samples/mdi/mdi.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        mdi.cpp
   3 // Purpose:     MDI sample
   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 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/wx.h"
  29     #include "wx/mdi.h"
  30 #endif
  31
  32 #include <wx/toolbar.h>
  33
  34 #if defined(__WXGTK__) || defined(__WXMOTIF__)
  35     #include "mondrian.xpm"
  36     #include "bitmaps/new.xpm"
  37     #include "bitmaps/open.xpm"
  38     #include "bitmaps/save.xpm"
  39     #include "bitmaps/copy.xpm"
  40     #include "bitmaps/cut.xpm"
  41     #include "bitmaps/paste.xpm"
  42     #include "bitmaps/print.xpm"
  43     #include "bitmaps/help.xpm"
  44 #endif
  45
  46 #include "mdi.h"
  47
  48 IMPLEMENT_APP(MyApp)
  49
  50 // ---------------------------------------------------------------------------
  51 // global variables
  52 // ---------------------------------------------------------------------------
  53
  54 MyFrame *frame = (MyFrame *) NULL;
  55 wxList my_children;
  56
  57 // For drawing lines in a canvas
  58 static long xpos = -1;
  59 static long ypos = -1;
  60
  61 static int gs_nFrames = 0;
  62
  63 // ---------------------------------------------------------------------------
  64 // event tables
  65 // ---------------------------------------------------------------------------
  66
  67 BEGIN_EVENT_TABLE(MyFrame, wxMDIParentFrame)
  68     EVT_MENU(MDI_ABOUT, MyFrame::OnAbout)
  69     EVT_MENU(MDI_NEW_WINDOW, MyFrame::OnNewWindow)
  70     EVT_MENU(MDI_QUIT, MyFrame::OnQuit)
  71
  72     EVT_CLOSE(MyFrame::OnClose)
  73
  74     EVT_SIZE(MyFrame::OnSize)
  75 END_EVENT_TABLE()
  76
  77 // Note that MDI_NEW_WINDOW and MDI_ABOUT commands get passed
  78 // to the parent window for processing, so no need to
  79 // duplicate event handlers here.
  80 BEGIN_EVENT_TABLE(MyChild, wxMDIChildFrame)
  81     EVT_MENU(MDI_CHILD_QUIT, MyChild::OnQuit)
  82     EVT_MENU(MDI_REFRESH, MyChild::OnRefresh)
  83
  84     EVT_CLOSE(MyChild::OnClose)
  85 END_EVENT_TABLE()
  86
  87 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
  88     EVT_MOUSE_EVENTS(MyCanvas::OnEvent)
  89 END_EVENT_TABLE()
  90
  91 // ===========================================================================
  92 // implementation
  93 // ===========================================================================
  94
  95 // ---------------------------------------------------------------------------
  96 // MyApp
  97 // ---------------------------------------------------------------------------
  98
  99 // Initialise this in OnInit, not statically
 100 bool MyApp::OnInit()
 101 {
 102     // Create the main frame window
 103
 104     frame = new MyFrame((wxFrame *)NULL, -1, "MDI Demo",
 105                         wxPoint(-1, -1), wxSize(500, 400),
 106                         wxDEFAULT_FRAME_STYLE | wxHSCROLL | wxVSCROLL);
 107 #ifdef __WXMSW__
 108 #if 0
 109     // Experimental: change the window menu
 110     wxMenu* windowMenu = new wxMenu;
 111     windowMenu->Append(5000, "My menu item!");
 112     frame->SetWindowMenu(windowMenu);
 113 #endif
 114 #endif
 115
 116     // Give it an icon
 117 #ifdef __WXMSW__
 118     frame->SetIcon(wxIcon("mdi_icn"));
 119 #else
 120     frame->SetIcon(wxIcon( mondrian_xpm ));
 121 #endif
 122
 123     // Make a menubar
 124     wxMenu *file_menu = new wxMenu;
 125
 126     file_menu->Append(MDI_NEW_WINDOW, "&New window", "Create a new child window");
