src/osx/cocoa/utils.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/cocoa/utils.mm
   3 // Purpose:     various cocoa utility functions
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/utils.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/intl.h"
  18     #include "wx/app.h"
  19     #if wxUSE_GUI
  20         #include "wx/dialog.h"
  21         #include "wx/toplevel.h"
  22         #include "wx/font.h"
  23     #endif
  24 #endif
  25
  26 #include "wx/apptrait.h"
  27
  28 #include "wx/osx/private.h"
  29
  30 #if wxUSE_GUI
  31 #if wxOSX_USE_COCOA_OR_CARBON
  32     #include <CoreServices/CoreServices.h>
  33     #include "wx/osx/dcclient.h"
  34     #include "wx/osx/private/timer.h"
  35 #endif
  36 #endif // wxUSE_GUI
  37
  38 #if wxOSX_USE_COCOA
  39
  40 #if wxUSE_BASE
  41
  42 // Emit a beeeeeep
  43 void wxBell()
  44 {
  45     NSBeep();
  46 }
  47
  48 #endif // wxUSE_BASE
  49
  50 #if wxUSE_GUI
  51
  52 @implementation wxNSAppController
  53
  54 - (void)applicationWillFinishLaunching:(NSNotification *)application {
  55     wxUnusedVar(application);
  56
  57     // we must install our handlers later than setting the app delegate, because otherwise our handlers
  58     // get overwritten in the meantime
  59
  60     NSAppleEventManager *appleEventManager = [NSAppleEventManager sharedAppleEventManager];
  61
  62     [appleEventManager setEventHandler:self andSelector:@selector(handleGetURLEvent:withReplyEvent:)
  63                          forEventClass:kInternetEventClass andEventID:kAEGetURL];
  64
  65     [appleEventManager setEventHandler:self andSelector:@selector(handleOpenAppEvent:withReplyEvent:)
  66                          forEventClass:kCoreEventClass andEventID:kAEOpenApplication];
  67
  68 }
  69
  70 - (void)application:(NSApplication *)sender openFiles:(NSArray *)fileNames
  71 {
  72     wxUnusedVar(sender);
  73     wxArrayString fileList;
  74     size_t i;
  75     const size_t count = [fileNames count];
  76     for (i = 0; i < count; i++)
  77     {
  78         fileList.Add( wxCFStringRef::AsString([fileNames objectAtIndex:i]) );
  79     }
  80
  81     wxTheApp->MacOpenFiles(fileList);
  82 }
  83
  84 - (BOOL)application:(NSApplication *)sender printFile:(NSString *)filename
  85 {
  86     wxUnusedVar(sender);
  87     wxCFStringRef cf(wxCFRetain(filename));
  88     wxTheApp->MacPrintFile(cf.AsString()) ;
  89     return YES;
  90 }
  91
  92 - (BOOL)applicationShouldHandleReopen:(NSApplication *)sender hasVisibleWindows:(BOOL)flag
  93 {
  94     wxUnusedVar(flag);
  95     wxUnusedVar(sender);
  96     wxTheApp->MacReopenApp() ;
  97     return NO;
  98 }
  99
 100 - (void)handleGetURLEvent:(NSAppleEventDescriptor *)event
 101            withReplyEvent:(NSAppleEventDescriptor *)replyEvent
 102 {
 103     wxUnusedVar(replyEvent);
 104     NSString* url = [[event descriptorAtIndex:1] stringValue];
 105     wxCFStringRef cf(wxCFRetain(url));
 106     wxTheApp->MacOpenURL(cf.AsString()) ;
 107 }
 108
 109 - (void)handleOpenAppEvent:(NSAppleEventDescriptor *)event
 110            withReplyEvent:(NSAppleEventDescriptor *)replyEvent
 111 {
 112     wxUnusedVar(replyEvent);
 113     wxTheApp->MacNewFile() ;
 114 }
 115
 116 /*
 117     Allowable return values are:
 118         NSTerminateNow - it is ok to proceed with termination
 119         NSTerminateCancel - the application should not be terminated
 120         NSTerminateLater - it may be ok to proceed with termination later.  The application must call -replyToApplicationShouldTerminate: with YES or NO once the answer is known
 121             this return value is for delegates who need to provide document modal alerts (sheets) in order to decide whether to quit.
