No changes, just factor our wxDirection parsing code in wxXRC.

Move it from wxButtonXmlHandler into a reusable wxXmlResourceHandler::
GetDirection() that can used by the other handlers too.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68839 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/xrc/xmlres.h

@@ -558,6 +558,9 @@ protected:
     wxCoord GetDimension(const wxString& param, wxCoord defaultv = 0,
                          wxWindow *windowToUse = NULL);
 
+    // Gets a direction, complains if the value is invalid.
+    wxDirection GetDirection(const wxString& param, wxDirection dir = wxLEFT);
+
     // Gets a bitmap.
     wxBitmap GetBitmap(const wxString& param = wxT("bitmap"),
                        const wxArtClient& defaultArtClient = wxART_OTHER,

interface/wx/xrc/xmlres.h

@@ -553,6 +553,18 @@ protected:
     wxCoord GetDimension(const wxString& param, wxCoord defaultv = 0,
                          wxWindow* windowToUse = 0);
 
+    /**
+        Gets a direction.
+
+        If the given @a param is not present or has empty value, @a dir is
+        returned by default. Otherwise the value of the parameter is parsed and
+        a warning is generated if it's not one of @c wxLEFT, @c wxTOP, @c
+        wxRIGHT or @c wxBOTTOM.
+
+        @since 2.9.3
+     */
+    wxDirection GetDirection(const wxString& param, wxDirection dir = wxLEFT);
+
     /**
         Gets a font.
     */

src/xrc/xh_bttn.cpp

@@ -53,33 +53,8 @@ wxObject *wxButtonXmlHandler::DoCreateResource()
 
     if ( GetParamNode("bitmap") )
     {
-        wxDirection dir;
-        const wxString dirstr = GetParamValue("bitmapposition");
-        if ( dirstr.empty() || dirstr == "wxLEFT" )
-            dir = wxLEFT;
-        else if ( dirstr == "wxRIGHT" )
-            dir = wxRIGHT;
-        else if ( dirstr == "wxTOP" )
-            dir = wxTOP;
-        else if ( dirstr == "wxBOTTOM" )
-            dir = wxBOTTOM;
-        else
-        {
-            ReportError
-            (
-                GetParamNode("bitmapposition"),
-                wxString::Format
-                (
-                    "Invalid bitmap position \"%s\": must be one of "
-                    "wxLEFT|wxRIGHT|wxTOP|wxBOTTOM.",
-                    dirstr
-                )
-            );
-
-            dir = wxLEFT;
-        }
-
-        button->SetBitmap(GetBitmap("bitmap", wxART_BUTTON), dir);
+        button->SetBitmap(GetBitmap("bitmap", wxART_BUTTON),
+                          GetDirection("bitmapposition"));
     }
 
     SetupWindow(button);

src/xrc/xmlres.cpp

@@ -2150,6 +2150,40 @@ wxCoord wxXmlResourceHandler::GetDimension(const wxString& param,
     return sx;
 }
 
+wxDirection
+wxXmlResourceHandler::GetDirection(const wxString& param, wxDirection dirDefault)
+{
+    wxDirection dir;
+
+    const wxString dirstr = GetParamValue(param);
+    if ( dirstr.empty() )
+        dir = dirDefault;
+    else if ( dirstr == "wxLEFT" )
+        dir = wxLEFT;
+    else if ( dirstr == "wxRIGHT" )
+        dir = wxRIGHT;
+    else if ( dirstr == "wxTOP" )
+        dir = wxTOP;
+    else if ( dirstr == "wxBOTTOM" )
+        dir = wxBOTTOM;
+    else
+    {
+        ReportError
+        (
+            GetParamNode(param),
+            wxString::Format
+            (
+                "Invalid direction \"%s\": must be one of "
+                "wxLEFT|wxRIGHT|wxTOP|wxBOTTOM.",
+                dirstr
+            )
+        );
+
+        dir = dirDefault;
+    }
+
+    return dir;
+}
 
 // Get system font index using indexname
 static wxFont GetSystemFont(const wxString& name)