I'm trying to implement a default button. This button should access strings of the parent widget which is a dialog box which the button is found on. I pasted the relevant parts of the code below. What I want is to be able to place strings to their corresponding lineEdit's when default values is clicked. For example pulse_string goes to ui->pulse_freq and nr_pulsestring goes into ui->nr_pulses etc.
#include "settings.h"
#include "ui_settings.h"
#include <QLineEdit>
#include <QSlider>
#include <QSpinBox>
int pulse_freq = 25000;
int nr_pulses = 10;
int samp_freq = 150000;
int nr_samples = 2000;
int gain = 32;
int accumulate = 1;
int acq_start = 0;
Settings::Settings(QWidget *parent) :
QDialog(parent),
ui(new Ui::Settings)
{
QString pulse_string, nr_pulsestring, sampfreq_string, nr_samplestring, gain_string;
QString accumulate_string, acq_string;
}
Settings::~Settings()
{
delete ui;
}
void Settings::on_Default_Values_clicked()
{
ui->pulse_freq->setText("25000");
ui->nr_pulses->setText("10");
ui->samp_freq->setText("150000");
ui->nr_samples->setText("2000");
ui->gain->setText("32");
ui->accumulate->setText("1");
ui->acq_start->setText("0");
}
You can use something looking like follows:
ui->pulse_freq->setText(QString("%1").arg(pulse_freq));
Since it seems you are only using numbers it would be better using a spinbox to insert values, so you dont have to check if an input is a valid number, etc.
Related
I have label created and want tooltip over it, I want to set tooltip's maximum and minimum width but somehow its not working.
I am not expert to QT, not able to figure out the reason.
Code:
#include "widget.h"
#include <QApplication>
#include <QListWidget>
#include <QListWidgetItem>
#include <QLabel>
#include <QHBoxLayout>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QListWidget listWidget;
listWidget.setContentsMargins(QMargins(0, 0, 0, 0));
for (int i = 0; i < 5; ++i)
{
QListWidgetItem* item = new QListWidgetItem();
auto *itemWidget = new QWidget();
auto *textLabel = new QLabel(QString("Item %1").arg(i + 1), itemWidget);
textLabel->setMinimumWidth(100); //Not working whatever value I set
textLabel->setMaximumWidth(400); //Not working whatever value I set
textLabel->setToolTip("<p>This is the looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooonggggggggggggggg name </p>");
listWidget.addItem(item);
listWidget.setItemWidget(item, itemWidget);
}
listWidget.show();
return a.exec();
}
Tooltip:
can someone please help.
You cant directly set max and min on tooltip , hence you should indrectly do that(for this usecase):
static const QString FORMATTER = "<p>%1</p>";
QString tooltip =
"This is the "
"looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo"
"oooooooooooooooooonggggggggggggggg name.";
static constexpr auto maximum = 10;
textLabel->setToolTip(FORMATTER.arg(tooltip.mid(0, maximum)));
Update:
if you want exactly have your widget with any properties for tooltip , you can override your events and show the ToolTipWidget that reimplemented.
i.e: Qt WIdget inside ToolTip
textLabel->setMinimumWidth(100);
textLabel->setMaximumWidth(400);
This will set the min/max width of the label itself not the tooltip.
If you want to customize tooltip behavior, you'll have to override the event() function to catch QEvent::ToolTip (and probably QEvent::ToolTipChange) and draw it yourself using QToolTip::showText()
please use :textLabel->setToolTip
I am stuck on a certain problem with table widgets and I am in need of help. Basically, I am trying to get a table widget on a dialogue screen to get the information inside of it and then fill that information on to another table widget on a main window screen. So, when I click the OK button, it should take the text from one table widget and place it in the other table widget. I tried using the below code, and the build ran. But, as soon as I clicked OK, the program crashed. The table called TableWidgetedit is the table I am trying to copy from and send to the table in the mainwindow, named tablewidget. (just to make so I am not vague, I am trying to copy data from the one table and place it in another table, when a user clicks on the OK button.)
int rows = 6;
int columns = 5;
Ui::MainWindow *mainui;
void EditMode1::on_pushButton_clicked()
{
for (int i = 0; i<columns;++i){
for (int j = 0;j<rows;++j){
QTableWidgetItem *celltxt= TableWidgetedit.item(j,i);
mainui->tableWidget->setItem(j,i,celltxt);
}
}
}
Any and all help is appreciated. Thank you!
