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bufferviewfilter.h
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20 
21 #ifndef BUFFERVIEWFILTER_H_
22 #define BUFFERVIEWFILTER_H_
23 
24 #include <QAction>
25 #include <QDropEvent>
26 #include <QFlags>
27 #include <QPointer>
28 #include <QSet>
29 #include <QSortFilterProxyModel>
30 
31 #include "types.h"
32 #include "bufferviewconfig.h"
33 
34 /*****************************************
35  * Buffer View Filter
36  *****************************************/
37 class BufferViewFilter : public QSortFilterProxyModel
38 {
39  Q_OBJECT
40 
41 public:
42  enum Mode {
43  NoActive = 0x01,
44  NoInactive = 0x02,
45  SomeNets = 0x04,
46  AllNets = 0x08,
47  NoChannels = 0x10,
48  NoQueries = 0x20,
49  NoServers = 0x40,
50  FullCustom = 0x80
51  };
52  Q_DECLARE_FLAGS(Modes, Mode)
53 
54  BufferViewFilter(QAbstractItemModel *model, BufferViewConfig *config = 0);
55 
56  virtual Qt::ItemFlags flags(const QModelIndex &index) const;
57  virtual bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent);
58 
59  QVariant data(const QModelIndex &index, int role) const;
60  QVariant checkedState(const QModelIndex &index) const;
61 
62  bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
63  bool setCheckedState(const QModelIndex &index, Qt::CheckState state);
64 
65  void setConfig(BufferViewConfig *config);
66  inline BufferViewConfig *config() const { return _config; }
67 
68  virtual void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
69 
70  QList<QAction *> actions(const QModelIndex &index);
71 
72 public slots:
73  void checkPreviousCurrentForRemoval(const QModelIndex &current, const QModelIndex &previous);
74  void checkItemForRemoval(const QModelIndex &index) { checkItemsForRemoval(index, index); }
75  void checkItemsForRemoval(const QModelIndex &topLeft, const QModelIndex &bottomRight);
76 
77 protected:
78  bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;
79  bool lessThan(const QModelIndex &source_left, const QModelIndex &source_right) const;
80  bool bufferLessThan(const QModelIndex &source_left, const QModelIndex &source_right) const;
81  bool networkLessThan(const QModelIndex &source_left, const QModelIndex &source_right) const;
82  virtual void customEvent(QEvent *event);
83 
84 signals:
85  void _dataChanged(const QModelIndex &source_topLeft, const QModelIndex &source_bottomRight);
86  void configChanged();
87 
88 private slots:
89  void configInitialized();
90  void enableEditMode(bool enable);
92 
93 private:
94  QPointer<BufferViewConfig> _config;
95  Qt::SortOrder _sortOrder;
96 
98  bool _editMode;
99  QAction _enableEditMode;
100  QSet<BufferId> _toAdd;
101  QSet<BufferId> _toTempRemove;
102  QSet<BufferId> _toRemove;
103 
104  bool filterAcceptBuffer(const QModelIndex &) const;
105  bool filterAcceptNetwork(const QModelIndex &) const;
106  void addBuffer(const BufferId &bufferId) const;
107  void addBuffers(const QList<BufferId> &bufferIds) const;
108  static bool bufferIdLessThan(const BufferId &, const BufferId &);
109 };
110 
111 
112 Q_DECLARE_OPERATORS_FOR_FLAGS(BufferViewFilter::Modes)
113 
114 #endif // BUFFERVIEWFILTER_H_