File indexing completed on 2024-05-05 05:01:22

 // SPDX-FileCopyrightText: 2024 James Graham <james.h.graham@protonmail.com>
 // SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 
 #pragma once
 
 #include <QAbstractListModel>
 #include <QAbstractTextDocumentLayout>
 #include <QQmlEngine>
 #include <QQuickTextDocument>
 #include <QTextBlock>
 #include <qtmetamacros.h>
 
 /**
  * @class LineModel
  *
  * A model to provide line info for a QQuickTextDocument.
  *
  * @sa QQuickTextDocument
  */
 class LineModel : public QAbstractListModel
 {
     Q_OBJECT
     QML_ELEMENT
 
     /**
      * @brief The QQuickTextDocument that is being handled.
      */
     Q_PROPERTY(QQuickTextDocument *document READ document WRITE setDocument NOTIFY documentChanged)
 
 public:
     /**
      * @brief Defines the model roles.
      */
     enum Roles {
         LineHeightRole = Qt::UserRole + 1, /**< The delegate type of the message. */
     };
     Q_ENUM(Roles)
 
     explicit LineModel(QObject *parent = nullptr);
 
     [[nodiscard]] QQuickTextDocument *document() const;
     void setDocument(QQuickTextDocument *document);
 
     /**
      * @brief Get the given role value at the given index.
      *
      * @sa QAbstractItemModel::data
      */
     [[nodiscard]] QVariant data(const QModelIndex &index, int role) const override;
 
     /**
      * @brief Number of rows in the model.
      *
      * @sa QAbstractItemModel::rowCount
      */
     [[nodiscard]] int rowCount(const QModelIndex &parent = QModelIndex()) const override;
 
     /**
      * @brief Returns a mapping from Role enum values to role names.
      *
      * @sa Roles, QAbstractItemModel::roleNames()
      */
     [[nodiscard]] QHash<int, QByteArray> roleNames() const override;
 
     /**
      * @brief Reset the model.
      *
      * This needs to be called when the QQuickTextDocument container changes width
      * or height as this may change line heights due to wrapping.
      *
      * @sa QQuickTextDocument
      */
     Q_INVOKABLE void resetModel();
 
 Q_SIGNALS:
     void documentChanged();
 
 private:
     QPointer<QQuickTextDocument> m_document = nullptr;
 };