src/cocoa/mdi.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        cocoa/mdi.mm
   3 // Purpose:     wxMDIParentFrame, wxMDIChildFrame, wxMDIClientWindow
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2003/09/08
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 David Elliott
   9 // Licence:     wxWidgets licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13 #ifndef WX_PRECOMP
  14     #include "wx/log.h"
  15     #include "wx/mdi.h"
  16 #endif // WX_PRECOMP
  17
  18 // #include "wx/cocoa/autorelease.h"
  19 #include "wx/cocoa/mbarman.h"
  20
  21 #import <AppKit/NSWindow.h>
  22 #import <Foundation/NSNotification.h>
  23 // #import <AppKit/NSApplication.h>
  24 // #import <AppKit/NSView.h>
  25
  26 #include <wx/listimpl.cpp>
  27 WX_DEFINE_LIST(wxCocoaMDIChildFrameList);
  28
  29 WX_DECLARE_HASH_MAP(int, wxMDIChildFrame*, wxIntegerHash, wxIntegerEqual, wxIntMDIChildFrameHashMap);
  30
  31 // ============================================================================
  32 // wxMDIParentFrameObserver
  33 // ============================================================================
  34 @interface wxMDIParentFrameObserver : NSObject
  35 {
  36     wxMDIParentFrame *m_mdiParent;
  37 }
  38
  39 - (id)init;
  40 - (id)initWithWxMDIParentFrame: (wxMDIParentFrame *)mdiParent;
  41 - (void)windowDidBecomeMain: (NSNotification *)notification;
  42 @end // interface wxMDIParentFrameObserver : NSObject
  43
  44 @implementation wxMDIParentFrameObserver : NSObject
  45 - (id)init
  46 {
  47     wxFAIL_MSG(wxT("[wxMDIParentFrameObserver -init] should never be called!"));
  48     m_mdiParent = NULL;
  49     return self;
  50 }
  51
  52 - (id)initWithWxMDIParentFrame: (wxMDIParentFrame *)mdiParent
  53 {
  54     wxASSERT(mdiParent);
  55     m_mdiParent = mdiParent;
  56     return [super init];
  57 }
  58
  59 - (void)windowDidBecomeMain: (NSNotification *)notification
  60 {
  61     wxASSERT(m_mdiParent);
  62     m_mdiParent->WindowDidBecomeMain(notification);
  63 }
  64
  65 @end // implementation wxMDIParentFrameObserver : NSObject
  66
  67 // ========================================================================
  68 // wxMDIParentFrame
  69 // ========================================================================
  70 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame,wxFrame)
  71 BEGIN_EVENT_TABLE(wxMDIParentFrame,wxFrame)
  72 END_EVENT_TABLE()
  73
  74 void wxMDIParentFrame::Init()
  75 {
  76     m_clientWindow = NULL;
  77     m_currentChild = NULL;
  78     m_observer = [[wxMDIParentFrameObserver alloc]
  79             initWithWxMDIParentFrame:this];
  80     [[NSNotificationCenter defaultCenter] addObserver:m_observer
  81             selector:@selector(windowDidBecomeMain:)
  82             name:NSWindowDidBecomeMainNotification object:nil];
  83 }
  84
  85 bool wxMDIParentFrame::Create(wxWindow *parent,
  86         wxWindowID winid, const wxString& title,
  87         const wxPoint& pos, const wxSize& size,
  88         long style, const wxString& name)
  89 {
  90     bool success = wxFrame::Create(parent,winid,title,pos,size,style,name);
  91     if(success)
  92         OnCreateClient();
  93     return success;
  94 }
  95
  96 wxMDIParentFrame::~wxMDIParentFrame()
  97 {
  98     for(wxCocoaMDIChildFrameList::compatibility_iterator node =
  99             m_mdiChildren.GetFirst(); node; node = m_mdiChildren.GetFirst())
 100     {
 101         wxMDIChildFrame *child = node->GetData();
 102         // Delete it NOW
 103         delete child;
 104         wxASSERT_MSG(!m_mdiChildren.Find(child),
 105             wxT("MDI child didn't remove itself using RemoveMDIChild()"));
 106     }
 107     [m_observer release];
 108 }
 109
