window.h Example File

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  #ifndef WINDOW_H
  #define WINDOW_H

  #include <QWidget>

  class QAbstractItemModel;
  class QCheckBox;
  class QComboBox;
  class QGroupBox;
  class QLabel;
  class QLineEdit;
  class QSortFilterProxyModel;
  class QTreeView;

  class Window : public QWidget
  {
      Q_OBJECT

  public:
      Window();

      void setSourceModel(QAbstractItemModel *model);

  private slots:
      void filterRegExpChanged();
      void filterColumnChanged();
      void sortChanged();

  private:
      QSortFilterProxyModel *proxyModel;

      QGroupBox *sourceGroupBox;
      QGroupBox *proxyGroupBox;
      QTreeView *sourceView;
      QTreeView *proxyView;
      QCheckBox *filterCaseSensitivityCheckBox;
      QCheckBox *sortCaseSensitivityCheckBox;
      QLabel *filterPatternLabel;
      QLabel *filterSyntaxLabel;
      QLabel *filterColumnLabel;
      QLineEdit *filterPatternLineEdit;
      QComboBox *filterSyntaxComboBox;
      QComboBox *filterColumnComboBox;
  };

  #endif // WINDOW_H