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 #ifdef __GNUG__
  13 // #pragma implementation "docview.h"
  14 #endif
  15
  16 /*
  17 * Purpose:  Document/view architecture demo for wxWidgets class library
  18 *           Run with no arguments for multiple top-level windows, -single
  19 *           for a single window.
  20 */
  21
  22
  23 // For compilers that support precompilation, includes "wx/wx.h".
  24 #include "wx/wxprec.h"
  25
  26 #ifdef __BORLANDC__
  27 #pragma hdrstop
  28 #endif
  29
  30 #ifndef WX_PRECOMP
  31 #include "wx/wx.h"
  32 #endif
  33
  34 #if !wxUSE_DOC_VIEW_ARCHITECTURE
  35 #error You must set wxUSE_DOC_VIEW_ARCHITECTURE to 1 in setup.h!
  36 #endif
  37
  38 #include "wx/docview.h"
  39
  40 #include "docview.h"
  41 #include "doc.h"
  42 #include "view.h"
  43 #ifdef __WXMAC__
  44 #include "wx/filename.h"
  45 #endif
  46
  47 MyFrame *frame = (MyFrame *) NULL;
  48
  49 // In single window mode, don't have any child windows; use
  50 // main window.
  51 bool singleWindowMode = false;
  52
  53 IMPLEMENT_APP(MyApp)
  54
  55 MyApp::MyApp(void)
  56 {
  57     m_docManager = (wxDocManager *) NULL;
  58 }
  59
  60 bool MyApp::OnInit(void)
  61 {
  62     //// Find out if we're:
  63     ////  multiple window: multiple windows, each view in a separate frame
  64     ////  single window:   one view (within the main frame) and one document at a time, as in Windows Write.
  65     ////                   In single window mode, we only allow one document type
  66     if (argc > 1)
  67     {
  68         if (wxStrcmp(argv[1], _T("-single")) == 0)
  69         {
  70             singleWindowMode = true;
  71         }
  72     }
  73
  74     //// Create a document manager
  75     m_docManager = new wxDocManager;
  76
  77     //// Create a template relating drawing documents to their views
  78     (void) new wxDocTemplate(m_docManager, _T("Drawing"), _T("*.drw"), _T(""), _T("drw"), _T("Drawing Doc"), _T("Drawing View"),
  79         CLASSINFO(DrawingDocument), CLASSINFO(DrawingView));
  80 #ifdef __WXMAC__
  81     wxFileName::MacRegisterDefaultTypeAndCreator( wxT("drw") , 'WXMB' , 'WXMA' ) ;
  82 #endif
  83
  84     if (singleWindowMode)
  85     {
  86         // If we've only got one window, we only get to edit
  87         // one document at a time. Therefore no text editing, just
  88         // doodling.
  89         m_docManager->SetMaxDocsOpen(1);
  90     }
  91     else
  92     {
  93         //// Create a template relating text documents to their views
  94         (void) new wxDocTemplate(m_docManager, _T("Text"), _T("*.txt;*.text"), _T(""), _T("txt;text"), _T("Text Doc"), _T("Text View"),
  95         CLASSINFO(TextEditDocument), CLASSINFO(TextEditView));
  96 #ifdef __WXMAC__
  97         wxFileName::MacRegisterDefaultTypeAndCreator( wxT("txt") , 'TEXT' , 'WXMA' ) ;
  98 #endif
  99     }
 100
 101     //// Create the main frame window
 102     frame = new MyFrame(m_docManager, (wxFrame *) NULL, wxID_ANY, _T("DocView Demo"), wxPoint(0, 0), wxSize(500, 400), wxDEFAULT_FRAME_STYLE);
 103
 104     //// Give it an icon (this is ignored in MDI mode: uses resources)
 105 #ifdef __WXMSW__
 106     frame->SetIcon(wxIcon(_T("doc_icn")));
 107 #endif
 108
 109     //// Make a menubar
 110     wxMenu *file_menu = new wxMenu;
 111     wxMenu *edit_menu = (wxMenu *) NULL;
 112
 113     file_menu->Append(wxID_NEW, _T("&New..."));
 114     file_menu->Append(wxID_OPEN, _T("&Open..."));
 115
 116     if (singleWindowMode)
 117     {
 118         file_menu->Append(wxID_CLOSE, _T("&Close"));
 119         file_menu->Append(wxID_SAVE, _T("&Save"));
 120         file_menu->Append(wxID_SAVEAS, _T("Save &As..."));
 121         file_menu->AppendSeparator();
 122         file_menu->Append(wxID_PRINT, _T("&Print..."));
 123         file_menu->Append(wxID_PRINT_SETUP, _T("Print &Setup..."));
 124         file_menu->Append(wxID_PREVIEW, _T("Print Pre&view"));
 125
 126         edit_menu = new wxMenu;
 127         edit_menu->Append(wxID_UNDO, _T("&Undo"));
 128         edit_menu->Append(wxID_REDO, _T("&Redo"));
 129         edit_menu->AppendSeparator();
 130         edit_menu->Append(DOCVIEW_CUT, _T("&Cut last segment"));
 131
 132         frame->editMenu = edit_menu;
 133     }
 134
 135     file_menu->AppendSeparator();
 136     file_menu->Append(wxID_EXIT, _T("E&xit"));
 137
 138     // A nice touch: a history of files visited. Use this menu.