 110 void wxMDIParentFrame::AddMDIChild(wxMDIChildFrame *child)
 111 {
 112     m_mdiChildren.Append(child);
 113 }
 114
 115 void wxMDIParentFrame::RemoveMDIChild(wxMDIChildFrame *child)
 116 {
 117     m_mdiChildren.DeleteObject(child);
 118     if(child==m_currentChild)
 119         SetActiveChild(NULL);
 120 }
 121
 122 wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 123 {
 124     return m_currentChild;
 125 }
 126
 127 void wxMDIParentFrame::SetActiveChild(wxMDIChildFrame *child)
 128 {
 129     m_currentChild = child;
 130     wxMenuBarManager::GetInstance()->UpdateMenuBar();
 131 }
 132
 133 wxMDIClientWindow *wxMDIParentFrame::GetClientWindow() const
 134 {
 135     return m_clientWindow;
 136 }
 137
 138 wxMDIClientWindow *wxMDIParentFrame::OnCreateClient()
 139 {
 140     m_clientWindow = new wxMDIClientWindow( this );
 141     return m_clientWindow;
 142 }
 143
 144 void wxMDIParentFrame::ActivateNext()
 145 {
 146 }
 147
 148 void wxMDIParentFrame::ActivatePrevious()
 149 {
 150 }
 151
 152 wxMenuBar *wxMDIParentFrame::GetAppMenuBar(wxCocoaNSWindow *win)
 153 {
 154     if(m_currentChild && (win==this))
 155         return m_currentChild->GetAppMenuBar(win);
 156     return wxFrame::GetAppMenuBar(win);
 157 }
 158
 159 void wxMDIParentFrame::CocoaDelegate_windowDidBecomeKey(void)
 160 {
 161     wxLogTrace(wxTRACE_COCOA,wxT("wxMDIParentFrame=%p::CocoaDelegate_windowDidBecomeKey"),this);
 162     if(sm_cocoaDeactivateWindow && sm_cocoaDeactivateWindow==m_currentChild)
 163     {
 164         sm_cocoaDeactivateWindow = NULL;
 165     }
 166     #if 0
 167     else if(sm_cocoaDeactivateWindow == this)
 168     {
 169         sm_cocoaDeactivateWindow = NULL;
 170     }
 171     #endif
 172     else
 173     {
 174         if(m_currentChild)
 175         {
 176             NSWindow *nswin = m_currentChild->GetNSWindow();
 177             if(![nswin isMainWindow])
 178                 [nswin makeMainWindow];
 179         }
 180         wxFrame::CocoaDelegate_windowDidBecomeKey();
 181     }
 182 }
 183
 184 void wxMDIParentFrame::CocoaDelegate_windowDidResignKey(void)
 185 {
 186     wxLogTrace(wxTRACE_COCOA,wxT("wxMDIParentFrame=%p::CocoaDelegate_windowDidResignKey"),this);
 187     if(m_closed)
 188         wxFrame::CocoaDelegate_windowDidResignKey();
 189     else
 190         sm_cocoaDeactivateWindow = this;
 191 }
 192
 193 // We should not become the main window as we aren't a document window
 194 // MDI "Children" should be the main window
 195 bool wxMDIParentFrame::Cocoa_canBecomeMainWindow(bool &canBecome)
 196 {
 197     canBecome = m_mdiChildren.IsEmpty(); return true;
 198 }
 199
 200 void wxMDIParentFrame::WindowDidBecomeMain(NSNotification *notification)
 201 {
 202     // If we aren't the key window, we don't care
 203     if(![m_cocoaNSWindow isKeyWindow])
 204         return;
 205     wxCocoaNSWindow *win = wxCocoaNSWindow::GetFromCocoa([notification object]);
 206     // If we are key and becoming main, that's great
 207     if(win==this)
 208         return;
 209     // If one of our children is becoming main, also great
 210     for(wxCocoaMDIChildFrameList::compatibility_iterator node =
 211             m_mdiChildren.GetFirst(); node; node = node->GetNext())
 212     {
 213         wxMDIChildFrame *child = node->GetData();
 214         if(win==child)
 215             return;
 216     }
 217     // Some other window is becoming main, but we are key
 218     // Make the new main window the key window
 219     [[notification object] makeKeyWindow];
 220     if(!m_currentChild)
 221     {
 222         wxIntMDIChildFrameHashMap hashmap;
 223         for(wxCocoaMDIChildFrameList::compatibility_iterator node =
 224                 m_mdiChildren.GetFirst(); node; node = node->GetNext())
