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normalview.cpp
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#include "normalview.h"
NormalView::NormalView(QWidget *parent) : QWidget(parent)
{
initAll();
memory = 0;
_memory = false;
//layout
layoutNormal = new QGridLayout;
this->setLayout(layoutNormal);
labelNormalSolution = new QLabel;
labelNormalSolution->setAlignment(Qt::AlignRight | Qt::AlignCenter);
labelNormalSolution->setMinimumHeight(80);
labelNormalSolution->setObjectName("labelSolution");
labelNormalTemp = new QLabel;
labelNormalTemp->setAlignment(Qt::AlignRight | Qt::AlignCenter);
labelNormalTemp->setMinimumHeight(30);
labelNormalTemp->setObjectName("labelTemp");
solutionRefresh(0);
for (int i = 0; i < 10; i++) {
btnNormal[i] = new QPushButton(tr("%1").arg(i));
}
btnNormal[10] = new QPushButton(tr("."));
btnNormal[11] = new QPushButton(tr("±"));
btnNormal[12] = new QPushButton(tr("+"));
btnNormal[13] = new QPushButton(tr("-"));
btnNormal[14] = new QPushButton(tr("×"));
btnNormal[15] = new QPushButton(tr("÷"));
btnNormal[16] = new QPushButton(tr("="));
btnNormal[17] = new QPushButton(tr("CE"));
btnNormal[18] = new QPushButton(tr("AC"));
btnNormal[19] = new QPushButton(tr("Backspace"));
btnNormal[20] = new QPushButton(tr("MC"));
btnNormal[21] = new QPushButton(tr("MR"));
btnNormal[22] = new QPushButton(tr("M+"));
btnNormal[23] = new QPushButton(tr("M-"));
btnNormal[24] = new QPushButton(tr("MS"));
for (int i = 0; i < 25; i++) {
btnNormal[i] ->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
if (i < 10) {
btnNormal[i]->setObjectName("btnNum");
}
else if (i > 11 && i < 17){
btnNormal[i]->setObjectName("btnOp");
}
else {
btnNormal[i]->setObjectName("btnOther");
}
}
memoryEnabled(false);
layoutNormal->addWidget(labelNormalTemp, 0, 0, 1, 5);
layoutNormal->addWidget(labelNormalSolution, 1, 0, 1, 5);
layoutNormal->addWidget(btnNormal[24], 2, 0, 1, 1);
layoutNormal->addWidget(btnNormal[22], 3, 0, 1, 1);
layoutNormal->addWidget(btnNormal[23], 4, 0, 1, 1);
layoutNormal->addWidget(btnNormal[21], 5, 0, 1, 1);
layoutNormal->addWidget(btnNormal[20], 6, 0, 1, 1);
layoutNormal->addWidget(btnNormal[17], 2, 1, 1, 1);
layoutNormal->addWidget(btnNormal[18], 2, 2, 1, 1);
layoutNormal->addWidget(btnNormal[19], 2, 3, 1, 1);
layoutNormal->addWidget(btnNormal[12], 2, 4, 1, 1);
layoutNormal->addWidget(btnNormal[13], 3, 4, 1, 1);
layoutNormal->addWidget(btnNormal[14], 4, 4, 1, 1);
layoutNormal->addWidget(btnNormal[15], 5, 4, 1, 1);
layoutNormal->addWidget(btnNormal[16], 6, 4, 1, 1);
layoutNormal->addWidget(btnNormal[10], 6, 3, 1, 1);
layoutNormal->addWidget(btnNormal[11], 6, 1, 1, 1);
layoutNormal->addWidget(btnNormal[0], 6, 2, 1, 1);
for (int i = 0, btn = 1; i < 3; i++) {
for (int j = 0; j < 3; j++) {
layoutNormal->addWidget(btnNormal[btn], 5 - i, 1 + j, 1, 1);
btn++;
}
}
//shortcuts
for (int i = 0; i < 10; i++) {
btnNormal[i]->setShortcut(QKeySequence(tr("%1").arg(i)));
}
btnNormal[10]->setShortcut(QKeySequence(tr(".")));
btnNormal[12]->setShortcut(QKeySequence(tr("+")));
btnNormal[13]->setShortcut(QKeySequence(tr("-")));
btnNormal[14]->setShortcut(QKeySequence(tr("*")));
btnNormal[15]->setShortcut(QKeySequence(tr("/")));
btnNormal[16]->setShortcut(QKeySequence(Qt::Key_Return));
QShortcut *key_Enter = new QShortcut(QKeySequence(Qt::Key_Enter),this);
connect(key_Enter, &QShortcut::activated, btnNormal[16], &QPushButton::click);
btnNormal[19]->setShortcut(QKeySequence(Qt::Key_Backspace));
//click events
//1-9
for (int i = 1; i < 10; i++) {
connect(btnNormal[i], &QPushButton::clicked, [=](){
inputText.append(tr("%1").arg(i));
_solution = false;
solutionRefresh(1);
});
}
//0
connect(btnNormal[0], &QPushButton::clicked, [=](){
if (inputText.isEmpty()) {
inputText.append("0");
}
else if (inputText.count('0') != inputText.size()) {
inputText.append("0");
}
_solution = false;
solutionRefresh(1);
});
//.
