src/mgl/fontutil.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        mgl/fontutil.cpp
// Purpose:     Font helper functions for MGL
// Author:      Vaclav Slavik
// Created:     2001/04/29
// RCS-ID:      $Id$
// Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////


#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
    #pragma implementation "fontutil.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#include "wx/log.h"
#include "wx/fontutil.h"
#include "wx/encinfo.h"
#include "wx/fontmap.h"
#include "wx/tokenzr.h"
#include "wx/hash.h"

#include "wx/listimpl.cpp"
#include "wx/sysopt.h"
#include "wx/mgl/private.h"

#include <mgraph.h>

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxNativeEncodingInfo
// ----------------------------------------------------------------------------

// convert to/from the string representation: format is
//      encoding[;facename]
bool wxNativeEncodingInfo::FromString(const wxString& s)
{
    wxStringTokenizer tokenizer(s, _T(";"));

    wxString encid = tokenizer.GetNextToken();
    long enc;
    if ( !encid.ToLong(&enc) )
        return FALSE;
    encoding = (wxFontEncoding)enc;

    // ok even if empty
    facename = tokenizer.GetNextToken();

    return TRUE;
}

wxString wxNativeEncodingInfo::ToString() const
{
    wxString s;
    s << (long)encoding;
    if ( !!facename )
    {
        s << _T(';') << facename;
    }

    return s;
}

// ----------------------------------------------------------------------------
// common functions
// ----------------------------------------------------------------------------

bool wxGetNativeFontEncoding(wxFontEncoding encoding,
                             wxNativeEncodingInfo *info)
{
    wxCHECK_MSG( info, FALSE, _T("bad pointer in wxGetNativeFontEncoding") );

    if ( encoding == wxFONTENCODING_DEFAULT )
    {
        encoding = wxFont::GetDefaultEncoding();
    }

    switch ( encoding )
    {
        case wxFONTENCODING_ISO8859_1:
        case wxFONTENCODING_ISO8859_2:
        case wxFONTENCODING_ISO8859_3:
        case wxFONTENCODING_ISO8859_4:
        case wxFONTENCODING_ISO8859_5:
        case wxFONTENCODING_ISO8859_6:
        case wxFONTENCODING_ISO8859_7:
        case wxFONTENCODING_ISO8859_8:
        case wxFONTENCODING_ISO8859_9:
        case wxFONTENCODING_ISO8859_10:
        case wxFONTENCODING_ISO8859_11:
        case wxFONTENCODING_ISO8859_13:
        case wxFONTENCODING_ISO8859_14:
        case wxFONTENCODING_ISO8859_15:
            info->mglEncoding = MGL_ENCODING_ISO8859_1 +
                                (encoding - wxFONTENCODING_ISO8859_1);
            break;

        case wxFONTENCODING_KOI8:
            info->mglEncoding = MGL_ENCODING_KOI8;
            break;

        case wxFONTENCODING_CP1250:
        case wxFONTENCODING_CP1251:
        case wxFONTENCODING_CP1252:
        case wxFONTENCODING_CP1253:
        case wxFONTENCODING_CP1254:
        case wxFONTENCODING_CP1255:
        case wxFONTENCODING_CP1256:
        case wxFONTENCODING_CP1257:
            info->mglEncoding = MGL_ENCODING_CP1250 +
                                (encoding - wxFONTENCODING_CP1250);
            break;

        case wxFONTENCODING_SYSTEM:
            info->mglEncoding = MGL_ENCODING_ASCII;
            break;

        default:
            // encoding not known to MGL
            return FALSE;
    }

    info->encoding = encoding;

    return TRUE;
}

bool wxTestFontEncoding(const wxNativeEncodingInfo& info)
{
    if ( !info.facename )
        return TRUE;

    wxMGLFontFamily *family = wxTheFontsManager->GetFamily(info.facename);
    if ( !family )
        return FALSE;
    if ( family->GetInfo()->fontLibType == MGL_BITMAPFONT_LIB )
        return (info.mglEncoding == MGL_ENCODING_ASCII ||
                info.mglEncoding == MGL_ENCODING_ISO8859_1 ||
                info.mglEncoding == MGL_ENCODING_ISO8859_15 ||
                info.mglEncoding == MGL_ENCODING_CP1252);
    else
        return TRUE;
}


