#include "rendering/render_canvas.h"
#include "render_layer.h"
#include "xml/dom_docimpl.h"
#include "khtmlview.h"
#include <kdebug.h>
#if APPLE_CHANGES
#include "khtml_part.h"
#endif
using namespace khtml;
RenderCanvas::RenderCanvas(DOM::NodeImpl* node, KHTMLView *view)
: RenderBlock(node)
{
setIsAnonymous(false);
setInline(false);
m_view = view;
m_minWidth = 0;
m_height = 0;
m_width = m_minWidth;
m_maxWidth = m_minWidth;
m_rootWidth = m_rootHeight = 0;
m_viewportWidth = m_viewportHeight = 0;
setPositioned(true);
m_printingMode = false;
m_printImages = true;
m_maximalOutlineSize = 0;
m_selectionStart = 0;
m_selectionEnd = 0;
m_selectionStartPos = -1;
m_selectionEndPos = -1;
m_layer = new (node->getDocument()->renderArena()) RenderLayer(this);
}
RenderCanvas::~RenderCanvas()
{
}
void RenderCanvas::calcHeight()
{
if (!m_printingMode && m_view)
{
m_height = m_view->visibleHeight();
}
else if (!m_view)
{
m_height = m_rootHeight;
}
}
void RenderCanvas::calcWidth()
{
if(m_printingMode || !m_view)
{
m_width = m_rootWidth;
return;
}
m_width = m_view ?
m_view->frameWidth() + paddingLeft() + paddingRight() + borderLeft() + borderRight()
: m_minWidth;
if (style()->marginLeft().type==Fixed)
m_marginLeft = style()->marginLeft().value;
else
m_marginLeft = 0;
if (style()->marginRight().type==Fixed)
m_marginRight = style()->marginRight().value;
else
m_marginRight = 0;
}
void RenderCanvas::calcMinMaxWidth()
{
KHTMLAssert( !minMaxKnown() );
RenderBlock::calcMinMaxWidth();
m_maxWidth = m_minWidth;
setMinMaxKnown();
}
void RenderCanvas::layout()
{
KHTMLAssert(!view()->inLayout());
if (m_printingMode)
m_minWidth = m_width;
setChildNeedsLayout(true);
setMinMaxKnown(false);
for (RenderObject *c = firstChild(); c; c = c->nextSibling())
c->setChildNeedsLayout(true);
#ifdef SPEED_DEBUG
QTime qt;
qt.start();
#endif
if ( recalcMinMax() )
recalcMinMaxWidths();
#ifdef SPEED_DEBUG
kdDebug() << "RenderCanvas::calcMinMax time used=" << qt.elapsed() << endl;
qt.start();
#endif
#ifdef SPEED_DEBUG
kdDebug() << "RenderCanvas::layout time used=" << qt.elapsed() << endl;
qt.start();
#endif
if (!m_printingMode) {
m_viewportWidth = m_width = m_view->visibleWidth();
m_viewportHeight = m_height = m_view->visibleHeight();
}
else {
m_width = m_rootWidth;
m_height = m_rootHeight;
}
RenderBlock::layout();
int docw = docWidth();
int doch = docHeight();
if (!m_printingMode) {
setWidth( m_viewportWidth = m_view->visibleWidth() );
setHeight( m_viewportHeight = m_view->visibleHeight() );
}
layoutPositionedObjects( true );
#ifdef SPEED_DEBUG
kdDebug() << "RenderCanvas::end time used=" << qt.elapsed() << endl;
#endif
layer()->setHeight(kMax(doch, m_height));
layer()->setWidth(kMax((short)docw, m_width));
setNeedsLayout(false);
}
bool RenderCanvas::absolutePosition(int &xPos, int &yPos, bool f)
{
if ( f && m_view) {
xPos = m_view->contentsX();
yPos = m_view->contentsY();
}
else {
xPos = yPos = 0;
}
return true;
}
void RenderCanvas::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 RenderCanvas::paintObject(QPainter *p, int _x, int _y,
int _w, int _h, int _tx, int _ty, PaintAction paintAction)
{
