src/motif/mdi.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        mdi.cpp
   3 // Purpose:     MDI classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "mdi.h"
  14 #endif
  15
  16 #include "wx/mdi.h"
  17 #include "wx/menu.h"
  18 #include "wx/settings.h"
  19
  20 #include <Xm/Xm.h>
  21 #include <Xm/BulletinB.h>
  22 #include <Xm/Form.h>
  23 #include <Xm/MainW.h>
  24 #include <Xm/RowColumn.h>
  25 #include <Xm/CascadeBG.h>
  26 #include <Xm/Text.h>
  27 #include <Xm/PushBG.h>
  28 #include <Xm/AtomMgr.h>
  29 #include <Xm/Protocols.h>
  30
  31 #include "wx/motif/private.h"
  32
  33 extern wxList wxModelessWindows;
  34
  35 // Implemented in frame.cpp
  36 extern void wxFrameFocusProc(Widget workArea, XtPointer clientData,
  37                              XmAnyCallbackStruct *cbs);
  38
  39 #define wxID_NOTEBOOK_CLIENT_AREA wxID_HIGHEST + 100
  40
  41 #if !USE_SHARED_LIBRARY
  42 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame, wxFrame)
  43 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame, wxFrame)
  44 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxNotebook)
  45
  46 BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame)
  47     EVT_SIZE(wxMDIParentFrame::OnSize)
  48     EVT_ACTIVATE(wxMDIParentFrame::OnActivate)
  49     EVT_SYS_COLOUR_CHANGED(wxMDIParentFrame::OnSysColourChanged)
  50 END_EVENT_TABLE()
  51
  52 BEGIN_EVENT_TABLE(wxMDIClientWindow, wxNotebook)
  53     EVT_SCROLL(wxMDIClientWindow::OnScroll)
  54     EVT_NOTEBOOK_PAGE_CHANGED(wxID_NOTEBOOK_CLIENT_AREA, wxMDIClientWindow::OnPageChanged)
  55 END_EVENT_TABLE()
  56
  57 #endif // USE_SHARED_LIBRARY
  58
  59 // Parent frame
  60
  61 wxMDIParentFrame::wxMDIParentFrame()
  62 {
  63     m_clientWindow = (wxMDIClientWindow*) NULL;
  64     m_activeChild = (wxMDIChildFrame*) NULL;
  65     m_activeMenuBar = (wxMenuBar*) NULL;
  66 }
  67
  68 bool wxMDIParentFrame::Create(wxWindow *parent,
  69                               wxWindowID id,
  70                               const wxString& title,
  71                               const wxPoint& pos,
  72                               const wxSize& size,
  73                               long style,
  74                               const wxString& name)
  75 {
  76     m_clientWindow = (wxMDIClientWindow*) NULL;
  77     m_activeChild = (wxMDIChildFrame*) NULL;
  78     m_activeMenuBar = (wxMenuBar*) NULL;
  79
  80     bool success = wxFrame::Create(parent, id, title, pos, size, style, name);
  81     if (success)
  82     {
  83         // TODO: app cannot override OnCreateClient since
  84         // wxMDIParentFrame::OnCreateClient will still be called
  85         // (we're in the constructor). How to resolve?