(I am a not the best with Qt so if you don't mind explaining what changes you have made and why, that would a great help thank you!).
-UPDATE-
#Jeet here are the code for what im trying to do:
tablemainwindow1.h:
#ifndef TABLEMAINWINDOW1_H
#define TABLEMAINWINDOW1_H
#include <QMainWindow>
#include "tabledialougewindow.h"
namespace Ui {
class TableMainWindow1;
}
class TableMainWindow1 : public QMainWindow
{
Q_OBJECT
public:
explicit TableMainWindow1(QWidget *parent = 0);
~TableMainWindow1();
private slots:
void on_pushButton_clicked();
private:
Ui::TableMainWindow1 *ui;
TableDialougeWindow *tbl2;
};
#endif // TABLEMAINWINDOW1_H
tablemainwindow1.cpp:
#include "tablemainwindow1.h"
#include "ui_tablemainwindow1.h"
TableMainWindow1::TableMainWindow1(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::TableMainWindow1)
{
ui->setupUi(this);
ui->tableWidget->setRowCount(3);
ui->tableWidget->setColumnCount(3);
}
TableMainWindow1::~TableMainWindow1()
{
delete ui;
}
void TableMainWindow1::on_pushButton_clicked()
{
tbl2 = new TableDialougeWindow(this);
tbl2->show();
}
tabledialougewindow.h:
#ifndef TABLEDIALOUGEWINDOW_H
#define TABLEDIALOUGEWINDOW_H
#include <QDialog>
namespace Ui {
class TableDialougeWindow;
}
class TableDialougeWindow : public QDialog
{
Q_OBJECT
public:
explicit TableDialougeWindow(QWidget *parent = 0);
~TableDialougeWindow();
private slots:
void on_buttonBox_accepted();
private:
Ui::TableDialougeWindow *ui;
};
#endif // TABLEDIALOUGEWINDOW_H
tabledialougewindow.cpp:
#include "tabledialougewindow.h"
#include "ui_tabledialougewindow.h"
#include "tablemainwindow1.h"
#include "ui_tablemainwindow1.h"
int Rows = 3;
int Columns = 3;
Ui::TableMainWindow1 *mainui;
TableDialougeWindow::TableDialougeWindow(QWidget *parent) :
QDialog(parent),
ui(new Ui::TableDialougeWindow)
{
ui->setupUi(this);
ui->tableWidget->setRowCount(Rows);
ui->tableWidget->setColumnCount(Columns);
}
TableDialougeWindow::~TableDialougeWindow()
{
delete ui;
}
void TableDialougeWindow::on_buttonBox_accepted()
{
for(int i = 0;i<Columns;++i){
for(int j = 0;j<Rows;++j){
QTableWidgetItem *celltxt = ui->tableWidget->item(j,i);
QTableWidgetItem *celltxt2 =new QTableWidgetItem(*celltxt);
mainui->tableWidget->setItem(j,i,celltxt2);
}
}
accept();
}
hope this helps.
The error is we cannot insert an item that is already owned by another QTableWidget. So before make a copy we need to clone the data. we can use copy constructor to achieve this. Code comment will explain in detail. Hope this help.
void MainWindow::on_cmdTransfer_clicked()
{
//Source Table
int rows = ui->tbl1->rowCount();
int columns =ui->tbl1->columnCount();
//Destination Table
ui->tbl2->setColumnCount(columns);
ui->tbl2->setRowCount(rows);
//Copy data form one table to another.
for (int i = 0; i<columns;++i){
for (int j = 0;j<rows;++j){
QTableWidgetItem *celltxt= ui->tbl1->item(j,i);
//Clone the data using copy constructor
QTableWidgetItem *celltxt1=new QTableWidgetItem(*celltxt);
ui->tbl2->setItem(j,i,celltxt1);
}
}
}
I am using a special form of the qt framework and it will look a bit complicated. But do not worry. It is the same as the original framework of qt. (And no I can't change it)
My intention of this program is to load a table in a tableview from the ui. The tableview should have as many rows and text as files that are in a directory. I take all files in the directory and put an filter on them. Only the selected one are counted and used afterwards.
