[重构PasswordLineEdit控件并完善示例程序]: 全面升级密码输入框控件功能，增强用户体验和代码可维护性，提供完整的演示界面

- **控件功能增强**: 重构PasswordLineEdit类，新增CapsLock状态检测警告、自定义图标支持、工具提示时长设置等高级功能，提升密码输入安全性
- **演示程序完善**: 完全重写mainwindow.cc，创建功能丰富的演示界面，包含多个密码输入场景、批量操作控制和实时状态反馈
- **代码结构优化**: 采用现代C++编程规范，移除资源文件依赖，使用系统图标替代自定义图片，简化项目配置和构建流程
- **项目配置清理**: 更新CMakeLists.txt和.pro文件，移除不必要的资源引用，统一目标命名规范，优化构建系统配置
- **文档更新同步**: 更新README.md中PasswordLineEdit章节，详细描述新功能特性，替换为新的界面截图，保持文档与代码同步

Author: RealChuan

README.md

@@ -171,12 +171,13 @@ void ThreadedTcpServer::incomingConnection(qintptr socketDescriptor)
 - 自适应布局，响应窗口尺寸变化
 - <img src="src/NavigationProgressBar/images/navigation_progress.png" width="800" alt="导航进度条截图">
 
-### [PasswordLineEdit](src/PasswordLineEdit/) - 密码输入字段
+## [PasswordLineEdit](src/PasswordLineEdit/) - 密码输入框控件
 
-- 安全密码输入
-- 切换可见性
-- <img src="src/PasswordLineEdit/picture/HiddenPassword.png" width="200" alt="隐藏密码">
-  <img src="src/PasswordLineEdit/picture/ShowPassword.png" width="200" alt="显示密码">
+- 支持显示/隐藏密码切换功能
+- 自动检测CapsLock状态并显示警告提示
+- 可自定义图标、提示时长和警告功能
+- 提供密码验证和批量操作支持
+- <img src="src/PasswordLineEdit/images/password_line_edit.png" width="600" alt="密码输入框截图">
 
 ### [ProgressArc](src/ProgressArc/) - 圆形进度指示器
 

src/NavigationProgressBar/CMakeLists.txt

@@ -1,5 +1,5 @@
 set(PROJECT_SOURCES main.cpp mainwindow.cpp mainwindow.h
                     navigationprogressbar.h navigationprogressbar.cpp)
 
-qt_add_executable(NavigationProgressBar ${PROJECT_SOURCES})
-target_link_libraries(NavigationProgressBar PRIVATE Qt::Widgets)
+qt_add_executable(navigation_progress ${PROJECT_SOURCES})
+target_link_libraries(navigation_progress PRIVATE Qt::Widgets)

src/PasswordLineEdit/CMakeLists.txt

@@ -1,7 +1,5 @@
 set(PROJECT_SOURCES main.cc mainwindow.cc mainwindow.hpp passwordlineedit.cc
                     passwordlineedit.hpp)
 
-qt_add_resources(PROJECT_SOURCES resources.qrc)
-
 qt_add_executable(PasswordLineEdit ${PROJECT_SOURCES})
 target_link_libraries(PasswordLineEdit PRIVATE Qt::Widgets)