// ----------------------------------------------------------------------------
// wxFontFamily, wxMGLFontInstance, wxMGLFontLibrary
// ----------------------------------------------------------------------------

WX_DECLARE_LIST(wxMGLFontInstance, wxMGLFontInstanceList);
WX_DEFINE_LIST(wxMGLFontInstanceList);
WX_DEFINE_LIST(wxMGLFontFamilyList);

wxMGLFontInstance::wxMGLFontInstance(wxMGLFontLibrary *fontLib,
                                     float pt, bool slant, bool aa)
{
    m_fontLib = fontLib;
    m_font = NULL;
    m_pt = pt;
    m_slant = slant;
    m_aa = aa;

    float slantAngle = m_slant ? 15.0 : 0.0;

    wxLogTrace("mgl_font", "loading instance of '%s' slant=%i pt=%0.1f aa=%i",
               m_fontLib->GetMGLfont_lib_t()->name, m_slant, m_pt, m_aa);
    m_font = MGL_loadFontInstance(m_fontLib->GetMGLfont_lib_t(),
                                  m_pt, slantAngle, 0.0, aa);
    wxASSERT_MSG( m_font, wxT("Cannot create font instance.") );
}

wxMGLFontInstance::~wxMGLFontInstance()
{
    wxLogTrace("mgl_font", "unloading instance of '%s' slant=%i pt=%0.1f aa=%i",
               m_fontLib->GetMGLfont_lib_t()->name, m_slant, m_pt, m_aa);
    if ( m_font )
        MGL_unloadFontInstance(m_font);
}

wxMGLFontLibrary::wxMGLFontLibrary(const wxString& filename, int type,
                                   wxMGLFontFamily *parentFamily)
{
    m_family = parentFamily;
    m_type = type;
    m_fileName = filename;
    m_refs = 0;
    m_fontLib = NULL;

    m_instances = new wxMGLFontInstanceList;
    m_instances->DeleteContents(TRUE);
}

wxMGLFontLibrary::~wxMGLFontLibrary()
{
    wxLogTrace("mgl_font", "font library dtor '%s'", m_fileName.mb_str());
    delete m_instances;
}

void wxMGLFontLibrary::IncRef()
{
    wxLogTrace("mgl_font", "incRef(%u) '%s'", m_refs, m_fileName.c_str());
    if ( m_refs++ == 0 )
    {
        wxLogTrace("mgl_font", "opening library '%s'", m_fileName.mb_str());
        m_fontLib = MGL_openFontLib(m_fileName.mb_str());
    }
}

void wxMGLFontLibrary::DecRef()
{
    wxLogTrace("mgl_font", "decRef(%u) '%s'", m_refs, m_fileName.c_str());
    if ( --m_refs == 0 )
    {
        wxLogTrace("mgl_font", "killing instances of '%s'", m_fileName.mb_str());
        m_instances->Clear();
        wxLogTrace("mgl_font", "closing library '%s'", m_fileName.mb_str());
        MGL_closeFontLib(m_fontLib);
        m_fontLib = NULL;
    }
}

static int gs_antialiasingThreshold = -1;

wxMGLFontInstance *wxMGLFontLibrary::GetFontInstance(wxFont *font,
                                                     float scale, bool aa)
{
    wxASSERT_MSG(m_refs > 0 && m_fontLib, wxT("font library not loaded!"));

    wxString facename;
    bool slant;
    bool antialiased;
    float pt = (float)font->GetPointSize() * scale;

    if ( gs_antialiasingThreshold == -1 )
    {
        gs_antialiasingThreshold = 10;
#if wxUSE_SYSTEM_OPTIONS
        if ( wxSystemOptions::HasOption(wxT("mgl.aa-threshold")) )
            gs_antialiasingThreshold =
                wxSystemOptions::GetOptionInt(wxT("mgl.aa-threshold"));
        wxLogTrace("mgl_font", "AA threshold set to %i", gs_antialiasingThreshold);
#endif
    }

