Qt4 QRadioButton和QCheckBox用法示例

本文转载自这里

简单示例QRadioButton和QCheckBox的用法。

建立一个Qt Widgets Application

mybuttonwindow.h

#ifndef MYBUTTONWINDOW_H
#define MYBUTTONWINDOW_H
#include <QWidget>
#include <QPushButton>
#include <QGroupBox>
#include <QRadioButton>
#include <QCheckBox>
#include <QLabel>
class MyButtonWindow : public QWidget
{
    Q_OBJECT
public:
    explicit MyButtonWindow(QWidget *parent = 0);
    void initButtons();
    
signals:
    
public slots:
    void radioChange();
    void checkChange();
    
private:
    QGroupBox *radioGroup;
    QRadioButton *radio1;
    QRadioButton *radio2;
    QRadioButton *radio3;
    QLabel *label11;
    QLabel *label12;
    QLabel *label13;
    QLabel *label1;
    QGroupBox *checkGroup;
    QCheckBox *check1;
    QCheckBox *check2;
    QCheckBox *check3;
    QLabel *label21;
    QLabel *label22;
    QLabel *label23;
    QLabel *label2;
};
#endif // MYBUTTONWINDOW_H

mybuttonwindow.cpp

#include "mybuttonwindow.h"
#include <QPixmap>
#include <QBitmap>

MyButtonWindow::MyButtonWindow(QWidget *parent) :
    QWidget(parent)
{
    setGeometry(100,100,230,190);

    // radio group
    radioGroup = new QGroupBox("Options 1", this);
    radioGroup->setGeometry(10,10,100,110);

    radio1 = new QRadioButton("Choice1", this);
    radio1->move(20,35);
    radio2 = new QRadioButton("Choice2", this);
    radio2->move(20,60);
    radio3 = new QRadioButton("Choice3", this);
    radio3->move(20,85);

    label1 = new QLabel("Option1 Result:", this);
    label1->setGeometry(10,130,100,20);
    label1->setAlignment(Qt::AlignRight);

    // check group
    checkGroup = new QGroupBox("Options 2", this);
    checkGroup->setGeometry(120,10,100,110);

    check1 = new QCheckBox("Choice1", this);
    check1->move(130,35);
    check2 = new QCheckBox("Choice2", this);
    check2->move(130,60);
    check3 = new QCheckBox("Choice3", this);
    check3->move(130,85);

    label2 = new QLabel("Option2 Result:", this);
    label2->setGeometry(10,160,100,20);
    label2->setAlignment(Qt::AlignRight);

    // init buttons
    initButtons();

    // signals and slots
    connect(radio1, SIGNAL(clicked(bool)), this, SLOT(radioChange()));
    connect(radio2, SIGNAL(clicked(bool)), this, SLOT(radioChange()));
    connect(radio3, SIGNAL(clicked(bool)), this, SLOT(radioChange()));
    connect(check1, SIGNAL(clicked()), this, SLOT(checkChange()));
    connect(check2, SIGNAL(clicked()), this, SLOT(checkChange()));
    connect(check3, SIGNAL(clicked()), this, SLOT(checkChange()));
}

void MyButtonWindow::initButtons()
{
    QPixmap pixmap1(":/btn1_gray");
    QPixmap pixmap2(":/btn2_gray");
    QPixmap pixmap3(":/btn3_gray");

    label11 = new QLabel("", this);
    label11->setGeometry(120,129,18,19);
    label11->setPixmap(pixmap1);
    label11->resize(pixmap1.size());

    label12 = new QLabel("", this);
    label12->setGeometry(149,129,18,19);
    label12->setPixmap(pixmap2);
    label12->resize(pixmap2.size());

    label13 = new QLabel("", this);
    label13->setGeometry(178,129,18,19);
    label13->setPixmap(pixmap3);
    label13->resize(pixmap3.size());

    label21 = new QLabel("", this);
    label21->setGeometry(120,159,18,19);
    label21->setPixmap(pixmap1);
    label21->resize(pixmap1.size());

    label22 = new QLabel("", this);
    label22->setGeometry(149,159,18,19);
    label22->setPixmap(pixmap2);
    label22->resize(pixmap2.size());

    label23 = new QLabel("", this);
    label23->setGeometry(178,159,18,19);
    label23->setPixmap(pixmap3);
    label23->resize(pixmap3.size());
}

void MyButtonWindow::radioChange()
{
    QPixmap pixmap1(":/btn1_gray");
    QPixmap pixmap2(":/btn2_gray");
    QPixmap pixmap3(":/btn3_gray");
    label11->setPixmap(pixmap1);
    label11->resize(pixmap1.size());
    label12->setPixmap(pixmap2);
    label12->resize(pixmap2.size());
    label13->setPixmap(pixmap3);
    label13->resize(pixmap3.size());

    QString url;
    QLabel *label;
    if (sender() == radio1)
    {
        url = ":/btn1_bright";
        label = label11;
    }
    else if (sender() == radio2)
    {
        url = ":/btn2_bright";
        label = label12;
    }
    else if (sender() == radio3)
    {
        url = ":/btn3_bright";
        label = label13;
    }

    QPixmap pixmap(url);
    label->setPixmap(pixmap);
    label->resize(pixmap.size());
}

void MyButtonWindow::checkChange()
{
    QString url;
    QLabel *label;
    if (sender() == check1)
    {
        url = check1->isChecked() ? ":/btn1_bright" : ":/btn1_gray";
        label = label21;
    }
    else if (sender() == check2)
    {
        url = check2->isChecked() ? ":/btn2_bright" : ":/btn2_gray";
        label = label22;
    }
    else if (sender() == check3)
    {
        url = check3->isChecked() ? ":/btn3_bright" : ":/btn3_gray";
        label = label23;
    }

    QPixmap pixmap(url);
    label->setPixmap(pixmap);
    label->resize(pixmap.size());
}

main.cpp

#include <QApplication>
#include <QTextCodec>
#include "mybuttonwindow.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QTextCodec::setCodecForTr(QTextCodec::codecForName("System"));  //消除乱码

    MyButtonWindow buttonWindow;
    buttonWindow.show();

    return a.exec();
}

加载的小图标根据自己的需求添加。

本人测试的代码结果如下所示：

好吧，顺便附上我测试的代码