| /* |
| * 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, 2007, 2008 Apple Inc. All rights reserved. |
| * 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 "RenderTable.h" |
| |
| #include "AutoTableLayout.h" |
| #include "DeleteButtonController.h" |
| #include "Document.h" |
| #include "FixedTableLayout.h" |
| #include "FrameView.h" |
| #include "HTMLNames.h" |
| #include "RenderLayer.h" |
| #include "RenderTableCell.h" |
| #include "RenderTableCol.h" |
| #include "RenderTableSection.h" |
| #include "RenderView.h" |
| #include "TextStream.h" |
| |
| using namespace std; |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| RenderTable::RenderTable(Node* node) |
| : RenderBlock(node) |
| , m_caption(0) |
| , m_head(0) |
| , m_foot(0) |
| , m_firstBody(0) |
| , m_tableLayout(0) |
| , m_currentBorder(0) |
| , m_frame(Void) |
| , m_rules(None) |
| , m_hasColElements(false) |
| , m_needsSectionRecalc(0) |
| , m_hSpacing(0) |
| , m_vSpacing(0) |
| , m_borderLeft(0) |
| , m_borderRight(0) |
| { |
| m_columnPos.fill(0, 2); |
| m_columns.fill(ColumnStruct(), 1); |
| } |
| |
| RenderTable::~RenderTable() |
| { |
| delete m_tableLayout; |
| } |
| |
| void RenderTable::setStyle(RenderStyle* newStyle) |
| { |
| ETableLayout oldTableLayout = style() ? style()->tableLayout() : TAUTO; |
| RenderBlock::setStyle(newStyle); |
| |
| // In the collapsed border model, there is no cell spacing. |
| m_hSpacing = collapseBorders() ? 0 : style()->horizontalBorderSpacing(); |
| m_vSpacing = collapseBorders() ? 0 : style()->verticalBorderSpacing(); |
| m_columnPos[0] = m_hSpacing; |
| |
| if (!m_tableLayout || style()->tableLayout() != oldTableLayout) { |
| delete m_tableLayout; |
| |
| // According to the CSS2 spec, you only use fixed table layout if an |
| // explicit width is specified on the table. Auto width implies auto table layout. |
| if (style()->tableLayout() == TFIXED && !style()->width().isAuto()) |
| m_tableLayout = new FixedTableLayout(this); |
| else |
| m_tableLayout = new AutoTableLayout(this); |
| } |
| } |
| |
| static inline void resetSectionPointerIfNotBefore(RenderTableSection*& ptr, RenderObject* before) |
| { |
| if (!before || !ptr) |
| return; |
| RenderObject* o = before->previousSibling(); |
| while (o && o != ptr) |
| o = o->previousSibling(); |
| if (!o) |
| ptr = 0; |
| } |
| |
| void RenderTable::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 wrapInAnonymousSection = true; |
| bool isTableElement = element() && element()->hasTagName(tableTag); |
| |
| if (child->isRenderBlock() && child->style()->display() == TABLE_CAPTION) { |
| // First caption wins. |
| if (beforeChild && m_caption) { |
| RenderObject* o = beforeChild->previousSibling(); |
| while (o && o != m_caption) |
| o = o->previousSibling(); |
| if (!o) |
| m_caption = 0; |
| } |
| if (!m_caption) |
| m_caption = static_cast<RenderBlock*>(child); |
| wrapInAnonymousSection = false; |
| } else if (child->isTableCol()) { |
| m_hasColElements = true; |
| wrapInAnonymousSection = false; |
| } else if (child->isTableSection()) { |
| switch (child->style()->display()) { |
| case TABLE_HEADER_GROUP: |
| if (child->isTableSection()) { |
| resetSectionPointerIfNotBefore(m_head, beforeChild); |
| if (!m_head) { |
| m_head = static_cast<RenderTableSection*>(child); |
| } else { |
| resetSectionPointerIfNotBefore(m_firstBody, beforeChild); |
| if (!m_firstBody) |
| m_firstBody = static_cast<RenderTableSection*>(child); |
| } |
| } |
| wrapInAnonymousSection = false; |
| break; |
| case TABLE_FOOTER_GROUP: |
| if (child->isTableSection()) { |
| resetSectionPointerIfNotBefore(m_foot, beforeChild); |
| if (!m_foot) { |
| m_foot = static_cast<RenderTableSection*>(child); |
| wrapInAnonymousSection = false; |
| break; |
| } |
| } |
| // Fall through. |
| case TABLE_ROW_GROUP: |
| if (child->isTableSection()) { |
| resetSectionPointerIfNotBefore(m_firstBody, beforeChild); |
| if (!m_firstBody) |
| m_firstBody = static_cast<RenderTableSection*>(child); |
| } |
| wrapInAnonymousSection = false; |
| break; |
| default: |
| ASSERT_NOT_REACHED(); |
| } |
| } else if (child->isTableCell() || child->isTableRow()) { |
| wrapInAnonymousSection = true; |
| } else { |
| // Allow a form to just sit at the top level. |
| wrapInAnonymousSection = !isTableElement || !child->element() || !(child->element()->hasTagName(formTag) && document()->isHTMLDocument()); |
| |
