samples/docview/docview.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        docview.cpp
   3 // Purpose:     Document/view demo
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 /*
  13 * Purpose:  Document/view architecture demo for wxWidgets class library
  14 *           Run with no arguments for multiple top-level windows, -single
  15 *           for a single window.
  16 */
  17
  18
  19 // For compilers that support precompilation, includes "wx/wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23 #pragma hdrstop
  24 #endif
  25
  26 #ifndef WX_PRECOMP
  27 #include "wx/wx.h"
  28 #endif
  29
  30 #if !wxUSE_DOC_VIEW_ARCHITECTURE
  31 #error You must set wxUSE_DOC_VIEW_ARCHITECTURE to 1 in setup.h!
  32 #endif
  33
  34 #include "wx/docview.h"
  35
  36 #include "docview.h"
  37 #include "doc.h"
  38 #include "view.h"
  39 #ifdef __WXMAC__
  40 #include "wx/filename.h"
  41 #endif
  42
  43 MyFrame *frame = (MyFrame *) NULL;
  44
  45 // In single window mode, don't have any child windows; use
  46 // main window.
  47 bool singleWindowMode = false;
  48
  49 IMPLEMENT_APP(MyApp)
  50
  51 MyApp::MyApp(void)
  52 {
  53     m_docManager = (wxDocManager *) NULL;
  54 }
  55
  56 bool MyApp::OnInit(void)
  57 {
  58     if ( !wxApp::OnInit() )
  59         return false;
  60
  61     //// Find out if we're:
  62     ////  multiple window: multiple windows, each view in a separate frame
  63     ////  single window:   one view (within the main frame) and one document at a time, as in Windows Write.
  64     ////                   In single window mode, we only allow one document type
  65     if (argc > 1)
  66     {
  67         if (wxStrcmp(argv[1], _T("-single")) == 0)
  68         {
  69             singleWindowMode = true;
  70         }
  71     }
  72
  73     //// Create a document manager
  74     m_docManager = new wxDocManager;
  75
  76     //// Create a template relating drawing documents to their views
  77     (void) new wxDocTemplate(m_docManager, _T("Drawing"), _T("*.drw"), _T(""), _T("drw"), _T("Drawing Doc"), _T("Drawing View"),
  78         CLASSINFO(DrawingDocument), CLASSINFO(DrawingView));
  79 #ifdef __WXMAC__
  80     wxFileName::MacRegisterDefaultTypeAndCreator( wxT("drw") , 'WXMB' , 'WXMA' ) ;
  81 #endif
  82
  83     if (singleWindowMode)
  84     {
  85         // If we've only got one window, we only get to edit
  86         // one document at a time. Therefore no text editing, just
  87         // doodling.
  88         m_docManager->SetMaxDocsOpen(1);
  89     }
  90     else
  91     {
  92         //// Create a template relating text documents to their views
  93         (void) new wxDocTemplate(m_docManager, _T("Text"), _T("*.txt;*.text"), _T(""), _T("txt;text"), _T("Text Doc"), _T("Text View"),
  94         CLASSINFO(TextEditDocument), CLASSINFO(TextEditView));
  95 #ifdef __WXMAC__
  96         wxFileName::MacRegisterDefaultTypeAndCreator( wxT("txt") , 'TEXT' , 'WXMA' ) ;
  97 #endif
  98     }
  99
 100     //// Create the main frame window
 101     frame = new MyFrame(m_docManager, (wxFrame *) NULL, wxID_ANY, _T("DocView Demo"), wxPoint(0, 0), wxSize(500, 400), wxDEFAULT_FRAME_STYLE);
 102
 103     //// Give it an icon (this is ignored in MDI mode: uses resources)
 104 #ifdef __WXMSW__
 105     frame->SetIcon(wxIcon(_T("doc_icn")));
 106 #endif
 107
 108     //// Make a menubar
 109     wxMenu *file_menu = new wxMenu;
 110     wxMenu *edit_menu = (wxMenu *) NULL;
 111
 112     file_menu->Append(wxID_NEW, _T("&New..."));
 113     file_menu->Append(wxID_OPEN, _T("&Open..."));
 114
 115     if (singleWindowMode)
 116     {
 117         file_menu->Append(wxID_CLOSE, _T("&Close"));
 118         file_menu->Append(wxID_SAVE, _T("&Save"));
 119         file_menu->Append(wxID_SAVEAS, _T("Save &As..."));
 120         file_menu->AppendSeparator();
 121         file_menu->Append(wxID_PRINT, _T("&Print..."));
 122         file_menu->Append(wxID_PRINT_SETUP, _T("Print &Setup..."));
 123         file_menu->Append(wxID_PREVIEW, _T("Print Pre&view"));
 124
 125         edit_menu = new wxMenu;
 126         edit_menu->Append(wxID_UNDO, _T("&Undo"));
 127         edit_menu->Append(wxID_REDO, _T("&Redo"));
 128         edit_menu->AppendSeparator();
 129         edit_menu->Append(DOCVIEW_CUT, _T("&Cut last segment"));
 130
 131         frame->editMenu = edit_menu;
 132     }
 133
 134     file_menu->AppendSeparator();
 135     file_menu->Append(wxID_EXIT, _T("E&xit"));
 136
 137     // A nice touch: a history of files visited. Use this menu.
