MappingPtr ViewAreaImpl::storePaneState(ViewPane* pane, Archive* archive)
{
MappingPtr state = new Mapping();
state->write("type", "pane");
Listing* views = state->createFlowStyleListing("views");
const int n = pane->count();
for(int i=0; i < n; ++i){
View* view = pane->view(i);
int id = archive->getViewId(view);
if(id >= 0){
views->append(id);
if(i == pane->currentIndex()){
state->write("current", id);
}
}
}
if(views->empty()){
state.reset();
}
return state;
}
void ViewManager::restoreViews(ArchivePtr archive, const std::string& key, ViewManager::ViewStateInfo& out_viewStateInfo)
{
MessageView* mv = MessageView::instance();
typedef map<ViewInfo*, vector<View*> > ViewsMap;
ViewsMap remainingViewsMap;
Listing* viewList = archive->findListing(key);
if(viewList->isValid() && !viewList->empty()){
vector<ViewState>* viewsToRestoreState = new vector<ViewState>();
out_viewStateInfo.data = viewsToRestoreState;
int id;
string moduleName;
string className;
string instanceName;
for(int i=0; i < viewList->size(); ++i){
Archive* viewArchive = dynamic_cast<Archive*>(viewList->at(i)->toMapping());
if(viewArchive){
bool isHeaderValid =
viewArchive->read("id", id) &&
viewArchive->read("plugin", moduleName) &&
viewArchive->read("class", className);
if(isHeaderValid){
View* view = 0;
if(!viewArchive->read("name", instanceName)){
view = getOrCreateView(moduleName, className);
} else {
// get one of the view instances having the instance name, or create a new instance.
// Different instances are assigned even if there are instances with the same name in the archive
ViewInfo* info = findViewInfo(moduleName, className);
if(info){
vector<View*>* remainingViews;
ViewsMap::iterator p = remainingViewsMap.find(info);
if(p != remainingViewsMap.end()){
remainingViews = &p->second;
} else {
remainingViews = &remainingViewsMap[info];
InstanceInfoList& instances = info->instances;
remainingViews->reserve(instances.size());
InstanceInfoList::iterator q = instances.begin();
if(info->hasDefaultInstance() && q != instances.end()){
++q;
}
while(q != instances.end()){
remainingViews->push_back((*q++)->view);
}
}
for(vector<View*>::iterator q = remainingViews->begin(); q != remainingViews->end(); ++q){
if((*q)->name() == instanceName){
view = *q;
remainingViews->erase(q);
break;
}
}
if(!view){
if(!info->isSingleton() || info->instances.empty()){
view = info->createView(instanceName, true);
} else {
mv->putln(MessageView::ERROR,
boost::format(_("A singleton view \"%1%\" of the %2% type cannot be created because its singleton instance has already been created."))
% instanceName % info->className());
}
}
}
}
if(view){
archive->registerViewId(view, id);
ArchivePtr state = viewArchive->findSubArchive("state");
if(state->isValid()){
state->inheritSharedInfoFrom(*archive);
viewsToRestoreState->push_back(ViewState(view, state));
}
if(viewArchive->get("mounted", false)){
mainWindow->viewArea()->addView(view);
}
}
}
}
}
}
}