| /** |
| * 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. |
| * |
| * 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., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| #include "config.h" |
| #include "RenderTableCell.h" |
| |
| #include "GraphicsContext.h" |
| #include "RenderTableCol.h" |
| #include "HTMLNames.h" |
| #include "HTMLTableCellElement.h" |
| #include "TextStream.h" |
| |
| using namespace std; |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| RenderTableCell::RenderTableCell(Node* _node) |
| : RenderBlock(_node) |
| { |
| _col = -1; |
| _row = -1; |
| cSpan = rSpan = 1; |
| updateFromElement(); |
| setShouldPaintBackgroundOrBorder(true); |
| _topExtra = 0; |
| _bottomExtra = 0; |
| m_percentageHeight = 0; |
| m_widthChanged = false; |
| } |
| |
| void RenderTableCell::destroy() |
| { |
| if (parent() && section()) |
| section()->setNeedCellRecalc(); |
| |
| RenderBlock::destroy(); |
| } |
| |
| void RenderTableCell::updateFromElement() |
| { |
| int oldRSpan = rSpan; |
| int oldCSpan = cSpan; |
| Node* node = element(); |
| if (node && (node->hasTagName(tdTag) || node->hasTagName(thTag))) { |
| HTMLTableCellElement* tc = static_cast<HTMLTableCellElement*>(node); |
| cSpan = tc->colSpan(); |
| rSpan = tc->rowSpan(); |
| } |
| if ((oldRSpan != rSpan || oldCSpan != cSpan) && style() && parent()) |
| setNeedsLayoutAndMinMaxRecalc(); |
| } |
| |
| Length RenderTableCell::styleOrColWidth() |
| { |
| Length w = style()->width(); |
| if (colSpan() > 1 || !w.isAuto()) |
| return w; |
| RenderTableCol* col = table()->colElement(_col); |
| if (col) { |
| w = col->style()->width(); |
| |
| // Column widths specified on <col> apply to the border box of the cell. |
| // Percentages don't need to be handled since they're always treated this way (even when specified on the cells). |
| // See Bugzilla bug 8126 for details. |
| if (w.isFixed() && w.value() > 0) |
| w = Length(max(0, w.value() - borderLeft() - borderRight() - paddingLeft() - paddingRight()), Fixed); |
| } |
| return w; |
| } |
| |
| void RenderTableCell::calcMinMaxWidth() |
| { |
| // recalcMinMaxWidths works depth first. However, the child cells rely on the grids up in the |
| // sections to do their calcMinMaxWidths work. Normally the sections are set up early, as table |
| // cells are added, but relayout can cause the cells to be freed, leaving stale ptrs in the sections' |
| // grids. We must refresh those grids before the child cells try to use them. |
| table()->recalcSectionsIfNeeded(); |
| |
| RenderBlock::calcMinMaxWidth(); |
| if (element() && style()->autoWrap()) { |
| // See if nowrap was set. |
| Length w = styleOrColWidth(); |
| String nowrap = static_cast<Element*>(element())->getAttribute(nowrapAttr); |
| if (!nowrap.isNull() && w.isFixed()) |
| // Nowrap is set, but we didn't actually use it because of the |
| // fixed width set on the cell. Even so, it is a WinIE/Moz trait |
| // to make the minwidth of the cell into the fixed width. They do this |
| // even in strict mode, so do not make this a quirk. Affected the top |
| // of hiptop.com. |
| if (m_minWidth < w.value()) |
| m_minWidth = w.value(); |
| } |
| } |
| |
| void RenderTableCell::calcWidth() |
| { |
| } |
| |
| void RenderTableCell::setWidth(int width) |
| { |
| if (width != m_width) { |
| m_width = width; |
| m_widthChanged = true; |
| } |
| } |
| |
| void RenderTableCell::layout() |
| { |
| layoutBlock(m_widthChanged); |
| m_widthChanged = false; |
| } |
| |
| void RenderTableCell::computeAbsoluteRepaintRect(IntRect& r, bool f) |
| { |
| r.setY(r.y() + _topExtra); |
| r.move(-parent()->xPos(), -parent()->yPos()); // Rows are in the same coordinate space, so don't add their offset in. |
