Qt 4.8: textedit.h Example File (demos/textedit/textedit.h)

Qt Reference Documentation

# textedit.h Example File

demos/textedit/textedit.h

     /****************************************************************************
     **
     ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
     ** All rights reserved.
     ** Contact: Nokia Corporation (qt-info@nokia.com)
     **
     ** This file is part of the demonstration applications of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** GNU Lesser General Public License Usage
     ** This file may be used under the terms of the GNU Lesser General Public
     ** License version 2.1 as published by the Free Software Foundation and
     ** appearing in the file LICENSE.LGPL included in the packaging of this
     ** file. Please review the following information to ensure the GNU Lesser
     ** General Public License version 2.1 requirements will be met:
     ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
     **
     ** In addition, as a special exception, Nokia gives you certain additional
     ** rights. These rights are described in the Nokia Qt 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.
     **
     ** Other Usage
     ** Alternatively, this file may be used in accordance with the terms and
     ** conditions contained in a signed written agreement between you and Nokia.
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     ****************************************************************************/

     #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