Win32 Programmierung Tutorial

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/*
 * Copyright (c) 2006 Jan Bracker
 *
 * main.cpp
 */


// HEADER-INFOMATION ===========================================================
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/wx.h"
#endif

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

// the application icon (under Windows and OS/2 it is in resources)
#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__)
    #include "mondrian.xpm"
#endif


// MAIN APPLICATION ============================================================
class MainApplication : public wxApp
{
public:
    virtual bool OnInit();

    void OnClickTestButton();
	void OnClickBottomButton();

private:
	wxFrame *mainFrame;
	wxButton *testButton;
	wxButton *bottomButton;
	wxTextCtrl *textArea;
};

// MAIN FRAMM CLASS ============================================================
class MainFrame : public wxFrame
{
public:
    MainFrame(const wxString& title, const wxPoint& pos, const wxSize& size,
            long style = wxDEFAULT_FRAME_STYLE);

    void OnQuit(wxCommandEvent& event);
    void OnAbout(wxCommandEvent& event);

private:
    DECLARE_EVENT_TABLE();
};

// MAIN PROGRAMM SOURCE ========================================================

// MainApplication::OnInit() ---------------------------------------------------
bool MainApplication::OnInit()
{
	this->mainFrame = new MainFrame(_T("Minimal wxWindows App"), wxPoint(50, 50), wxSize(450, 340));
	this->mainFrame->SetBackgroundColour(0x00ff0000);

	this->testButton = new wxButton(this->mainFrame, 100, _T("Close"),
			wxPoint(20, 20), wxSize(100, 50), wxBU_TOP);
	this->testButton->Show(true);

	this->bottomButton = new wxButton(this->mainFrame, 101, _T("Hallo"),
			wxPoint(120, 20), wxSize(100, 50), wxBU_LEFT);
	this->bottomButton->Show(true);

	this->textArea = new wxTextCtrl(this->mainFrame, wxID_ANY, wxString("Initial Value of a TextField"), wxPoint(100, 100), wxSize(300, 300));
	this->textArea->Show(true);

    this->mainFrame->Show(true);

    return true;
}

void MainApplication::OnClickTestButton()
{
	this->mainFrame->Close(true);
}
void MainApplication::OnClickBottomButton()
{
	this->textArea->SetValue(wxString("Test"));
//	this->bottomButton->SetLabel(this->textArea->GetValue());
}

MainFrame::MainFrame(const wxString& title, const wxPoint& pos, const wxSize& size, long style)
       : wxFrame(NULL, -1, title, pos, size, style)
{
    SetIcon(wxICON(mondrian));
}

// MainFrame Event Handlers ----------------------------------------------------
void MainFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
    Close(true);
}

void MainFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
    wxString msg;
    msg.Printf( _T("This is the About dialog of the minimal sample.\n")
                _T("Welcome to %s"), wxVERSION_STRING);

    wxMessageBox(msg, _T("About Minimal"), wxOK | wxICON_INFORMATION, this);
}








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

// IDs for the controls and the menu commands
enum
{
    // menu items
    Minimal_Quit = 1,

    // 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 wxWindows
// ----------------------------------------------------------------------------

// the event tables connect the wxWindows 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.
BEGIN_EVENT_TABLE(MainFrame, wxFrame)
    EVT_MENU(Minimal_Quit,  MainFrame::OnQuit)
    EVT_MENU(Minimal_About, MainFrame::OnAbout)
	EVT_BUTTON(100, MainApplication::OnClickTestButton)
	EVT_BUTTON(101, MainApplication::OnClickBottomButton)
END_EVENT_TABLE()

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