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Various task related improvements.

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* Errors are reported back to task users via Failure signals.
* Lwjgl doesn't download on each legacy instance start anymore.
* Tasks were unified when it comes to success/failure.
* Task dialogs don't get spawned after short tasks finish anymore.
This commit is contained in:
Petr Mrázek
2013-08-09 00:26:35 +02:00
parent c8925e0f66
commit bf5f5091ef
16 changed files with 122 additions and 148 deletions
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23
backend/tasks/Task.h
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@ -27,33 +27,21 @@ class LIBMULTIMC_EXPORT Task : public QObject
public:
explicit Task(QObject *parent = 0);
// Starts the task.
void startTask();
QString getStatus() const;
int getProgress() const;
bool isRunning() const;
/*!
* \brief Calculates and sets the task's progress based on the number of parts completed out of the total number to complete.
* This is essentially just shorthand for setProgress((parts / whole) * 100);
* \param parts The parts out of the whole completed. This parameter should
* be less than whole. If it is greater than whole, progress is set to 100.
* \param whole The total number of things that need to be completed.
*/
void calcProgress(int parts, int whole);
public slots:
void startTask();
protected slots:
void setStatus(const QString& status);
void setProgress(int progress);
signals:
void started(Task* task);
void ended(Task* task);
void started();
void ended();
void failed(QString reason);
void succeeded();
void statusChanged(Task* task, const QString& status);
void progressChanged(Task* task, int progress);
@ -65,7 +53,8 @@ protected:
virtual void executeTask() = 0;
virtual void emitStarted();
virtual void emitEnded();
virtual void emitFailed(QString reason);
virtual void emitSucceeded();
virtual void emitStatusChange(const QString &status);
virtual void emitProgressChange(int progress);