 122 */
 123 - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
 124 {
 125     wxUnusedVar(sender);
 126     wxCloseEvent event;
 127     wxTheApp->OnQueryEndSession(event);
 128     if ( event.GetVeto() )
 129         return NSTerminateCancel;
 130
 131     return NSTerminateNow;
 132 }
 133
 134 - (void)applicationWillTerminate:(NSNotification *)application {
 135     wxUnusedVar(application);
 136     wxCloseEvent event;
 137     event.SetCanVeto(false);
 138     wxTheApp->OnEndSession(event);
 139 }
 140
 141 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender
 142 {
 143     wxUnusedVar(sender);
 144     // let wx do this, not cocoa
 145     return NO;
 146 }
 147
 148 - (void)applicationDidBecomeActive:(NSNotification *)notification
 149 {
 150     wxUnusedVar(notification);
 151
 152     for ( wxWindowList::const_iterator i = wxTopLevelWindows.begin(),
 153          end = wxTopLevelWindows.end();
 154          i != end;
 155          ++i )
 156     {
 157         wxTopLevelWindow * const win = static_cast<wxTopLevelWindow *>(*i);
 158         wxNonOwnedWindowImpl* winimpl = win ? win->GetNonOwnedPeer() : NULL;
 159         WXWindow nswindow = win ? win->GetWXWindow() : nil;
 160
 161         if ( nswindow && [nswindow hidesOnDeactivate] == NO && winimpl)
 162             winimpl->RestoreWindowLevel();
 163     }
 164     if ( wxTheApp )
 165         wxTheApp->SetActive( true , NULL ) ;
 166 }
 167
 168 - (void)applicationWillResignActive:(NSNotification *)notification
 169 {
 170     wxUnusedVar(notification);
 171     for ( wxWindowList::const_iterator i = wxTopLevelWindows.begin(),
 172          end = wxTopLevelWindows.end();
 173          i != end;
 174          ++i )
 175     {
 176         wxTopLevelWindow * const win = static_cast<wxTopLevelWindow *>(*i);
 177         WXWindow nswindow = win ? win->GetWXWindow() : nil;
 178
 179         if ( nswindow && [nswindow level] == kCGFloatingWindowLevel && [nswindow hidesOnDeactivate] == NO )
 180             [nswindow setLevel:kCGNormalWindowLevel];
 181     }
 182 }
 183
 184 - (void)applicationDidResignActive:(NSNotification *)notification
 185 {
 186     wxUnusedVar(notification);
 187     if ( wxTheApp )
 188         wxTheApp->SetActive( false , NULL ) ;
 189 }
 190
 191 @end
 192
 193 /*
 194     allows ShowModal to work when using sheets.
 195     see include/wx/osx/cocoa/private.h for more info
 196 */
 197 @implementation ModalDialogDelegate
 198 - (id)init
 199 {
 200     self = [super init];
 201     sheetFinished = NO;
 202     resultCode = -1;
 203     impl = 0;
 204     return self;
 205 }
 206
 207 - (void)setImplementation: (wxDialog *)dialog
 208 {
 209     impl = dialog;
 210 }
 211
 212 - (BOOL)finished
 213 {
 214     return sheetFinished;
 215 }
 216
 217 - (int)code
 218 {
 219     return resultCode;
 220 }
 221
 222 - (void)waitForSheetToFinish
 223 {
 224     while (!sheetFinished)
 225     {
 226         wxSafeYield();
 227     }
 228 }
 229
 230 - (void)sheetDidEnd:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo
 231 {
 232     wxUnusedVar(contextInfo);
 233     resultCode = returnCode;
 234     sheetFinished = YES;
 235     // NSAlerts don't need nor respond to orderOut
 236     if ([sheet respondsToSelector:@selector(orderOut:)])
 237         [sheet orderOut: self];
 238
 239     if (impl)
 240         impl->ModalFinishedCallback(sheet, returnCode);
 241 }
 242 @end
 243
 244 bool wxApp::DoInitGui()
 245 {
 246     wxMacAutoreleasePool pool;
 247     [NSApplication sharedApplication];
 248
 249     if (!sm_isEmbedded)
 250     {
 251         wxNSAppController* controller = [[wxNSAppController alloc] init];
 252         [NSApp setDelegate:controller];
 253
 254         // calling finishLaunching so early before running the loop seems to trigger some 'MenuManager compatibility' which leads
 255         // to the duplication of menus under 10.5 and a warning under 10.6
 256 #if 0
 257         [NSApp finishLaunching];
 258 #endif
 259     }
 260     return true;
 261 }
 262
 263 void wxApp::DoCleanUp()
 264 {
 265 }
 266
 267 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
 268 {
 269     NSRect displayRect = [wxOSXGetMenuScreen() visibleFrame];
 270     wxRect r = wxFromNSRect( NULL, displayRect );
 271     if ( x )
 272         *x = r.x;
 273     if ( y )
 274         *y = r.y;
 275     if ( width )
 276         *width = r.GetWidth();
 277     if ( height )
 278         *height = r.GetHeight();
