I have a qtablewidget with one column with a widget and others with data. The only column with widget is shown and all other columns are hidden.
foreach (BillHeader *billHeader, billHeaderList)
{
m_pBillTable->insertRow(i);
itemWidget = new LookupItem;
itemWidget->setImage(1);
...
m_pBillTable->setCellWidget(i, 0, itemWidget);
tableItem = new QTableWidgetItem(billHeader->billNumber);
tableItem->setTextAlignment(Qt::AlignCenter);
m_pBillTable->setItem(i, 1, tableItem);
...
m_pBillTable->hideColumn(1);
...
I have a signal slot connected as below:
connect(m_pOkButton, SIGNAL(clicked()), this, SLOT(handleOkClick()));
when ok button click i try to get the selected item and get data from the widget set to it
void OrderLookup::handleOkClick()
{
qDebug()<<Q_FUNC_INFO<<"Invoked";
QList<QTableWidgetItem*> itemList = m_pBillTable->selectedItems();
qDebug()<<Q_FUNC_INFO<<itemList.count();
if (!itemList.isEmpty())
{
int row = itemList.at(0)->row();
qDebug()<<Q_FUNC_INFO<<row;
LookupItem *item = (LookupItem*)m_pBillTable->cellWidget(row, 0);
if (NULL != item)
{
QString billNumber = item->getBillNumber();
emit orderLookupComplete(billNumber);
accept();
}
}
qDebug()<<Q_FUNC_INFO<<"Exits";
}
But i am getting the list count as zero.
The row is getting selected and gets highlighted.
I’ve set some properties to table widget as below:
m_pBillTable->setEditTriggers(QAbstractItemView::NoEditTriggers);
m_pBillTable->setSelectionBehavior(QAbstractItemView::SelectRows);
m_pBillTable->setSelectionMode(QAbstractItemView::SingleSelection);
m_pBillTable->setFocusPolicy(Qt::NoFocus);
Please can someone help me to know why list count is empty..
The issue got solved ..
QItemSelectionModel *itemModel = m_pBillTable->selectionModel();
QModelIndexList indexList = itemModel->selectedRows();
qDebug()<<Q_FUNC_INFO<<"IndexList Count"<<indexList.count();
if (!indexList.isEmpty())
{
int row = indexList.at(0).row();
Related
I have a TableView that displays the information contained in a QSortFilterProxyModel (whose model is a QAbstractTableModel)
Is there any way to fix/freeze in the TableView's top all rows with a specific property set to true, while maintaining filter and sorting for the other rows?
To put a specific row always on the tableview's top, I added the following logic to the QSortFilterProxyModel's lessThan method:
// Get left and right row
int leftRow = left.row();
int rightRow = right.row();
// Get specific data from left row
QModelIndex leftIndex = sourceModel()->index(leftRow, SPECIFIC_DATA_INDEX);
QString leftProperty = sourceModel()->data(leftIndex).toString();
// Get specific data from right row
QModelIndex rightIndex = sourceModel()->index(rightRow, SPECIFIC_DATA_INDEX);
QString rightProperty = sourceModel()->data(rightIndex).toString();
if(leftProperty .compare("Invalid") == 0) // put left on top if it has a specific property
if(sortOrder() == Qt::AscendingOrder) {
return true;
} else {
return false;
}
} else if(rightProperty .compare("Invalid") == 0) { // put right on top if it has a specific property
if(sortOrder() == Qt::AscendingOrder) {
return false;
} else {
return true;
}
}
I currently have two tableviews in one screen, which results in both TableViews have rows which the user can select.
