using namespace DOM;
using namespace khtml;
#ifndef NDEBUG
static void *baseOfRenderObjectBeingDeleted;
#endif
void* RenderObject::operator new(size_t sz, RenderArena* renderArena) throw()
{
return renderArena->allocate(sz);
}
void RenderObject::operator delete(void* ptr, size_t sz)
{
assert(baseOfRenderObjectBeingDeleted == ptr);
// Stash size where detach can find it.
*(size_t *)ptr = sz;
}
RenderObject *RenderObject::createObject(DOM::NodeImpl* node, RenderStyle* style)
{
RenderObject *o = 0;
RenderArena* arena = node->getDocument()->renderArena();
switch(style->display())
{
case NONE:
break;
case INLINE:
case BLOCK:
// In compat mode, if has a display of block, build a table cell instead.
// This corrects erroneous HTML. A better fix would be to implement full-blown
// CSS2 anonymous table render object construction, but until then, this will have
// to suffice. -dwh
if (style->display() == BLOCK && node->id() == ID_TD && style->htmlHacks())
o = new (arena) RenderTableCell(node);
// In quirks mode if has a display of block, make a table. If it has
// a display of inline, make an inline-table.
else if (node->id() == ID_TABLE && style->htmlHacks())
o = new (arena) RenderTable(node);
else if (style->display() == INLINE)
o = new (arena) RenderInline(node);
else
o = new (arena) RenderBlock(node);
break;
case LIST_ITEM:
o = new (arena) RenderListItem(node);
break;
case RUN_IN:
case COMPACT:
o = new (arena) RenderBlock(node);
break;
case MARKER:
break;
case TABLE:
case INLINE_TABLE:
//kdDebug( 6040 ) << "creating RenderTable" << endl;
o = new (arena) RenderTable(node);
break;
case TABLE_ROW_GROUP:
case TABLE_HEADER_GROUP:
case TABLE_FOOTER_GROUP:
o = new (arena) RenderTableSection(node);
break;
case TABLE_ROW:
o = new (arena) RenderTableRow(node);
break;
case TABLE_COLUMN_GROUP:
case TABLE_COLUMN:
o = new (arena) RenderTableCol(node);
break;
case TABLE_CELL:
o = new (arena) RenderTableCell(node);
break;
case TABLE_CAPTION:
o = new (arena) RenderBlock(node);
break;
}
if(o) o->setStyle(style);
return o;
}
RenderObject::RenderObject(DOM::NodeImpl* node)
: CachedObjectClient(),
m_style( 0 ),
m_node( node ),
m_parent( 0 ),
m_previous( 0 ),
m_next( 0 ),
m_verticalPosition( PositionUndefined ),
m_needsLayout( true ),
m_unused( false ),
m_minMaxKnown( false ),
m_floating( false ),
m_positioned( false ),
m_overhangingContents( false ),
m_relPositioned( false ),
m_paintBackground( false ),
m_isAnonymous( false ),
m_recalcMinMax( false ),
m_isText( false ),
m_inline( true ),
m_replaced( false ),
m_mouseInside( false ),
m_hasFirstLine( false ),
m_isSelectionBorder( false )
{
}
RenderObject::~RenderObject()
{
if(m_style->backgroundImage())
m_style->backgroundImage()->deref(this);
if (m_style)
m_style->deref();
}
bool RenderObject::isRoot() const {
return element() && element()->renderer() == this &&
element()->getDocument()->documentElement() == element();
}
bool RenderObject::canHaveChildren() const
{
return false;
}
void RenderObject::addChild(RenderObject* , RenderObject *)
{
KHTMLAssert(0);
}
RenderObject* RenderObject::removeChildNode(RenderObject* )
{
KHTMLAssert(0);
return 0;
}
void RenderObject::removeChild(RenderObject* )
{
KHTMLAssert(0);
}
void RenderObject::appendChildNode(RenderObject*)
{
KHTMLAssert(0);
}
void RenderObject::insertChildNode(RenderObject*, RenderObject*)
{
KHTMLAssert(0);
}
static void addLayers(RenderObject* obj, RenderLayer* parentLayer, RenderObject*& newObject,
RenderLayer*& beforeChild)
{
if (obj->layer()) {
if (!beforeChild && newObject) {
// We need to figure out the layer that follows newObject. We only do
// this the first time we find a child layer, and then we update the
// pointer values for newObject and beforeChild used by everyone else.
beforeChild = newObject->parent()->findNextLayer(parentLayer, newObject);
newObject = 0;
}
parentLayer->addChild(obj->layer(), beforeChild);
return;
}
for (RenderObject* curr = obj->firstChild(); curr; curr = curr->nextSibling())
addLayers(curr, parentLayer, newObject, beforeChild);
}
void RenderObject::addLayers(RenderLayer* parentLayer, RenderObject* newObject)
{
if (!parentLayer)
return;
RenderObject* object = newObject;
RenderLayer* beforeChild = 0;
::addLayers(this, parentLayer, object, beforeChild);
}
void RenderObject::removeLayers(RenderLayer* parentLayer)
{
if (!parentLayer)
return;
if (layer()) {
parentLayer->removeChild(layer());
return;
}
for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling())
curr->removeLayers(parentLayer);
}
void RenderObject::moveLayers(RenderLayer* oldParent, RenderLayer* newParent)
{
if (!newParent)
return;
if (layer()) {
if (oldParent)
oldParent->removeChild(layer());
newParent->addChild(layer());
return;
}
for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling())
curr->moveLayers(oldParent, newParent);
}
RenderLayer* RenderObject::findNextLayer(RenderLayer* parentLayer, RenderObject* startPoint,
bool checkParent)
{
// Error check the parent layer passed in. If it's null, we can't find anything.
if (!parentLayer)
return 0;
// Step 1: Descend into our siblings trying to find the next layer. If we do find
// a layer, and if its parent layer matches our desired parent layer, then we have
// a match.
for (RenderObject* curr = startPoint ? startPoint->nextSibling() : firstChild();
curr; curr = curr->nextSibling()) {
RenderLayer* nextLayer = curr->findNextLayer(parentLayer, 0, false);
if (nextLayer) {
if (nextLayer->parent() == parentLayer)
return nextLayer;
return 0;
}
}
// Step 2: If our layer is the desired parent layer, then we're finished. We didn't
// find anything.
