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