Day3 教学示例：增强版计算器接入 + QMainWindow/QSS 两版参考实现
- calculator_designer_ext（Day2 增强版：表达式求值 + 括号，递归下降解析器）接入 cmake - calculator_mainwindow（Day3 上午）：增强版计算器装进 QMainWindow， 菜单/状态栏/历史停靠窗，纯代码 + 显式 connect，与 mainwindow_showcase 形成坑卡对照 - calculator_mainwindow_qss（Day3 下午）：上午版 + QSS 双主题美化（按键分色/伪状态/深浅切换） - 验证 mainwindow_showcase（QMainWindow 六大组件综合演示，.ui + .qrc） - OUTLINE_4DAY.md / ASSIGNMENTS.md Day3 衔接增强版起点 + 参考实现指引 - 补提交 Day2 calculator/ 与 calculator_designer/ 参考实现（CMakeLists 已引用） - 全量构建 28/28，4 目标离屏自测退出码 0 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
张宗平
@@ -0,0 +1,49 @@
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cmake_minimum_required(VERSION 3.5)
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project(Calculator LANGUAGES CXX)
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set(CMAKE_INCLUDE_CURRENT_DIR ON)
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set(CMAKE_AUTOUIC ON)
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set(CMAKE_AUTOMOC ON)
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set(CMAKE_AUTORCC ON)
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set(CMAKE_CXX_STANDARD 11)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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# QtCreator supports the following variables for Android, which are identical to qmake Android variables.
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# Check http://doc.qt.io/qt-5/deployment-android.html for more information.
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# They need to be set before the find_package(Qt5 ...) call.
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#if(ANDROID)
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# set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
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# if (ANDROID_ABI STREQUAL "armeabi-v7a")
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# set(ANDROID_EXTRA_LIBS
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# ${CMAKE_CURRENT_SOURCE_DIR}/path/to/libcrypto.so
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# ${CMAKE_CURRENT_SOURCE_DIR}/path/to/libssl.so)
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# endif()
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#endif()
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find_package(Qt5 COMPONENTS Widgets REQUIRED)
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if(ANDROID)
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add_library(Calculator SHARED
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main.cpp
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calculatordesigner.h
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calculatordesigner.cpp
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expressionevaluator.h
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expressionevaluator.cpp
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widget.ui
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)
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else()
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add_executable(Calculator
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main.cpp
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calculatordesigner.h
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calculatordesigner.cpp
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expressionevaluator.h
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expressionevaluator.cpp
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widget.ui
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)
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endif()
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target_link_libraries(Calculator PRIVATE Qt5::Widgets)
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@@ -0,0 +1,229 @@
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#include "calculatordesigner.h"
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#include <QPushButton>
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#include "expressionevaluator.h"
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#include "ui_widget.h"
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namespace {
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bool isOperatorChar(QChar ch) {
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return ch == QLatin1Char('+') || ch == QLatin1Char('-') ||
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ch == QLatin1Char('*') || ch == QLatin1Char('/');
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}
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bool isDigitOrDotChar(QChar ch) {
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return ch.isDigit() || ch == QLatin1Char('.');
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}
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} // namespace
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CalculatorDesigner::CalculatorDesigner(QWidget* parent)
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: QWidget(parent), ui(new Ui::CalculatorForm) {
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ui->setupUi(this); // 表单里的控件树 + QGridLayout 全部由 Designer XML 建好
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connect(ui->btn0, &QPushButton::clicked, this, [this] { onDigit(0); });
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connect(ui->btn1, &QPushButton::clicked, this, [this] { onDigit(1); });
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connect(ui->btn2, &QPushButton::clicked, this, [this] { onDigit(2); });
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connect(ui->btn3, &QPushButton::clicked, this, [this] { onDigit(3); });
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connect(ui->btn4, &QPushButton::clicked, this, [this] { onDigit(4); });
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connect(ui->btn5, &QPushButton::clicked, this, [this] { onDigit(5); });