    // Small characters don't look good when antialiased with the algorithm
    // that FreeType uses (mere 2x2 supersampling), so lets disable it AA
    // completely for small fonts.
    if ( pt <= gs_antialiasingThreshold )
        antialiased = FALSE;
    else
        antialiased = (m_fontLib->fontLibType == MGL_BITMAPFONT_LIB) ? FALSE : aa;

    slant = (((m_type & wxFONTFACE_ITALIC) == 0) &&
             (font->GetStyle() == wxSLANT || font->GetStyle() == wxITALIC));

    // FIXME_MGL -- MGL does not yet support slant, although the API is there
    slant = FALSE;

    wxLogTrace("mgl_font", "requested instance of '%s' slant=%i pt=%0.1f aa=%i",
               m_fileName.mb_str(), slant, pt, antialiased);

    wxMGLFontInstance *i;
    wxMGLFontInstanceList::Node *node;

    for (node = m_instances->GetFirst(); node; node = node->GetNext())
    {
        i = node->GetData();
        if ( i->GetPt() == pt && i->GetSlant() == slant &&
             i->GetAA() == antialiased )
        {
            wxLogTrace("mgl_font", "    got from cache: slant=%i pt=%0.1f aa=%i",
                       i->GetSlant(), i->GetPt(), i->GetAA());
            return i;
        }
    }

    i = new wxMGLFontInstance(this, pt, slant, antialiased);
    m_instances->Append(i);
    return i;
}


wxMGLFontFamily::wxMGLFontFamily(const font_info_t *info)
{
    m_name = info->familyName;
    m_fontInfo = info;

    if ( info->regularFace[0] == '\0' )
        m_fontLibs[wxFONTFACE_REGULAR] = NULL;
    else
        m_fontLibs[wxFONTFACE_REGULAR] =
            new wxMGLFontLibrary(info->regularFace, wxFONTFACE_REGULAR, this);

    if ( info->italicFace[0] == '\0' )
        m_fontLibs[wxFONTFACE_ITALIC] = NULL;
    else
        m_fontLibs[wxFONTFACE_ITALIC] =
            new wxMGLFontLibrary(info->italicFace, wxFONTFACE_ITALIC, this);

    if ( info->boldFace[0] == '\0' )
        m_fontLibs[wxFONTFACE_BOLD] = NULL;
    else
        m_fontLibs[wxFONTFACE_BOLD] =
            new wxMGLFontLibrary(info->boldFace, wxFONTFACE_BOLD, this);

    if ( info->boldItalicFace[0] == '\0' )
        m_fontLibs[wxFONTFACE_BOLD_ITALIC] = NULL;
    else
        m_fontLibs[wxFONTFACE_BOLD_ITALIC] =
            new wxMGLFontLibrary(info->boldItalicFace, wxFONTFACE_BOLD_ITALIC, this);

    wxLogTrace("mgl_font", "new family '%s' (r=%s, i=%s, b=%s, bi=%s)\n",
               info->familyName, info->regularFace, info->italicFace,
               info->boldFace, info->boldItalicFace);
}

wxMGLFontFamily::~wxMGLFontFamily()
{
    for (size_t i = 0; i < wxFONTFACE_MAX; i++)
        delete m_fontLibs[i];
}

bool wxMGLFontFamily::HasFace(int type) const
{
    return (m_fontLibs[type] != NULL);
}


