wxAuiMDIParentFrame with splitter and toolbar

/////////////////////////////////////////////////////////////////////////////
// Name:        minimal.cpp
// Purpose:     Minimal wxWidgets sample
// Author:      Julian Smart
// Modified by: fioresoft.net
// Created:     04/01/98
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

// for all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWidgets headers)
#ifndef WX_PRECOMP
    #include "wx/wx.h"
#endif
#include "wx/aui/tabmdi.h"
#include "wx/splitter.h"
#include "bitmaps/new.xpm"
#include "bitmaps/open.xpm"
#include "bitmaps/save.xpm"
#include "bitmaps/bold.xpm"
#include "bitmaps/italic.xpm"
#include "bitmaps/underline.xpm"

#ifdef wxUSE_TOOLBARS
#undef wxUSE_TOOLBARS
#endif

// ----------------------------------------------------------------------------
// resources
// ----------------------------------------------------------------------------

// the application icon (under Windows it is in resources and even
// though we could still include the XPM here it would be unused)
#ifndef wxHAS_IMAGES_IN_RESOURCES
    #include "../sample.xpm"
#endif

// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------

// Define a new application type, each program should derive a class from wxApp
class MyApp : public wxApp
{
public:
    // override base class virtuals
    // ----------------------------

    // this one is called on application startup and is a good place for the app
    // initialization (doing it here and not in the ctor allows to have an error
    // return: if OnInit() returns false, the application terminates)
    virtual bool OnInit() wxOVERRIDE;
};

class MyChild : public wxAuiMDIChildFrame
{
public:
    MyChild(wxAuiMDIParentFrame *parent,const wxString& title) :wxAuiMDIChildFrame(parent, wxID_ANY, title,wxDefaultPosition,
        wxDefaultSize,wxDEFAULT_FRAME_STYLE)
    {
        wxTextCtrl* text = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE);
    }
};

// Define a new frame type: this is going to be our main frame
class MyFrame : public wxAuiMDIParentFrame
{
    wxSplitterWindow* hsplitter;
public:
    // ctor(s)
    MyFrame(const wxString& title);

    // event handlers (these functions should _not_ be virtual)
    void OnQuit(wxCommandEvent& event);
    void OnAbout(wxCommandEvent& event);
    void OnNew(wxCommandEvent& event);
    void OnCascade(wxCommandEvent& event);
    void OnTile(wxCommandEvent& event);
    void OnClose(wxCommandEvent& event);
    void OnCloseAll(wxCommandEvent& event);
    void OnFrameClose(wxCloseEvent& event);
    void OnSize(wxSizeEvent& event);

private:
    // any class wishing to process wxWidgets events must use this macro
    wxDECLARE_EVENT_TABLE();
};

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

// IDs for the controls and the menu commands
enum
{
    // menu items
    Minimal_Quit = wxID_EXIT,

    // it is important for the id corresponding to the "About" command to have
    // this standard value as otherwise it won't be handled properly under Mac
    // (where it is special and put into the "Apple" menu)
    Minimal_About = wxID_ABOUT
};

// ----------------------------------------------------------------------------
// event tables and other macros for wxWidgets
// ----------------------------------------------------------------------------

// the event tables connect the wxWidgets events with the functions (event
// handlers) which process them. It can be also done at run-time, but for the
// simple menu events like this the static method is much simpler.
wxBEGIN_EVENT_TABLE(MyFrame, wxAuiMDIParentFrame)
    EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
    EVT_MENU(Minimal_About, MyFrame::OnAbout)
    EVT_MENU(wxID_NEW,MyFrame::OnNew)
    EVT_MENU(wxID_MDI_WINDOW_CASCADE,MyFrame::OnCascade)
    EVT_MENU(wxID_MDI_WINDOW_TILE_HORZ,MyFrame::OnTile)
    EVT_MENU(wxID_CLOSE,MyFrame::OnClose)
    EVT_MENU(wxID_CLOSE_ALL,MyFrame::OnCloseAll)
    EVT_CLOSE(MyFrame::OnFrameClose)
    EVT_SIZE(MyFrame::OnSize)
wxEND_EVENT_TABLE()

// Create a new application object: this macro will allow wxWidgets to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also implements the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// not wxApp)
wxIMPLEMENT_APP(MyApp);

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------

// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
    // call the base class initialization method, currently it only parses a
    // few common command-line options but it could be do more in the future
    if ( !wxApp::OnInit() )
        return false;

    // create the main application window
    MyFrame *frame = new MyFrame("Minimal wxWidgets App");

    // and show it (the frames, unlike simple controls, are not shown when
    // created initially)
    frame->Show(true);

    // success: wxApp::OnRun() will be called which will enter the main message
    // loop and the application will run. If we returned false here, the
    // application would exit immediately.
    return true;
}

// ----------------------------------------------------------------------------
// main frame
// ----------------------------------------------------------------------------

// frame constructor
MyFrame::MyFrame(const wxString& title)
    : wxAuiMDIParentFrame(NULL, wxID_ANY, title, wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_STYLE),
    hsplitter(nullptr)//,panel(nullptr),edit(nullptr)
{
    // set the frame icon
    SetIcon(wxICON(sample));

