QT5-控件-QScrollArea-可以用於把一個窗口分割為多個-比如根據圖片大小顯示滾動條,
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QLabel>
#include <QPixmap>
#include <QImage>
#include <QScrollArea>
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(QWidget *parent = 0);
~MainWindow();
};
#endif // MAINWINDOW_H
#include "mainwindow.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
this->resize(800,600);
this->centralWidget();
QLabel* label = new QLabel(this);
QImage image("01.jpg");
label->setPixmap(QPixmap::fromImage(image));
QScrollArea* area = new QScrollArea(this);
area->setWidget(label);
area->setBackgroundRole(QPalette::Dark);
area->setGeometry(0,0,image.width()+100,image.height()-60);
}
MainWindow::~MainWindow()
{
}
#include "mainwindow.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}