| // FIXME: Allow the delete button container element to sit at the top level. This is needed until http://bugs.webkit.org/show_bug.cgi?id=11363 is fixed. |
| if (wrapInAnonymousSection && child->element() && child->element()->isHTMLElement() && static_cast<HTMLElement*>(child->element())->id() == DeleteButtonController::containerElementIdentifier) |
| wrapInAnonymousSection = false; |
| } |
| |
| if (!wrapInAnonymousSection) { |
| // If the next renderer is actually wrapped in an anonymous table section, we need to go up and find that. |
| while (beforeChild && !beforeChild->isTableSection() && !beforeChild->isTableCol() && beforeChild->style()->display() != TABLE_CAPTION) |
| beforeChild = beforeChild->parent(); |
| |
| RenderContainer::addChild(child, beforeChild); |
| return; |
| } |
| |
| if (!beforeChild && lastChild() && lastChild()->isTableSection() && lastChild()->isAnonymous()) { |
| lastChild()->addChild(child); |
| return; |
| } |
| |
| RenderObject* lastBox = beforeChild; |
| while (lastBox && lastBox->parent()->isAnonymous() && !lastBox->isTableSection() && lastBox->style()->display() != TABLE_CAPTION) |
| lastBox = lastBox->parent(); |
| if (lastBox && lastBox->isAnonymous() && !isAfterContent(lastBox)) { |
| lastBox->addChild(child, beforeChild); |
| return; |
| } |
| |
| if (beforeChild && !beforeChild->isTableSection() && beforeChild->style()->display() != TABLE_CAPTION) |
| beforeChild = 0; |
| RenderTableSection* section = new (renderArena()) RenderTableSection(document() /* anonymous */); |
| RenderStyle* newStyle = new (renderArena()) RenderStyle(); |
| newStyle->inheritFrom(style()); |
| newStyle->setDisplay(TABLE_ROW_GROUP); |
| section->setStyle(newStyle); |
| addChild(section, beforeChild); |
| section->addChild(child); |
| } |
| |
| void RenderTable::calcWidth() |
| { |
| if (isPositioned()) |
| calcAbsoluteHorizontal(); |
| |
| RenderBlock* cb = containingBlock(); |
| int availableWidth = cb->availableWidth(); |
| |
| LengthType widthType = style()->width().type(); |
| if (widthType > Relative && style()->width().isPositive()) { |
| // Percent or fixed table |
| m_width = style()->width().calcMinValue(availableWidth); |
| m_width = max(minPrefWidth(), m_width); |
| } else { |
| // An auto width table should shrink to fit within the line width if necessary in order to |
| // avoid overlapping floats. |
| availableWidth = cb->lineWidth(m_y); |
| |
| // Subtract out any fixed margins from our available width for auto width tables. |
| int marginTotal = 0; |
| if (!style()->marginLeft().isAuto()) |
| marginTotal += style()->marginLeft().calcValue(availableWidth); |
| if (!style()->marginRight().isAuto()) |
| marginTotal += style()->marginRight().calcValue(availableWidth); |
| |
| // Subtract out our margins to get the available content width. |
| int availContentWidth = max(0, availableWidth - marginTotal); |
| |
| // Ensure we aren't bigger than our max width or smaller than our min width. |
| m_width = min(availContentWidth, maxPrefWidth()); |
| } |
| |
| m_width = max(m_width, minPrefWidth()); |
| |
| // Finally, with our true width determined, compute our margins for real. |
| m_marginRight = 0; |
| m_marginLeft = 0; |
| calcHorizontalMargins(style()->marginLeft(), style()->marginRight(), availableWidth); |
| } |
| |
| void RenderTable::layout() |
| { |
| ASSERT(needsLayout()); |
| |
| if (layoutOnlyPositionedObjects()) |
| return; |
| |
| recalcSectionsIfNeeded(); |
| |
| IntRect oldBounds; |
| IntRect oldOutlineBox; |
| bool checkForRepaint = checkForRepaintDuringLayout(); |
| if (checkForRepaint) { |
| oldBounds = absoluteClippedOverflowRect(); |
| oldOutlineBox = absoluteOutlineBox(); |
| } |
| |
| view()->pushLayoutState(this, IntSize(m_x, m_y)); |
| |
| m_height = 0; |
| m_overflowHeight = 0; |
| m_overflowTop = 0; |
| initMaxMarginValues(); |
| |
| int oldWidth = m_width; |
| calcWidth(); |
| |
| if (m_caption && m_width != oldWidth) |
| m_caption->setNeedsLayout(true, false); |
| |
| // FIXME: The optimisation below doesn't work since the internal table |
| // layout could have changed. we need to add a flag to the table |
| // layout that tells us if something has changed in the min max |
| // calculations to do it correctly. |
| // if ( oldWidth != m_width || columns.size() + 1 != columnPos.size() ) |
| m_tableLayout->layout(); |
| |
| setCellWidths(); |
| |
| // layout child objects |
| int calculatedHeight = 0; |
| int oldTableTop = m_caption ? m_caption->height() + m_caption->marginTop() + m_caption->marginBottom() : 0; |
