C++ Listing::at方法代码示例

void replaceDirectoryVariable(ArchiveSharedData* shared, QString& io_pathString, const QString& varname, int pos, int len)
{
    Listing* paths = shared->directoryVariableMap->findListing(varname.toStdString());
    if(paths){
        for(int i=0; i < paths->size(); ++i){
            string vpath;
            QString replaced(io_pathString);
            replaced.replace(pos, len, paths->at(i)->toString().c_str());
            filesystem::file_status fstatus = filesystem::status(filesystem::path(replaced.toStdString()));
            if(filesystem::is_directory(fstatus) || filesystem::exists(fstatus)) {
                io_pathString = replaced;
                return;
            }
        }
    }
    MessageView::mainInstance()->putln(
        MessageView::WARNING,
        QString(_("${%1} of \"%2\" cannot be expanded !")).arg(varname).arg(io_pathString));
}

bool ParametricPathProcessorImpl::replaceDirectoryVariable
(QString& io_pathString, const string& varname, int pos, int len)
{
    Listing* paths = variables->findListing(varname);
    if(paths) {
        for(int i=0; i < paths->size(); ++i) {
            string vpath;
            QString replaced(io_pathString);
            replaced.replace(pos, len, paths->at(i)->toString().c_str());
            filesystem::file_status fstatus = filesystem::status(filesystem::path(replaced.toStdString()));
            if(filesystem::is_directory(fstatus) || filesystem::exists(fstatus)) {
                io_pathString = replaced;
                return true;
            }
        }
    }

    errorMessage = str(format(_("%1% of \"%2%\" cannot be expanded !")) % varname % io_pathString.toStdString());
    return false;
}

/**
   \todo Introduce a tree structure to improve the efficiency of searching matched directories
*/
bool ParametricPathProcessorImpl::findSubDirectoryOfDirectoryVariable
(const filesystem::path& path, std::string& out_varName, filesystem::path& out_relativePath)
{
    out_relativePath.clear();
    int maxMatchSize = 0;
    filesystem::path relativePath;
    Mapping::const_iterator p;
    for(p = variables->begin(); p != variables->end(); ++p) {
        Listing* paths = p->second->toListing();
        if(paths) {
            for(int i=0; i < paths->size(); ++i) {
                filesystem::path dirPath(paths->at(i)->toString());
                int n = findSubDirectory(dirPath, path, relativePath);
                if(n > maxMatchSize) {
                    maxMatchSize = n;
                    out_relativePath = relativePath;
                    out_varName = fromUTF8(p->first);
                }
            }
        }
    }
    return (maxMatchSize > 0);
}

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);
                        }
                    }
                }
            }
        }
    }
}