src/motif/font.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/motif/font.cpp
// Purpose:     wxFont class
// Author:      Julian Smart
// Modified by:
// Created:     17/09/98
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

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

#ifdef __VMS
#pragma message disable nosimpint
#include "wx/vms_x_fix.h"
#endif
#include <Xm/Xm.h>
#ifdef __VMS
#pragma message enable nosimpint
#endif

#include "wx/font.h"

#ifndef WX_PRECOMP
    #include "wx/string.h"
    #include "wx/utils.h"       // for wxGetDisplay()
    #include "wx/settings.h"
    #include "wx/gdicmn.h"
#endif

#include "wx/fontutil.h"    // for wxNativeFontInfo
#include "wx/tokenzr.h"
#include "wx/motif/private.h"

IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)

// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------

// For every wxFont, there must be a font for each display and scale requested.
// So these objects are stored in wxFontRefData::m_fonts
class wxXFont : public wxObject
{
public:
    wxXFont();
    ~wxXFont();

#if !wxMOTIF_NEW_FONT_HANDLING
    WXFontStructPtr     m_fontStruct;   // XFontStruct
#endif
#if !wxMOTIF_USE_RENDER_TABLE && !wxMOTIF_NEW_FONT_HANDLING
    WXFontList          m_fontList;     // Motif XmFontList
#else // if wxUSE_RENDER_TABLE
    WXRenderTable       m_renderTable;  // Motif XmRenderTable
    WXRendition         m_rendition;    // Motif XmRendition
#endif
    WXDisplay*          m_display;      // XDisplay
    int                 m_scale;        // Scale * 100
};

class wxFontRefData: public wxGDIRefData
{
    friend class wxFont;

public:
    wxFontRefData(int size = wxDEFAULT,
                  int family = wxDEFAULT,
                  int style = wxDEFAULT,
                  int weight = wxDEFAULT,
                  bool underlined = false,
                  const wxString& faceName = wxEmptyString,
                  wxFontEncoding encoding = wxFONTENCODING_DEFAULT)
    {
        Init(size, family, style, weight, underlined, faceName, encoding);
    }

    wxFontRefData(const wxFontRefData& data)
    {
        Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
             data.m_underlined, data.m_faceName, data.m_encoding);
    }

    ~wxFontRefData();

protected:
    // common part of all ctors
    void Init(int size,
              int family,
              int style,
              int weight,
              bool underlined,
              const wxString& faceName,
              wxFontEncoding encoding);

    // font attributes
    int           m_pointSize;
    int           m_family;
    int           m_style;
    int           m_weight;
    bool          m_underlined;
    wxString      m_faceName;
    wxFontEncoding m_encoding;

    wxNativeFontInfo m_nativeFontInfo;

    // A list of wxXFonts
    wxList        m_fonts;
};

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

// ----------------------------------------------------------------------------
// wxXFont
// ----------------------------------------------------------------------------

wxXFont::wxXFont()
{
#if !wxMOTIF_NEW_FONT_HANDLING
    m_fontStruct = (WXFontStructPtr) 0;
#endif
#if !wxMOTIF_USE_RENDER_TABLE && !wxMOTIF_NEW_FONT_HANDLING
    m_fontList = (WXFontList) 0;
#else // if wxMOTIF_USE_RENDER_TABLE
    m_renderTable = (WXRenderTable) 0;
    m_rendition   = (WXRendition) 0;
#endif
    m_display = (WXDisplay*) 0;
    m_scale = 100;
}

wxXFont::~wxXFont()
{
#if !wxMOTIF_USE_RENDER_TABLE
    if (m_fontList)
        XmFontListFree ((XmFontList) m_fontList);
    m_fontList = NULL;
#else // if wxUSE_RENDER_TABLE
    if (m_renderTable)
        XmRenderTableFree ((XmRenderTable) m_renderTable);
    m_renderTable = NULL;
#endif