RenderLayer* ourLayer = layer();
if (parentLayer == ourLayer)
return 0;
// Step 3: If we have a layer, then return that layer. It will be checked against
// the desired parent layer in the for loop above.
if (ourLayer)
return ourLayer;
// Step 4: If |checkParent| is set, climb up to our parent and check its siblings that
// follow us to see if we can locate a layer.
if (checkParent && parent())
return parent()->findNextLayer(parentLayer, this, true);
return 0;
}
RenderLayer* RenderObject::enclosingLayer()
{
RenderObject* curr = this;
while (curr) {
RenderLayer *layer = curr->layer();
if (layer)
return layer;
curr = curr->parent();
}
return 0;
}
int RenderObject::offsetLeft() const
{
int x = xPos();
if (!isPositioned()) {
if (isRelPositioned()) {
int y = 0;
((RenderBox*)this)->relativePositionOffset(x, y);
}
RenderObject* offsetPar = offsetParent();
RenderObject* curr = parent();
while (curr && curr != offsetPar) {
x += curr->xPos();
curr = curr->parent();
}
}
return x;
}
int RenderObject::offsetTop() const
{
int y = yPos();
if (!isPositioned()) {
if (isRelPositioned()) {
int x = 0;
((RenderBox*)this)->relativePositionOffset(x, y);
}
RenderObject* offsetPar = offsetParent();
RenderObject* curr = parent();
while (curr && curr != offsetPar) {
y += curr->yPos();
curr = curr->parent();
}
}
return y;
}
RenderObject* RenderObject::offsetParent() const
{
bool skipTables = isPositioned() || isRelPositioned();
RenderObject* curr = parent();
while (curr && !curr->isPositioned() && !curr->isRelPositioned() &&
!curr->isBody()) {
if (!skipTables && (curr->isTableCell() || curr->isTable()))
break;
curr = curr->parent();
}
return curr;
}
// More IE extensions. clientWidth and clientHeight represent the interior of an object
// excluding border and scrollbar.
short
RenderObject::clientWidth() const
{
return width() - borderLeft() - borderRight() -
(layer() ? layer()->verticalScrollbarWidth() : 0);
}
short
RenderObject::clientHeight() const
{
return height() - borderTop() - borderBottom() -
(layer() ? layer()->horizontalScrollbarHeight() : 0);
}
// scrollWidth/scrollHeight will be the same as clientWidth/clientHeight unless the
// object has overflow:hidden/scroll/auto specified and also has overflow.
short
RenderObject::scrollWidth() const
{
return (style()->hidesOverflow() && layer()) ? layer()->scrollWidth() : clientWidth();
}
short
RenderObject::scrollHeight() const
{
return (style()->hidesOverflow() && layer()) ? layer()->scrollHeight() : clientHeight();
}
bool
RenderObject::hasStaticX() const
{
return (style()->left().isVariable() && style()->right().isVariable()) ||
style()->left().isStatic() ||
style()->right().isStatic();
}
bool
RenderObject::hasStaticY() const
{
return (style()->top().isVariable() && style()->bottom().isVariable()) || style()->top().isStatic();
}
void RenderObject::markAllDescendantsWithFloatsForLayout(RenderObject*)
{
}
void RenderObject::setNeedsLayout(bool b)
{
m_needsLayout = b;
if (b) {
RenderObject *o = container();
RenderObject *root = this;
// If an attempt is made to
// setNeedsLayout(true) an object inside a clipped (overflow:hidden) object, we
// have to make sure to repaint only the clipped rectangle.
// We do this by passing an argument to scheduleRelayout. This hint really
// shouldn't be needed, and it's unfortunate that it is necessary. -dwh
RenderObject* clippedObj =
(style()->hidesOverflow() && !isText()) ? this : 0;
while( o ) {
root = o;
o->m_needsLayout = true;
if (o->style()->hidesOverflow() && !clippedObj)
clippedObj = o;
o = o->container();
}
root->scheduleRelayout(clippedObj);
}
}
RenderBlock* RenderObject::containingBlock() const
{
if(isTableCell())
return static_cast(this)->table();
if (isCanvas())
return (RenderBlock*)this;
RenderObject *o = parent();
if (m_style->position() == FIXED) {
while ( o && !o->isCanvas() )
o = o->parent();
}
else if (m_style->position() == ABSOLUTE) {
while (o && (o->style()->position() == STATIC || (o->isInline() && !o->isReplaced()))
&& !o->isRoot() && !o->isCanvas())
o = o->parent();
} else {
while (o && ((o->isInline() && !o->isReplaced()) || o->isTableRow() || o->isTableSection()
|| o->isTableCol()))
o = o->parent();
}
if (!o || !o->isRenderBlock())
// This can happen because of setOverhangingContents in RenderImage's setStyle method.
