add callback imaging

CMakeSettings.json

@@ -0,0 +1,27 @@
+{
+  "configurations": [
+    {
+      "name": "x64-Debug",
+      "generator": "Ninja",
+      "configurationType": "Debug",
+      "inheritEnvironments": [ "msvc_x64_x64" ],
+      "buildRoot": "${projectDir}\\out\\build\\${name}",
+      "installRoot": "${projectDir}\\out\\install\\${name}",
+      "cmakeCommandArgs": "",
+      "buildCommandArgs": "",
+      "ctestCommandArgs": ""
+    },
+    {
+      "name": "x64-Release",
+      "generator": "Ninja",
+      "configurationType": "Release",
+      "buildRoot": "${projectDir}\\out\\build\\${name}",
+      "installRoot": "${projectDir}\\out\\install\\${name}",
+      "cmakeCommandArgs": "",
+      "buildCommandArgs": "",
+      "ctestCommandArgs": "",
+      "inheritEnvironments": [ "msvc_x64_x64" ],
+      "variables": []
+    }
+  ]
+}

LLM.md

@@ -1,88 +1,30 @@
-请帮助我生成一个C++编写的Qt UI代码，使用`initUI()`函数实现UI的创建，具体要求如下：
+请结合手册提供的回调函数注册代码，使用 lambda 函数的方式，实现类 `` 中的注册回调函数功能
-这个类的签名为`class HikWidget`继承自QWidget
-整个UI分为左右两部分，水平分布比例为3:1，开始时设置窗口大小为1280x720
-左侧为一个QGraphicsView控件，为类成员变量`QGraphicsView *m_gv`，后面如无特殊说明类内成员变量都应当以`m_`开头
-右侧为三个groupbox，这三个groupbox垂直分布，这里可以使用局部变量，从上到下分别显示文字为“相机操作”、“图像保存”、“相机参数”
-“相机操作”groupbox中为一个2x2表格布局，里面有四个pushButton控件，从左到右从上倒下分别显示“打开相机”、“关闭相机”、“开始取流”、“结束取流”
-这几个pushButton声明为成员变量，并根据控件属性和提示文字含义帮我取变量名，例如“打开相机”对应`QPushBotton *m_btn_opencamera`
-“图像保存”groupbox中为一个水平布局，包括一个只读的lineEditor、一个comboBox、两个pushBotton，这四个控件都应该是成员变量
-lineEditor中显示保存文件路径，comboBox选择保存图像格式，至少有`.jpg`, `.png`, `.tif`, `.bmp`几个选项
-两个pushButton显示文字为“打开...”和“保存”，一个负责选择保存路径，一个实际执行保存行为（initUI时不考虑信号与槽）
-最后“相机参数”groupbox中为一个2x2的表格布局，每一行都是一个label和一个doubelSpinBox，其中两个spin应当为成员变量
-第一行的label显示文字“曝光时间：”，对应第一行的spin设置的是曝光时间
-第二行的label显示文字“增益设置：”，对应第二行的spin设置的是增益
-
----
-
-我希望将图像保存GroupBox修改一下设计，将这个GroupBox修改为2x3表格布局
-第一行3列合并显示m_edit_savePath，第二行分别显示m_cmb_imgFormat、m_btn_openDir、m_btn_saveImage
 
 ```cpp
-// 图像保存GroupBox
+/* 相机 SDK 示例代码 */
-QGroupBox *saveGroup = new QGroupBox("图像保存", rightPanel);
+void __stdcall ImageCallBackEx(unsigned char * pData, MV_FRAME_OUT_INFO_EX* pFrameInfo, void* pUser)
-QHBoxLayout *saveLayout = new QHBoxLayout(saveGroup);
+{
-
+    if (pFrameInfo)
-m_edit_savePath = new QLineEdit(saveGroup);
+    {
-m_edit_savePath->setReadOnly(true);
+        printf("Get One Frame: Width[%d], Height[%d], FrameLen[%I64d] nFrameNum[%d]\n", 
-m_edit_savePath->setPlaceholderText("保存路径...");
+        pFrameInfo->nExtendWidth, pFrameInfo->nExtendHeight, pFrameInfo->nFrameLenEx,pFrameInfo->nFrameNum);
-m_edit_savePath->setClearButtonEnabled(true);
+        // pData 是图像指针，pFrameInfo->nFrameLenEx 是图像长度, 可以进行图像处理
-
-m_cmb_imgFormat = new QComboBox(saveGroup);
-QStringList formats = { ".jpg", ".png", ".tif", ".bmp" };
-m_cmb_imgFormat->addItems(formats);
-
-m_btn_openDir = new QPushButton("打开...", saveGroup);
-m_btn_openDir->setFixedWidth(80);
-
-m_btn_saveImage = new QPushButton("保存", saveGroup);
-m_btn_saveImage->setFixedWidth(80);
-
-saveLayout->addWidget(m_edit_savePath);
-saveLayout->addWidget(m_cmb_imgFormat);
-saveLayout->addWidget(m_btn_openDir);
-saveLayout->addWidget(m_btn_saveImage);
-saveGroup->setLayout(saveLayout);
-```
-
----
-
-请使用单例模式帮助我设计一个海康相机的类，类签名为`class HikCamera`
-根据手册，类成员应当有一个句柄指针`void *handler`
-并参考一下我对FLIR相机的时间仿照着设计海康相机类，先仅需要生成头文件`HikCamera.hpp`相关代码即可
-
-```cpp
-// FLIRCamera.hpp
-// 初始化/去初始化相机
-void init();
-void deinit();
-
-// 开始/停止图像采集
-void startGrabing();
-void stopGrabing();
-
-// 设置参数
-void setExposure(double exposure);
-void setGain(double gain);
-
-// 注册图像回调
-void registerImageCallback();
-
-// 线程安全的单例示意代码
-class YourSingleton {
-public:
-    static YourSingleton& getInstance() {
-        static YourSingleton instance;
-        return instance;
     }
+}
 
-    // 禁用拷贝和移动
+// 注册抓图回调
-    YourSingleton(const YourSingleton&) = delete;
+nRet = MV_CC_RegisterImageCallBackEx(handle, ImageCallBackEx, handle);
-    YourSingleton(YourSingleton&&) = delete;
+Check(nRet);
-    YourSingleton& operator=(const YourSingleton&) = delete;
-    YourSingleton& operator=(YourSingleton&&) = delete;
 
-private:
+// 设置缓存节点个数
-    YourSingleton() = default; // 或提供参数化构造
+nRet = MV_CC_SetImageNodeNum(handle, 5);
-    ~YourSingleton() = default; // 或自定义析构
+Check(nRet);
-};
+
+// 开始取流
+nRet = MV_CC_StartGrabbing(handle);
+Check(nRet);
+
+/* 类中代码 */
+// 注册图像回调函数
+void registerImageCallback();
 ```

