src/cocoa/window.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/cocoa/window.mm
   3 // Purpose:     wxWindowCocoa
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2002/12/26
   7 // RCS-ID:      $Id:
   8 // Copyright:   (c) 2002 David Elliott
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/window.h"
  13 #include "wx/log.h"
  14
  15 #include "wx/cocoa/autorelease.h"
  16
  17 #import <Appkit/NSView.h>
  18 #import <AppKit/NSEvent.h>
  19
  20 // ========================================================================
  21 // wxWindowCocoaHider
  22 // ========================================================================
  23 class wxWindowCocoaHider: protected wxCocoaNSView
  24 {
  25     DECLARE_NO_COPY_CLASS(wxWindowCocoaHider)
  26 public:
  27     wxWindowCocoaHider(wxWindow *owner);
  28     virtual ~wxWindowCocoaHider();
  29     inline WX_NSView GetNSView() { return m_dummyNSView; }
  30 protected:
  31     wxWindowCocoa *m_owner;
  32     WX_NSView m_dummyNSView;
  33     virtual void Cocoa_FrameChanged(void);
  34 private:
  35     wxWindowCocoaHider();
  36 };
  37
  38 // ========================================================================
  39 // wxWindowCocoaHider
  40 // ========================================================================
  41 wxWindowCocoaHider::wxWindowCocoaHider(wxWindow *owner)
  42 :   m_owner(owner)
  43 {
  44     wxASSERT(owner);
  45     wxASSERT(owner->GetNSViewForHiding());
  46     m_dummyNSView = [[NSView alloc]
  47         initWithFrame:[owner->GetNSViewForHiding() frame]];
  48     AssociateNSView(m_dummyNSView);
  49 }
  50
  51 wxWindowCocoaHider::~wxWindowCocoaHider()
  52 {
  53     DisassociateNSView(m_dummyNSView);
  54     [m_dummyNSView release];
  55 }
  56
  57 void wxWindowCocoaHider::Cocoa_FrameChanged(void)
  58 {
  59     // Keep the real window in synch with the dummy
  60     wxASSERT(m_dummyNSView);
  61     [m_owner->GetNSViewForHiding() setFrame:[m_dummyNSView frame]];
  62 }
  63
  64 // ========================================================================
  65 // wxWindowCocoa
  66 // ========================================================================
  67 // normally the base classes aren't included, but wxWindow is special
  68 #ifdef __WXUNIVERSAL__
  69 IMPLEMENT_ABSTRACT_CLASS(wxWindowCocoa, wxWindowBase)
  70 #else
  71 IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
  72 #endif
  73
  74 BEGIN_EVENT_TABLE(wxWindowCocoa, wxWindowBase)
  75 END_EVENT_TABLE()
  76
  77 wxWindow *wxWindowCocoa::sm_capturedWindow = NULL;
  78
  79 // Constructor
  80 void wxWindowCocoa::Init()
  81 {
  82     InitBase();
  83
  84     m_cocoaNSView = NULL;
  85     m_cocoaHider = NULL;
  86     m_isBeingDeleted = FALSE;
  87     m_isInPaint = FALSE;
  88 }
  89
  90 // Constructor
  91 bool wxWindow::Create(wxWindow *parent, wxWindowID winid,
  92            const wxPoint& pos,
  93            const wxSize& size,
  94            long style,
  95            const wxString& name)
  96 {
  97     if(!CreateBase(parent,winid,pos,size,style,wxDefaultValidator,name))
  98         return false;
  99
 100     // TODO: create the window
 101     NSRect cocoaRect = NSMakeRect(10,10,20,20);
 102     m_cocoaNSView = NULL;
 103     SetNSView([[NSView alloc] initWithFrame: cocoaRect]);
 104     [m_cocoaNSView release];
 105
 106     if (m_parent)
