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textedit.h Example File
demos/textedit/textedit.h

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    #ifndef TEXTEDIT_H
    #define TEXTEDIT_H

    #include <qmainwindow.h>
    #include <qmap.h>
    #include <qpointer.h>

    class QAction;
    class QComboBox;
    class QTabWidget;
    class QTextEdit;
    class QTextCharFormat;
    class QMenu;

    class TextEdit : public QMainWindow
    {
        Q_OBJECT

    public:
        TextEdit(QWidget *parent = 0);

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

    private slots:
        void fileNew();
        void fileOpen();
        void fileSave();
        void fileSaveAs();
        void filePrint();
        void fileClose();
        void fileExit();

        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 editorChanged();

        void currentCharFormatChanged(const QTextCharFormat &format);

        void clipboardDataChanged();

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

        QTextEdit *createNewEditor(const QString &title = QString());

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

        QComboBox *comboStyle,
            *comboFont,
            *comboSize;
        QTabWidget *tabWidget;
        QMap<QTextEdit*, QString> filenames;

        QToolBar *tb;
        QPointer<QTextEdit> currentEditor;
    };

    #endif


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Qt 4.0.0-rc1