lesson6-表-白红宇

一、表

1、QTableWidget

QTableWidget是Qt中最常见的显示数据表格的控件，它是QTableView的子类。它必须使用标准的数据模型，每一个单元格必须QTableWidgetItem对象实现。

2、常用方法

1）、构造函数，创建指定行和列的表

QTableWidget ( int rows, int columns, QWidget * parent = 0 )

2）、普通函数

void setHorizontalHeaderItem ( int column, QTableWidgetItem * item )

void setHorizontalHeaderLabels ( const QStringList & labels )

void setVerticalHeaderItem ( int row, QTableWidgetItem * item )

void setVerticalHeaderLabels ( const QStringList & labels )

setItem ( int row, int column, QTableWidgetItem * item )

void setCellWidget ( int row, int column, QWidget * widget )

int rowCount ()

int columnCount ()

3）、槽函数

void insertColumn ( int column )

void insertRow ( int row )

void removeColumn ( int column )

void removeRow ( int row )

4）、信号

void cellChanged ( int row, int column )

void cellClicked ( int row, int column )

void cellDoubleClicked ( int row, int column )

void itemChanged ( QTableWidgetItem * item )

void itemClicked ( QTableWidgetItem * item )

void itemDoubleClicked ( QTableWidgetItem * item )

二、单元格

1、QTableWidgetItem

QTableWidget表格的建立必须依靠单元格，整个表格都是由单元格建立起来的

2、常用方法

1）、构造函数，创建指定行和列的表

QTableWidgetItem ( const QString & text, int type = Type )

QTableWidgetItem ( const QIcon & icon, const QString & text, int type = Type )

2）、普通函数

void setBackground ( const QBrush & brush )

void setText ( const QString & text )

int textAlignment () const

void setIcon ( const QIcon & icon )

三、实例

1、头文件

点击(此处)折叠或打开

#ifndef TABLEWIDGET_H

#define TABLEWIDGET_H

#include QtGui>

class tableWidget : public QDialog

{

Q_OBJECT

public:

tableWidget();

private:

QPushButton *addRowBtn, *addColBtn, *removeRowBtn, *removeColBtn;

QTableWidget *table;

public slots:

void addRow();

void addCol();

void removeRow();

void removeCol();

};

#endif

2、cpp

点击(此处)折叠或打开

#include "tableWidget.h"

tableWidget::tableWidget()

{

//控件初始化

addRowBtn = new QPushButton("增加行");

addColBtn = new QPushButton("增加列");

removeRowBtn = new QPushButton("删除行");

removeColBtn = new QPushButton("删除列");

table = new QTableWidget(2,3);

//布局

QVBoxLayout *vLay = new QVBoxLayout();

vLay->addWidget(addRowBtn);

vLay->addWidget(addColBtn);

vLay->addWidget(removeRowBtn);

vLay->addWidget(removeColBtn);

QHBoxLayout *hLay = new QHBoxLayout();

hLay->addWidget(table);

hLay->addLayout(vLay);

setLayout(hLay);

//绑定信号和槽函数

connect(addRowBtn, SIGNAL(clicked()), this, SLOT(addRow()));

connect(addColBtn, SIGNAL(clicked()), this, SLOT(addCol()));

connect(removeRowBtn, SIGNAL(clicked()), this, SLOT(removeRow()));

connect(removeColBtn, SIGNAL(clicked()), this, SLOT(removeCol()));

//设置表头

QStringList head;

head"姓名""年龄""性别";

table->setHorizontalHeaderLabels(head);

//设置单元格

table->setItem(0, 0, new QTableWidgetItem("魏杰"));

table->setItem(0, 1, new QTableWidgetItem("30"));

QComboBox *com1 = new QComboBox();

QComboBox *com2 = new QComboBox();

QStringList sex;

sex"男""女";

com1->addItems(sex);

com2->addItems(sex);

table->setCellWidget(0, 2, com1);

table->setCellWidget(1, 2, com2);

resize(800, 800);

setWindowTitle("hehe");

}

void tableWidget::addRow()

{

int num = table->rowCount();

table->insertRow(num);

}

void tableWidget::addCol()

{

int num = table->columnCount();

table->insertColumn(num);

}

void tableWidget::removeRow()

{

int num = table->rowCount();

table->removeRow(num-1);

}

void tableWidget::removeCol()

{

int num = table->columnCount();

table->removeColumn(num-1);

}