From 50f9c1377c912e8dc1bb814bd0dc1613ea3fd5fe Mon Sep 17 00:00:00 2001
From: Kevin Ollivier <kevino@theolliviers.com>
Date: Thu, 16 Apr 2009 00:57:35 +0000
Subject: [PATCH] Initial support for Cairo on MSW

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@60190 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 build/bakefiles/common.bkl | 13 +++++++++-
 build/bakefiles/config.bkl |  9 +++++++
 build/bakefiles/files.bkl  |  2 +-
 include/wx/graphics.h      |  3 +++
 include/wx/msw/setup0.h    | 12 +++++++++
 setup.h.in                 |  6 +++++
 src/common/dcgraph.cpp     | 10 +++++++-
 src/generic/graphicc.cpp   | 50 ++++++++++++++++++++++++++++++++++++--
 version-script.in          |  1 +
 9 files changed, 101 insertions(+), 5 deletions(-)

diff --git a/build/bakefiles/common.bkl b/build/bakefiles/common.bkl
index f43c88e3e8..ada6c31a11 100644
--- a/build/bakefiles/common.bkl
+++ b/build/bakefiles/common.bkl
@@ -281,7 +281,15 @@
     <set var="UNICOWS_LIB">
         <if cond="MSLU=='1'">unicows</if>
     </set>
-
+    <set var="CAIRO_LIB">
+        <if cond="USE_CAIRO=='1'">cairo</if>
+    </set>
+    <set var="CAIRO_LIBDIR">
+        <if cond="USE_CAIRO=='1'">$(DOLLAR)(CAIRO_ROOT)/lib</if>
+    </set>
+    <set var="CAIRO_INCLUDEDIR">
+        <if cond="USE_CAIRO=='1'">$(DOLLAR)(CAIRO_ROOT)/include/cairo</if>
+    </set>
     <if cond="FORMAT!='autoconf'">
         <set var="GDIPLUS_LIB">
             <if cond="USE_GDIPLUS=='1'">gdiplus</if>
@@ -485,6 +493,7 @@ $(TAB)$(VC_COMPILER) /EP /nologo "$(DOLLAR)(InputPath)" > "$(SETUPHDIR)\wx\msw\r
         <if cond="FORMAT!='autoconf'"><define>$(GFXCTX_DEFINE)</define></if>
         <include cond="FORMAT!='autoconf'">$(SETUPHDIR)</include>
         <include cond="FORMAT!='autoconf'">$(TOP_SRCDIR)include</include>
+        <include cond="FORMAT!='autoconf'">$(CAIRO_INCLUDEDIR)</include>
         <lib-path>$(LIBDIRNAME)</lib-path>
         <if cond="TOOLKIT=='MGL' and FORMAT=='watcom'">
             <lib-path>$(MGLLIBPATH)</lib-path>
@@ -530,6 +539,8 @@ $(TAB)$(VC_COMPILER) /EP /nologo "$(DOLLAR)(InputPath)" > "$(SETUPHDIR)\wx\msw\r
         <if cond="FORMAT!='autoconf' and PLATFORM_WIN32=='1'">
             <sys-lib>$(UNICOWS_LIB)</sys-lib>
             <sys-lib>$(GDIPLUS_LIB)</sys-lib>
+            <sys-lib>$(CAIRO_LIB)</sys-lib>
+            <lib-path>$(CAIRO_LIBDIR)</lib-path>
             <if cond="FORMAT=='borland'">
                 <sys-lib>ole2w32</sys-lib>
             </if>
diff --git a/build/bakefiles/config.bkl b/build/bakefiles/config.bkl
index b74c566af8..59171c055f 100644
--- a/build/bakefiles/config.bkl
+++ b/build/bakefiles/config.bkl
@@ -266,6 +266,14 @@ Acts according to BUILD by default.
         </description>
     </option>
 