Now I want only one row to be selected at the same time (doesn't matter which TableView it is selected from). I was thinking about some kind of listener which deselects the other row when a row is selected. This is my initial setup:
Step 1
Search for a way to bind a method to the selection of a row (there is not something like tableview.setOnRowSelected(method))
Step 2
Create the method which acts like a kind of listener: when a row is selected, deselect the other row (I know how to do this part)
Class1 selectedObject1 = (Class1)tableview1.getSelectionModel().getSelectedItem();
Class2 selectedObject2 = (Class2)tableview2.getSelectionModel().getSelectedItem();
if(selectedObject1 != null && selectedObject2 != null) {
tableview1.getSelectionModel().clearSelection();
}
So, step one is the problem. I was thinking of an observable list on which a listener can be created, and then add the selected row to the list. When this happens, the listener can call the method.
Anyone any clue how to make this?
Any help is greatly appreciated.
The selectedItem in the selection model is an observable property, so you should be able to achieve this with:
tableview1.getSelectionModel().selectedItemProperty().addListener((obs, oldSelection, newSelection) -> {
if (newSelection != null) {
tableview2.getSelectionModel().clearSelection();
}
});
tableview2.getSelectionModel().selectedItemProperty().addListener((obs, oldSelection, newSelection) -> {
if (newSelection != null) {
tableview1.getSelectionModel().clearSelection();
}
});
My solution would be creating custom cell factory for table and set it for each table columns.
Callback<TableColumn<..., ...>, TableCell<..., ...>> value = param -> {
TextFieldTableCell cell = new TextFieldTableCell<>();
cell.addEventFilter(MouseEvent.MOUSE_CLICKED, event -> {
//your code
}
);
return cell;
};
packageName.setCellFactory(value);
table1.column1.setCellFactory();
table2.column1.setCellFactory();
...
I use it for deleting the chosen row.
public void ButtonClicked()
{
ObservableList<Names> row , allRows;
allRows = table.getItems();
row = table.getSelectionModel().getSelectedItems();
row.forEach(allRows::remove);
}
This question helped me but during experiment in javafx and jfoenix this also works for me.
deleteSingle.addEventHandler(MouseEvent.MOUSE_CLICKED, (e) -> {
StringProperty selectedItem = table.getSelectionModel().getSelectedItem().getValue().link1;
System.out.println("That is selected item : "+selectedItem);
if (selectedItem.equals(null)) {
System.out.println(" No item selected");
} else {
System.out.println("Index to be deleted:" + selectedItem.getValue());
//Here was my database data retrieving and selectd
// item deleted and then table refresh
table.refresh();
return;
}
});
In case you need not only the row, but the x|y position of the table cell, do this:
table.getFocusModel().focusedCellProperty().addListener(
new ChangeListener<TablePosition>() {
#Override
public void changed(ObservableValue<? extends TablePosition> observable,
TablePosition oldPos, TablePosition pos) {
int row = pos.getRow();
int column = pos.getColumn();
String selectedValue = "";
if (table.getItems().size() > row
&& table.getItems().get(row).size() > column) {
selectedValue = table.getItems().get(row).get(column);
}
label.setText(selectedValue);
}
});
In this example, I am using a "classic" TableView with List<String> as column model. And, of course, that label is just an example from my code.
What i want is that if i enter an ID in the textbox and then press enter,then if the ID is present ,then it gets displayed on the table the valuesof the table are inserted with the help of map in another window from which this window Box1 is opened as map.So as far as i have an idea,we have to run find command of map and then using if loop if that entered value in textbox is presentthen will display it in the same way as dummy data is displayed.
