void Graph::drawMarkers(Drawable drawable, int under)
{
for (ChainLink* link = Chain_LastLink(markers_.displayList); link;
link = Chain_PrevLink(link)) {
Marker* markerPtr = (Marker*)Chain_GetValue(link);
MarkerOptions* mops = (MarkerOptions*)markerPtr->ops();
if ((mops->drawUnder != under) || markerPtr->clipped_ || mops->hide)
continue;
if (isElementHidden(markerPtr))
continue;
markerPtr->draw(drawable);
}
}
void Graph::mapMarkers()
{
for (ChainLink* link = Chain_FirstLink(markers_.displayList); link;
link = Chain_NextLink(link)) {
Marker* markerPtr = (Marker*)Chain_GetValue(link);
MarkerOptions* mops = (MarkerOptions*)markerPtr->ops();
if (mops->hide)
continue;
if ((flags & MAP_MARKERS) || (markerPtr->flags & MAP_ITEM)) {
markerPtr->map();
markerPtr->flags &= ~MAP_ITEM;
}
}
flags &= ~MAP_MARKERS;
}
void Graph::printMarkers(PSOutput* psPtr, int under)
{
for (ChainLink* link = Chain_LastLink(markers_.displayList); link;
link = Chain_PrevLink(link)) {
Marker* markerPtr = (Marker*)Chain_GetValue(link);
MarkerOptions* mops = (MarkerOptions*)markerPtr->ops();
if (mops->drawUnder != under)
continue;
if (mops->hide)
continue;
if (isElementHidden(markerPtr))
continue;
psPtr->format("%% Marker \"%s\" is a %s.\n",
markerPtr->name_, markerPtr->className());
markerPtr->print(psPtr);
}
}
Marker* Graph::nearestMarker(int x, int y, int under)
{
Point2d point;
point.x = (double)x;
point.y = (double)y;
for (ChainLink* link = Chain_FirstLink(markers_.displayList); link;
link = Chain_NextLink(link)) {
Marker* markerPtr = (Marker*)Chain_GetValue(link);
MarkerOptions* mops = (MarkerOptions*)markerPtr->ops();
if ((markerPtr->flags & MAP_ITEM) || mops->hide)
continue;
if (isElementHidden(markerPtr))
continue;
if (mops->drawUnder == under)
if (markerPtr->pointIn(&point))
return markerPtr;
}
return NULL;
}
