AffineTransform SVGSVGElement::getScreenCTM() const
{
// FIXME: This assumes that any <svg> element not immediately descending from another SVGElement
// has *no* svg ancestors
document()->updateLayoutIgnorePendingStylesheets();
float rootX = 0.0f;
float rootY = 0.0f;
if (RenderObject* renderer = this->renderer()) {
renderer = renderer->parent();
if (renderer && !(renderer->element() && renderer->element()->isSVGElement())) {
int tx = 0;
int ty = 0;
renderer->absolutePosition(tx, ty, true);
rootX += tx;
rootY += ty;
} else {
rootX += x().value();
rootY += y().value();
}
}
AffineTransform mat = SVGStyledLocatableElement::getScreenCTM();
mat.translate(rootX, rootY);
if (attributes()->getNamedItem(SVGNames::viewBoxAttr)) {
AffineTransform viewBox = viewBoxToViewTransform(width().value(), height().value());
mat = viewBox * mat;
}
return mat;
}
TransformationMatrix SVGSVGElement::getScreenCTM() const
{
document()->updateLayoutIgnorePendingStylesheets();
FloatPoint rootLocation;
if (RenderObject* renderer = this->renderer()) {
if (isOutermostSVG()) {
// FIXME: This doesn't work correctly with CSS transforms.
FloatPoint point;
if (renderer->parent())
point = renderer->localToAbsolute(point, true);
rootLocation.move(point.x(), point.y());
} else
rootLocation.move(x().value(this), y().value(this));
}
TransformationMatrix mat = SVGStyledLocatableElement::getScreenCTM();
mat.translate(rootLocation.x(), rootLocation.y());
if (attributes()->getAttributeItem(SVGNames::viewBoxAttr)) {
TransformationMatrix viewBox = viewBoxToViewTransform(width().value(this), height().value(this));
mat = viewBox * mat;
}
return mat;
}
AffineTransform SVGSVGElement::localCoordinateSpaceTransform(SVGLocatable::CTMScope mode) const
{
AffineTransform viewBoxTransform;
if (attributes()->getAttributeItem(SVGNames::viewBoxAttr))
viewBoxTransform = viewBoxToViewTransform(width().value(this), height().value(this));
AffineTransform transform;
if (!isOutermostSVG())
transform.translate(x().value(this), y().value(this));
else if (mode == SVGLocatable::ScreenScope) {
if (RenderObject* renderer = this->renderer()) {
// Translate in our CSS parent coordinate space
// FIXME: This doesn't work correctly with CSS transforms.
FloatPoint location = renderer->localToAbsolute(FloatPoint(), false, true);
// Be careful here! localToAbsolute() includes the x/y offset coming from the viewBoxToViewTransform(), because
// RenderSVGRoot::localToBorderBoxTransform() (called through mapLocalToContainer(), called from localToAbsolute())
// also takes the viewBoxToViewTransform() into account, so we have to subtract it here (original cause of bug #27183)
transform.translate(location.x() - viewBoxTransform.e(), location.y() - viewBoxTransform.f());
// Respect scroll offset.
if (FrameView* view = document()->view()) {
IntSize scrollOffset = view->scrollOffset();
transform.translate(-scrollOffset.width(), -scrollOffset.height());
}
}
}
return transform.multLeft(viewBoxTransform);
}
KCanvasMarker *SVGMarkerElement::canvasResource()
{
if(!m_marker)
m_marker = static_cast<KCanvasMarker *>(renderingDevice()->createResource(RS_MARKER));
m_marker->setMarker(renderer());
// Spec: If the attribute is not specified, the effect is as if a
// value of "0" were specified.
if(!m_orientType)
{
SVGAngle *angle = SVGSVGElement::createSVGAngle();
angle->setValueAsString(String("0").impl());
setOrientToAngle(angle);
}
if(orientType()->baseVal() == SVG_MARKER_ORIENT_ANGLE)
m_marker->setAngle(orientAngle()->baseVal()->value());
else
m_marker->setAutoAngle();
m_marker->setRef(refX()->baseVal()->value(), refY()->baseVal()->value());
m_marker->setUseStrokeWidth(markerUnits()->baseVal() == SVG_MARKERUNITS_STROKEWIDTH);
double w = markerWidth()->baseVal()->value();
double h = markerHeight()->baseVal()->value();
RefPtr<SVGMatrix> viewBox = viewBoxToViewTransform(w, h);
m_marker->setScale(viewBox->matrix().m11(), viewBox->matrix().m22());
return m_marker;
}
FloatRect SVGSVGElement::viewport() const
{
FloatRect viewRectangle;
if (!isOutermostSVG())
viewRectangle.setLocation(FloatPoint(x().value(this), y().value(this)));
viewRectangle.setSize(FloatSize(width().value(this), height().value(this)));
return viewBoxToViewTransform(viewRectangle.width(), viewRectangle.height()).mapRect(viewRectangle);
}
FloatRect SVGSVGElement::viewport() const
{
// FIXME: This method doesn't follow the spec and is basically untested. Parent documents are not considered here.
