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: utils.mm 48805 2007-09-19 14:52:25Z SC $
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/wxprec.h"
  15
  16 #include "wx/utils.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/intl.h"
  20     #include "wx/app.h"
  21     #if wxUSE_GUI
  22         #include "wx/toplevel.h"
  23         #include "wx/font.h"
  24     #endif
  25 #endif
  26
  27 #include "wx/apptrait.h"
  28
  29 #include "wx/osx/private.h"
  30
  31 #if wxUSE_GUI
  32 #if wxOSX_USE_COCOA_OR_CARBON
  33     #include <CoreServices/CoreServices.h>
  34     #include "wx/osx/dcclient.h"
  35     #include "wx/osx/private/timer.h"
  36 #endif
  37 #endif // wxUSE_GUI
  38
  39 #if wxOSX_USE_COCOA
  40
  41 #if wxUSE_BASE
  42
  43 // Emit a beeeeeep
  44 void wxBell()
  45 {
  46     NSBeep();
  47 }
  48
  49 // ----------------------------------------------------------------------------
  50 // Common Event Support
  51 // ----------------------------------------------------------------------------
  52
  53 void wxMacWakeUp()
  54 {
  55     // TODO
  56 }
  57
  58 #endif // wxUSE_BASE
  59
  60 #if wxUSE_GUI
  61
  62 @interface wxNSAppController : NSObject
  63 {
  64 }
  65
  66 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender;
  67 - (BOOL)application:(NSApplication *)sender openFile:(NSString *)filename;
  68 - (BOOL)applicationShouldOpenUntitledFile:(NSApplication *)sender;
  69 - (BOOL)application:(NSApplication *)sender printFile:(NSString *)filename;
  70 - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender;
  71 - (void)handleGetURLEvent:(NSAppleEventDescriptor *)event
  72     withReplyEvent:(NSAppleEventDescriptor *)replyEvent;
  73 @end
  74
  75 @implementation wxNSAppController
  76
  77 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender
  78 {
  79     // let wx do this, not cocoa
  80     return NO;
  81 }
  82
  83 - (BOOL)application:(NSApplication *)sender openFile:(NSString *)filename;
  84 {
  85     wxCFStringRef cf(wxCFRetain(filename));
  86     wxTheApp->MacOpenFile(cf.AsString()) ;
  87     return YES;
  88 }
  89
  90 - (BOOL)applicationShouldOpenUntitledFile:(NSApplication *)sender;
  91 {
  92     wxTheApp->MacNewFile() ;
  93     return NO;
  94 }
  95
  96 - (BOOL)application:(NSApplication *)sender printFile:(NSString *)filename
  97 {
  98     wxCFStringRef cf(wxCFRetain(filename));
  99     wxTheApp->MacPrintFile(cf.AsString()) ;
 100     return YES;
 101 }
 102
 103 /*
 104     Allowable return values are:
 105         NSTerminateNow - it is ok to proceed with termination
 106         NSTerminateCancel - the application should not be terminated
 107         NSTerminateLater - it may be ok to proceed with termination later.  The application must call -replyToApplicationShouldTerminate: with YES or NO once the answer is known
 108             this return value is for delegates who need to provide document modal alerts (sheets) in order to decide whether to quit.
 109 */
 110 - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
 111 {
 112     wxWindow* win = wxTheApp->GetTopWindow() ;
 113     if ( win )
 114     {
 115         wxCommandEvent exitEvent(wxEVT_COMMAND_MENU_SELECTED, wxApp::s_macExitMenuItemId);
 116         if (!win->GetEventHandler()->ProcessEvent(exitEvent))
 117             win->Close(true) ;
 118     }
 119     else
 120     {
 121          wxTheApp->ExitMainLoop() ;
 122     }
 123     return NSTerminateCancel;
 124 }
 125
 126 - (BOOL)applicationShouldHandleReopen:(NSApplication *)sender hasVisibleWindows:(BOOL)flag
 127 {
 128     wxTheApp->MacReopenApp() ;
 129     return NO;
 130 }
 131
 132 - (void)handleGetURLEvent:(NSAppleEventDescriptor *)event
 133     withReplyEvent:(NSAppleEventDescriptor *)replyEvent
 134 {
 135     NSString* url = [[event descriptorAtIndex:1] stringValue];
 136     wxCFStringRef cf(wxCFRetain(url));
 137     wxTheApp->MacOpenURL(cf.AsString()) ;
 138 }
 139 @end
 140
 141 /*
 142     allows ShowModal to work when using sheets.
