| /** |
| * This file is part of the DOM implementation for KDE. |
| * |
| * Copyright (C) 1997 Martin Jones (mjones@kde.org) |
| * (C) 1997 Torben Weis (weis@kde.org) |
| * (C) 1998 Waldo Bastian (bastian@kde.org) |
| * (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc. |
| * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com) |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include "RenderTableSection.h" |
| |
| #include "CachedImage.h" |
| #include "Document.h" |
| #include "HTMLNames.h" |
| #include "RenderTableCell.h" |
| #include "RenderTableCol.h" |
| #include "RenderTableRow.h" |
| #include "RenderView.h" |
| #include "TextStream.h" |
| #include <limits> |
| #include <wtf/Vector.h> |
| |
| using namespace std; |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| RenderTableSection::RenderTableSection(Node* node) |
| : RenderContainer(node) |
| , m_gridRows(0) |
| , m_cCol(0) |
| , m_cRow(-1) |
| , m_needsCellRecalc(false) |
| , m_outerBorderLeft(0) |
| , m_outerBorderRight(0) |
| , m_outerBorderTop(0) |
| , m_outerBorderBottom(0) |
| , m_overflowLeft(0) |
| , m_overflowWidth(0) |
| , m_overflowTop(0) |
| , m_overflowHeight(0) |
| , m_hasOverflowingCell(false) |
| { |
| // init RenderObject attributes |
| setInline(false); // our object is not Inline |
| } |
| |
| RenderTableSection::~RenderTableSection() |
| { |
| clearGrid(); |
| } |
| |
| void RenderTableSection::destroy() |
| { |
| RenderTable* recalcTable = table(); |
| |
| RenderContainer::destroy(); |
| |
| // recalc cell info because RenderTable has unguarded pointers |
| // stored that point to this RenderTableSection. |
| if (recalcTable) |
| recalcTable->setNeedsSectionRecalc(); |
| } |
| |
| void RenderTableSection::setStyle(RenderStyle* newStyle) |
| { |
| // we don't allow changing this one |
| if (style()) |
| newStyle->setDisplay(style()->display()); |
| else if (newStyle->display() != TABLE_FOOTER_GROUP && newStyle->display() != TABLE_HEADER_GROUP) |
| newStyle->setDisplay(TABLE_ROW_GROUP); |
| |
| RenderContainer::setStyle(newStyle); |
| } |
| |
| void RenderTableSection::addChild(RenderObject* child, RenderObject* beforeChild) |
| { |
| // Make sure we don't append things after :after-generated content if we have it. |
| if (!beforeChild && isAfterContent(lastChild())) |
| beforeChild = lastChild(); |
| |
| bool isTableSection = element() && (element()->hasTagName(theadTag) || element()->hasTagName(tbodyTag) || element()->hasTagName(tfootTag)); |
| |
| if (!child->isTableRow()) { |
| if (isTableSection && child->element() && child->element()->hasTagName(formTag) && document()->isHTMLDocument()) { |
| RenderContainer::addChild(child, beforeChild); |
| return; |
| } |
| |
| RenderObject* last = beforeChild; |
| if (!last) |
| last = lastChild(); |
| if (last && last->isAnonymous()) { |
| last->addChild(child); |
| return; |
| } |
| |
| // If beforeChild is inside an anonymous cell/row, insert into the cell or into |
| // the anonymous row containing it, if there is one. |
| RenderObject* lastBox = last; |
| while (lastBox && lastBox->parent()->isAnonymous() && !lastBox->isTableRow()) |
| lastBox = lastBox->parent(); |
| if (lastBox && lastBox->isAnonymous()) { |
| lastBox->addChild(child, beforeChild); |
| return; |
| } |
| |
| RenderObject* row = new (renderArena()) RenderTableRow(document() /* anonymous table */); |
| RenderStyle* newStyle = new (renderArena()) RenderStyle(); |
| newStyle->inheritFrom(style()); |
| newStyle->setDisplay(TABLE_ROW); |
| row->setStyle(newStyle); |
| addChild(row, beforeChild); |
| row->addChild(child); |
| return; |
| } |
| |
| if (beforeChild) |
| setNeedsCellRecalc(); |
| |
| ++m_cRow; |
| m_cCol = 0; |
| |
| // make sure we have enough rows |
| if (!ensureRows(m_cRow + 1)) |
| return; |
| |
| m_grid[m_cRow].rowRenderer = child; |
| |
| if (!beforeChild) { |
| m_grid[m_cRow].height = child->style()->height(); |
| if (m_grid[m_cRow].height.isRelative()) |
| m_grid[m_cRow].height = Length(); |
| } |
| |
| // If the next renderer is actually wrapped in an anonymous table row, we need to go up and find that. |
| while (beforeChild && !beforeChild->isTableRow()) |
| beforeChild = beforeChild->parent(); |
| |
| RenderContainer::addChild(child, beforeChild); |
| } |
| |
| bool RenderTableSection::ensureRows(int numRows) |
| { |