And now to my problem:
I want to display the table like an Excel table: it should highlight the cell where my cursor (in my example it is an counter which goes up and down) stands right now (Currently I do not have a cursor, so I have to use a self-created "cursor". You will see it in the program what I mean).
I use a QStandardItemModel to display it and a QStandardItem to define it.
Because I want to change the color of the cells I use an QStandardItem array to save the cells one by one.
form.h:
#ifndef FORM_H
#define FORM_H
#include <QWidget>
#include <QTextTable>
#include <QFont>
#include <QFile>
#include <QDir>
#include <QTextStream>
#include <QString>
#include <QStringList>
#include <QStandardItemModel>
#include <QStandardItem>
#include <QBrush>
namespace Ui {
class Form;
}
class Form : public QWidget
{
Q_OBJECT
public:
explicit Form(QWidget *parent = 0);
~Form();
void my_setCFGFromDirectory();
void my_Highlighted(int, bool);
void my_loadCFG(int);
private:
Ui::Form *ui;
QFile file;
QTextStream textstream;
QDir directory;
QString filename;
QStringList stringlist;
QStringList filter;
QStandardItemModel *model;
QStandardItem *tableitem;
QStandardItem* pointerTableitem[];
int max_files;
int w_counter;
bool check1;
bool check2;
bool check3;
};
#endif // FORM_H
and the
form.cpp
#include "form.h"
#include "ui_form.h"
#include "rbobject.h"
Form::Form(QWidget *parent) :
QWidget(parent),
ui(new Ui::Form)
{
ui->setupUi(this);
}
Form::~Form()
{
delete ui;
}
void Form::my_Highlighted(int actual_count, bool modus){
if(modus == 1){
w_counter = 0;
while(w_counter < max_files){
if(w_counter == actual_count){
pointerTableitem[w_counter]->setBackground(QBrush(QColor(130,180,255)));
}
w_counter++;
}
}
else
{
w_counter = 0;
while(w_counter < max_files){
pointerTableitem[w_counter]->setBackground(QBrush(QColor(255,255,255)));
w_counter++;
}
}
}
void Form::my_setCFGFromDirectory(){
directory.setPath("/etc/rosenbauer/CFG-Files");
filter << "*_CFG.ini";
stringlist = directory.entryList(filter); //takes the selected files and wriths them in a filelist
max_files = stringlist.count(); //Counts the selected files
pointerTableitem [max_files];
memset(pointerTableitem, 0, max_files*sizeof(int)); //The compiler can not see how many elements should be in the array at the time he constructs the array.
//So you have to use this to tell the compiler, how many elements it should create
model = new QStandardItemModel(max_files, 1, this); //Rows , Columns , this
model->setHorizontalHeaderItem(0, new QStandardItem(QString("CFG-Files"))); //Column , QStandarditem...name
for(w_counter = 0; w_counter != max_files; w_counter++){
tableitem = new QStandardItem();
tableitem->setBackground(QBrush(QColor(255,255,255)));
tableitem->setText(QString(stringlist[w_counter])); //Wriths text in the cell
qDebug() << tableitem->text();
pointerTableitem[w_counter] = tableitem; //Stacks the tableitems in a filelist
model->setItem(w_counter, 0, tableitem); //Row, Column , tableitem...text
}
w_counter = 0;
//pointerTableitem[2]->setBackground(QBrush(QColor(130,180,255))); //Test
ui->TableConfig->setModel(model); //Sets the table into the UI
}
void Form::my_loadCFG(int file_position){
check1 = 0;
check2 = 0;
directory.setPath("/etc/rosenbauer/etc/rosenbauer");
check1 = directory.remove("SA008_890560-001_CFG.ini");
check2 = directory.remove("reparsed/SA008_890560-001_CFG.ini_reparsed");
if(check1 && check2){
filename = pointerTableitem[file_position]->text();
check3 = QFile::copy("/etc/rosenbauer/CFG-Files/"+filename, "/etc/rosenbauer/SA008_890560-001_CFG.ini");
if(!check3){
qDebug() << "Error! Could not copy new CFG-file into directory";
}
}
else
{
qDebug() << "Error! Could not delete running CFG-file(s) from directory";
}
}
The main header rbobject45000.h
#ifndef RbObject45000_H
#define RbObject45000_H
