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   1 /* $BEGIN_LICENSE
   2
   3 This file is part of Minitube.
   4 Copyright 2009, Flavio Tordini <flavio.tordini@gmail.com>
   5
   6 Minitube is free software: you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation, either version 3 of the License, or
   9 (at your option) any later version.
  10
  11 Minitube is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with Minitube.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 $END_LICENSE */
  20 #ifndef AUTOCOMPLETE_H
  21 #define AUTOCOMPLETE_H
  22
  23 #include <QtGui>
  24
  25 class Suggester;
  26 class Suggestion;
  27 class SearchLineEdit;
  28
  29 class AutoComplete : public QObject {
  30
  31     Q_OBJECT
  32
  33 public:
  34     AutoComplete(SearchLineEdit *buddy, QLineEdit *lineEdit);
  35     void setSuggester(Suggester* suggester);
  36     QListWidget* getPopup() { return popup; }
  37     void preventSuggest();
  38     void enableSuggest();
  39
  40 signals:
  41     void suggestionAccepted(Suggestion *suggestion);
  42     void suggestionAccepted(const QString &value);
  43
  44 protected:
  45     bool eventFilter(QObject *obj, QEvent *ev);
  46
  47 private slots:
  48     void acceptSuggestion();
  49     void suggest();
  50     void itemEntered(QListWidgetItem *item);
  51     void currentItemChanged(QListWidgetItem *item);
  52     void suggestionsReady(const QList<Suggestion*> &suggestions);
  53     void adjustPosition();
  54     void enableItemHovering();
  55
  56 private:
  57     void showSuggestions(const QList<Suggestion*> &suggestions);
  58     void hideSuggestions();
  59
  60     SearchLineEdit *buddy;
  61     QLineEdit *lineEdit;
  62     QString originalText;
  63     QListWidget *popup;
  64     QTimer *timer;
  65     bool enabled;
  66     Suggester *suggester;
  67     QList<Suggestion*> suggestions;
  68     bool itemHovering;
  69 };
  70
  71 #endif // AUTOCOMPLETE_H