| RenderBlock::computeAbsoluteRepaintRect(r, f); |
| } |
| |
| bool RenderTableCell::absolutePosition(int &xPos, int &yPos, bool f) |
| { |
| bool result = RenderBlock::absolutePosition(xPos, yPos, f); |
| xPos -= parent()->xPos(); // Rows are in the same coordinate space, so don't add their offset in. |
| yPos -= parent()->yPos(); |
| return result; |
| } |
| |
| short RenderTableCell::baselinePosition(bool) const |
| { |
| RenderObject* o = firstChild(); |
| int offset = paddingTop() + borderTop(); |
| |
| if (!o) |
| return offset + contentHeight(); |
| while (o->firstChild() && !o->isReplaced()) { |
| if (!o->isInline()) |
| offset += o->paddingTop() + o->borderTop(); |
| o = o->firstChild(); |
| } |
| |
| if (!o->isInline()) |
| return paddingTop() + borderTop() + contentHeight(); |
| |
| offset += o->baselinePosition(true); |
| return offset; |
| } |
| |
| void RenderTableCell::setStyle(RenderStyle *newStyle) |
| { |
| if (parent() && section() && style() && style()->height() != newStyle->height()) |
| section()->setNeedCellRecalc(); |
| |
| newStyle->setDisplay(TABLE_CELL); |
| |
| if (newStyle->whiteSpace() == KHTML_NOWRAP) { |
| // Figure out if we are really nowrapping or if we should just |
| // use normal instead. If the width of the cell is fixed, then |
| // we don't actually use NOWRAP. |
| if (newStyle->width().isFixed()) |
| newStyle->setWhiteSpace(NORMAL); |
| else |
| newStyle->setWhiteSpace(NOWRAP); |
| } |
| |
| RenderBlock::setStyle(newStyle); |
| setShouldPaintBackgroundOrBorder(true); |
| } |
| |
| bool RenderTableCell::requiresLayer() |
| { |
| return isPositioned() || isTransparent() || hasOverflowClip(); |
| } |
| |
| // The following rules apply for resolving conflicts and figuring out which border |
| // to use. |
| // (1) Borders with the 'border-style' of 'hidden' take precedence over all other conflicting |
| // borders. Any border with this value suppresses all borders at this location. |
| // (2) Borders with a style of 'none' have the lowest priority. Only if the border properties of all |
| // the elements meeting at this edge are 'none' will the border be omitted (but note that 'none' is |
| // the default value for the border style.) |
| // (3) If none of the styles are 'hidden' and at least one of them is not 'none', then narrow borders |
| // are discarded in favor of wider ones. If several have the same 'border-width' then styles are preferred |
| // in this order: 'double', 'solid', 'dashed', 'dotted', 'ridge', 'outset', 'groove', and the lowest: 'inset'. |
| // (4) If border styles differ only in color, then a style set on a cell wins over one on a row, |
| // which wins over a row group, column, column group and, lastly, table. It is undefined which color |
| // is used when two elements of the same type disagree. |
| static CollapsedBorderValue compareBorders(const CollapsedBorderValue& border1, |
| const CollapsedBorderValue& border2) |
| { |
| // Sanity check the values passed in. If either is null, return the other. |
| if (!border2.exists()) return border1; |
| if (!border1.exists()) return border2; |
| |
| // Rule #1 above. |
| if (border1.style() == BHIDDEN || border2.style() == BHIDDEN) |
| return CollapsedBorderValue(); // No border should exist at this location. |
| |
| // Rule #2 above. A style of 'none' has lowest priority and always loses to any other border. |
| if (border2.style() == BNONE) return border1; |
| if (border1.style() == BNONE) return border2; |
| |
| // The first part of rule #3 above. Wider borders win. |
| if (border1.width() != border2.width()) |
| return border1.width() > border2.width() ? border1 : border2; |
