documenthandler.h Example File | Qt Quick Controls 5.12.11

- Qt 5.12
- Qt Quick Controls
- Qt Quick Controls - Text Editor
- documenthandler.h Example File
- Qt 5.12.11 Reference Documentation

# documenthandler.h Example File

texteditor/documenthandler.h

     /****************************************************************************
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     ** This file is part of the examples of the Qt Toolkit.
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     #ifndef DOCUMENTHANDLER_H
     #define DOCUMENTHANDLER_H

     #include <QFont>
     #include <QObject>
     #include <QTextCursor>
     #include <QUrl>

     class QTextDocument;
     class QQuickTextDocument;

     class DocumentHandler : public QObject
     {
         Q_OBJECT

         Q_PROPERTY(QQuickTextDocument *document READ document WRITE setDocument NOTIFY documentChanged)
         Q_PROPERTY(int cursorPosition READ cursorPosition WRITE setCursorPosition NOTIFY cursorPositionChanged)
         Q_PROPERTY(int selectionStart READ selectionStart WRITE setSelectionStart NOTIFY selectionStartChanged)
         Q_PROPERTY(int selectionEnd READ selectionEnd WRITE setSelectionEnd NOTIFY selectionEndChanged)

         Q_PROPERTY(QColor textColor READ textColor WRITE setTextColor NOTIFY textColorChanged)
         Q_PROPERTY(QString fontFamily READ fontFamily WRITE setFontFamily NOTIFY fontFamilyChanged)
         Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment NOTIFY alignmentChanged)

         Q_PROPERTY(bool bold READ bold WRITE setBold NOTIFY boldChanged)
         Q_PROPERTY(bool italic READ italic WRITE setItalic NOTIFY italicChanged)
         Q_PROPERTY(bool underline READ underline WRITE setUnderline NOTIFY underlineChanged)

         Q_PROPERTY(int fontSize READ fontSize WRITE setFontSize NOTIFY fontSizeChanged)

         Q_PROPERTY(QString fileName READ fileName NOTIFY fileUrlChanged)
         Q_PROPERTY(QString fileType READ fileType NOTIFY fileUrlChanged)
         Q_PROPERTY(QUrl fileUrl READ fileUrl NOTIFY fileUrlChanged)

     public:
         explicit DocumentHandler(QObject *parent = nullptr);

         QQuickTextDocument *document() const;
         void setDocument(QQuickTextDocument *document);

         int cursorPosition() const;
         void setCursorPosition(int position);

         int selectionStart() const;
         void setSelectionStart(int position);

         int selectionEnd() const;
         void setSelectionEnd(int position);

         QString fontFamily() const;
         void setFontFamily(const QString &family);

         QColor textColor() const;
         void setTextColor(const QColor &color);

         Qt::Alignment alignment() const;
         void setAlignment(Qt::Alignment alignment);

         bool bold() const;
         void setBold(bool bold);

         bool italic() const;
         void setItalic(bool italic);

         bool underline() const;
         void setUnderline(bool underline);

         int fontSize() const;
         void setFontSize(int size);

         QString fileName() const;
         QString fileType() const;
         QUrl fileUrl() const;

     public Q_SLOTS:
         void load(const QUrl &fileUrl);
         void saveAs(const QUrl &fileUrl);

     Q_SIGNALS:
         void documentChanged();
         void cursorPositionChanged();
         void selectionStartChanged();
         void selectionEndChanged();

         void fontFamilyChanged();
         void textColorChanged();
         void alignmentChanged();

         void boldChanged();
         void italicChanged();
         void underlineChanged();

         void fontSizeChanged();

         void textChanged();
         void fileUrlChanged();

         void loaded(const QString &text);
         void error(const QString &message);

     private:
         void reset();
         QTextCursor textCursor() const;
         QTextDocument *textDocument() const;
         void mergeFormatOnWordOrSelection(const QTextCharFormat &format);

         QQuickTextDocument *m_document;

         int m_cursorPosition;
         int m_selectionStart;
         int m_selectionEnd;

         QFont m_font;
         int m_fontSize;
         QUrl m_fileUrl;
     };

     #endif // DOCUMENTHANDLER_H