  86
  87         m_clientWindow = OnCreateClient();
  88
  89         // Uses own style for client style
  90         m_clientWindow->CreateClient(this, GetWindowStyleFlag());
  91
  92         int w, h;
  93         GetClientSize(& w, & h);
  94         m_clientWindow->SetSize(0, 0, w, h);
  95         return TRUE;
  96     }
  97     else
  98         return FALSE;
  99 }
 100
 101 wxMDIParentFrame::~wxMDIParentFrame()
 102 {
 103     // Make sure we delete the client window last of all
 104     RemoveChild(m_clientWindow);
 105
 106     DestroyChildren();
 107
 108     delete m_clientWindow;
 109     m_clientWindow = NULL;
 110 }
 111
 112 void wxMDIParentFrame::SetMenuBar(wxMenuBar *menu_bar)
 113 {
 114     m_frameMenuBar = menu_bar;
 115
 116     SetChildMenuBar((wxMDIChildFrame*) NULL);
 117 }
 118
 119 void wxMDIParentFrame::OnSize(wxSizeEvent& event)
 120 {
 121 #if wxUSE_CONSTRAINTS
 122     if (GetAutoLayout())
 123         Layout();
 124 #endif
 125     int x = 0;
 126     int y = 0;
 127     int width, height;
 128     GetClientSize(&width, &height);
 129
 130     if ( GetClientWindow() )
 131         GetClientWindow()->SetSize(x, y, width, height);
 132 }
 133
 134 void wxMDIParentFrame::GetClientSize(int *width, int *height) const
 135 {
 136     wxFrame::GetClientSize(width, height);
 137 }
 138
 139 void wxMDIParentFrame::OnActivate(wxActivateEvent& event)
 140 {
 141     // Do nothing
 142 }
 143
 144 // Returns the active MDI child window
 145 wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 146 {
 147     return m_activeChild;
 148 }
 149
 150 // Create the client window class (don't Create the window,
 151 // just return a new class)
 152 wxMDIClientWindow *wxMDIParentFrame::OnCreateClient()
 153 {
 154     return new wxMDIClientWindow ;
 155 }
 156
 157 // Set the child's menu into the parent frame
 158 void wxMDIParentFrame::SetChildMenuBar(wxMDIChildFrame* child)
 159 {
 160     wxMenuBar* oldMenuBar = m_activeMenuBar;
 161
 162     if (child == (wxMDIChildFrame*) NULL)  // No child: use parent frame
 163     {
 164         if (GetMenuBar() && (GetMenuBar() != m_activeMenuBar))
 165         {
 166             //            if (m_activeMenuBar)
 167             //                m_activeMenuBar->DestroyMenuBar();
 168
 169             m_activeMenuBar = GetMenuBar();
 170             m_activeMenuBar->CreateMenuBar(this);
 171             /*
 172             if (oldMenuBar && XtIsManaged((Widget) oldMenuBar->GetMainWidget()))
 173             XtUnmanageChild((Widget) oldMenuBar->GetMainWidget());
 174             */
 175             if (oldMenuBar && oldMenuBar->GetMainWidget())
 176                 XtUnmapWidget((Widget) oldMenuBar->GetMainWidget());
 177
 178         }
 179     }
 180     else if (child->GetMenuBar() == (wxMenuBar*) NULL) // No child menu bar: use parent frame
 181     {
 182         if (GetMenuBar() && (GetMenuBar() != m_activeMenuBar))
 183         {
 184             //            if (m_activeMenuBar)
 185             //                m_activeMenuBar->DestroyMenuBar();
 186             m_activeMenuBar = GetMenuBar();
 187             m_activeMenuBar->CreateMenuBar(this);
 188             /*
 189             if (oldMenuBar && XtIsManaged((Widget) oldMenuBar->GetMainWidget()))
 190             XtUnmanageChild((Widget) oldMenuBar->GetMainWidget());
 191             */
 192             if (oldMenuBar && oldMenuBar->GetMainWidget())
 193                 XtUnmapWidget((Widget) oldMenuBar->GetMainWidget());
 194         }
 195     }
 196     else // The child has a menubar
 197     {
 198         if (child->GetMenuBar() != m_activeMenuBar)
 199         {
 200             //            if (m_activeMenuBar)
 201             //                m_activeMenuBar->DestroyMenuBar();
 202
 203             m_activeMenuBar = child->GetMenuBar();
 204             m_activeMenuBar->CreateMenuBar(this);
 205             /*
 206             if (oldMenuBar && XtIsManaged((Widget) oldMenuBar->GetMainWidget()))