 107     {
 108         m_parent->AddChild(this);
 109         m_parent->CocoaAddChild(this);
 110     }
 111
 112     return TRUE;
 113 }
 114
 115 // Destructor
 116 wxWindow::~wxWindow()
 117 {
 118     wxAutoNSAutoreleasePool pool;
 119     DestroyChildren();
 120
 121     if(m_parent)
 122         m_parent->RemoveChild(this);
 123
 124     CocoaRemoveFromParent();
 125     delete m_cocoaHider;
 126     SetNSView(NULL);
 127 }
 128
 129 void wxWindowCocoa::CocoaAddChild(wxWindowCocoa *child)
 130 {
 131     NSView *childView = child->GetNSViewForSuperview();
 132
 133     wxASSERT(childView);
 134     [m_cocoaNSView addSubview: childView];
 135     child->m_isShown = !m_cocoaHider;
 136 }
 137
 138 void wxWindowCocoa::CocoaRemoveFromParent(void)
 139 {
 140     [GetNSViewForSuperview() removeFromSuperview];
 141 }
 142
 143 void wxWindowCocoa::SetNSView(WX_NSView cocoaNSView)
 144 {
 145     bool need_debug = cocoaNSView || m_cocoaNSView;
 146     if(need_debug) wxLogDebug("wxWindowCocoa=%p::SetNSView [m_cocoaNSView=%p retainCount]=%d",this,m_cocoaNSView,[m_cocoaNSView retainCount]);
 147     DisassociateNSView(m_cocoaNSView);
 148     [cocoaNSView retain];
 149     [m_cocoaNSView release];
 150     m_cocoaNSView = cocoaNSView;
 151     AssociateNSView(m_cocoaNSView);
 152     if(need_debug) wxLogDebug("wxWindowCocoa=%p::SetNSView [cocoaNSView=%p retainCount]=%d",this,cocoaNSView,[cocoaNSView retainCount]);
 153 }
 154
 155 WX_NSView wxWindowCocoa::GetNSViewForSuperview() const
 156 {
 157     return m_cocoaHider
 158         ?   m_cocoaHider->GetNSView()
 159         :   m_cocoaNSView;
 160 }
 161
 162 WX_NSView wxWindowCocoa::GetNSViewForHiding() const
 163 {
 164     return m_cocoaNSView;
 165 }
 166
 167 bool wxWindowCocoa::Cocoa_drawRect(const NSRect &rect)
 168 {
 169     wxLogDebug("Cocoa_drawRect");
 170     // Recursion can happen if the event loop runs from within the paint
 171     // handler.  For instance, if an assertion dialog is shown.
 172     // FIXME: This seems less than ideal.
 173     if(m_isInPaint)
 174     {
 175         wxLogDebug("Paint event recursion!");
 176         return false;
 177     }
 178     //FIXME: should probably turn that rect into the update region
 179     m_isInPaint = TRUE;
 180     wxPaintEvent event(m_windowId);
 181     event.SetEventObject(this);
 182     bool ret = GetEventHandler()->ProcessEvent(event);
 183     m_isInPaint = FALSE;
 184     return ret;
 185 }
 186
 187 void wxWindowCocoa::InitMouseEvent(wxMouseEvent& event, WX_NSEvent cocoaEvent)
 188 {
 189     wxASSERT_MSG([m_cocoaNSView window]==[cocoaEvent window],"Mouse event for different NSWindow");
 190     NSPoint cocoaPoint = [m_cocoaNSView convertPoint:[(NSEvent*)cocoaEvent locationInWindow] fromView:nil];
 191     NSRect cocoaRect = [m_cocoaNSView frame];
 192     const wxPoint &clientorigin = GetClientAreaOrigin();
 193     event.m_x = (wxCoord)cocoaPoint.x - clientorigin.x;
 194     event.m_y = (wxCoord)(cocoaRect.size.height - cocoaPoint.y) - clientorigin.y;
 195
 196     event.m_shiftDown = [cocoaEvent modifierFlags] & NSShiftKeyMask;
 197     event.m_controlDown = [cocoaEvent modifierFlags] & NSControlKeyMask;
 198     event.m_altDown = [cocoaEvent modifierFlags] & NSAlternateKeyMask;
 199     event.m_metaDown = [cocoaEvent modifierFlags] & NSCommandKeyMask;
 200
 201     // TODO: set timestamp?