#include "rbobject.h"
#include "form.h"
class RbObject45000 : public RbObject{
public:
RbObject45000();
RbObject45000(qint32 rbObjectId, RDataObject *dataobject, qint32 style, QObject *parent = 0);
RbObject45000(qint32 rbObjectId, qint32 style, qint32 prio, QObject *parent);
bool entered_ui;
bool entered_key;
short counter;
short w_count;
short delay_count;
short max_files;
short begin;
short end;
Form *f;
void exec();
~RbObject45000();
};
#endif // RbObject45000_H
And this is the main:
rbobject45000.cpp
RbObject45000::RbObject45000(qint32 rbObjectId, qint32 style, qint32 prio, QObject *parent):
RbObject(rbObjectId, style, prio, parent){
entered_ui = 0;
entered_key = 0;
counter = 0;
w_count = 1; //... whilecounter
delay_count = 0; //... delay for the deadtime
max_files = 0;
begin = 0;
end = 0;
f= new Form(); //f...name of the displayed UI
}
void RbObject45000::exec(){
//Opens the file on the display
if(getKey(RB_KEY_9) && getKey(RB_KEY_7) && entered_ui ==0){
f->show();
entered_ui = 1;
// Geting the Files from Directory
f->my_setCFGFromDirectory();
}
// Prescind them file in the table
if(entered_ui == 1 && delay_count == 2){
if(getKey(RB_KEY_7)){
counter--;
entered_key = 1;
if(counter < 0){
counter = 0;
}
}
else if(getKey(RB_KEY_9)){
counter++;
entered_key = 1;
if(counter > max_files){
counter = max_files;
}
}
if(entered_key == 1){
while(w_count <= max_files){
f->my_Highlighted(w_count, 0); //Cell , not highlighted
w_count++;
}
w_count = 0;
f->my_Highlighted(counter,1); //Cell , highlighted
entered_key = 0;
}
delay_count = 0;
}
else if(delay_count == 2){ //if delay == 2 and nobody hit a button
delay_count = 0;
}
delay_count++;
//Load the coosen file as programm-config in
if(entered_ui == 1){
if(getKey(RB_KEY_8)){
f->my_loadCFG(counter);
}
}
}
(RB_KEY_7-9 are buttons of a hardware-module, only have to click them)
So if I do it like this, the program will compile and start. If I press the buttons and the program run into the my_setCFGFromDirectory() it exits the window and stop running, but if the QStandardItem pointerTableitem is declared in the my_setCFGFromDirectory() everything works fine (but the pointerTableitem needs to be private).
The errors I get are:
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Form(0x167498), parent's thread is QThread(0x1414e8), current thread is QThread(0x15d2d8)
Segmentation fault
It appears to say I use a thread (I'm sure I don't). But I know it has something to do with pointerTableitem and the declaration in the header and cpp.
If I'm not mistaken the problem lies here:
model = new QStandardItemModel(max_files, 1, this);
You try to create a QStandardItemModel passing your Form instance this as a parent, the form was created on the main thread, this call apparently happens on another thread (the edits you made were not enough, it is still unclear if RbObject inherits QThread but you could check that yourself) and thus the error message.
Why not call the function on the main thread? Instead of doing this
f->show();
entered_ui = 1;
// Geting the Files from Directory
f->my_setCFGFromDirectory();
in a different thread, make a slot/signal pair for the Form class, put this code in the slot and fire the connected signal from RbObject45000::exec(). It is not correct to do UI manipulation from a non-UI trhead.
I am trying to create pop-up menu depending on a variable as follows:
QMenu menu(widget);
for(int i = 1; i <= kmean.getK(); i++)
{
stringstream ss;
ss << i;
string str = ss.str();
string i_str = "Merge with " + str;
QString i_Qstr = QString::fromStdString(i_str);
menu.addAction(i_Qstr, this, SLOT(mergeWith1()));
}
menu.exec(position);
where:
kmean.get(K) returns an int value,
mergeWith1() is some `SLOT()` which works fine
Issue:
The loop creates an action on menu only for i=1 case, and ignores other values of i.
