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PublicFunctions/Basic.cpp

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+#include "Basic.h"
+/**
+ * @brief map 映射函数,把x的值,映射到out_min到out_max的范围内
+ * @param x 需要映射的值
+ * @param in_min    x有可能的最小值
+ * @param in_max    x有可能的最大值
+ * @param out_min   输出的最小值
+ * @param out_max   输出的最大值
+ * @return  映射结果
+ */
+M_d64 map(M_d64 x, M_d64 in_min, M_d64 in_max, M_d64 out_min, M_d64 out_max) {
+  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
+}
+void Sleep(M_u16 msec){
+    QTime _Timer = QTime::currentTime().addMSecs(msec);
+        while( QTime::currentTime() < _Timer )
+            QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
+}

PublicFunctions/Basic.h

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+#ifndef BASIC_H
+#define BASIC_H
+#include <GlobalDefinitions/DataType.h>
+#include <QCoreApplication>
+#include <QTime>
+
+
+double map(double x, double in_min, double in_max, double out_min, double out_max);
+void Sleep(uint16_t msec);
+
+#endif // BASIC_H

PublicFunctions/Components.cpp

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+#include "Components.h"
+
+Components::Components(QObject *parent) : QObject(parent)
+{
+
+}

PublicFunctions/Components.h

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+#ifndef COMPONENTS_H
+#define COMPONENTS_H
+
+#include <QObject>
+
+class Components : public QObject
+{
+    Q_OBJECT
+public:
+    explicit Components(QObject *parent = nullptr);
+
+signals:
+
+};
+
+#endif // COMPONENTS_H

PublicFunctions/CursorController.cpp

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+#include "CursorController.h"
+#include <QWidget>
+#include <QCursor>
+#include <QApplication>
+#include <QScreen>
+#include <QMouseEvent>
+#include <QDebug>
+
+CursorController::CursorController(QObject *parent)
+    : QObject(parent)
+{
+    // 判断能否真正移动系统光标
+    m_useRealCursor = QGuiApplication::platformName() != "eglfs"
+                   && QGuiApplication::platformName() != "linuxfb"
+                   && QGuiApplication::platformName() != "minimal";
+
+    if (!m_useRealCursor)
+        m_pos = QGuiApplication::primaryScreen()->geometry().center();
+    else
+        m_pos = QCursor::pos();
+}
+
+void CursorController::handleKey(int key)
+{
+    QPoint delta;
+    switch (key) {
+    case Qt::Key_Up:    delta = QPoint(0, -cfg.step); break;
+    case Qt::Key_Down:  delta = QPoint(0,  cfg.step); break;
+    case Qt::Key_Left:  delta = QPoint(-cfg.step, 0); break;
+    case Qt::Key_Right: delta = QPoint( cfg.step, 0); break;
+    case Qt::Key_Return:
+    case Qt::Key_Space:
+        if (cfg.emulate) emulateClick();
+        return;
+    default: return;
+    }
+    move(delta);
+}
+
+void CursorController::move(const QPoint &delta)
+{
+    QRect desk = QGuiApplication::primaryScreen()->geometry();
+    m_pos += delta;
+
+    if (cfg.wrap) {
+        m_pos.setX(((m_pos.x() - desk.left()) % desk.width()  + desk.width())  % desk.width()  + desk.left());
+        m_pos.setY(((m_pos.y() - desk.top())  % desk.height() + desk.height()) % desk.height() + desk.top());
+    } else {
+        m_pos.setX(qBound(desk.left()   + cfg.edgeGap, m_pos.x(), desk.right()  - cfg.edgeGap));
+        m_pos.setY(qBound(desk.top()    + cfg.edgeGap, m_pos.y(), desk.bottom() - cfg.edgeGap));
+    }
+
+    if (m_useRealCursor)
+        QCursor::setPos(m_pos);
+
+    emit cursorMoved(m_pos);
+}
+
+void CursorController::emulateClick()
+{
+    QWidget *w = QApplication::widgetAt(m_pos);
+    if (w) {
+        QPoint local = w->mapFromGlobal(m_pos);
+        QMouseEvent press (QEvent::MouseButtonPress,   local, Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);
+        QMouseEvent release(QEvent::MouseButtonRelease, local, Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);
+        QApplication::sendEvent(w, &press);
+        QApplication::sendEvent(w, &release);
+    }
+    emit clicked(w);
+}

PublicFunctions/CursorController.h

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+#ifndef CURSORCONTROLLER_H
+#define CURSORCONTROLLER_H
+
+#include <QObject>
+#include <QPoint>
+#include <QKeyEvent>
+
+class CursorController : public QObject
+{
+    Q_OBJECT
+public:
+    explicit CursorController(QObject *parent = nullptr);
+
+    // 可调参数
+    struct Config {
+        int  step      = 20;   // 每步像素
+        bool wrap      = false;// 边缘回绕
+        bool emulate   = true; // 是否发送点击事件
+        int  edgeGap   = 5;    // 离边缘空隙
+    };
+
+    Config cfg;  // 直接改成员即可实时生效
+
+public slots:
+    void handleKey(int key);   // 接受 Qt::Key_xxx
+
+signals:
+    void cursorMoved(const QPoint &globalPos);
+    void clicked(QWidget *target);
+
+private:
+    QPoint m_pos;
+    bool   m_useRealCursor;   // true: 系统光标  false: 自绘光标
+    void   move(const QPoint &delta);
+    void   emulateClick();
+};
+
+#endif // CURSORCONTROLLER_H