QPushButton 中的两种颜色文本

2021-12-09 00:00:00 qt4 qt qtextdocument qpushbutton c++

我需要一个文本中有两种颜色的 QPushButton.我在 QTextDocument 中找到了一个带有 html 代码的解决方案，并且它正在运行.但是我需要居中对齐并且 html 代码不起作用.

I need a QPushButton with two colors in the text. I found a solution with a html code in QTextDocument and it's working. But I need center align and the html code isn't working.

 QTextDocument Text;
  Text.setHtml("<p align=center><font>Button</font><br/><font color=yellow>1</font></p>");

   QPixmap pixmap(Text.size().width(), Text.size().height());
   pixmap.fill( Qt::transparent );
   QPainter painter(&pixmap);
   Text.drawContents(&painter, pixmap.rect());

   QIcon ButtonIcon(pixmap);
   ui->toolButton->setText("");
   ui->toolButton->setIcon(ButtonIcon);
   ui->toolButton->setIconSize(pixmap.rect().size());

我明白了，

相同的代码 HTML 在 QLabel 中工作

The same code HTML is working in a QLabel

ui->label->setText("<p align=center><font>Label</font><br/><font color=yellow>1</font></p>");

有什么解决办法吗?

非常感谢.

推荐答案

你可以从QPushButton派生出来，通过paintEvent中的QPainter自己绘制文本.

You can derive from QPushButton and draw text yourself via QPainter in paintEvent.

class Button : public QPushButton
{
Q_OBJECT

public:
Button(QWidget *parent = 0)
: QPushButton(parent)
    { }

void paintEvent(QPaintEvent *p)
    {
        QPushButton::paintEvent(p);
        QPainter paint(this);
        paint.drawText(QPoint(10,10),"Hello");
    }
};

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