 202     event.SetEventObject(this);
 203     event.SetId(GetId());
 204 }
 205
 206 bool wxWindowCocoa::Cocoa_mouseMoved(WX_NSEvent theEvent)
 207 {
 208     wxMouseEvent event(wxEVT_MOTION);
 209     InitMouseEvent(event,theEvent);
 210     wxLogDebug("Mouse Drag @%d,%d",event.m_x,event.m_y);
 211     return GetEventHandler()->ProcessEvent(event);
 212 }
 213
 214 bool wxWindowCocoa::Cocoa_mouseEntered(WX_NSEvent theEvent)
 215 {
 216     return false;
 217 }
 218
 219 bool wxWindowCocoa::Cocoa_mouseExited(WX_NSEvent theEvent)
 220 {
 221     return false;
 222 }
 223
 224 bool wxWindowCocoa::Cocoa_mouseDown(WX_NSEvent theEvent)
 225 {
 226     wxMouseEvent event([theEvent clickCount]<2?wxEVT_LEFT_DOWN:wxEVT_LEFT_DCLICK);
 227     InitMouseEvent(event,theEvent);
 228     wxLogDebug("Mouse Down @%d,%d num clicks=%d",event.m_x,event.m_y,[theEvent clickCount]);
 229     return GetEventHandler()->ProcessEvent(event);
 230 }
 231
 232 bool wxWindowCocoa::Cocoa_mouseDragged(WX_NSEvent theEvent)
 233 {
 234     wxMouseEvent event(wxEVT_MOTION);
 235     InitMouseEvent(event,theEvent);
 236     event.m_leftDown = true;
 237     wxLogDebug("Mouse Drag @%d,%d",event.m_x,event.m_y);
 238     return GetEventHandler()->ProcessEvent(event);
 239 }
 240
 241 bool wxWindowCocoa::Cocoa_mouseUp(WX_NSEvent theEvent)
 242 {
 243     wxMouseEvent event(wxEVT_LEFT_UP);
 244     InitMouseEvent(event,theEvent);
 245     wxLogDebug("Mouse Up @%d,%d",event.m_x,event.m_y);
 246     return GetEventHandler()->ProcessEvent(event);
 247 }
 248
 249 bool wxWindowCocoa::Cocoa_rightMouseDown(WX_NSEvent theEvent)
 250 {
 251     return false;
 252 }
 253
 254 bool wxWindowCocoa::Cocoa_rightMouseDragged(WX_NSEvent theEvent)
 255 {
 256     return false;
 257 }
 258
 259 bool wxWindowCocoa::Cocoa_rightMouseUp(WX_NSEvent theEvent)
 260 {
 261     return false;
 262 }
 263
 264 bool wxWindowCocoa::Cocoa_otherMouseDown(WX_NSEvent theEvent)
 265 {
 266     return false;
 267 }
 268
 269 bool wxWindowCocoa::Cocoa_otherMouseDragged(WX_NSEvent theEvent)
 270 {
 271     return false;
 272 }
 273
 274 bool wxWindowCocoa::Cocoa_otherMouseUp(WX_NSEvent theEvent)
 275 {
 276     return false;
 277 }
 278
 279 void wxWindowCocoa::Cocoa_FrameChanged(void)
 280 {
 281     wxLogDebug("Cocoa_FrameChanged");
 282     wxSizeEvent event(GetSize(), m_windowId);
 283     event.SetEventObject(this);
 284     GetEventHandler()->ProcessEvent(event);
 285 }
 286
 287 bool wxWindow::Close(bool force)
 288 {
 289     return false;
 290 }
 291
 292 void wxWindow::CocoaReplaceView(WX_NSView oldView, WX_NSView newView)
 293 {
 294     [[oldView superview] replaceSubview:oldView with:newView];
 295 }
 296
 297 bool wxWindow::Show(bool show)
 298 {
 299     wxAutoNSAutoreleasePool pool;
 300     // If the window is marked as visible, then it shouldn't have a dummy view
 301     // If the window is marked hidden, then it should have a dummy view
 302     // wxSpinCtrl (generic) abuses m_isShown, don't use it for any logic
 303 //    wxASSERT_MSG( (m_isShown && !m_dummyNSView) || (!m_isShown && m_dummyNSView),"wxWindow: m_isShown does not agree with m_dummyNSView");
 304     // Return false if there isn't a window to show or hide
 305     NSView *cocoaView = GetNSViewForHiding();
 306     if(!cocoaView)
 307         return false;
 308     if(show)
 309     {
 310         // If state isn't changing, return false
 311         if(!m_cocoaHider)
 312             return false;
 313         CocoaReplaceView(m_cocoaHider->GetNSView(), cocoaView);
 314         wxASSERT(![m_cocoaHider->GetNSView() superview]);
 315         delete m_cocoaHider;
 316         m_cocoaHider = NULL;
 317         wxASSERT([cocoaView superview]);
 318     }
 319     else
 320     {
 321         // If state isn't changing, return false
 322         if(m_cocoaHider)
 323             return false;
 324         m_cocoaHider = new wxWindowCocoaHider(this);
 325         // NOTE: replaceSubview:with will cause m_cocaNSView to be