| |
| RenderObject* child = firstChild(); |
| while (child) { |
| // FIXME: What about a form that has a display value that makes it a table section? |
| if (child->needsLayout() && !(child->element() && child->element()->hasTagName(formTag))) |
| child->layout(); |
| if (child->isTableSection()) { |
| static_cast<RenderTableSection*>(child)->calcRowHeight(); |
| calculatedHeight += static_cast<RenderTableSection*>(child)->layoutRows(0); |
| } |
| child = child->nextSibling(); |
| } |
| |
| m_overflowWidth = m_width + (collapseBorders() ? outerBorderRight() - borderRight() : 0); |
| m_overflowLeft = collapseBorders() ? borderLeft() - outerBorderLeft() : 0; |
| |
| // If any table section moved vertically, we will just repaint everything from that |
| // section down (it is quite unlikely that any of the following sections |
| // did not shift). |
| bool sectionMoved = false; |
| int movedSectionTop = 0; |
| |
| // FIXME: Collapse caption margin. |
| if (m_caption && m_caption->style()->captionSide() != CAPBOTTOM) { |
| IntRect captionRect(m_caption->xPos(), m_caption->yPos(), m_caption->width(), m_caption->height()); |
| |
| m_caption->setPos(m_caption->marginLeft(), m_height); |
| if (!selfNeedsLayout() && m_caption->checkForRepaintDuringLayout()) |
| m_caption->repaintDuringLayoutIfMoved(captionRect); |
| |
| m_height += m_caption->height() + m_caption->marginTop() + m_caption->marginBottom(); |
| m_overflowLeft = min(m_overflowLeft, m_caption->xPos() + m_caption->overflowLeft(false)); |
| m_overflowWidth = max(m_overflowWidth, m_caption->xPos() + m_caption->overflowWidth(false)); |
| m_overflowTop = min(m_overflowTop, m_caption->yPos() + m_caption->overflowTop(false)); |
| m_overflowHeight = max(m_overflowHeight, m_caption->yPos() + m_caption->overflowHeight(false)); |
| |
| if (m_height != oldTableTop) { |
| sectionMoved = true; |
| movedSectionTop = min(m_height, oldTableTop); |
| } |
| } |
| |
| int bpTop = borderTop() + (collapseBorders() ? 0 : paddingTop()); |
| int bpBottom = borderBottom() + (collapseBorders() ? 0 : paddingBottom()); |
| |
| m_height += bpTop; |
| |
| int oldHeight = m_height; |
| if (!isPositioned()) |
| calcHeight(); |
| m_height = oldHeight; |
| |
| Length h = style()->height(); |
| int th = 0; |
| if (h.isFixed()) |
| // Tables size as though CSS height includes border/padding. |
| th = h.value() - (bpTop + bpBottom); |
| else if (h.isPercent()) |
| th = calcPercentageHeight(h); |
| th = max(0, th); |
| |
| // layout rows |
| if (th > calculatedHeight) { |
| // we have to redistribute that height to get the constraint correctly |
| // just force the first body to the height needed |
| // FIXME: This should take height constraints on all table sections into account and distribute |
| // accordingly. For now this should be good enough. |
| if (m_firstBody) { |
| m_firstBody->calcRowHeight(); |
| m_firstBody->layoutRows(th - calculatedHeight); |
| } else if (!style()->htmlHacks()) |
| // Completely empty tables (with no sections or anything) should at least honor specified height |
| // in strict mode. |
| m_height += th; |
| } |
| |
| int bl = borderLeft(); |
| if (!collapseBorders()) |
| bl += paddingLeft(); |
| |
| // position the table sections |
| RenderTableSection* section = m_head ? m_head : (m_firstBody ? m_firstBody : m_foot); |
| while (section) { |
| if (!sectionMoved && section->yPos() != m_height) { |
| sectionMoved = true; |
| movedSectionTop = min(m_height, section->yPos()) + section->overflowTop(false); |
| } |
| section->setPos(bl, m_height); |
| |
| m_height += section->height(); |
| m_overflowLeft = min(m_overflowLeft, section->xPos() + section->overflowLeft(false)); |
| m_overflowWidth = max(m_overflowWidth, section->xPos() + section->overflowWidth(false)); |
| m_overflowTop = min(m_overflowTop, section->yPos() + section->overflowTop(false)); |
| m_overflowHeight = max(m_overflowHeight, section->yPos() + section->overflowHeight(false)); |
| section = sectionBelow(section); |
| } |
| |
| m_height += bpBottom; |
| |
| if (m_caption && m_caption->style()->captionSide() == CAPBOTTOM) { |
| IntRect captionRect(m_caption->xPos(), m_caption->yPos(), m_caption->width(), m_caption->height()); |
| |
| m_caption->setPos(m_caption->marginLeft(), m_height); |
| if (!selfNeedsLayout() && m_caption->checkForRepaintDuringLayout()) |
| m_caption->repaintDuringLayoutIfMoved(captionRect); |
| |
