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Fixing vertical mirrored drawing for overlay on macos

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This commit is contained in:
Stefan Csomor
2017-09-09 19:32:18 +02:00
parent abfd27db91
commit a0f924191e
1 changed files with 18 additions and 16 deletions
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34
src/osx/cocoa/overlay.mm
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@@ -114,21 +114,6 @@ void wxOverlayImpl::Init( wxDC* dc, int x , int y , int width , int height )
wxASSERT_MSG(m_overlayWindow != NULL, _("Couldn't create the overlay window"));
m_overlayContext = (CGContextRef) [[m_overlayWindow graphicsContext] graphicsPort];
wxASSERT_MSG( m_overlayContext != NULL , _("Couldn't init the context on the overlay window") );
int ySize = 0;
if ( m_window )
{
ySize = m_height;
}
else
{
CGRect cgbounds ;
cgbounds = CGDisplayBounds(CGMainDisplayID());
ySize = cgbounds.size.height;
}
CGContextTranslateCTM(m_overlayContext, 0, ySize);
CGContextScaleCTM(m_overlayContext, 1, -1);
}
void wxOverlayImpl::BeginDrawing( wxDC* dc)
@@ -137,7 +122,24 @@ void wxOverlayImpl::BeginDrawing( wxDC* dc)
wxGCDCImpl *win_impl = wxDynamicCast(impl,wxGCDCImpl);
if (win_impl)
{
win_impl->SetGraphicsContext( wxGraphicsContext::CreateFromNative( m_overlayContext ) );
int ySize = 0;
if ( m_window )
{
ySize = m_height;
}
else
{
CGRect cgbounds ;
cgbounds = CGDisplayBounds(CGMainDisplayID());
ySize = cgbounds.size.height;
}
wxGraphicsContext* ctx = wxGraphicsContext::CreateFromNative( m_overlayContext );
ctx->Translate(0, ySize);
ctx->Scale(1,-1);
win_impl->SetGraphicsContext( ctx );
if (m_window)
dc->SetDeviceOrigin(dc->LogicalToDeviceX(-m_x), dc->LogicalToDeviceY(-m_y));
dc->SetClippingRegion(m_x, m_y, m_width, m_height);