| int nRows = m_gridRows; |
| if (numRows > nRows) { |
| if (numRows > static_cast<int>(m_grid.size())) { |
| size_t maxSize = numeric_limits<size_t>::max() / sizeof(RowStruct); |
| if (static_cast<size_t>(numRows) > maxSize) |
| return false; |
| m_grid.resize(numRows); |
| } |
| m_gridRows = numRows; |
| int nCols = table()->numEffCols(); |
| CellStruct emptyCellStruct; |
| emptyCellStruct.cell = 0; |
| emptyCellStruct.inColSpan = false; |
| for (int r = nRows; r < numRows; r++) { |
| m_grid[r].row = new Row(nCols); |
| m_grid[r].row->fill(emptyCellStruct); |
| m_grid[r].rowRenderer = 0; |
| m_grid[r].baseline = 0; |
| m_grid[r].height = Length(); |
| } |
| } |
| |
| return true; |
| } |
| |
| void RenderTableSection::addCell(RenderTableCell* cell, RenderObject* row) |
| { |
| int rSpan = cell->rowSpan(); |
| int cSpan = cell->colSpan(); |
| Vector<RenderTable::ColumnStruct>& columns = table()->columns(); |
| int nCols = columns.size(); |
| |
| // ### mozilla still seems to do the old HTML way, even for strict DTD |
| // (see the annotation on table cell layouting in the CSS specs and the testcase below: |
| // <TABLE border> |
| // <TR><TD>1 <TD rowspan="2">2 <TD>3 <TD>4 |
| // <TR><TD colspan="2">5 |
| // </TABLE> |
| |
| while (m_cCol < nCols && (cellAt(m_cRow, m_cCol).cell || cellAt(m_cRow, m_cCol).inColSpan)) |
| m_cCol++; |
| |
| if (rSpan == 1) { |
| // we ignore height settings on rowspan cells |
| Length height = cell->style()->height(); |
| if (height.isPositive() || (height.isRelative() && height.value() >= 0)) { |
| Length cRowHeight = m_grid[m_cRow].height; |
| switch (height.type()) { |
| case Percent: |
| if (!(cRowHeight.isPercent()) || |
| (cRowHeight.isPercent() && cRowHeight.rawValue() < height.rawValue())) |
| m_grid[m_cRow].height = height; |
| break; |
| case Fixed: |
| if (cRowHeight.type() < Percent || |
| (cRowHeight.isFixed() && cRowHeight.value() < height.value())) |
| m_grid[m_cRow].height = height; |
| break; |
| case Relative: |
| default: |
| break; |
| } |
| } |
| } |
| |
| // make sure we have enough rows |
| if (!ensureRows(m_cRow + rSpan)) |
| return; |
| |
| m_grid[m_cRow].rowRenderer = row; |
| |
| int col = m_cCol; |
| // tell the cell where it is |
| CellStruct currentCell; |
| currentCell.cell = cell; |
| currentCell.inColSpan = false; |
| while (cSpan) { |
| int currentSpan; |
| if (m_cCol >= nCols) { |
| table()->appendColumn(cSpan); |
| currentSpan = cSpan; |
| } else { |
| if (cSpan < columns[m_cCol].span) |
| table()->splitColumn(m_cCol, cSpan); |
| currentSpan = columns[m_cCol].span; |
| } |
| |
| for (int r = 0; r < rSpan; r++) { |
| CellStruct& c = cellAt(m_cRow + r, m_cCol); |
| if (currentCell.cell && !c.cell) |
| c.cell = currentCell.cell; |
| if (currentCell.inColSpan) |
| c.inColSpan = true; |
| } |
| m_cCol++; |
| cSpan -= currentSpan; |
| currentCell.cell = 0; |
| currentCell.inColSpan = true; |
| } |
| if (cell) { |
| cell->setRow(m_cRow); |
| cell->setCol(table()->effColToCol(col)); |
| } |
| } |
| |
| void RenderTableSection::setCellWidths() |
| { |
| Vector<int>& columnPos = table()->columnPositions(); |
| bool pushedLayoutState = false; |
| |
| for (int i = 0; i < m_gridRows; i++) { |
| Row& row = *m_grid[i].row; |
| int cols = row.size(); |
| for (int j = 0; j < cols; j++) { |
| CellStruct current = row[j]; |
| RenderTableCell* cell = current.cell; |
| |
| if (!cell) |
| continue; |
| int endCol = j; |
| int cspan = cell->colSpan(); |
| while (cspan && endCol < cols) { |
| cspan -= table()->columns()[endCol].span; |
| endCol++; |
| } |
| int w = columnPos[endCol] - columnPos[j] - table()->hBorderSpacing(); |
| int oldWidth = cell->width(); |
| if (w != oldWidth) { |
| cell->setNeedsLayout(true); |
| if (!table()->selfNeedsLayout() && cell->checkForRepaintDuringLayout()) { |
| if (!pushedLayoutState) { |
| // Technically, we should also push state for the row, but since |
| // rows don't push a coordinate transform, that's not necessary. |
| view()->pushLayoutState(this, IntSize(m_x, m_y)); |
| pushedLayoutState = true; |
| } |
| cell->repaint(); |
| } |
| cell->setWidth(w); |
| } |
| } |
| } |
| |
| if (pushedLayoutState) |
| view()->popLayoutState(); |
| } |
| |
| void RenderTableSection::calcRowHeight() |
| { |
| RenderTableCell* cell; |
| |
| int spacing = table()->vBorderSpacing(); |
