QT::QTableView的使用

QTableView采用的是类似MVC的内容与表现分离的设计模式

使用方法
[code lang="c"]
ModelEx model;
tableView->setModel(&model);
[/code]

[code lang="c"]
#ifndef MODELEX_H
#define MODELEX_H

#include <QAbstractTableModel>
#include <QVector>
#include <QMap>
#include <QStringList>

class ModelEx : public QAbstractTableModel
{
Q_OBJECT
public:
explicit ModelEx(QObject *parent = 0);
virtual int rowCount(const QModelIndex &parent=QModelIndex()) const;
virtual int columnCount(const QModelIndex &parent=QModelIndex()) const;
virtual QVariant data(const QModelIndex &index, int role) const;
virtual QVariant headerData(int section, Qt::Orientation orientation, int role) const;

signals:
public slots:
private:
QVector<short> army;
QVector<short> weaponType;
QMap<short,QString> armyMap;
QMap<short,QString> weaponTypeMap;
QStringList weapon;
QStringList header;
void populateModel();
};
#endif // MODELEX_H

[code lang="c"]
#include "modelex.h"

ModelEx::ModelEx(QObject *parent) :
QAbstractTableModel(parent)
{
armyMap[1]=tr("空军");
armyMap[2]=tr("海军");
armyMap[3]=tr("陆军");
armyMap[4]=tr("海军陆战队");
weaponTypeMap[1]=tr("轰炸机");
weaponTypeMap[2]=tr("战斗机");
weaponTypeMap[3]=tr("航空母舰");
weaponTypeMap[4]=tr("驱逐舰");
weaponTypeMap[5]=tr("直升机");
weaponTypeMap[6]=tr("坦克");
header<<tr("军种")<<tr("种类")<<tr("武器");
army<<1<<2<<3<<4<<2<<4<<3<<1;
weaponType<<1<<3<<5<<7<<4<<8<<6<<2;
weapon<<tr("B-2")<<tr("尼米兹级")<<
("阿帕奇")<<tr("黄蜂级")<<
tr("阿利伯克级")<<tr("AAAV")<<
tr("M1A1")<<tr("F-22");
}

int ModelEx::columnCount(const QModelIndex &parent) const
{
return 3;
}

int ModelEx::rowCount(const QModelIndex &parent) const
{
return army.size();
}

QVariant ModelEx::data(const QModelIndex &index, int role) const
{
if(!index.isValid())
return QVariant();

if(role==Qt::DisplayRole)
{
switch(index.column())
{
case 0:
return armyMap[army[index.row()]];
break;
case 1:
return weaponTypeMap[weaponType[index.row()]];
break;
case 2:
return weapon[index.row()];
default:
return QVariant();
}
}
return QVariant();
}

QVariant ModelEx::headerData(int section, Qt::Orientation orientation, int role) const
{
if(role==Qt::DisplayRole&&orientation==Qt::Horizontal)
return header[section];
return QAbstractTableModel::headerData(section,orientation,role);
}
[/code]

查看原文：http://blog.wxameng.com/qt-qtableviewsample/