| m_height += m_caption->height() + m_caption->marginTop() + m_caption->marginBottom(); |
| m_overflowLeft = min(m_overflowLeft, m_caption->xPos() + m_caption->overflowLeft(false)); |
| m_overflowWidth = max(m_overflowWidth, m_caption->xPos() + m_caption->overflowWidth(false)); |
| } |
| |
| if (isPositioned()) |
| calcHeight(); |
| |
| m_overflowHeight = max(m_overflowHeight, m_height); |
| |
| // table can be containing block of positioned elements. |
| // FIXME: Only pass true if width or height changed. |
| layoutPositionedObjects(true); |
| |
| if (!hasOverflowClip()) { |
| if (ShadowData* boxShadow = style()->boxShadow()) { |
| m_overflowLeft = min(m_overflowLeft, boxShadow->x - boxShadow->blur); |
| m_overflowWidth = max(m_overflowWidth, m_width + boxShadow->x + boxShadow->blur); |
| m_overflowTop = min(m_overflowTop, boxShadow->y - boxShadow->blur); |
| m_overflowHeight = max(m_overflowHeight, m_height + boxShadow->y + boxShadow->blur); |
| } |
| } |
| |
| view()->popLayoutState(); |
| |
| bool didFullRepaint = true; |
| // Repaint with our new bounds if they are different from our old bounds. |
| if (checkForRepaint) |
| didFullRepaint = repaintAfterLayoutIfNeeded(oldBounds, oldOutlineBox); |
| if (!didFullRepaint && sectionMoved) { |
| IntRect repaintRect(m_overflowLeft, movedSectionTop, m_overflowWidth - m_overflowLeft, m_overflowHeight - movedSectionTop); |
| if (FrameView* frameView = view()->frameView()) |
| frameView->addRepaintInfo(this, repaintRect); |
| } |
| |
| setNeedsLayout(false); |
| } |
| |
| void RenderTable::setCellWidths() |
| { |
| for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { |
| if (child->isTableSection()) |
| static_cast<RenderTableSection*>(child)->setCellWidths(); |
| } |
| } |
| |
| void RenderTable::paint(PaintInfo& paintInfo, int tx, int ty) |
| { |
| tx += xPos(); |
| ty += yPos(); |
| |
| PaintPhase paintPhase = paintInfo.phase; |
| |
| int os = 2 * maximalOutlineSize(paintPhase); |
| if (ty + overflowTop(false) >= paintInfo.rect.bottom() + os || ty + overflowHeight(false) <= paintInfo.rect.y() - os) |
| return; |
| if (tx + overflowLeft(false) >= paintInfo.rect.right() + os || tx + overflowWidth(false) <= paintInfo.rect.x() - os) |
| return; |
| |
| if ((paintPhase == PaintPhaseBlockBackground || paintPhase == PaintPhaseChildBlockBackground) && hasBoxDecorations() && style()->visibility() == VISIBLE) |
| paintBoxDecorations(paintInfo, tx, ty); |
| |
| // We're done. We don't bother painting any children. |
| if (paintPhase == PaintPhaseBlockBackground) |
| return; |
| |
| // We don't paint our own background, but we do let the kids paint their backgrounds. |
| if (paintPhase == PaintPhaseChildBlockBackgrounds) |
| paintPhase = PaintPhaseChildBlockBackground; |
| PaintInfo info(paintInfo); |
| info.phase = paintPhase; |
| info.paintingRoot = paintingRootForChildren(paintInfo); |
| |
| for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { |
| if (!child->hasLayer() && (child->isTableSection() || child == m_caption)) |
| child->paint(info, tx, ty); |
| } |
| |
| if (collapseBorders() && paintPhase == PaintPhaseChildBlockBackground && style()->visibility() == VISIBLE) { |
| // Collect all the unique border styles that we want to paint in a sorted list. Once we |
| // have all the styles sorted, we then do individual passes, painting each style of border |
| // from lowest precedence to highest precedence. |
| info.phase = PaintPhaseCollapsedTableBorders; |
| RenderTableCell::CollapsedBorderStyles borderStyles; |
| RenderObject* stop = nextInPreOrderAfterChildren(); |
| for (RenderObject* o = firstChild(); o && o != stop; o = o->nextInPreOrder()) |
| if (o->isTableCell()) |
| static_cast<RenderTableCell*>(o)->collectBorderStyles(borderStyles); |
| RenderTableCell::sortBorderStyles(borderStyles); |
| size_t count = borderStyles.size(); |
| for (size_t i = 0; i < count; ++i) { |
| m_currentBorder = &borderStyles[i]; |
| for (RenderObject* child = firstChild(); child; child = child->nextSibling()) |
| if (child->isTableSection()) |
| child->paint(info, tx, ty); |
| } |
| m_currentBorder = 0; |
| } |
| } |
| |
| void RenderTable::paintBoxDecorations(PaintInfo& paintInfo, int tx, int ty) |
| { |
| int w = width(); |
| int h = height(); |
| |
| // Account for the caption. |
| if (m_caption) { |
| int captionHeight = (m_caption->height() + m_caption->marginBottom() + m_caption->marginTop()); |
| h -= captionHeight; |
| if (m_caption->style()->captionSide() != CAPBOTTOM) |
