Strings to QTreeWidget

[jondoe]

I have 2 strings 1 button and 1 QTreeWidget.

QString errors = "Error1,Error2,Error3,Error4"
QString errorslinks = "www.link1.com,www.link2.com,www.link3.com,www.link4.com"

And I have QTreeWidget.
First I need split " , " QString errors after that I must add to QTreeWidget all errors like toplevel.
And for example I selected Error1 and clicked button will open www.link1.com. Selected error2 clicked button will open www.link2.com.

How can I do this can you help me please ?

[TobbY]

Hi,
Take a look at using QTreeWidget.
https://blog.manash.me/quick-qt-6-how-to-add-qpushbutton-or-widgets-to-a-qtreewidget-as-qtreewidgetitem-2ae9f54c0e5f

[Cobra91151]

Hi! Try my solution:

Test.h:

#ifndef TEST_H
#define TEST_H

#include <QWidget>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QTreeWidgetItem>
#include <QDesktopServices>
#include <QUrl>
#include <QMessageBox>
#include <QDebug>

// The structure to maintain order: error => errorLink
struct MyStruct {
    QString error;
    QString errorLink;
};

namespace Ui {
class Test;
}

class Test : public QWidget
{
    Q_OBJECT

public:
    explicit Test(QWidget *parent = nullptr);
    QLayout *setMyLayout();
    QVector<MyStruct> addErrorData(MyStruct errorDataStruct, QVector<MyStruct> errorDataVector);
    void displayErrorData(QVector<MyStruct> errorDataVector);
    ~Test();

private:
    Ui::Test *ui;
};

#endif // TEST_H

Test.cpp:

#include "test.h"
#include "ui_test.h"

Test::Test(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Test)
{
    ui->setupUi(this);
    ui->treeWidget->setHeaderHidden(true);
    ui->treeWidget->setIndentation(0);
    ui->pushButton->setText("Load error link");
    // Lambda code executes the click signal of the button
    connect(ui->pushButton, &QPushButton::clicked, [this]() -> void {
        // Checks if the items is selected, otherwise displays the error
        if (ui->treeWidget->selectedItems().count() != NULL) {
            // Displays the current selected item data and opens it with the default browser
            QDesktopServices::openUrl(QUrl(ui->treeWidget->currentItem()->data(0, Qt::UserRole).toString()));
        } else {
            QMessageBox::critical(this, "Error", "Please select the item from the list and try again!", QMessageBox::Ok);
        }
    });

    // Sets the main layout
    setLayout(setMyLayout());

    // Initialize the structure
    MyStruct errorDataStruct = {};
    // Initialize the vector with a structure
    QVector<MyStruct> errorDataVector;
    // Adds the error data to a vector structure and displays it in the QTreeWidget
    displayErrorData(addErrorData(errorDataStruct, errorDataVector));
}

QLayout *Test::setMyLayout()
{
    QHBoxLayout *errorLayout = new QHBoxLayout();
    errorLayout->addWidget(ui->treeWidget);

    QHBoxLayout *buttonLayout = new QHBoxLayout();
    buttonLayout->addWidget(ui->pushButton, 1, Qt::AlignRight | Qt::AlignBottom);

    QVBoxLayout *testMainLayout = new QVBoxLayout();
    testMainLayout->addLayout(errorLayout);
    testMainLayout->addLayout(buttonLayout);
    return testMainLayout;
}

QVector<MyStruct> Test::addErrorData(MyStruct errorDataStruct, QVector<MyStruct> errorDataVector)
{
    QString errors = "Error1,Error2,Error3,Error4";
    QStringList errorList = errors.split(",");
    QString errorsLinks = "www.cobratek.net,www.google.com,www.microsoft.com,www.qt.io";
    QStringList errorLinkList = errorsLinks.split(",");

    for (int i = 0; i < errorList.count(); i++) {
         errorDataStruct.error = errorList[i];

         for (int j = 0; j < errorLinkList.count(); j++) {
              errorDataStruct.errorLink = errorLinkList[i];
         }

         errorDataVector.push_back(errorDataStruct);
    }

    return errorDataVector;
}

void Test::displayErrorData(QVector<MyStruct> errorDataVector)
{
    for (MyStruct errorData : errorDataVector) {
         QTreeWidgetItem *myTestItem = new QTreeWidgetItem(ui->treeWidget);
         myTestItem->setText(0, errorData.error);
         // adds error links to setData of the QTreeWidgetItem
         myTestItem->setData(0, Qt::UserRole, errorData.errorLink);
    }

    errorDataVector.clear();
}

Test::~Test()
{
    delete ui;
}

Test.ui:

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>Test</class>
 <widget class="QWidget" name="Test">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>400</width>
    <height>300</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Test</string>
  </property>
  <widget class="QTreeWidget" name="treeWidget">
   <property name="geometry">
    <rect>
     <x>30</x>
     <y>20</y>
     <width>256</width>
     <height>192</height>
    </rect>
   </property>
   <column>
    <property name="text">
     <string notr="true">1</string>
    </property>
   </column>
  </widget>
  <widget class="QPushButton" name="pushButton">
   <property name="geometry">
    <rect>
     <x>320</x>
     <y>270</y>
     <width>75</width>
     <height>23</height>
    </rect>
   </property>
   <property name="text">
    <string>PushButton</string>
   </property>
  </widget>
 </widget>
 <layoutdefault spacing="6" margin="11"/>
 <resources/>
 <connections/>
</ui>

It will add all errors to the QTreeWidget as the toplevel QTreeWidgetItems's and open the appropriate error -> link by clicking the button. Happy coding!