QT-文本编辑器

widget.h:

#ifndef WIDGET_H

#define WIDGET_H

#include <QWidget>

#include<QPushButton>

#include<QTextEdit>

class Widget : public QWidget

{

    Q_OBJECT

private:

    QPushButton *colorButton;

    QPushButton *fontButton;

    QTextEdit *edit;

public:

    Widget(QWidget *parent = 0);

    ~Widget();

public slots:

    void ClickedColorButton();

    void ClickedFontButton();

};

#endif // WIDGET_H

widget.cpp:

#include "widget.h"

#include<QColorDialog>

#include<QFontDialog>

Widget::Widget(QWidget *parent)

    : QWidget(parent)

{

    colorButton = new QPushButton("color",this);

    fontButton = new QPushButton("font",this);

    edit =new QTextEdit(this);

    colorButton->setGeometry(30,30,80,30);

    fontButton->setGeometry(120,30,80,30);

    edit->setGeometry(30,80,220,150);

    connect(colorButton,SIGNAL(clicked()),this,SLOT(ClickedColorButton()));

    connect(fontButton,SIGNAL(clicked()),this,SLOT(ClickedFontButton()));

}

Widget::~Widget()

{

}

void Widget::ClickedColorButton()

{

QColorDialog *colorDialog=new QColorDialog(this);

colorDialog->setCurrentColor(QColor(Qt::black));

if(QDialog::Accepted==colorDialog->exec())

    edit->setTextColor(colorDialog->currentColor());

}

void Widget::ClickedFontButton()

{

QFontDialog *fontdialog=new QFontDialog(this);

fontdialog->setCurrentFont(edit->font());

if(QDialog::Accepted==fontdialog->exec())

    edit->setCurrentFont(fontdialog->currentFont());

}