| ty += captionHeight; |
| } |
| |
| int my = max(ty, paintInfo.rect.y()); |
| int mh; |
| if (ty < paintInfo.rect.y()) |
| mh = max(0, h - (paintInfo.rect.y() - ty)); |
| else |
| mh = min(paintInfo.rect.height(), h); |
| |
| paintBoxShadow(paintInfo.context, tx, ty, w, h, style()); |
| |
| paintBackground(paintInfo.context, style()->backgroundColor(), style()->backgroundLayers(), my, mh, tx, ty, w, h); |
| |
| if (style()->hasBorder() && !collapseBorders()) |
| paintBorder(paintInfo.context, tx, ty, w, h, style()); |
| } |
| |
| void RenderTable::calcPrefWidths() |
| { |
| ASSERT(prefWidthsDirty()); |
| |
| recalcSectionsIfNeeded(); |
| recalcHorizontalBorders(); |
| |
| m_tableLayout->calcPrefWidths(m_minPrefWidth, m_maxPrefWidth); |
| |
| if (m_caption) |
| m_minPrefWidth = max(m_minPrefWidth, m_caption->minPrefWidth()); |
| |
| setPrefWidthsDirty(false); |
| } |
| |
| void RenderTable::splitColumn(int pos, int firstSpan) |
| { |
| // we need to add a new columnStruct |
| int oldSize = m_columns.size(); |
| m_columns.grow(oldSize + 1); |
| int oldSpan = m_columns[pos].span; |
| ASSERT(oldSpan > firstSpan); |
| m_columns[pos].span = firstSpan; |
| memmove(m_columns.data() + pos + 1, m_columns.data() + pos, (oldSize - pos) * sizeof(ColumnStruct)); |
| m_columns[pos + 1].span = oldSpan - firstSpan; |
| |
| // change width of all rows. |
| for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { |
| if (child->isTableSection()) |
| static_cast<RenderTableSection*>(child)->splitColumn(pos, oldSize + 1); |
| } |
| |
| m_columnPos.grow(numEffCols() + 1); |
| setNeedsLayoutAndPrefWidthsRecalc(); |
| } |
| |
| void RenderTable::appendColumn(int span) |
| { |
| // easy case. |
| int pos = m_columns.size(); |
| int newSize = pos + 1; |
| m_columns.grow(newSize); |
| m_columns[pos].span = span; |
| |
| // change width of all rows. |
| for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { |
| if (child->isTableSection()) |
| static_cast<RenderTableSection*>(child)->appendColumn(pos); |
| } |
| |
| m_columnPos.grow(numEffCols() + 1); |
| setNeedsLayoutAndPrefWidthsRecalc(); |
| } |
| |
| RenderTableCol* RenderTable::colElement(int col, bool* startEdge, bool* endEdge) const |
| { |
| if (!m_hasColElements) |
| return 0; |
| RenderObject* child = firstChild(); |
| int cCol = 0; |
| |
| while (child) { |
| if (child->isTableCol()) { |
| RenderTableCol* colElem = static_cast<RenderTableCol*>(child); |
| int span = colElem->span(); |
| if (!colElem->firstChild()) { |
| int startCol = cCol; |
| int endCol = cCol + span - 1; |
| cCol += span; |
| if (cCol > col) { |
| if (startEdge) |
| *startEdge = startCol == col; |
| if (endEdge) |
| *endEdge = endCol == col; |
| return colElem; |
| } |
| } |
| |
| RenderObject* next = child->firstChild(); |
| if (!next) |
| next = child->nextSibling(); |
| if (!next && child->parent()->isTableCol()) |
| next = child->parent()->nextSibling(); |
| child = next; |
| } else if (child == m_caption) |
| child = child->nextSibling(); |
| else |
| break; |
| } |
| |
| return 0; |
| } |
| |
| void RenderTable::recalcSections() const |
| { |
| m_caption = 0; |
| m_head = 0; |
| m_foot = 0; |
| m_firstBody = 0; |
| m_hasColElements = false; |
| |
| // We need to get valid pointers to caption, head, foot and first body again |
| for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { |
| switch (child->style()->display()) { |
| case TABLE_CAPTION: |
| if (!m_caption && child->isRenderBlock()) { |
| m_caption = static_cast<RenderBlock*>(child); |
| m_caption->setNeedsLayout(true); |
| } |
| break; |
| case TABLE_COLUMN: |
| case TABLE_COLUMN_GROUP: |
| m_hasColElements = true; |
| break; |
| case TABLE_HEADER_GROUP: |
| if (child->isTableSection()) { |
| RenderTableSection* section = static_cast<RenderTableSection*>(child); |
| if (!m_head) |
| m_head = section; |
| else if (!m_firstBody) |
| m_firstBody = section; |
| section->recalcCellsIfNeeded(); |
| } |
| break; |
| case TABLE_FOOTER_GROUP: |
| if (child->isTableSection()) { |
| RenderTableSection* section = static_cast<RenderTableSection*>(child); |
| if (!m_foot) |
| m_foot = section; |
| else if (!m_firstBody) |
| m_firstBody = section; |
| section->recalcCellsIfNeeded(); |
| } |
| break; |
| case TABLE_ROW_GROUP: |
| if (child->isTableSection()) { |
| RenderTableSection* section = static_cast<RenderTableSection*>(child); |
| if (!m_firstBody) |
| m_firstBody = section; |