| |
| // The borders have equal width. Sort by border style. |
| if (border1.style() != border2.style()) |
| return border1.style() > border2.style() ? border1 : border2; |
| |
| // The border have the same width and style. Rely on precedence (cell over row over row group, etc.) |
| return border1.precedence >= border2.precedence ? border1 : border2; |
| } |
| |
| CollapsedBorderValue RenderTableCell::collapsedLeftBorder(bool rtl) const |
| { |
| RenderTable* tableElt = table(); |
| bool leftmostColumn; |
| if (!rtl) |
| leftmostColumn = col() == 0; |
| else { |
| int effCol = tableElt->colToEffCol(col() + colSpan() - 1); |
| leftmostColumn = effCol == tableElt->numEffCols() - 1; |
| } |
| |
| // For border left, we need to check, in order of precedence: |
| // (1) Our left border. |
| CollapsedBorderValue result(&style()->borderLeft(), BCELL); |
| |
| // (2) The right border of the cell to the left. |
| RenderTableCell* prevCell = rtl ? tableElt->cellAfter(this) : tableElt->cellBefore(this); |
| if (prevCell) { |
| result = compareBorders(result, CollapsedBorderValue(&prevCell->style()->borderRight(), BCELL)); |
| if (!result.exists()) |
| return result; |
| } else if (leftmostColumn) { |
| // (3) Our row's left border. |
| result = compareBorders(result, CollapsedBorderValue(&parent()->style()->borderLeft(), BROW)); |
| if (!result.exists()) |
| return result; |
| |
| // (4) Our row group's left border. |
| result = compareBorders(result, CollapsedBorderValue(§ion()->style()->borderLeft(), BROWGROUP)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| // (5) Our column's left border. |
| RenderTableCol* colElt = tableElt->colElement(col() + (rtl ? colSpan() - 1 : 0)); |
| if (colElt) { |
| result = compareBorders(result, CollapsedBorderValue(&colElt->style()->borderLeft(), BCOL)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| // (6) The right border of the column to the left. |
| if (!leftmostColumn) { |
| colElt = tableElt->colElement(col() + (rtl ? colSpan() : -1)); |
| if (colElt) { |
| result = compareBorders(result, CollapsedBorderValue(&colElt->style()->borderRight(), BCOL)); |
| if (!result.exists()) |
| return result; |
| } |
| } else { |
| // (7) The table's left border. |
| result = compareBorders(result, CollapsedBorderValue(&tableElt->style()->borderLeft(), BTABLE)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| return result; |
| } |
| |
| CollapsedBorderValue RenderTableCell::collapsedRightBorder(bool rtl) const |
| { |
| RenderTable* tableElt = table(); |
| bool rightmostColumn; |
| if (rtl) |
| rightmostColumn = col() == 0; |
| else { |
| int effCol = tableElt->colToEffCol(col() + colSpan() - 1); |
| rightmostColumn = effCol == tableElt->numEffCols() - 1; |
| } |
| |
| // For border right, we need to check, in order of precedence: |
| // (1) Our right border. |
| CollapsedBorderValue result = CollapsedBorderValue(&style()->borderRight(), BCELL); |
| |
| // (2) The left border of the cell to the right. |
| if (!rightmostColumn) { |
| RenderTableCell* nextCell = rtl ? tableElt->cellBefore(this) : tableElt->cellAfter(this); |
| if (nextCell && nextCell->style()) { |
| result = compareBorders(result, CollapsedBorderValue(&nextCell->style()->borderLeft(), BCELL)); |
| if (!result.exists()) |
| return result; |
| } |
| } else { |
| // (3) Our row's right border. |
| result = compareBorders(result, CollapsedBorderValue(&parent()->style()->borderRight(), BROW)); |
| if (!result.exists()) |
| return result; |
| |
| // (4) Our row group's right border. |
| result = compareBorders(result, CollapsedBorderValue(§ion()->style()->borderRight(), BROWGROUP)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| // (5) Our column's right border. |