// ----------------------------------------------------------------------------
// wxFontsManager
// ----------------------------------------------------------------------------

wxMGLFontLibrary *wxFontsManager::GetFontLibrary(wxFont *font)
{
    wxMGLFontFamily *family;
    int type;
    wxString facename = font->GetFaceName();

    if ( !facename.IsEmpty() )
        family = GetFamily(facename);
    else
        family = NULL;

    if ( !family )
    {
        facename.Empty();
        switch (font->GetFamily())
        {
            case wxSCRIPT:
                facename = wxT("Script");
                break;
            case wxDECORATIVE:
                facename = wxT("Charter");
                break;
            case wxROMAN:
                facename = wxT("Times");
                break;
            case wxTELETYPE:
            case wxMODERN:
                facename = wxT("Courier");
                break;
            case wxSWISS:
                facename = wxT("Helvetica");
                break;
            case wxDEFAULT:
            default:
                facename = wxT("Helvetica");
                break;
        }

        family = GetFamily(facename);
        if ( !family )
        {
           if ( m_list->GetFirst() )
               family = m_list->GetFirst()->GetData();
           else
               wxFAIL_MSG(wxT("Fatal error, no fonts available!"));
        }
    }

    type = wxFONTFACE_REGULAR;

    if ( font->GetWeight() == wxBOLD )
        type |= wxFONTFACE_BOLD;

    // FIXME_MGL -- this should read "if ( font->GetStyle() == wxITALIC )",
    // but since MGL does not yet support slant, we try to display it with
    // italic face (better than nothing...)
    if ( font->GetStyle() == wxITALIC || font->GetStyle() == wxSLANT )
    {
        if ( family->HasFace(type | wxFONTFACE_ITALIC) )
            type |= wxFONTFACE_ITALIC;
    }
    if ( !family->HasFace(type) )
    {
        for (int i = 0; i < wxFONTFACE_MAX; i++)
            if ( family->HasFace(i) )
            {
                type = i;
                break;
            }
    }

    return family->GetLibrary(type);
}

static ibool MGLAPI enum_callback(const font_info_t *info, void *cookie)
{
    wxFontsManager *db = (wxFontsManager*)cookie;
    db->AddFamily(info);
    return TRUE;
}

wxFontsManager::wxFontsManager()
{
    m_hash = new wxHashTable(wxKEY_STRING);
    m_hash->DeleteContents(FALSE);
    m_list = new wxMGLFontFamilyList;
    m_list->DeleteContents(TRUE);
    MGL_enumerateFonts(enum_callback, (void*)this);
}

wxFontsManager::~wxFontsManager()
{
    delete m_hash;
    delete m_list;
}

void wxFontsManager::AddFamily(const font_info_t *info)
{
    wxMGLFontFamily *f = new wxMGLFontFamily(info);
    m_hash->Put(f->GetName().Lower(), f);
    m_list->Append(f);
}

wxMGLFontFamily *wxFontsManager::GetFamily(const wxString& name) const
{
    return (wxMGLFontFamily*)m_hash->Get(name.Lower());
}