    // TODO: why does freeing the font produce a segv???
    // Note that XFreeFont wasn't called in wxWin 1.68 either.
    // MBN: probably some interaction with fonts being still
    //      in use in some widgets...
    // XFontStruct* fontStruct = (XFontStruct*) m_fontStruct;
    //        XFreeFont((Display*) m_display, fontStruct);
}

// ----------------------------------------------------------------------------
// wxFontRefData
// ----------------------------------------------------------------------------

void wxFontRefData::Init(int pointSize,
                         int family,
                         int style,
                         int weight,
                         bool underlined,
                         const wxString& faceName,
                         wxFontEncoding encoding)
{
    if (family == wxDEFAULT)
        m_family = wxSWISS;
    else
        m_family = family;

    m_faceName = faceName;

    if (style == wxDEFAULT)
        m_style = wxNORMAL;
    else
        m_style = style;

    if (weight == wxDEFAULT)
        m_weight = wxNORMAL;
    else
        m_weight = weight;

    if (pointSize == wxDEFAULT)
        m_pointSize = 12;
    else
        m_pointSize = pointSize;

    m_underlined = underlined;
    m_encoding = encoding;
}

wxFontRefData::~wxFontRefData()
{
    wxList::compatibility_iterator node = m_fonts.GetFirst();
    while (node)
    {
        wxXFont* f = (wxXFont*) node->GetData();
        delete f;
        node = node->GetNext();
    }
    m_fonts.Clear();
}

// ----------------------------------------------------------------------------
// wxFont
// ----------------------------------------------------------------------------

wxFont::wxFont(const wxNativeFontInfo& info)
{
    (void)Create(info.GetXFontName());
}

bool wxFont::Create(int pointSize,
                    int family,
                    int style,
                    int weight,
                    bool underlined,
                    const wxString& faceName,
                    wxFontEncoding encoding)
{
    UnRef();
    m_refData = new wxFontRefData(pointSize, family, style, weight,
                                  underlined, faceName, encoding);

    return true;
}

bool wxFont::Create(const wxString& fontname, wxFontEncoding enc)
{
    if( !fontname )
    {
        *this = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT);
        return true;
    }

    m_refData = new wxFontRefData();

    M_FONTDATA->m_nativeFontInfo.SetXFontName(fontname);  // X font name

    wxString tmp;

    wxStringTokenizer tn( fontname, wxT("-") );

    tn.GetNextToken();                           // skip initial empty token
    tn.GetNextToken();                           // foundry


    M_FONTDATA->m_faceName = tn.GetNextToken();  // family

    tmp = tn.GetNextToken().MakeUpper();         // weight
    if (tmp == wxT("BOLD")) M_FONTDATA->m_weight = wxBOLD;
    if (tmp == wxT("BLACK")) M_FONTDATA->m_weight = wxBOLD;
    if (tmp == wxT("EXTRABOLD")) M_FONTDATA->m_weight = wxBOLD;
    if (tmp == wxT("DEMIBOLD")) M_FONTDATA->m_weight = wxBOLD;
    if (tmp == wxT("ULTRABOLD")) M_FONTDATA->m_weight = wxBOLD;

    if (tmp == wxT("LIGHT")) M_FONTDATA->m_weight = wxLIGHT;
    if (tmp == wxT("THIN")) M_FONTDATA->m_weight = wxLIGHT;

    tmp = tn.GetNextToken().MakeUpper();        // slant
    if (tmp == wxT("I")) M_FONTDATA->m_style = wxITALIC;
    if (tmp == wxT("O")) M_FONTDATA->m_style = wxITALIC;

    tn.GetNextToken();                           // set width
    tn.GetNextToken();                           // add. style
    tn.GetNextToken();                           // pixel size

    tmp = tn.GetNextToken();                     // pointsize
    if (tmp != wxT("*"))
    {
        long num = wxStrtol (tmp.c_str(), (wxChar **) NULL, 10);
        M_FONTDATA->m_pointSize = (int)(num / 10);
    }