| bool pushedLayoutState = false; |
| |
| m_rowPos.resize(m_gridRows + 1); |
| m_rowPos[0] = spacing; |
| |
| for (int r = 0; r < m_gridRows; r++) { |
| m_rowPos[r + 1] = 0; |
| m_grid[r].baseline = 0; |
| int baseline = 0; |
| int bdesc = 0; |
| int ch = m_grid[r].height.calcMinValue(0); |
| int pos = m_rowPos[r] + ch + (m_grid[r].rowRenderer ? spacing : 0); |
| |
| m_rowPos[r + 1] = max(m_rowPos[r + 1], pos); |
| |
| Row* row = m_grid[r].row; |
| int totalCols = row->size(); |
| |
| for (int c = 0; c < totalCols; c++) { |
| CellStruct current = cellAt(r, c); |
| cell = current.cell; |
| if (!cell || current.inColSpan) |
| continue; |
| if (r < m_gridRows - 1 && cellAt(r + 1, c).cell == cell) |
| continue; |
| |
| int indx = max(r - cell->rowSpan() + 1, 0); |
| |
| if (cell->overrideSize() != -1) { |
| if (!pushedLayoutState) { |
| // Technically, we should also push state for the row, but since |
| // rows don't push a coordinate transform, that's not necessary. |
| view()->pushLayoutState(this, IntSize(m_x, m_y)); |
| pushedLayoutState = true; |
| } |
| cell->setOverrideSize(-1); |
| cell->setChildNeedsLayout(true, false); |
| cell->layoutIfNeeded(); |
| } |
| |
| // Explicit heights use the border box in quirks mode. In strict mode do the right |
| // thing and actually add in the border and padding. |
| ch = cell->style()->height().calcValue(0) + |
| (cell->style()->htmlHacks() ? 0 : (cell->paddingTop() + cell->paddingBottom() + |
| cell->borderTop() + cell->borderBottom())); |
| ch = max(ch, cell->height()); |
| |
| pos = m_rowPos[indx] + ch + (m_grid[r].rowRenderer ? spacing : 0); |
| |
| m_rowPos[r + 1] = max(m_rowPos[r + 1], pos); |
| |
| // find out the baseline |
| EVerticalAlign va = cell->style()->verticalAlign(); |
| if (va == BASELINE || va == TEXT_BOTTOM || va == TEXT_TOP || va == SUPER || va == SUB) { |
| int b = cell->baselinePosition(); |
| if (b > cell->borderTop() + cell->paddingTop()) { |
| baseline = max(baseline, b); |
| bdesc = max(bdesc, m_rowPos[indx] + ch - b); |
| } |
| } |
| } |
| |
| //do we have baseline aligned elements? |
| if (baseline) { |
| // increase rowheight if baseline requires |
| m_rowPos[r + 1] = max(m_rowPos[r + 1], baseline + bdesc + (m_grid[r].rowRenderer ? spacing : 0)); |
| m_grid[r].baseline = baseline; |
| } |
| |
| m_rowPos[r + 1] = max(m_rowPos[r + 1], m_rowPos[r]); |
| } |
| |
| if (pushedLayoutState) |
| view()->popLayoutState(); |
| } |
| |
| int RenderTableSection::layoutRows(int toAdd) |
| { |
| int rHeight; |
| int rindx; |
| int totalRows = m_gridRows; |
| |
| // Set the width of our section now. The rows will also be this width. |
| m_width = table()->contentWidth(); |
| m_overflowLeft = 0; |
| m_overflowWidth = m_width; |
| m_overflowTop = 0; |
| m_overflowHeight = 0; |
| m_hasOverflowingCell = false; |
| |
| if (table()->collapseBorders()) |
| recalcOuterBorder(); |
| |
| if (toAdd && totalRows && (m_rowPos[totalRows] || !nextSibling())) { |
| int totalHeight = m_rowPos[totalRows] + toAdd; |
| |
| int dh = toAdd; |
| int totalPercent = 0; |
| int numAuto = 0; |
| for (int r = 0; r < totalRows; r++) { |
| if (m_grid[r].height.isAuto()) |
| numAuto++; |
| else if (m_grid[r].height.isPercent()) |
| totalPercent += m_grid[r].height.rawValue(); |
| } |
| if (totalPercent) { |
| // try to satisfy percent |
| int add = 0; |
| totalPercent = min(totalPercent, 100 * percentScaleFactor); |
| int rh = m_rowPos[1] - m_rowPos[0]; |
| for (int r = 0; r < totalRows; r++) { |
| if (totalPercent > 0 && m_grid[r].height.isPercent()) { |
| int toAdd = min(dh, (totalHeight * m_grid[r].height.rawValue() / (100 * percentScaleFactor)) - rh); |
| // If toAdd is negative, then we don't want to shrink the row (this bug |
| // affected Outlook Web Access). |
| toAdd = max(0, toAdd); |
| add += toAdd; |
| dh -= toAdd; |
| totalPercent -= m_grid[r].height.rawValue(); |
| } |
| if (r < totalRows - 1) |
| rh = m_rowPos[r + 2] - m_rowPos[r + 1]; |
| m_rowPos[r + 1] += add; |
| } |
| } |
| if (numAuto) { |
| // distribute over variable cols |
| int add = 0; |
| for (int r = 0; r < totalRows; r++) { |
| if (numAuto > 0 && m_grid[r].height.isAuto()) { |
| int toAdd = dh / numAuto; |
| add += toAdd; |
| dh -= toAdd; |
| numAuto--; |
| } |
| m_rowPos[r + 1] += add; |
| } |
| } |
| if (dh > 0 && m_rowPos[totalRows]) { |