#ifdef DEBUG_LAYOUT
kdDebug( 6040 ) << renderName() << "(RenderCanvas) " << this << " ::paintObject() w/h = (" << width() << "/" << height() << ")" << endl;
#endif
if (paintAction == PaintActionElementBackground) {
paintBoxDecorations(p, _x, _y, _w, _h, _tx, _ty);
return;
}
RenderObject *child = firstChild();
while(child != 0) {
if(!child->layer() && !child->isFloating()) {
child->paint(p, _x, _y, _w, _h, _tx, _ty, paintAction);
}
child = child->nextSibling();
}
if (m_view)
{
_tx += m_view->contentsX();
_ty += m_view->contentsY();
}
if (paintAction == PaintActionFloat)
paintFloats(p, _x, _y, _w, _h, _tx, _ty);
#ifdef BOX_DEBUG
outlineBox(p, _tx, _ty);
#endif
}
void RenderCanvas::paintBoxDecorations(QPainter *p,int _x, int _y,
int _w, int _h, int _tx, int _ty)
{
DOM::ElementImpl* elt = element()->getDocument()->ownerElement();
if (view() && elt) {
RenderLayer* layer = elt->renderer()->enclosingLayer();
if (layer->isTransparent() || layer->transparentAncestor())
view()->useSlowRepaints();
}
if ((firstChild() && firstChild()->style()->visibility() == VISIBLE) || !view())
return;
if (elt)
view()->useSlowRepaints(); else
p->fillRect(_x,_y,_w,_h, view()->palette().active().color(QColorGroup::Base));
}
void RenderCanvas::repaintViewRectangle(const QRect& ur, bool immediate)
{
if (m_printingMode || ur.width() == 0 || ur.height() == 0) return;
QRect vr = viewRect();
if (m_view && ur.intersects(vr)) {
QRect r = ur.intersect(vr);
DOM::ElementImpl* elt = element()->getDocument()->ownerElement();
if (!elt)
m_view->repaintRectangle(r, immediate);
else {
r.setX(r.x() - m_view->contentsX());
r.setY(r.y() - m_view->contentsY());
RenderObject* obj = elt->renderer();
int frameOffset = (m_view->frameStyle() != QFrame::NoFrame) ? 2 : 0;
r.setX(r.x() + obj->borderLeft()+obj->paddingLeft() + frameOffset);
r.setY(r.y() + obj->borderTop()+obj->paddingTop() + frameOffset);
obj->repaintRectangle(r, immediate);
}
}
}
QRect RenderCanvas::getAbsoluteRepaintRect()
{
QRect result;
if (m_view && !m_printingMode)
result = QRect(m_view->contentsX(), m_view->contentsY(),
m_view->visibleWidth(), m_view->visibleHeight());
return result;
}
void RenderCanvas::computeAbsoluteRepaintRect(QRect& r, bool f)
{
if (m_printingMode) return;
if (f && m_view) {
r.setX(r.x() + m_view->contentsX());
r.setY(r.y() + m_view->contentsY());
}
}
static QRect enclosingPositionedRect (RenderObject *n)
{
RenderObject *enclosingParent = n->containingBlock();
QRect rect(0,0,0,0);
if (enclosingParent) {
int ox, oy;
enclosingParent->absolutePosition(ox, oy);
rect.setX(ox);
rect.setY(oy);
rect.setWidth (enclosingParent->width());
rect.setHeight (enclosingParent->height());
}
return rect;
}
void RenderCanvas::absoluteRects(QValueList<QRect>& rects, int _tx, int _ty)
{
rects.append(QRect(_tx, _ty, m_layer->width(), m_layer->height()));
}
QRect RenderCanvas::selectionRect() const
{
RenderObject *r = m_selectionStart;
if (!r)
return QRect();
QRect selectionRect = enclosingPositionedRect(r);
while (r && r != m_selectionEnd)
{
RenderObject* n;
if ( !(n = r->firstChild()) ){
if ( !(n = r->nextSibling()) )
{
n = r->parent();