    tn.GetNextToken();                           // x-res
    tn.GetNextToken();                           // y-res

    tmp = tn.GetNextToken().MakeUpper();         // spacing

    if (tmp == wxT("M"))
        M_FONTDATA->m_family = wxMODERN;
    else if (M_FONTDATA->m_faceName == wxT("TIMES"))
        M_FONTDATA->m_family = wxROMAN;
    else if (M_FONTDATA->m_faceName == wxT("HELVETICA"))
        M_FONTDATA->m_family = wxSWISS;
    else if (M_FONTDATA->m_faceName == wxT("LUCIDATYPEWRITER"))
        M_FONTDATA->m_family = wxTELETYPE;
    else if (M_FONTDATA->m_faceName == wxT("LUCIDA"))
        M_FONTDATA->m_family = wxDECORATIVE;
    else if (M_FONTDATA->m_faceName == wxT("UTOPIA"))
        M_FONTDATA->m_family = wxSCRIPT;

    tn.GetNextToken();                           // avg width

    // deal with font encoding
    M_FONTDATA->m_encoding = enc;
    if ( M_FONTDATA->m_encoding == wxFONTENCODING_SYSTEM )
    {
        wxString registry = tn.GetNextToken().MakeUpper(),
                 encoding = tn.GetNextToken().MakeUpper();

        if ( registry == _T("ISO8859") )
        {
            int cp;
            if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 )
            {
                M_FONTDATA->m_encoding =
                    (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1);
            }
        }
        else if ( registry == _T("MICROSOFT") )
        {
            int cp;
            if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 )
            {
                M_FONTDATA->m_encoding =
                    (wxFontEncoding)(wxFONTENCODING_CP1250 + cp);
            }
        }
        else if ( registry == _T("KOI8") )
        {
            M_FONTDATA->m_encoding = wxFONTENCODING_KOI8;
        }
        //else: unknown encoding - may be give a warning here?
        else
            return false;
    }
    return true;
}

wxFont::~wxFont()
{
}

// ----------------------------------------------------------------------------
// change the font attributes
// ----------------------------------------------------------------------------

void wxFont::Unshare()
{
    // Don't change shared data
    if (!m_refData)
    {
        m_refData = new wxFontRefData();
    }
    else
    {
        wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
        UnRef();
        m_refData = ref;
    }
}

void wxFont::SetPointSize(int pointSize)
{
    Unshare();

    M_FONTDATA->m_pointSize = pointSize;
    M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
}

void wxFont::SetFamily(int family)
{
    Unshare();

    M_FONTDATA->m_family = family;
    M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
}

void wxFont::SetStyle(int style)
{
    Unshare();

    M_FONTDATA->m_style = style;
    M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
}

void wxFont::SetWeight(int weight)
{
    Unshare();

    M_FONTDATA->m_weight = weight;
    M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
}

bool wxFont::SetFaceName(const wxString& faceName)
{
    Unshare();

    M_FONTDATA->m_faceName = faceName;
    M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now

    return wxFontBase::SetFaceName(faceName);
}

void wxFont::SetUnderlined(bool underlined)
{
    Unshare();

    M_FONTDATA->m_underlined = underlined;
}

void wxFont::SetEncoding(wxFontEncoding encoding)
{
    Unshare();

    M_FONTDATA->m_encoding = encoding;
    M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
}

void wxFont::DoSetNativeFontInfo(const wxNativeFontInfo& info)
{
    Unshare();

