePosition* tablePosition; const nsStyleSpacing* spacing; nsIFrame* cell = nsnull; rv = rs->frame->QueryInterface(kTableCellFrameCID, (void**) &cell); // if the cell has a specified width, use it if (NS_OK==rv) { // Compute and subtract out the insets (sum of border and padding) for the table const nsStylePosition* cellPosition; cell->GetStyleData(eStyleStruct_Position, ((nsStyleStruct *&)cellPosition)); if (eStyleUnit_Coord == cellPosition->mWidth.GetUnit()) { nsTableFrame *tableParent; rv=GetTableFrame(cell, tableParent); if ((NS_OK==rv) && (nsnull!=tableParent) && (nsnull!=tableParent->mColumnWidths)) { parentWidth=0; PRInt32 colIndex = ((nsTableCellFrame *)cell)->GetColIndex(); PRInt32 colSpan = tableParent->GetEffectiveColSpan(colIndex, (nsTableCellFrame *)cell); for (PRInt32 i=0; iGetColumnWidth(colIndex); break; } // if the column width of this cell is already computed, it overrides the attribute // otherwise, use the attribute becauase the actual column width has not yet been computed else { parentWidth = cellPosition->mWidth.GetCoordValue(); // subtract out cell border and padding cell->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing); spacing->CalcBorderPaddingFor(cell, borderPadding); parentWidth -= (borderPadding.right + borderPadding.left); if (PR_TRUE==gsDebugNT) printf("%p: found a cell frame %p with fixed coord width %d, returning parentWidth %d\n", aReflowState.frame, cell, cellPosition->mWidth.GetCoordValue(), parentWidth); break; } } } else { nsIFrame* table = nsnull; rv = rs->frame->QueryInterface(kTableFrameCID, (void**) &table); if (NS_OK==rv) { /* We found the nearest containing table (actually, the inner table). This defines what our percentage size is relative to. Use its desired width as the basis for computing our width. ********************************************************************************** Nav4 compatibility code: if the inner table has a percent width and the outer table has an auto width, the parentWidth is the width the containing cell would be without the inner table. ********************************************************************************** */ // Compute and subtract out the insets (sum of border and padding) for the table table->GetStyleData(eStyleStruct_Position, (const nsStyleStruct *&)tablePosition); table->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing); if (eStyleUnit_Auto == tablePosition->mWidth.GetUnit()) { parentWidth = NS_UNCONSTRAINEDSIZE; if (nsnull != ((nsTableFrame*)table)->mColumnWidths) { parentWidth=0; PRInt32 colIndex = ((nsTableCellFrame *)greatgrandchildFrame)->GetColIndex(); PRInt32 colSpan = ((nsTableFrame*)table)->GetEffectiveColSpan(colIndex, ((nsTableCellFrame *)greatgrandchildFrame)); for (PRInt32 i = 0; iGetColumnWidth(i+colIndex); // subtract out cell border and padding greatgrandchildFrame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing); spacing->CalcBorderPaddingFor(greatgrandchildFrame, borderPadding); parentWidth -= (borderPadding.right + borderPadding.left); if (PR_TRUE==gsDebugNT) printf("%p: found a table frame %p with auto width, returning parentWidth %d from cell in col %d with span %d\n", aReflowState.frame, table, parentWidth, colIndex, colSpan); } else { if (PR_TRUE==gsDebugNT) printf("%p: found a table frame %p with auto width, returning parentWidth %d because parent has no info yet.\n", aReflowState.frame, table, parentWidth); } } else { if (nsnull!=((nsTableFrame*)table)->mColumnWidths) { parentWidth=0; PRInt32 colIndex = ((nsTableCellFrame*)greatgrandchildFrame)->GetColIndex(); PRInt32 colSpan = ((nsTableFrame*)table)->GetEffectiveColSpan(colIndex, ((nsTableCellFrame *)greatgrandchildFrame)); for (PRInt32 i = 0; iGetColumnWidth(i+colIndex); if (eStyleUnit_Percent == tablePosition->mWidth.GetUnit()) { float percent = tablePosition->mWidth.GetPercentValue(); parentWidth = (nscoord)(percent*((float)parentWidth)); } } else { nsSize tableSize; table->GetSize(tableSize); parentWidth = tableSize.width; if (0!=tableSize.width) { // the table has been sized, so we can compute the available space for the child spacing->CalcBorderPaddingFor(rs->frame, borderPadding); parentWidth -= (borderPadding.right + borderPadding.left); // same for the row group childFrame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing); spacing->CalcBorderPaddingFor(childFrame, borderPadding); parentWidth -= (borderPadding.right + borderPadding.left); // same for the row grandchildFrame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing); spacing->CalcBorderPaddingFor(grandchildFrame, borderPadding); parentWidth -= (borderPadding.right + borderPadding.left); // same for the cell greatgrandchildFrame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing); spacing->CalcBorderPaddingFor(greatgrandchildFrame, borderPadding); parentWidth -= (borderPadding.right + borderPadding.left); } else { // the table has not yet been sized, so we need to infer the available space parentWidth = rs->maxSize.width; if (eStyleUnit_Percent == tablePosition->mWidth.GetUnit()) { float percent = tablePosition->mWidth.GetPercentValue(); parentWidth = (nscoord)(percent*((float)parentWidth)); } } } if (PR_TRUE==gsDebugNT) printf("%p: found a table frame %p, returning parentWidth %d \n", aReflowState.frame, table, parentWidth); } break; } } } if (nsnull==childFrame) childFrame = rs->frame; else if (nsnull==grandchildFrame) { grandchildFrame = childFrame; childFrame = rs->frame; } else { greatgrandchildFrame = grandchildFrame; grandchildFrame = childFrame; childFrame = rs->frame; } rs = rs->parentReflowState; } return parentWidth; } // aSpecifiedTableWidth is filled if the table witdth is not auto PRBool nsTableFrame::TableIsAutoWidth(nsTableFrame *aTableFrame, nsIStyleContext *aTableStyle, const nsReflowState& aReflowState, nscoord& aSpecifiedTableWidth) { NS_ASSERTION(nsnull!=aTableStyle, "bad arg - aTableStyle"); PRBool result = PR_TRUE; // the default if (nsnull!=aTableStyle) { nsStylePosition* tablePosition = (nsStylePosition*)aTableStyle->GetStyleData(eStyleStruct_Position); nsMargin borderPadding; const nsStyleSpacing* spacing; switch (tablePosition->mWidth.GetUnit()) { case eStyleUnit_Auto: // specified auto width case eStyleUnit_Proportional: // illegal for table, so ignored break; case eStyleUnit_Inherit: // get width of parent and see if it is a specified value or not // XXX for now, just return true break; case eStyleUnit_Coord: // XXX: subtract out this table frame's borderpadding? aSpecifiedTableWidth = tablePosition->mWidth.GetCoordValue(); aReflowState.frame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing); spacing->CalcBorderPaddingFor(aReflowState.frame, borderPadding); aSpecifiedTableWidth -= (borderPadding.right + borderPadding.left); result = PR_FALSE; break; case eStyleUnit_Percent: // set aSpecifiedTableWidth to be the given percent of the parent. // first, get the effective parent width (parent width - insets) nscoord parentWidth = nsTableFrame::GetTableContainerWidth(aReflowState); if (NS_UNCONSTRAINEDSIZE!=parentWidth) { aReflowState.frame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing); spacing->CalcBorderPaddingFor(aReflowState.frame, borderPadding); parentWidth -= (borderPadding.right + borderPadding.left); // then set aSpecifiedTableWidth to the given percent of the computed parent width float percent = tablePosition->mWidth.GetPercentValue(); aSpecifiedTableWidth = (PRInt32)(parentWidth*percent); if (PR_TRUE==gsDebug || PR_TRUE==gsDebugNT) printf("%p: TableIsAutoWidth setting aSpecifiedTableWidth = %d with parentWidth = %d and percent = %f\n", aTableFrame, aSpecifiedTableWidth, parentWidth, percent); } else { aSpecifiedTableWidth=parentWidth; if (PR_TRUE==gsDebug || PR_TRUE==gsDebugNT) printf("%p: TableIsAutoWidth setting aSpecifiedTableWidth = %d with parentWidth = %d\n", aTableFrame, aSpecifiedTableWidth, parentWidth); } result = PR_FALSE; break; } } return result; } /* ----- debugging methods ----- */ NS_METHOD nsTableFrame::List(FILE* out, PRInt32 aIndent, nsIListFilter *aFilter) const { // if a filter is present, only output this frame if the filter says we should // since this could be any "tag" with the right display type, we'll // just pretend it's a table if (nsnull==aFilter) return nsContainerFrame::List(out, aIndent, aFilter); nsAutoString tagString("table"); PRBool outputMe = aFilter->OutputTag(&tagString); if (PR_TRUE==outputMe) { // Indent for (PRInt32 i = aIndent; --i >= 0; ) fputs(" ", out); // Output the tag and rect nsIAtom* tag; mContent->GetTag(tag); if (tag != nsnull) { nsAutoString buf; tag->ToString(buf); fputs(buf, out); NS_RELEASE(tag); } PRInt32 contentIndex; GetContentIndex(contentIndex); fprintf(out, "(%d)", contentIndex); out << mRect; if (0 != mState) { fprintf(out, " [state=%08x]", mState); } fputs("\n", out); if (nsnull!=mTableLayoutStrategy) { for (PRInt32 i = aIndent; --i >= 0; ) fputs(" ", out); fprintf(out, "min=%d, max=%d, fixed=%d, cols=%d, numCols=%d\n", mTableLayoutStrategy->GetTableMinWidth(), mTableLayoutStrategy->GetTableMaxWidth(), mTableLayoutStrategy->GetTableFixedWidth(), mTableLayoutStrategy->GetCOLSAttribute(), mTableLayoutStrategy->GetNumCols() ); } } // Output the children if (nsnull != mFirstChild) { if (PR_TRUE==outputMe) { if (0 != mState) { fprintf(out, " [state=%08x]\n", mState); } } for (nsIFrame* child = mFirstChild; child; child->GetNextSibling(child)) { child->List(out, aIndent + 1, aFilter); } } else { if (PR_TRUE==outputMe) { if (0 != mState) { fprintf(out, " [state=%08x]\n", mState); } } } return NS_OK; }