return 0;
return static_cast(o);
}
short RenderObject::containingBlockWidth() const
{
// ###
return containingBlock()->contentWidth();
}
int RenderObject::containingBlockHeight() const
{
// ###
return containingBlock()->contentHeight();
}
bool RenderObject::sizesToMaxWidth() const
{
return isFloating() || isCompact() ||
(element() && (element()->id() == ID_BUTTON || element()->id() == ID_LEGEND));
}
void RenderObject::drawBorder(QPainter *p, int x1, int y1, int x2, int y2,
BorderSide s, QColor c, const QColor& textcolor, EBorderStyle style,
int adjbw1, int adjbw2, bool invalidisInvert)
{
int width = (s==BSTop||s==BSBottom?y2-y1:x2-x1);
if(style == DOUBLE && width < 3)
style = SOLID;
if(!c.isValid()) {
if(invalidisInvert)
{
p->setRasterOp(Qt::XorROP);
c = Qt::white;
}
else {
if(style == INSET || style == OUTSET || style == RIDGE || style ==
GROOVE)
c.setRgb(238, 238, 238);
else
c = textcolor;
}
}
switch(style)
{
case BNONE:
case BHIDDEN:
// should not happen
if(invalidisInvert && p->rasterOp() == Qt::XorROP)
p->setRasterOp(Qt::CopyROP);
return;
case DOTTED:
p->setPen(QPen(c, width == 1 ? 0 : width, Qt::DotLine));
/* nobreak; */
case DASHED:
if(style == DASHED)
p->setPen(QPen(c, width == 1 ? 0 : width, Qt::DashLine));
if (width > 0)
switch(s)
{
case BSBottom:
case BSTop:
p->drawLine(x1, (y1+y2)/2, x2, (y1+y2)/2);
break;
case BSRight:
case BSLeft:
p->drawLine((x1+x2)/2, y1, (x1+x2)/2, y2);
break;
}
break;
case DOUBLE:
{
int third = (width+1)/3;
if (adjbw1 == 0 && adjbw2 == 0)
{
p->setPen(Qt::NoPen);
p->setBrush(c);
switch(s)
{
case BSTop:
case BSBottom:
p->drawRect(x1, y1 , x2-x1, third);
p->drawRect(x1, y2-third, x2-x1, third);
break;
case BSLeft:
p->drawRect(x1 , y1+1, third, y2-y1-1);
p->drawRect(x2-third, y1+1, third, y2-y1-1);
break;
case BSRight:
p->drawRect(x1 , y1+1, third, y2-y1-1);
p->drawRect(x2-third, y1+1, third, y2-y1-1);
break;
}
}
else
{
int adjbw1bigthird;
if (adjbw1>0) adjbw1bigthird = adjbw1+1;
else adjbw1bigthird = adjbw1 - 1;
adjbw1bigthird /= 3;
int adjbw2bigthird;
if (adjbw2>0) adjbw2bigthird = adjbw2 + 1;
else adjbw2bigthird = adjbw2 - 1;
adjbw2bigthird /= 3;
switch(s)
{
case BSTop:
drawBorder(p, x1+QMAX((-adjbw1*2+1)/3,0), y1 , x2-QMAX((-adjbw2*2+1)/3,0), y1 + third, s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
drawBorder(p, x1+QMAX(( adjbw1*2+1)/3,0), y2 - third, x2-QMAX(( adjbw2*2+1)/3,0), y2 , s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
break;
case BSLeft:
drawBorder(p, x1 , y1+QMAX((-adjbw1*2+1)/3,0), x1+third, y2-QMAX((-adjbw2*2+1)/3,0), s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
drawBorder(p, x2 - third, y1+QMAX(( adjbw1*2+1)/3,0), x2 , y2-QMAX(( adjbw2*2+1)/3,0), s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
break;
case BSBottom:
drawBorder(p, x1+QMAX(( adjbw1*2+1)/3,0), y1 , x2-QMAX(( adjbw2*2+1)/3,0), y1+third, s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
drawBorder(p, x1+QMAX((-adjbw1*2+1)/3,0), y2-third, x2-QMAX((-adjbw2*2+1)/3,0), y2 , s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
break;
case BSRight:
drawBorder(p, x1 , y1+QMAX(( adjbw1*2+1)/3,0), x1+third, y2-QMAX(( adjbw2*2+1)/3,0), s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
drawBorder(p, x2-third, y1+QMAX((-adjbw1*2+1)/3,0), x2 , y2-QMAX((-adjbw2*2+1)/3,0), s, c, textcolor, SOLID, adjbw1bigthird, adjbw2bigthird);
break;
default:
break;
}
}
break;
}
case RIDGE:
case GROOVE:
{
EBorderStyle s1;
EBorderStyle s2;
if (style==GROOVE)
{
s1 = INSET;
s2 = OUTSET;
}
else
{
s1 = OUTSET;
s2 = INSET;
}
int adjbw1bighalf;
int adjbw2bighalf;
if (adjbw1>0) adjbw1bighalf=adjbw1+1;
else adjbw1bighalf=adjbw1-1;
adjbw1bighalf/=2;
if (adjbw2>0) adjbw2bighalf=adjbw2+1;
else adjbw2bighalf=adjbw2-1;
adjbw2bighalf/=2;
switch (s)
{
case BSTop:
drawBorder(p, x1+QMAX(-adjbw1 ,0)/2, y1 , x2-QMAX(-adjbw2,0)/2, (y1+y2+1)/2, s, c, textcolor, s1, adjbw1bighalf, adjbw2bighalf);
drawBorder(p, x1+QMAX( adjbw1+1,0)/2, (y1+y2+1)/2, x2-QMAX( adjbw2+1,0)/2, y2 , s, c, textcolor, s2, adjbw1/2, adjbw2/2);
break;
case BSLeft:
drawBorder(p, x1 , y1+QMAX(-adjbw1 ,0)/2, (x1+x2+1)/2, y2-QMAX(-adjbw2,0)/2, s, c, textcolor, s1, adjbw1bighalf, adjbw2bighalf);
drawBorder(p, (x1+x2+1)/2, y1+QMAX( adjbw1+1,0)/2, x2 , y2-QMAX( adjbw2+1,0)/2, s, c, textcolor, s2, adjbw1/2, adjbw2/2);
break;
case BSBottom:
drawBorder(p, x1+QMAX( adjbw1 ,0)/2, y1 , x2-QMAX( adjbw2,0)/2, (y1+y2+1)/2, s, c, textcolor, s2, adjbw1bighalf, adjbw2bighalf);
drawBorder(p, x1+QMAX(-adjbw1+1,0)/2, (y1+y2+1)/2, x2-QMAX(-adjbw2+1,0)/2, y2 , s, c, textcolor, s1, adjbw1/2, adjbw2/2);
break;
case BSRight:
drawBorder(p, x1 , y1+QMAX( adjbw1 ,0)/2, (x1+x2+1)/2, y2-QMAX( adjbw2,0)/2, s, c, textcolor, s2, adjbw1bighalf, adjbw2bighalf);
drawBorder(p, (x1+x2+1)/2, y1+QMAX(-adjbw1+1,0)/2, x2 , y2-QMAX(-adjbw2+1,0)/2, s, c, textcolor, s1, adjbw1/2, adjbw2/2);
break;
}
break;
}
case INSET:
if(s == BSTop || s == BSLeft)
c = c.dark();
/* nobreak; */
case OUTSET:
if(style == OUTSET && (s == BSBottom || s == BSRight))
c = c.dark();
/* nobreak; */
case SOLID:
QPointArray quad(4);
p->setPen(Qt::NoPen);
p->setBrush(c);
Q_ASSERT(x2>=x1);
Q_ASSERT(y2>=y1);
if (adjbw1==0 && adjbw2 == 0)
{
p->drawRect(x1,y1,x2-x1,y2-y1);
return;
}
switch(s) {
case BSTop:
quad.setPoints(4,
x1+QMAX(-adjbw1,0), y1,
x1+QMAX( adjbw1,0), y2,
x2-QMAX( adjbw2,0), y2,
x2-QMAX(-adjbw2,0), y1);
break;
case BSBottom:
quad.setPoints(4,
x1+QMAX( adjbw1,0), y1,
x1+QMAX(-adjbw1,0), y2,
x2-QMAX(-adjbw2,0), y2,
x2-QMAX( adjbw2,0), y1);
break;
case BSLeft:
quad.setPoints(4,
x1, y1+QMAX(-adjbw1,0),
x1, y2-QMAX(-adjbw2,0),
x2, y2-QMAX( adjbw2,0),
x2, y1+QMAX( adjbw1,0));
break;
case BSRight:
quad.setPoints(4,
x1, y1+QMAX( adjbw1,0),
x1, y2-QMAX( adjbw2,0),
x2, y2-QMAX(-adjbw2,0),
x2, y1+QMAX(-adjbw1,0));
break;
}
p->drawConvexPolygon(quad);
break;
}
if(invalidisInvert && p->rasterOp() == Qt::XorROP)
p->setRasterOp(Qt::CopyROP);
}
void RenderObject::paintBorder(QPainter *p, int _tx, int _ty, int w, int h, const RenderStyle* style, bool begin, bool end)
{
const QColor& tc = style->borderTopColor();
const QColor& bc = style->borderBottomColor();
const QColor& lc = style->borderLeftColor();
const QColor& rc = style->borderRightColor();
bool tt = style->borderTopIsTransparent();
bool bt = style->borderBottomIsTransparent();
bool rt = style->borderRightIsTransparent();
bool lt = style->borderLeftIsTransparent();
EBorderStyle ts = style->borderTopStyle();
EBorderStyle bs = style->borderBottomStyle();
EBorderStyle ls = style->borderLeftStyle();
EBorderStyle rs = style->borderRightStyle();
bool render_t = ts > BHIDDEN && !tt;
bool render_l = ls > BHIDDEN && begin && !lt;
bool render_r = rs > BHIDDEN && end && !rt;
bool render_b = bs > BHIDDEN && !bt;
if(render_t) {
bool ignore_left =
(tc == lc) && (tt == lt) &&
(ts <= OUTSET) &&
(ls == DOTTED || ls == DASHED || ls == SOLID || ls == OUTSET);
bool ignore_right =
(tc == rc) && (tt == rt) &&
(ts <= OUTSET) &&
(rs == DOTTED || rs == DASHED || rs == SOLID || rs == INSET);
drawBorder(p, _tx, _ty, _tx + w, _ty + style->borderTopWidth(), BSTop, tc, style->color(), ts,
ignore_left?0:style->borderLeftWidth(),
ignore_right?0:style->borderRightWidth());
}
if(render_b) {
bool ignore_left =
(bc == lc) && (bt == lt) &&
(bs <= OUTSET) &&
(ls == DOTTED || ls == DASHED || ls == SOLID || ls == OUTSET);
bool ignore_right =
(bc == rc) && (bt == rt) &&
(bs <= OUTSET) &&
(rs == DOTTED || rs == DASHED || rs == SOLID || rs == INSET);
drawBorder(p, _tx, _ty + h - style->borderBottomWidth(), _tx + w, _ty + h, BSBottom, bc, style->color(), bs,
ignore_left?0:style->borderLeftWidth(),
ignore_right?0:style->borderRightWidth());
}
if(render_l)
{
bool ignore_top =
(tc == lc) && (tt == lt) &&
(ls <= OUTSET) &&
(ts == DOTTED || ts == DASHED || ts == SOLID || ts == OUTSET);
bool ignore_bottom =
(bc == lc) && (bt == lt) &&
(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)
{
bool ignore_top =
(tc == rc) && (tt == rt) &&
(rs <= SOLID || rs == INSET) &&
(ts == DOTTED || ts == DASHED || ts == SOLID || ts == OUTSET);
bool ignore_bottom =
(bc == rc) && (bt == rt) &&
(rs <= SOLID || 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 RenderObject::paintOutline(QPainter *p, int _tx, int _ty, int w, int h, const RenderStyle* style)
{
int ow = style->outlineWidth();
if(!ow) return;
const QColor& oc = style->outlineColor();
EBorderStyle os = style->outlineStyle();
drawBorder(p, _tx-ow, _ty-ow, _tx, _ty+h+ow, BSLeft,
QColor(oc), style->color(),
os, ow, ow, true);
drawBorder(p, _tx-ow, _ty-ow, _tx+w+ow, _ty, BSTop,
QColor(oc), style->color(),
os, ow, ow, true);
drawBorder(p, _tx+w, _ty-ow, _tx+w+ow, _ty+h+ow, BSRight,
QColor(oc), style->color(),
os, ow, ow, true);
drawBorder(p, _tx-ow, _ty+h, _tx+w+ow, _ty+h+ow, BSBottom,
QColor(oc), style->color(),
os, ow, ow, true);
}
void RenderObject::paint(QPainter *p, int x, int y, int w, int h, int tx, int ty,
PaintAction paintAction)
{
paintObject(p, x, y, w, h, tx, ty, paintAction);
}
void RenderObject::repaintRectangle(int x, int y, int w, int h, bool immediate, bool f)
{
if(parent()) parent()->repaintRectangle(x, y, w, h, immediate, f);
}
#ifndef NDEBUG
QString RenderObject::information() const
{
QString str;
QTextStream ts( &str, IO_WriteOnly );
ts << renderName()
<< "(" << (style() ? style()->refCount() : 0) << ")"
<< ": " << (void*)this << " ";
if (isInline()) ts << "il ";
if (childrenInline()) ts << "ci ";
if (isFloating()) ts << "fl ";
if (isAnonymousBox()) ts << "an ";
if (isRelPositioned()) ts << "rp ";
if (isPositioned()) ts << "ps ";
if (overhangingContents()) ts << "oc ";
if (needsLayout()) ts << "nl ";
if (m_recalcMinMax) ts << "rmm ";
if (mouseInside()) ts << "mi ";
if (style() && style()->zIndex()) ts << "zI: " << style()->zIndex();
if (element() && element()->active()) ts << "act ";
if (element() && element()->hasAnchor()) ts << "anchor ";
if (element() && element()->focused()) ts << "focus ";
if (element()) ts << " <" << getTagName(element()->id()).string() << ">";
ts << " (" << xPos() << "," << yPos() << "," << width() << "," << height() << ")"
<< (isTableCell() ?