    M_FONTDATA->m_nativeFontInfo = info;
}

// ----------------------------------------------------------------------------
// query font attributes
// ----------------------------------------------------------------------------

int wxFont::GetPointSize() const
{
    wxCHECK_MSG( Ok(), 0, wxT("invalid font") );

    return M_FONTDATA->m_pointSize;
}

wxString wxFont::GetFaceName() const
{
    wxCHECK_MSG( Ok(), wxEmptyString, wxT("invalid font") );

    return M_FONTDATA->m_faceName ;
}

int wxFont::GetFamily() const
{
    wxCHECK_MSG( Ok(), 0, wxT("invalid font") );

    return M_FONTDATA->m_family;
}

int wxFont::GetStyle() const
{
    wxCHECK_MSG( Ok(), 0, wxT("invalid font") );

    return M_FONTDATA->m_style;
}

int wxFont::GetWeight() const
{
    wxCHECK_MSG( Ok(), 0, wxT("invalid font") );

    return M_FONTDATA->m_weight;
}

bool wxFont::GetUnderlined() const
{
    wxCHECK_MSG( Ok(), false, wxT("invalid font") );

    return M_FONTDATA->m_underlined;
}

wxFontEncoding wxFont::GetEncoding() const
{
    wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );

    return M_FONTDATA->m_encoding;
}

const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
{
    wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );

    if(M_FONTDATA->m_nativeFontInfo.GetXFontName().empty())
        GetInternalFont();

    return &(M_FONTDATA->m_nativeFontInfo);
}

// ----------------------------------------------------------------------------
// real implementation
// ----------------------------------------------------------------------------

// Find an existing, or create a new, XFontStruct
// based on this wxFont and the given scale. Append the
// font to list in the private data for future reference.
wxXFont* wxFont::GetInternalFont(double scale, WXDisplay* display) const
{
    if ( !Ok() )
        return (wxXFont *)NULL;

    long intScale = long(scale * 100.0 + 0.5); // key for wxXFont
    int pointSize = (M_FONTDATA->m_pointSize * 10 * intScale) / 100;

    // search existing fonts first
    wxList::compatibility_iterator node = M_FONTDATA->m_fonts.GetFirst();
    while (node)
    {
        wxXFont* f = (wxXFont*) node->GetData();
        if ((!display || (f->m_display == display)) && (f->m_scale == intScale))
            return f;
        node = node->GetNext();
    }

    // not found, create a new one
    wxString xFontSpec;
    XFontStruct *font = (XFontStruct *)
                        wxLoadQueryNearestFont(pointSize,
                                               M_FONTDATA->m_family,
                                               M_FONTDATA->m_style,
                                               M_FONTDATA->m_weight,
                                               M_FONTDATA->m_underlined,
                                               wxT(""),
                                               M_FONTDATA->m_encoding,
                                               &xFontSpec);

    if ( !font )
    {
        wxFAIL_MSG( wxT("Could not allocate even a default font -- something is wrong.") );

        return (wxXFont*) NULL;
    }

    wxXFont* f = new wxXFont;
#if wxMOTIF_NEW_FONT_HANDLING
    XFreeFont( (Display*) display, font );
#else
    f->m_fontStruct = (WXFontStructPtr)font;
#endif
    f->m_display = ( display ? display : wxGetDisplay() );
    f->m_scale = intScale;

#if wxMOTIF_USE_RENDER_TABLE
    XmRendition rendition;
    XmRenderTable renderTable;
    Arg args[5];
    int count = 0;

#if wxMOTIF_NEW_FONT_HANDLING
    wxChar* fontSpec = wxStrdup( xFontSpec.c_str() );
    XtSetArg( args[count], XmNfontName, fontSpec ); ++count;
    XtSetArg( args[count], XmNfontType, XmFONT_IS_FONTSET ); ++count;
#else
    XtSetArg( args[count], XmNfont, font ); ++count;
#endif
    XtSetArg( args[count], XmNunderlineType,
              GetUnderlined() ? XmSINGLE_LINE : XmNO_LINE ); ++count;
    rendition = XmRenditionCreate( XmGetXmDisplay( (Display*)f->m_display ),
                                   (XmStringTag)"",
                                   args, count );
    renderTable = XmRenderTableAddRenditions( NULL, &rendition, 1,
                                              XmMERGE_REPLACE );

    f->m_renderTable = (WXRenderTable)renderTable;
    f->m_rendition = (WXRendition)rendition;
    wxASSERT( f->m_renderTable != NULL );
#else // if !wxMOTIF_USE_RENDER_TABLE
    f->m_fontList = XmFontListCreate ((XFontStruct*) font, XmSTRING_DEFAULT_CHARSET);
    wxASSERT( f->m_fontList != NULL );
#endif