#if wxUSE_MENUBAR
    // create a menu bar
    wxMenu* fileMenu = new wxMenu;

    // the "About" item should be in the help menu
    wxMenu* helpMenu = new wxMenu;
    helpMenu->Append(Minimal_About, "&About\tF1", "Show about dialog");

    fileMenu->Append(wxID_NEW, wxT("&New"));
    fileMenu->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program");

    // now append the freshly created menu to the menu bar...
    wxMenuBar* menuBar = new wxMenuBar();
    menuBar->Append(fileMenu, "&File");
    menuBar->Append(helpMenu, "&Help");

    wxMenu* menu = GetWindowMenu();
    menu->Append(wxID_MDI_WINDOW_TILE_HORZ, wxT("&Tile"));
    menu->Append(wxID_MDI_WINDOW_CASCADE, wxT("&Cascade"));

    // ... and attach this menu bar to the frame
    SetMenuBar(menuBar);
#else // !wxUSE_MENUBAR
    // If menus are not available add a button to access the about box
    wxSizer* sizer = new wxBoxSizer(wxHORIZONTAL);
    wxButton* aboutBtn = new wxButton(this, wxID_ANY, "About...");
    aboutBtn->Bind(wxEVT_BUTTON, &MyFrame::OnAbout, this);
    sizer->Add(aboutBtn, wxSizerFlags().Center());
    SetSizer(sizer);
#endif // wxUSE_MENUBAR/!wxUSE_MENUBAR

#if wxUSE_STATUSBAR
    // create a status bar just for fun (by default with 1 pane only)
    CreateStatusBar(2);
    SetStatusText("Welcome to wxWidgets!");
#endif // wxUSE_STATUSBAR
#if 0//wxUSE_TOOLBAR
    wxToolBar* tb = CreateToolBar();
    wxBitmap bmpNew(new_xpm);
    wxBitmap bmpOpen(open_xpm);
    wxBitmap bmpSave(save_xpm);
    wxBitmap bmpBold(bold_xpm);
    wxBitmap bmpItalic(italic_xpm);
    wxBitmap bmpUnderline(underline_xpm);

    tb->AddTool(wxID_NEW, wxT("new"), bmpNew, wxT("new file"));
    tb->AddTool(wxID_OPEN, wxT("open"), bmpOpen, wxT("open file"));
    tb->AddTool(wxID_SAVE, wxT("save"), bmpSave, wxT("save file"));
    tb->AddSeparator();
    tb->AddTool(wxID_BOLD, wxT("bold"), bmpBold, wxT("bold"));
    tb->AddTool(wxID_ITALIC, wxT("italic"), bmpItalic, wxT("italic"));
    tb->AddTool(wxID_UNDERLINE, wxT("underline"), bmpUnderline, wxT("underline"));

    SetToolBar(tb);
    tb->Realize();
#endif
    const wxString choices[] = { "hello","damn","world" };

    hsplitter = new wxSplitterWindow(\
        this,
        -1,
        wxDefaultPosition,
        wxDefaultSize,
        wxSP_LIVE_UPDATE | wxSP_3D | wxSP_NO_XP_THEME);

    wxAuiMDIClientWindow* client = GetClientWindow();
    client->SetParent(hsplitter);
    hsplitter->SplitHorizontally(new wxListBox(hsplitter, wxID_ANY, wxDefaultPosition, wxDefaultSize,3,choices),
        client);
    hsplitter->SetSashGravity(0.5);
}


// event handlers

void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
    // true is to force the frame to close
    Close(true);
}

void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
    wxMessageBox(wxString::Format
                 (
                    "Welcome to %s!\n"
                    "\n"
                    "This is the minimal wxWidgets sample\n"
                    "running under %s.",
                    wxVERSION_STRING,
                    wxGetOsDescription()
                 ),
                 "About wxWidgets minimal sample",
                 wxOK | wxICON_INFORMATION,
                 this);
}

void MyFrame::OnNew(wxCommandEvent& event)
{
    static int i = 0;

    MyChild* p = new MyChild(this, wxString::Format(wxT("child %d"), ++i));
    p->Show(true);
}

void MyFrame::OnCascade(wxCommandEvent& event)
{
    this->Cascade();
}

void MyFrame::OnTile(wxCommandEvent& event)
{
    this->Tile();
}

void MyFrame::OnClose(wxCommandEvent& event)
{
    wxAuiMDIChildFrame* child = GetActiveChild();
    bool res = child->Close();
    wxASSERT(res);
}

void MyFrame::OnCloseAll(wxCommandEvent& event)
{
    wxWindowList &list = this->GetChildren();
    for (wxWindowList::iterator it = list.begin(); it != list.end(); it++) {
        (*it)->Close();
    }
}

void MyFrame::OnFrameClose(wxCloseEvent& event)
{
    wxWindowList& list = this->GetChildren();
    for (wxWindowList::iterator it = list.begin(); it != list.end(); it++) {
        (*it)->Close();
    }
    GetClientWindow()->SetParent(this);
    event.Skip();
}

void MyFrame::OnSize(wxSizeEvent& event)
{
    if (hsplitter) {
        wxRect rc = GetClientRect();
        hsplitter->SetSize(rc);
    }
    event.Skip();
}