( QString::fromLatin1(" [r=") +
QString::number( static_cast(this)->row() ) +
QString::fromLatin1(" c=") +
QString::number( static_cast(this)->col() ) +
QString::fromLatin1(" rs=") +
QString::number( static_cast(this)->rowSpan() ) +
QString::fromLatin1(" cs=") +
QString::number( static_cast(this)->colSpan() ) +
QString::fromLatin1("]") ) : QString::null );
return str;
}
void RenderObject::printTree(int indent) const
{
QString ind;
ind.fill(' ', indent);
kdDebug() << ind << information() << endl;
RenderObject *child = firstChild();
while( child != 0 )
{
child->printTree(indent+2);
child = child->nextSibling();
}
}
void RenderObject::dump(QTextStream *stream, QString ind) const
{
if (isAnonymousBox()) { *stream << " anonymousBox"; }
if (isFloating()) { *stream << " floating"; }
if (isPositioned()) { *stream << " positioned"; }
if (isRelPositioned()) { *stream << " relPositioned"; }
if (isText()) { *stream << " text"; }
if (isInline()) { *stream << " inline"; }
if (isReplaced()) { *stream << " replaced"; }
if (shouldPaintBackgroundOrBorder()) { *stream << " paintBackground"; }
if (needsLayout()) { *stream << " needsLayout"; }
if (minMaxKnown()) { *stream << " minMaxKnown"; }
if (overhangingContents()) { *stream << " overhangingContents"; }
if (hasFirstLine()) { *stream << " hasFirstLine"; }
*stream << endl;
RenderObject *child = firstChild();
while( child != 0 )
{
*stream << ind << child->renderName() << ": ";
child->dump(stream,ind+" ");
child = child->nextSibling();
}
}
#endif
void RenderObject::selectionStartEnd(int& spos, int& epos)
{
if (parent())
parent()->selectionStartEnd(spos, epos);
}
RenderBlock* RenderObject::createAnonymousBlock()
{
RenderStyle *newStyle = new RenderStyle();
newStyle->inheritFrom(m_style);
newStyle->setDisplay(BLOCK);
RenderBlock *newBox = new (renderArena()) RenderBlock(0 /* anonymous box */);
newBox->setStyle(newStyle);
newBox->setIsAnonymousBox(true);
return newBox;
}
void RenderObject::handleDynamicFloatPositionChange()
{
// We have gone from not affecting the inline status of the parent flow to suddenly
// having an impact. See if there is a mismatch between the parent flow's
// childrenInline() state and our state.
setInline(m_style->display() == INLINE || // m_style->display() == INLINE_BLOCK ||
m_style->display() == INLINE_TABLE);
if (isInline() != parent()->childrenInline()) {
if (!isInline()) {
if (parent()->isRenderInline()) {
// We have to split the parent flow.
RenderInline* parentInline = static_cast(parent());
RenderBlock* newBox = parentInline->createAnonymousBlock();
RenderFlow* oldContinuation = parent()->continuation();
parentInline->setContinuation(newBox);
RenderObject* beforeChild = nextSibling();
parent()->removeChildNode(this);
parentInline->splitFlow(beforeChild, newBox, this, oldContinuation);
}
else if (parent()->isRenderBlock())
static_cast(parent())->makeChildrenNonInline();
}
else {
// An anonymous block must be made to wrap this inline.
RenderBlock* box = createAnonymousBlock();
parent()->insertChildNode(box, this);
box->appendChildNode(parent()->removeChildNode(this));
}
}
}
void RenderObject::setStyle(RenderStyle *style)
{
if (m_style == style)
return;
RenderStyle::Diff d = m_style ? m_style->diff( style ) : RenderStyle::Layout;
if (m_style && m_parent && d == RenderStyle::Visible && !isText())
// Do a repaint with the old style first, e.g., for example if we go from
// having an outline to not having an outline.
repaint();
if (m_style && isFloating() && (m_style->floating() != style->floating()))
// For changes in float styles, we need to conceivably remove ourselves
// from the floating objects list.
removeFromObjectLists();
else if (isPositioned() && (style->position() != ABSOLUTE && style->position() != FIXED))
// For changes in positioning styles, we need to conceivably remove ourselves
// from the positioned objects list.