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connect(ui->btn6, &QPushButton::clicked, this, [this] { onDigit(6); });
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connect(ui->btn7, &QPushButton::clicked, this, [this] { onDigit(7); });
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connect(ui->btn8, &QPushButton::clicked, this, [this] { onDigit(8); });
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connect(ui->btn9, &QPushButton::clicked, this, [this] { onDigit(9); });
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connect(ui->btnDot, &QPushButton::clicked, this, [this] { onDot(); });
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connect(ui->btnPlus, &QPushButton::clicked, this, [this] { onOperator(QLatin1Char('+')); });
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connect(ui->btnMinus, &QPushButton::clicked, this, [this] { onOperator(QLatin1Char('-')); });
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connect(ui->btnMul, &QPushButton::clicked, this, [this] { onOperator(QLatin1Char('*')); });
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connect(ui->btnDiv, &QPushButton::clicked, this, [this] { onOperator(QLatin1Char('/')); });
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connect(ui->btnLeftParen, &QPushButton::clicked, this, &CalculatorDesigner::onLeftParen);
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connect(ui->btnRightParen, &QPushButton::clicked, this, &CalculatorDesigner::onRightParen);
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connect(ui->btnEquals, &QPushButton::clicked, this, &CalculatorDesigner::onEquals);
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connect(ui->btnClear, &QPushButton::clicked, this, &CalculatorDesigner::onClear);
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connect(ui->btnBackspace, &QPushButton::clicked, this, &CalculatorDesigner::onBackspace);
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onClear();
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}
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CalculatorDesigner::~CalculatorDesigner() { delete ui; }
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void CalculatorDesigner::onDigit(int digit) {
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if (m_error) onClear();
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if (m_resultShown) {
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m_expression.clear();
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m_openParenCount = 0;
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m_resultShown = false;
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}
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const QString token = currentOperandToken();
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if (token == QStringLiteral("0")) {
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m_expression.chop(1); // 用新数字替换孤立的前导 0，避免出现 "007"
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} else if (currentOperandDigitCount() >= kMaxOperandLength) {
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return; // 达到单个运算数的长度上限，忽略后续数字
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}
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if (m_expression.size() >= kMaxExpressionLength) return;
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m_expression.append(QString::number(digit));
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refreshDisplays();
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}
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void CalculatorDesigner::onDot() {
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if (m_error) onClear();
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if (m_resultShown) {
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m_expression.clear();
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m_openParenCount = 0;
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m_resultShown = false;
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}
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const QString token = currentOperandToken();
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if (token.contains(QLatin1Char('.'))) return; // 当前运算数已有小数点
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const int appended = token.isEmpty() ? 2 : 1; // 空token时需要补一个前导 0
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if (m_expression.size() + appended > kMaxExpressionLength) return;
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if (token.isEmpty()) m_expression.append(QLatin1Char('0'));
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m_expression.append(QLatin1Char('.'));
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refreshDisplays();
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}
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void CalculatorDesigner::onOperator(QChar op) {
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if (m_error) return;
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if (m_resultShown) {
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m_expression = m_lastResultText;
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m_resultShown = false;
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}
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if (m_expression.isEmpty()) {
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if (op != QLatin1Char('-')) return; // 表达式开头只允许负号（单目负号）
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} else {
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const QChar last = m_expression.at(m_expression.size() - 1);
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if (last == QLatin1Char('(')) {
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if (op != QLatin1Char('-')) return; // 左括号后只允许负号
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} else if (isOperatorChar(last)) {
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m_expression.chop(1); // 连续按运算符时，用新的运算符替换上一个
