LeechCraft  0.6.70-13729-g7046a9d2a7
Modular cross-platform feature rich live environment.
resourceloader.h
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2  * LeechCraft - modular cross-platform feature rich internet client.
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29 
30 #pragma once
31 
32 #include <memory>
33 #include <QObject>
34 #include <QStringList>
35 #include <QDir>
36 #include <QCache>
37 #include <QPixmap>
38 #include "sysconfig.h"
39 
40 class QAbstractItemModel;
41 class QStandardItemModel;
42 class QSortFilterProxyModel;
43 class QFileSystemWatcher;
44 class QTimer;
45 
46 namespace LC
47 {
48  namespace Util
49  {
50  typedef std::shared_ptr<QIODevice> QIODevice_ptr;
51 
92  class UTIL_SYS_API ResourceLoader : public QObject
93  {
94  Q_OBJECT
95 
96  QStringList LocalPrefixesChain_;
97  QStringList GlobalPrefixesChain_;
98  QString RelativePath_;
99 
100  QHash<QString, QStringList> Entry2Paths_;
101 
102  QStandardItemModel *SubElemModel_;
103  QStringList NameFilters_;
104  QDir::Filters AttrFilters_;
105  QSortFilterProxyModel *SortModel_;
106 
107  QFileSystemWatcher *Watcher_;
108 
109  QTimer *CacheFlushTimer_;
110  mutable QCache<QString, QByteArray> CachePathContents_;
111  mutable QCache<QString, QPixmap> CachePixmaps_;
112  public:
119  ResourceLoader (const QString& relPath, QObject* obj = 0);
120 
129  void AddGlobalPrefix ();
130 
137  void AddLocalPrefix (QString prefix = QString ());
138 
152  void SetCacheParams (int size, int timeout);
153 
161  void FlushCache ();
162 
178  QFileInfoList List (const QString& option,
179  const QStringList& names = {},
180  QDir::Filters filters = QDir::NoFilter) const;
181 
206  QString GetPath (const QStringList& pathVariants) const;
207 
225  QString GetIconPath (const QString& basename) const;
226 
238  QIODevice_ptr Load (const QStringList& pathVariants, bool open = false) const;
239 
253  QIODevice_ptr Load (const QString& pathVariant, bool open = false) const;
254 
268  QIODevice_ptr GetIconDevice (const QString& basename, bool open = false) const;
269 
286  QPixmap LoadPixmap (const QString& basename) const;
287 
305  QAbstractItemModel* GetSubElemModel () const;
306 
322  void SetAttrFilters (QDir::Filters);
323 
339  void SetNameFilters (const QStringList&);
340  private:
341  void ScanPath (const QString&);
342  private slots:
343  void handleDirectoryChanged (const QString&);
344  void handleFlushCaches ();
345  signals:
346  void watchedDirectoriesChanged ();
347  };
348  }
349 }
Utility class for loading a file from a set of locations.
std::shared_ptr< QIODevice > QIODevice_ptr
#define UTIL_SYS_API
Definition: sysconfig.h:37
Definition: constants.h:35