| section->recalcCellsIfNeeded(); |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| |
| // repair column count (addChild can grow it too much, because it always adds elements to the last row of a section) |
| int maxCols = 0; |
| for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { |
| if (child->isTableSection()) { |
| RenderTableSection* section = static_cast<RenderTableSection*>(child); |
| int sectionCols = section->numColumns(); |
| if (sectionCols > maxCols) |
| maxCols = sectionCols; |
| } |
| } |
| |
| m_columns.resize(maxCols); |
| m_columnPos.resize(maxCols + 1); |
| |
| ASSERT(selfNeedsLayout()); |
| |
| m_needsSectionRecalc = false; |
| } |
| |
| RenderObject* RenderTable::removeChildNode(RenderObject* child, bool fullRemove) |
| { |
| setNeedsSectionRecalc(); |
| return RenderContainer::removeChildNode(child, fullRemove); |
| } |
| |
| int RenderTable::calcBorderLeft() const |
| { |
| if (collapseBorders()) { |
| // Determined by the first cell of the first row. See the CSS 2.1 spec, section 17.6.2. |
| if (!numEffCols()) |
| return 0; |
| |
| unsigned borderWidth = 0; |
| |
| const BorderValue& tb = style()->borderLeft(); |
| if (tb.style() == BHIDDEN) |
| return 0; |
| if (tb.style() > BHIDDEN) |
| borderWidth = tb.width; |
| |
| int leftmostColumn = style()->direction() == RTL ? numEffCols() - 1 : 0; |
| RenderTableCol* colGroup = colElement(leftmostColumn); |
| if (colGroup) { |
| const BorderValue& gb = style()->borderLeft(); |
| if (gb.style() == BHIDDEN) |
| return 0; |
| if (gb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<unsigned>(gb.width)); |
| } |
| |
| RenderTableSection* firstNonEmptySection = m_head ? m_head : (m_firstBody ? m_firstBody : m_foot); |
| if (firstNonEmptySection && !firstNonEmptySection->numRows()) |
| firstNonEmptySection = sectionBelow(firstNonEmptySection, true); |
| |
| if (firstNonEmptySection) { |
| const BorderValue& sb = firstNonEmptySection->style()->borderLeft(); |
| if (sb.style() == BHIDDEN) |
| return 0; |
| |
| if (sb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<unsigned>(sb.width)); |
| |
| const RenderTableSection::CellStruct& cs = firstNonEmptySection->cellAt(0, leftmostColumn); |
| |
| if (cs.cell) { |
| const BorderValue& cb = cs.cell->style()->borderLeft(); |
| if (cb.style() == BHIDDEN) |
| return 0; |
| |
| const BorderValue& rb = cs.cell->parent()->style()->borderLeft(); |
| if (rb.style() == BHIDDEN) |
| return 0; |
| |
| if (cb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<unsigned>(cb.width)); |
| if (rb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<unsigned>(rb.width)); |
| } |
| } |
| return borderWidth / 2; |
| } |
| return RenderBlock::borderLeft(); |
| } |
| |
| int RenderTable::calcBorderRight() const |
| { |
| if (collapseBorders()) { |
| // Determined by the last cell of the first row. See the CSS 2.1 spec, section 17.6.2. |
| if (!numEffCols()) |
| return 0; |
| |
| unsigned borderWidth = 0; |
| |
| const BorderValue& tb = style()->borderRight(); |
| if (tb.style() == BHIDDEN) |
| return 0; |
| if (tb.style() > BHIDDEN) |
| borderWidth = tb.width; |
| |
| int rightmostColumn = style()->direction() == RTL ? 0 : numEffCols() - 1; |
| RenderTableCol* colGroup = colElement(rightmostColumn); |
| if (colGroup) { |
| const BorderValue& gb = style()->borderRight(); |
| if (gb.style() == BHIDDEN) |
| return 0; |
| if (gb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<unsigned>(gb.width)); |
| } |
| |
| RenderTableSection* firstNonEmptySection = m_head ? m_head : (m_firstBody ? m_firstBody : m_foot); |
| if (firstNonEmptySection && !firstNonEmptySection->numRows()) |
| firstNonEmptySection = sectionBelow(firstNonEmptySection, true); |
| |
| if (firstNonEmptySection) { |
| const BorderValue& sb = firstNonEmptySection->style()->borderRight(); |
| if (sb.style() == BHIDDEN) |
| return 0; |
| |
| if (sb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<unsigned>(sb.width)); |
| |
| const RenderTableSection::CellStruct& cs = firstNonEmptySection->cellAt(0, rightmostColumn); |
| |
| if (cs.cell) { |
| const BorderValue& cb = cs.cell->style()->borderRight(); |
| if (cb.style() == BHIDDEN) |
| return 0; |
| |
| const BorderValue& rb = cs.cell->parent()->style()->borderRight(); |
| if (rb.style() == BHIDDEN) |
| return 0; |
| |
| if (cb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<unsigned>(cb.width)); |
| if (rb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<unsigned>(rb.width)); |
| } |
| } |
