commit 93dba0d3fb9b4a1c41271d930b085464266dc702 Author: mmcwilliams Date: Sat Aug 5 14:02:02 2023 -0400 Create wxwidgets example with opencv diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c795b05 --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +build \ No newline at end of file diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..66e8260 --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,11 @@ +cmake_minimum_required(VERSION 3.20) +project(wxTest) + +set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake-modules) + +find_package(OpenCV HINTS /usr/local/opt/opencv /usr/local/Cellar/opencv REQUIRED) +find_package(wxWidgets REQUIRED gl core base OPTIONAL_COMPONENTS net) +include(${wxWidgets_USE_FILE}) + +add_executable(wxTest main.cpp) +target_link_libraries(wxTest PRIVATE ${wxWidgets_LIBRARIES} ${OpenCV_LIBS}) diff --git a/cmake-modules/FindOpenCV.cmake b/cmake-modules/FindOpenCV.cmake new file mode 100644 index 0000000..875528e --- /dev/null +++ b/cmake-modules/FindOpenCV.cmake @@ -0,0 +1,173 @@ +# =================================================================================== +# The OpenCV CMake configuration file +# +# ** File generated automatically, do not modify ** +# +# Usage from an external project: +# In your CMakeLists.txt, add these lines: +# +# FIND_PACKAGE(OpenCV REQUIRED) +# TARGET_LINK_LIBRARIES(MY_TARGET_NAME ${OpenCV_LIBS}) +# +# Or you can search for specific OpenCV modules: +# +# FIND_PACKAGE(OpenCV REQUIRED core imgcodecs) +# +# If the module is found then OPENCV__FOUND is set to TRUE. +# +# This file will define the following variables: +# - OpenCV_LIBS : The list of libraries to link against. +# - OpenCV_LIB_DIR : The directory(es) where lib files are. Calling LINK_DIRECTORIES +# with this path is NOT needed. +# - OpenCV_INCLUDE_DIRS : The OpenCV include directories. +# - OpenCV_COMPUTE_CAPABILITIES : The version of compute capability +# - OpenCV_ANDROID_NATIVE_API_LEVEL : Minimum required level of Android API +# - OpenCV_VERSION : The version of this OpenCV build. Example: "2.4.0" +# - OpenCV_VERSION_MAJOR : Major version part of OpenCV_VERSION. Example: "2" +# - OpenCV_VERSION_MINOR : Minor version part of OpenCV_VERSION. Example: "4" +# - OpenCV_VERSION_PATCH : Patch version part of OpenCV_VERSION. Example: "0" +# +# Advanced variables: +# - OpenCV_SHARED +# - OpenCV_CONFIG_PATH +# - OpenCV_LIB_COMPONENTS +# +# =================================================================================== +# +# Windows pack specific options: +# - OpenCV_STATIC +# - OpenCV_CUDA + +if(CMAKE_VERSION VERSION_GREATER 2.6) + get_property(OpenCV_LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES) + if(NOT ";${OpenCV_LANGUAGES};" MATCHES ";CXX;") + enable_language(CXX) + endif() +endif() + +if(NOT DEFINED OpenCV_STATIC) + # look for global setting + if(BUILD_SHARED_LIBS) + set(OpenCV_STATIC OFF) + else() + set(OpenCV_STATIC ON) + endif() +endif() + +if(NOT DEFINED OpenCV_CUDA) + # if user' app uses CUDA, then it probably wants CUDA-enabled OpenCV binaries + if(CUDA_FOUND) + set(OpenCV_CUDA ON) + endif() +endif() + +if(MSVC) + if(CMAKE_CL_64) + set(OpenCV_ARCH x64) + set(OpenCV_TBB_ARCH intel64) + elseif((CMAKE_GENERATOR MATCHES "ARM") OR ("${arch_hint}" STREQUAL "ARM") OR (CMAKE_VS_EFFECTIVE_PLATFORMS MATCHES "ARM|arm")) + # see Modules/CmakeGenericSystem.cmake + set(OpenCV_ARCH ARM) + else() + set(OpenCV_ARCH x86) + set(OpenCV_TBB_ARCH ia32) + endif() + if(MSVC_VERSION EQUAL 1400) + set(OpenCV_RUNTIME vc8) + elseif(MSVC_VERSION EQUAL 1500) + set(OpenCV_RUNTIME vc9) + elseif(MSVC_VERSION EQUAL 1600) + set(OpenCV_RUNTIME