SFUMECJF · jedi007 · Feb 18, 2022
diff --git a/实践案例/qt+opencv+libtorch/CMakeLists.txt b/实践案例/qt+opencv+libtorch/CMakeLists.txt
@@ -0,0 +1,107 @@
+# Set the minimum version of CMake that can be used
+# 设置CMake最小版本
+# To find the cmake version run
+# $ cmake --version
+cmake_minimum_required(VERSION 3.19.1)
+
+# Set the project name
+# 设置工程名
+project(qui)
+
+
+# 如果设置了环境变量可以省略以下步奏,若没有设置则参照如下路径设置自己的
+set(Qt5_DIR "D:/Qt/Qt5.13.2/5.13.2/msvc2017_64/lib/cmake/Qt5")
+set(OpenCV_DIR "D:/opencv452/build")
+set(Torch_DIR "D:/LibTorch_1.8.2.R/share/cmake/Torch")
+# In ubuntu
+# set(Qt5_DIR "/home/jedi/Qt5.14.2/5.14.2/gcc_64/lib/cmake/Qt5")
+# set(Torch_DIR "/home/jedi/libtorch/share/cmake/Torch")
+
+
+#注意，在一个大工程里，这几个开关一定要尽量放在前面打开，否则有可能会报无法生成ui文件的错误
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+#FIND_PACKAGE(Qt5 COMPONENTS Core Gui Qml Quick Widgets REQUIRED)
+FIND_PACKAGE(Qt5 COMPONENTS Core Widgets REQUIRED)
+
+
+# 2 find open cv
+#FIND_PACKAGE( OpenCV REQUIRED )
+find_package(OpenCV CONFIG REQUIRED PATHS)
+MESSAGE("OpenCV version : ${OpenCV_VERSION}")
+include_directories(${OpenCV_INCLUDE_DIRS})
+link_directories(${OpenCV_LIB_DIR})
+MESSAGE("OpenCV_LIB_DIR : ${OpenCV_LIB_DIR}")
+MESSAGE("OpenCV_LIBS : ${OpenCV_LIBS}")
+
+# 3 find libtorch
+find_package(Torch REQUIRED)
+
+
+
+SET(qui_SOURCES 
+	src/main.cpp 
+	src/mainwindow.cpp 
+)
+
+SET(qui_HEADERS 
+	src/mainwindow.h
+)
+
+SET(qui_FORMS 
+	src/mainwindow.ui
+)
+
+#SET(qui_RESOURCES 
+#	img.qrc
+#)
+
+#调用预编译器moc，需要使用 QT5_WRAP_CPP宏
+QT5_WRAP_CPP(qui_HEADERS_MOC ${qui_HEADERS})
+
+#使用uic处理.ui文件
+QT5_WRAP_UI(qui_FORMS_HEADERS ${qui_FORMS})
+
+#使用rcc处理.qrc文件
+#QT5_ADD_RESOURCES(qui_RESOURCES_RCC ${qui_RESOURCES})
+
+#这些生成的中间文件都会在build目录下，这样的话，编译器则不能定位由uic程序产生的诸如_ui_mainwindow.h等文件。所以，我们需要把build目录添加到包含目录中
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})
+
+#生成可执行文件
+ADD_EXECUTABLE(${PROJECT_NAME} 
+	${qui_SOURCES} 
+	${qui_HEADERS_MOC} 
+    ${qui_FORMS_HEADERS}
+	#${qui_RESOURCES_RCC} 
+)
+
+#为target添加需要链接的共享库
+#TARGET_LINK_LIBRARIES(${PROJECT_NAME} Qt5::Core Qt5::Gui Qt5::Qml Qt5::Quick ${Qt5Widgets_LIBRARIES})
+TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${Qt5Widgets_LIBRARIES})
+INSTALL(TARGETS ${PROJECT_NAME}
+    RUNTIME DESTINATION lib
+    LIBRARY DESTINATION lib
+    ARCHIVE DESTINATION lib
+)
+
+# Link your application with OpenCV libraries
+target_link_directories(${PROJECT_NAME} PUBLIC
+    ${OpenCV_LIB_DIRS}
+    )
+target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBS})
+target_include_directories(${PROJECT_NAME} PUBLIC
+    ${OpenCV_INCLUDE_DIRS}
+    )
+MESSAGE("OpenCV_INCLUDE_DIRS : ${OpenCV_INCLUDE_DIRS}")
+
+
+# Link your application with LibTorch libraries
+target_link_libraries(${PROJECT_NAME} "${TORCH_LIBRARIES}")
+set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 14)
diff --git a/实践案例/qt+opencv+libtorch/src/main.cpp b/实践案例/qt+opencv+libtorch/src/main.cpp
@@ -0,0 +1,39 @@
+#include <iostream>
+#include "mainwindow.h"
+#include <QApplication>
+#include <QWidget>
+#include <QDebug>
+#include <thread>
+#include <QTime>
+#include <opencv2/highgui.hpp>
+#include <opencv2/imgproc.hpp>
+#include <opencv2/opencv.hpp>
+
+
+#undef slots
+#include<torch/script.h>
+#include<torch/torch.h>
+#include<torch/csrc/api/include/torch/utils.h>
+#define slots Q_SLOTS
+
+
+using namespace std;
+using namespace cv;
+
+int main(int argc, char *argv[])
+{
+	cout << "Hello Qt-CMake!" << endl;
+
+	QApplication a(argc, argv);
+
+	MainWindow mainWin;
+	mainWin.show();
+
+	Mat image(Size(100, 100), CV_8UC1);
+	imshow("black",image);
+
+	torch::Tensor tensor = torch::rand({3,3});
+	cout << tensor << endl;
+
+	return a.exec();
+}
diff --git a/实践案例/qt+opencv+libtorch/src/mainwindow.cpp b/实践案例/qt+opencv+libtorch/src/mainwindow.cpp
@@ -0,0 +1,19 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::on_pushButton_pressed()
+{
+    ui->label_2->setText(ui->lineEdit->text());
+}
diff --git a/实践案例/qt+opencv+libtorch/src/mainwindow.h b/实践案例/qt+opencv+libtorch/src/mainwindow.h
@@ -0,0 +1,25 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = nullptr);
+    ~MainWindow();
+
+private slots:
+    void on_pushButton_pressed();
+
+private:
+    Ui::MainWindow *ui;
+};
+
+#endif // MAINWINDOW_H
diff --git a/实践案例/qt+opencv+libtorch/src/mainwindow.ui b/实践案例/qt+opencv+libtorch/src/mainwindow.ui
@@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>299</width>
+    <height>366</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>CMake-Qt-GUI</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer_2">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <widget class="QLineEdit" name="lineEdit"/>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout_2">
+      <item>
+       <spacer name="horizontalSpacer_3">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QLabel" name="label_2">
+        <property name="text">
+         <string>显示</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer_4">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <widget class="QPushButton" name="pushButton">
+      <property name="text">
+       <string>显示按钮</string>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>299</width>
+     <height>28</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>