src/PasswordLineEdit/PasswordLineEdit.pro

@@ -13,10 +13,6 @@ HEADERS += \
     mainwindow.hpp \
     passwordlineedit.hpp
 
-
-RESOURCES += \
-    resources.qrc
-
 win32: LIBS += -luser32
 
 DESTDIR = $$RUNTIME_OUTPUT_DIRECTORY

src/PasswordLineEdit/images/password_line_edit.png

@@ -6,13 +6,184 @@
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
 {
-    auto widget = new QWidget(this);
-    auto passwordLineEdit = new PasswordLineEdit(this);
-    passwordLineEdit->setMinimumHeight(50);
-    auto layout = new QHBoxLayout(widget);
-    layout->addWidget(passwordLineEdit);
-    setCentralWidget(widget);
-    setMinimumSize(300, 130);
+    // 创建主窗口部件
+    auto *centralWidget = new QWidget(this);
+    setCentralWidget(centralWidget);
+
+    // 创建主布局
+    auto *mainLayout = new QVBoxLayout(centralWidget);
+
+    // 创建多个密码输入框演示不同功能
+    auto createPasswordField = [this](const QString &labelText,
+                                      const QString &placeholder = "") -> auto * {
+        auto *group = new QGroupBox(labelText, this);
+        auto *layout = new QVBoxLayout(group);
+
+        auto *passwordEdit = new PasswordLineEdit(this);
+        if (!placeholder.isEmpty()) {
+            passwordEdit->setPlaceholderText(placeholder);
+        }
+
+        layout->addWidget(passwordEdit);
+        return group;
+    };
+
+    // 基本密码输入框
+    mainLayout->addWidget(createPasswordField("Basic Password Field", "Enter your password here"));
+
+    // 带自定义提示的密码框
+    auto *customPlaceholderGroup = new QGroupBox("Password Field with Custom Placeholder", this);
+    auto *customLayout = new QVBoxLayout(customPlaceholderGroup);
+    auto *customPasswordEdit = new PasswordLineEdit(this);
+    customPasswordEdit->setPlaceholderText("Minimum 8 characters with special symbols");
+    customLayout->addWidget(customPasswordEdit);
+    mainLayout->addWidget(customPlaceholderGroup);
+
+    // 禁用CapsLock警告的密码框
+    auto *noCapsLockGroup = new QGroupBox("Password Field without CapsLock Warning", this);
+    auto *noCapsLayout = new QVBoxLayout(noCapsLockGroup);
+    auto *noCapsPasswordEdit = new PasswordLineEdit(this);
+    noCapsPasswordEdit->setCapsLockWarningEnabled(false);
+    noCapsPasswordEdit->setPlaceholderText("CapsLock warning disabled for this field");
+    noCapsLayout->addWidget(noCapsPasswordEdit);
+    mainLayout->addWidget(noCapsLockGroup);
+
+    // 控制面板
+    auto *controlGroup = new QGroupBox("Controls", this);
+    auto *controlLayout = new QGridLayout(controlGroup);
+
+    // CapsLock警告开关
+    auto *capsLockCheckbox = new QCheckBox("Enable CapsLock Warning", this);
+    capsLockCheckbox->setChecked(true);
+    controlLayout->addWidget(capsLockCheckbox, 0, 0);
+
+    // 显示所有密码按钮
+    auto *showAllButton = new QPushButton("Show All Passwords", this);
+    controlLayout->addWidget(showAllButton, 0, 1);
+
+    // 隐藏所有密码按钮
+    auto *hideAllButton = new QPushButton("Hide All Passwords", this);
+    controlLayout->addWidget(hideAllButton, 0, 2);
+
+    // 清除所有密码按钮
+    auto *clearAllButton = new QPushButton("Clear All Passwords", this);
+    controlLayout->addWidget(clearAllButton, 1, 0);
+
+    // 验证按钮
+    auto *validateButton = new QPushButton("Validate Passwords", this);
+    controlLayout->addWidget(validateButton, 1, 1);
+
+    // 工具提示时长设置
+    auto *tooltipDurationSlider = new QSlider(Qt::Horizontal, this);
+    tooltipDurationSlider->setRange(1000, 10000);
+    tooltipDurationSlider->setValue(3000);
+    auto *durationLabel = new QLabel("Tooltip Duration: 3000ms", this);
+    controlLayout->addWidget(new QLabel("Tooltip Duration:", this), 2, 0);
+    controlLayout->addWidget(tooltipDurationSlider, 2, 1);
+    controlLayout->addWidget(durationLabel, 2, 2);
+
+    mainLayout->addWidget(controlGroup);
+
+    // 状态显示
+    auto *statusGroup = new QGroupBox("Status", this);
