Qt中树形结构显示目录结构
第一种，直接用QTreeWidget,这种情况用到QDir类，用递归实现，代码如下
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void LoadFiles(QString path, QTreeWidget *treewidget, QTreeWidgetItem *item)
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{
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QDir dir(path);
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if (!dir.exists())
return;
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dir.setFilter(QDir::Dirs | QDir::Files | QDir::NoSymLinks);
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QFileInfoList
list = dir.entryInfoList();
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int size =
list.size();
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for (
int i =
0; i < size; i++) {
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QFileInfo info =
list.at(i);
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if (info.fileName() ==
"." || info.fileName() ==
"..")
continue;
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if (info.isDir()) {
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QTreeWidgetItem *fileItem =
new QTreeWidgetItem(QStringList() << info.fileName(),
0);
//0表示目录
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if (treewidget ==
NULL) item->addChild(fileItem);
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else treewidget->addTopLevelItem(fileItem);
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LoadFiles(info.filePath(),
NULL, fileItem);
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}
else {
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QTreeWidgetItem *fileItem =
new QTreeWidgetItem(QStringList() << info.fileName(),
1);
//1表示是文件
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if (treewidget ==
NULL) item->addChild(fileItem);
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else treewidget->addTopLevelItem(fileItem);
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}
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}
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}
第二种,用QTreeView + QDirModel，这种比较简单，代码量小
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QDirModel *model =
new QDirModel();
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ui.treeView->setModel(model);
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ui.treeView->setRootIndex(model->index(
"c:/"));
