fixed incorrect GetTextExtent for wxTELETYPE font

[wxWidgets.git] / src / msw / fontenum.cpp

diff --git a/src/msw/fontenum.cpp b/src/msw/fontenum.cpp
index ed6a8239923cf57a87a5183a25926a2ccb68e3c3..b547ec12f4889cd7b0fac74f3644e49e8e0f3206 100644 (file)
--- a/src/msw/fontenum.cpp
+++ b/src/msw/fontenum.cpp
@@ -33,6 +33,7 @@
 #endif
 
 #include "wx/fontenum.h"
+#include "wx/fontmap.h"
 
 #include "wx/msw/private.h"
 
@@ -40,15 +41,21 @@
 // private classes
 // ----------------------------------------------------------------------------
 
+// the helper class which calls ::EnumFontFamilies() and whose OnFont() is
+// called from the callback passed to this function and, in its turn, calls the
+// appropariate wxFontEnumerator method
 class wxFontEnumeratorHelper
 {
 public:
     wxFontEnumeratorHelper(wxFontEnumerator *fontEnum);
 
     // control what exactly are we enumerating
+        // we enumerate fonts with given enocding
     bool SetEncoding(wxFontEncoding encoding);
-    void SetFixedOnly(bool fixedOnly)
-        { m_fixedOnly = fixedOnly; }
+        // we enumerate fixed-width fonts
+    void SetFixedOnly(bool fixedOnly) { m_fixedOnly = fixedOnly; }
+        // we enumerate the encodings available in this family
+    void SetFamily(const wxString& family);
 
     // call to start enumeration
     void DoEnumerate();
@@ -63,8 +70,20 @@ private:
     // if != -1, enum only fonts which have this encoding
     int m_charset;
 
+    // if not empty, enum only the fonts with this facename
+    wxString m_facename;
+
+    // if not empty, enum only the fonts in this family
+    wxString m_family;
+
     // if TRUE, enum only fixed fonts
     bool m_fixedOnly;
+
+    // if TRUE, we enumerate the encodings, not fonts
+    bool m_enumEncodings;
+
+    // the list of charsets we already found while enumerating charsets
+    wxArrayInt m_charsets;
 };
 
 // ----------------------------------------------------------------------------
@@ -85,24 +104,44 @@ int CALLBACK wxFontEnumeratorProc(LPLOGFONT lplf, LPTEXTMETRIC lptm,
 wxFontEnumeratorHelper::wxFontEnumeratorHelper(wxFontEnumerator *fontEnum)
 {
     m_fontEnum = fontEnum;
-    m_charset = -1;
+    m_charset = DEFAULT_CHARSET;
     m_fixedOnly = FALSE;
+    m_enumEncodings = FALSE;
+}
+
+void wxFontEnumeratorHelper::SetFamily(const wxString& family)
+{
+    m_enumEncodings = TRUE;
+    m_family = family;
 }
 
 bool wxFontEnumeratorHelper::SetEncoding(wxFontEncoding encoding)
 {
-    bool exact;
-    m_charset = wxCharsetFromEncoding(encoding, &exact);
-#ifdef __WIN32__
-    if ( !exact )
+    wxNativeEncodingInfo info;
+    if ( !wxGetNativeFontEncoding(encoding, &info) )
     {
-        m_charset = DEFAULT_CHARSET;
+        if ( !wxTheFontMapper->GetAltForEncoding(encoding, &info) )
+        {
+            // no such encodings at all
+            return FALSE;
+        }
     }
-#endif // Win32
+    m_charset = info.charset;
+    m_facename = info.facename;
 
-    return exact;
+    return TRUE;
 }
 
+#if defined(__GNUWIN32__)
+    #if wxUSE_NORLANDER_HEADERS
+        #define wxFONTENUMPROC int(*)(const LOGFONTA *, const TEXTMETRICA *, long unsigned int, LPARAM)
+    #else
+        #define wxFONTENUMPROC int(*)(ENUMLOGFONTEX *, NEWTEXTMETRICEX*, int, LPARAM)
+    #endif
+#else
+    #define wxFONTENUMPROC FONTENUMPROC
+#endif
+
 void wxFontEnumeratorHelper::DoEnumerate()
 {
     HDC hDC = ::GetDC(NULL);
@@ -110,13 +149,18 @@ void wxFontEnumeratorHelper::DoEnumerate()
 #ifdef __WIN32__
     LOGFONT lf;
     lf.lfCharSet = m_charset;
-    lf.lfFaceName[0] = _T('\0');
+    wxStrncpy(lf.lfFaceName, m_facename, WXSIZEOF(lf.lfFaceName));
     lf.lfPitchAndFamily = 0;
-    ::EnumFontFamiliesEx(hDC, &lf, (FONTENUMPROC)wxFontEnumeratorProc,
+    ::EnumFontFamiliesEx(hDC, &lf, (wxFONTENUMPROC)wxFontEnumeratorProc,
                          (LPARAM)this, 0 /* reserved */) ;
 #else // Win16
     ::EnumFonts(hDC, (LPTSTR)NULL, (FONTENUMPROC)wxFontEnumeratorProc,
-                (LPARAM) (void*) this) ;
+    #ifdef STRICT
+               (LPARAM)
+    #else
+               (LPSTR)
+    #endif
+               this);
 #endif // Win32/16
 
     ::ReleaseDC(NULL, hDC);
@@ -125,6 +169,25 @@ void wxFontEnumeratorHelper::DoEnumerate()
 bool wxFontEnumeratorHelper::OnFont(const LPLOGFONT lf,
                                     const LPTEXTMETRIC tm) const
 {
+    if ( m_enumEncodings )
+    {
+        // is this a new charset?
+        int cs = lf->lfCharSet;
+        if ( m_charsets.Index(cs) == wxNOT_FOUND )
+        {
+            wxConstCast(this, wxFontEnumeratorHelper)->m_charsets.Add(cs);
+
+            wxFontEncoding enc = wxGetFontEncFromCharSet(cs);
+            return m_fontEnum->OnFontEncoding(lf->lfFaceName,
+                                              wxFontMapper::GetEncodingName(enc));
+        }
+        else
+        {
+            // continue enumeration
+            return TRUE;
+        }
+    }
+
     if ( m_fixedOnly )
     {
         // check that it's a fixed pitch font (there is *no* error here, the
@@ -145,15 +208,15 @@ bool wxFontEnumeratorHelper::OnFont(const LPLOGFONT lf,
         }
     }
 
-    return m_fontEnum->OnFontFamily(lf->lfFaceName);
+    return m_fontEnum->OnFacename(lf->lfFaceName);
 }
 
 // ----------------------------------------------------------------------------
 // wxFontEnumerator
 // ----------------------------------------------------------------------------
 
-bool wxFontEnumerator::EnumerateFamilies(wxFontEncoding encoding,
-                                         bool fixedWidthOnly)
+bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
+                                          bool fixedWidthOnly)
 {
     wxFontEnumeratorHelper fe(this);
     if ( fe.SetEncoding(encoding) )
@@ -169,7 +232,9 @@ bool wxFontEnumerator::EnumerateFamilies(wxFontEncoding encoding,
 
 bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
 {
-    wxFAIL_MSG(wxT("TODO"));
+    wxFontEnumeratorHelper fe(this);
+    fe.SetFamily(family);
+    fe.DoEnumerate();
 
     return TRUE;
 }