--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/RenderFieldset.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,278 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ * (C) 1999 Antti Koivisto (koivisto@kde.org)
+ * (C) 2000 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 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., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "RenderFieldset.h"
+
+#include "CSSPropertyNames.h"
+#include "HTMLNames.h"
+#include "GraphicsContext.h"
+
+#if ENABLE(WML)
+#include "WMLNames.h"
+#endif
+
+using std::min;
+using std::max;
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+RenderFieldset::RenderFieldset(Node* element)
+ : RenderBlock(element)
+{
+}
+
+void RenderFieldset::calcPrefWidths()
+{
+ RenderBlock::calcPrefWidths();
+ if (RenderBox* legend = findLegend()) {
+ int legendMinWidth = legend->minPrefWidth();
+
+ Length legendMarginLeft = legend->style()->marginLeft();
+ Length legendMarginRight = legend->style()->marginLeft();
+
+ if (legendMarginLeft.isFixed())
+ legendMinWidth += legendMarginLeft.value();
+
+ if (legendMarginRight.isFixed())
+ legendMinWidth += legendMarginRight.value();
+
+ m_minPrefWidth = max(m_minPrefWidth, legendMinWidth + borderAndPaddingWidth());
+ }
+}
+
+RenderObject* RenderFieldset::layoutLegend(bool relayoutChildren)
+{
+ RenderBox* legend = findLegend();
+ if (legend) {
+ if (relayoutChildren)
+ legend->setNeedsLayout(true);
+ legend->layoutIfNeeded();
+
+ int xPos;
+ if (style()->direction() == RTL) {
+ switch (legend->style()->textAlign()) {
+ case LEFT:
+ xPos = borderLeft() + paddingLeft();
+ break;
+ case CENTER:
+ xPos = (width() - legend->width()) / 2;
+ break;
+ default:
+ xPos = width() - paddingRight() - borderRight() - legend->width() - legend->marginRight();
+ }
+ } else {
+ switch (legend->style()->textAlign()) {
+ case RIGHT:
+ xPos = width() - paddingRight() - borderRight() - legend->width();
+ break;
+ case CENTER:
+ xPos = (width() - legend->width()) / 2;
+ break;
+ default:
+ xPos = borderLeft() + paddingLeft() + legend->marginLeft();
+ }
+ }
+ int b = borderTop();
+ int h = legend->height();
+ legend->setLocation(xPos, max((b-h)/2, 0));
+ setHeight(max(b, h) + paddingTop());
+ }
+ return legend;
+}
+
+RenderBox* RenderFieldset::findLegend() const
+{
+ for (RenderObject* legend = firstChild(); legend; legend = legend->nextSibling()) {
+ if (!legend->isFloatingOrPositioned() && legend->node() &&
+ (legend->node()->hasTagName(legendTag)
+#if ENABLE(WML)
+ || legend->node()->hasTagName(WMLNames::insertedLegendTag)
+#endif
+ )
+ )
+ return toRenderBox(legend);
+ }
+ return 0;
+}
+
+void RenderFieldset::paintBoxDecorations(PaintInfo& paintInfo, int tx, int ty)
+{
+ if (!paintInfo.shouldPaintWithinRoot(this))
+ return;
+
+ int w = width();
+ int h = height();
+ RenderBox* legend = findLegend();
+ if (!legend)
+ return RenderBlock::paintBoxDecorations(paintInfo, tx, ty);
+
+ int yOff = (legend->y() > 0) ? 0 : (legend->height() - borderTop()) / 2;
+ int legendBottom = ty + legend->y() + legend->height();
+ h -= yOff;
+ ty += yOff;
+
+ paintBoxShadow(paintInfo.context, tx, ty, w, h, style(), Normal);
+
+ paintFillLayers(paintInfo, style()->visitedDependentColor(CSSPropertyBackgroundColor), style()->backgroundLayers(), tx, ty, w, h);
+ paintBoxShadow(paintInfo.context, tx, ty, w, h, style(), Inset);
+
+ if (!style()->hasBorder())
+ return;
+
+ // Save time by not saving and restoring the GraphicsContext in the straight border case
+ if (!style()->hasBorderRadius())
+ return paintBorderMinusLegend(paintInfo.context, tx, ty, w, h, style(), legend->x(), legend->width(), legendBottom);
+
+ // We have rounded borders, create a clipping region
+ // around the legend and paint the border as normal
+ GraphicsContext* graphicsContext = paintInfo.context;
+ graphicsContext->save();
+
+ int clipTop = ty;
+ int clipHeight = max(static_cast<int>(style()->borderTopWidth()), legend->height());
+
+ graphicsContext->clipOut(IntRect(tx + legend->x(), clipTop,
+ legend->width(), clipHeight));
+ paintBorder(paintInfo.context, tx, ty, w, h, style(), true, true);
+
+ graphicsContext->restore();
