C++ GUI : wxWidgets(Hello World 파일 분리)

* 코드 유지보수성과 가독성을 위해 파일을 분리함.

 

1. wxWidgets Hello World : https://docs.wxwidgets.org/3.2/overview_helloworld.html

 

2. 파일 구성 : Main.h, Main.cpp, MyFrame.h, MyFrame.cpp

 

1. Mian.h

#pragma once

// wxWidgets "Hello World" Program

// For compilers that support precompilation, includes "wx/wx.h".
#include <wx/wxprec.h>

#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif

class MyApp : public wxApp
{
public:
    virtual bool OnInit();
};

 

2. Main.cpp

#include "Main.h"
#include "MyFrame.h"

wxIMPLEMENT_APP(MyApp);

bool MyApp::OnInit()
{
    MyFrame* frame = new MyFrame();
    frame->Show(true);
    return true;
}

 

3. MyFrame.h

#pragma once

#include <wx/wx.h>

class MyFrame : public wxFrame
{
public:
    MyFrame();

private:
    void OnHello(wxCommandEvent& event);
    void OnExit(wxCommandEvent& event);
    void OnAbout(wxCommandEvent& event);
};

enum
{
    ID_Hello = 1
};

 

4. MyFrame.cpp

#include "MyFrame.h"

MyFrame::MyFrame()
    : wxFrame(NULL, wxID_ANY, "Hello World")
{
    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!");

    Bind(wxEVT_MENU, &MyFrame::OnHello, this, ID_Hello);
    Bind(wxEVT_MENU, &MyFrame::OnAbout, this, wxID_ABOUT);
    Bind(wxEVT_MENU, &MyFrame::OnExit, this, wxID_EXIT);
}

void MyFrame::OnExit(wxCommandEvent& event)
{
    Close(true);
}

void MyFrame::OnAbout(wxCommandEvent& event)
{
    wxMessageBox("This is a wxWidgets Hello World example",
        "About Hello World", wxOK | wxICON_INFORMATION);
}

void MyFrame::OnHello(wxCommandEvent& event)
{
    wxLogMessage("Hello world from wxWidgets!");
}