include/HikCamera.hpp

@@ -1,6 +1,11 @@
 #pragma once
 
-class HikCamera {
+#include <CameraParams.h>
+#include <MvCameraControl.h>
+#include <MvErrorDefine.h>
+#include <PixelType.h>
+
+class HikCamera{
 public:
     // 获取单例实例
     static HikCamera &getInstance() {

include/HikWidget.hpp

@@ -9,8 +9,11 @@ public:
 
 private:
     void initUI();
+    void connectAllSignalsAndSlots();
 
     // 左侧视图
+    QGraphicsScene *m_scene;
+    QGraphicsPixmapItem *m_pixmapItem;
     QGraphicsView *m_gv;
 
     // 相机操作按钮

src/HikCamera.cpp

@@ -1,10 +1,16 @@
 #include "HikCamera.hpp"
 
 #include <memory>
-#include <CameraParams.h>
+#include <iostream>
-#include <MvCameraControl.h>
+
-#include <MvErrorDefine.h>
+// 静态成员函数作为SDK回调函数
-#include <PixelType.h>
+static void __stdcall ImageCallback(unsigned char *pData, MV_FRAME_OUT_INFO_EX *pFrameInfo, void *pUser) {
+    // 将用户数据转换为HikCamera实例
+    /*HikCamera *instance = static_cast<HikCamera *>(pUser);
+    if (instance) {
+        instance->handleFrameData(pData, pFrameInfo);
+    }*/
+}
 
 void HikCamera::init() {
     // 初始化 SDK
@@ -24,17 +30,32 @@ void HikCamera::init() {
 }
 
 void HikCamera::deinit() {
+    // 关闭相机
+    int nRet = MV_OK;
+    nRet = MV_CC_CloseDevice(m_handler);
+
+    // 销毁相机实例
+    nRet = MV_CC_DestroyHandle(m_handler);
 
     // 去初始化 SDK
     MV_CC_Finalize();
 }
 
-void HikCamera::startGrabbing() {}
+void HikCamera::startGrabbing() {
+    int nRet = MV_OK;
+    nRet = MV_CC_StartGrabbing(m_handler);
+}
 
-void HikCamera::stopGrabbing() {}
+void HikCamera::stopGrabbing() {
+    int nRet = MV_OK;
+    nRet = MV_CC_StopGrabbing(m_handler);
+}
 
 void HikCamera::setExposure(double exposure) {}
 
 void HikCamera::setGain(double gain) {}
 
-void HikCamera::registerImageCallback() {}
+void HikCamera::registerImageCallback() {
+    int nRet = MV_OK;
+    nRet = MV_CC_RegisterImageCallBackEx(m_handler, ImageCallback, nullptr);
+}

src/HikWidget.cpp

@@ -1,9 +1,13 @@
 #include "HikWidget.hpp"
+#include "HikCamera.hpp"
+
+#include <QDebug>
 
