documenthandler.h Example File

texteditor/src/documenthandler.h
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 #ifndef DOCUMENTHANDLER_H
 #define DOCUMENTHANDLER_H

 #include <QQuickTextDocument>

 #include <QtGui/QTextCharFormat>
 #include <QtCore/QTextCodec>

 #include <qqmlfile.h>

 class QTextDocument;

 class DocumentHandler : public QObject
 {
     Q_OBJECT

     Q_ENUMS(HAlignment)

     Q_PROPERTY(QQuickItem *target READ target WRITE setTarget NOTIFY targetChanged)
     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(QStringList defaultFontSizes READ defaultFontSizes NOTIFY defaultFontSizesChanged)

     Q_PROPERTY(QUrl fileUrl READ fileUrl WRITE setFileUrl NOTIFY fileUrlChanged)
     Q_PROPERTY(QString text READ text WRITE setText NOTIFY textChanged)
     Q_PROPERTY(QString documentTitle READ documentTitle WRITE setDocumentTitle NOTIFY documentTitleChanged)

 public:
     DocumentHandler();

     QQuickItem *target() { return m_target; }

     void setTarget(QQuickItem *target);

     void setCursorPosition(int position);
     void setSelectionStart(int position);
     void setSelectionEnd(int position);

     int cursorPosition() const { return m_cursorPosition; }
     int selectionStart() const { return m_selectionStart; }
     int selectionEnd() const { return m_selectionEnd; }

     QString fontFamily() const;

     QColor textColor() const;

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

     bool bold() const;
     bool italic() const;
     bool underline() const;
     int fontSize() const;

     QStringList defaultFontSizes() const;
     QUrl fileUrl() const;
     QString text() const;

     QString documentTitle() const;

 public Q_SLOTS:
     void setBold(bool arg);
     void setItalic(bool arg);
     void setUnderline(bool arg);
     void setFontSize(int arg);
     void setTextColor(const QColor &arg);
     void setFontFamily(const QString &arg);

     void setFileUrl(const QUrl &arg);
     void setText(const QString &arg);
     void saveAs(const QUrl &arg, const QString &fileType);

     void setDocumentTitle(QString arg);

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

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

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

     void fontSizeChanged();
     void defaultFontSizesChanged();

     void fileUrlChanged();

     void textChanged();
     void documentTitleChanged();
     void error(QString message);

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

     QQuickItem *m_target;
     QTextDocument *m_doc;

     int m_cursorPosition;
     int m_selectionStart;
     int m_selectionEnd;

     QFont m_font;
     int m_fontSize;
     QUrl m_fileUrl;
     QString m_text;
     QString m_documentTitle;
 };

 #endif