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     // NSAlerts don't need nor respond to orderOut
 177     if ([sheet respondsToSelector:@selector(orderOut:)])
 178         [sheet orderOut: self];
 179 }
 180 @end
 181
 182 bool wxApp::DoInitGui()
 183 {
 184     [NSApplication sharedApplication];
 185
 186     if (!sm_isEmbedded)
 187     {
 188         wxNSAppController* controller = [[wxNSAppController alloc] init];
 189         [[NSApplication sharedApplication] setDelegate:controller];
 190
 191         NSAppleEventManager *appleEventManager = [NSAppleEventManager sharedAppleEventManager];
 192         [appleEventManager setEventHandler:controller andSelector:@selector(handleGetURLEvent:withReplyEvent:)
 193             forEventClass:kInternetEventClass andEventID:kAEGetURL];
 194     }
 195     [NSApp finishLaunching];
 196     return true;
 197 }
 198
 199 void wxApp::DoCleanUp()
 200 {
 201 }
 202
 203 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
 204 {
 205     NSRect displayRect = [[NSScreen mainScreen] visibleFrame];
 206     wxRect r = wxFromNSRect( NULL, displayRect );
 207     if ( x )
 208         *x = r.x;
 209     if ( y )
 210         *y = r.y;
 211     if ( width )
 212         *width = r.GetWidth();
 213     if ( height )
 214         *height = r.GetHeight();
 215
 216 }
 217
 218 void wxGetMousePosition( int* x, int* y )
 219 {
 220     wxPoint pt = wxFromNSPoint(NULL, [NSEvent mouseLocation]);
 221     if ( x )
 222         *x = pt.x;
 223     if ( y )
 224         *y = pt.y;
 225 };
 226
 227 wxTimerImpl* wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
 228 {
 229     return new wxOSXTimerImpl(timer);
 230 }
 231
 232 int gs_wxBusyCursorCount = 0;
 233 extern wxCursor    gMacCurrentCursor;
 234 wxCursor        gMacStoredActiveCursor;
 235
 236 // Set the cursor to the busy cursor for all windows
 237 void wxBeginBusyCursor(const wxCursor *cursor)
 238 {
 239     if (gs_wxBusyCursorCount++ == 0)
 240     {
 241         gMacStoredActiveCursor = gMacCurrentCursor;
 242         cursor->MacInstall();
 243
 244         wxSetCursor(*cursor);
 245     }
 246     //else: nothing to do, already set
 247 }
 248
 249 // Restore cursor to normal
 250 void wxEndBusyCursor()
 251 {
 252     wxCHECK_RET( gs_wxBusyCursorCount > 0,
 253         wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
 254
 255     if (--gs_wxBusyCursorCount == 0)
 256     {
 257         gMacStoredActiveCursor.MacInstall();
 258         gMacStoredActiveCursor = wxNullCursor;
 259
 260         wxSetCursor(wxNullCursor);
 261     }
 262 }
 263
 264 // true if we're between the above two calls
 265 bool wxIsBusy()
 266 {
 267     return (gs_wxBusyCursorCount > 0);
 268 }
 269
 270 void wxMacGlobalToLocal( WindowRef window , Point*pt )
 271 {
 272 }
 273
 274 void wxMacLocalToGlobal( WindowRef window , Point*pt )
 275 {
 276 }
 277
 278 wxBitmap wxWindowDCImpl::DoGetAsBitmap(const wxRect *subrect) const
 279 {
 280     // wxScreenDC is derived from wxWindowDC, so a screen dc will
 281     // call this method when a Blit is performed with it as a source.
 282     if (!m_window)
 283         return wxNullBitmap;
 284
 285     wxSize sz = m_window->GetSize();
 286
 287     int left = subrect != NULL ? subrect->x : 0 ;
 288     int top = subrect != NULL ? subrect->y : 0 ;
 289     int width = subrect != NULL ? subrect->width : sz.x;
 290     int height = subrect !=  NULL ? subrect->height : sz.y ;
 291
 292     NSRect rect = NSMakeRect(left, top, width, height );
 293     NSView* view = (NSView*) m_window->GetHandle();
 294     [view lockFocus];
 295     // we use this method as other methods force a repaint, and this method can be
 296     // called from OnPaint, even with the window's paint dc as source (see wxHTMLWindow)
 297     NSBitmapImageRep *rep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect: [view bounds]] retain];
 298     [view unlockFocus];
 299
 300     CGImageRef cgImageRef = (CGImageRef)[rep CGImage];
 301
 302     wxBitmap bitmap(CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 303     CGRect r = CGRectMake( 0 , 0 , CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 304     // since our context is upside down we dont use CGContextDrawImage
 305     wxMacDrawCGImage( (CGContextRef) bitmap.GetHBITMAP() , &r, cgImageRef ) ;
 306     CGImageRelease(cgImageRef);
 307     cgImageRef = NULL;
 308     [rep release];
 309
 310     return bitmap;
 311 }
 312
 313 #endif // wxUSE_GUI
 314
 315 #endif // wxOSX_USE_COCOA