fixed incorrect GetTextExtent for wxTELETYPE font

[wxWidgets.git] / src / common / dynlib.cpp

diff --git a/src/common/dynlib.cpp b/src/common/dynlib.cpp
index 26844dfc0560bf799d94a7fb0abd5c4486c17e91..3aa8cc8758618e03840a2f0bb3b766f6ca2986a1 100644 (file)
--- a/src/common/dynlib.cpp
+++ b/src/common/dynlib.cpp
@@ -29,6 +29,10 @@
 
 #if wxUSE_DYNLIB_CLASS
 
+#if defined(__WINDOWS__)
+    #include "wx/msw/private.h"
+#endif
+
 #include "wx/dynlib.h"
 #include "wx/filefn.h"
 #include "wx/intl.h"
@@ -39,9 +43,15 @@
 // conditional compilation
 // ----------------------------------------------------------------------------
 
-#if defined(HAVE_DLOPEN)
+#if defined(__WXPM__) || defined(__EMX__)
+#  define INCL_DOS
+#  include <os2.h>
+#  define wxDllOpen(error, lib, handle)     DosLoadModule(error, sizeof(error), lib, &handle)
+#  define wxDllGetSymbol(handle, modaddr)   DosQueryProcAddr(handle, 1L, NULL, (PFN*)modaddr)
+#  define wxDllClose(handle)                DosFreeModule(handle)
+#elif defined(HAVE_DLOPEN)
 #   define wxDllOpen(lib)                dlopen(lib.fn_str(), RTLD_NOW/*RTLD_LAZY*/)
-#   define wxDllGetSymbol(handle, name)  dlsym(handle, name.mb_str())
+#   define wxDllGetSymbol(handle, name)  dlsym(handle, name)
 #   define wxDllClose                    dlclose
 #elif defined(HAVE_SHL_LOAD)
 #   define wxDllOpen(lib)                shl_load(lib.fn_str(), BIND_DEFERRED, 0)
@@ -56,11 +66,13 @@
             return (void *)0;
     }
 #elif defined(__WINDOWS__)
-#   include <windows.h>
-
     // using LoadLibraryEx under Win32 to avoid name clash with LoadLibrary
 #   ifdef __WIN32__
-#      define wxDllOpen(lib)                  ::LoadLibraryEx(lib, 0, 0)
+#ifdef _UNICODE
+#      define wxDllOpen(lib)                  ::LoadLibraryExW(lib, 0, 0)
+#else
+#      define wxDllOpen(lib)                  ::LoadLibraryExA(lib, 0, 0)
+#endif
 #   else   // Win16
 #      define wxDllOpen(lib)                  ::LoadLibrary(lib)
 #   endif  // Win32/16
@@ -76,34 +88,20 @@
 
 wxLibraries wxTheLibraries;
 
-// ----------------------------------------------------------------------------
-// private functions
-// ----------------------------------------------------------------------------
+// ============================================================================
+// implementation
+// ============================================================================
 
 // construct the full name from the base shared object name: adds a .dll
 // suffix under Windows or .so under Unix
 static wxString ConstructLibraryName(const wxString& basename)
 {
-    wxString fullname(basename);
-
-#if defined(__UNIX__)
-#   if defined(__HPUX__)
-        fullname << ".sl";
-#   else       //__HPUX__
-        fullname << ".so";
-#   endif      //__HPUX__
-#elif defined(__WINDOWS__)
-    fullname << ".dll";
-#endif
+    wxString fullname;
+    fullname << basename << wxDllLoader::GetDllExt();
 
     return fullname;
 }
 
-// ============================================================================
-// implementation
-// ============================================================================
-
-
 // ---------------------------------------------------------------------------
 // wxLibrary (one instance per dynamic library)
 // ---------------------------------------------------------------------------
@@ -172,16 +170,37 @@ void *wxLibrary::GetSymbol(const wxString& symbname)
 // wxDllLoader
 // ---------------------------------------------------------------------------
 
+/* static */
+wxString wxDllLoader::GetDllExt()
+{
+    wxString ext;
+
+#if defined(__WINDOWS__) || defined(__WXPM__) || defined(__EMX__)
+    ext = _T(".dll");
+#elif defined(__UNIX__)
+#   if defined(__HPUX__)
+        ext = _T(".sl");
+#   else //__HPUX__
+        ext = _T(".so");
+#   endif //__HPUX__
+#endif
+
+    return ext;
+}
+
 /* static */
 wxDllType
 wxDllLoader::GetProgramHandle(void)
 {
-#ifdef __UNIX__
-    return dlopen(NULL, RTLD_NOW/*RTLD_LAZY*/);
+#if defined( HAVE_DLOPEN ) && !defined(__EMX__)
+   // optain handle for main program
+   return dlopen(NULL, RTLD_NOW/*RTLD_LAZY*/); 
+#elif defined (HAVE_SHL_LOAD)
+   // shl_findsymbol with NULL handle looks up in main program
+   return 0; 
 #else
-    wxFAIL_MSG(_("This method is not implemented under Windows"));
-
-    return 0;
+   wxFAIL_MSG( wxT("This method is not implemented under Windows or OS/2"));
+   return 0;
 #endif
 }
 
