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adding NSImage to CGImageRef conversion

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62225 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor
2009-10-02 17:51:16 +00:00
parent bb3400a873
commit 1821877f7f
2 changed files with 20 additions and 0 deletions
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1
include/wx/osx/cocoa/private.h
View File

@@ -46,6 +46,7 @@ OSStatus WXDLLIMPEXP_CORE wxMacDrawCGImage(
const CGRect * inBounds,
CGImageRef inImage) ;
WX_NSImage WXDLLIMPEXP_CORE wxOSXCreateNSImageFromCGImage( CGImageRef image );
CGImageRef WXDLLIMPEXP_CORE wxOSXCreateCGImageFromNSSImage( WX_NSImage nsimage );
#endif
long UMAGetSystemVersion() ;

19
src/osx/carbon/utilscocoa.mm
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@@ -313,6 +313,25 @@ WX_NSImage wxOSXCreateNSImageFromCGImage( CGImageRef image )
return( newImage );
}
CGImageRef wxOSXCreateCGImageFromNSSImage( WX_NSImage nsimage )
{
// based on http://www.mail-archive.com/cocoa-dev@lists.apple.com/msg18065.html
NSSize imageSize = [nsimage size];
CGColorSpaceRef genericRGB = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
CGContextRef context = CGBitmapContextCreate(NULL, imageSize.width, imageSize.height, 8, 0, genericRGB, kCGImageAlphaPremultipliedFirst);
NSGraphicsContext *nsGraphicsContext = [NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:NO];
[NSGraphicsContext saveGraphicsState];
[NSGraphicsContext setCurrentContext:nsGraphicsContext];
[[NSColor yellowColor] setFill];
NSRectFill(NSMakeRect(0.0, 0.0, imageSize.width, imageSize.height));
[nsimage drawAtPoint:NSZeroPoint fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0];
[NSGraphicsContext setCurrentContext:nsGraphicsContext];
CGImageRef image = CGBitmapContextCreateImage(context);
CFRelease(context);
return image;
}
// ----------------------------------------------------------------------------
// NSCursor Utils
// ----------------------------------------------------------------------------