+    <option name="USE_CAIRO">
+        <values>0,1</values>
+        <default-value>0</default-value>
+        <description>
+            Enable wxCairoContext for platforms other than Linux/GTK.
+        </description>
+    </option>
+
     <if cond="FORMAT!='autoconf'">
         <option name="USE_GDIPLUS">
             <values>0,1</values>
@@ -453,6 +461,7 @@ Set the version of your Mingw installation here.
         <set var="USE_EXCEPTIONS">1</set>
         <set var="USE_RTTI">1</set>
         <set var="USE_THREADS">1</set>
+        <set var="USE_CAIRO">0</set>
         <if cond="FORMAT!='autoconf'"><set var="USE_GDIPLUS">0</set></if>
         <set var="DEBUG_INFO">$(DEBUG_INFO_DEFAULT)</set>
         <set var="DEBUG_FLAG">default</set>
diff --git a/build/bakefiles/files.bkl b/build/bakefiles/files.bkl
index 760d22dd8e..c3585908f8 100644
--- a/build/bakefiles/files.bkl
+++ b/build/bakefiles/files.bkl
@@ -666,6 +666,7 @@ IMPORTANT: please read docs/tech/tn0016.txt before modifying this file!
     src/generic/dragimgg.cpp
     src/generic/filepickerg.cpp
     src/generic/fontpickerg.cpp
+    src/generic/graphicc.cpp
     src/generic/listbkg.cpp
     src/generic/logg.cpp
     src/generic/numdlgg.cpp
@@ -980,7 +981,6 @@ IMPORTANT: please read docs/tech/tn0016.txt before modifying this file!
     src/generic/dirdlgg.cpp
     src/generic/fdrepdlg.cpp
     src/generic/filedlgg.cpp
-    src/generic/graphicc.cpp
     src/generic/listctrl.cpp
     src/generic/msgdlgg.cpp
     src/generic/prntdlgg.cpp
diff --git a/include/wx/graphics.h b/include/wx/graphics.h
index 7da62bb778..b9ff354c82 100755
--- a/include/wx/graphics.h
+++ b/include/wx/graphics.h
@@ -676,6 +676,9 @@ public :
 
     static wxGraphicsRenderer* GetDefaultRenderer();
 
+#if wxABI_VERSION >= 20811
+    static wxGraphicsRenderer* GetCairoRenderer();
+#endif
     // Context
 
     virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc) = 0 ;
diff --git a/include/wx/msw/setup0.h b/include/wx/msw/setup0.h
index 7ac1b7192d..dd0d78d65d 100644
--- a/include/wx/msw/setup0.h
+++ b/include/wx/msw/setup0.h
@@ -579,6 +579,18 @@
 #define wxUSE_GRAPHICS_CONTEXT 0
 #endif
 
+// Enable the new wxCairoContext classes for an advanced
+// 2D drawing API.  (Still somewhat experimental)
+//
+// Please note that you will need to link with Cairo for this to work.
+//
+// Default is 0
+//
+// Recommended setting: 1
+#ifndef wxUSE_CAIRO
+#define wxUSE_CAIRO 0
+#endif
+
 // ----------------------------------------------------------------------------
 // Individual GUI controls
 // ----------------------------------------------------------------------------
diff --git a/setup.h.in b/setup.h.in
index 55a6fd1db5..230e2226b0 100644
--- a/setup.h.in
+++ b/setup.h.in
@@ -552,6 +552,12 @@
 #define wxUSE_RICHEDIT2 0
 #endif
 
+#if !defined(__WIN32__)
+#define wxUSE_CAIRO 1
+#else
+#define wxUSE_CAIRO 0
+#endif
+
 #define wxUSE_INKEDIT 0
 
 #define wxUSE_UNICODE_MSLU 0
diff --git a/src/common/dcgraph.cpp b/src/common/dcgraph.cpp
index 95c750178b..cac2d83944 100644
--- a/src/common/dcgraph.cpp
+++ b/src/common/dcgraph.cpp
@@ -79,7 +79,15 @@ void wxGCDC::SetGraphicsContext( wxGraphicsContext* ctx )
 wxGCDC::wxGCDC(const wxWindowDC& dc)
 {
     Init();
-    SetGraphicsContext( wxGraphicsContext::Create(dc) );
+    wxGraphicsContext* context;
+#if wxUSE_CAIRO
+    wxGraphicsRenderer* renderer = wxGraphicsRenderer::GetCairoRenderer();
+    context = renderer->CreateContext(dc);
+#else
+    context = wxGraphicsContext::Create(dc);
+#endif
+
+    SetGraphicsContext( context );
 }
 
 #ifdef __WXMSW__
diff --git a/src/generic/graphicc.cpp b/src/generic/graphicc.cpp
index 7ac7d56f82..d15e269505 100644
--- a/src/generic/graphicc.cpp
+++ b/src/generic/graphicc.cpp
@@ -39,7 +39,7 @@
 #include "wx/graphics.h"
 #include "wx/rawbmp.h"
 