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}
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}
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if (m_expression.size() >= kMaxExpressionLength) return;
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m_expression.append(op);
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refreshDisplays();
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}
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void CalculatorDesigner::onLeftParen() {
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if (m_error) onClear();
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if (m_resultShown) {
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m_expression.clear();
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m_openParenCount = 0;
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m_resultShown = false;
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}
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if (!m_expression.isEmpty()) {
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const QChar last = m_expression.at(m_expression.size() - 1);
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if (!isOperatorChar(last) && last != QLatin1Char('(')) {
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return; // 数字或右括号后不支持隐式乘法，忽略
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}
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}
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if (m_expression.size() >= kMaxExpressionLength) return;
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m_expression.append(QLatin1Char('('));
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++m_openParenCount;
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refreshDisplays();
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}
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void CalculatorDesigner::onRightParen() {
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if (m_error) return;
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if (m_resultShown) return;
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if (m_openParenCount <= 0 || m_expression.isEmpty()) return;
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const QChar last = m_expression.at(m_expression.size() - 1);
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if (isOperatorChar(last) || last == QLatin1Char('(')) return; // 括号内需要完整子表达式
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if (m_expression.size() >= kMaxExpressionLength) return;
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m_expression.append(QLatin1Char(')'));
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--m_openParenCount;
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refreshDisplays();
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}
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void CalculatorDesigner::onEquals() {
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if (m_error) return;
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if (m_expression.isEmpty()) return;
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QString toEvaluate = m_expression;
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for (int i = 0; i < m_openParenCount; ++i) toEvaluate.append(QLatin1Char(')')); // 自动补全未闭合括号
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const ExpressionEvaluator::Result result = ExpressionEvaluator::evaluate(toEvaluate);
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if (!result.ok) {
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showError();
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return;
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}
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const QString resultText = QString::number(result.value, 'g', ExpressionEvaluator::kResultPrecision);
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m_expression = toEvaluate;
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m_lastResultText = resultText;
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m_openParenCount = 0;
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m_resultShown = true;
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ui->expressionEdit->setPlainText(m_expression + QStringLiteral(" = ") + resultText);
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ui->display->setText(resultText);
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}
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void CalculatorDesigner::onClear() {
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m_expression.clear();
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m_lastResultText.clear();
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m_openParenCount = 0;
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m_resultShown = false;
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m_error = false;
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ui->expressionEdit->clear();
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ui->display->setText(QStringLiteral("0"));
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}
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void CalculatorDesigner::onBackspace() {
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if (m_error) { onClear(); return; }
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if (m_resultShown) return; // 结果已展示，需先清空或继续输入新表达式
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if (m_expression.isEmpty()) return;
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const QChar removed = m_expression.at(m_expression.size() - 1);
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m_expression.chop(1);
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if (removed == QLatin1Char('(')) --m_openParenCount;
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else if (removed == QLatin1Char(')')) ++m_openParenCount;