code used
Box1::Box1(QWidget *parent)
:QDialog(parent)
{
searchgroup = new QGroupBox(tr("Data Search"));
QHBoxLayout *layout2 = new QHBoxLayout;
text = new QLineEdit(this);
searchh = new QLabel(tr("&Enter ID:"));
searchh->setBuddy(text);
layout2->addWidget(searchh);
layout2->addWidget(text);
searchgroup->setLayout(layout2);
tableegroup = new QGroupBox(tr("Searched Data"));
QVBoxLayout *layout1 = new QVBoxLayout;
tablee = new QTableView(this);
mode1 = new QStandardItemModel(1,2,this);
mode1->setHorizontalHeaderItem(0, new QStandardItem(QString("ID")));
mode1->setHorizontalHeaderItem(1, new QStandardItem(QString("DATA")));
map<int,QString>::iterator itt;
itt=dataa.begin();
for (int colu = 0; colu < 2; colu++)
{
item1 = new QStandardItem();
if (colu == 0)
{
item1->setData(((*itt).first), Qt::DisplayRole);
mode1->setItem(0,0,item1);
} else
{
item1->setData(((*itt).second), Qt::DisplayRole);
mode1->setItem(0,1,item1);
}
}
tablee->setModel(mode1);
layout1->addWidget(tablee);
tableegroup->setLayout(layout1);
QVBoxLayout *mainlayout1 = new QVBoxLayout;
//mainlayout1->addWidget(menubarr);
mainlayout1->addWidget(searchgroup);
mainlayout1->addWidget(tableegroup);
setLayout(mainlayout1);
}
Thanks for any help in advance
EDIT
what i want
void Box1::textReturn()
{
bool ok;
int id = text->text().toInt(&ok);
// map<int,QString>::iterator itt;
if (ok && dataa.contains(id))
{
// add row (id, data[id] to table
}
else
{
QMessageBox msgbox = new QMessagebox();
msgbox->setWindowTitle("Alert");
msgbox->setText("No such ID present!");
msgbox->show();
}
}
EDIT2
void Box1::textReturn()
{
int id = (text->text()).toInt();
map<int,QString>::iterator itt;
itt = dataa.find(id);
if(itt != dataa.end()) //returns 1 if we found something
{
QList<QStandardItem *> items;
items << new QStandardItem(QString("%1").arg(id));
items << new QStandardItem((*itt).second);
mode1->appendRow(items);
tablee->update();
}
else
{
QMessageBox *msgbox = new QMessageBox();
msgbox->setWindowTitle("Alert");
msgbox->setText("INVALID ID ENTERED");
msgbox->show();
}
}
As #KCiebiera said, you have to do this connection
connect(text, SIGNAL(returnPressed()), this, SLOT(textReturnPressed());
Then you need to find your key in the table using
QList<QStandardItem *> QStandardItemModel::findItems ( const QString & text,
Qt::MatchFlags flags = Qt::MatchExactly, int column = 0 )
As you have map, so elements shouldn't repeat, your QList should be NULL or contains just one element. When u'll get your element (as QStandardItem) you just need to invoke
tablee->showColumn ( int column )
tablee->showRow ( int row )
Where your column will be QStandarItem->column() and row QStandardItem->row();
EDIT
void Box1::textReturnPressed()
{
int id = (test->text()).toInt();
map<int, string>::iterator it;
it = dataa.find(id);
if(it != dataa.end()) //we found something
{
QList<QStandardItem *> items;
items << new QStandardItem(QString("%1").arg(id));
items << new QStandardItem((*it).second);
mode1->appendRow(items);
}
else
QMessageBox::information(this, "Info", "ID not found!", QMessageBox::ok);
}
Something like this;
As far as I understand your question. You need to create a new slot in the Box1 class. Let's call it textReturnPressed(). Then you have to connect it to returnPressed() signal from text
connect(text, SIGNAL(returnPressed()), this, SLOT(textReturnPressed());
and here is textReturnPressed (I hope it compiles)
void textReturnPressed()
{
bool ok;
int id = text->text().toInt(&ok);
if (ok && dataa.count(id) > 0) {
QList<QStandardItem *> items;
items << new QStandardItem(QString("%1").arg(id));
items << new QStandardItem(dataa[id]);
mode1.appendRow(items);
}
}
You don't need an iterator to check if an item is in the map. Just call map.count() function.