    M_FONTDATA->m_fonts.Append(f);

    return f;
}

#if !wxMOTIF_NEW_FONT_HANDLING

WXFontStructPtr wxFont::GetFontStruct(double scale, WXDisplay* display) const
{
    wxXFont* f = GetInternalFont(scale, display);

    return (f ? f->m_fontStruct : (WXFontStructPtr) 0);
}

#endif

#if !wxMOTIF_USE_RENDER_TABLE

WXFontList wxFont::GetFontList(double scale, WXDisplay* display) const
{
    wxXFont* f = GetInternalFont(scale, display);

    return (f ? f->m_fontList : (WXFontList) 0);
}

#else // if wxMOTIF_USE_RENDER_TABLE

WXRenderTable wxFont::GetRenderTable(WXDisplay* display) const
{
    wxXFont* f = GetInternalFont(1.0, display);

    return (f ? f->m_renderTable : (WXRenderTable) 0);
}

#endif // wxMOTIF_USE_RENDER_TABLE

WXFontType wxFont::GetFontType(WXDisplay* display) const
{
#if wxMOTIF_USE_RENDER_TABLE
    return Ok() ? GetRenderTable(display) : NULL;
#else
    return Ok() ? GetFontList(1.0, display) : NULL;
#endif
}

WXFontType wxFont::GetFontTypeC(WXDisplay* display) const
{
#if wxMOTIF_USE_RENDER_TABLE
    return Ok() ? GetRenderTable(display) : NULL;
#else
    return Ok() ? XmFontListCopy( (XmFontList)GetFontList(1.0, display) ) : NULL;
#endif
}

/*static*/ WXString wxFont::GetFontTag()
{
#if wxMOTIF_USE_RENDER_TABLE
    return (WXString)XmNrenderTable;
#else
    return (WXString)XmNfontList;
#endif
}

#if wxMOTIF_NEW_FONT_HANDLING

WXFontSet wxFont::GetFontSet(double scale, WXDisplay* display) const
{
    wxXFont* f = GetInternalFont(scale, display);

    if( !f ) return (WXFontSet) 0;

    Arg args[2];
    int count = 0;

    XtSetArg( args[count], XmNfont, 0 ); ++count;
    XmRenditionRetrieve( (XmRendition) f->m_rendition, args, count );

    return (WXFontSet) args[0].value;
}

void wxGetTextExtent(WXDisplay* display, const wxFont& font, double scale,
                     const wxString& str,
                     int* width, int* height, int* ascent, int* descent)
{
    XRectangle ink, logical;
    WXFontSet fset = font.GetFontSet(scale, display);

    XmbTextExtents( (XFontSet)fset, str.c_str(), str.length(), &ink, &logical);

    if( width ) *width = logical.width;
    if( height ) *height = logical.height;
    if( ascent ) *ascent = -logical.y;
    if( descent ) *descent = logical.height + logical.y;
}

#else // if !wxMOTIF_NEW_FONT_HANDLING

void wxGetTextExtent(WXDisplay* display, const wxFont& font,
                     double scale, const wxString& str,
                     int* width, int* height, int* ascent, int* descent)
{
    WXFontStructPtr pFontStruct = font.GetFontStruct(scale, display);

    int direction, ascent2, descent2;
    XCharStruct overall;
    int slen = str.length();

