tabledelegate.h

/*  Optical Train Delegates
 
    Collection of delegates assigned to each individual column
    in the table view.
 
    SPDX-FileCopyrightText: 2022 Jasem Mutlaq <mutlaqja@ikarustech.com>
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
 
#pragma once
 
#include <QStyledItemDelegate>
#include <QItemDelegate>
 
class QCheckBox;
class QSpinBox;
class QDoubleSpinBox;
class QComboBox;
 
class NotEditableDelegate : public QStyledItemDelegate
{
        Q_OBJECT
    public:
        explicit NotEditableDelegate(QObject *parent = nullptr)
            : QStyledItemDelegate(parent)
        {}
 
    protected:
        bool editorEvent(QEvent *, QAbstractItemModel *, const QStyleOptionViewItem &, const QModelIndex &) override
        {
            return false;
        }
        QWidget* createEditor(QWidget *, const QStyleOptionViewItem &, const QModelIndex &) const override
        {
            return nullptr;
        }
};
 
// Not editable delegate to display numbers to 2 decimal places
class NotEditableDelegate2dp : public QStyledItemDelegate
{
        Q_OBJECT
    public:
        explicit NotEditableDelegate2dp(QObject *parent = nullptr)
            : QStyledItemDelegate(parent)
        {}
 
        QString displayText(const QVariant &value, const QLocale &locale) const
        {
            QString str = QString::number(value.toDouble(), 'f', 2);
            return str;
        }
 
    protected:
        bool editorEvent(QEvent *, QAbstractItemModel *, const QStyleOptionViewItem &, const QModelIndex &) override
        {
            return false;
        }
        QWidget* createEditor(QWidget *, const QStyleOptionViewItem &, const QModelIndex &) const override
        {
            return nullptr;
        }
};
 
class ToggleDelegate : public QItemDelegate
{
        Q_OBJECT
    public:
        explicit ToggleDelegate(QObject *parent = nullptr) : QItemDelegate(parent) {}
 
        QWidget * createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
        void setEditorData(QWidget *editor, const QModelIndex &index) const override;
        void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
        void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override;
        void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
        bool editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &, const QModelIndex &index) override;
};
 
class DoubleDelegate : public QStyledItemDelegate
{
        Q_OBJECT
    public:
        explicit DoubleDelegate(QObject *parent = nullptr, double min = -1, double max = -1,
                                double step = -1) : QStyledItemDelegate(parent)
        {
            this->min = min;
            this->max = max;
            this->step = step;
        }
 
        QWidget * createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
        void setEditorData(QWidget *editor, const QModelIndex &index) const override;
        void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override;
        void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
    protected:
        double min {-1}, max {-1}, step {-1};
};
 
class IntegerDelegate : public QStyledItemDelegate
{
        Q_OBJECT
    public:
        explicit IntegerDelegate(QObject *parent = nullptr, int min = -1, int max = -1, int step = -1) : QStyledItemDelegate(parent)
        {
            this->min = min;
            this->max = max;
            this->step = step;
        }
 
        QWidget * createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
        void setEditorData(QWidget *editor, const QModelIndex &index) const override;
        void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override;
        void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
        void setMinMaxStep(int min, int max, int step);
    protected:
        int min {-1}, max {-1}, step {-1};
};
 
class ComboDelegate : public QStyledItemDelegate
{
        Q_OBJECT
    public:
        explicit ComboDelegate(QObject *parent = nullptr);
 
        QWidget * createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
        void setEditorData(QWidget *editor, const QModelIndex &index) const override;
        void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override;
        void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
        void setValues(const QStringList &values);
        const QStringList &values() const
        {
            return m_Values;
        }
 
    private:
        mutable QStringList m_Values;
};