minimal.cpp 7.18 KB
// ============================================================================
// 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" wxWindows headers)
#ifndef WX_PRECOMP
    #include "wx/wx.h"
#endif

#include "wx/txtstrm.h"

#if !wxUSE_DOC_VIEW_ARCHITECTURE
#error You must set wxUSE_DOC_VIEW_ARCHITECTURE to 1 in setup.h!
#endif
#include "wx/mdi.h"
#include "wx/docview.h"
#include "wx/docmdi.h"
#include "wx/cmdproc.h"

#include <list>
#include <iostream>
#include <fstream>
using namespace std;

// ----------------------------------------------------------------------------
// 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

// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// Define a new application

class MyFrame;

class MyApp: public wxApp
{
  private:
	MyFrame *frame;
  public:
    MyApp(void);
    bool OnInit(void);
    int OnExit(void);
    MyFrame *GetMainFrame(void);
    wxMDIChildFrame *CreateChildFrame(wxDocument *doc, wxView *view, bool isCanvas);

  protected:
    wxDocManager* m_docManager;
};

DECLARE_APP(MyApp)

// Define a new frame
class MyCanvas;
class MyFrame: public wxDocMDIParentFrame
{
  DECLARE_CLASS(MyFrame)
 public:
  MyFrame(wxDocManager *manager, wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size,
    long type);

  void OnAbout(wxCommandEvent& event);
  MyCanvas *CreateCanvas(wxView *view, wxMDIChildFrame *parent);

DECLARE_EVENT_TABLE()
};


class MyCanvas: public wxScrolledWindow
{
};

#define DOCVIEW_CUT   1
#define DOCVIEW_ABOUT   2

// ----------------------------------------------------------------------------
// implementations
// ----------------------------------------------------------------------------


IMPLEMENT_APP(MyApp)

MyApp::MyApp(void)
{
    m_docManager = (wxDocManager *) NULL;
}

MyFrame * MyApp::GetMainFrame(void)
{
    return frame;
}


bool MyApp::OnInit(void)
{
  //// Create a document manager
  m_docManager = new wxDocManager;

  //// Create the main frame window
  frame = new MyFrame((wxDocManager *) m_docManager, (wxFrame *) NULL,
                      _T("DocView Demo"), wxPoint(0, 0), wxSize(500, 400),
                      wxDEFAULT_FRAME_STYLE);

  //// Give it an icon (this is ignored in MDI mode: uses resources)
#ifdef __WXMSW__
  frame->SetIcon(wxIcon(_T("doc")));
#endif
#ifdef __X__
  frame->SetIcon(wxIcon(_T("doc.xbm")));
#endif

  //// Make a menubar
  wxMenu *file_menu = new wxMenu;

  file_menu->Append(wxID_NEW, _T("&New...\tCtrl-N"));
  file_menu->Append(wxID_OPEN, _T("&Open...\tCtrl-X"));

  file_menu->AppendSeparator();
  file_menu->Append(wxID_EXIT, _T("E&xit\tAlt-X"));

  // A nice touch: a history of files visited. Use this menu.
  m_docManager->FileHistoryUseMenu(file_menu);

  wxMenu *help_menu = new wxMenu;
  help_menu->Append(DOCVIEW_ABOUT, _T("&About\tF1"));

  wxMenuBar *menu_bar = new wxMenuBar;

  menu_bar->Append(file_menu, _T("&File"));
  menu_bar->Append(help_menu, _T("&Help"));

  //// Associate the menu bar with the frame
  frame->SetMenuBar(menu_bar);

  frame->Centre(wxBOTH);
  frame->Show(TRUE);