vc10) + elseif(MSVC_VERSION EQUAL 1700) + set(OpenCV_RUNTIME vc11) + elseif(MSVC_VERSION EQUAL 1800) + set(OpenCV_RUNTIME vc12) + elseif(MSVC_VERSION EQUAL 1900) + set(OpenCV_RUNTIME vc14) + endif() +elseif(MINGW) + set(OpenCV_RUNTIME mingw) + + execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpmachine + OUTPUT_VARIABLE OPENCV_GCC_TARGET_MACHINE + OUTPUT_STRIP_TRAILING_WHITESPACE) + if(OPENCV_GCC_TARGET_MACHINE MATCHES "amd64|x86_64|AMD64") + set(MINGW64 1) + set(OpenCV_ARCH x64) + else() + set(OpenCV_ARCH x86) + endif() +endif() + +if(CMAKE_VERSION VERSION_GREATER 2.6.2) + unset(OpenCV_CONFIG_PATH CACHE) +endif() + +if(NOT OpenCV_FIND_QUIETLY) + message(STATUS "OpenCV ARCH: ${OpenCV_ARCH}") + message(STATUS "OpenCV RUNTIME: ${OpenCV_RUNTIME}") + message(STATUS "OpenCV STATIC: ${OpenCV_STATIC}") +endif() + +get_filename_component(OpenCV_CONFIG_PATH "${CMAKE_CURRENT_LIST_FILE}" PATH CACHE) +if(OpenCV_RUNTIME AND OpenCV_ARCH) + if(OpenCV_STATIC AND EXISTS "${OpenCV_CONFIG_PATH}/${OpenCV_ARCH}/${OpenCV_RUNTIME}/staticlib/OpenCVConfig.cmake") + if(OpenCV_CUDA AND EXISTS "${OpenCV_CONFIG_PATH}/gpu/${OpenCV_ARCH}/${OpenCV_RUNTIME}/staticlib/OpenCVConfig.cmake") + set(OpenCV_LIB_PATH "${OpenCV_CONFIG_PATH}/gpu/${OpenCV_ARCH}/${OpenCV_RUNTIME}/staticlib") + else() + set(OpenCV_LIB_PATH "${OpenCV_CONFIG_PATH}/${OpenCV_ARCH}/${OpenCV_RUNTIME}/staticlib") + endif() + elseif(EXISTS "${OpenCV_CONFIG_PATH}/${OpenCV_ARCH}/${OpenCV_RUNTIME}/lib/OpenCVConfig.cmake") + if(OpenCV_CUDA AND EXISTS "${OpenCV_CONFIG_PATH}/gpu/${OpenCV_ARCH}/${OpenCV_RUNTIME}/lib/OpenCVConfig.cmake") + set(OpenCV_LIB_PATH "${OpenCV_CONFIG_PATH}/gpu/${OpenCV_ARCH}/${OpenCV_RUNTIME}/lib") + else() + set(OpenCV_LIB_PATH "${OpenCV_CONFIG_PATH}/${OpenCV_ARCH}/${OpenCV_RUNTIME}/lib") + endif() + endif() +endif() + +if(OpenCV_LIB_PATH AND EXISTS "${OpenCV_LIB_PATH}/OpenCVConfig.cmake") + set(OpenCV_LIB_DIR_OPT "${OpenCV_LIB_PATH}" CACHE PATH "Path where release OpenCV libraries are located" FORCE) + set(OpenCV_LIB_DIR_DBG "${OpenCV_LIB_PATH}" CACHE PATH "Path where debug OpenCV libraries are located" FORCE) + set(OpenCV_3RDPARTY_LIB_DIR_OPT "${OpenCV_LIB_PATH}" CACHE PATH "Path where release 3rdparty OpenCV dependencies are located" FORCE) + set(OpenCV_3RDPARTY_LIB_DIR_DBG "${OpenCV_LIB_PATH}" CACHE PATH "Path where debug 3rdparty OpenCV dependencies are located" FORCE) + + include("${OpenCV_LIB_PATH}/OpenCVConfig.cmake") + + if(OpenCV_CUDA) + set(_OpenCV_LIBS "") + foreach(_lib ${OpenCV_LIBS}) + string(REPLACE "${OpenCV_CONFIG_PATH}/gpu/${OpenCV_ARCH}/${OpenCV_RUNTIME}" "${OpenCV_CONFIG_PATH}/${OpenCV_ARCH}/${OpenCV_RUNTIME}" _lib2 "${_lib}") + if(NOT EXISTS "${_lib}" AND EXISTS "${_lib2}") + list(APPEND _OpenCV_LIBS "${_lib2}") + else() + list(APPEND _OpenCV_LIBS "${_lib}") + endif() + endforeach() + set(OpenCV_LIBS ${_OpenCV_LIBS}) + endif() + set(OpenCV_FOUND TRUE CACHE BOOL "" FORCE) + set(OPENCV_FOUND TRUE CACHE BOOL "" FORCE) + + if(NOT OpenCV_FIND_QUIETLY) + message(STATUS "Found OpenCV ${OpenCV_VERSION} in ${OpenCV_LIB_PATH}") + if(NOT OpenCV_LIB_PATH MATCHES "/staticlib") + get_filename_component(_OpenCV_LIB_PATH "${OpenCV_LIB_PATH}/../bin" ABSOLUTE) + file(TO_NATIVE_PATH "${_OpenCV_LIB_PATH}" _OpenCV_LIB_PATH) + message(STATUS "You might need to add ${_OpenCV_LIB_PATH} to your PATH to be able to run your applications.") + if(OpenCV_LIB_PATH MATCHES "/gpu/") + string(REPLACE "\\gpu" "" _OpenCV_LIB_PATH2 "${_OpenCV_LIB_PATH}") + message(STATUS "GPU support is enabled so you might also need ${_OpenCV_LIB_PATH2} in your PATH (it must go after the ${_OpenCV_LIB_PATH}).") + endif() + endif() + endif() +else() + if(NOT OpenCV_FIND_QUIETLY) + message(WARNING +"Found OpenCV Windows Pack but it has no binaries compatible with your configuration. +You should manually point CMake variable OpenCV_DIR to your build of OpenCV library." + ) + endif() + set(OpenCV_FOUND FALSE CACHE BOOL "" FORCE) + set(OPENCV_FOUND FALSE CACHE BOOL "" FORCE) +endif() \ No newline at end of file diff --git a/compile.sh b/compile.sh new file mode 100644 index 0000000..7917863 --- /dev/null +++ b/compile.sh @@ -0,0 +1,6 @@ +#!