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79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
#ifndef CSM_DOC_LOADER_H
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#define CSM_DOC_LOADER_H
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#include <vector>
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#include <QObject>
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#include <QMutex>
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#include <QTimer>
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#include <QWaitCondition>
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namespace CSMDoc
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{
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class Document;
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class Loader : public QObject
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{
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Q_OBJECT
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struct Stage
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{
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int mFile;
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int mRecordsLoaded;
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bool mRecordsLeft;
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Stage();
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};
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QMutex mMutex;
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QWaitCondition mThingsToDo;
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std::vector<std::pair<Document *, Stage> > mDocuments;
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QTimer* mTimer;
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bool mShouldStop;
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public:
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Loader();
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QWaitCondition& hasThingsToDo();
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void stop();
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private slots:
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void load();
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public slots:
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void loadDocument (CSMDoc::Document *document);
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///< The ownership of \a document is not transferred.
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void abortLoading (CSMDoc::Document *document);
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///< Abort loading \a docuemnt (ignored if \a document has already finished being
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/// loaded). Will result in a documentNotLoaded signal, once the Loader has finished
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/// cleaning up.
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signals:
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void documentLoaded (Document *document);
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///< The ownership of \a document is not transferred.
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void documentNotLoaded (Document *document, const std::string& error);
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///< Document load has been interrupted either because of a call to abortLoading
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/// or a problem during loading). In the former case error will be an empty string.
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void nextStage (CSMDoc::Document *document, const std::string& name,
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int totalRecords);
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void nextRecord (CSMDoc::Document *document, int records);
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///< \note This signal is only given once per group of records. The group size is
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/// approximately the total number of records divided by the steps value of the
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/// previous nextStage signal.
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void loadMessage (CSMDoc::Document *document, const std::string& message);
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///< Non-critical load error or warning
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};
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}
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#endif
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