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refreshDisplays();
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}
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QString CalculatorDesigner::displayText() const { return ui->display->text(); }
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QString CalculatorDesigner::expressionText() const { return ui->expressionEdit->toPlainText(); }
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QString CalculatorDesigner::currentOperandToken() const {
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int start = m_expression.size();
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while (start > 0 && isDigitOrDotChar(m_expression.at(start - 1))) --start;
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return m_expression.mid(start);
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}
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int CalculatorDesigner::currentOperandDigitCount() const {
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const QString token = currentOperandToken();
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int count = 0;
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for (const QChar ch : token) {
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if (ch.isDigit()) ++count;
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}
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return count;
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}
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QString CalculatorDesigner::lastNumberToken() const {
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int end = m_expression.size();
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while (end > 0 && !isDigitOrDotChar(m_expression.at(end - 1))) --end; // 跳过末尾的运算符/括号
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int start = end;
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while (start > 0 && isDigitOrDotChar(m_expression.at(start - 1))) --start;
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return m_expression.mid(start, end - start);
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}
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void CalculatorDesigner::refreshDisplays() {
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ui->expressionEdit->setPlainText(m_expression);
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const QString token = lastNumberToken();
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ui->display->setText(token.isEmpty() ? QStringLiteral("0") : token);
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}
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void CalculatorDesigner::showError() {
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ui->display->setText(QStringLiteral("Error"));
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m_error = true;
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}
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@@ -0,0 +1,52 @@
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#pragma once
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#include <QChar>
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#include <QString>
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#include <QWidget>
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QT_BEGIN_NAMESPACE
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namespace Ui {
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class CalculatorForm;
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}
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QT_END_NAMESPACE
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class CalculatorDesigner : public QWidget {
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Q_OBJECT
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public:
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explicit CalculatorDesigner(QWidget* parent = nullptr);
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~CalculatorDesigner() override;
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// 供自测直接调用，效果等价于点击对应按钮；逻辑与 ../calculator/ 版一字不差。
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void onDigit(int digit);
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void onDot();
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void onOperator(QChar op);
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void onLeftParen();
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void onRightParen();
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void onEquals();
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void onClear();
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void onBackspace();
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QString displayText() const;
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QString expressionText() const;
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private:
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// 单个运算数（数字串）允许的最大长度，要求不得小于 10 位。
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static constexpr int kMaxOperandLength = 15;
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static_assert(kMaxOperandLength >= 10, "单个运算数的最大长度不得小于 10 位");
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// 表达式总长度上限，要求不得低于 100 个字符。
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static constexpr int kMaxExpressionLength = 200;
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static_assert(kMaxExpressionLength >= 100, "表达式总长度上限不得低于 100 个字符");
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QString currentOperandToken() const;
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int currentOperandDigitCount() const;
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QString lastNumberToken() const;
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void refreshDisplays();
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void showError();
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Ui::CalculatorForm* ui;