 127     file_menu->Append(MDI_QUIT, "&Exit", "Quit the program");
 128
 129     wxMenu *help_menu = new wxMenu;
 130     help_menu->Append(MDI_ABOUT, "&About");
 131
 132     wxMenuBar *menu_bar = new wxMenuBar;
 133
 134     menu_bar->Append(file_menu, "&File");
 135     menu_bar->Append(help_menu, "&Help");
 136
 137     // Associate the menu bar with the frame
 138     frame->SetMenuBar(menu_bar);
 139
 140     frame->CreateStatusBar();
 141
 142     frame->Show(TRUE);
 143
 144     SetTopWindow(frame);
 145
 146     return TRUE;
 147 }
 148
 149 // ---------------------------------------------------------------------------
 150 // MyFrame
 151 // ---------------------------------------------------------------------------
 152
 153 // Define my frame constructor
 154 MyFrame::MyFrame(wxWindow *parent,
 155                  const wxWindowID id,
 156                  const wxString& title,
 157                  const wxPoint& pos,
 158                  const wxSize& size,
 159                  const long style)
 160        : wxMDIParentFrame(parent, id, title, pos, size, style)
 161 {
 162     textWindow = new wxTextCtrl(this, -1, "A help window",
 163                                 wxDefaultPosition, wxDefaultSize,
 164                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 165
 166     CreateToolBar(wxNO_BORDER | wxTB_FLAT | wxTB_HORIZONTAL);
 167     InitToolBar(GetToolBar());
 168
 169     // Accelerators
 170     wxAcceleratorEntry entries[3];
 171     entries[0].Set(wxACCEL_CTRL, (int) 'N', MDI_NEW_WINDOW);
 172     entries[1].Set(wxACCEL_CTRL, (int) 'X', MDI_QUIT);
 173     entries[2].Set(wxACCEL_CTRL, (int) 'A', MDI_ABOUT);
 174     wxAcceleratorTable accel(3, entries);
 175     SetAcceleratorTable(accel);
 176 }
 177
 178 void MyFrame::OnClose(wxCloseEvent& event)
 179 {
 180     if ( event.CanVeto() && (gs_nFrames > 0) )
 181     {
 182         wxString msg;
 183         msg.Printf(_T("%d windows still open, close anyhow?"), gs_nFrames);
 184         if ( wxMessageBox(msg, "Please confirm",
 185                           wxICON_QUESTION | wxYES_NO) != wxYES )
 186         {
 187             event.Veto();
 188
 189             return;
 190         }
 191     }
 192
 193     event.Skip();
 194 }
 195
 196 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 197 {
 198     Close();
 199 }
 200
 201 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 202 {
 203     (void)wxMessageBox("wxWindows 2.0 MDI Demo\n"
 204                        "Author: Julian Smart (c) 1997\n"
 205                        "Usage: mdi.exe", "About MDI Demo");
 206 }
 207
 208 void MyFrame::OnNewWindow(wxCommandEvent& WXUNUSED(event) )
 209 {
 210     // Make another frame, containing a canvas
 211     MyChild *subframe = new MyChild(frame, "Canvas Frame",
 212                                     wxPoint(-1, -1), wxSize(-1, -1),
 213                                     wxDEFAULT_FRAME_STYLE);
 214
 215     wxString title;
 216     title.Printf(_T("Canvas Frame %d"), ++gs_nFrames);
 217
 218     subframe->SetTitle(title);
 219
 220     // Give it an icon
 221 #ifdef __WXMSW__
 222     subframe->SetIcon(wxIcon("chrt_icn"));
 223 #else
 224     subframe->SetIcon(wxIcon( mondrian_xpm ));
 225 #endif
 226
 227     // Make a menubar
 228     wxMenu *file_menu = new wxMenu;
 229
 230     file_menu->Append(MDI_NEW_WINDOW, "&New window");
 231     file_menu->Append(MDI_CHILD_QUIT, "&Close child", "Close this window");
 232     file_menu->Append(MDI_QUIT, "&Exit");
 233
