X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/543f08a67631f2849872d5d3ee7cb99047718560..8a31648287be0ef976f133de2786b137f1e98340:/src/msw/fontenum.cpp diff --git a/src/msw/fontenum.cpp b/src/msw/fontenum.cpp index fe6fe19421..f540cf64be 100644 --- a/src/msw/fontenum.cpp +++ b/src/msw/fontenum.cpp @@ -1,13 +1,21 @@ -///////////////////////////////////////////////////////////////////////////// -// Name: fontenum.cpp +/////////////////////////////////////////////////////////////////////////////// +// Name: src/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 +// ---------------------------------------------------------------------------- // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -16,48 +24,269 @@ #pragma hdrstop #endif +#if wxUSE_FONTENUM + +#include "wx/fontenum.h" + #ifndef WX_PRECOMP - #include "wx/font.h" + #include "wx/gdicmn.h" + #include "wx/font.h" + #include "wx/dynarray.h" + #include "wx/msw/private.h" #endif -#include +#include "wx/encinfo.h" +#include "wx/fontutil.h" +#include "wx/fontmap.h" -int CALLBACK wxFontEnumeratorProc(LPLOGFONT lplf, LPTEXTMETRIC lptm, - DWORD dwStyle, LONG lParam) +// ---------------------------------------------------------------------------- +// 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; + + // if true, enum only fixed fonts + bool m_fixedOnly; - wxFontEnumerator *fontEnum = (wxFontEnumerator *)lParam; + // if true, we enumerate the encodings, not fonts + bool m_enumEncodings; - wxFont font = wxCreateFontFromLogFont(lplf); + // the list of charsets we already found while enumerating charsets + wxArrayInt m_charsets; - if (fontEnum->OnFont(font)) - return 1 ; - else - return 0 ; + // the list of facenames we already found while enumerating facenames + wxArrayString m_facenames; + + wxDECLARE_NO_COPY_CLASS(wxFontEnumeratorHelper); +}; + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +#ifndef __WXMICROWIN__ +int CALLBACK wxFontEnumeratorProc(LPLOGFONT lplf, LPTEXTMETRIC lptm, + DWORD dwStyle, LPARAM lParam); +#endif + +// ============================================================================ +// 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(); + if ( encoding != wxFONTENCODING_SYSTEM ) + { + wxNativeEncodingInfo info; + if ( !wxGetNativeFontEncoding(encoding, &info) ) + { +#if wxUSE_FONTMAP + if ( !wxFontMapper::Get()->GetAltForEncoding(encoding, &info) ) +#endif // wxUSE_FONTMAP + { + // 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__) && !defined(__CYGWIN10__) && !wxCHECK_W32API_VERSION( 1, 1 ) && !wxUSE_NORLANDER_HEADERS + #define wxFONTENUMPROC int(*)(ENUMLOGFONTEX *, NEWTEXTMETRICEX*, int, LPARAM) #else - ::EnumFonts(hDC, (LPTSTR) NULL, (FONTENUMPROC) wxFontEnumeratorProc, (LPARAM) (void*) this) ; + #define wxFONTENUMPROC FONTENUMPROC +#endif + +void wxFontEnumeratorHelper::DoEnumerate() +{ +#ifndef __WXMICROWIN__ + HDC hDC = ::GetDC(NULL); + +#ifdef __WXWINCE__ + ::EnumFontFamilies(hDC, + m_facename.empty() ? NULL : m_facename.wx_str(), + (wxFONTENUMPROC)wxFontEnumeratorProc, + (LPARAM)this) ; +#else // __WIN32__ + LOGFONT lf; + lf.lfCharSet = (BYTE)m_charset; + wxStrlcpy(lf.lfFaceName, m_facename.c_str(), WXSIZEOF(lf.lfFaceName)); + lf.lfPitchAndFamily = 0; + ::EnumFontFamiliesEx(hDC, &lf, (wxFONTENUMPROC)wxFontEnumeratorProc, + (LPARAM)this, 0 /* reserved */) ; +#endif // Win32/CE + + ::ReleaseDC(NULL, hDC); #endif - ::ReleaseDC(NULL, hDC); - return TRUE; -} +} + +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 != DEFAULT_CHARSET ) + { + // check that we have the right encoding + if ( lf->lfCharSet != m_charset ) + { + return true; + } + } + else // enumerating fonts in all charsets + { + // we can get the same facename twice or more in this case because it + // may exist in several charsets but we only want to return one copy of + // it (note that this can't happen for m_charset != DEFAULT_CHARSET) + if ( m_facenames.Index(lf->lfFaceName) != wxNOT_FOUND ) + { + // continue enumeration + return true; + } + + wxConstCast(this, wxFontEnumeratorHelper)-> + m_facenames.Add(lf->lfFaceName); + } + + 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::OnFont(const wxFont& font) +bool wxFontEnumerator::EnumerateEncodings(const wxString& family) { - m_faceNames.Add(font.GetFaceName()); - return TRUE; + wxFontEnumeratorHelper fe(this); + fe.SetFamily(family); + fe.DoEnumerate(); + + return true; } +// ---------------------------------------------------------------------------- +// Windows callbacks +// ---------------------------------------------------------------------------- + +#ifndef __WXMICROWIN__ +int CALLBACK wxFontEnumeratorProc(LPLOGFONT lplf, LPTEXTMETRIC lptm, + DWORD WXUNUSED(dwStyle), LPARAM lParam) +{ + + // we used to process TrueType fonts only, but there doesn't seem to be any + // reasons to restrict ourselves to them here +#if 0 + // Get rid of any fonts that we don't want... + if ( dwStyle != TRUETYPE_FONTTYPE ) + { + // continue enumeration + return TRUE; + } +#endif // 0 + + wxFontEnumeratorHelper *fontEnum = (wxFontEnumeratorHelper *)lParam; + + return fontEnum->OnFont(lplf, lptm); +} +#endif + +#endif // wxUSE_FONTENUM