 326         // (auto)released which balances out addSubview
 327         CocoaReplaceView(cocoaView, m_cocoaHider->GetNSView());
 328         // m_coocaNSView is now only retained by us
 329         wxASSERT([m_cocoaHider->GetNSView() superview]);
 330         wxASSERT(![cocoaView superview]);
 331     }
 332     m_isShown = show;
 333     return true;
 334 }
 335
 336 void wxWindowCocoa::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 337 {
 338 //    wxLogDebug("wxWindow=%p::DoSetSizeWindow(%d,%d,%d,%d,Auto: %s%s)",this,x,y,width,height,(sizeFlags&wxSIZE_AUTO_WIDTH)?"W":".",sizeFlags&wxSIZE_AUTO_HEIGHT?"H":".");
 339     int currentX, currentY;
 340     int currentW, currentH;
 341     DoGetPosition(&currentX, &currentY);
 342     DoGetSize(&currentW, &currentH);
 343     if((x==-1) && !(sizeFlags&wxSIZE_ALLOW_MINUS_ONE))
 344         x=currentX;
 345     if((y==-1) && !(sizeFlags&wxSIZE_ALLOW_MINUS_ONE))
 346         y=currentY;
 347
 348     AdjustForParentClientOrigin(x,y,sizeFlags);
 349
 350     wxSize size(-1,-1);
 351
 352     if((width==-1)&&!(sizeFlags&wxSIZE_ALLOW_MINUS_ONE))
 353     {
 354         if(sizeFlags&wxSIZE_AUTO_WIDTH)
 355         {
 356             size=DoGetBestSize();
 357             width=size.x;
 358         }
 359         else
 360             width=currentW;
 361     }
 362     if((height==-1)&&!(sizeFlags&wxSIZE_ALLOW_MINUS_ONE))
 363     {
 364         if(sizeFlags&wxSIZE_AUTO_HEIGHT)
 365         {
 366             if(size.x==-1)
 367                 size=DoGetBestSize();
 368             height=size.y;
 369         }
 370         else
 371             height=currentH;
 372     }
 373     DoMoveWindow(x,y,width,height);
 374 }
 375
 376 void wxWindowCocoa::DoMoveWindow(int x, int y, int width, int height)
 377 {
 378 //    wxLogDebug("wxWindow=%p::DoMoveWindow(%d,%d,%d,%d)",this,x,y,width,height);
 379
 380     NSView *nsview = GetNSViewForSuperview();
 381     NSView *superview = [nsview superview];
 382     wxCHECK_RET(superview,"NSView does not have a superview");
 383     NSRect parentRect = [superview frame];
 384
 385     NSRect cocoaRect = NSMakeRect(x,parentRect.size.height-(y+height),width,height);
 386     [nsview setFrame: cocoaRect];
 387 }
 388
 389 // Get total size
 390 void wxWindow::DoGetSize(int *w, int *h) const
 391 {
 392     NSRect cocoaRect = [GetNSViewForSuperview() frame];
 393     if(w)
 394         *w=(int)cocoaRect.size.width;
 395     if(h)
 396         *h=(int)cocoaRect.size.height;
 397 //    wxLogDebug("wxWindow=%p::DoGetSize = (%d,%d)",this,(int)cocoaRect.size.width,(int)cocoaRect.size.height);
 398 }
 399
 400 void wxWindow::DoGetPosition(int *x, int *y) const
 401 {
 402     NSView *nsview = GetNSViewForSuperview();
 403     NSView *superview = [nsview superview];
 404     wxCHECK_RET(superview,"NSView does not have a superview");
 405     NSRect parentRect = [superview frame];
 406
 407     NSRect cocoaRect = [nsview frame];
 408     if(x)
 409         *x=(int)cocoaRect.origin.x;
 410     if(y)
 411         *y=(int)(parentRect.size.height-(cocoaRect.origin.y+cocoaRect.size.height));
 412 //    wxLogDebug("wxWindow=%p::DoGetPosition = (%d,%d)",this,(int)cocoaRect.origin.x,(int)cocoaRect.origin.y);
 413 }
 414
 415 WXWidget wxWindow::GetHandle() const
 416 {
 417     return m_cocoaNSView;
 418 }
 419
 420 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
 421 {
 422     [m_cocoaNSView setNeedsDisplay:YES];
 423 }
 424
 425 void wxWindow::SetFocus()
 426 {
 427     // TODO
 428 }
 429
 430 void wxWindow::DoCaptureMouse()
 431 {
 432     // TODO
 433     sm_capturedWindow = this;
 434 }
 435
 436 void wxWindow::DoReleaseMouse()
 437 {
 438     // TODO
 439     sm_capturedWindow = NULL;
 440 }
 441
 442 void wxWindow::DoScreenToClient(int *x, int *y) const
 443 {
 444     // TODO
 445 }
 446
 447 void wxWindow::DoClientToScreen(int *x, int *y) const
 448 {
 449     // TODO
 450 }
 451
 452 // Get size *available for subwindows* i.e. excluding menu bar etc.