Additional information
When doing the same loop with casual int values (without convert) everything works fine. e.g. if I do in loop only menu.addAction(i, this, SLOT(...))) and my K=4, a menu will be created with four actions in it, named 1, 2, 3, 4 correspondingly.
What can be the problem caused by
I think the issue is in convert part, when I convert i to string using stringstream and after to QString. May be the value is somehow lost. I am not sure.
QESTION:
How to make the loop accept the convert part?
What do I do wrong in convert part?
In Qt code, you shouldn't be using std::stringstream or std::string. It's pointless.
You have a crashing bug by having the menu on the stack and giving it a parent. It'll be double-destructed.
Don't use the synchronous blocking methods like exec(). Show the menu asynchronously using popup().
In order to react to the actions, connect a slot to the menu's triggered(QAction*) signal. That way you can deal with arbitrary number of automatically generated actions.
You can use the Qt property system to mark actions with custom attributes. QAction is a QObject after all, with all the benefits. For example, you can store your index in an "index" property. It's a dynamic property, created on the fly.
Here's a complete example of how to do it.
main.cpp
#include <QApplication>
#include <QAction>
#include <QMenu>
#include <QDebug>
#include <QPushButton>
struct KMean {
int getK() const { return 3; }
};
class Widget : public QPushButton
{
Q_OBJECT
KMean kmean;
Q_SLOT void triggered(QAction* an) {
const QVariant index(an->property("index"));
if (!index.isValid()) return;
const int i = index.toInt();
setText(QString("Clicked %1").arg(i));
}
Q_SLOT void on_clicked() {
QMenu * menu = new QMenu();
int last = kmean.getK();
for(int i = 1; i <= last; i++)
{
QAction * action = new QAction(QString("Merge with %1").arg(i), menu);
action->setProperty("index", i);
menu->addAction(action);
}
connect(menu, SIGNAL(triggered(QAction*)), SLOT(triggered(QAction*)));
menu->popup(mapToGlobal(rect().bottomRight()));
}
public:
Widget(QWidget *parent = 0) : QPushButton("Show Menu ...", parent) {
connect(this, SIGNAL(clicked()), SLOT(on_clicked()));
}
};
int main (int argc, char **argv)
{
QApplication app(argc, argv);
Widget w;
w.show();
return app.exec();
}
#include "main.moc"
I create own widget based on QTableView. It's something like file dialog (list). I want to act intuitively.
a) working with whole rows
b) indicator also worked with whole rows
c) using switched enter the lower level (subdirectory)
d) after run program or moving to a lower level cursor must be on the first row of the table (row 0)
And there is problem. I can not force the program to place the cursor on the first line.
I tried several methods, but none succeeded. setCurrentIndex. selectRow etc. Cursor is always somewhere else. Not highlighted, not on first line, but once it's on 10 position second on 4 position etc. It behaves unpredictably.
How can I do it?
Here my code is:
mFileBoxWidget::mFileBoxWidget(QWidget *parent) :
QTableView(parent)
,model(new QFileSystemModel())
{
this->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
this->setShowGrid(false);
this->verticalHeader()->setVisible(false);
this->installEventFilter(this);
model->setReadOnly(true);
this->setModel(model);
this->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch );
this->setColumnWidth(1,70);
this->setColumnWidth(2,70);
this->setColumnWidth(3,110);
this->setRootIndex(model->setRootPath("C://"));
this->setSelectionMode(QAbstractItemView::SingleSelection);
this->setSelectionBehavior(QAbstractItemView::SelectRows);
//this->selectRow(0); //Does not work - goto first row
//this->setCurrentIndes(Index); //Does not work - goto index x=0 y=0
}
Thank you with advance for all your responses.
Solved!
The problem is that the model is asynchronous. So reads the data in another thread. When I tried to set the index to the first line, still basically did not exist. The solution is, of course, to wait for loading the thread. At this point signal directoryLoaded(QString) is send. As a result, it is necessary to wait for the signal, and only then set index.
connect(myModel, SIGNAL(directoryLoaded(QString)), this, SLOT(onLoaded()));
void mFileBoxWidget::onLoaded()
{
QModelIndex index = myModel->index(myModel->rootPath());
this->setCurrentIndex(index.child(0, index.column()));
}
You shouldn't name your member variable model. QTableView has function model(), the compiler thinks this->model is meant to be this->model(), therefore you get the error you mentioned.
