17db93e969
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60014 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
99 lines
3.0 KiB
C++
99 lines
3.0 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/osx/carbon/dcscreen.cpp
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// Purpose: wxScreenDC class
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// Author: Stefan Csomor
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// Modified by:
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// Created: 1998-01-01
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// RCS-ID: $Id$
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// Copyright: (c) Stefan Csomor
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#include "wx/wxprec.h"
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#include "wx/dcscreen.h"
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#include "wx/osx/dcscreen.h"
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#include "wx/osx/private.h"
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#include "wx/graphics.h"
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#if wxOSX_USE_COCOA_OR_CARBON
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#include "wx/osx/private/glgrab.h"
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#endif
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IMPLEMENT_ABSTRACT_CLASS(wxScreenDCImpl, wxWindowDCImpl)
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// TODO : for the Screenshot use case, which doesn't work in Quartz
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// we should do a GetAsBitmap using something like
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// http://www.cocoabuilder.com/archive/message/cocoa/2005/8/13/144256
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// Create a DC representing the whole screen
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wxScreenDCImpl::wxScreenDCImpl( wxDC *owner ) :
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wxWindowDCImpl( owner )
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{
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#if wxOSX_USE_COCOA_OR_IPHONE
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m_graphicContext = NULL;
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m_ok = false ;
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#else
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CGRect cgbounds ;
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cgbounds = CGDisplayBounds(CGMainDisplayID());
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Rect bounds;
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bounds.top = (short)cgbounds.origin.y;
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bounds.left = (short)cgbounds.origin.x;
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bounds.bottom = bounds.top + (short)cgbounds.size.height;
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bounds.right = bounds.left + (short)cgbounds.size.width;
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WindowAttributes overlayAttributes = kWindowIgnoreClicksAttribute;
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CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, (WindowRef*) &m_overlayWindow );
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ShowWindow((WindowRef)m_overlayWindow);
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SetGraphicsContext( wxGraphicsContext::CreateFromNativeWindow( m_overlayWindow ) );
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m_width = (wxCoord)cgbounds.size.width;
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m_height = (wxCoord)cgbounds.size.height;
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m_ok = true ;
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#endif
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}
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wxScreenDCImpl::~wxScreenDCImpl()
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{
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delete m_graphicContext;
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m_graphicContext = NULL;
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#if wxOSX_USE_COCOA_OR_IPHONE
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#else
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DisposeWindow((WindowRef) m_overlayWindow );
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#endif
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}
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// TODO Switch to CGWindowListCreateImage for 10.5 and above
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wxBitmap wxScreenDCImpl::DoGetAsBitmap(const wxRect *subrect) const
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{
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CGRect srcRect = CGRectMake(0, 0, m_width, m_height);
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if (subrect)
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{
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srcRect.origin.x = subrect->GetX();
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srcRect.origin.y = subrect->GetY();
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srcRect.size.width = subrect->GetWidth();
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srcRect.size.height = subrect->GetHeight();
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}
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wxBitmap bmp = wxBitmap(srcRect.size.width, srcRect.size.height, 32);
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#if wxOSX_USE_IPHONE
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#else
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CGContextRef context = (CGContextRef)bmp.GetHBITMAP();
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CGContextSaveGState(context);
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CGContextTranslateCTM( context, 0, m_height );
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CGContextScaleCTM( context, 1, -1 );
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if ( subrect )
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srcRect = CGRectOffset( srcRect, -subrect->x, -subrect->y ) ;
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CGImageRef image = grabViaOpenGL(kCGNullDirectDisplay, srcRect);
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wxASSERT_MSG(image, wxT("wxScreenDC::GetAsBitmap - unable to get screenshot."));
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CGContextDrawImage(context, srcRect, image);
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CGContextRestoreGState(context);
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#endif
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return bmp;
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}
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