SmartPDCode/Qt/Qt_Test_Pro_5inch/qmousemovelist.cpp

#include "qmousemovelist.h"
#include <QMouseEvent>

QMouseMoveList::QMouseMoveList(QWidget *parent):QTableWidget(parent),m_pMouseStart(0,0)
{
    setHorizontalScrollMode(ScrollPerPixel);
    setVerticalScrollMode(ScrollPerPixel);
}

void QMouseMoveList::mouseMoveEvent(QMouseEvent *event)
{
    if (event->buttons()&Qt::MouseButton::LeftButton)
    {
        QPoint delta = m_pMouseStart - event->pos();
        if(horizontalScrollBar())
        {
            int hValue =horizontalScrollBar()->value();
            horizontalScrollBar()->setValue(delta.x() + hValue);
        }
        if(verticalScrollBar())
        {
            int vValue = verticalScrollBar()->value();
            verticalScrollBar()->setValue(delta.y() + vValue);
        }
        m_pMouseStart = event->pos();
    }
}

void QMouseMoveList::mousePressEvent(QMouseEvent *event)
{
    if (event->buttons() & Qt::MouseButton::LeftButton)
    {
        m_pMouseStart = event->pos();
    }
    QWidget::mousePressEvent(event);
}