| return (borderWidth + 1) / 2; |
| } |
| return RenderBlock::borderRight(); |
| } |
| |
| void RenderTable::recalcHorizontalBorders() |
| { |
| m_borderLeft = calcBorderLeft(); |
| m_borderRight = calcBorderRight(); |
| } |
| |
| int RenderTable::borderTop() const |
| { |
| if (collapseBorders()) |
| return outerBorderTop(); |
| return RenderBlock::borderTop(); |
| } |
| |
| int RenderTable::borderBottom() const |
| { |
| if (collapseBorders()) |
| return outerBorderBottom(); |
| return RenderBlock::borderBottom(); |
| } |
| |
| int RenderTable::outerBorderTop() const |
| { |
| if (!collapseBorders()) |
| return 0; |
| int borderWidth = 0; |
| RenderTableSection* topSection; |
| if (m_head) |
| topSection = m_head; |
| else if (m_firstBody) |
| topSection = m_firstBody; |
| else if (m_foot) |
| topSection = m_foot; |
| else |
| topSection = 0; |
| if (topSection) { |
| borderWidth = topSection->outerBorderTop(); |
| if (borderWidth == -1) |
| return 0; // Overridden by hidden |
| } |
| const BorderValue& tb = style()->borderTop(); |
| if (tb.style() == BHIDDEN) |
| return 0; |
| if (tb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<int>(tb.width / 2)); |
| return borderWidth; |
| } |
| |
| int RenderTable::outerBorderBottom() const |
| { |
| if (!collapseBorders()) |
| return 0; |
| int borderWidth = 0; |
| RenderTableSection* bottomSection; |
| if (m_foot) |
| bottomSection = m_foot; |
| else { |
| RenderObject* child; |
| for (child = lastChild(); child && !child->isTableSection(); child = child->previousSibling()) |
| ; |
| bottomSection = child ? static_cast<RenderTableSection*>(child) : 0; |
| } |
| if (bottomSection) { |
| borderWidth = bottomSection->outerBorderBottom(); |
| if (borderWidth == -1) |
| return 0; // Overridden by hidden |
| } |
| const BorderValue& tb = style()->borderBottom(); |
| if (tb.style() == BHIDDEN) |
| return 0; |
| if (tb.style() > BHIDDEN) |
| borderWidth = max(borderWidth, static_cast<int>((tb.width + 1) / 2)); |
| return borderWidth; |
| } |
| |
| int RenderTable::outerBorderLeft() const |
| { |
| if (!collapseBorders()) |
| return 0; |
| |
| int borderWidth = 0; |
| |
| const BorderValue& tb = style()->borderLeft(); |
| if (tb.style() == BHIDDEN) |
| return 0; |
| if (tb.style() > BHIDDEN) |
| borderWidth = tb.width / 2; |
| |
| bool allHidden = true; |
| for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { |
| if (!child->isTableSection()) |
| continue; |
| int sw = static_cast<RenderTableSection*>(child)->outerBorderLeft(); |
| if (sw == -1) |
| continue; |
| else |
| allHidden = false; |
| borderWidth = max(borderWidth, sw); |
| } |
| if (allHidden) |
| return 0; |
| |
| return borderWidth; |
| } |
| |
| int RenderTable::outerBorderRight() const |
| { |
| if (!collapseBorders()) |
| return 0; |
| |
| int borderWidth = 0; |
| |
| const BorderValue& tb = style()->borderRight(); |
| if (tb.style() == BHIDDEN) |
| return 0; |
| if (tb.style() > BHIDDEN) |
| borderWidth = (tb.width + 1) / 2; |
| |
| bool allHidden = true; |
| for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { |
| if (!child->isTableSection()) |
| continue; |
| int sw = static_cast<RenderTableSection*>(child)->outerBorderRight(); |
| if (sw == -1) |
| continue; |
| else |
| allHidden = false; |
| borderWidth = max(borderWidth, sw); |
| } |
| if (allHidden) |
| return 0; |
| |
| return borderWidth; |
| } |
| |
| RenderTableSection* RenderTable::sectionAbove(const RenderTableSection* section, bool skipEmptySections) const |
| { |
| recalcSectionsIfNeeded(); |
| |
| if (section == m_head) |
| return 0; |
| |
| RenderObject* prevSection = section == m_foot ? lastChild() : section->previousSibling(); |
| while (prevSection) { |
| if (prevSection->isTableSection() && prevSection != m_head && prevSection != m_foot && (!skipEmptySections || static_cast<RenderTableSection*>(prevSection)->numRows())) |
| break; |
| prevSection = prevSection->previousSibling(); |
| } |
| if (!prevSection && m_head && (!skipEmptySections || m_head->numRows())) |
| prevSection = m_head; |
| return static_cast<RenderTableSection*>(prevSection); |
| } |
| |
| RenderTableSection* RenderTable::sectionBelow(const RenderTableSection* section, bool skipEmptySections) const |
| { |
| recalcSectionsIfNeeded(); |
| |
| if (section == m_foot) |
| return 0; |
| |
| RenderObject* nextSection = section == m_head ? firstChild() : section->nextSibling(); |
| while (nextSection) { |
