textedit.h Example File

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 #ifndef TEXTEDIT_H
 #define TEXTEDIT_H

 #include <QMainWindow>
 #include <QMap>
 #include <QPointer>

 class QAction;
 class QComboBox;
 class QFontComboBox;
 class QTextEdit;
 class QTextCharFormat;
 class QMenu;
 class QPrinter;

 class TextEdit : public QMainWindow
 {
     Q_OBJECT

 public:
     TextEdit(QWidget *parent = 0);

     bool load(const QString &f);

 public slots:
     void fileNew();

 protected:
     void closeEvent(QCloseEvent *e) override;

 private slots:
     void fileOpen();
     bool fileSave();
     bool fileSaveAs();
     void filePrint();
     void filePrintPreview();
     void filePrintPdf();

     void textBold();
     void textUnderline();
     void textItalic();
     void textFamily(const QString &f);
     void textSize(const QString &p);
     void textStyle(int styleIndex);
     void textColor();
     void textAlign(QAction *a);

     void currentCharFormatChanged(const QTextCharFormat &format);
     void cursorPositionChanged();

     void clipboardDataChanged();
     void about();
     void printPreview(QPrinter *);

 private:
     void setupFileActions();
     void setupEditActions();
     void setupTextActions();
     bool maybeSave();
     void setCurrentFileName(const QString &fileName);

     void mergeFormatOnWordOrSelection(const QTextCharFormat &format);
     void fontChanged(const QFont &f);
     void colorChanged(const QColor &c);
     void alignmentChanged(Qt::Alignment a);

     QAction *actionSave;
     QAction *actionTextBold;
     QAction *actionTextUnderline;
     QAction *actionTextItalic;
     QAction *actionTextColor;
     QAction *actionAlignLeft;
     QAction *actionAlignCenter;
     QAction *actionAlignRight;
     QAction *actionAlignJustify;
     QAction *actionUndo;
     QAction *actionRedo;
 #ifndef QT_NO_CLIPBOARD
     QAction *actionCut;
     QAction *actionCopy;
     QAction *actionPaste;
 #endif

     QComboBox *comboStyle;
     QFontComboBox *comboFont;
     QComboBox *comboSize;

     QToolBar *tb;
     QString fileName;
     QTextEdit *textEdit;
 };

 #endif // TEXTEDIT_H