SVGLengthContext lengthContext(this);
FloatRect viewRectangle;
if (!isOutermostSVG())
viewRectangle.setLocation(FloatPoint(x().value(lengthContext), y().value(lengthContext)));
viewRectangle.setSize(FloatSize(width().value(lengthContext), height().value(lengthContext)));
return viewBoxToViewTransform(viewRectangle.width(), viewRectangle.height()).mapRect(viewRectangle);
}
AffineTransform SVGSVGElement::localCoordinateSpaceTransform(
SVGElement::CTMScope mode) const {
AffineTransform viewBoxTransform;
if (!hasEmptyViewBox()) {
FloatSize size = currentViewportSize();
viewBoxTransform = viewBoxToViewTransform(size.width(), size.height());
}
AffineTransform transform;
if (!isOutermostSVGSVGElement()) {
SVGLengthContext lengthContext(this);
transform.translate(m_x->currentValue()->value(lengthContext),
m_y->currentValue()->value(lengthContext));
} else if (mode == SVGElement::ScreenScope) {
if (LayoutObject* layoutObject = this->layoutObject()) {
FloatPoint location;
float zoomFactor = 1;
// At the SVG/HTML boundary (aka LayoutSVGRoot), we apply the
// localToBorderBoxTransform to map an element from SVG viewport
// coordinates to CSS box coordinates. LayoutSVGRoot's localToAbsolute
// method expects CSS box coordinates. We also need to adjust for the
// zoom level factored into CSS coordinates (bug #96361).
if (layoutObject->isSVGRoot()) {
location = toLayoutSVGRoot(layoutObject)
->localToBorderBoxTransform()
.mapPoint(location);
zoomFactor = 1 / layoutObject->style()->effectiveZoom();
}
// Translate in our CSS parent coordinate space
// FIXME: This doesn't work correctly with CSS transforms.
location = layoutObject->localToAbsolute(location, UseTransforms);
location.scale(zoomFactor, zoomFactor);
// Be careful here! localToBorderBoxTransform() included the x/y offset
// coming from the viewBoxToViewTransform(), so we have to subtract it
// here (original cause of bug #27183)
transform.translate(location.x() - viewBoxTransform.e(),
location.y() - viewBoxTransform.f());
// Respect scroll offset.
if (FrameView* view = document().view()) {
LayoutSize scrollOffset(view->getScrollOffset());
scrollOffset.scale(zoomFactor);
transform.translate(-scrollOffset.width(), -scrollOffset.height());
}
}
}
return transform.multiply(viewBoxTransform);
}
TransformationMatrix SVGSVGElement::getCTM() const
{
TransformationMatrix mat;
if (!isOutermostSVG())
mat.translate(x().value(this), y().value(this));
if (attributes()->getAttributeItem(SVGNames::viewBoxAttr)) {
TransformationMatrix viewBox = viewBoxToViewTransform(width().value(this), height().value(this));
mat = viewBox * mat;
}
return mat;
}
SVGMatrix *SVGPatternElement::getCTM() const
{
SVGMatrix *mat = SVGSVGElement::createSVGMatrix();
if (mat)
{
RefPtr<SVGMatrix> viewBox = viewBoxToViewTransform(width()->baseVal()->value(),
height()->baseVal()->value());
mat->multiply(viewBox.get());
}
return mat;
}
AffineTransform SVGSVGElement::getCTM() const
{
AffineTransform mat;
if (renderer() && renderer()->parent() &&
!renderer()->parent()->isSVGContainer())
mat.translate(x().value(), y().value());
if (attributes()->getNamedItem(SVGNames::viewBoxAttr)) {
AffineTransform viewBox = viewBoxToViewTransform(width().value(), height().value());
mat = viewBox * mat;
}
return mat;
}
FloatRect SVGSVGElement::viewport() const
{
double _x = 0.0;
double _y = 0.0;
if (!isOutermostSVG()) {
_x = x().value(this);
_y = y().value(this);
}
float w = width().value(this);
float h = height().value(this);
AffineTransform viewBox = viewBoxToViewTransform(w, h);
double wDouble = w;
double hDouble = h;
viewBox.map(_x, _y, _x, _y);
viewBox.map(w, h, wDouble, hDouble);
return FloatRect::narrowPrecision(_x, _y, wDouble, hDouble);
}
AffineTransform SVGSVGElement::localCoordinateSpaceTransform(SVGLocatable::CTMScope mode) const
{
AffineTransform viewBoxTransform;
if (!hasEmptyViewBox()) {
FloatSize size = currentViewportSize();
viewBoxTransform = viewBoxToViewTransform(size.width(), size.height());
}
AffineTransform transform;
if (!isOutermostSVGSVGElement()) {
SVGLengthContext lengthContext(this);
transform.translate(x().value(lengthContext), y().value(lengthContext));
} else if (mode == SVGLocatable::ScreenScope) {
if (auto* renderer = this->renderer()) {
FloatPoint location;
float zoomFactor = 1;
// At the SVG/HTML boundary (aka RenderSVGRoot), we apply the localToBorderBoxTransform
// to map an element from SVG viewport coordinates to CSS box coordinates.