  SetTopWindow(frame);
  return TRUE;
}

int MyApp::OnExit(void)
{
    delete m_docManager;
    return 0;
}

/*
 * Centralised code for creating a document frame.
 * Called from view.cpp, when a view is created.
 */
 
wxMDIChildFrame *MyApp::CreateChildFrame(wxDocument *doc, wxView *view, bool isCanvas)
{
  //// Make a child frame
  wxDocMDIChildFrame *subframe =
      new wxDocMDIChildFrame(doc, view, GetMainFrame(), -1, _T("Child Frame"),
							 wxDefaultPosition, wxDefaultSize,
                             wxDEFAULT_FRAME_STYLE |
							 wxMAXIMIZE);
#ifdef __WXMSW__
  subframe->SetIcon(wxString(isCanvas ? _T("chart") : _T("notepad")));
#endif
#ifdef __X__
  subframe->SetIcon(wxIcon(_T("doc.xbm")));
#endif

  //// Make a menubar
  wxMenu *file_menu = new wxMenu;

  file_menu->Append(wxID_NEW, _T("&New..."));
  file_menu->Append(wxID_OPEN, _T("&Open..."));
  file_menu->Append(wxID_CLOSE, _T("&Close"));
  file_menu->Append(wxID_SAVE, _T("&Save"));
  file_menu->Append(wxID_SAVEAS, _T("Save &As..."));

  if (isCanvas)
  {
    file_menu->AppendSeparator();
    file_menu->Append(wxID_PRINT, _T("&Print..."));
    file_menu->Append(wxID_PRINT_SETUP, _T("Print &Setup..."));
    file_menu->Append(wxID_PREVIEW, _T("Print Pre&view"));
  }

  file_menu->AppendSeparator();
  file_menu->Append(wxID_EXIT, _T("E&xit"));

  wxMenu *edit_menu = (wxMenu *) NULL;

  if (isCanvas)
  {
    edit_menu = new wxMenu;
    edit_menu->Append(wxID_UNDO, _T("&Undo"));
    edit_menu->Append(wxID_REDO, _T("&Redo"));
    edit_menu->AppendSeparator();
    edit_menu->Append(DOCVIEW_CUT, _T("&Cut last segment"));

    doc->GetCommandProcessor()->SetEditMenu(edit_menu);
  }

  wxMenu *help_menu = new wxMenu;
  help_menu->Append(DOCVIEW_ABOUT, _T("&About"));

  wxMenuBar *menu_bar = new wxMenuBar;

  menu_bar->Append(file_menu, _T("&File"));
  if (isCanvas)
    menu_bar->Append(edit_menu, _T("&Edit"));
  menu_bar->Append(help_menu, _T("&Help"));

  //// Associate the menu bar with the frame
  subframe->SetMenuBar(menu_bar);

  return subframe;
}

/*
 * This is the top-level window of the application.
 */
 
IMPLEMENT_CLASS(MyFrame, wxDocMDIParentFrame)
BEGIN_EVENT_TABLE(MyFrame, wxDocMDIParentFrame)
    EVT_MENU(DOCVIEW_ABOUT, MyFrame::OnAbout)
END_EVENT_TABLE()

MyFrame::MyFrame(wxDocManager *manager, wxFrame *frame, const wxString& title,
    const wxPoint& pos, const wxSize& size, long type):
  wxDocMDIParentFrame(manager, frame, -1, title, pos, size, type, _T("myFrame"))
{
}

void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
{
    (void)wxMessageBox(_T("DocView Demo\nAuthor: Julian Smart\nUsage: docview.exe"), _T("About DocView"));
}

// Creates a canvas. Called from view.cpp when a new drawing
// view is created.
MyCanvas *MyFrame::CreateCanvas(wxView *view, wxMDIChildFrame *parent)
{
  int width, height;
  parent->GetClientSize(&width, &height);

  // Non-retained canvas
  MyCanvas *canvas = (MyCanvas*) new wxScrolledWindow(parent, -1, wxPoint(0, 0), wxSize(width, height), 0);
  canvas->SetCursor(wxCursor(wxCURSOR_PENCIL));

  // Give it scrollbars
  canvas->SetScrollbars(20, 20, 50, 50);

  return canvas;
}