wxFontsManager *wxTheFontsManager = NULL;
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: mgl/fontutil.cpp
	3	// Purpose: Font helper functions for MGL
	4	// Author: Vaclav Slavik
	5	// Created: 2001/04/29
	6	// RCS-ID: $Id$
	7	// Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11
	12	#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
	13	#pragma implementation "fontutil.h"
	14	#endif
	15
	16	// For compilers that support precompilation, includes "wx.h".
	17	#include "wx/wxprec.h"
	18
	19	#ifdef __BORLANDC__
	20	#pragma hdrstop
	21	#endif
	22
	23	#include "wx/log.h"
	24	#include "wx/fontutil.h"
	25	#include "wx/encinfo.h"
	26	#include "wx/fontmap.h"
	27	#include "wx/tokenzr.h"
	28	#include "wx/hash.h"
	29
	30	#include "wx/listimpl.cpp"
	31	#include "wx/sysopt.h"
	32	#include "wx/mgl/private.h"
	33
	34	#include <mgraph.h>
	35
	36	// ============================================================================
	37	// implementation
	38	// ============================================================================
	39
	40	// ----------------------------------------------------------------------------
	41	// wxNativeEncodingInfo
	42	// ----------------------------------------------------------------------------
	43
	44	// convert to/from the string representation: format is
	45	// encoding[;facename]
	46	bool wxNativeEncodingInfo::FromString(const wxString& s)
	47	{
	48	wxStringTokenizer tokenizer(s, _T(";"));
	49
	50	wxString encid = tokenizer.GetNextToken();
	51	long enc;
	52	if ( !encid.ToLong(&enc) )
	53	return FALSE;
	54	encoding = (wxFontEncoding)enc;
	55
	56	// ok even if empty
	57	facename = tokenizer.GetNextToken();
	58
	59	return TRUE;
	60	}
	61
	62	wxString wxNativeEncodingInfo::ToString() const
	63	{
	64	wxString s;
	65	s << (long)encoding;
	66	if ( !!facename )
	67	{
	68	s << _T(';') << facename;
	69	}
	70
	71	return s;
	72	}
	73
	74	// ----------------------------------------------------------------------------
	75	// common functions
	76	// ----------------------------------------------------------------------------
	77
	78	bool wxGetNativeFontEncoding(wxFontEncoding encoding,
	79	wxNativeEncodingInfo *info)
	80	{
	81	wxCHECK_MSG( info, FALSE, _T("bad pointer in wxGetNativeFontEncoding") );
	82
	83	if ( encoding == wxFONTENCODING_DEFAULT )
	84	{
	85	encoding = wxFont::GetDefaultEncoding();
	86	}
	87
	88	switch ( encoding )
	89	{
	90	case wxFONTENCODING_ISO8859_1:
	91	case wxFONTENCODING_ISO8859_2:
	92	case wxFONTENCODING_ISO8859_3:
	93	case wxFONTENCODING_ISO8859_4:
	94	case wxFONTENCODING_ISO8859_5:
	95	case wxFONTENCODING_ISO8859_6:
	96	case wxFONTENCODING_ISO8859_7:
	97	case wxFONTENCODING_ISO8859_8:
	98	case wxFONTENCODING_ISO8859_9:
	99	case wxFONTENCODING_ISO8859_10:
	100	case wxFONTENCODING_ISO8859_11:
	101	case wxFONTENCODING_ISO8859_13:
	102	case wxFONTENCODING_ISO8859_14:
	103	case wxFONTENCODING_ISO8859_15:
	104	info->mglEncoding = MGL_ENCODING_ISO8859_1 +
	105	(encoding - wxFONTENCODING_ISO8859_1);
	106	break;
	107
	108	case wxFONTENCODING_KOI8:
	109	info->mglEncoding = MGL_ENCODING_KOI8;
	110	break;
	111
	112	case wxFONTENCODING_CP1250:
	113	case wxFONTENCODING_CP1251:
	114	case wxFONTENCODING_CP1252:
	115	case wxFONTENCODING_CP1253:
	116	case wxFONTENCODING_CP1254:
