X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dc797d8e1b4ef10be4f5c9cd73151406f459706d..fa3d4aaf0fdffa51372d15f17862cb7081687107:/src/common/ctrlcmn.cpp

diff --git a/src/common/ctrlcmn.cpp b/src/common/ctrlcmn.cpp
index 83f789b824..1ded2306b5 100644
--- a/src/common/ctrlcmn.cpp
+++ b/src/common/ctrlcmn.cpp
@@ -158,6 +158,51 @@ wxString wxControlBase::RemoveMnemonics(const wxString& str)
     return wxStripMenuCodes(str, wxStrip_Mnemonics);
 }
 
+/* static */
+int wxControlBase::FindAccelIndex(const wxString& label, wxString *labelOnly)
+{
+    // the character following MNEMONIC_PREFIX is the accelerator for this
+    // control unless it is MNEMONIC_PREFIX too - this allows to insert
+    // literal MNEMONIC_PREFIX chars into the label
+    static const wxChar MNEMONIC_PREFIX = _T('&');
+
+    if ( labelOnly )
+    {
+        labelOnly->Empty();
+        labelOnly->Alloc(label.length());
+    }
+
+    int indexAccel = -1;
+    for ( wxString::const_iterator pc = label.begin(); pc != label.end(); ++pc )
+    {
+        if ( *pc == MNEMONIC_PREFIX )
+        {
+            ++pc; // skip it
+            if ( pc == label.end() )
+                break;
+            else if ( *pc != MNEMONIC_PREFIX )
+            {
+                if ( indexAccel == -1 )
+                {
+                    // remember it (-1 is for MNEMONIC_PREFIX itself
+                    indexAccel = pc - label.begin() - 1;
+                }
+                else
+                {
+                    wxFAIL_MSG(_T("duplicate accel char in control label"));
+                }
+            }
+        }
+
+        if ( labelOnly )
+        {
+            *labelOnly += *pc;
+        }
+    }
+
+    return indexAccel;
+}
+
 wxBorder wxControlBase::GetDefaultBorder() const
 {
     return wxBORDER_THEME;