ddWidget(button2, 2, 1, 1 ,1);
gridLayout->addWidget(button3, 2, 2, 1, 1);
gridLayout->addWidget(buttonadd, 2, 3, 1, 1);
gridLayout->addWidget(buttonsub, 2, 4, 1, 1);
gridLayout->addWidget(button4, 3, 0, 1, 1);
gridLayout->addWidget(button5, 3, 1, 1, 1);
gridLayout->addWidget(button6, 3, 2, 1, 1);
gridLayout->addWidget(buttonx, 3, 3, 1, 1);
gridLayout->addWidget(buttondivide, 3, 4, 1, 1);
gridLayout->addWidget(button7, 4, 0, 1, 1);
gridLayout->addWidget(button8, 4, 1, 1, 1);
gridLayout->addWidget(button9, 4, 2, 1, 1);
gridLayout->addWidget(buttonLArc, 4, 3, 1, 1);
gridLayout->addWidget(buttonRArc, 4, 4, 1, 1);
gridLayout->addWidget(button0, 5, 0, 1, 1);
gridLayout->addWidget(buttondot, 5, 1, 1, 1);
gridLayout->addWidget(buttonback, 5, 2, 1, 1);
gridLayout->addWidget(buttonclear, 5, 3, 1, 1);
gridLayout->addWidget(buttonequal, 5, 4, 1, 1);
setLayout(gridLayout);
initVector();
}
void Calculator::initConnect()
{
connect(button0, &QPushButton::clicked, this, &Calculator::getButton);
connect(button1, &QPushButton::clicked, this, &Calculator::getButton);
connect(button2, &QPushButton::clicked, this, &Calculator::getButton);
connect(button3, &QPushButton::clicked, this, &Calculator::getButton);
connect(button4, &QPushButton::clicked, this, &Calculator::getButton);
connect(button5, &QPushButton::clicked, this, &Calculator::getButton);
connect(button6, &QPushButton::clicked, this, &Calculator::getButton);
connect(button7, &QPushButton::clicked, this, &Calculator::getButton);
connect(button8, &QPushButton::clicked, this, &Calculator::getButton);
connect(button9, &QPushButton::clicked, this, &Calculator::getButton);
connect(buttonx, &QPushButton::clicked, this, &Calculator::getButton);
connect(buttonadd, &QPushButton::clicked, this, &Calculator::getButton);
connect(buttondivide, &QPushButton::clicked, this, &Calculator::getButton);
connect(buttondot, &QPushButton::clicked, this, &Calculator::getButton);
connect(buttonsub, &QPushButton::clicked, this, &Calculator::getButton);
connect(buttonRArc, &QPushButton::clicked, this, &Calculator::getButton);
connect(buttonLArc, &QPushButton::clicked, this, &Calculator::getButton);
connect(buttonback, &QPushButton::clicked, this, &Calculator::myBackSpace);
connect(buttonclear, &QPushButton::clicked, this, &Calculator::clearScreen);
connect(buttonequal, &QPushButton::clicked, this, &Calculator::getButton);
}
bool Calculator::isTwoOptr(QPushButton *button)
{
if(button == buttonadd || button ==buttonsub
|| button == buttonx || button == buttondivide)
return true;
else
return false;
}
void Calculator::myBackSpace()
{
QTextCursor cursor = screenTextEdit->textCursor();
cursor.deletePreviousChar();
if(!isEqualClicked)
vectorExp.pop_back();
}
void Calculator::getButton()
{
QPushButton* button = qobject_cast(sender());
if(isTwoOptrsFlag && isTwoOptr(button))
{
}
else{
vectorExp.append(button2char(button));
isEqualClicked = false;
isTwoOptrsFlag = false;
if(!isEnter)
screenTextEdit->append("");
screenTextEdit->insertPlainText(button->text());
isEnter = true;
if(button == buttonadd || button == buttonsub
|| button == buttonx || button == buttondivide)
isTwoOptrsFlag = true;
}
if(button == b |