    XTextExtents((XFontStruct*) pFontStruct, (char*) str.c_str(), slen,
                 &direction, &ascent2, &descent2, &overall);

    if ( width )
        *width = (overall.width);
    if ( height )
        *height = (ascent2 + descent2);
    if ( descent )
        *descent = descent2;
    if ( ascent )
        *ascent = ascent2;
}

#endif // !wxMOTIF_NEW_FONT_HANDLING
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/motif/font.cpp
	3	// Purpose: wxFont class
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 17/09/98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	// For compilers that support precompilation, includes "wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#ifdef __VMS
	24	#pragma message disable nosimpint
	25	#include "wx/vms_x_fix.h"
	26	#endif
	27	#include <Xm/Xm.h>
	28	#ifdef __VMS
	29	#pragma message enable nosimpint
	30	#endif
	31
	32	#include "wx/font.h"
	33
	34	#ifndef WX_PRECOMP
	35	#include "wx/string.h"
	36	#include "wx/utils.h" // for wxGetDisplay()
	37	#include "wx/settings.h"
	38	#include "wx/gdicmn.h"
	39	#endif
	40
	41	#include "wx/fontutil.h" // for wxNativeFontInfo
	42	#include "wx/tokenzr.h"
	43	#include "wx/motif/private.h"
	44
	45	IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
	46
	47	// ----------------------------------------------------------------------------
	48	// private classes
	49	// ----------------------------------------------------------------------------
	50
	51	// For every wxFont, there must be a font for each display and scale requested.
	52	// So these objects are stored in wxFontRefData::m_fonts
	53	class wxXFont : public wxObject
	54	{
	55	public:
	56	wxXFont();
	57	~wxXFont();
	58
	59	#if !wxMOTIF_NEW_FONT_HANDLING
	60	WXFontStructPtr m_fontStruct; // XFontStruct
	61	#endif
	62	#if !wxMOTIF_USE_RENDER_TABLE && !wxMOTIF_NEW_FONT_HANDLING
	63	WXFontList m_fontList; // Motif XmFontList
	64	#else // if wxUSE_RENDER_TABLE
	65	WXRenderTable m_renderTable; // Motif XmRenderTable
	66	WXRendition m_rendition; // Motif XmRendition
	67	#endif
	68	WXDisplay* m_display; // XDisplay
	69	int m_scale; // Scale * 100
	70	};
	71
	72	class wxFontRefData: public wxGDIRefData
	73	{
	74	friend class wxFont;
	75
	76	public:
	77	wxFontRefData(int size = wxDEFAULT,
	78	int family = wxDEFAULT,
	79	int style = wxDEFAULT,
	80	int weight = wxDEFAULT,
	81	bool underlined = false,
	82	const wxString& faceName = wxEmptyString,
	83	wxFontEncoding encoding = wxFONTENCODING_DEFAULT)
	84	{
	85	Init(size, family, style, weight, underlined, faceName, encoding);
	86	}
	87
	88	wxFontRefData(const wxFontRefData& data)
	89	{
	90	Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
	91	data.m_underlined, data.m_faceName, data.m_encoding);
	92	}
	93
	94	~wxFontRefData();
	95
	96	protected:
	97	// common part of all ctors
	98	void Init(int size,
	99	int family,
	100	int style,
	101	int weight,
	102	bool underlined,
	103	const wxString& faceName,
	104	wxFontEncoding encoding);
	105
	106	// font attributes
	107	int m_pointSize;
	108	int m_family;
	109	int m_style;
	110	int m_weight;
	111	bool m_underlined;
	112	wxString m_faceName;