 453 void wxWindow::DoGetClientSize(int *x, int *y) const
 454 {
 455     wxLogDebug("DoGetClientSize:");
 456     wxWindowCocoa::DoGetSize(x,y);
 457     // TODO: Actually account for menubar, borders, etc...
 458 }
 459
 460 void wxWindow::DoSetClientSize(int width, int height)
 461 {
 462     wxLogDebug("DoSetClientSize=(%d,%d)",width,height);
 463     // TODO
 464 }
 465
 466 int wxWindow::GetCharHeight() const
 467 {
 468     // TODO
 469     return 0;
 470 }
 471
 472 int wxWindow::GetCharWidth() const
 473 {
 474     // TODO
 475     return 0;
 476 }
 477
 478 void wxWindow::GetTextExtent(const wxString& string, int *x, int *y,
 479         int *descent, int *externalLeading, const wxFont *theFont) const
 480 {
 481     // TODO
 482 }
 483
 484 // Coordinates relative to the window
 485 void wxWindow::WarpPointer (int x_pos, int y_pos)
 486 {
 487     // TODO
 488 }
 489
 490 int wxWindow::GetScrollPos(int orient) const
 491 {
 492     // TODO
 493     return 0;
 494 }
 495
 496 // This now returns the whole range, not just the number
 497 // of positions that we can scroll.
 498 int wxWindow::GetScrollRange(int orient) const
 499 {
 500     // TODO
 501     return 0;
 502 }
 503
 504 int wxWindow::GetScrollThumb(int orient) const
 505 {
 506     // TODO
 507     return 0;
 508 }
 509
 510 void wxWindow::SetScrollPos(int orient, int pos, bool refresh)
 511 {
 512     // TODO
 513 }
 514
 515 // New function that will replace some of the above.
 516 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 517     int range, bool refresh)
 518 {
 519     // TODO
 520 }
 521
 522 // Does a physical scroll
 523 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 524 {
 525     // TODO
 526 }
 527
 528 bool wxWindow::SetFont(const wxFont& font)
 529 {
 530     // TODO
 531     return TRUE;
 532 }
 533
 534 static int CocoaRaiseWindowCompareFunction(id first, id second, void *target)
 535 {
 536     // first should be ordered higher
 537     if(first==target)
 538         return NSOrderedDescending;
 539     // second should be ordered higher
 540     if(second==target)
 541         return NSOrderedAscending;
 542     return NSOrderedSame;
 543 }
 544
 545 // Raise the window to the top of the Z order
 546 void wxWindow::Raise()
 547 {
 548 //    wxAutoNSAutoreleasePool pool;
 549     NSView *nsview = GetNSViewForSuperview();
 550     [[nsview superview] sortSubviewsUsingFunction:
 551             CocoaRaiseWindowCompareFunction
 552         context: nsview];
 553 }
 554
 555 static int CocoaLowerWindowCompareFunction(id first, id second, void *target)
 556 {
 557     // first should be ordered lower
 558     if(first==target)
 559         return NSOrderedAscending;
 560     // second should be ordered lower
 561     if(second==target)
 562         return NSOrderedDescending;
 563     return NSOrderedSame;
 564 }
 565
 566 // Lower the window to the bottom of the Z order
 567 void wxWindow::Lower()
 568 {
 569     NSView *nsview = GetNSViewForSuperview();
 570     [[nsview superview] sortSubviewsUsingFunction:
 571             CocoaLowerWindowCompareFunction
 572         context: nsview];
 573 }
 574
 575 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
 576 {
 577     return FALSE;
 578 }
 579
 580 // Get the window with the focus
 581 wxWindow *wxWindowBase::FindFocus()
 582 {
 583     // TODO
 584     return NULL;
 585 }
 586
 587 /* static */ wxWindow *wxWindowBase::GetCapture()
 588 {
 589     // TODO
 590     return wxWindowCocoa::sm_capturedWindow;
 591 }
 592
 593 wxWindow *wxGetActiveWindow()
 594 {
 595     // TODO
 596     return NULL;
 597 }
 598
 599 wxPoint wxGetMousePosition()
 600 {
 601     // TODO
 602     return wxDefaultPosition;
 603 }
 604
 605 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
 606 {
 607     pt = wxGetMousePosition();
 608     return NULL;
 609 }
 610