QTreeWidget簡單例子

QTreeWidget是蠻符合可以讓使用客制化選擇的元件~~
裡面可以包含icon的設定，
子Item的設定
勾選的選項
當有需要的時候，Scroll會自動出現

#include <QApplication>
#include <QTreeWidget>

int
main (
  int argc,
  char *argv[]
  )
{
  QApplication app (argc, argv);

  //
  // Create a TreeWidget for store TreeWidgetItem
  //
  QTreeWidget *TreeWidget = new QTreeWidget;

  //
  // Set the title for QTreeWidget
  //
  QStringList ColumnTitle;
  ColumnTitle.append ("Name");
  ColumnTitle.append ("Comment");
  TreeWidget->setHeaderLabels (ColumnTitle);

  //
  // Add the first item in the root of QTreeWidget
  //
  QStringList fileColumn;
  fileColumn.append ("File Name");
  fileColumn.append ("Comment for File Name");
  QTreeWidgetItem *ParentItem = new QTreeWidgetItem (fileColumn);
  ParentItem->setCheckState (0, Qt::PartiallyChecked);
  TreeWidget->addTopLevelItem (ParentItem);

  //
  // Add the sub item of ParentItem QTreeWidget
  //
  QStringList ChildFileColumn;
  ChildFileColumn.append ("Child Name");
  ChildFileColumn.append ("Commet for Child Name");
  QTreeWidgetItem *ChildItem = new QTreeWidgetItem (ChildFileColumn);
  ChildItem->setCheckState (0, Qt::Checked);
  ParentItem->addChild (ChildItem);

  //
  // Add the second sub item of ParentItem QTreeWidget
  //
  QStringList ChildFileColumn2;
  ChildFileColumn2.append ("Child Name2");
  ChildFileColumn2.append ("Comment for Child Name2");
  QTreeWidgetItem *ChildItem2 = new QTreeWidgetItem (ChildFileColumn2);
  ChildItem2->setCheckState (0, Qt::Unchecked);
  ParentItem->addChild (ChildItem2);

  //
  // Set another root item into the QTreeWidget
  //
  QStringList AnotherfileColumn;
  AnotherfileColumn.append ("Another Name");
  AnotherfileColumn.append ("Comment for Another Name");
  QTreeWidgetItem *AnotherItem = new QTreeWidgetItem (AnotherfileColumn);
  AnotherItem->setCheckState (0, Qt::Unchecked);
  TreeWidget->addTopLevelItem (AnotherItem);

  TreeWidget->show ();

  return app.exec ();
}

內容小於顯示區域，則不會出現ScrollBar


若內容大於要顯示的區域，則會出現ScrollBar


參考資料：
Qt4 Gossip: QTreeWidget 與 QTreeWidgetItem
QTreeWidget Class Reference
QTreeWidgetItem Class Reference