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supporting deployment < 10.6 when compiling against 10.7

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69445 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor 2011-10-16 20:57:09 +00:00
parent a6ac3d64f9
commit d1d9736d86
1 changed files with 33 additions and 1 deletions
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34
src/osx/utils_osx.cpp
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@ -65,11 +65,43 @@ bool wxColourDisplay()
return true;
}
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= 1070) && (MAC_OS_X_VERSION_MIN_REQUIRED < 1060)
// bring back declaration so that we can support deployment targets < 10_6
CG_EXTERN size_t CGDisplayBitsPerPixel(CGDirectDisplayID display)
CG_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_6,
__IPHONE_NA, __IPHONE_NA);
#endif
#if wxOSX_USE_COCOA_OR_CARBON
// Returns depth of screen
int wxDisplayDepth()
{
int theDepth = (int) CGDisplayBitsPerPixel(CGMainDisplayID());
int theDepth = 0;
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
if ( UMAGetSystemVersion() >= 0x1060 )
{
CGDisplayModeRef currentMode = CGDisplayCopyDisplayMode(kCGDirectMainDisplay);
CFStringRef encoding = CGDisplayModeCopyPixelEncoding(currentMode);
if(CFStringCompare(encoding, CFSTR(IO32BitDirectPixels), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
theDepth = 32;
else if(CFStringCompare(encoding, CFSTR(IO16BitDirectPixels), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
theDepth = 16;
else if(CFStringCompare(encoding, CFSTR(IO8BitIndexedPixels), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
theDepth = 8;
else
theDepth = 32; // some reasonable default
CFRelease(encoding);
}
else
#endif
{
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
theDepth = (int) CGDisplayBitsPerPixel(CGMainDisplayID());
#endif
}
return theDepth;
}