 234     wxMenu *option_menu = new wxMenu;
 235
 236     // Dummy option
 237     option_menu->Append(MDI_REFRESH, "&Refresh picture");
 238
 239     wxMenu *help_menu = new wxMenu;
 240     help_menu->Append(MDI_ABOUT, "&About");
 241
 242     wxMenuBar *menu_bar = new wxMenuBar;
 243
 244     menu_bar->Append(file_menu, "&File");
 245     menu_bar->Append(option_menu, "&Options");
 246     menu_bar->Append(help_menu, "&Help");
 247
 248     // Associate the menu bar with the frame
 249     subframe->SetMenuBar(menu_bar);
 250
 251     int width, height;
 252     subframe->GetClientSize(&width, &height);
 253     MyCanvas *canvas = new MyCanvas(subframe, wxPoint(0, 0), wxSize(width, height));
 254     canvas->SetCursor(wxCursor(wxCURSOR_PENCIL));
 255     subframe->canvas = canvas;
 256
 257     // Give it scrollbars
 258     canvas->SetScrollbars(20, 20, 50, 50);
 259
 260     subframe->CreateStatusBar();
 261     subframe->SetStatusText(title);
 262
 263     subframe->Show(TRUE);
 264 }
 265
 266 void MyFrame::OnSize(wxSizeEvent& WXUNUSED(event))
 267 {
 268     int w, h;
 269     GetClientSize(&w, &h);
 270
 271     textWindow->SetSize(0, 0, 200, h);
 272     GetClientWindow()->SetSize(200, 0, w - 200, h);
 273 }
 274
 275 void MyFrame::InitToolBar(wxToolBar* toolBar)
 276 {
 277     wxBitmap* bitmaps[8];
 278
 279 #ifdef __WXMSW__
 280     bitmaps[0] = new wxBitmap("icon1", wxBITMAP_TYPE_RESOURCE);
 281     bitmaps[1] = new wxBitmap("icon2", wxBITMAP_TYPE_RESOURCE);
 282     bitmaps[2] = new wxBitmap("icon3", wxBITMAP_TYPE_RESOURCE);
 283     bitmaps[3] = new wxBitmap("icon4", wxBITMAP_TYPE_RESOURCE);
 284     bitmaps[4] = new wxBitmap("icon5", wxBITMAP_TYPE_RESOURCE);
 285     bitmaps[5] = new wxBitmap("icon6", wxBITMAP_TYPE_RESOURCE);
 286     bitmaps[6] = new wxBitmap("icon7", wxBITMAP_TYPE_RESOURCE);
 287     bitmaps[7] = new wxBitmap("icon8", wxBITMAP_TYPE_RESOURCE);
 288 #else
 289     bitmaps[0] = new wxBitmap( new_xpm );
 290     bitmaps[1] = new wxBitmap( open_xpm );
 291     bitmaps[2] = new wxBitmap( save_xpm );
 292     bitmaps[3] = new wxBitmap( copy_xpm );
 293     bitmaps[4] = new wxBitmap( cut_xpm );
 294     bitmaps[5] = new wxBitmap( paste_xpm );
 295     bitmaps[6] = new wxBitmap( print_xpm );
 296     bitmaps[7] = new wxBitmap( help_xpm );
 297 #endif
 298
 299 #ifdef __WXMSW__
 300     int width = 24;
 301 #else
 302     int width = 16;
 303 #endif
 304     int currentX = 5;
 305
 306     toolBar->AddTool( MDI_NEW_WINDOW, *(bitmaps[0]), wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "New file");
 307     currentX += width + 5;
 308     toolBar->AddTool(1, *bitmaps[1], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Open file");
 309     currentX += width + 5;
 310     toolBar->AddTool(2, *bitmaps[2], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Save file");
 311     currentX += width + 5;
 312     toolBar->AddSeparator();
 313     toolBar->AddTool(3, *bitmaps[3], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Copy");
 314     currentX += width + 5;
 315     toolBar->AddTool(4, *bitmaps[4], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Cut");
 316     currentX += width + 5;
 317     toolBar->AddTool(5, *bitmaps[5], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Paste");
 318     currentX += width + 5;
 319     toolBar->AddSeparator();
 320     toolBar->AddTool(6, *bitmaps[6], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, "Print");
 321     currentX += width + 5;
 322     toolBar->AddSeparator();
