106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
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// wxWidgets "Hello world" Program
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// For compilers that support precompilation, includes "wx/wx.h".
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#include <iostream>
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#include <opencv2/opencv.hpp>
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#include <sys/stat.h>
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#include <string>
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#include <vector>
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#include <algorithm>
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#include <wx/wxprec.h>
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#ifndef WX_PRECOMP
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#include <wx/wx.h>
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#endif
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using namespace std;
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using namespace cv;
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class ExampleApp: public wxApp
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{
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public:
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virtual bool OnInit();
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};
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class OpenCVwx: public wxFrame
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{
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public:
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OpenCVwx(const wxString& title, const wxPoint& pos, const wxSize& size);
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wxImage wx_from_mat(Mat& img);
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private:
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void OnHello(wxCommandEvent& event);
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void OnExit(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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wxDECLARE_EVENT_TABLE();
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};
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enum
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{
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ID_Hello = 1
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};
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wxBEGIN_EVENT_TABLE(OpenCVwx, wxFrame)
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EVT_MENU(ID_Hello, OpenCVwx::OnHello)
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EVT_MENU(wxID_EXIT, OpenCVwx::OnExit)
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EVT_MENU(wxID_ABOUT, OpenCVwx::OnAbout)
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wxEND_EVENT_TABLE()
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wxIMPLEMENT_APP(ExampleApp);
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bool ExampleApp::OnInit()
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{
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OpenCVwx *frame = new OpenCVwx( "OpenCV+wxWidgets Example", wxPoint(50, 50), wxSize(450, 340) );
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Mat image(100, 100, CV_8UC3, Scalar(0, 0, 0));
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wxImage displayImage = frame->wx_from_mat(image);
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wxBitmap bitmap(displayImage.Scale(100, 100, wxIMAGE_QUALITY_HIGH));
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wxPaintDC dc(frame);
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dc.DrawBitmap(bitmap, 0, 0);
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frame->Show( true );
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return true;
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}
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OpenCVwx::OpenCVwx(const wxString& title, const wxPoint& pos, const wxSize& size)
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: wxFrame(NULL, wxID_ANY, title, pos, size)
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{
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wxMenu *menuFile = new wxMenu;
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menuFile->Append(ID_Hello, "&Hello...\tCtrl-H",
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"Help string shown in status bar for this menu item");
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menuFile->AppendSeparator();
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menuFile->Append(wxID_EXIT);
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wxMenu *menuHelp = new wxMenu;
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menuHelp->Append(wxID_ABOUT);
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wxMenuBar *menuBar = new wxMenuBar;
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menuBar->Append( menuFile, "&File" );
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menuBar->Append( menuHelp, "&Help" );
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SetMenuBar( menuBar );
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CreateStatusBar();
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SetStatusText( "Welcome to wxWidgets!" );
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//ShowFullScreen(true, wxFULLSCREEN_ALL);
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}
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void OpenCVwx::OnExit(wxCommandEvent& event)
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{
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Close( true );
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}
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void OpenCVwx::OnAbout(wxCommandEvent& event)
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{
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wxMessageBox( "This is a wxWidgets' Hello world sample",
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"About Hello World", wxOK | wxICON_INFORMATION );
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}
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void OpenCVwx::OnHello(wxCommandEvent& event)
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{
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wxLogMessage("This app uses OpenCV");
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}
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//https://forums.wxwidgets.org/viewtopic.php?t=46670
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wxImage OpenCVwx::wx_from_mat(Mat& img)
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{
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Mat im2;
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if (img.channels() == 1) { cvtColor(img, im2, COLOR_GRAY2RGB); }
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else if (img.channels() == 4) { cvtColor(img, im2, COLOR_BGRA2RGB); }
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else { cvtColor(img, im2, COLOR_BGR2RGB); }
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long imsize = im2.rows * im2.cols * im2.channels();
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wxImage wx(im2.cols, im2.rows, (unsigned char*)malloc(imsize), false);
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unsigned char* s = im2.data;
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unsigned char* d = wx.GetData();
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for (long i = 0; i < imsize; i++) { d[i] = s[i]; }
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return wx;
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return wxImage();
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}
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