check for self-assignment in operator=

[wxWidgets.git] / include / wx / cairo.h

diff --git a/include/wx/cairo.h b/include/wx/cairo.h
index 644050bb5385bd0e2a747bd0e3654ca27b2087b2..a6041f2418da8bc317cfa6f6775c4fd04016566c 100644 (file)
--- a/include/wx/cairo.h
+++ b/include/wx/cairo.h
@@ -11,9 +11,13 @@
 #ifndef _WX_CAIRO_H_BASE_
 #define _WX_CAIRO_H_BASE_
 
 #ifndef _WX_CAIRO_H_BASE_
 #define _WX_CAIRO_H_BASE_
 

- // for now GTK+ only
-#ifdef __WXGTK210__
-  #define wxUSE_CAIRO  1
+// for now GTK+ only
+#ifndef wxUSE_CAIRO
+    #ifdef __WXGTK210__
+        #define wxUSE_CAIRO 1
+    #else
+        #define wxUSE_CAIRO 0
+    #endif

 #endif
 
 #if wxUSE_CAIRO
 #endif
 
 #if wxUSE_CAIRO


@@ -25,21 +29,31 @@
 class wxCairoLibrary
 {
 public:
 class wxCairoLibrary
 {
 public:

-    static wxCairoLibrary* Get();
+    // return the pointer to the global instance of this class or NULL if we
+    // failed to load/initialize it
+    static wxCairoLibrary *Get();
+
+
+    // for internal use only

     static void CleanUp();
 
 private:
     static void CleanUp();
 
 private:

+    // the single wxCairoLibrary instance or NULL
+    static wxCairoLibrary *ms_lib;
+

     wxCairoLibrary();
     ~wxCairoLibrary();
     
     bool IsOk();
     wxCairoLibrary();
     ~wxCairoLibrary();
     
     bool IsOk();

-    void InitializeMethods();
+    bool InitializeMethods();

 
 

-    bool              m_ok;
-    wxDynamicLibrary *m_cairo_lib;
-    wxDynamicLibrary *m_pango_cairo_lib;
+    wxDynamicLibrary m_libCairo;
+    wxDynamicLibrary m_libPangoCairo;

     
     

-    static wxCairoLibrary *s_lib;
+    // true if we successfully loaded the libraries and can use them
+    //
+    // note that this field must have this name as it's used by wxDL_XXX macros
+    bool m_ok;

 
 public:
     wxDL_VOIDMETHOD_DEFINE( cairo_arc,
 
 public:
     wxDL_VOIDMETHOD_DEFINE( cairo_arc,


@@ -88,32 +102,34 @@ public:
         (cairo_pattern_t *pattern, cairo_filter_t filter), (pattern, filter) )
     wxDL_VOIDMETHOD_DEFINE( cairo_rectangle,
         (cairo_t *cr, double x, double y, double width, double height), (cr, x, y, width, height) )
         (cairo_pattern_t *pattern, cairo_filter_t filter), (pattern, filter) )
     wxDL_VOIDMETHOD_DEFINE( cairo_rectangle,
         (cairo_t *cr, double x, double y, double width, double height), (cr, x, y, width, height) )

-    wxDL_METHOD_DEFINE( void, cairo_reset_clip,
-        (cairo_t *cr), (cr), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_restore,
-        (cairo_t *cr), (cr), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_rotate,
-        (cairo_t *cr, double angle), (cr, angle), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_save,
-        (cairo_t *cr), (cr), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_scale,
-        (cairo_t *cr, double sx, double sy), (cr, sx, sy), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_set_dash,
-        (cairo_t *cr, const double *dashes, int num_dashes, double offset), (cr, dashes, num_dashes, offset), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_set_fill_rule,
-        (cairo_t *cr, cairo_fill_rule_t fill_rule), (cr, fill_rule), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_set_line_cap,
-        (cairo_t *cr, cairo_line_cap_t line_cap), (cr, line_cap), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_set_line_join,
-        (cairo_t *cr, cairo_line_join_t line_join), (cr, line_join), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_set_line_width,
-        (cairo_t *cr, double width), (cr, width), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_set_operator,
-        (cairo_t *cr, cairo_operator_t op), (cr, op), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_set_source,
-        (cairo_t *cr, cairo_pattern_t *source), (cr, source), /**/)
-    wxDL_METHOD_DEFINE( void, cairo_set_source_rgba,
-        (cairo_t *cr, double red, double green, double blue, double alpha), (cr, red, green, blue, alpha), /**/)
+    wxDL_METHOD_DEFINE( cairo_t*, cairo_reference,
+        (cairo_t *cr), (cr), NULL )
+    wxDL_VOIDMETHOD_DEFINE( cairo_reset_clip,
+        (cairo_t *cr), (cr) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_restore,
+        (cairo_t *cr), (cr) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_rotate,
+        (cairo_t *cr, double angle), (cr, angle) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_save,
+        (cairo_t *cr), (cr) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_scale,
+        (cairo_t *cr, double sx, double sy), (cr, sx, sy) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_set_dash,
+        (cairo_t *cr, const double *dashes, int num_dashes, double offset), (cr, dashes, num_dashes, offset) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_set_fill_rule,
+        (cairo_t *cr, cairo_fill_rule_t fill_rule), (cr, fill_rule) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_set_line_cap,
+        (cairo_t *cr, cairo_line_cap_t line_cap), (cr, line_cap) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_set_line_join,
+        (cairo_t *cr, cairo_line_join_t line_join), (cr, line_join) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_set_line_width,
+        (cairo_t *cr, double width), (cr, width) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_set_operator,
+        (cairo_t *cr, cairo_operator_t op), (cr, op) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_set_source,
+        (cairo_t *cr, cairo_pattern_t *source), (cr, source) )
+    wxDL_VOIDMETHOD_DEFINE( cairo_set_source_rgba,
+        (cairo_t *cr, double red, double green, double blue, double alpha), (cr, red, green, blue, alpha) )

     wxDL_VOIDMETHOD_DEFINE( cairo_stroke,
         (cairo_t *cr), (cr) )
     wxDL_VOIDMETHOD_DEFINE( cairo_stroke_preserve,
     wxDL_VOIDMETHOD_DEFINE( cairo_stroke,
         (cairo_t *cr), (cr) )
     wxDL_VOIDMETHOD_DEFINE( cairo_stroke_preserve,


@@ -130,11 +146,9 @@ public:
     wxDL_VOIDMETHOD_DEFINE( pango_cairo_show_layout,
         (cairo_t *cr, PangoLayout *layout), (cr, layout) )
 
     wxDL_VOIDMETHOD_DEFINE( pango_cairo_show_layout,
         (cairo_t *cr, PangoLayout *layout), (cr, layout) )
 

-    DECLARE_NO_COPY_CLASS(wxCairoLibrary)
+    wxDECLARE_NO_COPY_CLASS(wxCairoLibrary);

 };
 
 };
 

-#endif
- // wxUSE_CAIRO
+#endif // wxUSE_CAIRO

 
 

-#endif
-  // _WX_CAIRO_H_BASE_
+#endif // _WX_CAIRO_H_BASE_