	117	case wxFONTENCODING_CP1255:
	118	case wxFONTENCODING_CP1256:
	119	case wxFONTENCODING_CP1257:
	120	info->mglEncoding = MGL_ENCODING_CP1250 +
	121	(encoding - wxFONTENCODING_CP1250);
	122	break;
	123
	124	case wxFONTENCODING_SYSTEM:
	125	info->mglEncoding = MGL_ENCODING_ASCII;
	126	break;
	127
	128	default:
	129	// encoding not known to MGL
	130	return FALSE;
	131	}
	132
	133	info->encoding = encoding;
	134
	135	return TRUE;
	136	}
	137
	138	bool wxTestFontEncoding(const wxNativeEncodingInfo& info)
	139	{
	140	if ( !info.facename )
	141	return TRUE;
	142
	143	wxMGLFontFamily *family = wxTheFontsManager->GetFamily(info.facename);
	144	if ( !family )
	145	return FALSE;
	146	if ( family->GetInfo()->fontLibType == MGL_BITMAPFONT_LIB )
	147	return (info.mglEncoding == MGL_ENCODING_ASCII \|\|
	148	info.mglEncoding == MGL_ENCODING_ISO8859_1 \|\|
	149	info.mglEncoding == MGL_ENCODING_ISO8859_15 \|\|
	150	info.mglEncoding == MGL_ENCODING_CP1252);
	151	else
	152	return TRUE;
	153	}
	154
	155
	156	// ----------------------------------------------------------------------------
	157	// wxFontFamily, wxMGLFontInstance, wxMGLFontLibrary
	158	// ----------------------------------------------------------------------------
	159
	160	WX_DECLARE_LIST(wxMGLFontInstance, wxMGLFontInstanceList);
	161	WX_DEFINE_LIST(wxMGLFontInstanceList);
	162	WX_DEFINE_LIST(wxMGLFontFamilyList);
	163
	164	wxMGLFontInstance::wxMGLFontInstance(wxMGLFontLibrary *fontLib,
	165	float pt, bool slant, bool aa)
	166	{
	167	m_fontLib = fontLib;
	168	m_font = NULL;
	169	m_pt = pt;
	170	m_slant = slant;
	171	m_aa = aa;
	172
	173	float slantAngle = m_slant ? 15.0 : 0.0;
	174
	175	wxLogTrace("mgl_font", "loading instance of '%s' slant=%i pt=%0.1f aa=%i",
	176	m_fontLib->GetMGLfont_lib_t()->name, m_slant, m_pt, m_aa);
	177	m_font = MGL_loadFontInstance(m_fontLib->GetMGLfont_lib_t(),
	178	m_pt, slantAngle, 0.0, aa);
	179	wxASSERT_MSG( m_font, wxT("Cannot create font instance.") );
	180	}
	181
	182	wxMGLFontInstance::~wxMGLFontInstance()
	183	{
	184	wxLogTrace("mgl_font", "unloading instance of '%s' slant=%i pt=%0.1f aa=%i",
	185	m_fontLib->GetMGLfont_lib_t()->name, m_slant, m_pt, m_aa);
	186	if ( m_font )
	187	MGL_unloadFontInstance(m_font);
	188	}
	189
	190	wxMGLFontLibrary::wxMGLFontLibrary(const wxString& filename, int type,
	191	wxMGLFontFamily *parentFamily)
	192	{
	193	m_family = parentFamily;
	194	m_type = type;
	195	m_fileName = filename;
	196	m_refs = 0;
	197	m_fontLib = NULL;
	198
	199	m_instances = new wxMGLFontInstanceList;
	200	m_instances->DeleteContents(TRUE);
	201	}
	202
	203	wxMGLFontLibrary::~wxMGLFontLibrary()
	204	{
	205	wxLogTrace("mgl_font", "font library dtor '%s'", m_fileName.mb_str());
	206	delete m_instances;
	207	}
	208
	209	void wxMGLFontLibrary::IncRef()
	210	{
	211	wxLogTrace("mgl_font", "incRef(%u) '%s'", m_refs, m_fileName.c_str());
	212	if ( m_refs++ == 0 )
	213	{
	214	wxLogTrace("mgl_font", "opening library '%s'", m_fileName.mb_str());
	215	m_fontLib = MGL_openFontLib(m_fileName.mb_str());
	216	}
	217	}
	218
	219	void wxMGLFontLibrary::DecRef()
	220	{
	221	wxLogTrace("mgl_font", "decRef(%u) '%s'", m_refs, m_fileName.c_str());
	222	if ( --m_refs == 0 )
	223	{
	224	wxLogTrace("mgl_font", "killing instances of '%s'", m_fileName.mb_str());