@@ -193,8 +212,8 @@ wxDllLoader::LoadLibrary(const wxString & libname, bool *success)
 
 #if defined(__WXMAC__)
     FSSpec myFSSpec ;
-    Ptr        myMainAddr ;
-    Str255     myErrName ;
+    Ptr myMainAddr ;
+    Str255 myErrName ;
 
     wxMacPathToFSSpec( libname , &myFSSpec ) ;
     if (GetDiskFragment( &myFSSpec , 0 , kCFragGoesToEOF , "\p" , kPrivateCFragCopy , &handle , &myMainAddr ,
@@ -204,13 +223,42 @@ wxDllLoader::LoadLibrary(const wxString & libname, bool *success)
         wxASSERT_MSG( 1 , (char*)myErrName ) ;
         return NULL ;
     }
+#elif defined(__WXPM__) || defined(__EMX__)
+    char zError[256] = "";
+    wxDllOpen(zError, libname, handle);
 #else // !Mac
     handle = wxDllOpen(libname);
 #endif // OS
 
     if ( !handle )
     {
-        wxLogSysError(_("Failed to load shared library '%s'"), libname.c_str());
+        wxString msg(_("Failed to load shared library '%s'"));
+
+#ifdef HAVE_DLERROR
+        const char *errmsg = dlerror();
+        if ( errmsg )
+        {
+            // the error string format is "libname: ...", but we already have
+            // libname, so cut it off
+            const char *p = strchr(errmsg, ':');
+            if ( p )
+            {
+                if ( *++p == ' ' )
+                    p++;
+            }
+            else
+            {
+                p = errmsg;
+            }
+
+            msg += _T(" (%s)");
+            wxLogError(msg, libname.c_str(), p);
+        }
+        else
+#endif // HAVE_DLERROR
+        {
+            wxLogSysError(msg, libname.c_str());
+        }
     }
 
     if ( success )
@@ -238,15 +286,18 @@ wxDllLoader::GetSymbol(wxDllType dllHandle, const wxString &name)
 #if defined( __WXMAC__ )
     Ptr symAddress ;
     CFragSymbolClass symClass ;
-    Str255     symName ;
+    Str255 symName ;
 
     strcpy( (char*) symName , name ) ;
     c2pstr( (char*) symName ) ;
 
     if ( FindSymbol( dllHandle , symName , &symAddress , &symClass ) == noErr )
         symbol = (void *)symAddress ;
+#elif defined( __WXPM__ ) || defined(__EMX__)
+    wxDllGetSymbol(dllHandle, symbol);
 #else
-    symbol = wxDllGetSymbol(dllHandle, name);
+    // mb_str() is necessary in Unicode build
+    symbol = wxDllGetSymbol(dllHandle, name.mb_str());
 #endif
 
     if ( !symbol )
@@ -261,7 +312,7 @@ wxDllLoader::GetSymbol(wxDllType dllHandle, const wxString &name)
 // wxLibraries (only one instance should normally exist)
 // ---------------------------------------------------------------------------
 
-wxLibraries::wxLibraries()
+wxLibraries::wxLibraries():m_loaded(wxKEY_STRING)
 {
 }
 
@@ -283,9 +334,14 @@ wxLibrary *wxLibraries::LoadLibrary(const wxString& name)
     wxLibrary *lib;
     wxClassInfo *old_sm_first;
 
+#if defined(__VISAGECPP__)
+    node = m_loaded.Find(name.GetData());
+    if (node != NULL)
+        return ((wxLibrary *)node->Data());
+#else // !OS/2
     if ( (node = m_loaded.Find(name.GetData())) )
         return ((wxLibrary *)node->Data());
-
+#endif
     // If DLL shares data, this is necessary.
     old_sm_first = wxClassInfo::sm_first;
     wxClassInfo::sm_first = NULL;
@@ -301,13 +357,13 @@ wxLibrary *wxLibraries::LoadLibrary(const wxString& name)
     wxString libPath("/lib:/usr/lib"); // system path first
     const char *envLibPath = getenv("LD_LIBRARY_PATH");
     if ( envLibPath )
-        libPath << ':' << envLibPath;
-    wxStringTokenizer tokenizer(libPath, _T(':'));
+        libPath << wxT(':') << envLibPath;
+    wxStringTokenizer tokenizer(libPath, wxT(':'));
     while ( tokenizer.HasMoreToken() )
     {
         wxString fullname(tokenizer.NextToken());
 
-        fullname << '/' << libname;
+        fullname << wxT('/') << libname;
         if ( wxFileExists(fullname) )
         {
             libname = fullname;