	113	wxFontEncoding m_encoding;
	114
	115	wxNativeFontInfo m_nativeFontInfo;
	116
	117	// A list of wxXFonts
	118	wxList m_fonts;
	119	};
	120
	121	// ============================================================================
	122	// implementation
	123	// ============================================================================
	124
	125	// ----------------------------------------------------------------------------
	126	// wxXFont
	127	// ----------------------------------------------------------------------------
	128
	129	wxXFont::wxXFont()
	130	{
	131	#if !wxMOTIF_NEW_FONT_HANDLING
	132	m_fontStruct = (WXFontStructPtr) 0;
	133	#endif
	134	#if !wxMOTIF_USE_RENDER_TABLE && !wxMOTIF_NEW_FONT_HANDLING
	135	m_fontList = (WXFontList) 0;
	136	#else // if wxMOTIF_USE_RENDER_TABLE
	137	m_renderTable = (WXRenderTable) 0;
	138	m_rendition = (WXRendition) 0;
	139	#endif
	140	m_display = (WXDisplay*) 0;
	141	m_scale = 100;
	142	}
	143
	144	wxXFont::~wxXFont()
	145	{
	146	#if !wxMOTIF_USE_RENDER_TABLE
	147	if (m_fontList)
	148	XmFontListFree ((XmFontList) m_fontList);
	149	m_fontList = NULL;
	150	#else // if wxUSE_RENDER_TABLE
	151	if (m_renderTable)
	152	XmRenderTableFree ((XmRenderTable) m_renderTable);
	153	m_renderTable = NULL;
	154	#endif
	155
	156	// TODO: why does freeing the font produce a segv???
	157	// Note that XFreeFont wasn't called in wxWin 1.68 either.
	158	// MBN: probably some interaction with fonts being still
	159	// in use in some widgets...
	160	// XFontStruct* fontStruct = (XFontStruct*) m_fontStruct;
	161	// XFreeFont((Display*) m_display, fontStruct);
	162	}
	163
	164	// ----------------------------------------------------------------------------
	165	// wxFontRefData
	166	// ----------------------------------------------------------------------------
	167
	168	void wxFontRefData::Init(int pointSize,
	169	int family,
	170	int style,
	171	int weight,
	172	bool underlined,
	173	const wxString& faceName,
	174	wxFontEncoding encoding)
	175	{
	176	if (family == wxDEFAULT)
	177	m_family = wxSWISS;
	178	else
	179	m_family = family;
	180
	181	m_faceName = faceName;
	182
	183	if (style == wxDEFAULT)
	184	m_style = wxNORMAL;
	185	else
	186	m_style = style;
	187
	188	if (weight == wxDEFAULT)
	189	m_weight = wxNORMAL;
	190	else
	191	m_weight = weight;
	192
	193	if (pointSize == wxDEFAULT)
	194	m_pointSize = 12;
	195	else
	196	m_pointSize = pointSize;
	197
	198	m_underlined = underlined;
	199	m_encoding = encoding;
	200	}
	201
	202	wxFontRefData::~wxFontRefData()
	203	{
	204	wxList::compatibility_iterator node = m_fonts.GetFirst();
	205	while (node)
	206	{
	207	wxXFont* f = (wxXFont*) node->GetData();
	208	delete f;
	209	node = node->GetNext();
	210	}
	211	m_fonts.Clear();
	212	}
	213
	214	// ----------------------------------------------------------------------------
	215	// wxFont
	216	// ----------------------------------------------------------------------------
	217
	218	wxFont::wxFont(const wxNativeFontInfo& info)
	219	{
	220	(void)Create(info.GetXFontName());
	221	}
	222
	223	bool wxFont::Create(int pointSize,
	224	int family,
	225	int style,
	226	int weight,
