Qt学习六：控件三：单选按钮、复选框、列表控件、树控件

这是第三波控件描述；

首先，给出qtButton.h的程序如下：

#ifndef QTBUTTON_H
#define QTBUTTON_H

#include <QtWidgets/QMainWindow>
#include "ui_qtbutton.h"

//-------------------------------
#include<qradiobutton.h>
#include<qlabel.h>

#include<qcheckbox.h>

#include<qlistview.h>
#include<qstringlistmodel.h>//数据模型类

#include<qtreeview.h>
#include<qstandarditemmodel.h>

class qtButton : public QMainWindow
{
Q_OBJECT

public:
qtButton(QWidget *parent = 0);
~qtButton();

private:
Ui::qtButtonClass ui;

//---------------------------------
QRadioButton *radioM;
QRadioButton *radioW;
QLabel *label;

QCheckBox *checkBox01;
QCheckBox *checkBox02;
QCheckBox *checkBox03;

QLabel *label02;

QListView *listView;
QStringListModel *model;

QTreeView *treeView;
QStandardItemModel *standardModel;

private slots:
//---------------------------------------
void radioChange();

void checkChange();
};

#endif // QTBUTTON_H

其次，再给出qtButton.cpp中的程序：

#include "qtbutton.h"

qtButton::qtButton(QWidget *parent)
: QMainWindow(parent)
{
ui.setupUi(this);

//----------------RadioButton---------------
radioM = new QRadioButton(this);
radioW = new QRadioButton(this);
label = new QLabel(this);

radioM -> setGeometry(QRect(50, 50, 50, 50));
radioW->setGeometry(QRect(100, 50, 50, 50));
label->setGeometry(QRect(50, 100, 100, 25));

radioM->setText("Man");
radioW->setText("Woman");

//default values;
radioM->setChecked(true);
label->setText("Man");

connect(radioM, SIGNAL(clicked()), this, SLOT(radioChange()));
connect(radioW, SIGNAL(clicked()), this, SLOT(radioChange()));

//---------------CheckBox------------
checkBox01 = new QCheckBox(this);
checkBox02 = new QCheckBox(this);
checkBox03 = new QCheckBox(this);

label02 = new QLabel(this);

checkBox01->setGeometry(QRect(50, 150, 50, 50));
checkBox02->setGeometry(QRect(100, 150, 100, 50));
checkBox03->setGeometry(QRect(170, 150, 100, 50));

label02->setGeometry(QRect(50, 200, 200, 30));
label02->setText("initial");

checkBox01->setText("Math");
checkBox02->setText("Chinese");
checkBox03->setText("Geometry");

connect(checkBox01, SIGNAL(clicked(bool)), this, SLOT(checkChange()));
connect(checkBox02, SIGNAL(clicked(bool)), this, SLOT(checkChange()));
connect(checkBox03, SIGNAL(clicked(bool)), this, SLOT(checkChange()));

//----------ListView---------------
listView = new QListView(this);
listView->setGeometry(50, 250, 130, 100);

QStringList string;
string << "Math" << "Lauguage" << "Foreign Language" << "GeoMetry";
model = new QStringListModel(string);

listView->setModel(model);

//-----------QTreeView----------------------
treeView = new QTreeView(this);
treeView->setGeometry(QRect(200, 250, 300, 200));

standardModel = new QStandardItemModel(3, 2);
standardModel->setHeaderData(0, Qt::Horizontal, "The First List");
standardModel->setHeaderData(1, Qt::Horizontal, "The Second List");

QStandardItem *item01 = new QStandardItem("Math");
item01->setIcon(QIcon(":/new/profix1/folder"));

QStandardItem *item02 = new QStandardItem("Chinese");
item02->setIcon(QIcon(":/new/profix1/folder"));

QStandardItem *item03 = new QStandardItem("Foreign Language");
item03->setIcon(QIcon(":/new/profix1/folder"));

//子项
QStandardItem *item04 = new QStandardItem("Foreign Language A");
item04->setIcon(QIcon(":/new/profix1/file"));
item03->appendRow(item04);

standardModel->setItem(0, 0, item01);
standardModel->setItem(1, 0, item02);
standardModel->setItem(2, 0, item03);

treeView->setModel(standardModel);
}

qtButton::~qtButton()
{

}
//------------RadioButton------------------------
void qtButton::radioChange()
{
if (sender() == radioM)
{
label->setText("Man");

}
else if (sender() == radioW)
{
label->setText("Woman");
}
}

QString str;
void qtButton::checkChange()
{

if (sender() == checkBox01)
{
if (checkBox01->checkState() == Qt::Checked)
{
str += "Math";
}
else
{
str = str.replace(QString("Math"), QString(""));
}

}

else if (sender() == checkBox02)
{
if (checkBox02->checkState() == Qt::Checked)
{
str += " Chinese";
}
else
{
str = str.replace(QString("Chinese"), QString(""));
}

}

else if (sender() == checkBox03)
{
if (checkBox03->checkState() == Qt::Checked)
{
str += " Geometry";
}
else
{
str = str.replace(QString("Geometry"), QString(""));
}

}

label02->setText(str);
}

程序运行结果如下：