 HikWidget::HikWidget(QWidget *parent) : QWidget(parent) {
     setWindowTitle("HikVision Camera Control");
     resize(1280, 720); // 设置初始窗口大小
     initUI();
+    connectAllSignalsAndSlots();
 }
 
 void HikWidget::initUI() {
@@ -13,7 +17,10 @@ void HikWidget::initUI() {
     mainLayout->setSpacing(15);
 
     // 左侧 - QGraphicsView
-    m_gv = new QGraphicsView(this);
+    m_pixmapItem = new QGraphicsPixmapItem();
+    m_scene = new QGraphicsScene(this);
+    m_scene->addItem(m_pixmapItem);
+    m_gv = new QGraphicsView(m_scene, this);
     m_gv->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
     m_gv->setRenderHint(QPainter::Antialiasing);
     m_gv->setBackgroundBrush(Qt::darkGray);
@@ -104,6 +111,89 @@ void HikWidget::initUI() {
     mainLayout->addWidget(rightPanel, 1); // 3:1比例中的1份
 
     // 设置按钮初始状态
+    m_btn_openCamera->setEnabled(true);
     m_btn_closeCamera->setEnabled(false);
+    m_btn_startGrabbing->setEnabled(false);
     m_btn_stopGrabbing->setEnabled(false);
 }
+
+void HikWidget::connectAllSignalsAndSlots() {
+    // 相机操作按钮连接
+    connect(m_btn_openCamera, &QPushButton::clicked, this, [this]() {
+        HikCamera::getInstance().init();
+        HikCamera::getInstance().registerImageCallback();
+        m_btn_openCamera->setEnabled(false);
+        m_btn_closeCamera->setEnabled(true);
+        m_btn_startGrabbing->setEnabled(true);
+        m_btn_stopGrabbing->setEnabled(false);
+        });
+
+    connect(m_btn_closeCamera, &QPushButton::clicked, this, [this]() {
+        HikCamera::getInstance().deinit();
+        m_btn_openCamera->setEnabled(true);
+        m_btn_closeCamera->setEnabled(false);
+        m_btn_startGrabbing->setEnabled(false);
+        m_btn_stopGrabbing->setEnabled(false);
+        });
+
+    connect(m_btn_startGrabbing, &QPushButton::clicked, this, [this]() {
+        HikCamera::getInstance().startGrabbing();
+        m_btn_startGrabbing->setEnabled(false);
+        m_btn_stopGrabbing->setEnabled(true);
+        });
+
+    connect(m_btn_stopGrabbing, &QPushButton::clicked, this, [this]() {
+        HikCamera::getInstance().stopGrabbing();
+        m_btn_stopGrabbing->setEnabled(false);
+        m_btn_startGrabbing->setEnabled(true);
+        });
+
+    // 图像保存按钮连接
+    connect(m_btn_openDir, &QPushButton::clicked, this, [this]() {
+        QString dir = QFileDialog::getExistingDirectory(
+            this, "选择保存目录", QDir::homePath(),
+            QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
+
+        if (!dir.isEmpty()) {
+            m_edit_savePath->setText(QDir::toNativeSeparators(dir));
+        }
+        });
+
+    connect(m_btn_saveImage, &QPushButton::clicked, this, [this]() {
+        QString path = m_edit_savePath->text();
+        if (path.isEmpty()) {
+            QMessageBox::warning(this, "警告", "请先选择保存路径");
+            return;
+        }
+
+        QDir dir(path);
+        if (!dir.exists()) {
+            if (!dir.mkpath(".")) {
+                QMessageBox::critical(this, "错误", "无法创建保存目录");
+                return;
+            }
+        }
+
+        // 生成时间戳文件名 yyyy-MM-dd-HH-mm-ss-zzz
+        QDateTime now = QDateTime::currentDateTime();
+        QString timestamp = now.toString("yyyy-MM-dd-HH-mm-ss-zzz");
+        QString format = m_cmb_imgFormat->currentText();
+
+        QString filePath = QDir::toNativeSeparators(
+            dir.filePath(timestamp + format));
+
+        qDebug() << "图片保存路径：" << filePath;
+        });
+
+    // 相机参数连接
+    connect(m_spin_exposureTime, QOverload<double>::of(&QDoubleSpinBox::valueChanged),
+        [](double value) {
+            HikCamera::getInstance().setExposure(value);
+        });
+
+    connect(m_spin_gain, QOverload<double>::of(&QDoubleSpinBox::valueChanged),
+        [](double value) {
+            HikCamera::getInstance().setGain(value);
+        });
+
+}