-/////////////////////////////////////////////////////////////////////////////
-// Name: fontenum.cpp
+///////////////////////////////////////////////////////////////////////////////
+// Name: msw/fontenum.cpp
// Purpose: wxFontEnumerator class for Windows
// Author: Julian Smart
-// Modified by:
+// Modified by: Vadim Zeitlin to add support for font encodings
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
-/////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#ifdef __GNUG__
+ #pragma implementation "fontenum.h"
+#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#include "wx/font.h"
#endif
-#include <wx/msw/private.h>
+#include "wx/fontenum.h"
+#include "wx/fontmap.h"
-int CALLBACK wxFontEnumeratorProc(LPLOGFONT lplf, LPTEXTMETRIC lptm,
- DWORD dwStyle, LONG lParam)
+#include "wx/msw/private.h"
+
+// ----------------------------------------------------------------------------
+// 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
{
- // Get rid of any fonts that we don't want...
- if (dwStyle != TRUETYPE_FONTTYPE)
- return 1;
+public:
+ wxFontEnumeratorHelper(wxFontEnumerator *fontEnum);
+
+ // control what exactly are we enumerating
+ // we enumerate fonts with given enocding
+ bool SetEncoding(wxFontEncoding encoding);
+ // 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();
+
+ // called by our font enumeration proc
+ bool OnFont(const LPLOGFONT lf, const LPTEXTMETRIC tm) const;
+
+private:
+ // the object we forward calls to OnFont() to
+ wxFontEnumerator *m_fontEnum;
+
+ // 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;
- wxFontEnumerator *fontEnum = (wxFontEnumerator *)lParam;
+ // if TRUE, enum only fixed fonts
+ bool m_fixedOnly;
- wxFont font = wxCreateFontFromLogFont(lplf);
+ // if TRUE, we enumerate the encodings, not fonts
+ bool m_enumEncodings;
- if (fontEnum->OnFont(font))
- return 1 ;
- else
- return 0 ;
+ // the list of charsets we already found while enumerating charsets
+ wxArrayInt m_charsets;
+};
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+int CALLBACK wxFontEnumeratorProc(LPLOGFONT lplf, LPTEXTMETRIC lptm,
+ DWORD dwStyle, LONG lParam);
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxFontEnumeratorHelper
+// ----------------------------------------------------------------------------
+
+wxFontEnumeratorHelper::wxFontEnumeratorHelper(wxFontEnumerator *fontEnum)
+{
+ m_fontEnum = fontEnum;
+ m_charset = DEFAULT_CHARSET;
+ m_fixedOnly = FALSE;
+ m_enumEncodings = FALSE;
}
-IMPLEMENT_CLASS(wxFontEnumerator, wxObject)
+void wxFontEnumeratorHelper::SetFamily(const wxString& family)
+{
+ m_enumEncodings = TRUE;
+ m_family = family;
+}
-bool wxFontEnumerator::Enumerate()
+bool wxFontEnumeratorHelper::SetEncoding(wxFontEncoding encoding)
{
- m_faceNames.Clear();
+ wxNativeEncodingInfo info;
+ if ( !wxGetNativeFontEncoding(encoding, &info) )
+ {
+ if ( !wxTheFontMapper->GetAltForEncoding(encoding, &info) )
+ {
+ // no such encodings at all
+ return FALSE;
+ }
+ }
+ m_charset = info.charset;
+ m_facename = info.facename;
- HDC hDC = ::GetDC(NULL);
-#ifdef __WIN32__
- ::EnumFontFamilies(hDC, (LPTSTR) NULL, (FONTENUMPROC) wxFontEnumeratorProc, (LPARAM) (void*) this) ;
+ 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
- ::EnumFonts(hDC, (LPTSTR) NULL, (FONTENUMPROC) wxFontEnumeratorProc, (LPARAM) (void*) this) ;
+ #define wxFONTENUMPROC FONTENUMPROC
#endif
- ::ReleaseDC(NULL, hDC);
- return TRUE;
-}
-bool wxFontEnumerator::OnFont(const wxFont& font)
+void wxFontEnumeratorHelper::DoEnumerate()
{
- m_faceNames.Add(font.GetFaceName());
+ HDC hDC = ::GetDC(NULL);
+
+#ifdef __WIN32__
+ LOGFONT lf;
+ lf.lfCharSet = m_charset;
+ wxStrncpy(lf.lfFaceName, m_facename, WXSIZEOF(lf.lfFaceName));
+ lf.lfPitchAndFamily = 0;
+ ::EnumFontFamiliesEx(hDC, &lf, (wxFONTENUMPROC)wxFontEnumeratorProc,
+ (LPARAM)this, 0 /* reserved */) ;
+#else // Win16
+ ::EnumFonts(hDC, (LPTSTR)NULL, (FONTENUMPROC)wxFontEnumeratorProc,
+ #ifdef STRICT
+ (LPARAM)
+ #else
+ (LPSTR)
+ #endif
+ this);
+#endif // Win32/16
+
+ ::ReleaseDC(NULL, hDC);
+}
+
+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
+ // flag name is misleading!)
+ if ( tm->tmPitchAndFamily & TMPF_FIXED_PITCH )
+ {
+ // not a fixed pitch font
+ return TRUE;
+ }
+ }
+
+ if ( m_charset != -1 )
+ {
+ // check that we have the right encoding
+ if ( lf->lfCharSet != m_charset )
+ {
+ return TRUE;
+ }
+ }
+
+ return m_fontEnum->OnFacename(lf->lfFaceName);
+}
+
+// ----------------------------------------------------------------------------
+// wxFontEnumerator
+// ----------------------------------------------------------------------------
+
+bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
+ bool fixedWidthOnly)
+{
+ wxFontEnumeratorHelper fe(this);
+ if ( fe.SetEncoding(encoding) )
+ {
+ fe.SetFixedOnly(fixedWidthOnly);
+
+ fe.DoEnumerate();
+ }
+ // else: no such fonts, unknown encoding
+
return TRUE;
}
+bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
+{
+ wxFontEnumeratorHelper fe(this);
+ fe.SetFamily(family);
+ fe.DoEnumerate();
+
+ return TRUE;
+}
+
+// ----------------------------------------------------------------------------
+// Windows callbacks
+// ----------------------------------------------------------------------------
+
+int CALLBACK wxFontEnumeratorProc(LPLOGFONT lplf, LPTEXTMETRIC lptm,
+ DWORD dwStyle, LONG lParam)
+{
+ // Get rid of any fonts that we don't want...
+ if ( dwStyle != TRUETYPE_FONTTYPE )
+ {
+ // continue enumeration
+ return TRUE;
+ }
+
+ wxFontEnumeratorHelper *fontEnum = (wxFontEnumeratorHelper *)lParam;
+
+ return fontEnum->OnFont(lplf, lptm);
+}
+
projects / wxWidgets.git / blobdiff