 138     m_docManager->FileHistoryUseMenu(file_menu);
 139
 140     wxMenu *help_menu = new wxMenu;
 141     help_menu->Append(DOCVIEW_ABOUT, _T("&About"));
 142
 143     wxMenuBar *menu_bar = new wxMenuBar;
 144
 145     menu_bar->Append(file_menu, _T("&File"));
 146     if (edit_menu)
 147         menu_bar->Append(edit_menu, _T("&Edit"));
 148     menu_bar->Append(help_menu, _T("&Help"));
 149
 150     if (singleWindowMode)
 151         frame->canvas = frame->CreateCanvas((wxView *) NULL, frame);
 152
 153     //// Associate the menu bar with the frame
 154     frame->SetMenuBar(menu_bar);
 155
 156     frame->Centre(wxBOTH);
 157     frame->Show(true);
 158
 159     SetTopWindow(frame);
 160     return true;
 161 }
 162
 163 int MyApp::OnExit(void)
 164 {
 165     delete m_docManager;
 166     return 0;
 167 }
 168
 169 /*
 170 * Centralised code for creating a document frame.
 171 * Called from view.cpp, when a view is created, but not used at all
 172 * in 'single window' mode.
 173 */
 174
 175 wxFrame *MyApp::CreateChildFrame(wxDocument *doc, wxView *view, bool isCanvas)
 176 {
 177     //// Make a child frame
 178     wxDocChildFrame *subframe = new wxDocChildFrame(doc, view, GetMainFrame(), wxID_ANY, _T("Child Frame"),
 179         wxPoint(10, 10), wxSize(300, 300), wxDEFAULT_FRAME_STYLE);
 180
 181 #ifdef __WXMSW__
 182     subframe->SetIcon(wxString(isCanvas ? _T("chrt_icn") : _T("notepad_icn")));
 183 #endif
 184
 185     //// Make a menubar
 186     wxMenu *file_menu = new wxMenu;
 187
 188     file_menu->Append(wxID_NEW, _T("&New..."));
 189     file_menu->Append(wxID_OPEN, _T("&Open..."));
 190     file_menu->Append(wxID_CLOSE, _T("&Close"));
 191     file_menu->Append(wxID_SAVE, _T("&Save"));
 192     file_menu->Append(wxID_SAVEAS, _T("Save &As..."));
 193
 194     if (isCanvas)
 195     {
 196         file_menu->AppendSeparator();
 197         file_menu->Append(wxID_PRINT, _T("&Print..."));
 198         file_menu->Append(wxID_PRINT_SETUP, _T("Print &Setup..."));
 199         file_menu->Append(wxID_PREVIEW, _T("Print Pre&view"));
 200     }
 201
 202     wxMenu *edit_menu = (wxMenu *) NULL;
 203
 204     if (isCanvas)
 205     {
 206         edit_menu = new wxMenu;
 207         edit_menu->Append(wxID_UNDO, _T("&Undo"));
 208         edit_menu->Append(wxID_REDO, _T("&Redo"));
 209         edit_menu->AppendSeparator();
 210         edit_menu->Append(DOCVIEW_CUT, _T("&Cut last segment"));
 211
 212         doc->GetCommandProcessor()->SetEditMenu(edit_menu);
 213     }
 214
 215     wxMenu *help_menu = new wxMenu;
 216     help_menu->Append(DOCVIEW_ABOUT, _T("&About"));
 217
 218     wxMenuBar *menu_bar = new wxMenuBar;
 219
 220     menu_bar->Append(file_menu, _T("&File"));
 221     if (isCanvas)
 222         menu_bar->Append(edit_menu, _T("&Edit"));
 223     menu_bar->Append(help_menu, _T("&Help"));
 224
 225     //// Associate the menu bar with the frame
 226     subframe->SetMenuBar(menu_bar);
 227
 228     subframe->Centre(wxBOTH);
 229
 230     return subframe;
 231 }
 232
 233 /*
 234 * This is the top-level window of the application.
 235 */
 236
 237 IMPLEMENT_CLASS(MyFrame, wxDocParentFrame)
 238 BEGIN_EVENT_TABLE(MyFrame, wxDocParentFrame)
 239     EVT_MENU(DOCVIEW_ABOUT, MyFrame::OnAbout)
 240 END_EVENT_TABLE()
 241
 242 MyFrame::MyFrame(wxDocManager *manager, wxFrame *frame, wxWindowID id, const wxString& title,
 243                  const wxPoint& pos, const wxSize& size, const long type):
 244 wxDocParentFrame(manager, frame, id, title, pos, size, type)
 245 {
 246     // This pointer only needed if in single window mode
 247     canvas = (MyCanvas *) NULL;
 248     editMenu = (wxMenu *) NULL;
 249 }
 250
 251 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 252 {
 253     (void)wxMessageBox(_T("DocView Demo\nAuthor: Julian Smart\nUsage: docview.exe [-single]"), _T("About DocView"));
 254 }
 255
 256 // Creates a canvas. Called either from view.cc when a new drawing
 257 // view is created, or in OnInit as a child of the main window,
 258 // if in 'single window' mode.
 259 MyCanvas *MyFrame::CreateCanvas(wxView *view, wxFrame *parent)
 260 {
 261     int width, height;
 262     parent->GetClientSize(&width, &height);
 263
 264     // Non-retained canvas
 265     MyCanvas *canvas = new MyCanvas(view, parent, wxPoint(0, 0), wxSize(width, height), 0);
 266     canvas->SetCursor(wxCursor(wxCURSOR_PENCIL));
 267
 268     // Give it scrollbars
 269     canvas->SetScrollbars(20, 20, 50, 50);
 270     canvas->SetBackgroundColour(*wxWHITE);
 271     canvas->ClearBackground();
 272
 273     return canvas;
 274 }
 275
 276 MyFrame *GetMainFrame(void)
 277 {
 278     return frame;
 279 }
 280