LeechCraft  0.6.70-13729-g7046a9d2a7
Modular cross-platform feature rich live environment.
flattofoldersproxymodel.h
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29 
30 #pragma once
31 
32 #include <memory>
33 #include <QAbstractItemModel>
34 #include <QStringList>
35 #include <QMultiHash>
36 #include "modelsconfig.h"
37 
38 class ITagsManager;
39 
40 namespace LC
41 {
42 struct FlatTreeItem;
43 using FlatTreeItem_ptr = std::shared_ptr<FlatTreeItem>;
44 
45 namespace Util
46 {
47  class UTIL_MODELS_API FlatToFoldersProxyModel : public QAbstractItemModel
48  {
49  Q_OBJECT
50 
51  QAbstractItemModel *SourceModel_ = nullptr;
52 
53  const ITagsManager * const TM_;
54 
55  FlatTreeItem_ptr Root_;
56  QMultiHash<QPersistentModelIndex, FlatTreeItem_ptr> Items_;
57  public:
58  explicit FlatToFoldersProxyModel (const ITagsManager*, QObject* = nullptr);
59 
60  int columnCount (const QModelIndex& = {}) const override;
61  QVariant data (const QModelIndex&, int = Qt::DisplayRole) const override;
62  QVariant headerData (int, Qt::Orientation, int) const override;
63  Qt::ItemFlags flags (const QModelIndex&) const override;
64  QModelIndex index (int, int, const QModelIndex& = {}) const override;
65  QModelIndex parent (const QModelIndex&) const override;
66  int rowCount (const QModelIndex& = {}) const override;
67 
68  Qt::DropActions supportedDropActions () const override;
69  QStringList mimeTypes () const override;
70  QMimeData* mimeData (const QModelIndexList& indexes) const override;
71  bool dropMimeData (const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex& parent) override;
72 
73  void SetSourceModel (QAbstractItemModel*);
74  QAbstractItemModel* GetSourceModel () const;
75  QModelIndex MapToSource (const QModelIndex&) const;
76  QList<QModelIndex> MapFromSource (const QModelIndex&) const;
77  private:
78  void HandleRowInserted (int);
79  void HandleRowRemoved (int);
80  void AddForTag (const QString&, const QPersistentModelIndex&);
81  void RemoveFromTag (const QString&, const QPersistentModelIndex&);
82  void HandleChanged (const QModelIndex&);
83 
84  FlatTreeItem_ptr FindFolder (const QString&) const;
85  FlatTreeItem_ptr GetFolder (const QString&);
86  private slots:
87  void handleDataChanged (const QModelIndex&, const QModelIndex&);
88  void handleModelReset ();
89  void handleRowsInserted (const QModelIndex&, int, int);
90  void handleRowsAboutToBeRemoved (const QModelIndex&, int, int);
91  };
92 }
93 }
QMultiMap< QDateTime, QString > Items_
std::shared_ptr< FlatTreeItem > FlatTreeItem_ptr
Tags manager&#39;s interface.
Definition: itagsmanager.h:43
#define UTIL_MODELS_API
Definition: modelsconfig.h:37
Definition: constants.h:35