| RenderTableCol* colElt = tableElt->colElement(col() + (rtl ? 0 : colSpan() - 1)); |
| if (colElt) { |
| result = compareBorders(result, CollapsedBorderValue(&colElt->style()->borderRight(), BCOL)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| // (6) The left border of the column to the right. |
| if (!rightmostColumn) { |
| colElt = tableElt->colElement(col() + (rtl ? -1 : colSpan())); |
| if (colElt) { |
| result = compareBorders(result, CollapsedBorderValue(&colElt->style()->borderLeft(), BCOL)); |
| if (!result.exists()) |
| return result; |
| } |
| } else { |
| // (7) The table's right border. |
| result = compareBorders(result, CollapsedBorderValue(&tableElt->style()->borderRight(), BTABLE)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| return result; |
| } |
| |
| CollapsedBorderValue RenderTableCell::collapsedTopBorder() const |
| { |
| // For border top, we need to check, in order of precedence: |
| // (1) Our top border. |
| CollapsedBorderValue result = CollapsedBorderValue(&style()->borderTop(), BCELL); |
| |
| RenderTableCell* prevCell = table()->cellAbove(this); |
| if (prevCell) { |
| // (2) A previous cell's bottom border. |
| result = compareBorders(result, CollapsedBorderValue(&prevCell->style()->borderBottom(), BCELL)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| // (3) Our row's top border. |
| result = compareBorders(result, CollapsedBorderValue(&parent()->style()->borderTop(), BROW)); |
| if (!result.exists()) |
| return result; |
| |
| // (4) The previous row's bottom border. |
| if (prevCell) { |
| RenderObject* prevRow = 0; |
| if (prevCell->section() == section()) |
| prevRow = parent()->previousSibling(); |
| else |
| prevRow = prevCell->section()->lastChild(); |
| |
| if (prevRow) { |
| result = compareBorders(result, CollapsedBorderValue(&prevRow->style()->borderBottom(), BROW)); |
| if (!result.exists()) |
| return result; |
| } |
| } |
| |
| // Now check row groups. |
| RenderTableSection* currSection = section(); |
| if (row() == 0) { |
| // (5) Our row group's top border. |
| result = compareBorders(result, CollapsedBorderValue(&currSection->style()->borderTop(), BROWGROUP)); |
| if (!result.exists()) |
| return result; |
| |
| // (6) Previous row group's bottom border. |
| currSection = table()->sectionAbove(currSection); |
| if (currSection) { |
| result = compareBorders(result, CollapsedBorderValue(&currSection->style()->borderBottom(), BROWGROUP)); |
| if (!result.exists()) |
| return result; |
| } |
| } |
| |
| if (!currSection) { |
| // (8) Our column's top border. |
| RenderTableCol* colElt = table()->colElement(col()); |
| if (colElt) { |
| result = compareBorders(result, CollapsedBorderValue(&colElt->style()->borderTop(), BCOL)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| // (9) The table's top border. |
| result = compareBorders(result, CollapsedBorderValue(&table()->style()->borderTop(), BTABLE)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| return result; |
| } |
| |
| CollapsedBorderValue RenderTableCell::collapsedBottomBorder() const |
| { |
| // For border top, we need to check, in order of precedence: |
| // (1) Our bottom border. |
| CollapsedBorderValue result = CollapsedBorderValue(&style()->borderBottom(), BCELL); |
| |
| RenderTableCell* nextCell = table()->cellBelow(this); |
| if (nextCell) { |
| // (2) A following cell's top border. |
| result = compareBorders(result, CollapsedBorderValue(&nextCell->style()->borderTop(), BCELL)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| // (3) Our row's bottom border. (FIXME: Deal with rowspan!) |
