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->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 bool wxApp::DoInitGui()
 142 {
 143     [NSApplication sharedApplication];
 144
 145     if (!sm_isEmbedded)
 146     {
 147         wxNSAppController* controller = [[wxNSAppController alloc] init];
 148         [[NSApplication sharedApplication] setDelegate:controller];
 149
 150         NSAppleEventManager *appleEventManager = [NSAppleEventManager sharedAppleEventManager];
 151         [appleEventManager setEventHandler:controller andSelector:@selector(handleGetURLEvent:withReplyEvent:)
 152             forEventClass:kInternetEventClass andEventID:kAEGetURL];
 153     }
 154     [NSApp finishLaunching];
 155     return true;
 156 }
 157
 158 void wxApp::DoCleanUp()
 159 {
 160 }
 161
 162 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
 163 {
 164     NSRect displayRect = [[NSScreen mainScreen] visibleFrame];
 165     wxRect r = wxFromNSRect( NULL, displayRect );
 166     if ( x )
 167         *x = r.x;
 168     if ( y )
 169         *y = r.y;
 170     if ( width )
 171         *width = r.GetWidth();
 172     if ( height )
 173         *height = r.GetHeight();
 174
 175 }
 176
 177 void wxGetMousePosition( int* x, int* y )
 178 {
 179     wxPoint pt = wxFromNSPoint(NULL, [NSEvent mouseLocation]);
 180 };
 181
 182 wxTimerImpl* wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
 183 {
 184     return new wxOSXTimerImpl(timer);
 185 }
 186
 187 int gs_wxBusyCursorCount = 0;
 188 extern wxCursor    gMacCurrentCursor;
 189 wxCursor        gMacStoredActiveCursor;
 190
 191 // Set the cursor to the busy cursor for all windows
 192 void wxBeginBusyCursor(const wxCursor *cursor)
 193 {
 194     if (gs_wxBusyCursorCount++ == 0)
 195     {
 196         gMacStoredActiveCursor = gMacCurrentCursor;
 197         cursor->MacInstall();
 198
 199         wxSetCursor(*cursor);
 200     }
 201     //else: nothing to do, already set
 202 }
 203
 204 // Restore cursor to normal
 205 void wxEndBusyCursor()
 206 {
 207     wxCHECK_RET( gs_wxBusyCursorCount > 0,
 208         wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
 209
 210     if (--gs_wxBusyCursorCount == 0)
 211     {
 212         gMacStoredActiveCursor.MacInstall();
 213         gMacStoredActiveCursor = wxNullCursor;
 214
 215         wxSetCursor(wxNullCursor);
 216     }
 217 }
 218
 219 // true if we're between the above two calls
 220 bool wxIsBusy()
 221 {
 222     return (gs_wxBusyCursorCount > 0);
 223 }
 224
 225 void wxMacGlobalToLocal( WindowRef window , Point*pt )
 226 {
 227 }
 228
 229 void wxMacLocalToGlobal( WindowRef window , Point*pt )
 230 {
 231 }
 232
 233 wxBitmap wxWindowDCImpl::DoGetAsBitmap(const wxRect *subrect) const
 234 {
 235     // wxScreenDC is derived from wxWindowDC, so a screen dc will
 236     // call this method when a Blit is performed with it as a source.
 237     if (!m_window)
 238         return wxNullBitmap;
 239
 240     wxSize sz = m_window->GetSize();
 241
 242     int left = subrect != NULL ? subrect->x : 0 ;
 243     int top = subrect != NULL ? subrect->y : 0 ;
 244     int width = subrect != NULL ? subrect->width : sz.x;
 245     int height = subrect !=  NULL ? subrect->height : sz.y ;
 246
 247     NSRect rect = NSMakeRect(left, top, width, height );
 248     NSView* view = (NSView*) m_window->GetHandle();
 249     [view lockFocus];
 250     // we use this method as other methods force a repaint, and this method can be
 251     // called from OnPaint, even with the window's paint dc as source (see wxHTMLWindow)
 252     NSBitmapImageRep *rep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect: [view bounds]] retain];
 253     [view unlockFocus];
 254
 255     CGImageRef cgImageRef = (CGImageRef)[rep CGImage];
 256
 257     wxBitmap bitmap(CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 258     CGRect r = CGRectMake( 0 , 0 , CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 259     // since our context is upside down we dont use CGContextDrawImage
 260     wxMacDrawCGImage( (CGContextRef) bitmap.GetHBITMAP() , &r, cgImageRef ) ;
 261     CGImageRelease(cgImageRef);
 262     cgImageRef = NULL;
 263     [rep release];
 264
 265     return bitmap;
 266 }
 267
 268 #endif // wxUSE_GUI
 269
 270
 271
 272 #endif // wxOSX_USE_COCOA