QSlider解決點擊不能到該位置問題

方法一：可以繼承重寫一個QSlider

方法二：1.instaneventfiliter(this);slider安裝一個事件過濾器

              2.在eventfilter(QObject *，QEvent*)中攔截它,很簡單吧

 

例子：

	slider=new QSlider(this); 

	slider->installEventFilter(this);

bool trayIconMenu::eventFilter(QObject *obj, QEvent *event)

{

    if(obj==slider)

    {

        if (event->type()==QEvent::MouseButtonPress)           //判斷類型

        {

            QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);

            if (mouseEvent->button() == Qt::LeftButton)	//判斷左鍵

            {

               int dur = slider->maximum() - slider->minimum();

               int pos = slider->minimum() + dur * ((double)mouseEvent->x() / slider->width());

               if(pos != slider->sliderPosition())

                {

                  slider->setValue(pos);

                }

            }

        }

    }

    return QObject::eventFilter(obj,event);

}

okay!即可以實現slider點哪里就到哪里

http://blog.csdn.net/what951006/article/details/51507801