-#if wxUSE_GRAPHICS_CONTEXT
+#if wxUSE_GRAPHICS_CONTEXT && wxUSE_CAIRO
 
 #include <vector>
 
@@ -100,6 +100,10 @@ static inline double RadToDeg(double deg)
 #endif
 
 #include <cairo.h>
+#ifdef __WXMSW__
+#include <cairo-win32.h>
+#endif
+
 #ifdef __WXGTK__
 #include <gtk/gtk.h>
 #endif
@@ -324,6 +328,9 @@ class WXDLLIMPEXP_CORE wxCairoContext : public wxGraphicsContext
 
 public:
     wxCairoContext( wxGraphicsRenderer* renderer, const wxWindowDC& dc );
+#ifdef __WXMSW__
+    wxCairoContext( wxGraphicsRenderer* renderer, HDC context );
+#endif
 #ifdef __WXGTK__
     wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawable );
 #endif
@@ -371,6 +378,9 @@ public:
 
 private:
     cairo_t* m_context;
+#ifdef __WXMSW__
+    cairo_surface_t* m_mswSurface;
+#endif
 };
 
 //-----------------------------------------------------------------------------
@@ -1087,6 +1097,18 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, GdkDrawable *drawa
 }
 #endif
 
+#ifdef __WXMSW__
+wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, HDC handle )
+: wxGraphicsContext(renderer)
+{
+    m_mswSurface = cairo_win32_surface_create(handle);
+    m_context = cairo_create(m_mswSurface);
+    PushState();
+    PushState();
+}
+#endif
+
+
 wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, cairo_t *context )
 : wxGraphicsContext(renderer)
 {
@@ -1117,6 +1139,10 @@ wxCairoContext::wxCairoContext( wxGraphicsRenderer* renderer, wxWindow *window)
     GtkPizza *pizza = GTK_PIZZA( widget );
     GdkDrawable* drawable = pizza->bin_window;
     m_context = gdk_cairo_create( drawable ) ;
+#endif
+#ifdef __WXMSW__
+    m_mswSurface = cairo_win32_surface_create((HDC)window->GetHandle());
+    m_context = cairo_create(m_mswSurface);
 #endif
     PushState();
     PushState();
@@ -1130,6 +1156,10 @@ wxCairoContext::~wxCairoContext()
         PopState();
         cairo_destroy(m_context);
     }
+#ifdef __WXMSW__
+    if ( m_mswSurface )
+        cairo_surface_destroy(m_mswSurface);
+#endif
 }
 
 
@@ -1449,7 +1479,12 @@ wxGraphicsContext * wxCairoRenderer::CreateContext( const wxMemoryDC& dc)
 
 wxGraphicsContext * wxCairoRenderer::CreateContextFromNativeContext( void * context )
 {
+#if __WXMSW__
+    return new wxCairoContext(this,(HDC)context);
+#endif
+#if __WXGTK__
     return new wxCairoContext(this,(cairo_t*)context);
+#endif
 }
 
 
@@ -1571,4 +1606,15 @@ wxGraphicsBitmap wxGraphicsRenderer::CreateBitmap( const wxBitmap& bmp )
         return wxNullGraphicsBitmap;
 }
 
-#endif  // wxUSE_GRAPHICS_CONTEXT
+#endif  // wxUSE_GRAPHICS_CONTEXT && wxUSE_CAIRO
+
+#if wxUSE_GRAPHICS_CONTEXT
+wxGraphicsRenderer* wxGraphicsRenderer::GetCairoRenderer()
+{
+#if wxUSE_CAIRO
+    return &gs_cairoGraphicsRenderer;
+#else
+    return NULL;
+#endif
+}
+#endif
diff --git a/version-script.in b/version-script.in
index 1f97fee8af..87abd11a2b 100644
--- a/version-script.in
+++ b/version-script.in
@@ -26,6 +26,7 @@
 # public symbols added in 2.8.10 (please keep in alphabetical order):
 @WX_VERSION_TAG@.11 {
         *wxDC*SetDeviceClippingRegion*;
+        *wxGraphicsContext*GetCairoRenderer*;
         *wxShowEvent*IsShown*;
         *wxIconizeEvent*IsIconized*;
         *wxXmlNode*Attribute*;