removeFromObjectLists();
bool affectsParentBlock = m_style && isFloatingOrPositioned() &&
(!style->isFloating() && style->position() != ABSOLUTE && style->position() != FIXED)
&& parent() && (parent()->isBlockFlow() || parent()->isInlineFlow());
//qDebug("new style, diff=%d", d);
// reset style flags
m_floating = false;
m_positioned = false;
m_relPositioned = false;
m_paintBackground = false;
// no support for changing the display type dynamically... object must be
// detached and re-attached as a different type
//m_inline = true;
RenderStyle *oldStyle = m_style;
m_style = style;
CachedImage* ob = 0;
CachedImage* nb = 0;
if (m_style)
{
m_style->ref();
nb = m_style->backgroundImage();
}
if (oldStyle)
{
ob = oldStyle->backgroundImage();
oldStyle->deref();
}
if( ob != nb ) {
if(ob) ob->deref(this);
if(nb) nb->ref(this);
}
setShouldPaintBackgroundOrBorder(m_style->backgroundColor().isValid() ||
m_style->hasBorder() || nb );
m_hasFirstLine = (style->getPseudoStyle(RenderStyle::FIRST_LINE) != 0);
if (affectsParentBlock)
handleDynamicFloatPositionChange();
if ( d >= RenderStyle::Position && m_parent ) {
//qDebug("triggering relayout");
setNeedsLayoutAndMinMaxRecalc();
} else if ( m_parent && !isText()) {
//qDebug("triggering repaint");
repaint();
}
}
void RenderObject::setOverhangingContents(bool p)
{
if (m_overhangingContents == p)
return;
RenderObject *cb = containingBlock();
if (p)
{
m_overhangingContents = true;
if (cb && cb != this)
cb->setOverhangingContents();
}
else
{
RenderObject *n;
bool c=false;
for( n = firstChild(); n != 0; n = n->nextSibling() )
{
if (n->isPositioned() || n->overhangingContents())
c=true;
}
if (c)
return;
else
{
m_overhangingContents = false;
if (cb && cb != this)
cb->setOverhangingContents(false);
}
}
}
QRect RenderObject::viewRect() const
{
return containingBlock()->viewRect();
}
bool RenderObject::absolutePosition(int &xPos, int &yPos, bool f)
{
if(parent())
return parent()->absolutePosition(xPos, yPos, f);
else
{
xPos = yPos = 0;
return false;
}
}
void RenderObject::cursorPos(int /*offset*/, int &_x, int &_y, int &height)
{
_x = _y = height = -1;
}
int RenderObject::paddingTop() const
{
int w = 0;
Length padding = m_style->paddingTop();
if (padding.isPercent())
w = containingBlock()->contentWidth();
w = padding.minWidth(w);
if ( isTableCell() && padding.isVariable() )
w = static_cast(this)->table()->cellPadding();
return w;
}
int RenderObject::paddingBottom() const
{
int w = 0;
Length padding = style()->paddingBottom();
if (padding.isPercent())
w = containingBlock()->contentWidth();
w = padding.minWidth(w);
if ( isTableCell() && padding.isVariable() )
w = static_cast(this)->table()->cellPadding();
return w;
}
int RenderObject::paddingLeft() const
{
int w = 0;
Length padding = style()->paddingLeft();
if (padding.isPercent())
w = containingBlock()->contentWidth();
w = padding.minWidth(w);
if ( isTableCell() && padding.isVariable() )
w = static_cast(this)->table()->cellPadding();
return w;
}
int RenderObject::paddingRight() const
{
int w = 0;
Length padding = style()->paddingRight();
if (padding.isPercent())
w = containingBlock()->contentWidth();
w = padding.minWidth(w);
if ( isTableCell() && padding.isVariable() )
w = static_cast(this)->table()->cellPadding();
return w;
}
RenderCanvas* RenderObject::canvas() const
{
RenderObject* o = const_cast( this );
while ( o->parent() ) o = o->parent();
KHTMLAssert( o->isCanvas() );
return static_cast( o );
}
RenderObject *RenderObject::container() const
{
EPosition pos = m_style->position();
RenderObject *o = 0;
if( pos == FIXED ) {
// container() can be called on an object that is not in the
// tree yet. We don't call canvas() since it will assert if it
// can't get back to the canvas. Instead we just walk as high up
// as we can. If we're in the tree, we'll get the root. If we
// aren't we'll get the root of our little subtree (most likely
// we'll just return 0).
o = parent();
while ( o && o->parent() ) o = o->parent();
}
else if ( pos == ABSOLUTE ) {
// Same goes here. We technically just want our containing block, but
// we may not have one if we're part of an uninstalled subtree. We'll
// climb as high as we can though.
o = parent();
while (o && o->style()->position() == STATIC && !o->isRoot() && !o->isCanvas())
o = o->parent();
}
else
o = parent();
return o;
}
#if 0 /// this method is unused
void RenderObject::invalidateLayout()
{
kdDebug() << "RenderObject::invalidateLayout " << renderName() << endl;
setNeedsLayout(true);
if (m_parent && !m_parent->needsLayout())
m_parent->invalidateLayout();
}
#endif
void RenderObject::removeFromObjectLists()
{
if (isFloating()) {
RenderBlock* outermostBlock = containingBlock();
for (RenderBlock* p = outermostBlock;
p && !p->isCanvas() && p->containsFloat(this) && !p->isFloatingOrPositioned();
outermostBlock = p, p = p->containingBlock());
if (outermostBlock)
outermostBlock->markAllDescendantsWithFloatsForLayout(this);
}
if (isPositioned()) {
RenderObject *p;
for (p = parent(); p; p = p->parent()) {
if (p->isRenderBlock())
static_cast(p)->removePositionedObject(this);
}
}
}
RenderArena* RenderObject::renderArena() const
{
DOM::NodeImpl* elt = element();
RenderObject* current = parent();
while (!elt && current) {
elt = current->element();
current = current->parent();
}
if (!elt)
return 0;
return elt->getDocument()->renderArena();
}
void RenderObject::detach(RenderArena* renderArena)
{
// If we're an overflow:hidden object that currently needs layout, we need
// to make sure the view isn't holding on to us.
if (needsLayout() && style()->hidesOverflow()) {
RenderCanvas* r = canvas();
if (r && r->view()->layoutObject() == this)
r->view()->unscheduleRelayout();
}
remove();
m_next = m_previous = 0;
// by default no refcounting
arenaDelete(renderArena, this);
}
void RenderObject::arenaDelete(RenderArena *arena, void *base)
{
#ifndef NDEBUG
void *savedBase = baseOfRenderObjectBeingDeleted;
baseOfRenderObjectBeingDeleted = base;
#endif
delete this;
#ifndef NDEBUG
baseOfRenderObjectBeingDeleted = savedBase;
#endif
// Recover the size left there for us by operator delete and free the memory.
