#include "keypad.h"


#define numPadKeyWidth      40
static bool keypad_NumberIsVisible;
static bool keypad_visiKeyAllowed;

T_keypad::T_keypad(QWidget *parent) : QWidget(parent)
{
    QFont myTabFont;
    myTabFont.setPixelSize(20);

    myMainLay  = new QVBoxLayout;
    mySubLayout = new QGridLayout;

    valueDisplay = new QLabel();
    valueDisplay->setStyleSheet("background-color: white");
    valueDisplay->setLineWidth(5);
    valueDisplay->setFont(myTabFont);
    myMainLay->addWidget(valueDisplay);
    myMainLay->addLayout(mySubLayout);


    // number Pad Popup for Value entry:
    numPad = new QGroupBox(" ");
    numPad->setStyleSheet("background-color: grey");
    numPad->setLayout(myMainLay);

    QPushButton *key1 = new QPushButton("1");
    mySubLayout->addWidget(key1,0,0);
    key1->setMaximumWidth(numPadKeyWidth);
    key1->setFont(myTabFont);
    connect(key1, SIGNAL(clicked()), this, SLOT(key1Clicked()));

    QPushButton *key2 = new QPushButton("2");
    mySubLayout->addWidget(key2,0,1);
    key2->setMaximumWidth(numPadKeyWidth);
    key2->setFont(myTabFont);
    connect(key2, SIGNAL(clicked()), this, SLOT(key2Clicked()));

    QPushButton *key3 = new QPushButton("3");
    mySubLayout->addWidget(key3,0,2);
    key3->setMaximumWidth(numPadKeyWidth);
    key3->setFont(myTabFont);
    connect(key3, SIGNAL(clicked()), this, SLOT(key3Clicked()));

    QPushButton *key4 = new QPushButton("4");
    mySubLayout->addWidget(key4,1,0);
    key4->setMaximumWidth(numPadKeyWidth);
    key4->setFont(myTabFont);
    connect(key4, SIGNAL(clicked()), this, SLOT(key4Clicked()));

    QPushButton *key5 = new QPushButton("5");
    mySubLayout->addWidget(key5,1,1);
    key5->setMaximumWidth(numPadKeyWidth);
    key5->setFont(myTabFont);
    connect(key5, SIGNAL(clicked()), this, SLOT(key5Clicked()));

    QPushButton *key6 = new QPushButton("6");
    mySubLayout->addWidget(key6,1,2);
    key6->setMaximumWidth(numPadKeyWidth);
    key6->setFont(myTabFont);
    connect(key6, SIGNAL(clicked()), this, SLOT(key6Clicked()));

    QPushButton *key7 = new QPushButton("7");
    mySubLayout->addWidget(key7,2,0);
    key7->setMaximumWidth(numPadKeyWidth);
    key7->setFont(myTabFont);
    connect(key7, SIGNAL(clicked()), this, SLOT(key7Clicked()));

    QPushButton *key8 = new QPushButton("8");
    mySubLayout->addWidget(key8,2,1);
    key8->setMaximumWidth(numPadKeyWidth);
    key8->setFont(myTabFont);
    connect(key8, SIGNAL(clicked()), this, SLOT(key8Clicked()));

    QPushButton *key9 = new QPushButton("9");
    mySubLayout->addWidget(key9,2,2);
    key9->setMaximumWidth(numPadKeyWidth);
    key9->setFont(myTabFont);
    connect(key9, SIGNAL(clicked()), this, SLOT(key9Clicked()));

    QPushButton *keyAc = new QPushButton("AC");
    mySubLayout->addWidget(keyAc,3,0);
    keyAc->setMaximumWidth(numPadKeyWidth);
    keyAc->setFont(myTabFont);
    connect(keyAc, SIGNAL(clicked()), this, SLOT(keyAcClicked()));

    QPushButton *key0 = new QPushButton("0");
    mySubLayout->addWidget(key0,3,1);
    key0->setMaximumWidth(numPadKeyWidth);
    key0->setFont(myTabFont);
    connect(key0, SIGNAL(clicked()), this, SLOT(key0Clicked()));

    QPushButton *keyBs = new QPushButton("<<");
    mySubLayout->addWidget(keyBs,3,2);
    keyBs->setMaximumWidth(numPadKeyWidth);
    keyBs->setFont(myTabFont);
    connect(keyBs, SIGNAL(clicked()), this, SLOT(keyBsClicked()));

    QPushButton *keyC = new QPushButton("Esc");
    mySubLayout->addWidget(keyC,4,0);
    keyC->setMaximumWidth(numPadKeyWidth);
    keyC->setFont(myTabFont);
    connect(keyC, SIGNAL(clicked()), this, SLOT(keyCancelClicked()));

