textedit.h Example File

 /****************************************************************************
 **
 ** Copyright (C) 2015 The Qt Company Ltd.
 ** Contact: http://www.qt.io/licensing/
 **
 ** This file is part of the demonstration applications of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and The Qt Company. For licensing terms
 ** and conditions see http://www.qt.io/terms-conditions. For further
 ** information use the contact form at http://www.qt.io/contact-us.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 2.1 or version 3 as published by the Free
 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
 ** following information to ensure the GNU Lesser General Public License
 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** As a special exception, The Qt Company gives you certain additional
 ** rights. These rights are described in The Qt Company LGPL Exception
 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 3.0 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU General Public License version 3.0 requirements will be
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #ifndef TEXTEDIT_H
 #define TEXTEDIT_H

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

 QT_FORWARD_DECLARE_CLASS(QAction)
 QT_FORWARD_DECLARE_CLASS(QComboBox)
 QT_FORWARD_DECLARE_CLASS(QFontComboBox)
 QT_FORWARD_DECLARE_CLASS(QTextEdit)
 QT_FORWARD_DECLARE_CLASS(QTextCharFormat)
 QT_FORWARD_DECLARE_CLASS(QMenu)

 class TextEdit : public QMainWindow
 {
     Q_OBJECT

 public:
     TextEdit(QWidget *parent = 0);

 protected:
     virtual void closeEvent(QCloseEvent *e);

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

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

     QAction *actionSave,
         *actionTextBold,
         *actionTextUnderline,
         *actionTextItalic,
         *actionTextColor,
         *actionAlignLeft,
         *actionAlignCenter,
         *actionAlignRight,
         *actionAlignJustify,
         *actionUndo,
         *actionRedo,
         *actionCut,
         *actionCopy,
         *actionPaste;

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

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

 #endif