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 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     if ( x )
 181         *x = pt.x;
 182     if ( y )
 183         *y = pt.y;
 184 };
 185
 186 wxTimerImpl* wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
 187 {
 188     return new wxOSXTimerImpl(timer);
 189 }
 190
 191 int gs_wxBusyCursorCount = 0;
 192 extern wxCursor    gMacCurrentCursor;
 193 wxCursor        gMacStoredActiveCursor;
 194
 195 // Set the cursor to the busy cursor for all windows
 196 void wxBeginBusyCursor(const wxCursor *cursor)
 197 {
 198     if (gs_wxBusyCursorCount++ == 0)
 199     {
 200         gMacStoredActiveCursor = gMacCurrentCursor;
 201         cursor->MacInstall();
 202
 203         wxSetCursor(*cursor);
 204     }
 205     //else: nothing to do, already set
 206 }
 207
 208 // Restore cursor to normal
 209 void wxEndBusyCursor()
 210 {
 211     wxCHECK_RET( gs_wxBusyCursorCount > 0,
 212         wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
 213
 214     if (--gs_wxBusyCursorCount == 0)
 215     {
 216         gMacStoredActiveCursor.MacInstall();
 217         gMacStoredActiveCursor = wxNullCursor;
 218
 219         wxSetCursor(wxNullCursor);
 220     }
 221 }
 222
 223 // true if we're between the above two calls
 224 bool wxIsBusy()
 225 {
 226     return (gs_wxBusyCursorCount > 0);
 227 }
 228
 229 void wxMacGlobalToLocal( WindowRef window , Point*pt )
 230 {
 231 }
 232
 233 void wxMacLocalToGlobal( WindowRef window , Point*pt )
 234 {
 235 }
 236
 237 wxBitmap wxWindowDCImpl::DoGetAsBitmap(const wxRect *subrect) const
 238 {
 239     // wxScreenDC is derived from wxWindowDC, so a screen dc will
 240     // call this method when a Blit is performed with it as a source.
 241     if (!m_window)
 242         return wxNullBitmap;
 243
 244     wxSize sz = m_window->GetSize();
 245
 246     int left = subrect != NULL ? subrect->x : 0 ;
 247     int top = subrect != NULL ? subrect->y : 0 ;
 248     int width = subrect != NULL ? subrect->width : sz.x;
 249     int height = subrect !=  NULL ? subrect->height : sz.y ;
 250
 251     NSRect rect = NSMakeRect(left, top, width, height );
 252     NSView* view = (NSView*) m_window->GetHandle();
 253     [view lockFocus];
 254     // we use this method as other methods force a repaint, and this method can be
 255     // called from OnPaint, even with the window's paint dc as source (see wxHTMLWindow)
 256     NSBitmapImageRep *rep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect: [view bounds]] retain];
 257     [view unlockFocus];
 258
 259     CGImageRef cgImageRef = (CGImageRef)[rep CGImage];
 260
 261     wxBitmap bitmap(CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 262     CGRect r = CGRectMake( 0 , 0 , CGImageGetWidth(cgImageRef)  , CGImageGetHeight(cgImageRef) );
 263     // since our context is upside down we dont use CGContextDrawImage
 264     wxMacDrawCGImage( (CGContextRef) bitmap.GetHBITMAP() , &r, cgImageRef ) ;
 265     CGImageRelease(cgImageRef);
 266     cgImageRef = NULL;
 267     [rep release];
 268
 269     return bitmap;
 270 }
 271
 272 #endif // wxUSE_GUI
 273
 274 #endif // wxOSX_USE_COCOA