    QPushButton *keySee = new QPushButton("see");
    mySubLayout->addWidget(keySee,4,1);
    keySee->setMaximumWidth(numPadKeyWidth);
    keySee->setFont(myTabFont);
    connect(keySee, SIGNAL(clicked()), this, SLOT(keySeeEntryClicked()));

    QPushButton *keyOK = new QPushButton("OK");
    mySubLayout->addWidget(keyOK,4,2);
    keyOK->setMaximumWidth(numPadKeyWidth);
    keyOK->setFont(myTabFont);
    connect(keyOK, SIGNAL(clicked()), this, SLOT(keyOkClicked()));

    numPad->hide();
    myValueString.clear();
    valueDisplay->clear();
    myReturnString.clear();
    keypad_visiKeyAllowed=true;
    keypad_NumberIsVisible=true;
}

T_keypad::~T_keypad()
{
    
}

void T_keypad::show(void)
{
    numPad->show();
    numPad->setFocus();
    numPad->setEnabled(true);
    numPad->raise();
    myValueString.clear();
    valueDisplay->clear();
    myReturnString.clear();
}

void T_keypad::hide(void)
{
    numPad->hide();
}

void T_keypad::keysVisible(uint8_t visib)
{
    // visib=0: show *     1:show numbers    2: show * but allow visi-key
    if (visib==0)
    {
        keypad_NumberIsVisible=false;
        keypad_visiKeyAllowed=false;
    } else
    if (visib==1)
    {
        keypad_NumberIsVisible=true;
        keypad_visiKeyAllowed=false;
    } else
    if (visib==2)
    {
        keypad_NumberIsVisible=false;
        keypad_visiKeyAllowed=true;
    }

}


QString T_keypad::getValueString(void)
{
    return  myReturnString;
}

int32_t T_keypad::getValueDecimal(void)
{
    return myReturnString.toULong();

}


void T_keypad::key0Clicked(void)
{
    myReturnString.append("0");
    if (keypad_NumberIsVisible)
    {
        myValueString.append("0");
    } else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::key1Clicked(void)
{
    myReturnString.append("1");
    if (keypad_NumberIsVisible)
    {
        myValueString.append("1");
    } else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::key2Clicked(void)
{
    myReturnString.append("2");
    if (keypad_NumberIsVisible)
    {
        myValueString.append("2");
    } else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::key3Clicked(void)
{
    myReturnString.append("3");
    if (keypad_NumberIsVisible)
    {

        myValueString.append("3");
    } else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::key4Clicked(void)
{
    myReturnString.append("4");
    if (keypad_NumberIsVisible)
    {
        myValueString.append("4");
    } else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::key5Clicked(void)
{
    myReturnString.append("5");
    if (keypad_NumberIsVisible)
    {
        myValueString.append("5");
    } else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::key6Clicked(void)
{
    myReturnString.append("6");
    if (keypad_NumberIsVisible)
    {
        myValueString.append("6");
    } else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::key7Clicked(void)
{
    myReturnString.append("7");
    if (keypad_NumberIsVisible)
    {
        myValueString.append("7");
    } else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::key8Clicked(void)
{
    myReturnString.append("8");
    if (keypad_NumberIsVisible)
        myValueString.append("8");
    else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::key9Clicked(void)
{
    myReturnString.append("9");
    if (keypad_NumberIsVisible)
        myValueString.append("9");
    else
        myValueString.append("*");
    valueDisplay->setText(myValueString);
}

void T_keypad::keyOkClicked(void)
{
    numPad->hide();
    emit keyEntryFinished();
}

void T_keypad::keyCancelClicked(void)
{
    myValueString.clear();
    myReturnString.clear();
    valueDisplay->clear();
    numPad->hide();
    emit keyEntryFinished();
}

void T_keypad::keySeeEntryClicked(void)
{

    if (keypad_visiKeyAllowed)
    {
        if (keypad_NumberIsVisible)
        {
            // dont want to see the entry, so overwrite number(s) with asteriks
            int len=myValueString.length();
            myValueString.clear();
            for (int nn=0; nn<len; nn++)
                myValueString.append('*');
            keypad_NumberIsVisible=false;
        } else
        {
            // wanna see entry from now
            // by now we have only *'s in myValueString
            // numbers are saved in "myReturnString"
            myValueString=myReturnString;
            keypad_NumberIsVisible=true;
        }
    }
    valueDisplay->setText(myValueString);
}

void T_keypad::keyAcClicked(void)
{
    myValueString.clear();
    myReturnString.clear();
    valueDisplay->clear();
}

void T_keypad::keyBsClicked(void)
{
    myValueString.chop(1);
    myReturnString.chop(1);
    valueDisplay->setText(myValueString);
}