This is untested code, but I think something like this should work:
QModelIndex firstRow = QTableView::model()->index(0, 0);
QTableView::selectionModel()->select(firstRow,
QItemSelectionModel::ClearAndSelect |
QItemSelectionModel::Rows );
EDIT: (2013-06-19 06:12:58 UTC)
A simple (and ugly) workaround that worked so far for me is triggering a call to m_tableView->selectRow(0); from a QTimer.
Here's the sample code:
Header:
#ifndef MAINWIDGET_H
#define MAINWIDGET_H
#include <QWidget>
class QTableView;
class QFileSystemModel;
class MainWidget : public QWidget
{
Q_OBJECT
public:
MainWidget(QWidget *parent = 0);
~MainWidget();
private:
void layoutWidgets();
QFileSystemModel *m_model;
QTableView *m_tableView;
private slots:
void selectFirstRow();
// for debugging only
void selectionChanged();
};
#endif // MAINWIDGET_H
Implementation:
#include "mainwidget.h"
#include <QTableView>
#include <QHBoxLayout>
#include <QFileSystemModel>
#include <QHeaderView>
#include <QTimer>
MainWidget::MainWidget(QWidget *parent)
: QWidget(parent)
{
m_tableView = new QTableView(this);
m_model = new QFileSystemModel(this);
m_model->setReadOnly(true);
m_tableView->setModel(m_model);
m_tableView->setRootIndex(m_model->setRootPath(QDir::homePath()));
m_tableView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_tableView->setShowGrid(false);
m_tableView->verticalHeader()->setVisible(false);
m_tableView->setColumnWidth(1,70);
m_tableView->setColumnWidth(2,70);
m_tableView-> setColumnWidth(3,110);
m_tableView->setSelectionMode(QAbstractItemView::SingleSelection);
m_tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
//m_tableView->->setSectionResizeMode(0, QHeaderView::Stretch ); // Qt 5?
layoutWidgets();
connect(m_tableView->selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)), this, SLOT(selectionChanged()) );
// This works
QTimer::singleShot(1000, this, SLOT(selectFirstRow()));
// Direct invocation - doesn't works
// selectFirstRow();
}
void MainWidget::layoutWidgets()
{
QHBoxLayout *mainLayout = new QHBoxLayout;
mainLayout->addWidget(m_tableView);
setLayout(mainLayout);
setFixedSize(500,500);
}
void MainWidget::selectFirstRow()
{
m_tableView->selectRow(0);
}
void MainWidget::selectionChanged()
{
qDebug("Selection changed");
}
MainWidget::~MainWidget()
{}
The weird thing is, if QTimer::singleShot() needs to be triggered with a delay of at least ~25 ms., otherwise it wouldn't work in my system.
Here's the alternative, subclassing QTableView:
#include "mytableview.h"
#include <QFileSystemModel>
#include <QHeaderView>
#include <QTimer>
MyTableView::MyTableView(QWidget *parent) : QTableView(parent)
{
QFileSystemModel *myModel = new QFileSystemModel;
setModel(myModel);
setRootIndex(myModel->setRootPath(QDir::homePath()));
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setShowGrid(false);
verticalHeader()->setVisible(false);
//installEventFilter(this);
myModel->setReadOnly(true);
//setSectionResizeMode(0, QHeaderView::Stretch ); // Qt 5
setColumnWidth(1,70);
setColumnWidth(2,70);
setColumnWidth(3,110);
setSelectionMode(QAbstractItemView::SingleSelection);
setSelectionBehavior(QAbstractItemView::SelectRows);
QTimer::singleShot(100, this, SLOT(selectFirstRow()));
connect(selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)), this, SLOT(selectionChanged()));
}
void MyTableView::selectFirstRow()
{
// qDebug("Selecting first row");
// QModelIndex firstRow = QTableView::model()->index(0,0);
// if(firstRow.isValid()){
// selectionModel()->select(firstRow, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows );
// }else{
// qDebug("Invalid index");
// }
selectRow(0);
}
void MyTableView::selectionChanged()
{
qDebug("Selection changed.");
}