 207             XtUnmanageChild((Widget) oldMenuBar->GetMainWidget());
 208             */
 209             if (oldMenuBar && oldMenuBar->GetMainWidget())
 210                 XtUnmapWidget((Widget) oldMenuBar->GetMainWidget());
 211         }
 212     }
 213 }
 214
 215 // Redirect events to active child first
 216 bool wxMDIParentFrame::ProcessEvent(wxEvent& event)
 217 {
 218     // Stops the same event being processed repeatedly
 219     static wxEventType inEvent = wxEVT_NULL;
 220     if (inEvent == event.GetEventType())
 221         return FALSE;
 222
 223     inEvent = event.GetEventType();
 224
 225     bool res = FALSE;
 226     if (m_activeChild && event.IsKindOf(CLASSINFO(wxCommandEvent)))
 227     {
 228         res = m_activeChild->GetEventHandler()->ProcessEvent(event);
 229     }
 230
 231     if (!res)
 232         res = GetEventHandler()->wxEvtHandler::ProcessEvent(event);
 233
 234     inEvent = wxEVT_NULL;
 235
 236     return res;
 237 }
 238
 239 void wxMDIParentFrame::DoSetSize(int x, int y,
 240                                  int width, int height,
 241                                  int sizeFlags)
 242 {
 243     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
 244 }
 245
 246 void wxMDIParentFrame::DoSetClientSize(int width, int height)
 247 {
 248     wxWindow::DoSetClientSize(width, height);
 249 }
 250
 251 // Responds to colour changes, and passes event on to children.
 252 void wxMDIParentFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 253 {
 254     // TODO
 255
 256     // Propagate the event to the non-top-level children
 257     wxFrame::OnSysColourChanged(event);
 258 }
 259
 260 // MDI operations
 261 void wxMDIParentFrame::Cascade()
 262 {
 263     // TODO
 264 }
 265
 266 void wxMDIParentFrame::Tile()
 267 {
 268     // TODO
 269 }
 270
 271 void wxMDIParentFrame::ArrangeIcons()
 272 {
 273     // TODO
 274 }
 275
 276 void wxMDIParentFrame::ActivateNext()
 277 {
 278     // TODO
 279 }
 280
 281 void wxMDIParentFrame::ActivatePrevious()
 282 {
 283     // TODO
 284 }
 285
 286 // Child frame
 287
 288 wxMDIChildFrame::wxMDIChildFrame()
 289 {
 290     m_mdiParentFrame = (wxMDIParentFrame*) NULL;
 291 }
 292
 293 bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
 294                              wxWindowID id,
 295                              const wxString& title,
 296                              const wxPoint& pos,
 297                              const wxSize& size,
 298                              long style,
 299                              const wxString& name)
 300 {
 301     SetName(name);
 302
 303     m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE);
 304     m_foregroundColour = *wxBLACK;
 305     m_font = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
 306
 307     if ( id > -1 )
 308         m_windowId = id;
 309     else
 310         m_windowId = (int)NewControlId();
 311
 312     wxMDIClientWindow* clientWindow = parent->GetClientWindow();
 313
 314     wxASSERT_MSG( (clientWindow != (wxWindow*) NULL), "Missing MDI client window.");
 315
 316     if (clientWindow) clientWindow->AddChild(this);
 317
 318     SetMDIParentFrame(parent);
 319
 320     int width = size.x;
 321     int height = size.y;
 322     if (width == -1)
 323         width = 200; // TODO: give reasonable default
 324     if (height == -1)
 325         height = 200; // TODO: give reasonable default
 326
 327     // We're deactivating the old child
 328     wxMDIChildFrame* oldActiveChild = parent->GetActiveChild();
 329     if (oldActiveChild)
 330     {
 331         wxActivateEvent event(wxEVT_ACTIVATE, FALSE, oldActiveChild->GetId());
 332         event.SetEventObject( oldActiveChild );
 333         oldActiveChild->GetEventHandler()->ProcessEvent(event);
 334     }
 335
 336     // This is the currently active child
 337     parent->SetActiveChild((wxMDIChildFrame*) this);
 338
 339     // This time we'll try a bog-standard bulletin board for
 340     // the 'frame'. A main window doesn't seem to work.