| // if some left overs, distribute equally. |
| int tot = m_rowPos[totalRows]; |
| int add = 0; |
| int prev = m_rowPos[0]; |
| for (int r = 0; r < totalRows; r++) { |
| //weight with the original height |
| add += dh * (m_rowPos[r + 1] - prev) / tot; |
| prev = m_rowPos[r + 1]; |
| m_rowPos[r + 1] += add; |
| } |
| } |
| } |
| |
| int hspacing = table()->hBorderSpacing(); |
| int vspacing = table()->vBorderSpacing(); |
| int nEffCols = table()->numEffCols(); |
| |
| view()->pushLayoutState(this, IntSize(m_x, m_y)); |
| |
| for (int r = 0; r < totalRows; r++) { |
| // Set the row's x/y position and width/height. |
| if (RenderObject* rowRenderer = m_grid[r].rowRenderer) { |
| rowRenderer->setPos(0, m_rowPos[r]); |
| rowRenderer->setWidth(m_width); |
| rowRenderer->setHeight(m_rowPos[r + 1] - m_rowPos[r] - vspacing); |
| } |
| |
| for (int c = 0; c < nEffCols; c++) { |
| RenderTableCell* cell = cellAt(r, c).cell; |
| |
| if (!cell) |
| continue; |
| if (r < totalRows - 1 && cell == cellAt(r + 1, c).cell) |
| continue; |
| |
| rindx = max(0, r - cell->rowSpan() + 1); |
| |
| rHeight = m_rowPos[r + 1] - m_rowPos[rindx] - vspacing; |
| |
| // Force percent height children to lay themselves out again. |
| // This will cause these children to grow to fill the cell. |
| // FIXME: There is still more work to do here to fully match WinIE (should |
| // it become necessary to do so). In quirks mode, WinIE behaves like we |
| // do, but it will clip the cells that spill out of the table section. In |
| // strict mode, Mozilla and WinIE both regrow the table to accommodate the |
| // new height of the cell (thus letting the percentages cause growth one |
| // time only). We may also not be handling row-spanning cells correctly. |
| // |
| // Note also the oddity where replaced elements always flex, and yet blocks/tables do |
| // not necessarily flex. WinIE is crazy and inconsistent, and we can't hope to |
| // match the behavior perfectly, but we'll continue to refine it as we discover new |
| // bugs. :) |
| bool cellChildrenFlex = false; |
| bool flexAllChildren = cell->style()->height().isFixed() || |
| (!table()->style()->height().isAuto() && rHeight != cell->height()); |
| |
| for (RenderObject* o = cell->firstChild(); o; o = o->nextSibling()) { |
| if (!o->isText() && o->style()->height().isPercent() && (o->isReplaced() || o->scrollsOverflow() || flexAllChildren)) { |
| // Tables with no sections do not flex. |
| if (!o->isTable() || static_cast<RenderTable*>(o)->hasSections()) { |
| o->setNeedsLayout(true, false); |
| cell->setChildNeedsLayout(true, false); |
| cellChildrenFlex = true; |
| } |
| } |
| } |
| if (cellChildrenFlex) { |
| // Alignment within a cell is based off the calculated |
| // height, which becomes irrelevant once the cell has |
| // been resized based off its percentage. -dwh |
| cell->setOverrideSize(max(0, |
| rHeight - cell->borderTop() - cell->paddingTop() - |
| cell->borderBottom() - cell->paddingBottom())); |
| cell->layoutIfNeeded(); |
| |
| // If the baseline moved, we may have to update the data for our row. Find out the new baseline. |
| EVerticalAlign va = cell->style()->verticalAlign(); |
| if (va == BASELINE || va == TEXT_BOTTOM || va == TEXT_TOP || va == SUPER || va == SUB) { |
| int b = cell->baselinePosition(); |
| if (b > cell->borderTop() + cell->paddingTop()) |
| m_grid[r].baseline = max(m_grid[r].baseline, b); |
| } |
| } |
| |
| int te = 0; |
| switch (cell->style()->verticalAlign()) { |
| case SUB: |
| case SUPER: |
| case TEXT_TOP: |
| case TEXT_BOTTOM: |
| case BASELINE: |
| te = getBaseline(r) - cell->baselinePosition(); |
| break; |
| case TOP: |
| te = 0; |
| break; |
| case MIDDLE: |
| te = (rHeight - cell->height()) / 2; |
| break; |
| case BOTTOM: |
| te = rHeight - cell->height(); |
| break; |
| default: |
| break; |
| } |
| |
| int oldTe = cell->borderTopExtra(); |
| int oldBe = cell->borderBottomExtra(); |
| |
| int be = rHeight - cell->height() - te; |
| cell->setCellTopExtra(te); |
| cell->setCellBottomExtra(be); |
| if ((te != oldTe || be > oldBe) && !table()->selfNeedsLayout() && cell->checkForRepaintDuringLayout()) |
| cell->repaint(); |
| |
| IntRect oldCellRect(cell->xPos(), cell->yPos() - cell->borderTopExtra() , cell->width(), cell->height()); |
| |
| if (style()->direction() == RTL) { |
