virtual numpad for qt4.8

sandycoolxyz

Hello,
I am using Qt4.8 .
I wanted to use a virtual keypad for lineedits. (Numpad pops up when u click lineedits). Can be a normal keyboard as well.
Is there any exisiting project I can use or should I reinvent the wheel ?

Regards,
Sandeep

VRonin

@sandycoolxyz said in virtual numpad for qt4.8:

should I reinvent the wheel ?

Not a huge wheel to reinvent as long as you are willing to stick to Arab numbers.

#include <QWidget>
#include <QGridLayout>
#include <QLocale>
#include <QSignalMapper>
#include <QPushButton>
class NumPad : public QWidget{
    Q_OBJECT
    Q_DISABLE_COPY(NumPad)
public:
    explicit NumPad(QWidget* parent=0)
        :QWidget(parent)
    {
        setWindowTitle(tr("Numpad"));
        QGridLayout* mainLay=new QGridLayout(this);
        QSignalMapper* mainMapper = new QSignalMapper(this);
        connect(mainMapper,SIGNAL(mapped(int)),this,SIGNAL(numKeyPressed(int)));
        QPushButton* zeroButton =new QPushButton(locale().toString(0),this);
        mainLay->addWidget(zeroButton,3,1);
        mainMapper->setMapping(zeroButton,0);
        connect(zeroButton,SIGNAL(clicked()),mainMapper,SLOT(map()));
        mainLay->addItem(new QSpacerItem(1,1),3,0);
        mainLay->addItem(new QSpacerItem(1,1),3,2);
        for(int i=1;i<=9;++i){
            QPushButton* singleButton =new QPushButton(locale().toString(i),this);
            mainLay->addWidget(singleButton,(i-1)/3,(i-1)%3);
            mainMapper->setMapping(singleButton,i);
            connect(singleButton,SIGNAL(clicked()),mainMapper,SLOT(map()));
        }
    }
    Q_SIGNAL void numKeyPressed(int val);
};

mrjj

Hi
Nice poor mans version. :)
There is also
http://doc.qt.io/qt-4.8/qt-tools-inputpanel-example.html
Using RequestSoftwareInputPanel event.
I assume the Qt keyboard uses these ?