 341
 342     m_mainWidget = (WXWidget) XtVaCreateWidget("client",
 343         xmBulletinBoardWidgetClass, (Widget) clientWindow->GetTopWidget(),
 344         XmNmarginWidth, 0,
 345         XmNmarginHeight, 0,
 346         /*
 347         XmNrightAttachment, XmATTACH_FORM,
 348         XmNleftAttachment, XmATTACH_FORM,
 349         XmNtopAttachment, XmATTACH_FORM,
 350         XmNbottomAttachment, XmATTACH_FORM,
 351         */
 352         XmNresizePolicy, XmRESIZE_NONE,
 353         NULL);
 354
 355     XtAddEventHandler((Widget) m_mainWidget, ExposureMask,FALSE,
 356         wxUniversalRepaintProc, (XtPointer) this);
 357
 358     SetCanAddEventHandler(TRUE);
 359     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
 360
 361     ChangeBackgroundColour();
 362
 363     XtManageChild((Widget) m_mainWidget);
 364
 365     SetTitle(title);
 366
 367     clientWindow->AddPage(this, title, TRUE);
 368     clientWindow->Refresh();
 369
 370     // Positions the toolbar and status bar -- but we don't have any.
 371     //    PreResize();
 372
 373     wxModelessWindows.Append(this);
 374     return TRUE;
 375 }
 376
 377
 378 wxMDIChildFrame::~wxMDIChildFrame()
 379 {
 380     if (m_mainWidget)
 381       XtRemoveEventHandler((Widget) m_mainWidget, ExposureMask,FALSE,
 382         wxUniversalRepaintProc, (XtPointer) this);
 383
 384     if (GetMDIParentFrame())
 385     {
 386         wxMDIParentFrame* parentFrame = GetMDIParentFrame();
 387
 388         if (parentFrame->GetActiveChild() == this)
 389             parentFrame->SetActiveChild((wxMDIChildFrame*) NULL);
 390         wxMDIClientWindow* clientWindow = parentFrame->GetClientWindow();
 391
 392         // Remove page if still there
 393         if (clientWindow->RemovePage(this))
 394             clientWindow->Refresh();
 395
 396         // Set the selection to the first remaining page
 397         if (clientWindow->GetPageCount() > 0)
 398         {
 399             wxMDIChildFrame* child = (wxMDIChildFrame*)  clientWindow->GetPage(0);
 400             parentFrame->SetActiveChild(child);
 401             parentFrame->SetChildMenuBar(child);
 402         }
 403         else
 404         {
 405             parentFrame->SetActiveChild((wxMDIChildFrame*) NULL);
 406             parentFrame->SetChildMenuBar((wxMDIChildFrame*) NULL);
 407         }
 408     }
 409 }
 410
 411 #if 0
 412 // Implementation: intercept and act upon raise and lower commands.
 413 void wxMDIChildFrame::OnRaise()
 414 {
 415     wxMDIParentFrame* parentFrame = (wxMDIParentFrame*) GetParent() ;
 416     wxMDIChildFrame* oldActiveChild = parentFrame->GetActiveChild();
 417     parentFrame->SetActiveChild(this);
 418
 419     if (oldActiveChild)
 420     {
 421         wxActivateEvent event(wxEVT_ACTIVATE, FALSE, oldActiveChild->GetId());
 422         event.SetEventObject( oldActiveChild );
 423         oldActiveChild->GetEventHandler()->ProcessEvent(event);
 424     }
 425
 426     wxActivateEvent event(wxEVT_ACTIVATE, TRUE, this->GetId());
 427     event.SetEventObject( this );
 428     this->GetEventHandler()->ProcessEvent(event);
 429 }
 430
 431 void wxMDIChildFrame::OnLower()
 432 {
 433     wxMDIParentFrame* parentFrame = (wxMDIParentFrame*) GetParent() ;
 434     wxMDIChildFrame* oldActiveChild = parentFrame->GetActiveChild();
 435
 436     if (oldActiveChild == this)
 437     {
 438         wxActivateEvent event(wxEVT_ACTIVATE, FALSE, oldActiveChild->GetId());
 439         event.SetEventObject( oldActiveChild );
 440         oldActiveChild->GetEventHandler()->ProcessEvent(event);
 441     }
 442     // TODO: unfortunately we don't now know which is the top-most child,
 443     // so make the active child NULL.