/bin/bash + +mkdir -p build +cd build +cmake .. +make -j # builds with all cores \ No newline at end of file diff --git a/main.cpp b/main.cpp new file mode 100644 index 0000000..4169d3d --- /dev/null +++ b/main.cpp @@ -0,0 +1,106 @@ +// wxWidgets "Hello world" Program +// For compilers that support precompilation, includes "wx/wx.h". + +#include +#include +#include +#include +#include +#include + +#include +#ifndef WX_PRECOMP + #include +#endif + +using namespace std; +using namespace cv; + +class ExampleApp: public wxApp +{ +public: + virtual bool OnInit(); +}; +class OpenCVwx: public wxFrame +{ +public: + OpenCVwx(const wxString& title, const wxPoint& pos, const wxSize& size); + wxImage wx_from_mat(Mat& img); +private: + void OnHello(wxCommandEvent& event); + void OnExit(wxCommandEvent& event); + void OnAbout(wxCommandEvent& event); + wxDECLARE_EVENT_TABLE(); +}; +enum +{ + ID_Hello = 1 +}; +wxBEGIN_EVENT_TABLE(OpenCVwx, wxFrame) + EVT_MENU(ID_Hello, OpenCVwx::OnHello) + EVT_MENU(wxID_EXIT, OpenCVwx::OnExit) + EVT_MENU(wxID_ABOUT, OpenCVwx::OnAbout) +wxEND_EVENT_TABLE() +wxIMPLEMENT_APP(ExampleApp); +bool ExampleApp::OnInit() +{ + OpenCVwx *frame = new OpenCVwx( "OpenCV+wxWidgets Example", wxPoint(50, 50), wxSize(450, 340) ); + + Mat image(100, 100, CV_8UC3, Scalar(0, 0, 0)); + wxImage displayImage = frame->wx_from_mat(image); + wxBitmap bitmap(displayImage.Scale(100, 100, wxIMAGE_QUALITY_HIGH)); + wxPaintDC dc(frame); + dc.DrawBitmap(bitmap, 0, 0); + + frame->Show( true ); + + return true; +} +OpenCVwx::OpenCVwx(const wxString& title, const wxPoint& pos, const wxSize& size) + : wxFrame(NULL, wxID_ANY, title, pos, size) +{ + wxMenu *menuFile = new wxMenu; + menuFile->Append(ID_Hello, "&Hello...\tCtrl-H", + "Help string shown in status bar for this menu item"); + menuFile->AppendSeparator(); + menuFile->Append(wxID_EXIT); + wxMenu *menuHelp = new wxMenu; + menuHelp->Append(wxID_ABOUT); + wxMenuBar *menuBar = new wxMenuBar; + menuBar->Append( menuFile, "&File" ); + menuBar->Append( menuHelp, "&Help" ); + SetMenuBar( menuBar ); + CreateStatusBar(); + SetStatusText( "Welcome to wxWidgets!" ); + + //ShowFullScreen(true, wxFULLSCREEN_ALL); +} +void OpenCVwx::OnExit(wxCommandEvent& event) +{ + Close( true ); +} +void OpenCVwx::OnAbout(wxCommandEvent& event) +{ + wxMessageBox( "This is a wxWidgets' Hello world sample", + "About Hello World", wxOK | wxICON_INFORMATION ); +} +void OpenCVwx::OnHello(wxCommandEvent& event) +{ + wxLogMessage("This app uses OpenCV"); +} + +//https://forums.wxwidgets.org/viewtopic.php?t=46670 +wxImage OpenCVwx::wx_from_mat(Mat& img) +{ + Mat im2; + if (img.channels() == 1) { cvtColor(img, im2, COLOR_GRAY2RGB); } + else if (img.channels() == 4) { cvtColor(img, im2, COLOR_BGRA2RGB); } + else { cvtColor(img, im2, COLOR_BGR2RGB); } + long imsize = im2.rows * im2.cols * im2.channels(); + wxImage wx(im2.cols, im2.rows, (unsigned char*)malloc(imsize), false); + unsigned char* s = im2.data; + unsigned char* d = wx.GetData(); + for (long i = 0; i < imsize; i++) { d[i] = s[i]; } + return wx; + return wxImage(); +} \ No newline at end of file