Qt4 QRadioButton和QCheckBox用法示例[转]

初学Qt，简单示例QRadioButton和QCheckBox的用法。

mybuttonwindow.h

 1 #ifndef MYBUTTONWINDOW_H
 2 #define MYBUTTONWINDOW_H
 3 #include <QWidget>
 4 #include <QPushButton>
 5 #include <QGroupBox>
 6 #include <QRadioButton>
 7 #include <QCheckBox>
 8 #include <QLabel>
 9 class MyButtonWindow : public QWidget
10 {
11     Q_OBJECT
12 public:
13     explicit MyButtonWindow(QWidget *parent = 0);
14     void initButtons();
15     
16 signals:
17     
18 public slots:
19     void radioChange();
20     void checkChange();
21     
22 private:
23     QGroupBox *radioGroup;
24     QRadioButton *radio1;
25     QRadioButton *radio2;
26     QRadioButton *radio3;
27     QLabel *label11;
28     QLabel *label12;
29     QLabel *label13;
30     QLabel *label1;
31     QGroupBox *checkGroup;
32     QCheckBox *check1;
33     QCheckBox *check2;
34     QCheckBox *check3;
35     QLabel *label21;
36     QLabel *label22;
37     QLabel *label23;
38     QLabel *label2;
39 };
40 #endif // MYBUTTONWINDOW_H

mybuttonwindow.cpp

  1 #include "mybuttonwindow.h"
  2 #include <QPixmap>
  3 #include <QBitmap>
  4 
  5 MyButtonWindow::MyButtonWindow(QWidget *parent) :
  6     QWidget(parent)
  7 {
  8     setGeometry(100,100,230,190);
  9 
 10     // radio group
 11     radioGroup = new QGroupBox("Options 1", this);
 12     radioGroup->setGeometry(10,10,100,110);
 13 
 14     radio1 = new QRadioButton("Choice1", this);
 15     radio1->move(20,35);
 16     radio2 = new QRadioButton("Choice2", this);
 17     radio2->move(20,60);
 18     radio3 = new QRadioButton("Choice3", this);
 19     radio3->move(20,85);
 20 
 21     label1 = new QLabel("Option1 Result:", this);
 22     label1->setGeometry(10,130,100,20);
 23     label1->setAlignment(Qt::AlignRight);
 24 
 25     // check group
 26     checkGroup = new QGroupBox("Options 2", this);
 27     checkGroup->setGeometry(120,10,100,110);
 28 
 29     check1 = new QCheckBox("Choice1", this);
 30     check1->move(130,35);
 31     check2 = new QCheckBox("Choice2", this);
 32     check2->move(130,60);
 33     check3 = new QCheckBox("Choice3", this);
 34     check3->move(130,85);
 35 
 36     label2 = new QLabel("Option2 Result:", this);
 37     label2->setGeometry(10,160,100,20);
 38     label2->setAlignment(Qt::AlignRight);
 39 
 40     // init buttons
 41     initButtons();
 42 
 43     // signals and slots
 44     connect(radio1, SIGNAL(clicked(bool)), this, SLOT(radioChange()));
 45     connect(radio2, SIGNAL(clicked(bool)), this, SLOT(radioChange()));
 46     connect(radio3, SIGNAL(clicked(bool)), this, SLOT(radioChange()));
 47     connect(check1, SIGNAL(clicked()), this, SLOT(checkChange()));
 48     connect(check2, SIGNAL(clicked()), this, SLOT(checkChange()));
 49     connect(check3, SIGNAL(clicked()), this, SLOT(checkChange()));
 50 }
 51 
 52 void MyButtonWindow::initButtons()
 53 {
 54     QPixmap pixmap1(":/btn1_gray");
 55     QPixmap pixmap2(":/btn2_gray");
 56     QPixmap pixmap3(":/btn3_gray");
 57 
 58     label11 = new QLabel("", this);
 59     label11->setGeometry(120,129,18,19);
 60     label11->setPixmap(pixmap1);
 61     label11->resize(pixmap1.size());
 62 
 63     label12 = new QLabel("", this);
 64     label12->setGeometry(149,129,18,19);
 65     label12->setPixmap(pixmap2);
 66     label12->resize(pixmap2.size());
 67 
 68     label13 = new QLabel("", this);
 69     label13->setGeometry(178,129,18,19);
 70     label13->setPixmap(pixmap3);
 71     label13->resize(pixmap3.size());
 72 
 73     label21 = new QLabel("", this);
 74     label21->setGeometry(120,159,18,19);
 75     label21->setPixmap(pixmap1);
 76     label21->resize(pixmap1.size());
 77 
 78     label22 = new QLabel("", this);
 79     label22->setGeometry(149,159,18,19);
 80     label22->setPixmap(pixmap2);
 81     label22->resize(pixmap2.size());
 82 
 83     label23 = new QLabel("", this);
 84     label23->setGeometry(178,159,18,19);
 85     label23->setPixmap(pixmap3);
 86     label23->resize(pixmap3.size());
 87 }
 88 
 89 void MyButtonWindow::radioChange()
 90 {
 91     QPixmap pixmap1(":/btn1_gray");
 92     QPixmap pixmap2(":/btn2_gray");
 93     QPixmap pixmap3(":/btn3_gray");
 94     label11->setPixmap(pixmap1);
 95     label11->resize(pixmap1.size());
 96     label12->setPixmap(pixmap2);
 97     label12->resize(pixmap2.size());
 98     label13->setPixmap(pixmap3);
 99     label13->resize(pixmap3.size());
100 
101     QString url;
102     QLabel *label;
103     if (sender() == radio1)
104     {
105         url = ":/btn1_bright";
106         label = label11;
107     }
108     else if (sender() == radio2)
109     {
110         url = ":/btn2_bright";
111         label = label12;
112     }
113     else if (sender() == radio3)
114     {
115         url = ":/btn3_bright";
116         label = label13;
117     }
118 
119     QPixmap pixmap(url);
120     label->setPixmap(pixmap);
121     label->resize(pixmap.size());
122 }
123 
124 void MyButtonWindow::checkChange()
125 {
126     QString url;
127     QLabel *label;
128     if (sender() == check1)
129     {
130         url = check1->isChecked() ? ":/btn1_bright" : ":/btn1_gray";
131         label = label21;
132     }
133     else if (sender() == check2)
134     {
135         url = check2->isChecked() ? ":/btn2_bright" : ":/btn2_gray";
136         label = label22;
137     }
138     else if (sender() == check3)
139     {
140         url = check3->isChecked() ? ":/btn3_bright" : ":/btn3_gray";
141         label = label23;
142     }
143 
144     QPixmap pixmap(url);
145     label->setPixmap(pixmap);
146     label->resize(pixmap.size());
147 }

main.cpp

 1 #include <QApplication>
 2 #include <QTextCodec>
 3 #include "mybuttonwindow.h"
 4 
 5 int main(int argc, char *argv[])
 6 {
 7     QApplication a(argc, argv);
 8     QTextCodec::setCodecForTr(QTextCodec::codecForName("System"));  //消除乱码
 9 
10     MyButtonWindow buttonWindow;
11     buttonWindow.show();
12 
13     return a.exec();
14 }

运行结果示例：

转自：

http://blog.csdn.net/pigautumn/article/details/9017135