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QString m_expression; // 当前正在编辑的表达式，例如 "12+3*(4-2"
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QString m_lastResultText; // 上一次成功计算得到的结果文本
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int m_openParenCount = 0; // 尚未闭合的左括号数量
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bool m_resultShown = false; // 显示区当前展示的是计算结果而非正在输入的数字
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bool m_error = false;
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};
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@@ -0,0 +1,144 @@
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#include "expressionevaluator.h"
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namespace {
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// 递归下降解析器：expression := term (('+'|'-') term)*
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// term := factor (('*'|'/') factor)*
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// factor := ('+'|'-') factor | '(' expression ')' | number
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// 括号会先被完整求值，天然实现"优先级提升"；乘除法在 term 层处理，
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// 天然高于 expression 层的加减法。
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class Parser {
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public:
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explicit Parser(const QString& text) : m_text(text) {}
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ExpressionEvaluator::Result parse() {
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ExpressionEvaluator::Result result;
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skipSpaces();
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if (atEnd()) {
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result.errorMessage = QStringLiteral("表达式为空");
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return result;
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}
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bool ok = true;
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const double value = parseExpression(ok);
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skipSpaces();
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if (!ok) {
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result.errorMessage = m_error;
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return result;
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}
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if (!atEnd()) {
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result.errorMessage = QStringLiteral("表达式包含无法识别的字符");
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return result;
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}
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result.ok = true;
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result.value = value;
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return result;
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}
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private:
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double parseExpression(bool& ok) {
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double value = parseTerm(ok);
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while (ok) {
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skipSpaces();
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if (peek() == QLatin1Char('+')) {
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advance();
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value += parseTerm(ok);
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} else if (peek() == QLatin1Char('-')) {
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advance();
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value -= parseTerm(ok);
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} else {
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break;
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}
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}
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return value;
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}
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double parseTerm(bool& ok) {
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double value = parseFactor(ok);
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while (ok) {
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skipSpaces();
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if (peek() == QLatin1Char('*')) {
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advance();
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value *= parseFactor(ok);
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} else if (peek() == QLatin1Char('/')) {
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advance();
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const double rhs = parseFactor(ok);
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if (!ok) return 0.0;
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if (rhs == 0.0) {
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fail(QStringLiteral("除数不能为零"), ok);
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return 0.0;
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}
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value /= rhs;
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} else {
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break;
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}
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}
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return value;
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}
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double parseFactor(bool& ok) {
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skipSpaces();