| cell->setPos(table()->columnPositions()[nEffCols] - table()->columnPositions()[table()->colToEffCol(cell->col() + cell->colSpan())] + hspacing, m_rowPos[rindx]); |
| } else |
| cell->setPos(table()->columnPositions()[c] + hspacing, m_rowPos[rindx]); |
| |
| m_overflowLeft = min(m_overflowLeft, cell->xPos() + cell->overflowLeft(false)); |
| m_overflowWidth = max(m_overflowWidth, cell->xPos() + cell->overflowWidth(false)); |
| m_overflowTop = min(m_overflowTop, cell->yPos() + cell->overflowTop(false)); |
| m_overflowHeight = max(m_overflowHeight, cell->yPos() + cell->overflowHeight(false)); |
| m_hasOverflowingCell |= cell->overflowLeft(false) || cell->overflowWidth(false) > cell->width() || cell->overflowTop(false) || cell->overflowHeight(false) > cell->height(); |
| |
| // If the cell moved, we have to repaint it as well as any floating/positioned |
| // descendants. An exception is if we need a layout. In this case, we know we're going to |
| // repaint ourselves (and the cell) anyway. |
| if (!table()->selfNeedsLayout() && cell->checkForRepaintDuringLayout()) |
| cell->repaintDuringLayoutIfMoved(oldCellRect); |
| } |
| } |
| |
| view()->popLayoutState(); |
| |
| m_height = m_rowPos[totalRows]; |
| m_overflowHeight = max(m_overflowHeight, m_height); |
| return m_height; |
| } |
| |
| int RenderTableSection::lowestPosition(bool includeOverflowInterior, bool includeSelf) const |
| { |
| int bottom = RenderContainer::lowestPosition(includeOverflowInterior, includeSelf); |
| if (!includeOverflowInterior && hasOverflowClip()) |
| return bottom; |
| |
| for (RenderObject* row = firstChild(); row; row = row->nextSibling()) { |
| for (RenderObject* cell = row->firstChild(); cell; cell = cell->nextSibling()) { |
| if (cell->isTableCell()) |
| bottom = max(bottom, cell->yPos() + cell->lowestPosition(false)); |
| } |
| } |
| |
| return bottom; |
| } |
| |
| int RenderTableSection::rightmostPosition(bool includeOverflowInterior, bool includeSelf) const |
| { |
| int right = RenderContainer::rightmostPosition(includeOverflowInterior, includeSelf); |
| if (!includeOverflowInterior && hasOverflowClip()) |
| return right; |
| |
| for (RenderObject* row = firstChild(); row; row = row->nextSibling()) { |
| for (RenderObject* cell = row->firstChild(); cell; cell = cell->nextSibling()) { |
| if (cell->isTableCell()) |
| right = max(right, cell->xPos() + cell->rightmostPosition(false)); |
| } |
| } |
| |
| return right; |
| } |
| |
| int RenderTableSection::leftmostPosition(bool includeOverflowInterior, bool includeSelf) const |
| { |
| int left = RenderContainer::leftmostPosition(includeOverflowInterior, includeSelf); |
| if (!includeOverflowInterior && hasOverflowClip()) |
| return left; |
| |
| for (RenderObject* row = firstChild(); row; row = row->nextSibling()) { |
| for (RenderObject* cell = row->firstChild(); cell; cell = cell->nextSibling()) { |
| if (cell->isTableCell()) |
| left = min(left, cell->xPos() + cell->leftmostPosition(false)); |
| } |
| } |
| |
| return left; |
| } |
| |
| int RenderTableSection::calcOuterBorderTop() const |
| { |
| int totalCols = table()->numEffCols(); |
| if (!m_gridRows || !totalCols) |
| return 0; |
| |
| unsigned borderWidth = 0; |
| |
| const BorderValue& sb = style()->borderTop(); |
| if (sb.style() == BHIDDEN) |
| return -1; |
| if (sb.style() > BHIDDEN) |
| borderWidth = sb.width; |
| |
| const BorderValue& rb = firstChild()->style()->borderTop(); |
| if (rb.style() == BHIDDEN) |
| return -1; |
| if (rb.style() > BHIDDEN && rb.width > borderWidth) |
| borderWidth = rb.width; |
| |
| bool allHidden = true; |
| for (int c = 0; c < totalCols; c++) { |
| const CellStruct& current = cellAt(0, c); |
| if (current.inColSpan || !current.cell) |
| continue; |
| const BorderValue& cb = current.cell->style()->borderTop(); |
| // FIXME: Don't repeat for the same col group |
| RenderTableCol* colGroup = table()->colElement(c); |
| if (colGroup) { |
| const BorderValue& gb = colGroup->style()->borderTop(); |
| if (gb.style() == BHIDDEN || cb.style() == BHIDDEN) |
| continue; |
| else |
| allHidden = false; |
| if (gb.style() > BHIDDEN && gb.width > borderWidth) |
| borderWidth = gb.width; |
| if (cb.style() > BHIDDEN && cb.width > borderWidth) |
| borderWidth = cb.width; |
| } else { |
| if (cb.style() == BHIDDEN) |
| continue; |
