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tagsfiltermodel.cpp
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29 
30 #include <QStringList>
31 #include <QtDebug>
32 #include "tagsfiltermodel.h"
33 
34 namespace LeechCraft
35 {
36 namespace Util
37 {
39  : QSortFilterProxyModel (parent)
40  , NormalMode_ (true)
41  , Separator_ (";")
42  , TagsMode_ (TagsInclusionMode::All)
43  {
44  }
45 
46  void TagsFilterModel::SetSeparator (const QString& separator)
47  {
48  Separator_ = separator;
49 
50  if (dynamicSortFilter ())
51  invalidateFilter ();
52  }
53 
55  {
56  TagsMode_ = mode;
57 
58  if (dynamicSortFilter ())
59  invalidateFilter ();
60  }
61 
63  {
64  NormalMode_ = !tags;
65 
66  if (dynamicSortFilter ())
67  invalidateFilter ();
68  }
69 
71  {
72  setTagsMode (true);
73  }
74 
76  {
77  setTagsMode (false);
78  }
79 
80  bool TagsFilterModel::filterAcceptsRow (int source_row, const QModelIndex& index) const
81  {
82  if (NormalMode_)
83  return (index.isValid () && index.model ()->rowCount (index)) ?
84  true :
85  QSortFilterProxyModel::filterAcceptsRow (source_row, index);
86  else
87  {
88  QStringList filterTags;
89  const auto& pattern = filterRegExp ().pattern ();
90  for (const auto& s : pattern.split (Separator_, QString::SkipEmptyParts))
91  filterTags << s.trimmed ();
92 
93  if (!filterTags.size ())
94  return true;
95 
96  const auto& itemTags = GetTagsForIndex (source_row);
97  for (int i = 0; i < filterTags.size (); ++i)
98  {
99  bool found = false;
100  for (int j = 0; j < itemTags.size (); ++j)
101  if (itemTags.at (j).contains (filterTags.at (i)))
102  {
103  found = true;
104  break;
105  }
106  if (!found)
107  return false;
108  else if (TagsMode_ == TagsInclusionMode::Any)
109  return true;
110  }
111  return true;
112  }
113  }
114 }
115 }
void setTagsMode(bool enabled)
Sets whether the tags filtering mode is enabled.
void enableTagsMode()
Convenience slot enabling the tags mode.
void disableTagsMode()
Convenience slot disabling the tags mode.
TagsFilterModel(QObject *parent=0)
Creates the model with the given parent.
virtual QStringList GetTagsForIndex(int row) const =0
Returns the list of tags for the given row.
Tags intersection should be non-empty.
TagsInclusionMode
Describes the modes of matching two sets of tags.
void SetTagsInclusionMode(TagsInclusionMode mode)
Sets the tags inclusion mode.
virtual bool filterAcceptsRow(int, const QModelIndex &) const
Reimplemented from QSortFilterProxyModel::filterAcceptsRow().
void SetSeparator(const QString &separator)
Sets the separator for the tags.