127 lines
3.2 KiB
C++
127 lines
3.2 KiB
C++
#ifndef MODELS_CHECKLISTMODEL_H
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#define MODELS_CHECKLISTMODEL_H
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#include "../global.h"
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#include <QAbstractListModel>
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#include <QList>
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QT_FORWARD_DECLARE_CLASS(QSettings)
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namespace QtUtilities {
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class ChecklistModel;
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class QT_UTILITIES_EXPORT ChecklistItem {
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friend class ChecklistModel;
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public:
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ChecklistItem(const QVariant &id = QVariant(), const QString &label = QString(), Qt::CheckState checked = Qt::Unchecked);
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const QVariant &id() const;
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const QString &label() const;
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Qt::CheckState checkState() const;
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bool isChecked() const;
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private:
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QVariant m_id;
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QString m_label;
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Qt::CheckState m_checkState;
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};
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inline ChecklistItem::ChecklistItem(const QVariant &id, const QString &label, Qt::CheckState checkState)
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: m_id(id)
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, m_label(label)
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, m_checkState(checkState)
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{
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}
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/*!
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* \brief Returns the ID of the item.
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*/
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inline const QVariant &ChecklistItem::id() const
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{
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return m_id;
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}
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/*!
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* \brief Returns the label.
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*/
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inline const QString &ChecklistItem::label() const
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{
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return m_label;
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}
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/*!
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* \brief Returns the check state.
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*/
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inline Qt::CheckState ChecklistItem::checkState() const
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{
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return m_checkState;
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}
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/*!
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* \brief Returns whether the item is checked.
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*/
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inline bool ChecklistItem::isChecked() const
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{
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return m_checkState == Qt::Checked;
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}
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class QT_UTILITIES_EXPORT ChecklistModel : public QAbstractListModel {
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Q_OBJECT
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public:
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explicit ChecklistModel(QObject *parent = nullptr);
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int rowCount(const QModelIndex &parent = QModelIndex()) const override;
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Qt::ItemFlags flags(const QModelIndex &index) const override;
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QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
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QMap<int, QVariant> itemData(const QModelIndex &index) const override;
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bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::DisplayRole) override;
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bool setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles) override;
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bool setChecked(int row, bool checked);
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bool setChecked(int row, Qt::CheckState checked);
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virtual QString labelForId(const QVariant &id) const;
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Qt::DropActions supportedDropActions() const override;
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bool insertRows(int row, int count, const QModelIndex &parent) override;
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bool removeRows(int row, int count, const QModelIndex &parent) override;
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const QList<ChecklistItem> &items() const;
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void setItems(const QList<ChecklistItem> &items);
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void restore(QSettings &settings, const QString &name);
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void save(QSettings &settings, const QString &name) const;
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QVariantList toVariantList() const;
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void applyVariantList(const QVariantList &checkedIds);
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static constexpr int idRole();
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private:
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QList<ChecklistItem> m_items;
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};
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/*!
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* \brief Returns the items.
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*/
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inline const QList<ChecklistItem> &ChecklistModel::items() const
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{
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return m_items;
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}
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/*!
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* \brief Sets the checked state of the specified item.
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*/
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inline bool ChecklistModel::setChecked(int row, bool checked)
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{
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return setChecked(row, checked ? Qt::Checked : Qt::Unchecked);
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}
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/*!
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* \brief Returns the role used to get or set the item ID.
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*/
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constexpr int ChecklistModel::idRole()
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{
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return Qt::UserRole + 1;
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}
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} // namespace QtUtilities
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#endif // MODELS_CHECKLISTMODEL_H
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