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Added wxGraphicsContext::Create(const wxEnhMetaFileDC& dc) so that wxPrintPreview can work with wxMSW's wxGraphicsContext (closes #12028)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64297 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Jaakko Salli
2010-05-13 08:22:36 +00:00
parent f19f8180a5
commit 8371a35340
4 changed files with 32 additions and 0 deletions
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7
include/wx/graphics.h
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@@ -57,6 +57,7 @@ class WXDLLIMPEXP_FWD_CORE wxWindowDC;
class WXDLLIMPEXP_FWD_CORE wxMemoryDC;
#if wxUSE_PRINTING_ARCHITECTURE
class WXDLLIMPEXP_FWD_CORE wxPrinterDC;
class WXDLLIMPEXP_FWD_CORE wxEnhMetaFileDC;
#endif
class WXDLLIMPEXP_FWD_CORE wxGraphicsContext;
class WXDLLIMPEXP_FWD_CORE wxGraphicsPath;
@@ -392,7 +393,10 @@ public:
static wxGraphicsContext * Create( const wxMemoryDC& dc);
#if wxUSE_PRINTING_ARCHITECTURE
static wxGraphicsContext * Create( const wxPrinterDC& dc);
#ifdef __WXMSW__
static wxGraphicsContext * Create( const wxEnhMetaFileDC& dc);
#endif
#endif // wxUSE_PRINTING_ARCHITECTURE
static wxGraphicsContext* CreateFromNative( void * context );
@@ -710,7 +714,10 @@ public:
virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc) = 0;
#if wxUSE_PRINTING_ARCHITECTURE
virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc) = 0;
#ifdef __WXMSW__
virtual wxGraphicsContext * CreateContext( const wxEnhMetaFileDC& dc) = 0;
#endif
#endif // wxUSE_PRINTING_ARCHITECTURE
virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ) = 0;

6
samples/printing/printing.cpp
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@@ -230,6 +230,12 @@ void MyApp::Draw(wxDC&dc)
if (window_dc)
gc = wxGraphicsContext::Create( *window_dc );
#ifdef __WXMSW__
wxEnhMetaFileDC *emf_dc = wxDynamicCast( &dc, wxEnhMetaFileDC );
if (emf_dc)
gc = wxGraphicsContext::Create( *emf_dc );
#endif
if (gc)
{
// make a path that contains a circle and some lines, centered at 100,100

8
src/common/graphcmn.cpp
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@@ -870,8 +870,16 @@ wxGraphicsBitmap wxGraphicsContext::CreateSubBitmap( const wxGraphicsBitmap &bmp
{
return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
}
#ifdef __WXMSW__
/* static */ wxGraphicsContext* wxGraphicsContext::Create( const wxEnhMetaFileDC& dc)
{
return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
}
#endif
#endif // wxUSE_PRINTING_ARCHITECTURE
wxGraphicsContext* wxGraphicsContext::CreateFromNative( void * context )
{
return wxGraphicsRenderer::GetDefaultRenderer()->CreateContextFromNativeContext(context);

11
src/msw/graphics.cpp
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@@ -40,6 +40,7 @@
#include "wx/private/graphics.h"
#include "wx/msw/wrapgdip.h"
#include "wx/msw/dc.h"
#include "wx/msw/enhmeta.h"
#include "wx/dcgraph.h"
#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
@@ -1631,6 +1632,8 @@ public :
virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
virtual wxGraphicsContext * CreateContext( const wxEnhMetaFileDC& dc);
virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
@@ -1763,6 +1766,14 @@ wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxPrinterDC& dc)
return new wxGDIPlusContext(this,(HDC) msw->GetHDC(), sz.x, sz.y);
}
wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxEnhMetaFileDC& dc)
{
ENSURE_LOADED_OR_RETURN(NULL);
wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
wxSize sz = dc.GetSize();
return new wxGDIPlusContext(this,(HDC) msw->GetHDC(), sz.x, sz.y);
}
wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxMemoryDC& dc)
{
ENSURE_LOADED_OR_RETURN(NULL);