	225	m_instances->Clear();
	226	wxLogTrace("mgl_font", "closing library '%s'", m_fileName.mb_str());
	227	MGL_closeFontLib(m_fontLib);
	228	m_fontLib = NULL;
	229	}
	230	}
	231
	232	static int gs_antialiasingThreshold = -1;
	233
	234	wxMGLFontInstance wxMGLFontLibrary::GetFontInstance(wxFont font,
	235	float scale, bool aa)
	236	{
	237	wxASSERT_MSG(m_refs > 0 && m_fontLib, wxT("font library not loaded!"));
	238
	239	wxString facename;
	240	bool slant;
	241	bool antialiased;
	242	float pt = (float)font->GetPointSize() * scale;
	243
	244	if ( gs_antialiasingThreshold == -1 )
	245	{
	246	gs_antialiasingThreshold = 10;
	247	#if wxUSE_SYSTEM_OPTIONS
	248	if ( wxSystemOptions::HasOption(wxT("mgl.aa-threshold")) )
	249	gs_antialiasingThreshold =
	250	wxSystemOptions::GetOptionInt(wxT("mgl.aa-threshold"));
	251	wxLogTrace("mgl_font", "AA threshold set to %i", gs_antialiasingThreshold);
	252	#endif
	253	}
	254
	255	// Small characters don't look good when antialiased with the algorithm
	256	// that FreeType uses (mere 2x2 supersampling), so lets disable it AA
	257	// completely for small fonts.
	258	if ( pt <= gs_antialiasingThreshold )
	259	antialiased = FALSE;
	260	else
	261	antialiased = (m_fontLib->fontLibType == MGL_BITMAPFONT_LIB) ? FALSE : aa;
	262
	263	slant = (((m_type & wxFONTFACE_ITALIC) == 0) &&
	264	(font->GetStyle() == wxSLANT \|\| font->GetStyle() == wxITALIC));
	265
	266	// FIXME_MGL -- MGL does not yet support slant, although the API is there
	267	slant = FALSE;
	268
	269	wxLogTrace("mgl_font", "requested instance of '%s' slant=%i pt=%0.1f aa=%i",
	270	m_fileName.mb_str(), slant, pt, antialiased);
	271
	272	wxMGLFontInstance *i;
	273	wxMGLFontInstanceList::Node *node;
	274
	275	for (node = m_instances->GetFirst(); node; node = node->GetNext())
	276	{
	277	i = node->GetData();
	278	if ( i->GetPt() == pt && i->GetSlant() == slant &&
	279	i->GetAA() == antialiased )
	280	{
	281	wxLogTrace("mgl_font", " got from cache: slant=%i pt=%0.1f aa=%i",
	282	i->GetSlant(), i->GetPt(), i->GetAA());
	283	return i;
	284	}
	285	}
	286
	287	i = new wxMGLFontInstance(this, pt, slant, antialiased);
	288	m_instances->Append(i);
	289	return i;
	290	}
	291
	292
	293	wxMGLFontFamily::wxMGLFontFamily(const font_info_t *info)
	294	{
	295	m_name = info->familyName;
	296	m_fontInfo = info;
	297
	298	if ( info->regularFace[0] == '\0' )
	299	m_fontLibs[wxFONTFACE_REGULAR] = NULL;
	300	else
	301	m_fontLibs[wxFONTFACE_REGULAR] =
	302	new wxMGLFontLibrary(info->regularFace, wxFONTFACE_REGULAR, this);
	303
	304	if ( info->italicFace[0] == '\0' )
	305	m_fontLibs[wxFONTFACE_ITALIC] = NULL;
	306	else
	307	m_fontLibs[wxFONTFACE_ITALIC] =
	308	new wxMGLFontLibrary(info->italicFace, wxFONTFACE_ITALIC, this);
	309
	310	if ( info->boldFace[0] == '\0' )
	311	m_fontLibs[wxFONTFACE_BOLD] = NULL;
	312	else
	313	m_fontLibs[wxFONTFACE_BOLD] =
	314	new wxMGLFontLibrary(info->boldFace, wxFONTFACE_BOLD, this);
	315
	316	if ( info->boldItalicFace[0] == '\0' )
	317	m_fontLibs[wxFONTFACE_BOLD_ITALIC] = NULL;
	318	else
	319	m_fontLibs[wxFONTFACE_BOLD_ITALIC] =
	320	new wxMGLFontLibrary(info->boldItalicFace, wxFONTFACE_BOLD_ITALIC, this);
	321
	322	wxLogTrace("mgl_font", "new family '%s' (r=%s, i=%s, b=%s, bi=%s)\n",
