X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dbda9e86f0e5ec1184bc16d135bb7205bc99236e..8a0d4cf6c5e9fe357ca3e873b81c0fda10e4b217:/src/common/string.cpp

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 3ba5ee9ab5..37a116fa02 100644
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -10,7 +10,7 @@
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
-#pragma implementation "string.h"
+  #pragma implementation "string.h"
 #endif
 
 /*
@@ -28,7 +28,7 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+  #pragma hdrstop
 #endif
 
 #ifndef WX_PRECOMP
@@ -42,7 +42,7 @@
 #include <stdlib.h>
 
 #ifdef __SALFORDC__
-#include <clib.h>
+  #include <clib.h>
 #endif
 
 #if wxUSE_WCSRTOMBS
@@ -116,6 +116,8 @@ extern const char WXDLLEXPORT *g_szNul = &g_strEmpty.dummy;
  	// No warning
 #elif defined(__SUNCC__)
     // nothing -- I don't know about "#warning" for Sun's CC
+#elif defined(__DECCXX)
+   // nothing
 #else
     // change this to some analogue of '#warning' for your compiler
     #error "Using sprintf() because no snprintf()-like function defined"
@@ -1448,10 +1450,79 @@ void wxArrayString::Remove(const char *sz)
   Remove(iIndex);
 }
 
+// ----------------------------------------------------------------------------
+// sorting
+// ----------------------------------------------------------------------------
+
+// we can only sort one array at a time with the quick-sort based
+// implementation
+#if wxUSE_THREADS
+  #include <wx/thread.h>
+
+  // need a critical section to protect access to gs_compareFunction and
+  // gs_sortAscending variables
+  static wxCriticalSection gs_critsectStringSort;
+
+  // call this before the value of the global sort vars is changed/after
+  // you're finished with them
+  #define START_SORT()     gs_critsectStringSort.Enter()
+  #define END_SORT()       gs_critsectStringSort.Leave()
+#else // !threads
+  #define START_SORT()
+  #define END_SORT()
+#endif // wxUSE_THREADS
+
+// function to use for string comparaison
+static wxArrayString::CompareFunction gs_compareFunction = NULL;
+
+// if we don't use the compare function, this flag tells us if we sort the
+// array in ascending or descending order
+static bool gs_sortAscending = TRUE;
+
+// function which is called by quick sort
+static int wxStringCompareFunction(const void *first, const void *second)
+{
+  wxString *strFirst = (wxString *)first;
+  wxString *strSecond = (wxString *)second;
+
+  if ( gs_compareFunction ) {
+    return gs_compareFunction(*strFirst, *strSecond);
+  }
+  else {
+    int result = strcmp(strFirst->c_str(), strSecond->c_str());
+
+    return gs_sortAscending ? result : -result;
+  }
+}
+
 // sort array elements using passed comparaison function
+void wxArrayString::Sort(CompareFunction compareFunction)
+{
+  START_SORT();
+
+  wxASSERT( !gs_compareFunction );  // must have been reset to NULL
+  gs_compareFunction = compareFunction;
+
+  DoSort();
+
+  END_SORT();
+}
+
+void wxArrayString::Sort(bool reverseOrder)
+{
+  START_SORT();
+
+  wxASSERT( !gs_compareFunction );  // must have been reset to NULL
+  gs_sortAscending = !reverseOrder;
+
+  DoSort();
+
+  END_SORT();
+}
 
-void wxArrayString::Sort(bool WXUNUSED(bCase), bool WXUNUSED(bReverse) )
+void wxArrayString::DoSort()
 {
-  //@@@@ TO DO
-  //qsort(m_pItems, m_nCount, sizeof(char *), fCmp);
+  // just sort the pointers using qsort() - of course it only works because
+  // wxString() *is* a pointer to its data
+  qsort(m_pItems, m_nCount, sizeof(char *), wxStringCompareFunction);
 }