+    auto *statusLayout = new QVBoxLayout(statusGroup);
+    auto *statusLabel = new QLabel("Ready", this);
+    statusLabel->setAlignment(Qt::AlignCenter);
+    statusLayout->addWidget(statusLabel);
+    mainLayout->addWidget(statusGroup);
+
+    // 收集所有密码输入框
+    QList<PasswordLineEdit *> passwordEdits;
+    passwordEdits << customPasswordEdit << noCapsPasswordEdit;
+
+    // 动态查找所有PasswordLineEdit实例
+    auto findAllPasswordEdits = [this]() {
+        QList<PasswordLineEdit *> edits;
+        for (auto *child : findChildren<PasswordLineEdit *>()) {
+            edits.append(child);
+        }
+        return edits;
+    };
+
+    // 信号连接
+
+    // CapsLock警告开关
+    connect(capsLockCheckbox, &QCheckBox::toggled, this, [findAllPasswordEdits](bool enabled) {
+        for (auto *edit : findAllPasswordEdits()) {
+            edit->setCapsLockWarningEnabled(enabled);
+        }
+    });
+
+    // 显示所有密码
+    connect(showAllButton, &QPushButton::clicked, this, [findAllPasswordEdits]() {
+        for (auto *edit : findAllPasswordEdits()) {
+            edit->setEchoMode(QLineEdit::Normal);
+            // 由于原代码没有提供直接设置显示状态的方法，我们通过模拟按钮点击来实现
+            // 在实际使用中，如果PasswordLineEdit提供了togglePasswordVisibility()方法，应该使用它
+        }
+    });
+
+    // 隐藏所有密码
+    connect(hideAllButton, &QPushButton::clicked, this, [findAllPasswordEdits]() {
+        for (auto *edit : findAllPasswordEdits()) {
+            edit->setEchoMode(QLineEdit::Password);
+        }
+    });
+
+    // 清除所有密码
+    connect(clearAllButton, &QPushButton::clicked, this, [findAllPasswordEdits]() {
+        for (auto *edit : findAllPasswordEdits()) {
+            edit->clear();
+        }
+    });
+
+    // 验证密码
+    connect(validateButton, &QPushButton::clicked, this, [findAllPasswordEdits, statusLabel]() {
+        bool allValid = true;
+        QStringList messages;
+
+        for (auto *edit : findAllPasswordEdits()) {
+            if (!edit->text().isEmpty()) {
+                if (edit->text().length() < 6) {
+                    messages.append(QString("'%1' is too short (min 6 characters)")
+                                        .arg(edit->placeholderText().left(20)));
+                    allValid = false;
+                }
+            }
+        }
+
+        if (allValid && messages.isEmpty()) {
+            statusLabel->setText("✓ All passwords are valid");
+        } else if (messages.isEmpty()) {
+            statusLabel->setText("ℹ No passwords to validate");
+        } else {
+            statusLabel->setText("✗ " + messages.join("; "));
+        }
+    });
+
+    // 工具提示时长设置
+    connect(tooltipDurationSlider,
+            &QSlider::valueChanged,
+            this,
+            [durationLabel, findAllPasswordEdits](int value) {
+                durationLabel->setText(QString("Tooltip Duration: %1ms").arg(value));
+                for (auto *edit : findAllPasswordEdits()) {
+                    edit->setToolTipDuration(value);
+                }
+            });
+
+    // 密码输入框文本变化连接
+    auto updateStatusOnTextChange = [statusLabel]() {
+        statusLabel->setText("Password field updated");
+    };
+
+    for (auto *edit : findAllPasswordEdits()) {
+        connect(edit, &QLineEdit::textChanged, this, updateStatusOnTextChange);
+    }
+
+    // 窗口设置
+    setWindowTitle("PasswordLineEdit Demonstration");
+    resize(600, 450);
 }
 
 MainWindow::~MainWindow() {}

src/PasswordLineEdit/mainwindow.cc

@@ -1,20 +1,11 @@
-#ifndef MAINWINDOW_HPP
-#define MAINWINDOW_HPP
+#pragma once
 
-#include <QtCore/qglobal.h>
-#if QT_VERSION >= 0x050000
-#include <QtWidgets/QMainWindow>
-#else
-#include <QtGui/QMainWindow>
-#endif
+#include <QMainWindow>
 
 class MainWindow : public QMainWindow
 {
     Q_OBJECT
-
 public:
     explicit MainWindow(QWidget *parent = nullptr);
     ~MainWindow() override;
 };
-
-#endif // MAINWINDOW_HPP