Qt实现一个简单的word文档编辑器

QFont currentFont() const

void currentFontChanged(const QFont &font)

QColor currentColor() const

bool isBold = false;    //是否粗体
bool isUnderLine = false; //是否下划线
bool isDelLine = false; //是否删除线
bool isLean = false; //是否斜体
 
QColor color(Qt::black); //字体颜色

    ui->btnBold->setCheckable(true);
    ui->btnDelLine->setCheckable(true);
    ui->btnLean->setCheckable(true);
    ui->btnUnderline->setCheckable(true);

#include "WTextEdit.h"
#include "ui_WTextEdit.h"
#include <QColorDialog>
#include <QTextDocument>
#include <QTextCursor>
#include <QTextCharFormat>
#include <QFont>
#include <QBrush>
 
bool isBold = false;    //是否粗体
bool isUnderLine = false; //是否下划线
bool isDelLine = false; //是否删除线
bool isLean = false; //是否斜体
 
QColor color(Qt::black); //字体颜色
 
WTextEdit::WTextEdit(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::WTextEdit)
{
    ui->setupUi(this);
 
    ui->btnBold->setCheckable(true);
    ui->btnDelLine->setCheckable(true);
    ui->btnLean->setCheckable(true);
    ui->btnUnderline->setCheckable(true);
}
 
WTextEdit::~WTextEdit()
{
    delete ui;
}
 
 
void WTextEdit::on_btnBold_clicked(bool checked)
{
    isBold = checked;
    updateText();
}
 
void WTextEdit::on_btnLean_clicked(bool checked)
{
    isLean = checked;
    updateText();
}
 
void WTextEdit::on_btnUnderline_clicked(bool checked)
{
    isUnderLine = checked;
    updateText();
}
 
void WTextEdit::on_btnDelLine_clicked(bool checked)
{
    isDelLine = checked;
    updateText();
}
 
void WTextEdit::updateText()
{
    QFont font = ui->fontComboBox->currentFont();
    font.setBold(isBold);
    font.setPointSize(ui->lineEdit->text().toInt());
 
    QTextCharFormat format;
    format.setFont(font);
    format.setFontItalic(isLean);
    format.setFontStrikeOut(isDelLine);
    format.setFontUnderline(isUnderLine);
 
    QPen pen;
    pen.setColor(color);    //设置字体颜色
    format.setTextOutline(pen);
 
    ui->textEdit->textCursor().setCharFormat(format);
}
 
void WTextEdit::on_btnColor_clicked()
{
    QColorDialog dialog;
    dialog.exec();
 
 
    color = dialog.currentColor();
    updateText();
}
 
void WTextEdit::on_lineEdit_textChanged(const QString &arg1)
{
    updateText();
}
 
void WTextEdit::on_fontComboBox_currentFontChanged(const QFont &f)
{
    updateText();
}