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if (peek() == QLatin1Char('+')) {
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advance();
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return parseFactor(ok);
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}
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if (peek() == QLatin1Char('-')) {
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advance();
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return -parseFactor(ok);
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}
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if (peek() == QLatin1Char('(')) {
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advance();
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const double value = parseExpression(ok);
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if (!ok) return 0.0;
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skipSpaces();
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if (peek() != QLatin1Char(')')) {
|
||||
fail(QStringLiteral("括号不匹配"), ok);
|
||||
return 0.0;
|
||||
}
|
||||
advance();
|
||||
return value;
|
||||
}
|
||||
return parseNumber(ok);
|
||||
}
|
||||
|
||||
double parseNumber(bool& ok) {
|
||||
skipSpaces();
|
||||
const int start = m_pos;
|
||||
bool hasDigits = false;
|
||||
while (!atEnd() && peek().isDigit()) { advance(); hasDigits = true; }
|
||||
if (!atEnd() && peek() == QLatin1Char('.')) {
|
||||
advance();
|
||||
while (!atEnd() && peek().isDigit()) { advance(); hasDigits = true; }
|
||||
}
|
||||
if (!hasDigits) {
|
||||
fail(QStringLiteral("表达式格式错误，缺少数字"), ok);
|
||||
return 0.0;
|
||||
}
|
||||
const QString token = m_text.mid(start, m_pos - start);
|
||||
bool numOk = false;
|
||||
const double value = token.toDouble(&numOk);
|
||||
if (!numOk) {
|
||||
fail(QStringLiteral("数字格式错误"), ok);
|
||||
return 0.0;
|
||||
}
|
||||
return value;
|
||||
}
|
||||
|
||||
void skipSpaces() { while (!atEnd() && peek().isSpace()) advance(); }
|
||||
bool atEnd() const { return m_pos >= m_text.size(); }
|
||||
QChar peek() const { return atEnd() ? QChar() : m_text.at(m_pos); }
|
||||
void advance() { ++m_pos; }
|
||||
void fail(const QString& message, bool& ok) { ok = false; m_error = message; }
|
||||
|
||||
const QString& m_text;
|
||||
int m_pos = 0;
|
||||
QString m_error;
|
||||
};
|
||||
|
||||
} // namespace
|
||||
|
||||
ExpressionEvaluator::Result ExpressionEvaluator::evaluate(const QString& expression) {
|
||||
Parser parser(expression);
|
||||
return parser.parse();
|
||||
}
|
||||
@@ -0,0 +1,20 @@
|
||||
#pragma once
|
||||
|
||||
#include <QString>
|
||||
|
||||
// 对形如 "1+2*(3-4)" 的中缀表达式求值：
|
||||
// 乘除优先级高于加减，括号可提升优先级。
|
||||
class ExpressionEvaluator {
|
||||
public:
|
||||
struct Result {
|
||||
bool ok = false;
|
||||
double value = 0.0;
|
||||
QString errorMessage;
|
||||
};
|
||||
|
||||
// 结果显示精度（有效数字位数），要求不得小于 10。
|
||||
static constexpr int kResultPrecision = 12;
|
||||
static_assert(kResultPrecision >= 10, "结果显示精度不得小于 10 位有效数字");
|
||||
|
||||
static Result evaluate(const QString& expression);
|
||||
};
|
||||
@@ -0,0 +1,93 @@
|
||||
#include <QApplication>
|
||||
#include <QDebug>
|
||||
#include <QTimer>
|
||||
|
||||
#include "calculatordesigner.h"
|
||||
|
||||
// ------------------------------------------------------------ 自测入口 ----
|
||||
// 与 ../calculator/qt_calculator.cpp 完全相同的 5 组用例：验证「界面搭建方式
|
||||
// 换了，行为不变」。
|
||||
|
||||
static bool expectEqual(const char* label, const QString& actual, const QString& expected) {
|
||||
if (actual != expected) {
|
||||
qCritical() << "自测失败：" << label << "实际=" << actual << "预期=" << expected;
|
||||
return false;
|
||||
}
|
||||
qInfo() << "自测通过：" << label << "=>" << actual;
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool runSelfTest(CalculatorDesigner* calc) {
|
||||
calc->onClear();
|
||||
calc->onDigit(7); calc->onOperator(QLatin1Char('+')); calc->onDigit(3); calc->onEquals();
|
||||
if (!expectEqual("7 + 3 =", calc->displayText(), QStringLiteral("10"))) return false;
|
||||
|
||||
calc->onClear();
|
||||
calc->onDigit(6); calc->onOperator(QLatin1Char('/')); calc->onDigit(0); calc->onEquals();
|
||||
if (!expectEqual("6 ÷ 0 =", calc->displayText(), QStringLiteral("Error"))) return false;
|
||||
|
||||
calc->onClear();
|
||||
calc->onDigit(4); calc->onDot(); calc->onDigit(5);
|
||||
calc->onOperator(QLatin1Char('+'));
|
||||
calc->onDigit(0); calc->onDot(); calc->onDigit(5);
|
||||
calc->onEquals();
|
||||
if (!expectEqual("4.5 + 0.5 =", calc->displayText(), QStringLiteral("5"))) return false;
|
||||
|
||||
calc->onClear();
|
||||
calc->onDigit(1); calc->onDigit(2); calc->onBackspace();
|
||||
if (!expectEqual("12 退格", calc->displayText(), QStringLiteral("1"))) return false;
|
||||
|
||||
calc->onClear();
|
||||
calc->onDigit(2); calc->onOperator(QLatin1Char('+'));
|
||||
calc->onDigit(3); calc->onOperator(QLatin1Char('+'));
|
||||
calc->onDigit(4); calc->onEquals();
|
||||
if (!expectEqual("2 + 3 + 4 =（链式运算）", calc->displayText(), QStringLiteral("9"))) return false;
|
||||
|
||||
calc->onClear();
|
||||
calc->onDigit(2); calc->onOperator(QLatin1Char('+'));
|
||||
calc->onDigit(3); calc->onOperator(QLatin1Char('*'));
|
||||
calc->onDigit(4); calc->onEquals();
|
||||
if (!expectEqual("2 + 3 × 4 =（乘法优先于加法）", calc->displayText(), QStringLiteral("14"))) return false;
|
||||
|
||||
calc->onClear();
|
||||
calc->onLeftParen();
|
||||
calc->onDigit(2); calc->onOperator(QLatin1Char('+')); calc->onDigit(3);
|
||||
calc->onRightParen();
|
||||
calc->onOperator(QLatin1Char('*'));
|
||||
calc->onDigit(4); calc->onEquals();
|
||||
if (!expectEqual("(2 + 3) × 4 =（括号提升优先级）", calc->displayText(), QStringLiteral("20"))) return false;
|
||||
if (!expectEqual("(2 + 3) × 4 = 表达式区文本", calc->expressionText(), QStringLiteral("(2+3)*4 = 20"))) return false;
|
||||
|
||||
calc->onClear();
|
||||
calc->onDigit(1); calc->onOperator(QLatin1Char('+'));
|
||||
calc->onLeftParen();
|
||||
calc->onDigit(2); calc->onOperator(QLatin1Char('*'));
