void AnnotationState::deleteAnnotation(int id)
{
int idx = findById(id);
if(idx<0) {
qWarning("Cannot remove annotation: ID %d not found!", id);
return;
}
m_annotations.removeAt(idx);
emit annotationDeleted(id);
}
/**
* This prepares the canvas for new drawing commands.
* @param myid the context id of the local user
*/
void CanvasScene::initCanvas(net::Client *client)
{
delete _image;
delete _statetracker;
_image = new CanvasItem();
_statetracker = new StateTracker(_image->image(), client->layerlist(), client->myId(), this);
connect(_statetracker, &StateTracker::myAnnotationCreated, [this](int id) {
emit myAnnotationCreated(getAnnotationItem(id));
});
connect(_statetracker, SIGNAL(layerAutoselectRequest(int)), this, SIGNAL(layerAutoselectRequest(int)));
connect(_statetracker, SIGNAL(userMarkerAttribs(int,QColor,QString)), this, SLOT(setUserMarkerAttribs(int,QColor,QString)));
connect(_statetracker, SIGNAL(userMarkerMove(int,QPointF,int)), this, SLOT(moveUserMarker(int,QPointF,int)));
connect(_statetracker, SIGNAL(userMarkerHide(int)), this, SLOT(hideUserMarker(int)));
connect(_image->image(), SIGNAL(resized(int,int,QSize)), this, SLOT(handleCanvasResize(int,int,QSize)));
connect(_image->image(), SIGNAL(annotationChanged(int)), this, SLOT(handleAnnotationChange(int)));
connect(client, SIGNAL(layerVisibilityChange(int,bool)), _image->image(), SLOT(setLayerHidden(int,bool)));
addItem(_image);
// Clear out any old annotation items
foreach(QGraphicsItem *item, items()) {
if(item->type() == AnnotationItem::Type) {
emit annotationDeleted(static_cast<AnnotationItem*>(item)->id());
delete item;
}
}
foreach(UserMarkerItem *i, _usermarkers)
delete i;
_usermarkers.clear();
QList<QRectF> regions;
regions.append(sceneRect());
emit canvasInitialized();
emit changed(regions);
}
