File indexing completed on 2024-05-12 03:48:30 

0001 /*
0002     File                 : TreeViewComboBox.h
0003     Project              : LabPlot
0004     Description          : Provides a QTreeView in a QComboBox
0005     --------------------------------------------------------------------
0006     SPDX-FileCopyrightText: 2008-2016 Alexander Semke <alexander.semke@web.de>
0007     SPDX-License-Identifier: GPL-2.0-or-later
0008 */
0009 
0010 #ifndef TREEVIEWCOMBOBOX_H
0011 #define TREEVIEWCOMBOBOX_H
0012 
0013 #include <QComboBox>
0014 
0015 class AbstractAspect;
0016 class AbstractColumn;
0017 class AspectTreeModel;
0018 class QGroupBox;
0019 class QLineEdit;
0020 class QTreeView;
0021 
0022 enum class AspectType : quint64;
0023 
0024 class TreeViewComboBox : public QComboBox {
0025     Q_OBJECT
0026 
0027 public:
0028     explicit TreeViewComboBox(QWidget* parent = nullptr);
0029 
0030     void setModel(AspectTreeModel*);
0031     // void setModel(AbstractItemModel*) override;
0032     void setCurrentModelIndex(const QModelIndex&);
0033     void setAspect(const AbstractAspect*);
0034     AbstractAspect* currentAspect() const;
0035     void setColumn(const AbstractColumn*, const QString&);
0036     QModelIndex currentModelIndex() const;
0037 
0038     void setTopLevelClasses(const QList<AspectType>&);
0039     void setHiddenAspects(const QList<const AbstractAspect*>&);
0040 
0041     void showPopup() override;
0042     void hidePopup() override;
0043     void setInvalid(bool invalid, const QString& tooltip = QString());
0044 
0045     void useCurrentIndexText(const bool set);
0046 
0047     QString currentText() const;
0048     void setText(const QString& text);
0049 
0050 private:
0051     AspectTreeModel* m_model{nullptr};
0052     QTreeView* m_treeView;
0053     QGroupBox* m_groupBox;
0054     QLineEdit* m_lineEdit;
0055     QString m_lineEditText{QLatin1String("")};
0056     bool m_useCurrentIndexText{true};
0057 
0058     QList<AspectType> m_topLevelClasses;
0059     QList<const char*> m_selectableClasses;
0060     QList<const AbstractAspect*> m_hiddenAspects;
0061 
0062     void showTopLevelOnly(const QModelIndex&);
0063     bool eventFilter(QObject*, QEvent*) override;
0064     bool filter(const QModelIndex&, const QString&);
0065     bool isTopLevel(const AbstractAspect*) const;
0066     bool isHidden(const AbstractAspect*) const;
0067 
0068     void paintEvent(QPaintEvent*) override;
0069 
0070 private Q_SLOTS:
0071     void treeViewIndexActivated(const QModelIndex&);
0072     void filterChanged(const QString&);
0073 
0074 Q_SIGNALS:
0075     void currentModelIndexChanged(const QModelIndex&);
0076 };
0077 
0078 #endif