Add Lesson 5 Task 3
This commit is contained in:
Stanislav Mykhailenko
parent
0172aee4af
commit
586e5e3258
GPG key ID:
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6 changed files with 579 additions and 0 deletions
74
Lesson_5/Task_3/.gitignore
vendored
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74
Lesson_5/Task_3/.gitignore
vendored
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@ -0,0 +1,74 @@
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# This file is used to ignore files which are generated
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# ----------------------------------------------------------------------------
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*~
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*.autosave
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*.a
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*.core
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*.moc
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*.o
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*.obj
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*.orig
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*.rej
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*.so
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*.so.*
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*_pch.h.cpp
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*_resource.rc
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*.qm
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.#*
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*.*#
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core
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!core/
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tags
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.DS_Store
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.directory
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*.debug
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Makefile*
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*.prl
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*.app
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moc_*.cpp
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ui_*.h
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qrc_*.cpp
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Thumbs.db
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*.res
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*.rc
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||||
/.qmake.cache
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/.qmake.stash
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# qtcreator generated files
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*.pro.user*
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CMakeLists.txt.user*
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# xemacs temporary files
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*.flc
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# Vim temporary files
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.*.swp
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# Visual Studio generated files
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*.ib_pdb_index
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*.idb
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*.ilk
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*.pdb
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*.sln
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*.suo
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*.vcproj
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*vcproj.*.*.user
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*.ncb
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*.sdf
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*.opensdf
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*.vcxproj
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*vcxproj.*
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# MinGW generated files
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*.Debug
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*.Release
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# Python byte code
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*.pyc
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# Binaries
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# --------
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*.dll
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*.exe
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24
Lesson_5/Task_3/Task_3.pro
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24
Lesson_5/Task_3/Task_3.pro
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QT += core gui
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greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
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CONFIG += c++17
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# You can make your code fail to compile if it uses deprecated APIs.
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# In order to do so, uncomment the following line.
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#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
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SOURCES += \
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main.cpp \
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calculator.cpp
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HEADERS += \
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calculator.h
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FORMS += \
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calculator.ui
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# Default rules for deployment.
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qnx: target.path = /tmp/$${TARGET}/bin
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else: unix:!android: target.path = /opt/$${TARGET}/bin
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!isEmpty(target.path): INSTALLS += target
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226
Lesson_5/Task_3/calculator.cpp
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226
Lesson_5/Task_3/calculator.cpp
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#include "calculator.h"
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#include "ui_calculator.h"
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Calculator::Calculator(QWidget *parent)
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: QMainWindow(parent)
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, ui(new Ui::Calculator)
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{
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ui->setupUi(this);
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connect(ui->b_0, &QPushButton::clicked, this, &Calculator::press0);
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connect(ui->b_1, &QPushButton::clicked, this, &Calculator::press1);
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connect(ui->b_2, &QPushButton::clicked, this, &Calculator::press2);
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connect(ui->b_3, &QPushButton::clicked, this, &Calculator::press3);
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connect(ui->b_4, &QPushButton::clicked, this, &Calculator::press4);
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connect(ui->b_5, &QPushButton::clicked, this, &Calculator::press5);
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connect(ui->b_6, &QPushButton::clicked, this, &Calculator::press6);
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connect(ui->b_7, &QPushButton::clicked, this, &Calculator::press7);
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connect(ui->b_8, &QPushButton::clicked, this, &Calculator::press8);
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connect(ui->b_9, &QPushButton::clicked, this, &Calculator::press9);
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connect(ui->b_add, &QPushButton::clicked, this, &Calculator::pressAdd);
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connect(ui->b_subtract, &QPushButton::clicked, this, &Calculator::pressSubtract);
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connect(ui->b_multiply, &QPushButton::clicked, this, &Calculator::pressMultiply);
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connect(ui->b_divide, &QPushButton::clicked, this, &Calculator::pressDivide);
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connect(ui->b_equals, &QPushButton::clicked, this, &Calculator::pressEquals);
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connect(ui->b_dot, &QPushButton::clicked, this, &Calculator::pressDot);
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connect(ui->b_ce, &QPushButton::clicked, this, &Calculator::pressCe);
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connect(ui->b_ac, &QPushButton::clicked, this, &Calculator::pressAc);
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}
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Calculator::~Calculator()
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{
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delete ui;
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}
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void Calculator::press0()
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{
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keyPressed("0");
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}
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void Calculator::press1()
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{
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keyPressed("1");
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}
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void Calculator::press2()
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{
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keyPressed("2");
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}
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void Calculator::press3()
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{
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keyPressed("3");
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}
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void Calculator::press4()
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{
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keyPressed("4");
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}
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void Calculator::press5()
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{
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keyPressed("5");
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}
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void Calculator::press6()
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{