while (n && !n->nextSibling())
n = n->parent();
if (n)
n = n->nextSibling();
}
}
r = n;
if (r) {
selectionRect = selectionRect.unite(enclosingPositionedRect(r));
}
}
return selectionRect;
}
void RenderCanvas::setSelection(RenderObject *s, int sp, RenderObject *e, int ep)
{
if ( !s || !e )
{
kdWarning(6040) << "RenderCanvas::setSelection() called with start=" << s << " end=" << e << endl;
return;
}
#if APPLE_CHANGES
if (m_selectionStart == s && m_selectionStartPos == sp &&
m_selectionEnd == e && m_selectionEndPos == ep){
return;
}
RenderObject *oldStart = m_selectionStart;
int oldStartPos = m_selectionStartPos;
RenderObject *oldEnd = m_selectionEnd;
int oldEndPos = m_selectionEndPos;
QPtrList<RenderObject> oldSelectedInside;
QPtrList<RenderObject> newSelectedInside;
RenderObject *os = oldStart;
while (os && os != oldEnd)
{
RenderObject* no;
if ( !(no = os->firstChild()) ){
if ( !(no = os->nextSibling()) )
{
no = os->parent();
while (no && !no->nextSibling())
no = no->parent();
if (no)
no = no->nextSibling();
}
}
if (os->selectionState() == SelectionInside && !oldSelectedInside.containsRef(os))
oldSelectedInside.append(os);
os = no;
}
clearSelection(false);
#else
clearSelection();
#endif
while (s->firstChild())
s = s->firstChild();
while (e->lastChild())
e = e->lastChild();
if (m_selectionStart)
m_selectionStart->setIsSelectionBorder(false);
m_selectionStart = s;
if (m_selectionStart)
m_selectionStart->setIsSelectionBorder(true);
m_selectionStartPos = sp;
if (m_selectionEnd)
m_selectionEnd->setIsSelectionBorder(false);
m_selectionEnd = e;
if (m_selectionEnd)
m_selectionEnd->setIsSelectionBorder(true);
m_selectionEndPos = ep;
RenderObject* o = s;
while (o && o!=e)
{
o->setSelectionState(SelectionInside);
RenderObject* no;
if ( !(no = o->firstChild()) )
if ( !(no = o->nextSibling()) )
{
no = o->parent();
while (no && !no->nextSibling())
no = no->parent();
if (no)
no = no->nextSibling();
}
#if APPLE_CHANGES
if (o->selectionState() == SelectionInside && !newSelectedInside.containsRef(o))
newSelectedInside.append(o);
#endif
o=no;
}
s->setSelectionState(SelectionStart);
e->setSelectionState(SelectionEnd);
if(s == e) s->setSelectionState(SelectionBoth);
#if APPLE_CHANGES
if (!m_view)
return;
newSelectedInside.remove (s);
newSelectedInside.remove (e);
QRect updateRect;
QPtrListIterator<RenderObject> oldIterator(oldSelectedInside);
bool firstRect = true;
for (; oldIterator.current(); ++oldIterator){
if (!newSelectedInside.containsRef(oldIterator.current())){
if (firstRect){
updateRect = enclosingPositionedRect(oldIterator.current());
firstRect = false;
}
else
updateRect = updateRect.unite(enclosingPositionedRect(oldIterator.current()));
}
}
if (!firstRect){
m_view->updateContents( updateRect );
}
QPtrListIterator<RenderObject> newIterator(newSelectedInside);
firstRect = true;
for (; newIterator.current(); ++newIterator){
if (!oldSelectedInside.containsRef(newIterator.current())){
if (firstRect){
updateRect = enclosingPositionedRect(newIterator.current());
firstRect = false;
}
else
updateRect = updateRect.unite(enclosingPositionedRect(newIterator.current()));