| result = compareBorders(result, CollapsedBorderValue(&parent()->style()->borderBottom(), BROW)); |
| if (!result.exists()) |
| return result; |
| |
| // (4) The next row's top border. |
| if (nextCell) { |
| result = compareBorders(result, CollapsedBorderValue(&nextCell->parent()->style()->borderTop(), BROW)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| // Now check row groups. |
| RenderTableSection* currSection = section(); |
| if (row() + rowSpan() >= static_cast<RenderTableSection*>(currSection)->numRows()) { |
| // (5) Our row group's bottom border. |
| result = compareBorders(result, CollapsedBorderValue(&currSection->style()->borderBottom(), BROWGROUP)); |
| if (!result.exists()) |
| return result; |
| |
| // (6) Following row group's top border. |
| currSection = table()->sectionBelow(currSection); |
| if (currSection) { |
| result = compareBorders(result, CollapsedBorderValue(&currSection->style()->borderTop(), BROWGROUP)); |
| if (!result.exists()) |
| return result; |
| } |
| } |
| |
| if (!currSection) { |
| // (8) Our column's bottom border. |
| RenderTableCol* colElt = table()->colElement(col()); |
| if (colElt) { |
| result = compareBorders(result, CollapsedBorderValue(&colElt->style()->borderBottom(), BCOL)); |
| if (!result.exists()) return result; |
| } |
| |
| // (9) The table's bottom border. |
| result = compareBorders(result, CollapsedBorderValue(&table()->style()->borderBottom(), BTABLE)); |
| if (!result.exists()) |
| return result; |
| } |
| |
| return result; |
| } |
| |
| int RenderTableCell::borderLeft() const |
| { |
| if (table()->collapseBorders()) { |
| CollapsedBorderValue border = collapsedLeftBorder(table()->style()->direction() == RTL); |
| if (border.exists()) |
| return (border.width() + 1) / 2; // Give the extra pixel to top and left. |
| return 0; |
| } |
| return RenderBlock::borderLeft(); |
| } |
| |
| int RenderTableCell::borderRight() const |
| { |
| if (table()->collapseBorders()) { |
| CollapsedBorderValue border = collapsedRightBorder(table()->style()->direction() == RTL); |
| if (border.exists()) |
| return border.width() / 2; |
| return 0; |
| } |
| return RenderBlock::borderRight(); |
| } |
| |
| int RenderTableCell::borderTop() const |
| { |
| if (table()->collapseBorders()) { |
| CollapsedBorderValue border = collapsedTopBorder(); |
| if (border.exists()) |
| return (border.width() + 1) / 2; // Give the extra pixel to top and left. |
| return 0; |
| } |
| return RenderBlock::borderTop(); |
| } |
| |
| int RenderTableCell::borderBottom() const |
| { |
| if (table()->collapseBorders()) { |
| CollapsedBorderValue border = collapsedBottomBorder(); |
| if (border.exists()) |
| return border.width() / 2; |
| return 0; |
| } |
| return RenderBlock::borderBottom(); |
| } |
| |
| #ifdef BOX_DEBUG |
| static void outlineBox(GraphicsContext* p, int _tx, int _ty, int w, int h) |
| { |
| p->setPen(Pen(Color("yellow"), 3, Qt::DotLine)); |
| p->setBrush(Qt::NoBrush); |
| p->drawRect(_tx, _ty, w, h); |
| } |
| #endif |
| |
| void RenderTableCell::paint(PaintInfo& paintInfo, int tx, int ty) |
| { |
| tx += m_x; |
| ty += m_y; |
| |
| // check if we need to do anything at all... |
| int os = 2 * maximalOutlineSize(paintInfo.phase); |
| |
| if (paintInfo.phase == PaintPhaseCollapsedTableBorders && style()->visibility() == VISIBLE) { |
| if (ty - table()->outerBorderTop() >= paintInfo.rect.bottom() + os || |
| ty + _topExtra + m_height + _bottomExtra + table()->outerBorderBottom() <= paintInfo.rect.y() - os) |
| return; |
| int w = width(); |
| int h = height() + borderTopExtra() + borderBottomExtra(); |
| paintCollapsedBorder(paintInfo.context, tx, ty, w, h); |
| } else { |