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keyPressed("6");
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}
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void Calculator::press7()
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{
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keyPressed("7");
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}
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void Calculator::press8()
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{
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keyPressed("8");
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}
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void Calculator::press9()
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{
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keyPressed("9");
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}
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void Calculator::pressAdd()
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{
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keyPressed("+");
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}
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void Calculator::pressSubtract()
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{
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keyPressed("-");
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}
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void Calculator::pressMultiply()
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{
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keyPressed("*");
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}
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void Calculator::pressDivide()
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{
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keyPressed("/");
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}
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void Calculator::pressEquals()
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{
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keyPressed("=");
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}
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void Calculator::pressDot()
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{
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keyPressed(".");
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}
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void Calculator::pressCe()
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{
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keyPressed("CE");
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}
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void Calculator::pressAc()
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{
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keyPressed("AC");
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}
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bool Calculator::isDigit(QString value)
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{
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if (value == "0"
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|| value == "1"
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|| value == "2"
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|| value == "3"
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|| value == "4"
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|| value == "5"
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|| value == "6"
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|| value == "7"
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|| value == "8"
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|| value == "9"
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)
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return true;
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return false;
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}
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bool Calculator::isOperator(QString value)
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{
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if (value == "+"
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|| value == "-"
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|| value == "*"
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|| value == "/"
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|| value == "="
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)
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return true;
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return false;
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}
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void Calculator::calculate(bool clearOperand)
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{
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m_operand2 = ui->e_display->text().toFloat();
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if (m_operator == '+')
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m_operand1 = m_operand1 + m_operand2;
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else if (m_operator == '-')
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m_operand1 = m_operand1 - m_operand2;
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else if (m_operator == '*')
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m_operand1 = m_operand1 * m_operand2;
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else if (m_operator == '/')
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m_operand1 = m_operand1 / m_operand2;
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ui->e_display->setText(QString::number(m_operand1));
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m_done = true;
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if (clearOperand)
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m_operand1Set = false;
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}
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void Calculator::clearIfDone()
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{
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if (m_done) {
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ui->e_display->setText("0");
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m_done = false;
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}
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}
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void Calculator::keyPressed(QString keyName)
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{
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if (isDigit(keyName)) {
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clearIfDone();
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if (ui->e_display->text() == "0")
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ui->e_display->setText(keyName);
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else
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ui->e_display->setText(ui->e_display->text() + keyName);
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}
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else if (keyName == ".") {
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clearIfDone();
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if (ui->e_display->text().contains("."))
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return;
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ui->e_display->setText(ui->e_display->text() + keyName);
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}
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else if (isOperator(keyName)) {
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if (!m_operand1Set && keyName != "=") {
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m_operand1Set = true;
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m_operand1 = ui->e_display->text().toFloat();
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m_operator = QChar(keyName[0]);
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ui->e_display->setText("0");
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} else if (m_operand1Set && !m_done) {
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if (keyName == "=")
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calculate(true);
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else {
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calculate(false);
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m_operator = QChar(keyName[0]);
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}
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}
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}
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else if (keyName == "CE") {
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QString text = ui->e_display->text();
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if (text.size() > 1)
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text.chop(1);
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else
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text = "0";
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ui->e_display->setText(text);
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}
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else if (keyName == "AC") {
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ui->e_display->setText("0");
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m_operand1Set = false;
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m_done = false;
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}
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}
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54
Lesson_5/Task_3/calculator.h
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54
Lesson_5/Task_3/calculator.h
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#ifndef CALCULATOR_H
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#define CALCULATOR_H
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#include <QMainWindow>
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QT_BEGIN_NAMESPACE
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namespace Ui {
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class Calculator;
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}
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QT_END_NAMESPACE
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class Calculator : public QMainWindow
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{
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Q_OBJECT
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public:
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Calculator(QWidget *parent = nullptr);
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~Calculator();
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private slots:
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void press0();
