Qt学习之路(40): QTreeWidget + 自己修改

工程代码： 40.rar  


豆子：http://devbean.blog.51cto.com/448512/262296

#ifndef TREEWIDGET_H
#define TREEWIDGET_H

#include <QtGui>

class TreeWidget : public QWidget
{
public:
    TreeWidget(); //构造函数

private:
    QTreeWidget *tree;
};

#endif // TREEWIDGET_H

TreeWidget::TreeWidget()
{
    tree = new QTreeWidget(this);
    tree->setColumnCount(2); //共几个 root根

    QStringList headers;  //添加 头信息
    headers<< "Name" << "Number";
    tree->setHeaderLabels(headers);

    QStringList rootTextList;
    rootTextList << "Root" << "0";
    QTreeWidgetItem *root = new QTreeWidgetItem(tree,rootTextList);

    QStringList leafTextList;
    leafTextList <<"Leaf 1" <<"1";
    QTreeWidgetItem *leaf = new QTreeWidgetItem(root,leafTextList);
    root->addChild(leaf);

    QStringList leaf2TextList;
    leaf2TextList << "Leaf 2" <<"2";
    QTreeWidgetItem *leaf2 = new QTreeWidgetItem(root,leaf2TextList);
    leaf2->setCheckState(0,Qt::Checked); //可选
    root->addChild(leaf2);

    QStringList rootTextListA;
    rootTextListA << "RootA" << "0";
    QTreeWidgetItem *rootA = new QTreeWidgetItem(tree,rootTextListA);

    QStringList leafTextListA;
    leafTextListA <<"LeafA 1" <<"1";
    QTreeWidgetItem *leafA = new QTreeWidgetItem(rootA,leafTextListA);
    root->addChild(leafA);

    QStringList leaf2TextListA;
    leaf2TextListA << "LeafA 2" <<"2";
    QTreeWidgetItem *leaf2A = new QTreeWidgetItem(rootA,leaf2TextListA);
    leaf2A->setCheckState(0,Qt::Checked); //可选
    rootA->addChild(leaf2A);

    QList<QTreeWidgetItem *>rootList;
    rootList << root;
    rootList << rootA;
    tree->insertTopLevelItems(0,rootList);


}