arena->free(*(size_t *)base, base);
}
void RenderObject::arenaDelete(RenderArena *arena)
{
arenaDelete(arena, dynamic_cast(this));
}
FindSelectionResult RenderObject::checkSelectionPoint(int _x, int _y, int _tx, int _ty, DOM::NodeImpl*& node, int & offset )
{
FindSelectionResult result = checkSelectionPointIgnoringContinuations(_x, _y, _tx, _ty, node, offset);
if (isInline())
for (RenderObject *c = continuation(); result == SelectionPointAfter && c; c = c->continuation())
if (c->isInline()) {
int ncx, ncy;
c->absolutePosition(ncx, ncy);
result = c->checkSelectionPointIgnoringContinuations(_x, _y, ncx - c->xPos(), ncy - c->yPos(), node, offset);
}
return result;
}
FindSelectionResult RenderObject::checkSelectionPointIgnoringContinuations(int _x, int _y, int _tx, int _ty, DOM::NodeImpl*& node, int & offset )
{
int lastOffset=0;
int off = offset;
DOM::NodeImpl* nod = node;
DOM::NodeImpl* lastNode = 0;
for (RenderObject *child = firstChild(); child; child=child->nextSibling()) {
FindSelectionResult pos = child->checkSelectionPointIgnoringContinuations(_x, _y, _tx+xPos(), _ty+yPos(), nod, off);
//kdDebug(6030) << this << " child->findSelectionNode returned " << pos << endl;
switch(pos) {
case SelectionPointBeforeInLine:
case SelectionPointAfterInLine:
case SelectionPointInside:
node = nod;
offset = off;
return SelectionPointInside;
case SelectionPointBefore:
//x,y is before this element -> stop here
if ( lastNode) {
node = lastNode;
offset = lastOffset;
// kdDebug(6030) << "ElementImpl::findSelectionNode " << this << " before this child "
// << node << "-> returning offset=" << offset << endl;
return SelectionPointInside;
} else {
// kdDebug(6030) << "ElementImpl::findSelectionNode " << this << " before us -> returning -2" << endl;
return SelectionPointBefore;
}
break;
case SelectionPointAfter:
// kdDebug(6030) << "ElementImpl::findSelectionNode: selection after: " << nod << " offset: " << off << endl;
lastNode = nod;
lastOffset = off;
}
}
node = lastNode;
offset = lastOffset;
return SelectionPointAfter;
}
bool RenderObject::mouseInside() const
{
if (!m_mouseInside && continuation())
return continuation()->mouseInside();
return m_mouseInside;
}
void RenderObject::setHoverAndActive(NodeInfo& info, bool oldinside, bool inside)
{
DOM::NodeImpl* elt = element();
if (elt) {
bool oldactive = elt->active();
if (oldactive != (inside && info.active()))
elt->setActive(inside && info.active());
if ((oldinside != mouseInside() && style()->affectedByHoverRules()) ||
(oldactive != elt->active() && style()->affectedByActiveRules()))
elt->setChanged();
}
}
bool RenderObject::nodeAtPoint(NodeInfo& info, int _x, int _y, int _tx, int _ty, bool inside)
{
int tx = _tx + xPos();
int ty = _ty + yPos();
QRect boundsRect(tx, ty, width(), height());
inside |= (style()->visibility() != HIDDEN && boundsRect.contains(_x, _y)) || isBody() || isRoot();
bool inOverflowRect = inside;
if (!inOverflowRect) {
QRect overflowRect(tx, ty, overflowWidth(false), overflowHeight(false));
inOverflowRect = overflowRect.contains(_x, _y);
}
// ### table should have its own, more performant method
if ((!isRenderBlock() ||
!static_cast(this)->isPointInScrollbar(_x, _y, _tx, _ty)) &&
(overhangingContents() || inOverflowRect || isInline() || isCanvas() ||
isTableRow() || isTableSection() || inside || mouseInside() ||
(childrenInline() && firstChild() && firstChild()->isCompact()))) {
int stx = _tx + xPos();
int sty = _ty + yPos();
if (style()->hidesOverflow() && layer())
layer()->subtractScrollOffset(stx, sty);
for (RenderObject* child = lastChild(); child; child = child->previousSibling())
if (!child->layer() && !child->isFloating() &&
child->nodeAtPoint(info, _x, _y, stx, sty))
inside = true;
}
if (inside) {
if (info.innerNode() && info.innerNode()->renderer() &&
!info.innerNode()->renderer()->isInline() && element() && isInline()) {
// Within the same layer, inlines are ALWAYS fully above blocks. Change inner node.
info.setInnerNode(element());
// Clear everything else.
info.setInnerNonSharedNode(0);
info.setURLElement(0);
}
if (!info.innerNode() && element())
info.setInnerNode(element());
if(!info.innerNonSharedNode() && element())
info.setInnerNonSharedNode(element());
if (!info.URLElement()) {
RenderObject* p = (!isInline() && continuation()) ? continuation() : this;
while (p) {
if (p->element() && p->element()->hasAnchor()) {
info.setURLElement(p->element());
break;
}
if (!isFloatingOrPositioned()) break;
p = p->parent();
}
}
}
if (!info.readonly()) {
// lets see if we need a new style
bool oldinside = mouseInside();
setMouseInside(inside);
setHoverAndActive(info, oldinside, inside);
if (!isInline() && continuation())
continuation()->setHoverAndActive(info, oldinside, inside);
}
return inside;
}
short RenderObject::verticalPositionHint( bool firstLine ) const
{
short vpos = m_verticalPosition;
if ( m_verticalPosition == PositionUndefined || firstLine ) {
vpos = getVerticalPosition( firstLine );
if ( !firstLine )
const_cast(this)->m_verticalPosition = vpos;
}
return vpos;
}
short RenderObject::getVerticalPosition( bool firstLine ) const
{
if (!isInline())
return 0;
// This method determines the vertical position for inline elements.