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void press1();
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void press2();
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void press3();
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void press4();
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void press5();
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void press6();
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void press7();
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void press8();
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void press9();
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void pressAdd();
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void pressSubtract();
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void pressMultiply();
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void pressDivide();
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void pressEquals();
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void pressDot();
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void pressCe();
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void pressAc();
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bool isDigit(QString);
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bool isOperator(QString);
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void calculate(bool);
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void clearIfDone();
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private:
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Ui::Calculator *ui;
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void keyPressed(QString);
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float m_operand1;
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bool m_operand1Set = false;
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float m_operand2;
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QChar m_operator = 0;
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bool m_done = false;
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};
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#endif // CALCULATOR_H
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190
Lesson_5/Task_3/calculator.ui
Normal file
190
Lesson_5/Task_3/calculator.ui
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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>Calculator</class>
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<widget class="QMainWindow" name="Calculator">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>358</width>
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<height>256</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>Calculator</string>
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</property>
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<widget class="QWidget" name="centralwidget">
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<layout class="QVBoxLayout" name="verticalLayout">
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<item>
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<layout class="QHBoxLayout" name="horizontalLayout_5">
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<item>
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<widget class="QLineEdit" name="e_display">
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<property name="text">
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<string>0</string>
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</property>
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<property name="readOnly">
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<bool>true</bool>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_ce">
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<property name="text">
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<string>CE</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_ac">
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<property name="text">
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<string>AC</string>
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</property>
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</widget>
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</item>
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</layout>
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</item>
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<item>
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<layout class="QHBoxLayout" name="horizontalLayout">
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<item>
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<widget class="QPushButton" name="b_7">
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<property name="text">
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<string>7</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_8">
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<property name="text">
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<string>8</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_9">
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<property name="text">
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<string>9</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_divide">
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<property name="text">
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<string>/</string>
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</property>
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</widget>
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</item>
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</layout>
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</item>
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<item>
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<layout class="QHBoxLayout" name="horizontalLayout_2">
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<item>
|
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<widget class="QPushButton" name="b_4">
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<property name="text">
|
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<string>4</string>
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</property>
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</widget>
|
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</item>
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<item>
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<widget class="QPushButton" name="b_5">
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<property name="text">
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<string>5</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_6">
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<property name="text">
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<string>6</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_multiply">
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<property name="text">
|
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<string>*</string>
|
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</property>
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</widget>
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</item>
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</layout>
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</item>
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<item>
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<layout class="QHBoxLayout" name="horizontalLayout_3">
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<item>
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<widget class="QPushButton" name="b_1">
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<property name="text">
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<string>1</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_2">
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<property name="text">
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<string>2</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_3">
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<property name="text">
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<string>3</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="b_subtract">
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<property name="text">
|
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<string>-</string>
|
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</property>
|
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</widget>
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</item>
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||||
</layout>
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||||
</item>
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<item>
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<layout class="QHBoxLayout" name="horizontalLayout_4">
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<item>
|
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<widget class="QPushButton" name="b_0">
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<property name="text">
|
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<string>0</string>
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</property>
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</widget>
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</item>
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<item>
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||||
<widget class="QPushButton" name="b_dot">
|
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<property name="text">
|
||||
<string>.</string>
|
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</property>
|
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</widget>
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</item>
|
||||
<item>
|
||||
<widget class="QPushButton" name="b_equals">
|
||||
<property name="text">
|
||||
<string>=</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item>
|
||||
<widget class="QPushButton" name="b_add">
|
||||
<property name="text">
|
||||
<string>+</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
</layout>
|
||||
</item>
|
||||
</layout>
|
||||
</widget>
|
||||
<widget class="QMenuBar" name="menubar">
|
||||
<property name="geometry">
|
||||
<rect>
|
||||
<x>0</x>
|
||||
<y>0</y>
|
||||
<width>358</width>
|
||||
<height>25</height>
|
||||
</rect>
|
||||
</property>
|
||||
</widget>
|
||||
<widget class="QStatusBar" name="statusbar"/>
|
||||
</widget>
|
||||
<resources/>
|
||||
<connections/>
|
||||
</ui>
|
||||
11
Lesson_5/Task_3/main.cpp
Normal file
11
Lesson_5/Task_3/main.cpp
Normal file
|
|
@ -0,0 +1,11 @@
|
|||
#include "calculator.h"
|
||||
|
||||
#include <QApplication>
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
QApplication a(argc, argv);
|
||||
Calculator w;
|
||||
w.show();
|
||||
return a.exec();
|
||||
}
|
||||
Reference in a new issue