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