RenderFieldset.cpp [plain text]
#include "config.h"
#include "RenderFieldset.h"
#include "HTMLGenericFormElement.h"
#include "HTMLNames.h"
using std::min;
using std::max;
namespace WebCore {
using namespace HTMLNames;
RenderFieldset::RenderFieldset(HTMLGenericFormElement* element)
: RenderBlock(element)
{
}
RenderObject* RenderFieldset::layoutLegend(bool relayoutChildren)
{
RenderObject* legend = findLegend();
if (legend) {
if (relayoutChildren)
legend->setNeedsLayout(true);
legend->layoutIfNeeded();
int xPos = borderLeft() + paddingLeft() + legend->marginLeft();
if (style()->direction() == RTL)
xPos = m_width - paddingRight() - borderRight() - legend->width() - legend->marginRight();
int b = borderTop();
int h = legend->height();
legend->setPos(xPos, max((b-h)/2, 0));
m_height = max(b,h) + paddingTop();
}
return legend;
}
RenderObject* RenderFieldset::findLegend()
{
for (RenderObject* legend = firstChild(); legend; legend = legend->nextSibling()) {
if (!legend->isFloatingOrPositioned() && legend->element() &&
legend->element()->hasTagName(legendTag))
return legend;
}
return 0;
}
void RenderFieldset::paintBoxDecorations(PaintInfo& i, int _tx, int _ty)
{
int w = width();
int h = height() + borderTopExtra() + borderBottomExtra();
RenderObject* legend = findLegend();
if (!legend)
return RenderBlock::paintBoxDecorations(i, _tx, _ty);
int yOff = (legend->yPos() > 0) ? 0 : (legend->height()-borderTop())/2;
h -= yOff;
_ty += yOff - borderTopExtra();
int my = max(_ty, i.r.y());
int end = min(i.r.bottom(), _ty + h);
int mh = end - my;
paintBackground(i.p, style()->backgroundColor(), style()->backgroundLayers(), my, mh, _tx, _ty, w, h);
if (style()->hasBorder())
paintBorderMinusLegend(i.p, _tx, _ty, w, h, style(), legend->xPos(), legend->width());
}
void RenderFieldset::paintBorderMinusLegend(GraphicsContext* p, int _tx, int _ty, int w, int h,
const RenderStyle* style, int lx, int lw)
{
const Color& tc = style->borderTopColor();
const Color& bc = style->borderBottomColor();
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;
if (render_t) {
drawBorder(p, _tx, _ty, _tx + lx, _ty + style->borderTopWidth(), BSTop, tc, style->color(), ts,
(render_l && (ls == DOTTED || ls == DASHED || ls == DOUBLE)?style->borderLeftWidth():0), 0);
drawBorder(p, _tx+lx+lw, _ty, _tx + w, _ty + style->borderTopWidth(), BSTop, tc, style->color(), ts,
0, (render_r && (rs == DOTTED || rs == DASHED || rs == DOUBLE)?style->borderRightWidth():0));
}
if (render_b)
drawBorder(p, _tx, _ty + h - style->borderBottomWidth(), _tx + w, _ty + h, BSBottom, bc, style->color(), 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->borderLeftColor();
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);
drawBorder(p, _tx, _ty, _tx + style->borderLeftWidth(), _ty + h, BSLeft, lc, style->color(), ls,
ignore_top?0:style->borderTopWidth(),
ignore_bottom?0:style->borderBottomWidth());
}
if (render_r) {
const Color& rc = style->borderRightColor();
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);
drawBorder(p, _tx + w - style->borderRightWidth(), _ty, _tx + w, _ty + h, BSRight, rc, style->color(), rs,
ignore_top?0:style->borderTopWidth(),
ignore_bottom?0:style->borderBottomWidth());
}
}
void RenderFieldset::setStyle(RenderStyle* _style)
{
RenderBlock::setStyle(_style);
if (isInline())
setReplaced(true);
}
}