connect(btnNormal[10], &QPushButton::clicked, [=](){
if (inputText.isEmpty()) {
inputText.append("0.");
}
else if (!inputText.contains('.')) {
inputText.append(".");
}
_solution = false;
solutionRefresh(1);
});
//±
connect(btnNormal[11], &QPushButton::clicked, [=](){
if (inputText.isEmpty()) {
if (!_op1) {
solution = 0 - solution;
solutionRefresh(3);
}
}
else if (inputText.size() > 1) {
if (inputText.at(0) == '-') {
inputText.remove(0, 1);
}
else {
inputText.prepend('-');
}
solutionRefresh(1);
}
else if (inputText.at(0) != '0') {
inputText.prepend('-');
solutionRefresh(1);
}
});
//+-×÷
for (int i = 12; i < 16; i++) {
connect(btnNormal[i], &QPushButton::clicked, [=](){
if (inputText.isEmpty()) {
operation = i - 11;
if (_op1) {
tempText.replace(tempText.size() - 1, btnNormal[i]->text());
}
else if (_solution){
op1 = solution;
_op1 = true;
_solution = false;
tempText.append(tr("%1 ").arg(op1));
tempText.append(btnNormal[i]->text());
}
}
else {
if (_op1) {
op2 = inputText.toDouble();
_op2 = true;
calculate();
_solution = true;
op1 = solution;
_op1 = true;
op2 = 0;
_op2 = false;
operation = i - 11;
inputText.clear();
tempText.clear();
tempText.append(tr("%1 ").arg(op1));
tempText.append(btnNormal[i]->text());
}
else {
operation = i - 11;
tempText.append(inputText);
tempText.append(tr(" "));
tempText.append(btnNormal[i]->text());
op1 = inputText.toDouble();
_op1 = true;
inputText.clear();
}
}
solutionRefresh(2);
});
}
//=
connect(btnNormal[16], &QPushButton::clicked, [=](){
if (inputText.isEmpty()) {
if (_op1 && !_op2) {
op2 = op1;
_op2 = true;
calculate();
solutionRefresh(3);
initWithoutSolution();
}
else if (_op1 && _op2) {
calculate();
solutionRefresh(3);
initWithoutSolution();
}
// else {
// solutionRefresh(3);
// initWithoutSolution();
// }
}
else {
if (_op1) {
op2 = inputText.toDouble();
_op2 = true;
calculate();
solutionRefresh(3);
}
else {
solution = inputText.toDouble();
solutionRefresh(3);
}
initWithoutSolution();
}
_solution = !divisionByZero;
});
//CE
connect(btnNormal[17], &QPushButton::clicked, [=](){
inputText.clear();
_solution = false;
solutionRefresh(4);
});
//AC
connect(btnNormal[18], &QPushButton::clicked, [=](){
initAll();
solutionRefresh(0);
});
//Backspace
connect(btnNormal[19], &QPushButton::clicked, [=](){
if (inputText.size() > 1) {
inputText.remove(inputText.size() - 1, 1);
solutionRefresh(1);
}
else if (inputText.size() == 1) {
inputText.clear();
_solution = false;
solutionRefresh(4);
}
});
//MC memory clear
connect(btnNormal[20], &QPushButton::clicked, [=](){
memory = 0;
_memory = false;
memoryEnabled(false);
});
//MR memory represent
connect(btnNormal[21], &QPushButton::clicked, [=](){
inputText.clear();
solution = memory;
if (_op1) {
op2 = memory;
_op2 = true;
}
else {
solution = memory;
_solution = true;
}
solutionRefresh(5);
});
//M+ memory plus
connect(btnNormal[22], &QPushButton::clicked, [=](){
if (_solution) {
memory += solution;
_memory = true;
}
else {
memory += inputText.toDouble();
_memory = true;
inputText.clear();
tempText.clear();
}
memoryEnabled(true);
// else if (!_op1) {
