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