| else |
| allHidden = false; |
| if (cb.style() > BHIDDEN && cb.width > borderWidth) |
| borderWidth = cb.width; |
| } |
| } |
| if (allHidden) |
| return -1; |
| |
| return borderWidth / 2; |
| } |
| |
| int RenderTableSection::calcOuterBorderBottom() const |
| { |
| int totalCols = table()->numEffCols(); |
| if (!m_gridRows || !totalCols) |
| return 0; |
| |
| unsigned borderWidth = 0; |
| |
| const BorderValue& sb = style()->borderBottom(); |
| if (sb.style() == BHIDDEN) |
| return -1; |
| if (sb.style() > BHIDDEN) |
| borderWidth = sb.width; |
| |
| const BorderValue& rb = lastChild()->style()->borderBottom(); |
| if (rb.style() == BHIDDEN) |
| return -1; |
| if (rb.style() > BHIDDEN && rb.width > borderWidth) |
| borderWidth = rb.width; |
| |
| bool allHidden = true; |
| for (int c = 0; c < totalCols; c++) { |
| const CellStruct& current = cellAt(m_gridRows - 1, c); |
| if (current.inColSpan || !current.cell) |
| continue; |
| const BorderValue& cb = current.cell->style()->borderBottom(); |
| // FIXME: Don't repeat for the same col group |
| RenderTableCol* colGroup = table()->colElement(c); |
| if (colGroup) { |
| const BorderValue& gb = colGroup->style()->borderBottom(); |
| if (gb.style() == BHIDDEN || cb.style() == BHIDDEN) |
| continue; |
| else |
| allHidden = false; |
| if (gb.style() > BHIDDEN && gb.width > borderWidth) |
| borderWidth = gb.width; |
| if (cb.style() > BHIDDEN && cb.width > borderWidth) |
| borderWidth = cb.width; |
| } else { |
| if (cb.style() == BHIDDEN) |
| continue; |
| else |
| allHidden = false; |
| if (cb.style() > BHIDDEN && cb.width > borderWidth) |
| borderWidth = cb.width; |
| } |
| } |
| if (allHidden) |
| return -1; |
| |
| return (borderWidth + 1) / 2; |
| } |
| |
| int RenderTableSection::calcOuterBorderLeft(bool rtl) const |
| { |
| int totalCols = table()->numEffCols(); |
| if (!m_gridRows || !totalCols) |
| return 0; |
| |
| unsigned borderWidth = 0; |
| |
| const BorderValue& sb = style()->borderLeft(); |
| if (sb.style() == BHIDDEN) |
| return -1; |
| if (sb.style() > BHIDDEN) |
| borderWidth = sb.width; |
| |
| int leftmostColumn = rtl ? totalCols - 1 : 0; |
| RenderTableCol* colGroup = table()->colElement(leftmostColumn); |
| if (colGroup) { |
| const BorderValue& gb = colGroup->style()->borderLeft(); |
| if (gb.style() == BHIDDEN) |
| return -1; |
| if (gb.style() > BHIDDEN && gb.width > borderWidth) |
| borderWidth = gb.width; |
| } |
| |
| bool allHidden = true; |
| for (int r = 0; r < m_gridRows; r++) { |
| const CellStruct& current = cellAt(r, leftmostColumn); |
| if (!current.cell) |
| continue; |
| // FIXME: Don't repeat for the same cell |
| const BorderValue& cb = current.cell->style()->borderLeft(); |
| const BorderValue& rb = current.cell->parent()->style()->borderLeft(); |
| if (cb.style() == BHIDDEN || rb.style() == BHIDDEN) |
| continue; |
| else |
| allHidden = false; |
| if (cb.style() > BHIDDEN && cb.width > borderWidth) |
| borderWidth = cb.width; |
| if (rb.style() > BHIDDEN && rb.width > borderWidth) |
| borderWidth = rb.width; |
| } |
| if (allHidden) |
| return -1; |
| |
| return borderWidth / 2; |
| } |
| |
| int RenderTableSection::calcOuterBorderRight(bool rtl) const |
| { |
| int totalCols = table()->numEffCols(); |
| if (!m_gridRows || !totalCols) |
| return 0; |
| |
| unsigned borderWidth = 0; |
| |
| const BorderValue& sb = style()->borderRight(); |
| if (sb.style() == BHIDDEN) |
| return -1; |
| if (sb.style() > BHIDDEN) |
| borderWidth = sb.width; |
| |
| int rightmostColumn = rtl ? 0 : totalCols - 1; |
| RenderTableCol* colGroup = table()->colElement(rightmostColumn); |
| if (colGroup) { |
| const BorderValue& gb = colGroup->style()->borderRight(); |
| if (gb.style() == BHIDDEN) |
| return -1; |
| if (gb.style() > BHIDDEN && gb.width > borderWidth) |
| borderWidth = gb.width; |
| } |
| |
| bool allHidden = true; |
| for (int r = 0; r < m_gridRows; r++) { |
| const CellStruct& current = cellAt(r, rightmostColumn); |
| if (!current.cell) |
| continue; |
| // FIXME: Don't repeat for the same cell |
| const BorderValue& cb = current.cell->style()->borderRight(); |
| const BorderValue& rb = current.cell->parent()->style()->borderRight(); |
| if (cb.style() == BHIDDEN || rb.style() == BHIDDEN) |
| continue; |
| else |
| allHidden = false; |
| if (cb.style() > BHIDDEN && cb.width > borderWidth) |
