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Code Issues Releases Wiki Activity

Add workaround for screenshot tools on OSX.

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This commit is contained in:
lllucius@gmail.com 2014-12-15 05:05:48 +00:00
parent 3da4e22cee
commit 9ff563419c
1 changed files with 60 additions and 0 deletions
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60
src/commands/ScreenshotCommand.cpp
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@ -38,6 +38,62 @@ project window.
#include "../toolbars/TranscriptionToolBar.h"
#include "../widgets/Ruler.h"
#if defined(__WXMAC__) && !wxCHECK_VERSION(3, 0, 0)
//
// This is a temporary solution for capturing screenshots on
// OS X 10.6 or greater. This needs to go away once we move
// to wx3.
//
// (This was copied from wx3.1.0 source and hacked up a bit.)
//
#include <wx/mac/private.h>
#include <dlfcn.h>
typedef CGImageRef (*CGDisplayCreateImageFunc)(CGDirectDisplayID displayID);
static wxBitmap DoGetAsBitmap(const wxRect *subrect)
{
CGRect cgbounds = CGDisplayBounds(CGMainDisplayID());
wxRect rect = subrect ? *subrect : wxRect(0, 0, cgbounds.size.width, cgbounds.size.height);
wxBitmap bmp(rect.GetSize().GetWidth(), rect.GetSize().GetHeight(), 32);
CGDisplayCreateImageFunc createImage =
(CGDisplayCreateImageFunc) dlsym(RTLD_NEXT, "CGDisplayCreateImage");
if (createImage == NULL)
{
return bmp;
}
CGRect srcRect = CGRectMake(rect.x, rect.y, rect.width, rect.height);
CGContextRef context = (CGContextRef)bmp.GetHBITMAP();
CGContextSaveGState(context);
CGContextTranslateCTM( context, 0, cgbounds.size.height );
CGContextScaleCTM( context, 1, -1 );
if ( subrect )
srcRect = CGRectOffset( srcRect, -subrect->x, -subrect->y ) ;
CGImageRef image = NULL;
image = createImage(kCGDirectMainDisplay);
wxASSERT_MSG(image, wxT("wxScreenDC::GetAsBitmap - unable to get screenshot."));
CGContextDrawImage(context, srcRect, image);
CGImageRelease(image);
CGContextRestoreGState(context);
return bmp;
}
#endif
wxTopLevelWindow *ScreenshotCommand::GetFrontWindow(AudacityProject *project)
{
wxWindow *front = NULL;
@ -118,11 +174,15 @@ void ScreenshotCommand::Capture(wxString filename,
wxScreenDC screenDC;
wxMemoryDC fullDC;
#if defined(__WXMAC__) && !wxCHECK_VERSION(3, 0, 0)
full = DoGetAsBitmap(NULL);
#else
// We grab the whole screen image since there seems to be a problem with
// using non-zero source coordinates on OSX. (as of wx2.8.9)
fullDC.SelectObject(full);
fullDC.Blit(0, 0, screenW, screenH, &screenDC, 0, 0);
fullDC.SelectObject(wxNullBitmap);
#endif
wxRect r(x, y, width, height);