 139     m_docManager->FileHistoryUseMenu(file_menu);
 140
 141     wxMenu *help_menu = new wxMenu;
 142     help_menu->Append(DOCVIEW_ABOUT, _T("&About"));
 143
 144     wxMenuBar *menu_bar = new wxMenuBar;
 145
 146     menu_bar->Append(file_menu, _T("&File"));
 147     if (edit_menu)
 148         menu_bar->Append(edit_menu, _T("&Edit"));
 149     menu_bar->Append(help_menu, _T("&Help"));
 150
 151     if (singleWindowMode)
 152         frame->canvas = frame->CreateCanvas((wxView *) NULL, frame);
 153
 154     //// Associate the menu bar with the frame
 155     frame->SetMenuBar(menu_bar);
 156
 157     frame->Centre(wxBOTH);
 158     frame->Show(true);
 159
 160     SetTopWindow(frame);
 161     return true;
 162 }
 163
 164 int MyApp::OnExit(void)
 165 {
 166     delete m_docManager;
 167     return 0;
 168 }
 169
 170 /*
 171 * Centralised code for creating a document frame.
 172 * Called from view.cpp, when a view is created, but not used at all
 173 * in 'single window' mode.
 174 */
 175
 176 wxFrame *MyApp::CreateChildFrame(wxDocument *doc, wxView *view, bool isCanvas)
 177 {
 178     //// Make a child frame
 179     wxDocChildFrame *subframe = new wxDocChildFrame(doc, view, GetMainFrame(), wxID_ANY, _T("Child Frame"),
 180         wxPoint(10, 10), wxSize(300, 300), wxDEFAULT_FRAME_STYLE);
 181
 182 #ifdef __WXMSW__
 183     subframe->SetIcon(wxString(isCanvas ? _T("chrt_icn") : _T("notepad_icn")));
 184 #endif
 185
 186     //// Make a menubar
 187     wxMenu *file_menu = new wxMenu;
 188
 189     file_menu->Append(wxID_NEW, _T("&New..."));
 190     file_menu->Append(wxID_OPEN, _T("&Open..."));
 191     file_menu->Append(wxID_CLOSE, _T("&Close"));
 192     file_menu->Append(wxID_SAVE, _T("&Save"));
 193     file_menu->Append(wxID_SAVEAS, _T("Save &As..."));
 194
 195     if (isCanvas)
 196     {
 197         file_menu->AppendSeparator();
 198         file_menu->Append(wxID_PRINT, _T("&Print..."));
 199         file_menu->Append(wxID_PRINT_SETUP, _T("Print &Setup..."));
 200         file_menu->Append(wxID_PREVIEW, _T("Print Pre&view"));
 201     }
 202
 203     wxMenu *edit_menu = (wxMenu *) NULL;
 204
 205     if (isCanvas)
 206     {
 207         edit_menu = new wxMenu;
 208         edit_menu->Append(wxID_UNDO, _T("&Undo"));
 209         edit_menu->Append(wxID_REDO, _T("&Redo"));
 210         edit_menu->AppendSeparator();
 211         edit_menu->Append(DOCVIEW_CUT, _T("&Cut last segment"));
 212
 213         doc->GetCommandProcessor()->SetEditMenu(edit_menu);
 214     }
 215
 216     wxMenu *help_menu = new wxMenu;
 217     help_menu->Append(DOCVIEW_ABOUT, _T("&About"));
 218
 219     wxMenuBar *menu_bar = new wxMenuBar;
 220
 221     menu_bar->Append(file_menu, _T("&File"));
 222     if (isCanvas)
 223         menu_bar->Append(edit_menu, _T("&Edit"));
 224     menu_bar->Append(help_menu, _T("&Help"));
 225
 226     //// Associate the menu bar with the frame
 227     subframe->SetMenuBar(menu_bar);
 228
 229     subframe->Centre(wxBOTH);
 230
 231     return subframe;
 232 }
 233
 234 /*
 235 * This is the top-level window of the application.
 236 */
 237
 238 IMPLEMENT_CLASS(MyFrame, wxDocParentFrame)
 239 BEGIN_EVENT_TABLE(MyFrame, wxDocParentFrame)
 240     EVT_MENU(DOCVIEW_ABOUT, MyFrame::OnAbout)
 241 END_EVENT_TABLE()
 242
 243 MyFrame::MyFrame(wxDocManager *manager, wxFrame *frame, wxWindowID id, const wxString& title,
 244                  const wxPoint& pos, const wxSize& size, const long type):
 245 wxDocParentFrame(manager, frame, id, title, pos, size, type)
 246 {
 247     // This pointer only needed if in single window mode
 248     canvas = (MyCanvas *) NULL;
 249     editMenu = (wxMenu *) NULL;
 250 }
 251
 252 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 253 {
 254     (void)wxMessageBox(_T("DocView Demo\nAuthor: Julian Smart\nUsage: docview.exe [-single]"), _T("About DocView"));
 255 }
 256
 257 // Creates a canvas. Called either from view.cc when a new drawing
 258 // view is created, or in OnInit as a child of the main window,
 259 // if in 'single window' mode.
 260 MyCanvas *MyFrame::CreateCanvas(wxView *view, wxFrame *parent)
 261 {
 262     int width, height;
 263     parent->GetClientSize(&width, &height);
 264
 265     // Non-retained canvas
 266     MyCanvas *canvas = new MyCanvas(view, parent, wxPoint(0, 0), wxSize(width, height), 0);
 267     canvas->SetCursor(wxCursor(wxCURSOR_PENCIL));
 268
 269     // Give it scrollbars
 270     canvas->SetScrollbars(20, 20, 50, 50);
 271     canvas->SetBackgroundColour(*wxWHITE);
 272     canvas->ClearBackground();
 273
 274     return canvas;
 275 }
 276
 277 MyFrame *GetMainFrame(void)
 278 {
 279     return frame;
 280 }
 281