 444     parentFrame->SetActiveChild((wxMDIChildFrame*) NULL);
 445 }
 446 #endif
 447
 448 // Set the client size (i.e. leave the calculation of borders etc.
 449 // to wxWindows)
 450 void wxMDIChildFrame::DoSetClientSize(int width, int height)
 451 {
 452     wxWindow::DoSetClientSize(width, height);
 453 }
 454
 455 void wxMDIChildFrame::GetClientSize(int* width, int* height) const
 456 {
 457     wxWindow::GetSize(width, height);
 458 }
 459
 460 void wxMDIChildFrame::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 461 {
 462     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
 463 }
 464
 465 void wxMDIChildFrame::GetSize(int* width, int* height) const
 466 {
 467     wxWindow::GetSize(width, height);
 468 }
 469
 470 void wxMDIChildFrame::GetPosition(int *x, int *y) const
 471 {
 472     wxWindow::GetPosition(x, y);
 473 }
 474
 475 bool wxMDIChildFrame::Show(bool show)
 476 {
 477     m_visibleStatus = show; /* show-&-hide fix */
 478     return wxWindow::Show(show);
 479 }
 480
 481 void wxMDIChildFrame::SetMenuBar(wxMenuBar *menuBar)
 482 {
 483     // Don't create the underlying menubar yet; need to recreate
 484     // it every time the child is activated.
 485     m_frameMenuBar = menuBar;
 486
 487     // We make the assumption that if you're setting the menubar,
 488     // this is the currently active child.
 489     GetMDIParentFrame()->SetChildMenuBar(this);
 490 }
 491
 492 // Set icon
 493 void wxMDIChildFrame::SetIcon(const wxIcon& icon)
 494 {
 495     m_icon = icon;
 496     if (m_icon.Ok())
 497     {
 498         // Not appropriate since there are no icons in
 499         // a tabbed window
 500     }
 501 }
 502
 503 void wxMDIChildFrame::SetTitle(const wxString& title)
 504 {
 505     m_title = title;
 506     wxMDIClientWindow* clientWindow = GetMDIParentFrame()->GetClientWindow();
 507     int pageNo = clientWindow->FindPagePosition(this);
 508     if (pageNo > -1)
 509         clientWindow->SetPageText(pageNo, title);
 510 }
 511
 512 // MDI operations
 513 void wxMDIChildFrame::Maximize()
 514 {
 515     // TODO
 516 }
 517
 518 void wxMDIChildFrame::Iconize(bool iconize)
 519 {
 520     // TODO
 521 }
 522
 523 bool wxMDIChildFrame::IsIconized() const
 524 {
 525     return FALSE;
 526 }
 527
 528 // Is it maximized? Always maximized under Motif, using the
 529 // tabbed MDI implementation.
