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