 143     see include/wx/osx/cocoa/private.h for more info
 144 */
 145 @implementation ModalDialogDelegate
 146 - (id)init
 147 {
 148     [super init];
 149     sheetFinished = NO;
 150     resultCode = -1;
 151     return self;
 152 }
 153
 154 - (BOOL)finished
 155 {
 156     return sheetFinished;
 157 }
 158
 159 - (int)code
 160 {
 161     return resultCode;
 162 }
 163
 164 - (void)waitForSheetToFinish
 165 {
 166     while (!sheetFinished)
 167     {
 168         wxSafeYield();
 169     }
 170 }
 171
 172 - (void)sheetDidEnd:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo
 173 {
 174     resultCode = returnCode;
 175     sheetFinished = YES;
 176     [sheet orderOut: self];
 177 }
 178 @end
 179
 180 bool wxApp::DoInitGui()
 181 {
 182     [NSApplication sharedApplication];
 183
 184     if (!sm_isEmbedded)
 185     {
 186         wxNSAppController* controller = [[wxNSAppController alloc] init];
 187         [[NSApplication sharedApplication] setDelegate:controller];
 188
 189         NSAppleEventManager *appleEventManager = [NSAppleEventManager sharedAppleEventManager];
 190         [appleEventManager setEventHandler:controller andSelector:@selector(handleGetURLEvent:withReplyEvent:)
 191             forEventClass:kInternetEventClass andEventID:kAEGetURL];
 192     }
 193     [NSApp finishLaunching];
 194     return true;
 195 }
 196
 197 void wxApp::DoCleanUp()
 198 {
 199 }
 200
 201 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
 202 {
 203     NSRect displayRect = [[NSScreen mainScreen] visibleFrame];
 204     wxRect r = wxFromNSRect( NULL, displayRect );
 205     if ( x )
 206         *x = r.x;
 207     if ( y )
 208         *y = r.y;
 209     if ( width )
 210         *width = r.GetWidth();
 211     if ( height )
 212         *height = r.GetHeight();
 213
 214 }
 215
 216 void wxGetMousePosition( int* x, int* y )
 217 {
 218     wxPoint pt = wxFromNSPoint(NULL, [NSEvent mouseLocation]);
 219     if ( x )
 220         *x = pt.x;
 221     if ( y )
 222         *y = pt.y;
 223 };
 224
 225 wxTimerImpl* wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
 226 {
 227     return new wxOSXTimerImpl(timer);
 228 }
 229
 230 int gs_wxBusyCursorCount = 0;
 231 extern wxCursor    gMacCurrentCursor;
 232 wxCursor        gMacStoredActiveCursor;
 233
 234 // Set the cursor to the busy cursor for all windows
 235 void wxBeginBusyCursor(const wxCursor *cursor)
 236 {
 237     if (gs_wxBusyCursorCount++ == 0)
 238     {
 239         gMacStoredActiveCursor = gMacCurrentCursor;
 240         cursor->MacInstall();
 241
 242         wxSetCursor(*cursor);
 243     }
 244     //else: nothing to do, already set
 245 }
 246
 247 // Restore cursor to normal
 248 void wxEndBusyCursor()
 249 {
 250     wxCHECK_RET( gs_wxBusyCursorCount > 0,
 251         wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
 252
 253     if (--gs_wxBusyCursorCount == 0)
 254     {
 255         gMacStoredActiveCursor.MacInstall();
 256         gMacStoredActiveCursor = wxNullCursor;
 257
 258         wxSetCursor(wxNullCursor);
 259     }
 260 }
 261
 262 // true if we're between the above two calls
 263 bool wxIsBusy()
 264 {
 265     return (gs_wxBusyCursorCount > 0);
 266 }
 267
 268 void wxMacGlobalToLocal( WindowRef window , Point*pt )
 269 {
 270 }
 271
 272 void wxMacLocalToGlobal( WindowRef window , Point*pt )
 273 {
 274 }
 275
 276 wxBitmap wxWindowDCImpl::DoGetAsBitmap(const wxRect *subrect) const
 277 {
 278     // wxScreenDC is derived from wxWindowDC, so a screen dc will
 279     // call this method when a Blit is performed with it as a source.
 280     if (!m_window)
 281         return wxNullBitmap;
 282
 283     wxSize sz = m_window->GetSize();
 284
 285     int left = subrect != NULL ? subrect->x : 0 ;
 286     int top = subrect != NULL ? subrect->y : 0 ;
 287     int width = subrect != NULL ? subrect->width : sz.x;
 288     int height = subrect !=  NULL ? subrect->height : sz.y ;
 289
 290     NSRect rect = NSMakeRect(left, top, width, height );
 291     NSView* view = (NSView*) m_window->GetHandle();
 292     [view lockFocus];
 293     // we use this method as other methods force a repaint, and this method can be
 294     // called from OnPaint, even with the window's paint dc as source (see wxHTMLWindow)
 295     NSBitmapImageRep *rep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect: [view bounds]] retain];
 296     [view unlockFocus];
 297
 298     CGImageRef cgImageRef = (CGImageRef)[rep CGImage];
 299
 300     wxBitmap bitmap(CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 301     CGRect r = CGRectMake( 0 , 0 , CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 302     // since our context is upside down we dont use CGContextDrawImage
 303     wxMacDrawCGImage( (CGContextRef) bitmap.GetHBITMAP() , &r, cgImageRef ) ;
 304     CGImageRelease(cgImageRef);
 305     cgImageRef = NULL;
 306     [rep release];
 307
 308     return bitmap;
 309 }
 310
 311 #endif // wxUSE_GUI
 312
 313 #endif // wxOSX_USE_COCOA