QT 的QScrollArea控件介绍

还有好多成员函数没有引用,学习方法很重要,可以经常查看指导手册!


 #include "scopewidget.h"
#include <QScrollArea>
#include<Qlabel>

ScopeWidget::ScopeWidget(QWidget *parent)
    : QWidget(parent)
{
#include "scopewidget.h"
#include <QScrollArea>
#include<Qlabel>
#include <QHBoxLayout>
ScopeWidget::ScopeWidget(QWidget *parent)
    : QWidget(parent)
{
//QHBoxLayout *layout = new QHBoxLayout();
    QLabel *imageLabel = new QLabel(this);
    resize(600,600);
    imageLabel->resize(600,600);
    imageLabel->setPixmap(QPixmap("F:/expert.png"));
 
  
    QScrollArea *scrollArea = new QScrollArea(this);
    scrollArea->resize(350,350);
    scrollArea->setAutoFillBackground(QPalette::Light);//设置窗体自动填充背景
    scrollArea->setBackgroundRole(QPalette::Highlight);  // 背景色
    scrollArea->setAlignment(Qt::AlignCenter);  // 居中对齐
    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn); //设置总是显示滚动条水平
    scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn); //设置总是显示滚动条竖直
 
  
scrollArea -> setWidget ( imageLabel );
    scrollArea->show();
 
  
 
  
}
 
  
ScopeWidget::~ScopeWidget()
{
 
  
}
 
  



 
 
  



 
  
       

    

 
  


 
  

效果图:

 
 

猜你喜欢

转载自blog.csdn.net/qq_36038987/article/details/80773340