| if (nextSection->isTableSection() && nextSection != m_head && nextSection != m_foot && (!skipEmptySections || static_cast<RenderTableSection*>(nextSection)->numRows())) |
| break; |
| nextSection = nextSection->nextSibling(); |
| } |
| if (!nextSection && m_foot && (!skipEmptySections || m_foot->numRows())) |
| nextSection = m_foot; |
| return static_cast<RenderTableSection*>(nextSection); |
| } |
| |
| RenderTableCell* RenderTable::cellAbove(const RenderTableCell* cell) const |
| { |
| recalcSectionsIfNeeded(); |
| |
| // Find the section and row to look in |
| int r = cell->row(); |
| RenderTableSection* section = 0; |
| int rAbove = 0; |
| if (r > 0) { |
| // cell is not in the first row, so use the above row in its own section |
| section = cell->section(); |
| rAbove = r - 1; |
| } else { |
| section = sectionAbove(cell->section(), true); |
| if (section) |
| rAbove = section->numRows() - 1; |
| } |
| |
| // Look up the cell in the section's grid, which requires effective col index |
| if (section) { |
| int effCol = colToEffCol(cell->col()); |
| RenderTableSection::CellStruct aboveCell; |
| // If we hit a span back up to a real cell. |
| do { |
| aboveCell = section->cellAt(rAbove, effCol); |
| effCol--; |
| } while (!aboveCell.cell && aboveCell.inColSpan && effCol >= 0); |
| return aboveCell.cell; |
| } else |
| return 0; |
| } |
| |
| RenderTableCell* RenderTable::cellBelow(const RenderTableCell* cell) const |
| { |
| recalcSectionsIfNeeded(); |
| |
| // Find the section and row to look in |
| int r = cell->row() + cell->rowSpan() - 1; |
| RenderTableSection* section = 0; |
| int rBelow = 0; |
| if (r < cell->section()->numRows() - 1) { |
| // The cell is not in the last row, so use the next row in the section. |
| section = cell->section(); |
| rBelow = r + 1; |
| } else { |
| section = sectionBelow(cell->section(), true); |
| if (section) |
| rBelow = 0; |
| } |
| |
| // Look up the cell in the section's grid, which requires effective col index |
| if (section) { |
| int effCol = colToEffCol(cell->col()); |
| RenderTableSection::CellStruct belowCell; |
| // If we hit a colspan back up to a real cell. |
| do { |
| belowCell = section->cellAt(rBelow, effCol); |
| effCol--; |
| } while (!belowCell.cell && belowCell.inColSpan && effCol >= 0); |
| return belowCell.cell; |
| } else |
| return 0; |
| } |
| |
| RenderTableCell* RenderTable::cellBefore(const RenderTableCell* cell) const |
| { |
| recalcSectionsIfNeeded(); |
| |
| RenderTableSection* section = cell->section(); |
| int effCol = colToEffCol(cell->col()); |
| if (!effCol) |
| return 0; |
| |
| // If we hit a colspan back up to a real cell. |
| RenderTableSection::CellStruct prevCell; |
| do { |
| prevCell = section->cellAt(cell->row(), effCol - 1); |
| effCol--; |
| } while (!prevCell.cell && prevCell.inColSpan && effCol >= 0); |
| return prevCell.cell; |
| } |
| |
| RenderTableCell* RenderTable::cellAfter(const RenderTableCell* cell) const |
| { |
| recalcSectionsIfNeeded(); |
| |
| int effCol = colToEffCol(cell->col() + cell->colSpan()); |
| if (effCol >= numEffCols()) |
| return 0; |
| return cell->section()->cellAt(cell->row(), effCol).cell; |
| } |
| |
| RenderBlock* RenderTable::firstLineBlock() const |
| { |
| return 0; |
| } |
| |
| void RenderTable::updateFirstLetter() |
| { |
| } |
| |
| IntRect RenderTable::getOverflowClipRect(int tx, int ty) |
| { |
| IntRect rect = RenderBlock::getOverflowClipRect(tx, ty); |
| |
| // If we have a caption, expand the clip to include the caption. |
| // FIXME: Technically this is wrong, but it's virtually impossible to fix this |
| // for real until captions have been re-written. |
| // FIXME: This code assumes (like all our other caption code) that only top/bottom are |
| // supported. When we actually support left/right and stop mapping them to top/bottom, |
| // we might have to hack this code first (depending on what order we do these bug fixes in). |
| if (m_caption) { |
| rect.setHeight(height()); |
| rect.setY(ty); |
| } |
| |
| return rect; |
| } |
| |
| #ifndef NDEBUG |
| void RenderTable::dump(TextStream* stream, DeprecatedString ind) const |
| { |
| if (m_caption) |
| *stream << " tCaption"; |
| if (m_head) |
| *stream << " head"; |
| if (m_foot) |
| *stream << " foot"; |
| |
| *stream << endl << ind << "cspans:"; |
| for (unsigned i = 0; i < m_columns.size(); i++) |
| *stream << " " << m_columns[i].span; |
| *stream << endl << ind; |
| |
| RenderBlock::dump(stream, ind); |
| } |
| #endif |
| |
| } |