| if (ty >= paintInfo.rect.bottom() + os || ty + _topExtra + m_height + _bottomExtra <= paintInfo.rect.y() - os) |
| return; |
| RenderBlock::paintObject(paintInfo, tx, ty + _topExtra); |
| } |
| |
| #ifdef BOX_DEBUG |
| ::outlineBox(paintInfo.context, tx, ty, width(), height() + borderTopExtra() + borderBottomExtra()); |
| #endif |
| } |
| |
| static EBorderStyle collapsedBorderStyle(EBorderStyle style) |
| { |
| if (style == OUTSET) |
| style = GROOVE; |
| else if (style == INSET) |
| style = RIDGE; |
| return style; |
| } |
| |
| struct CollapsedBorder { |
| CollapsedBorder(){} |
| |
| CollapsedBorderValue border; |
| RenderObject::BorderSide side; |
| bool shouldPaint; |
| int x1; |
| int y1; |
| int x2; |
| int y2; |
| EBorderStyle style; |
| }; |
| |
| class CollapsedBorders |
| { |
| public: |
| CollapsedBorders(int i) :count(0) {} |
| |
| void addBorder(const CollapsedBorderValue& b, RenderObject::BorderSide s, bool paint, |
| int _x1, int _y1, int _x2, int _y2, |
| EBorderStyle _style) |
| { |
| if (b.exists() && paint) { |
| borders[count].border = b; |
| borders[count].side = s; |
| borders[count].shouldPaint = paint; |
| borders[count].x1 = _x1; |
| borders[count].x2 = _x2; |
| borders[count].y1 = _y1; |
| borders[count].y2 = _y2; |
| borders[count].style = _style; |
| count++; |
| } |
| } |
| |
| CollapsedBorder* nextBorder() { |
| for (int i = 0; i < count; i++) { |
| if (borders[i].border.exists() && borders[i].shouldPaint) { |
| borders[i].shouldPaint = false; |
| return &borders[i]; |
| } |
| } |
| |
| return 0; |
| } |
| |
| CollapsedBorder borders[4]; |
| int count; |
| }; |
| |
| static void addBorderStyle(DeprecatedValueList<CollapsedBorderValue>& borderStyles, CollapsedBorderValue borderValue) |
| { |
| if (!borderValue.exists() || borderStyles.contains(borderValue)) |
| return; |
| |
| DeprecatedValueListIterator<CollapsedBorderValue> it = borderStyles.begin(); |
| DeprecatedValueListIterator<CollapsedBorderValue> end = borderStyles.end(); |
| for (; it != end; ++it) { |
| CollapsedBorderValue result = compareBorders(*it, borderValue); |
| if (result == *it) { |
| borderStyles.insert(it, borderValue); |
| return; |
| } |
| } |
| |
| borderStyles.append(borderValue); |
| } |
| |
| void RenderTableCell::collectBorders(DeprecatedValueList<CollapsedBorderValue>& borderStyles) |
| { |
| bool rtl = table()->style()->direction() == RTL; |
| addBorderStyle(borderStyles, collapsedLeftBorder(rtl)); |
| addBorderStyle(borderStyles, collapsedRightBorder(rtl)); |
| addBorderStyle(borderStyles, collapsedTopBorder()); |
| addBorderStyle(borderStyles, collapsedBottomBorder()); |
| } |
| |
| void RenderTableCell::paintCollapsedBorder(GraphicsContext* p, int _tx, int _ty, int w, int h) |
| { |
| if (!table()->currentBorderStyle()) |
| return; |
| |
| bool rtl = table()->style()->direction() == RTL; |
| CollapsedBorderValue leftVal = collapsedLeftBorder(rtl); |
| CollapsedBorderValue rightVal = collapsedRightBorder(rtl); |
| CollapsedBorderValue topVal = collapsedTopBorder(); |
| CollapsedBorderValue bottomVal = collapsedBottomBorder(); |
| |
| // Adjust our x/y/width/height so that we paint the collapsed borders at the correct location. |
| int topWidth = topVal.width(); |
| int bottomWidth = bottomVal.width(); |
| int leftWidth = leftVal.width(); |
| int rightWidth = rightVal.width(); |
| |
| _tx -= leftWidth / 2; |
| _ty -= topWidth / 2; |
| w += leftWidth / 2 + (rightWidth + 1) / 2; |
| h += topWidth / 2 + (bottomWidth + 1) / 2; |
| |
| bool tt = topVal.isTransparent(); |
| bool bt = bottomVal.isTransparent(); |
| bool rt = rightVal.isTransparent(); |
| bool lt = leftVal.isTransparent(); |
| |
| EBorderStyle ts = collapsedBorderStyle(topVal.style()); |