| borderWidth = cb.width; |
| if (rb.style() > BHIDDEN && rb.width > borderWidth) |
| borderWidth = rb.width; |
| } |
| if (allHidden) |
| return -1; |
| |
| return (borderWidth + 1) / 2; |
| } |
| |
| void RenderTableSection::recalcOuterBorder() |
| { |
| bool rtl = table()->style()->direction() == RTL; |
| m_outerBorderTop = calcOuterBorderTop(); |
| m_outerBorderBottom = calcOuterBorderBottom(); |
| m_outerBorderLeft = calcOuterBorderLeft(rtl); |
| m_outerBorderRight = calcOuterBorderRight(rtl); |
| } |
| |
| |
| void RenderTableSection::paint(PaintInfo& paintInfo, int tx, int ty) |
| { |
| // put this back in when all layout tests can handle it |
| // ASSERT(!needsLayout()); |
| // avoid crashing on bugs that cause us to paint with dirty layout |
| if (needsLayout()) |
| return; |
| |
| unsigned totalRows = m_gridRows; |
| unsigned totalCols = table()->columns().size(); |
| |
| if (!totalRows || !totalCols) |
| return; |
| |
| tx += m_x; |
| ty += m_y; |
| |
| // Check which rows and cols are visible and only paint these. |
| // FIXME: Could use a binary search here. |
| PaintPhase paintPhase = paintInfo.phase; |
| int x = paintInfo.rect.x(); |
| int y = paintInfo.rect.y(); |
| int w = paintInfo.rect.width(); |
| int h = paintInfo.rect.height(); |
| |
| int os = 2 * maximalOutlineSize(paintPhase); |
| unsigned startrow = 0; |
| unsigned endrow = totalRows; |
| |
| // If some cell overflows, just paint all of them. |
| if (!m_hasOverflowingCell) { |
| for (; startrow < totalRows; startrow++) { |
| if (ty + m_rowPos[startrow + 1] >= y - os) |
| break; |
| } |
| if (startrow == totalRows && ty + m_rowPos[totalRows] + table()->outerBorderBottom() >= y - os) |
| startrow--; |
| |
| for (; endrow > 0; endrow--) { |
| if (ty + m_rowPos[endrow - 1] <= y + h + os) |
| break; |
| } |
| if (!endrow && ty + m_rowPos[0] - table()->outerBorderTop() <= y + h + os) |
| endrow++; |
| } |
| |
| unsigned startcol = 0; |
| unsigned endcol = totalCols; |
| // FIXME: Implement RTL. |
| if (!m_hasOverflowingCell && style()->direction() == LTR) { |
| for (; startcol < totalCols; startcol++) { |
| if (tx + table()->columnPositions()[startcol + 1] >= x - os) |
| break; |
| } |
| if (startcol == totalCols && tx + table()->columnPositions()[totalCols] + table()->outerBorderRight() >= x - os) |
| startcol--; |
| |
| for (; endcol > 0; endcol--) { |
| if (tx + table()->columnPositions()[endcol - 1] <= x + w + os) |
| break; |
| } |
| if (!endcol && tx + table()->columnPositions()[0] - table()->outerBorderLeft() <= y + w + os) |
| endcol++; |
| } |
| |
| if (startcol < endcol) { |
| // draw the cells |
| for (unsigned r = startrow; r < endrow; r++) { |
| unsigned c = startcol; |
| // since a cell can be -1 (indicating a colspan) we might have to search backwards to include it |
| while (c && cellAt(r, c).inColSpan) |
| c--; |
| for (; c < endcol; c++) { |
| CellStruct current = cellAt(r, c); |
| RenderTableCell* cell = current.cell; |
| |
| // Cells must always paint in the order in which they appear taking into account |
| // their upper left originating row/column. For cells with rowspans, avoid repainting |
| // if we've already seen the cell. |
| if (!cell || (r > startrow && (cellAt(r - 1, c).cell == cell))) |
| continue; |
| |
| RenderTableRow* row = static_cast<RenderTableRow*>(cell->parent()); |
| |
| if (paintPhase == PaintPhaseBlockBackground || paintPhase == PaintPhaseChildBlockBackground) { |
| // We need to handle painting a stack of backgrounds. This stack (from bottom to top) consists of |
| // the column group, column, row group, row, and then the cell. |
| RenderObject* col = table()->colElement(c); |
| RenderObject* colGroup = 0; |
| if (col && col->parent()->style()->display() == TABLE_COLUMN_GROUP) |
| colGroup = col->parent(); |
| |
| // Column groups and columns first. |
| // FIXME: Columns and column groups do not currently support opacity, and they are being painted "too late" in |
| // the stack, since we have already opened a transparency layer (potentially) for the table row group. |
| // Note that we deliberately ignore whether or not the cell has a layer, since these backgrounds paint "behind" the |
| // cell. |
| cell->paintBackgroundsBehindCell(paintInfo, tx, ty, colGroup); |
| cell->paintBackgroundsBehindCell(paintInfo, tx, ty, col); |