// RenderSVGRoot's localToAbsolute method expects CSS box coordinates.
// We also need to adjust for the zoom level factored into CSS coordinates (bug #96361).
if (is<RenderSVGRoot>(*renderer)) {
location = downcast<RenderSVGRoot>(*renderer).localToBorderBoxTransform().mapPoint(location);
zoomFactor = 1 / renderer->style().effectiveZoom();
}
// Translate in our CSS parent coordinate space
// FIXME: This doesn't work correctly with CSS transforms.
location = renderer->localToAbsolute(location, UseTransforms);
location.scale(zoomFactor);
// Be careful here! localToBorderBoxTransform() included the x/y offset coming from the viewBoxToViewTransform(),
// so we have to subtract it here (original cause of bug #27183)
transform.translate(location.x() - viewBoxTransform.e(), location.y() - viewBoxTransform.f());
// Respect scroll offset.
if (FrameView* view = document().view()) {
LayoutPoint scrollPosition = view->scrollPosition();
scrollPosition.scale(zoomFactor);
transform.translate(-scrollPosition.x(), -scrollPosition.y());
}
}
}
return transform.multiply(viewBoxTransform);
}
FloatRect SVGSVGElement::viewport() const
{
double _x = 0.0;
double _y = 0.0;
if (renderer() && renderer()->parent() &&
!renderer()->parent()->isSVGContainer()) {
_x = x().value();
_y = y().value();
}
float w = width().value();
float h = height().value();
AffineTransform viewBox = viewBoxToViewTransform(w, h);
double wDouble = w;
double hDouble = h;
viewBox.map(_x, _y, &_x, &_y);
viewBox.map(w, h, &wDouble, &hDouble);
return FloatRect::narrowPrecision(_x, _y, wDouble, hDouble);
}
AffineTransform SVGSVGElement::localCoordinateSpaceTransform(SVGLocatable::CTMScope mode) const
{
AffineTransform viewBoxTransform;
if (hasAttribute(SVGNames::viewBoxAttr)) {
FloatSize size = currentViewportSize();
viewBoxTransform = viewBoxToViewTransform(size.width(), size.height());
}
AffineTransform transform;
if (!isOutermostSVGSVGElement()) {
SVGLengthContext lengthContext(this);
transform.translate(x().value(lengthContext), y().value(lengthContext));
} else if (mode == SVGLocatable::ScreenScope) {
if (RenderObject* renderer = this->renderer()) {
FloatPoint location;
// At the SVG/HTML boundary (aka RenderSVGRoot), we apply the localToBorderBoxTransform
// to map an element from SVG viewport coordinates to CSS box coordinates.
// RenderSVGRoot's localToAbsolute method expects CSS box coordinates.
if (renderer->isSVGRoot())
location = toRenderSVGRoot(renderer)->localToBorderBoxTransform().mapPoint(location);
// Translate in our CSS parent coordinate space
// FIXME: This doesn't work correctly with CSS transforms.
location = renderer->localToAbsolute(location, false, true);
// Be careful here! localToBorderBoxTransform() included the x/y offset coming from the viewBoxToViewTransform(),
// so we have to subtract it here (original cause of bug #27183)
transform.translate(location.x() - viewBoxTransform.e(), location.y() - viewBoxTransform.f());
// Respect scroll offset.
if (FrameView* view = document()->view()) {
LayoutSize scrollOffset = view->scrollOffset();
transform.translate(-scrollOffset.width(), -scrollOffset.height());
}
}
}
return transform.multiply(viewBoxTransform);
}