changed wxSystemSettings::HasFrameDecorations to more general GetCapability(index)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12222 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/settings.h

@@ -36,8 +36,8 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int         GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool        HasFrameDecorations() { return TRUE; }
+    // Return true if the port has certain feature
+    static bool        GetCapability(int index);
 };
 
 #endif

include/wx/gtk1/settings.h

@@ -36,8 +36,8 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int         GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool        HasFrameDecorations() { return TRUE; }
+    // Return true if the port has certain feature
+    static bool        GetCapability(int index);
 };
 
 #endif

include/wx/mac/settings.h

@@ -128,8 +128,9 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int         GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool        HasFrameDecorations() { return TRUE; }
+    // Return true if the port has certain feature
+    static bool        GetCapability(int index);
+
 };
 
 #endif

include/wx/mgl/settings.h

@@ -37,8 +37,8 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int GetSystemMetric(int index);
     
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool HasFrameDecorations() { return FALSE; }
+    // Return true if the port has certain feature
+    static bool GetCapability(int index);
 };
 
 #endif

include/wx/motif/settings.h

@@ -37,8 +37,9 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int         GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool        HasFrameDecorations() { return TRUE; }
+    // Return true if the port has certain feature
+    static bool        GetCapability(int index);
+
 };
 
 #endif

include/wx/msw/settings.h

@@ -33,9 +33,8 @@ public:
     // Get a system metric, e.g. scrollbar size
     static int GetSystemMetric(int index);
 
-    // Return true if the port can draw frame titlebar (i.e. doesn't need wxUniv for it)
-    static bool HasFrameDecorations() { return TRUE; }
-
+    // Return true if the port has certain feature
+    static bool GetCapability(int index);
 };
 
 #endif

include/wx/os2/settings.h

@@ -24,7 +24,7 @@ public:
     static wxColour    GetSystemColour(int index);
     static wxFont      GetSystemFont(int index);
     static int         GetSystemMetric(int index);
-    static bool        HasFrameDecorations() { return TRUE; }
+    static bool        GetCapability(int index);
 }; // end of CLASS wxSystemSettings
 
 #endif

include/wx/settings.h

@@ -106,6 +106,10 @@
 #define wxSYS_SHOW_SOUNDS             36
 #define wxSYS_SWAP_BUTTONS            37
 
+// Platform capabilities
+#define wxSYS_CAN_DRAW_FRAME_DECORATIONS  1
+#define wxSYS_CAN_ICONIZE_FRAME           2
+
 #if defined(__WXMSW__)
 #include "wx/msw/settings.h"
 #elif defined(__WXMOTIF__)