How to identify the button text to be changed when click on Caps lock for developing keyboard

[Pradeep Kumar]

Hi,

developing the keyboard.

I have used customized button , inherited from QPushbutton,
on click of Caps , how do i know the respective buttons and change the text.

code below of how i implemented.

MyPushButton .h

class MyPushButton : public QPushButton
{
    Q_OBJECT
public:
    MyPushButton(QString value, int checkvalue, QWidget *parent = 0);
    ~MyPushButton();

protected:
    void mousePressEvent(QMouseEvent *event);

signals:
    void emitString_SIGNAL(QString);
};

MyPushButton .cpp

MyPushButton::MyPushButton(QString value, int checkvalue, QWidget *parent)
    :QPushButton(parent)
{
    qDebug () << "keyboard value :" << value;
    this->setObjectName(value);
    qDebug () << "objectname :" << this->objectName() << endl;

    if(checkvalue == 0 || checkvalue == 4)
    {
        this->setText(value);
    }
    else if(checkvalue == 1)
    {
        QPixmap pixmap(":/OthersFiles/Images/backspace.png");
        QIcon ButtonIcon(pixmap);
        this->setIcon(ButtonIcon);
    }
    else if(checkvalue == 2)
    {
        QPixmap pixmap(":/OthersFiles/Images/enter.png");
        QIcon ButtonIcon(pixmap);
        this->setIcon(ButtonIcon);
    }
    else if(checkvalue == 3)
    {
        QPixmap pixmap(":/OthersFiles/Images/arrowUp.png");
        QIcon ButtonIcon(pixmap);
        this->setIcon(ButtonIcon);
    }
    else if(checkvalue == 5)
    {
        QPixmap pixmap(":/OthersFiles/Images/multilingualicon.png");
        QIcon ButtonIcon(pixmap);
        this->setIcon(ButtonIcon);
    }
    else if(checkvalue == 7)
    {
        QPixmap pixmap(":/OthersFiles/Images/close1.jpg");
        QIcon ButtonIcon(pixmap);
        this->setIcon(ButtonIcon);
    }
}



void MyPushButton::mousePressEvent(QMouseEvent *event)
{
    Q_UNUSED(event)

    qDebug () << "key pressed :" << this->text() << this->objectName() << endl;

    QString text = this->text();
    QString strobjectName = this->objectName();
    qDebug () << "key pressed :" << this->text() << strobjectName << endl;

    emit emitString_SIGNAL(text);


}

Keyboard.cpp

void KeyboardLayout::createKeyboardLayout()
{
    m_hbox->addWidget(addKeys(tr("Q"),characters));
    m_hbox->addWidget(addKeys(tr("W"),characters));
    m_hbox->addWidget(addKeys(tr("E"),characters));
    m_hbox->addWidget(addKeys(tr("R"),characters));
    m_hbox->addWidget(addKeys(tr("T"),characters));
    m_hbox->addWidget(addKeys(tr("Y"),characters));
    m_hbox->addWidget(addKeys(tr("U"),characters));
    m_hbox->addWidget(addKeys(tr("I"),characters));
    m_hbox->addWidget(addKeys(tr("O"),characters));
    m_hbox->addWidget(addKeys(tr("P"),characters));
    m_hbox->addWidget(addKeys("backspaceicon",backspace_icon));

    m_vbox->insertLayout(0,m_hbox);


    m_hbox1->addWidget(addKeys(tr("A"),characters));
    m_hbox1->addWidget(addKeys(tr("S"),characters));
    m_hbox1->addWidget(addKeys(tr("D"),characters));
    m_hbox1->addWidget(addKeys(tr("F"),characters));
    m_hbox1->addWidget(addKeys(tr("G"),characters));
    m_hbox1->addWidget(addKeys(tr("H"),characters));
    m_hbox1->addWidget(addKeys(tr("J"),characters));
    m_hbox1->addWidget(addKeys(tr("K"),characters));
    m_hbox1->addWidget(addKeys(tr("L"),characters));
    m_hbox1->addWidget(addKeys("entericon",enter_icon));

    m_vbox->insertLayout(1,m_hbox1);


    m_hbox2->addWidget(addKeys("capsicon",caps_icon));
    m_hbox2->addWidget(addKeys(tr("Z"),characters));
    m_hbox2->addWidget(addKeys(tr("X"),characters));
    m_hbox2->addWidget(addKeys(tr("C"),characters));
    m_hbox2->addWidget(addKeys(tr("V"),characters));
    m_hbox2->addWidget(addKeys(tr("B"),characters));
    m_hbox2->addWidget(addKeys(tr("N"),characters));
    m_hbox2->addWidget(addKeys(tr("M"),characters));
    m_hbox2->addWidget(addKeys(tr(","),characters));
    m_hbox2->addWidget(addKeys(tr("."),characters));
    m_hbox2->addWidget(addKeys("capsicon",caps_icon));


    m_vbox->insertLayout(2,m_hbox2);


    m_hbox3->addWidget(addKeys("&123",numbers));
    m_hbox3->addWidget(addKeys("multilingual",multilingual_icon));
    m_hbox3->addWidget(addKeys("spacebar",spacebar));
    m_hbox3->addWidget(addKeys(",",characters));
    m_hbox3->addWidget(addKeys(":-)",characters));
    m_hbox3->addWidget(addKeys("close",close_icon));

    m_vbox->insertLayout(3,m_hbox3);


    this->setLayout(m_vbox);
}

QPushButton *KeyboardLayout::addKeys(QString strValue, int icheckValue)
{
    button = new MyPushButton(strValue,icheckValue,this);
    connect(button,SIGNAL(emitString_SIGNAL(QString)),this,SLOT(getPushButton_TextSLOT(QString)));
   
    return button;
}

How do i change the text of buttons to lower case?. on click of up arrow..

Thanks,

[jsulm]

@Pradeep-Kumar Iterate over all the buttons and for each do

button->setText(button->text().toLower());