 279
 280 }
 281
 282 void wxGetMousePosition( int* x, int* y )
 283 {
 284     wxPoint pt = wxFromNSPoint(NULL, [NSEvent mouseLocation]);
 285     if ( x )
 286         *x = pt.x;
 287     if ( y )
 288         *y = pt.y;
 289 };
 290
 291 #if wxOSX_USE_COCOA && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_6
 292
 293 wxMouseState wxGetMouseState()
 294 {
 295     wxMouseState ms;
 296
 297     wxPoint pt = wxGetMousePosition();
 298     ms.SetX(pt.x);
 299     ms.SetY(pt.y);
 300
 301     NSUInteger modifiers = [NSEvent modifierFlags];
 302     NSUInteger buttons = [NSEvent pressedMouseButtons];
 303
 304     ms.SetLeftDown( (buttons & 0x01) != 0 );
 305     ms.SetMiddleDown( (buttons & 0x04) != 0 );
 306     ms.SetRightDown( (buttons & 0x02) != 0 );
 307
 308     ms.SetRealControlDown(modifiers & NSControlKeyMask);
 309     ms.SetShiftDown(modifiers & NSShiftKeyMask);
 310     ms.SetAltDown(modifiers & NSAlternateKeyMask);
 311     ms.SetControlDown(modifiers & NSCommandKeyMask);
 312
 313     return ms;
 314 }
 315
 316
 317 #endif
 318
 319 wxTimerImpl* wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
 320 {
 321     return new wxOSXTimerImpl(timer);
 322 }
 323
 324 int gs_wxBusyCursorCount = 0;
 325 extern wxCursor    gMacCurrentCursor;
 326 wxCursor        gMacStoredActiveCursor;
 327
 328 // Set the cursor to the busy cursor for all windows
 329 void wxBeginBusyCursor(const wxCursor *cursor)
 330 {
 331     if (gs_wxBusyCursorCount++ == 0)
 332     {
 333         NSEnumerator *enumerator = [[[NSApplication sharedApplication] windows] objectEnumerator];
 334         id object;
 335
 336         while ((object = [enumerator nextObject])) {
 337             [(NSWindow*) object disableCursorRects];
 338         }
 339
 340         gMacStoredActiveCursor = gMacCurrentCursor;
 341         cursor->MacInstall();
 342
 343         wxSetCursor(*cursor);
 344     }
 345     //else: nothing to do, already set
 346 }
 347
 348 // Restore cursor to normal
 349 void wxEndBusyCursor()
 350 {
 351     wxCHECK_RET( gs_wxBusyCursorCount > 0,
 352         wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
 353
 354     if (--gs_wxBusyCursorCount == 0)
 355     {
 356         NSEnumerator *enumerator = [[[NSApplication sharedApplication] windows] objectEnumerator];
 357         id object;
 358
 359         while ((object = [enumerator nextObject])) {
 360             [(NSWindow*) object enableCursorRects];
 361         }
 362
 363         wxSetCursor(wxNullCursor);
 364
 365         gMacStoredActiveCursor.MacInstall();
 366         gMacStoredActiveCursor = wxNullCursor;
 367     }
 368 }
 369
 370 // true if we're between the above two calls
 371 bool wxIsBusy()
 372 {
 373     return (gs_wxBusyCursorCount > 0);
 374 }
 375
 376 wxBitmap wxWindowDCImpl::DoGetAsBitmap(const wxRect *subrect) const
 377 {
 378     // wxScreenDC is derived from wxWindowDC, so a screen dc will
 379     // call this method when a Blit is performed with it as a source.
 380     if (!m_window)
 381         return wxNullBitmap;
 382
 383     wxSize sz = m_window->GetSize();
 384
 385     int width = subrect != NULL ? subrect->width : sz.x;
 386     int height = subrect !=  NULL ? subrect->height : sz.y ;
 387
 388     wxBitmap bitmap(width, height);
 389
 390     NSView* view = (NSView*) m_window->GetHandle();
 391     if ( [view isHiddenOrHasHiddenAncestor] == NO )
 392     {
 393         [view lockFocus];
 394         // we use this method as other methods force a repaint, and this method can be
 395         // called from OnPaint, even with the window's paint dc as source (see wxHTMLWindow)
 396         NSBitmapImageRep *rep = [[NSBitmapImageRep alloc] initWithFocusedViewRect: [view bounds]];
 397         [view unlockFocus];
 398         if ( [rep respondsToSelector:@selector(CGImage)] )
 399         {
 400             CGImageRef cgImageRef = (CGImageRef)[rep CGImage];
 401
 402             CGRect r = CGRectMake( 0 , 0 , CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 403             // since our context is upside down we dont use CGContextDrawImage
 404             wxMacDrawCGImage( (CGContextRef) bitmap.GetHBITMAP() , &r, cgImageRef ) ;
 405         }
 406         else
 407         {
 408             // TODO for 10.4 in case we can support this for osx_cocoa
 409         }
 410         [rep release];
 411     }
 412
 413     return bitmap;
 414 }
 415
 416 #endif // wxUSE_GUI
 417
 418 #endif // wxOSX_USE_COCOA