	323	info->familyName, info->regularFace, info->italicFace,
	324	info->boldFace, info->boldItalicFace);
	325	}
	326
	327	wxMGLFontFamily::~wxMGLFontFamily()
	328	{
	329	for (size_t i = 0; i < wxFONTFACE_MAX; i++)
	330	delete m_fontLibs[i];
	331	}
	332
	333	bool wxMGLFontFamily::HasFace(int type) const
	334	{
	335	return (m_fontLibs[type] != NULL);
	336	}
	337
	338
	339	// ----------------------------------------------------------------------------
	340	// wxFontsManager
	341	// ----------------------------------------------------------------------------
	342
	343	wxMGLFontLibrary wxFontsManager::GetFontLibrary(wxFont font)
	344	{
	345	wxMGLFontFamily *family;
	346	int type;
	347	wxString facename = font->GetFaceName();
	348
	349	if ( !facename.IsEmpty() )
	350	family = GetFamily(facename);
	351	else
	352	family = NULL;
	353
	354	if ( !family )
	355	{
	356	facename.Empty();
	357	switch (font->GetFamily())
	358	{
	359	case wxSCRIPT:
	360	facename = wxT("Script");
	361	break;
	362	case wxDECORATIVE:
	363	facename = wxT("Charter");
	364	break;
	365	case wxROMAN:
	366	facename = wxT("Times");
	367	break;
	368	case wxTELETYPE:
	369	case wxMODERN:
	370	facename = wxT("Courier");
	371	break;
	372	case wxSWISS:
	373	facename = wxT("Helvetica");
	374	break;
	375	case wxDEFAULT:
	376	default:
	377	facename = wxT("Helvetica");
	378	break;
	379	}
	380
	381	family = GetFamily(facename);
	382	if ( !family )
	383	{
	384	if ( m_list->GetFirst() )
	385	family = m_list->GetFirst()->GetData();
	386	else
	387	wxFAIL_MSG(wxT("Fatal error, no fonts available!"));
	388	}
	389	}
	390
	391	type = wxFONTFACE_REGULAR;
	392
	393	if ( font->GetWeight() == wxBOLD )
	394	type \|= wxFONTFACE_BOLD;
	395
	396	// FIXME_MGL -- this should read "if ( font->GetStyle() == wxITALIC )",
	397	// but since MGL does not yet support slant, we try to display it with
	398	// italic face (better than nothing...)
	399	if ( font->GetStyle() == wxITALIC \|\| font->GetStyle() == wxSLANT )
	400	{
	401	if ( family->HasFace(type \| wxFONTFACE_ITALIC) )
	402	type \|= wxFONTFACE_ITALIC;
	403	}
	404	if ( !family->HasFace(type) )
	405	{
	406	for (int i = 0; i < wxFONTFACE_MAX; i++)
	407	if ( family->HasFace(i) )
	408	{
	409	type = i;
	410	break;
	411	}
	412	}
	413
	414	return family->GetLibrary(type);
	415	}
	416
	417	static ibool MGLAPI enum_callback(const font_info_t info, void cookie)
	418	{
	419	wxFontsManager db = (wxFontsManager)cookie;
	420	db->AddFamily(info);
	421	return TRUE;
	422	}
	423
	424	wxFontsManager::wxFontsManager()
	425	{
	426	m_hash = new wxHashTable(wxKEY_STRING);
	427	m_hash->DeleteContents(FALSE);
	428	m_list = new wxMGLFontFamilyList;
	429	m_list->DeleteContents(TRUE);
	430	MGL_enumerateFonts(enum_callback, (void*)this);
	431	}
	432
	433	wxFontsManager::~wxFontsManager()
	434	{
	435	delete m_hash;
	436	delete m_list;
	437	}
	438
	439	void wxFontsManager::AddFamily(const font_info_t *info)
	440	{
	441	wxMGLFontFamily *f = new wxMGLFontFamily(info);
	442	m_hash->Put(f->GetName().Lower(), f);
	443	m_list->Append(f);
	444	}
	445
	446	wxMGLFontFamily *wxFontsManager::GetFamily(const wxString& name) const
	447	{
	448	return (wxMGLFontFamily*)m_hash->Get(name.Lower());
	449	}
	450
	451
	452	wxFontsManager *wxTheFontsManager = NULL;