}
}
if (!firstRect) {
m_view->updateContents( updateRect );
}
if (oldStart != m_selectionStart ||
(oldStart == oldEnd && (oldStartPos != m_selectionStartPos || oldEndPos != m_selectionEndPos)) ||
(oldStart == m_selectionStart && oldStartPos != m_selectionStartPos)){
m_view->updateContents( enclosingPositionedRect(m_selectionStart) );
}
if (oldStart && oldStart != m_selectionStart){
m_view->updateContents( enclosingPositionedRect(oldStart) );
}
if (oldStart != oldEnd &&
(oldEnd != m_selectionEnd ||
(oldEnd == m_selectionEnd && oldEndPos != m_selectionEndPos))){
m_view->updateContents( enclosingPositionedRect(m_selectionEnd) );
}
if (oldEnd && oldEnd != m_selectionEnd){
m_view->updateContents( enclosingPositionedRect(oldEnd) );
}
#else
repaint();
#endif
}
#if APPLE_CHANGES
void RenderCanvas::clearSelection(bool doRepaint)
#else
void RenderCanvas::clearSelection()
#endif
{
RenderObject* o = m_selectionStart;
while (o && o!=m_selectionEnd)
{
if (o->selectionState()!=SelectionNone)
#if APPLE_CHANGES
if (doRepaint)
#endif
o->repaint();
o->setSelectionState(SelectionNone);
RenderObject* no;
if ( !(no = o->firstChild()) )
if ( !(no = o->nextSibling()) )
{
no = o->parent();
while (no && !no->nextSibling())
no = no->parent();
if (no)
no = no->nextSibling();
}
o=no;
}
if (m_selectionEnd)
{
m_selectionEnd->setSelectionState(SelectionNone);
#if APPLE_CHANGES
if (doRepaint)
#endif
m_selectionEnd->repaint();
}
if (m_selectionStart)
m_selectionStart->setIsSelectionBorder(false);
m_selectionStart = 0;
m_selectionStartPos = -1;
if (m_selectionEnd)
m_selectionEnd->setIsSelectionBorder(false);
m_selectionEnd = 0;
m_selectionEndPos = -1;
}
void RenderCanvas::selectionStartEnd(int& spos, int& epos)
{
spos = m_selectionStartPos;
epos = m_selectionEndPos;
}
QRect RenderCanvas::viewRect() const
{
if (m_printingMode)
return QRect(0,0, m_width, m_height);
else if (m_view)
return QRect(m_view->contentsX(),
m_view->contentsY(),
m_view->visibleWidth(),
m_view->visibleHeight());
else return QRect(0,0,m_rootWidth,m_rootHeight);
}
int RenderCanvas::docHeight() const
{
int h;
if (m_printingMode || !m_view)
h = m_height;
else
h = m_view->visibleHeight();
int lowestPos = lowestPosition();
if( lowestPos > h )
h = lowestPos;
int dh = 0;
for (RenderObject *c = firstChild(); c; c = c->nextSibling()) {
dh += c->height() + c->marginTop() + c->marginBottom();
}
if( dh > h )
h = dh;
return h;
}
int RenderCanvas::docWidth() const
{
int w;
if (m_printingMode || !m_view)
w = m_width;
else
w = m_view->visibleWidth();
int rightmostPos = rightmostPosition();
if( rightmostPos > w )
w = rightmostPos;
for (RenderObject *c = firstChild(); c; c = c->nextSibling()) {
int dw = c->width() + c->marginLeft() + c->marginRight();
if( dw > w )
w = dw;
}
return w;
}
#if APPLE_CHANGES
void RenderCanvas::setBestTruncatedAt(int y, RenderObject *forRenderer, bool forcedBreak)
{
if (m_forcedPageBreak) return;
if (forcedBreak) {
m_forcedPageBreak = true;
m_bestTruncatedAt = y;
return;
}
int width = forRenderer->width();
if (width > m_truncatorWidth) {
m_truncatorWidth = width;
m_bestTruncatedAt = y;
}
}
#endif