|
||||
calc->onLeftParen();
|
||||
calc->onDigit(3); calc->onOperator(QLatin1Char('+')); calc->onDigit(4);
|
||||
calc->onRightParen();
|
||||
calc->onRightParen();
|
||||
calc->onEquals();
|
||||
if (!expectEqual("1 + (2 × (3 + 4)) =（嵌套括号）", calc->displayText(), QStringLiteral("15"))) return false;
|
||||
|
||||
calc->onClear();
|
||||
calc->onLeftParen();
|
||||
calc->onDigit(1); calc->onOperator(QLatin1Char('+')); calc->onDigit(2);
|
||||
calc->onEquals(); // 未手动补齐右括号，应自动闭合后求值
|
||||
if (!expectEqual("(1 + 2 =（自动补全括号）", calc->displayText(), QStringLiteral("3"))) return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
int main(int argc, char* argv[]) {
|
||||
QApplication app(argc, argv);
|
||||
CalculatorDesigner calc;
|
||||
calc.show();
|
||||
|
||||
if (qgetenv("QT_QPA_PLATFORM") == "offscreen") {
|
||||
QTimer::singleShot(0, &calc, [&calc] {
|
||||
const bool ok = runSelfTest(&calc);
|
||||
QCoreApplication::exit(ok ? 0 : 1);
|
||||
});
|
||||
}
|
||||
return app.exec();
|
||||
}
|
||||
@@ -0,0 +1,200 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<ui version="4.0">
|
||||
<class>CalculatorForm</class>
|
||||
<widget class="QWidget" name="CalculatorForm">
|
||||
<property name="geometry">
|
||||
<rect>
|
||||
<x>0</x>
|
||||
<y>0</y>
|
||||
<width>358</width>
|
||||
<height>320</height>
|
||||
</rect>
|
||||
</property>
|
||||
<property name="windowTitle">
|
||||
<string>简易计算器（Designer 版）</string>
|
||||
</property>
|
||||
<layout class="QVBoxLayout" name="rootLayout">
|
||||
<item>
|
||||
<widget class="QTextEdit" name="expressionEdit">
|
||||
<property name="minimumSize">
|
||||
<size>
|
||||
<width>0</width>
|
||||
<height>50</height>
|
||||
</size>
|
||||
</property>
|
||||
<property name="maximumSize">
|
||||
<size>
|
||||
<width>16777215</width>
|
||||
<height>80</height>
|
||||
</size>
|
||||
</property>
|
||||
<property name="readOnly">
|
||||
<bool>true</bool>
|
||||
</property>
|
||||
<property name="alignment">
|
||||
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item>
|
||||
<widget class="QLineEdit" name="display">
|
||||
<property name="text">
|
||||
<string>0</string>
|
||||
</property>
|
||||
<property name="alignment">
|
||||
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
|
||||
</property>
|
||||
<property name="readOnly">
|
||||
<bool>true</bool>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item>
|
||||
<layout class="QGridLayout" name="keypadLayout">
|
||||
<item row="0" column="0">
|
||||
<widget class="QPushButton" name="btn7">
|
||||
<property name="text">
|
||||
<string>7</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="0" column="1">
|
||||
<widget class="QPushButton" name="btn8">
|
||||
<property name="text">
|
||||
<string>8</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="0" column="2">
|
||||
<widget class="QPushButton" name="btn9">
|
||||
<property name="text">
|
||||
<string>9</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="0" column="3">
|
||||
<widget class="QPushButton" name="btnDiv">
|
||||
<property name="text">
|
||||
<string>÷</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="1" column="0">
|
||||
<widget class="QPushButton" name="btn4">
|
||||
<property name="text">
|
||||
<string>4</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="1" column="1">
|
||||
<widget class="QPushButton" name="btn5">
|
||||
<property name="text">
|
||||
<string>5</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="1" column="2">
|
||||
<widget class="QPushButton" name="btn6">
|
||||
<property name="text">
|
||||
<string>6</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="1" column="3">
|
||||
<widget class="QPushButton" name="btnMul">
|
||||
<property name="text">
|
||||
<string>×</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="2" column="0">
|
||||
<widget class="QPushButton" name="btn1">
|
||||
<property name="text">
|
||||
<string>1</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="2" column="1">
|
||||
<widget class="QPushButton" name="btn2">
|
||||
<property name="text">
|
||||
<string>2</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="2" column="2">
|
||||
<widget class="QPushButton" name="btn3">
|
||||
<property name="text">
|
||||
<string>3</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="2" column="3">
|
||||
<widget class="QPushButton" name="btnMinus">
|
||||
<property name="text">
|
||||
<string>-</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="3" column="0">
|
||||
<widget class="QPushButton" name="btn0">
|
||||
<property name="text">
|
||||
<string>0</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="3" column="1">
|
||||
<widget class="QPushButton" name="btnDot">
|
||||
<property name="text">
|
||||
<string>.</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="3" column="2">
|
||||
<widget class="QPushButton" name="btnEquals">
|
||||
<property name="text">
|
||||
<string>=</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="3" column="3">
|
||||
<widget class="QPushButton" name="btnPlus">
|
||||
<property name="text">
|
||||
<string>+</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="4" column="0">
|
||||
<widget class="QPushButton" name="btnClear">
|
||||
<property name="text">
|
||||
<string>C</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="4" column="1">
|
||||
<widget class="QPushButton" name="btnBackspace">
|
||||
<property name="text">
|
||||
<string>⌫</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="4" column="2">
|
||||
<widget class="QPushButton" name="btnLeftParen">
|
||||
<property name="text">
|
||||
<string>(</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
<item row="4" column="3">
|
||||
<widget class="QPushButton" name="btnRightParen">
|
||||
<property name="text">
|
||||
<string>)</string>
|
||||
</property>
|
||||
</widget>
|
||||
</item>
|
||||
</layout>
|
||||
</item>
|
||||
</layout>
|
||||
</widget>
|
||||
<resources/>
|
||||
<connections/>
|
||||
</ui>
|
||||
Reference in New Issue
Block a user