QT 樹狀表 多選
void adduserdlg::on_treeWidget_itemChanged(QTreeWidgetItem* item, int column)
{
qDebug("%s::%d::%s", __FILE__, __LINE__,__FUNCTION__);
if(item->checkState(0) == Qt::Unchecked)
{
int count = item->childCount();
if( item->parent())
{
disconnect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*,int)), this, SLOT(on_treeWidget_itemChanged(QTreeWidgetItem*,int)));
item->parent()->setCheckState(0, Qt::Unchecked);
if(item->parent()->parent())
{
item->parent()->parent()->setCheckState(0, Qt::Unchecked);
}
connect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*,int)), this, SLOT(on_treeWidget_itemChanged(QTreeWidgetItem*,int)));
}
for(int i=0; i< count; i++)
{
item->child(i)->setCheckState(0, Qt::Unchecked);
int subcount = item->child(i)->childCount();
for(int j =0; j< subcount; j++)
{
item->child(i)->child(j)->setCheckState(0, Qt::Unchecked);
}
}
}
else
{
disconnect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*,int)), this, SLOT(on_treeWidget_itemChanged(QTreeWidgetItem*,int)));
int count = item->childCount();
for(int i=0; i< count; i++)
{
item->child(i)->setCheckState(0, Qt::Checked) ;
int subcount = item->child(i)->childCount();
for(int j =0; j< subcount; j++)
{
item->child(i)->child(j)->setCheckState(0, Qt::Checked);
}
}
//判定父節點
if(item->parent())
{
setParentChecked(item->parent());
}
connect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*,int)), this, SLOT(on_treeWidget_itemChanged(QTreeWidgetItem*,int)));
}
}
void adduserdlg::setParentChecked(QTreeWidgetItem *parentitem)
{
int count = parentitem->childCount();
for(int i = 0; i< count; i++)
{
if(parentitem->child(i)->checkState(0) != Qt::Checked)
{
return;
}
}
parentitem->setCheckState(0, Qt::Checked);
if(parentitem->parent())
{
setParentChecked(parentitem->parent());
}
}
{
qDebug("%s::%d::%s", __FILE__, __LINE__,__FUNCTION__);
if(item->checkState(0) == Qt::Unchecked)
{
int count = item->childCount();
if( item->parent())
{
disconnect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*,int)), this, SLOT(on_treeWidget_itemChanged(QTreeWidgetItem*,int)));
item->parent()->setCheckState(0, Qt::Unchecked);
if(item->parent()->parent())
{
item->parent()->parent()->setCheckState(0, Qt::Unchecked);
}
connect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*,int)), this, SLOT(on_treeWidget_itemChanged(QTreeWidgetItem*,int)));
}
for(int i=0; i< count; i++)
{
item->child(i)->setCheckState(0, Qt::Unchecked);
int subcount = item->child(i)->childCount();
for(int j =0; j< subcount; j++)
{
item->child(i)->child(j)->setCheckState(0, Qt::Unchecked);
}
}
}
else
{
disconnect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*,int)), this, SLOT(on_treeWidget_itemChanged(QTreeWidgetItem*,int)));
int count = item->childCount();
for(int i=0; i< count; i++)
{
item->child(i)->setCheckState(0, Qt::Checked) ;
int subcount = item->child(i)->childCount();
for(int j =0; j< subcount; j++)
{
item->child(i)->child(j)->setCheckState(0, Qt::Checked);
}
}
//判定父節點
if(item->parent())
{
setParentChecked(item->parent());
}
connect(ui->treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*,int)), this, SLOT(on_treeWidget_itemChanged(QTreeWidgetItem*,int)));
}
}
void adduserdlg::setParentChecked(QTreeWidgetItem *parentitem)
{
int count = parentitem->childCount();
for(int i = 0; i< count; i++)
{
if(parentitem->child(i)->checkState(0) != Qt::Checked)
{
return;
}
}
parentitem->setCheckState(0, Qt::Checked);
if(parentitem->parent())
{
setParentChecked(parentitem->parent());
}
}
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