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macOS Implementation for wxDisplay::GetScaleFactor

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This commit is contained in:
Stefan Csomor
2020-08-07 16:34:27 +02:00
committed by Vadim Zeitlin
parent f572797965
commit 16ff1f8f7c
1 changed files with 9 additions and 0 deletions
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9
src/osx/core/display.cpp
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@@ -104,6 +104,7 @@ public:
virtual wxRect GetClientArea() const wxOVERRIDE;
virtual int GetDepth() const wxOVERRIDE;
virtual wxSize GetSizeMM() const wxOVERRIDE;
virtual double GetScaleFactor() const wxOVERRIDE;
virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const wxOVERRIDE;
virtual wxVideoMode GetCurrentMode() const wxOVERRIDE;
@@ -270,6 +271,14 @@ wxSize wxDisplayImplMacOSX::GetSizeMM() const
return wxGetDisplaySizeMM(m_id);
}
double wxDisplayImplMacOSX::GetScaleFactor() const
{
wxCFRef<CGDisplayModeRef> mode = CGDisplayCopyDisplayMode(m_id);
size_t width = CGDisplayModeGetWidth(mode);
size_t pixelsw = CGDisplayModeGetPixelWidth(mode);
return (double)pixelsw / width;
}
static int wxOSXCGDisplayModeGetBitsPerPixel( CGDisplayModeRef theValue )
{
wxCFRef<CFStringRef> pixelEncoding( CGDisplayModeCopyPixelEncoding(theValue) );