+}
+
+void RenderFieldset::paintMask(PaintInfo& paintInfo, int tx, int ty)
+{
+ if (style()->visibility() != VISIBLE || paintInfo.phase != PaintPhaseMask)
+ return;
+
+ int w = width();
+ int h = height();
+ RenderBox* legend = findLegend();
+ if (!legend)
+ return RenderBlock::paintMask(paintInfo, tx, ty);
+
+ int yOff = (legend->y() > 0) ? 0 : (legend->height() - borderTop()) / 2;
+ h -= yOff;
+ ty += yOff;
+
+ paintMaskImages(paintInfo, tx, ty, w, h);
+}
+
+void RenderFieldset::paintBorderMinusLegend(GraphicsContext* graphicsContext, int tx, int ty, int w, int h,
+ const RenderStyle* style, int lx, int lw, int lb)
+{
+ const Color& tc = style->visitedDependentColor(CSSPropertyBorderTopColor);
+ const Color& bc = style->visitedDependentColor(CSSPropertyBorderBottomColor);
+
+ EBorderStyle ts = style->borderTopStyle();
+ EBorderStyle bs = style->borderBottomStyle();
+ EBorderStyle ls = style->borderLeftStyle();
+ EBorderStyle rs = style->borderRightStyle();
+
+ bool render_t = ts > BHIDDEN;
+ bool render_l = ls > BHIDDEN;
+ bool render_r = rs > BHIDDEN;
+ bool render_b = bs > BHIDDEN;
+
+ int borderLeftWidth = style->borderLeftWidth();
+ int borderRightWidth = style->borderRightWidth();
+
+ if (render_t) {
+ if (lx >= borderLeftWidth)
+ drawLineForBoxSide(graphicsContext, tx, ty, tx + min(lx, w), ty + style->borderTopWidth(), BSTop, tc, ts,
+ (render_l && (ls == DOTTED || ls == DASHED || ls == DOUBLE) ? borderLeftWidth : 0),
+ (lx >= w && render_r && (rs == DOTTED || rs == DASHED || rs == DOUBLE) ? borderRightWidth : 0));
+ if (lx + lw <= w - borderRightWidth)
+ drawLineForBoxSide(graphicsContext, tx + max(0, lx + lw), ty, tx + w, ty + style->borderTopWidth(), BSTop, tc, ts,
+ (lx + lw <= 0 && render_l && (ls == DOTTED || ls == DASHED || ls == DOUBLE) ? borderLeftWidth : 0),
+ (render_r && (rs == DOTTED || rs == DASHED || rs == DOUBLE) ? borderRightWidth : 0));
+ }
+
+ if (render_b)
+ drawLineForBoxSide(graphicsContext, tx, ty + h - style->borderBottomWidth(), tx + w, ty + h, BSBottom, bc, bs,
+ (render_l && (ls == DOTTED || ls == DASHED || ls == DOUBLE) ? style->borderLeftWidth() : 0),
+ (render_r && (rs == DOTTED || rs == DASHED || rs == DOUBLE) ? style->borderRightWidth() : 0));
+
+ if (render_l) {
+ const Color& lc = style->visitedDependentColor(CSSPropertyBorderLeftColor);
+ int startY = ty;
+
+ bool ignore_top =
+ (tc == lc) &&
+ (ls >= OUTSET) &&
+ (ts == DOTTED || ts == DASHED || ts == SOLID || ts == OUTSET);
+
+ bool ignore_bottom =
+ (bc == lc) &&
+ (ls >= OUTSET) &&
+ (bs == DOTTED || bs == DASHED || bs == SOLID || bs == INSET);
+
+ if (lx < borderLeftWidth && lx + lw > 0) {
+ // The legend intersects the border.
+ ignore_top = true;
+ startY = lb;
+ }
+
+ drawLineForBoxSide(graphicsContext, tx, startY, tx + borderLeftWidth, ty + h, BSLeft, lc, ls,
+ ignore_top ? 0 : style->borderTopWidth(), ignore_bottom ? 0 : style->borderBottomWidth());
+ }
+
+ if (render_r) {
+ const Color& rc = style->visitedDependentColor(CSSPropertyBorderRightColor);
+ int startY = ty;
+
+ bool ignore_top =
+ (tc == rc) &&
+ (rs >= DOTTED || rs == INSET) &&
+ (ts == DOTTED || ts == DASHED || ts == SOLID || ts == OUTSET);
+
+ bool ignore_bottom =
+ (bc == rc) &&
+ (rs >= DOTTED || rs == INSET) &&
+ (bs == DOTTED || bs == DASHED || bs == SOLID || bs == INSET);
+
+ if (lx < w && lx + lw > w - borderRightWidth) {
+ // The legend intersects the border.
+ ignore_top = true;
+ startY = lb;
+ }
+
+ drawLineForBoxSide(graphicsContext, tx + w - borderRightWidth, startY, tx + w, ty + h, BSRight, rc, rs,
+ ignore_top ? 0 : style->borderTopWidth(), ignore_bottom ? 0 : style->borderBottomWidth());
+ }
+}
+
+void RenderFieldset::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
+{
+ RenderBlock::styleDidChange(diff, oldStyle);
+
+ // WinIE renders fieldsets with display:inline like they're inline-blocks. For us,
+ // an inline-block is just a block element with replaced set to true and inline set
+ // to true. Ensure that if we ended up being inline that we set our replaced flag
+ // so that we're treated like an inline-block.
+ if (isInline())
+ setReplaced(true);
+}
+
+} // namespace WebCore