// memory += inputText.toDouble();
// _memory = true;
// inputText.clear();
// tempText.clear();
// }
// else {
// btnNormal[16]->click();
// memory += solution;
// _memory = true;
// }
});
//M- memory minus
connect(btnNormal[23], &QPushButton::clicked, [=](){
if (_solution) {
memory -= solution;
_memory = true;
}
else {
memory -= inputText.toDouble();
_memory = true;
inputText.clear();
tempText.clear();
}
memoryEnabled(true);
// else if (!_op1) {
// memory -= inputText.toDouble();
// _memory = true;
// inputText.clear();
// tempText.clear();
// }
// else {
// btnNormal[16]->click();
// memory -= solution;
// _memory = true;
// }
});
//MS memory set
connect(btnNormal[24], &QPushButton::clicked, [=](){
if (_solution) {
memory = solution;
_memory = true;
}
else {
memory = inputText.toDouble();
_memory = true;
inputText.clear();
tempText.clear();
}
memoryEnabled(true);
// else if (!_op1) {
// memory = inputText.toDouble();
// _memory = true;
// inputText.clear();
// tempText.clear();
// }
// else {
// btnNormal[16]->click();
// memory = solution;
// _memory = true;
// }
});
QFile qssFile(":/qss/qss/Normal_View.qss");
qssFile.open(QFile::ReadOnly);
this->setStyleSheet(qssFile.readAll());
qssFile.close();
}
void NormalView::initAll() {
solution = 0.0;
_solution = false;
tempText.clear();
inputText.clear();
op1 = 0.0;
_op1 = false;
op2 = 0.0;
_op2 = false;
operation = 1;
divisionByZero = false;
}
void NormalView::initWithoutSolution() {
tempText.clear();
inputText.clear();
op1 = 0.0;
_op1 = false;
op2 = 0.0;
_op2 = false;
operation = 1;
divisionByZero = false;
}
void NormalView::setHistoryView(HistoryView *h) {
this->history = h;
}
HistoryView *NormalView::historyView() {
return history;
}
void NormalView::memoryEnabled(bool _memory) {
if (_memory) {
btnNormal[20]->setEnabled(true);
btnNormal[21]->setEnabled(true);
}
else {
btnNormal[20]->setEnabled(false);
btnNormal[21]->setEnabled(false);
}
}
void NormalView::solutionRefresh(int mode) {
if (divisionByZero) {
labelNormalSolution->setText("FNMDX!");
labelNormalTemp->setText("");
divisionByZero = false;
return;
}
switch (mode) {
case 0:
labelNormalSolution->setText("0");
labelNormalTemp->setText("");
break;
case 1:
labelNormalSolution->setText(inputText);
labelNormalTemp->setText(tempText);
break;
case 2:
labelNormalSolution->setText(tr("%1").arg(op1));
labelNormalTemp->setText(tempText);
break;
case 3:
labelNormalSolution->setText(tr("%1").arg(solution));
labelNormalTemp->setText("");
break;
case 4:
labelNormalSolution->setText("0");
labelNormalTemp->setText(tempText);
break;
case 5:
labelNormalSolution->setText(tr("%1").arg(solution));
labelNormalTemp->setText(tempText);
break;
}
}
double NormalView::calculate() {
switch (operation) {
case 1:
solution = op1 + op2;
break;
case 2:
solution = op1 - op2;
break;
case 3:
solution = op1 * op2;
break;
case 4:
if (fabs(op2) > DBL_EPSILON) {
solution = op1 / op2;
}
else {
divisionByZero = true;
solution = 0.0;
}
break;
}
if (!divisionByZero) {
history->addHistory(op1, op2, operation, solution);
}
return solution;
}