 530 bool wxMDIChildFrame::IsMaximized(void) const
 531 {
 532     return TRUE;
 533 }
 534
 535 void wxMDIChildFrame::Restore()
 536 {
 537     // TODO
 538 }
 539
 540 void wxMDIChildFrame::Activate()
 541 {
 542     // TODO
 543 }
 544
 545 void wxMDIChildFrame::CaptureMouse()
 546 {
 547     wxWindow::CaptureMouse();
 548 }
 549
 550 void wxMDIChildFrame::ReleaseMouse()
 551 {
 552     wxWindow::ReleaseMouse();
 553 }
 554
 555 void wxMDIChildFrame::Raise()
 556 {
 557     wxWindow::Raise();
 558 }
 559
 560 void wxMDIChildFrame::Lower(void)
 561 {
 562     wxWindow::Raise();
 563 }
 564
 565 void wxMDIChildFrame::SetSizeHints(int WXUNUSED(minW), int WXUNUSED(minH), int WXUNUSED(maxW), int WXUNUSED(maxH), int WXUNUSED(incW), int WXUNUSED(incH))
 566 {
 567 }
 568
 569 // Client window
 570
 571 wxMDIClientWindow::wxMDIClientWindow()
 572 {
 573 }
 574
 575 wxMDIClientWindow::~wxMDIClientWindow()
 576 {
 577     // By the time this destructor is called, the child frames will have been
 578     // deleted and removed from the notebook/client window.
 579     DestroyChildren();
 580
 581     m_mainWidget = (WXWidget) 0;
 582 }
 583
 584 bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style)
 585 {
 586     //    m_windowParent = parent;
 587     //    m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE);
 588
 589     bool success = wxNotebook::Create(parent, wxID_NOTEBOOK_CLIENT_AREA, wxPoint(0, 0), wxSize(100, 100), 0);
 590     if (success)
 591     {
 592         wxFont font(10, wxSWISS, wxNORMAL, wxNORMAL);
 593         wxFont selFont(10, wxSWISS, wxNORMAL, wxBOLD);
 594         GetTabView()->SetTabFont(font);
 595         GetTabView()->SetSelectedTabFont(selFont);
 596         GetTabView()->SetTabSize(120, 18);
 597         GetTabView()->SetTabSelectionHeight(20);
 598         return TRUE;
 599     }
 600     else
 601         return FALSE;
 602 }
 603
 604 void wxMDIClientWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 605 {
 606     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
 607 }
 608
 609 void wxMDIClientWindow::DoSetClientSize(int width, int height)
 610 {
 611     wxWindow::DoSetClientSize(width, height);
 612 }
 613
 614 void wxMDIClientWindow::GetClientSize(int *width, int *height) const
 615 {
 616     wxWindow::GetClientSize(width, height);
 617 }
 618
 619 void wxMDIClientWindow::GetSize(int *width, int *height) const
 620 {
 621     wxWindow::GetSize(width, height);
 622 }
 623
 624 void wxMDIClientWindow::GetPosition(int *x, int *y) const
 625 {
 626     wxWindow::GetPosition(x, y);
 627 }
 628
 629 // Explicitly call default scroll behaviour
 630 void wxMDIClientWindow::OnScroll(wxScrollEvent& event)
 631 {
 632     Default(); // Default processing
 633 }
 634
 635 void wxMDIClientWindow::OnPageChanged(wxNotebookEvent& event)
 636 {
 637     // Notify child that it has been activated
 638     if (event.GetOldSelection() != -1)
 639     {
 640         wxMDIChildFrame* oldChild = (wxMDIChildFrame*) GetPage(event.GetOldSelection());
 641         if (oldChild)
 642         {
 643             wxActivateEvent event(wxEVT_ACTIVATE, FALSE, oldChild->GetId());
 644             event.SetEventObject( oldChild );
 645             oldChild->GetEventHandler()->ProcessEvent(event);
 646         }
 647     }
 648     if (event.GetSelection() != -1)
 649     {
 650         wxMDIChildFrame* activeChild = (wxMDIChildFrame*) GetPage(event.GetSelection());
 651         if (activeChild)
 652         {
 653             wxActivateEvent event(wxEVT_ACTIVATE, TRUE, activeChild->GetId());
 654             event.SetEventObject( activeChild );
 655             activeChild->GetEventHandler()->ProcessEvent(event);
 656
 657             if (activeChild->GetMDIParentFrame())
 658             {
 659                 activeChild->GetMDIParentFrame()->SetActiveChild(activeChild);
 660                 activeChild->GetMDIParentFrame()->SetChildMenuBar(activeChild);
 661             }
 662         }
 663     }
 664     event.Skip();
 665 }