File indexing completed on 2024-05-12 15:27:42

0001 /***************************************************************************
0002     File                 : TreeViewComboBox.h
0003     Project              : LabPlot
0004     Description          : Provides a QTreeView in a QComboBox
0005     --------------------------------------------------------------------
0006     Copyright            : (C) 2008-2016 by Alexander Semke (alexander.semke@web.de)
0007 
0008  ***************************************************************************/
0009 
0010 /***************************************************************************
0011  *                                                                         *
0012  *  This program is free software; you can redistribute it and/or modify   *
0013  *  it under the terms of the GNU General Public License as published by   *
0014  *  the Free Software Foundation; either version 2 of the License, or      *
0015  *  (at your option) any later version.                                    *
0016  *                                                                         *
0017  *  This program is distributed in the hope that it will be useful,        *
0018  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
0019  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
0020  *  GNU General Public License for more details.                           *
0021  *                                                                         *
0022  *   You should have received a copy of the GNU General Public License     *
0023  *   along with this program; if not, write to the Free Software           *
0024  *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
0025  *   Boston, MA  02110-1301  USA                                           *
0026  *                                                                         *
0027  ***************************************************************************/
0028 
0029 #ifndef TREEVIEWCOMBOBOX_H
0030 #define TREEVIEWCOMBOBOX_H
0031 
0032 #include <QComboBox>
0033 
0034 class AbstractAspect;
0035 class QGroupBox;
0036 class QLineEdit;
0037 class QTreeView;
0038 
0039 enum class AspectType : quint64;
0040 
0041 class TreeViewComboBox : public QComboBox {
0042     Q_OBJECT
0043 
0044 public:
0045     explicit TreeViewComboBox(QWidget* parent = nullptr);
0046 
0047     void setModel(QAbstractItemModel*);
0048     void setCurrentModelIndex(const QModelIndex&);
0049     QModelIndex currentModelIndex() const;
0050 
0051     void setTopLevelClasses(const QList<AspectType>&);
0052     void setHiddenAspects(const QList<const AbstractAspect*>&);
0053 
0054     void showPopup() override;
0055     void hidePopup() override;
0056     void setInvalid(bool invalid, const QString& tooltip = QString());
0057 
0058     void useCurrentIndexText(const bool set);
0059 
0060     QString currentText() const;
0061     void setText(const QString& text);
0062 
0063 private:
0064     QTreeView* m_treeView;
0065     QGroupBox* m_groupBox;
0066     QLineEdit* m_lineEdit;
0067     QString m_lineEditText{""};
0068     bool m_useCurrentIndexText{true};
0069 
0070     QList<AspectType> m_topLevelClasses;
0071     QList<const char*> m_selectableClasses;
0072     QList<const AbstractAspect*> m_hiddenAspects;
0073 
0074     void showTopLevelOnly(const QModelIndex&);
0075     bool eventFilter(QObject*, QEvent*) override;
0076     bool filter(const QModelIndex&, const QString&);
0077     bool isTopLevel(const AbstractAspect*) const;
0078     bool isHidden(const AbstractAspect*) const;
0079 
0080     void paintEvent(QPaintEvent *) override;
0081 
0082 private slots:
0083     void treeViewIndexActivated(const QModelIndex&);
0084     void filterChanged(const QString&);
0085 
0086 signals:
0087     void currentModelIndexChanged(const QModelIndex&);
0088 };
0089 
0090 #endif