| |
| // Paint the row group next. |
| cell->paintBackgroundsBehindCell(paintInfo, tx, ty, this); |
| |
| // Paint the row next, but only if it doesn't have a layer. If a row has a layer, it will be responsible for |
| // painting the row background for the cell. |
| if (!row->hasLayer()) |
| cell->paintBackgroundsBehindCell(paintInfo, tx, ty, row); |
| } |
| |
| if ((!cell->hasLayer() && !row->hasLayer()) || paintInfo.phase == PaintPhaseCollapsedTableBorders) |
| cell->paint(paintInfo, tx, ty); |
| } |
| } |
| } |
| } |
| |
| void RenderTableSection::imageChanged(CachedImage* image) |
| { |
| if (!image || !image->canRender() || !parent()) |
| return; |
| |
| // FIXME: Examine cells and repaint only the rect the image paints in. |
| repaint(); |
| } |
| |
| void RenderTableSection::recalcCells() |
| { |
| m_cCol = 0; |
| m_cRow = -1; |
| clearGrid(); |
| m_gridRows = 0; |
| |
| for (RenderObject* row = firstChild(); row; row = row->nextSibling()) { |
| if (row->isTableRow()) { |
| m_cRow++; |
| m_cCol = 0; |
| if (!ensureRows(m_cRow + 1)) |
| break; |
| m_grid[m_cRow].rowRenderer = row; |
| |
| for (RenderObject* cell = row->firstChild(); cell; cell = cell->nextSibling()) { |
| if (cell->isTableCell()) |
| addCell(static_cast<RenderTableCell*>(cell), row); |
| } |
| } |
| } |
| m_needsCellRecalc = false; |
| setNeedsLayout(true); |
| } |
| |
| void RenderTableSection::clearGrid() |
| { |
| int rows = m_gridRows; |
| while (rows--) |
| delete m_grid[rows].row; |
| } |
| |
| int RenderTableSection::numColumns() const |
| { |
| int result = 0; |
| |
| for (int r = 0; r < m_gridRows; ++r) { |
| for (int c = result; c < table()->numEffCols(); ++c) { |
| const CellStruct& cell = cellAt(r, c); |
| if (cell.cell || cell.inColSpan) |
| result = c; |
| } |
| } |
| |
| return result + 1; |
| } |
| |
| void RenderTableSection::appendColumn(int pos) |
| { |
| for (int row = 0; row < m_gridRows; ++row) { |
| m_grid[row].row->resize(pos + 1); |
| CellStruct& c = cellAt(row, pos); |
| c.cell = 0; |
| c.inColSpan = false; |
| } |
| } |
| |
| void RenderTableSection::splitColumn(int pos, int newSize) |
| { |
| if (m_cCol > pos) |
| m_cCol++; |
| for (int row = 0; row < m_gridRows; ++row) { |
| m_grid[row].row->resize(newSize); |
| Row& r = *m_grid[row].row; |
| memmove(r.data() + pos + 1, r.data() + pos, (newSize - 1 - pos) * sizeof(CellStruct)); |
| r[pos + 1].cell = 0; |
| r[pos + 1].inColSpan = r[pos].inColSpan || r[pos].cell; |
| } |
| } |
| |
| RenderObject* RenderTableSection::removeChildNode(RenderObject* child, bool fullRemove) |
| { |
| setNeedsCellRecalc(); |
| return RenderContainer::removeChildNode(child, fullRemove); |
| } |
| |
| // Hit Testing |
| bool RenderTableSection::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty, HitTestAction action) |
| { |
| // Table sections cannot ever be hit tested. Effectively they do not exist. |
| // Just forward to our children always. |
| tx += m_x; |
| ty += m_y; |
| |
| for (RenderObject* child = lastChild(); child; child = child->previousSibling()) { |
| // FIXME: We have to skip over inline flows, since they can show up inside table rows |
| // at the moment (a demoted inline <form> for example). If we ever implement a |
| // table-specific hit-test method (which we should do for performance reasons anyway), |
| // then we can remove this check. |
| if (!child->hasLayer() && !child->isInlineFlow() && child->nodeAtPoint(request, result, x, y, tx, ty, action)) { |
| updateHitTestResult(result, IntPoint(x - tx, y - ty)); |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| #ifndef NDEBUG |
| void RenderTableSection::dump(TextStream* stream, DeprecatedString ind) const |
| { |
| *stream << endl << ind << "grid=(" << m_gridRows << "," << table()->numEffCols() << ")" << endl << ind; |
| for (int r = 0; r < m_gridRows; r++) { |
| for (int c = 0; c < table()->numEffCols(); c++) { |
| if (cellAt(r, c).cell && !cellAt(r, c).inColSpan) |
| *stream << "(" << cellAt(r, c).cell->row() << "," << cellAt(r, c).cell->col() << "," |
| << cellAt(r, c).cell->rowSpan() << "," << cellAt(r, c).cell->colSpan() << ") "; |
| else |
| *stream << cellAt(r, c).cell << "null cell "; |
| } |
| *stream << endl << ind; |
| } |
| RenderContainer::dump(stream,ind); |
| } |
| #endif |
| |
| } // namespace WebCore |