int vpos = 0;
EVerticalAlign va = style()->verticalAlign();
if ( va == TOP ) {
vpos = PositionTop;
} else if ( va == BOTTOM ) {
vpos = PositionBottom;
} else if ( va == LENGTH ) {
vpos = -style()->verticalAlignLength().width( lineHeight( firstLine ) );
} else {
vpos = parent()->verticalPositionHint( firstLine );
// don't allow elements nested inside text-top to have a different valignment.
if ( va == BASELINE )
return vpos;
// if ( vpos == PositionTop )
// vpos = 0;
const QFont &f = parent()->font( firstLine );
int fontsize = f.pixelSize();
if ( va == SUB )
vpos += fontsize/5 + 1;
else if ( va == SUPER )
vpos -= fontsize/3 + 1;
else if ( va == TEXT_TOP ) {
// qDebug( "got TEXT_TOP vertical pos hint" );
// qDebug( "parent:" );
// qDebug( "CSSLH: %d, CSS_FS: %d, basepos: %d", fontheight, fontsize, parent()->baselinePosition( firstLine ) );
// qDebug( "this:" );
// qDebug( "CSSLH: %d, CSS_FS: %d, basepos: %d", lineHeight( firstLine ), style()->font().pixelSize(), baselinePosition( firstLine ) );
vpos += ( baselinePosition( firstLine ) - parent()->baselinePosition( firstLine ) );
} else if ( va == MIDDLE ) {
#if APPLE_CHANGES
vpos += - (int)(QFontMetrics(f).xHeight()/2) - lineHeight( firstLine )/2 + baselinePosition( firstLine );
#else
QRect b = QFontMetrics(f).boundingRect('x');
vpos += -b.height()/2 - lineHeight( firstLine )/2 + baselinePosition( firstLine );
#endif
} else if ( va == TEXT_BOTTOM ) {
vpos += QFontMetrics(f).descent();
if ( !isReplaced() )
vpos -= fontMetrics(firstLine).descent();
} else if ( va == BASELINE_MIDDLE )
vpos += - lineHeight( firstLine )/2 + baselinePosition( firstLine );
}
return vpos;
}
short RenderObject::lineHeight( bool firstLine ) const
{
Length lh = style(firstLine)->lineHeight();
// its "unset", choose nice default
if ( lh.value < 0 )
return style(firstLine)->fontMetrics().lineSpacing();
if ( lh.isPercent() )
return lh.minWidth( style(firstLine)->font().pixelSize() );
// its fixed
return lh.value;
}
short RenderObject::baselinePosition( bool firstLine ) const
{
const QFontMetrics &fm = fontMetrics( firstLine );
return fm.ascent() + ( lineHeight( firstLine ) - fm.height() ) / 2;
}
void RenderObject::invalidateVerticalPositions()
{
m_verticalPosition = PositionUndefined;
RenderObject *child = firstChild();
while( child ) {
child->invalidateVerticalPositions();
child = child->nextSibling();
}
}
void RenderObject::recalcMinMaxWidths()
{
KHTMLAssert( m_recalcMinMax );
#ifdef DEBUG_LAYOUT
kdDebug( 6040 ) << renderName() << " recalcMinMaxWidths() this=" << this <m_recalcMinMax ) || !child->m_minMaxKnown ) {
cmin = child->minWidth();
cmax = child->maxWidth();
test = true;
}
if ( child->m_recalcMinMax )
child->recalcMinMaxWidths();
if ( !child->m_minMaxKnown )
child->calcMinMaxWidth();
if ( m_minMaxKnown && test && (cmin != child->minWidth() || cmax != child->maxWidth()) )
m_minMaxKnown = false;
child = child->nextSibling();
}
// we need to recalculate, if the contains inline children, as the change could have
// happened somewhere deep inside the child tree. Also do this for blocks or tables that
// are inline (i.e., inline-block and inline-table).
if ((!isInline() || isInlineBlockOrInlineTable()) && childrenInline())
m_minMaxKnown = false;
if ( !m_minMaxKnown )
calcMinMaxWidth();
m_recalcMinMax = false;
}
void RenderObject::scheduleRelayout(RenderObject* clippedObj)
{
if (!isCanvas()) return;
KHTMLView *view = static_cast(this)->view();
if ( view )
view->scheduleRelayout(clippedObj);
}
void RenderObject::removeLeftoverAnonymousBoxes()
{
}
InlineBox* RenderObject::createInlineBox(bool makePlaceHolderBox)
{
return new (renderArena()) InlineBox(this);
}
void RenderObject::getTextDecorationColors(int decorations, QColor& underline, QColor& overline,
QColor& linethrough, bool quirksMode)
{
RenderObject* curr = this;
do {
int currDecs = curr->style()->textDecoration();
if (currDecs) {
if (currDecs & UNDERLINE) {
decorations &= ~UNDERLINE;
underline = curr->style()->color();
}
if (currDecs & OVERLINE) {
decorations &= ~OVERLINE;
overline = curr->style()->color();
}
if (currDecs & LINE_THROUGH) {
decorations &= ~LINE_THROUGH;
linethrough = curr->style()->color();
}
}
curr = curr->parent();
if (curr && curr->isRenderBlock() && curr->continuation())
curr = curr->continuation();
} while (curr && decorations && (!quirksMode || !curr->element() ||
(curr->element()->id() != ID_A && curr->element()->id() != ID_FONT)));
// If we bailed out, use the element we bailed out at (typically a or element).
if (decorations && curr) {
if (decorations & UNDERLINE)
underline = curr->style()->color();
if (decorations & OVERLINE)
overline = curr->style()->color();
if (decorations & LINE_THROUGH)
linethrough = curr->style()->color();
}
}
QChar RenderObject::backslashAsCurrencySymbol() const
{
#if !APPLE_CHANGES
return '\\';
#else
NodeImpl *node = element();
if (!node)
return '\\';
DocumentImpl *document = node->getDocument();
if (!document)
return '\\';
Decoder *decoder = document->decoder();
if (!decoder)
return '\\';
const QTextCodec *codec = decoder->codec();
if (!codec)
return '\\';
return codec->backslashAsCurrencySymbol();
#endif
}
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