 323     toolBar->AddTool(7, *bitmaps[7], wxNullBitmap, TRUE, currentX, -1, (wxObject *) NULL, "Help");
 324
 325     toolBar->Realize();
 326
 327     int i;
 328     for (i = 0; i < 8; i++)
 329         delete bitmaps[i];
 330 }
 331
 332 // ---------------------------------------------------------------------------
 333 // MyCanvas
 334 // ---------------------------------------------------------------------------
 335
 336 // Define a constructor for my canvas
 337 MyCanvas::MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size)
 338         : wxScrolledWindow(parent, -1, pos, size,
 339                            wxSUNKEN_BORDER|wxVSCROLL|wxHSCROLL)
 340 {
 341     SetBackgroundColour(wxColour("WHITE"));
 342
 343     m_dirty = FALSE;
 344 }
 345
 346 // Define the repainting behaviour
 347 void MyCanvas::OnDraw(wxDC& dc)
 348 {
 349     dc.SetFont(*wxSWISS_FONT);
 350     dc.SetPen(*wxGREEN_PEN);
 351     dc.DrawLine(0, 0, 200, 200);
 352     dc.DrawLine(200, 0, 0, 200);
 353
 354     dc.SetBrush(*wxCYAN_BRUSH);
 355     dc.SetPen(*wxRED_PEN);
 356     dc.DrawRectangle(100, 100, 100, 50);
 357     dc.DrawRoundedRectangle(150, 150, 100, 50, 20);
 358
 359     dc.DrawEllipse(250, 250, 100, 50);
 360     dc.DrawSpline(50, 200, 50, 100, 200, 10);
 361     dc.DrawLine(50, 230, 200, 230);
 362     dc.DrawText("This is a test string", 50, 230);
 363
 364     wxPoint points[3];
 365     points[0].x = 200; points[0].y = 300;
 366     points[1].x = 100; points[1].y = 400;
 367     points[2].x = 300; points[2].y = 400;
 368
 369     dc.DrawPolygon(3, points);
 370 }
 371
 372 // This implements a tiny doodling program! Drag the mouse using the left
 373 // button.
 374 void MyCanvas::OnEvent(wxMouseEvent& event)
 375 {
 376     wxClientDC dc(this);
 377     PrepareDC(dc);
 378
 379     wxPoint pt(event.GetLogicalPosition(dc));
 380
 381     if (xpos > -1 && ypos > -1 && event.Dragging())
 382     {
 383         dc.SetPen(*wxBLACK_PEN);
 384         dc.DrawLine(xpos, ypos, pt.x, pt.y);
 385
 386         m_dirty = TRUE;
 387     }
 388
 389     xpos = pt.x;
 390     ypos = pt.y;
 391 }
 392
 393 // ---------------------------------------------------------------------------
 394 // MyChild
 395 // ---------------------------------------------------------------------------
 396
 397 MyChild::MyChild(wxMDIParentFrame *parent, const wxString& title,
 398                  const wxPoint& pos, const wxSize& size,
 399                  const long style)
 400        : wxMDIChildFrame(parent, -1, title, pos, size, style)
 401 {
 402     canvas = (MyCanvas *) NULL;
 403     my_children.Append(this);
 404 }
 405
 406 MyChild::~MyChild()
 407 {
 408     my_children.DeleteObject(this);
 409 }
 410
 411 void MyChild::OnQuit(wxCommandEvent& WXUNUSED(event))
 412 {
 413     Close(TRUE);
 414 }
 415
 416 void MyChild::OnRefresh(wxCommandEvent& event)
 417 {
 418     Refresh();
 419 }
 420
 421 void MyChild::OnActivate(wxActivateEvent& event)
 422 {
 423     if ( event.GetActive() && canvas )
 424         canvas->SetFocus();
 425 }
 426
 427 void MyChild::OnClose(wxCloseEvent& event)
 428 {
 429     if ( canvas && canvas->IsDirty() )
 430     {
 431         if ( wxMessageBox("Really close?", "Please confirm",
 432                           wxICON_QUESTION | wxYES_NO) != wxYES )
 433         {
 434             event.Veto();
 435
 436             return;
 437         }
 438     }
 439
 440     gs_nFrames--;
 441
 442     event.Skip();
 443 }
 444
 445