 225         {
 226             wxMDIChildFrame *child = node->GetData();
 227             hashmap.insert(wxIntMDIChildFrameHashMap::value_type([child->m_cocoaNSWindow windowNumber],child));
 228         }
 229         if(!hashmap.empty())
 230         {
 231             int windowCount = 0;
 232             NSCountWindows(&windowCount);
 233             wxASSERT(windowCount>0);
 234             int *windowList = new int[windowCount];
 235             NSWindowList(windowCount, windowList);
 236             wxIntMDIChildFrameHashMap::iterator iter = hashmap.end();
 237             for(int i=0; i<windowCount && iter == hashmap.end(); i++)
 238                 iter=hashmap.find(windowList[i]);
 239             if(iter != hashmap.end())
 240                 m_currentChild = iter->second;
 241         }
 242     }
 243 }
 244
 245 // ========================================================================
 246 // wxMDIChildFrame
 247 // ========================================================================
 248 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame,wxFrame)
 249 BEGIN_EVENT_TABLE(wxMDIChildFrame,wxFrame)
 250 END_EVENT_TABLE()
 251
 252 void wxMDIChildFrame::Init()
 253 {
 254     m_mdiParent = NULL;
 255 }
 256
 257 bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
 258         wxWindowID winid, const wxString& title,
 259         const wxPoint& pos, const wxSize& size,
 260         long style, const wxString& name)
 261 {
 262     bool success = wxFrame::Create(parent,winid,title,pos,size,style,name);
 263     if(success)
 264     {
 265         m_mdiParent = parent;
 266         parent->AddMDIChild(this);
 267     }
 268     return success;
 269 }
 270
 271 wxMDIChildFrame::~wxMDIChildFrame()
 272 {
 273     // Just in case Destroy() wasn't called
 274     m_mdiParent->RemoveMDIChild(this);
 275 }
 276
 277 void wxMDIChildFrame::Activate()
 278 {
 279 }
 280
 281 void wxMDIChildFrame::CocoaDelegate_windowDidBecomeKey(void)
 282 {
 283     wxLogTrace(wxTRACE_COCOA,wxT("wxMDIChildFrame=%p::CocoaDelegate_windowDidBecomeKey"),this);
 284     if(sm_cocoaDeactivateWindow && sm_cocoaDeactivateWindow==m_mdiParent)
 285     {
 286         sm_cocoaDeactivateWindow = NULL;
 287         if(m_mdiParent->GetActiveChild() != this)
 288             sm_cocoaDeactivateWindow = m_mdiParent->GetActiveChild();
 289     }
 290     m_mdiParent->SetActiveChild(this);
 291     wxFrame::CocoaDelegate_windowDidBecomeKey();
 292 }
 293
 294 void wxMDIChildFrame::CocoaDelegate_windowDidBecomeMain(void)
 295 {
 296     m_mdiParent->SetActiveChild(this);
 297     wxFrame::CocoaDelegate_windowDidBecomeMain();
 298 }
 299
 300 void wxMDIChildFrame::CocoaDelegate_windowDidResignKey(void)
 301 {
 302     wxLogTrace(wxTRACE_COCOA,wxT("wxMDIChildFrame=%p::CocoaDelegate_windowDidResignKey"),this);
 303     sm_cocoaDeactivateWindow = this;
 304 }
 305
 306 bool wxMDIChildFrame::Destroy()
 307 {
 308     // It's good to do this here before we are really closed
 309     m_mdiParent->RemoveMDIChild(this);
 310     return wxFrame::Destroy();
 311 }
 312
 313 // ========================================================================
 314 // wxMDIClientWindow
 315 // ========================================================================
 316 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow,wxWindow)
 317
 318 wxMDIClientWindow::wxMDIClientWindow()
 319 {
 320 }
 321
 322 wxMDIClientWindow::wxMDIClientWindow(wxMDIParentFrame *parent, long style)
 323 :   wxWindow(parent, -1)
 324 {
 325 }
 326
 327 wxMDIClientWindow::~wxMDIClientWindow()
 328 {
 329 }
 330
 331 bool wxMDIClientWindow::CreateClient( wxMDIParentFrame *parent, long style)
 332 {
 333     return false;
 334 }
 335