I have addFile function in my TableModel class which inserts a new record at the end.
void TableModel::addFile(const QString &path)
{
beginInsertRows(QModelIndex(), list.size(),list.size());
TableItem item;
item.filename = path;
QFile file(path);
item.size = file.size();
item.status = StatusNew;
list << item;
endInsertRows();
}
This function works fine but instead of appending record at the end I would like to insert it at the top. Any pointers on how to update my existing function ?
I have already tried some combinations but there is no Luck.
There are two things that you need to do. First is to adjust the call to beginInsertRows. Because it is here that we are telling the model that we are adding rows, where they will go, and how many we are adding. Here is the method description:
void QAbstractItemModel::beginInsertRows ( const QModelIndex & parent,
int first, int last )
So in your case since you want to add a row at the first index, and only one row, we pass 0 as the index of the first item, and 0 which is the index of the last item we are adding (because of course we are only adding one item).
beginInsertRows(modelIndex(), 0, 0);
Next we have to provide the data for the item. I assume that 'list' is a QList (if not it is probably similar). So we want to call the 'insert' method.
list.insert(0, item);
And that should be it.
For display you can try delegates as explained in the link (I haven't tried the example though). It will help the community if you can add your observations.
Thanks to everyone for replying. I have found the solution by my own:
In case if anyone is interested
void TableModel::addFile(const QString &path)
{
beginInsertRows(QModelIndex(), list.size(), list.size());
TableItem item;
item.filename = path;
QFile file(path);
item.size = file.size();
item.status = StatusNew;
list << item; // Why Assign first? Maybe not required
for (int i = list.size() - 1; i > 0; i--)
{
list[i] = list[i-1];
}
list[0] = item; // set newly added item at the top
endInsertRows();
}
Question: how to find sub item, in a QTreeView loaded QAbstractItemModel model with model->match() method?
Problem: model->match() can't find sub items, wtf?!
Here is the example:
As you can see from the picture, I'm trying to expand Layouts sub item with this code:
void Dialog::restoreState(void)
{
// get list
QSettings settings("settings.ini", QSettings::IniFormat);
settings.beginGroup("MainWindow");
QStringList List = settings.value("ExpandedItems").toStringList();
settings.endGroup();
foreach (QString item, List)
{
if (item.contains('|'))
item = item.split('|').last();
// search `item` text in model
QModelIndexList Items = model->match(model->index(0, 0), Qt::DisplayRole, QVariant::fromValue(item));
if (!Items.isEmpty())
{
// Information: with this code, expands ONLY first level in QTreeView
view->setExpanded(Items.first(), true);
}
}
}
Where settings.ini file contains:
[MainWindow]
ExpandedItems=Using Containers, Connection Editing Mode, Form Editing Mode, Form Editing Mode|Layouts
PS: root items successfully expands on start!
Here is the solution:
QModelIndexList Items = model->match(
model->index(0, 0),
Qt::DisplayRole,
QVariant::fromValue(item),
2, // look *
Qt::MatchRecursive); // look *
* Without that argument match() function searches only 1 level
My working example on QTreeView.
QModelIndexList Indexes = this->ui->treeView->selectionModel()->selectedIndexes();
if(Indexes.count() > 0)
{
QStandardItemModel *am = (QStandardItemModel*)this->ui->treeView->model();
QStack<QModelIndex> mis;
QModelIndex mi = Indexes.at(0);
while(mi.isValid())
{
mis.push(mi);
mi = mi.parent();
}
QStandardItem *si;
bool FirstTime = true;
while (!mis.isEmpty())
{
mi = mis.pop();
if(FirstTime)
{
FirstTime = false;
si = am->item(mi.row());
}
else
{
si = si->child(mi.row());
}
}
// "si" - is selected item
}
Wanted to add to the answer that #mosg gave
The forth parameter is actually the hits parameters.
It decides ho many matches one wants to return.
For all matches specify -1 as can be seen
here:
QModelIndexList Items = model->match(
model->index(0, 0),
Qt::DisplayRole,
QVariant::fromValue(item),
-1, // any number of hits
Qt::MatchRecursive); // look *