一 Group Box:组合框

#include "widget.h"


#include<QGroupBox>
#include<QRadioButton>
#include<QPushButton>
#include<QVBoxLayout>//可以在水平方向和垂直方向进行排列的控件，QHBoxLayout/QVBoxLayout
#include <QGridLayout>
#include <QCheckBox>

#include <QMenu>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
{

    //组合框1：gpb_1
    QGroupBox *gpb_1 = new QGroupBox("单选按钮组1");
    QRadioButton * rbtn_1 = new QRadioButton("RadioButton1");
    QRadioButton * rbtn_2 = new QRadioButton("RadioButton2");
    QRadioButton * rbtn_3 = new QRadioButton("RadioButton3");

    QVBoxLayout *vbly1 = new QVBoxLayout;
    vbly1->addWidget(rbtn_1);
    vbly1->addWidget(rbtn_2);
    vbly1->addWidget(rbtn_3);
    gpb_1->setLayout(vbly1);


    //组合框2：gpb_1
    QGroupBox *gpb_2 = new QGroupBox("复选按钮组2");
    //gpb_2->setCheckable(true);
    QCheckBox *cbx1 = new QCheckBox("checkbox1");
    QCheckBox *cbx2 = new QCheckBox("checkbox2");
    QCheckBox *cbx3 = new QCheckBox("checkbox3");

    //全选，半选，未选
    cbx2->setTristate(true);//设置支持半选状态，默认不支持班选态
    cbx2->setChecked(true);

    QVBoxLayout *vbly2 = new QVBoxLayout;
    vbly2->addWidget(cbx1);
    vbly2->addWidget(cbx2);
    vbly2->addWidget(cbx3);
    gpb_2->setLayout(vbly2);

    //组合框3：gpb_3
    QGroupBox *gpb_3 = new QGroupBox("单选按钮和复选按钮组3");
    gpb_3->setCheckable(true);
    QRadioButton * rbtn_31 = new QRadioButton("RadioButton31");
    QRadioButton * rbtn_32 = new QRadioButton("RadioButton32");
    QRadioButton * rbtn_33 = new QRadioButton("RadioButton33");
    QCheckBox *cbx4 = new QCheckBox("checkbox4");
    cbx4->setCheckable(true);
    QVBoxLayout *vbly3 = new QVBoxLayout;

    vbly3->addWidget(rbtn_31);
    vbly3->addWidget(rbtn_32);
    vbly3->addWidget(rbtn_33);
    vbly3->addWidget(cbx4);
    gpb_3->setLayout(vbly3);

     //组合框4：gpb_4
    QGroupBox *gpb_4 = new QGroupBox("综合按钮组3");
    gpb_4->setCheckable(true);
    QPushButton * pbtn_4 = new QPushButton("QPushButton4");
    QPushButton * pbtn_5 = new QPushButton("QPushButton5");
    pbtn_5->setCheckable(true);
    QPushButton * pbtn_6 = new QPushButton("QPushButton6");



    //命令按钮添加子菜单
    QMenu *mu = new QMenu(this);
    mu->addAction("King");
    mu->addAction("Darren");
    mu->addAction("Mark");
    mu->addAction("Vico");
    pbtn_6->setMenu(mu);

    QVBoxLayout *vbly4 = new QVBoxLayout;
    vbly4->addWidget(pbtn_4);
    vbly4->addWidget(pbtn_5);
    vbly4->addWidget(pbtn_6);
    gpb_4->setLayout(vbly4);



    QGridLayout *gdlyout = new QGridLayout;
    gdlyout->addWidget(gpb_1,0,0,1,1);
    gdlyout->addWidget(gpb_2,0,1,1,1);
    gdlyout->addWidget(gpb_3,1,0,1,1);
    gdlyout->addWidget(gpb_4,1,1,1,1);

    this->setLayout(gdlyout);
}

Widget::~Widget()
{
}

 

二 Scroll Area:滚动区域。

#include "widget.h"

#include <QApplication>


#include <QLabel>
#include <QScrollArea>
#include <QGridLayout>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.resize(300,200);
    /*
     * QScrollArea当中有很多功能继承来自于QAbstractScrollArea
     * 滚动条外观是否漂亮取决于当前滚动条策略，有时间大家可以研究一下，查官网
     *
    */
    QLabel *qljpg =  new QLabel;
    qljpg->setScaledContents(true);
    QImage imagejpg(":/new/prefix1/Saved Pictures/02.jpg");
    qljpg->setPixmap(QPixmap::fromImage(imagejpg));

    QScrollArea *sArea = new QScrollArea;

    //根据窗口比例显示出来
    //sArea->setWidgetResizable(true);

    //居中
    sArea->setAlignment(Qt::AlignCenter);

    sArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
    sArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

    sArea->setWidget(qljpg);
    QGridLayout *glayout = new QGridLayout;
    glayout->addWidget(sArea);

    w.setLayout(glayout);


    w.show();
    return a.exec();
}

三Tab Widget:标签小部件。