| EBorderStyle bs = collapsedBorderStyle(bottomVal.style()); |
| EBorderStyle ls = collapsedBorderStyle(leftVal.style()); |
| EBorderStyle rs = collapsedBorderStyle(rightVal.style()); |
| |
| bool render_t = ts > BHIDDEN && !tt; |
| bool render_l = ls > BHIDDEN && !lt; |
| bool render_r = rs > BHIDDEN && !rt; |
| bool render_b = bs > BHIDDEN && !bt; |
| |
| // We never paint diagonals at the joins. We simply let the border with the highest |
| // precedence paint on top of borders with lower precedence. |
| CollapsedBorders borders(4); |
| borders.addBorder(topVal, BSTop, render_t, _tx, _ty, _tx + w, _ty + topWidth, ts); |
| borders.addBorder(bottomVal, BSBottom, render_b, _tx, _ty + h - bottomWidth, _tx + w, _ty + h, bs); |
| borders.addBorder(leftVal, BSLeft, render_l, _tx, _ty, _tx + leftWidth, _ty + h, ls); |
| borders.addBorder(rightVal, BSRight, render_r, _tx + w - rightWidth, _ty, _tx + w, _ty + h, rs); |
| |
| for (CollapsedBorder* border = borders.nextBorder(); border; border = borders.nextBorder()) { |
| if (border->border == *table()->currentBorderStyle()) |
| drawBorder(p, border->x1, border->y1, border->x2, border->y2, border->side, |
| border->border.color(), style()->color(), border->style, 0, 0); |
| } |
| } |
| |
| void RenderTableCell::paintBackgroundsBehindCell(PaintInfo& paintInfo, int tx, int ty, RenderObject* backgroundObject) |
| { |
| if (!backgroundObject) |
| return; |
| |
| RenderTable* tableElt = table(); |
| if (!tableElt->collapseBorders() && style()->emptyCells() == HIDE && !firstChild()) |
| return; |
| |
| if (backgroundObject != this) { |
| tx += m_x; |
| ty += m_y + _topExtra; |
| } |
| |
| int w = width(); |
| int h = height() + borderTopExtra() + borderBottomExtra(); |
| ty -= borderTopExtra(); |
| |
| int my = max(ty, paintInfo.rect.y()); |
| int end = min(paintInfo.rect.bottom(), ty + h); |
| int mh = end - my; |
| |
| Color c = backgroundObject->style()->backgroundColor(); |
| const BackgroundLayer* bgLayer = backgroundObject->style()->backgroundLayers(); |
| |
| if (bgLayer->hasImage() || c.isValid()) { |
| // We have to clip here because the background would paint |
| // on top of the borders otherwise. This only matters for cells and rows. |
| bool hasLayer = backgroundObject->layer() && (backgroundObject == this || backgroundObject == parent()); |
| if (hasLayer && tableElt->collapseBorders()) { |
| IntRect clipRect(tx + borderLeft(), ty + borderTop(), |
| w - borderLeft() - borderRight(), h - borderTop() - borderBottom()); |
| paintInfo.context->save(); |
| paintInfo.context->clip(clipRect); |
| } |
| paintBackground(paintInfo.context, c, bgLayer, my, mh, tx, ty, w, h); |
| if (hasLayer && tableElt->collapseBorders()) |
| paintInfo.context->restore(); |
| } |
| } |
| |
| void RenderTableCell::paintBoxDecorations(PaintInfo& paintInfo, int tx, int ty) |
| { |
| RenderTable* tableElt = table(); |
| if (!tableElt->collapseBorders() && style()->emptyCells() == HIDE && !firstChild()) |
| return; |
| |
| // Paint our cell background. |
| paintBackgroundsBehindCell(paintInfo, tx, ty, this); |
| |
| int w = width(); |
| int h = height() + borderTopExtra() + borderBottomExtra(); |
| ty -= borderTopExtra(); |
| |
| if (style()->hasBorder() && !tableElt->collapseBorders()) |
| paintBorder(paintInfo.context, tx, ty, w, h, style()); |
| } |
| |
| #ifndef NDEBUG |
| void RenderTableCell::dump(TextStream *stream, DeprecatedString ind) const |
| { |
| *stream << " row=" << _row; |
| *stream << " col=" << _col; |
| *stream << " rSpan=" << rSpan; |
| *stream << " cSpan=" << cSpan; |
| // *stream << " nWrap=" << nWrap; |
| |
| RenderBlock::dump(stream,ind); |
| } |
| #endif |
| |
| } |