	227	bool underlined,
	228	const wxString& faceName,
	229	wxFontEncoding encoding)
	230	{
	231	UnRef();
	232	m_refData = new wxFontRefData(pointSize, family, style, weight,
	233	underlined, faceName, encoding);
	234
	235	return true;
	236	}
	237
	238	bool wxFont::Create(const wxString& fontname, wxFontEncoding enc)
	239	{
	240	if( !fontname )
	241	{
	242	*this = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT);
	243	return true;
	244	}
	245
	246	m_refData = new wxFontRefData();
	247
	248	M_FONTDATA->m_nativeFontInfo.SetXFontName(fontname); // X font name
	249
	250	wxString tmp;
	251
	252	wxStringTokenizer tn( fontname, wxT("-") );
	253
	254	tn.GetNextToken(); // skip initial empty token
	255	tn.GetNextToken(); // foundry
	256
	257
	258	M_FONTDATA->m_faceName = tn.GetNextToken(); // family
	259
	260	tmp = tn.GetNextToken().MakeUpper(); // weight
	261	if (tmp == wxT("BOLD")) M_FONTDATA->m_weight = wxBOLD;
	262	if (tmp == wxT("BLACK")) M_FONTDATA->m_weight = wxBOLD;
	263	if (tmp == wxT("EXTRABOLD")) M_FONTDATA->m_weight = wxBOLD;
	264	if (tmp == wxT("DEMIBOLD")) M_FONTDATA->m_weight = wxBOLD;
	265	if (tmp == wxT("ULTRABOLD")) M_FONTDATA->m_weight = wxBOLD;
	266
	267	if (tmp == wxT("LIGHT")) M_FONTDATA->m_weight = wxLIGHT;
	268	if (tmp == wxT("THIN")) M_FONTDATA->m_weight = wxLIGHT;
	269
	270	tmp = tn.GetNextToken().MakeUpper(); // slant
	271	if (tmp == wxT("I")) M_FONTDATA->m_style = wxITALIC;
	272	if (tmp == wxT("O")) M_FONTDATA->m_style = wxITALIC;
	273
	274	tn.GetNextToken(); // set width
	275	tn.GetNextToken(); // add. style
	276	tn.GetNextToken(); // pixel size
	277
	278	tmp = tn.GetNextToken(); // pointsize
	279	if (tmp != wxT("*"))
	280	{
	281	long num = wxStrtol (tmp.c_str(), (wxChar **) NULL, 10);
	282	M_FONTDATA->m_pointSize = (int)(num / 10);
	283	}
	284
	285	tn.GetNextToken(); // x-res
	286	tn.GetNextToken(); // y-res
	287
	288	tmp = tn.GetNextToken().MakeUpper(); // spacing
	289
	290	if (tmp == wxT("M"))
	291	M_FONTDATA->m_family = wxMODERN;
	292	else if (M_FONTDATA->m_faceName == wxT("TIMES"))
	293	M_FONTDATA->m_family = wxROMAN;
	294	else if (M_FONTDATA->m_faceName == wxT("HELVETICA"))
	295	M_FONTDATA->m_family = wxSWISS;
	296	else if (M_FONTDATA->m_faceName == wxT("LUCIDATYPEWRITER"))
	297	M_FONTDATA->m_family = wxTELETYPE;
	298	else if (M_FONTDATA->m_faceName == wxT("LUCIDA"))
	299	M_FONTDATA->m_family = wxDECORATIVE;
	300	else if (M_FONTDATA->m_faceName == wxT("UTOPIA"))
	301	M_FONTDATA->m_family = wxSCRIPT;
	302
	303	tn.GetNextToken(); // avg width
	304
	305	// deal with font encoding
	306	M_FONTDATA->m_encoding = enc;
	307	if ( M_FONTDATA->m_encoding == wxFONTENCODING_SYSTEM )
	308	{
	309	wxString registry = tn.GetNextToken().MakeUpper(),
	310	encoding = tn.GetNextToken().MakeUpper();
	311
	312	if ( registry == _T("ISO8859") )
	313	{
	314	int cp;
	315	if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 )
	316	{
	317	M_FONTDATA->m_encoding =
	318	(wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1);
	319	}
	320	}
	321	else if ( registry == _T("MICROSOFT") )
	322	{
	323	int cp;
	324	if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 )
	325	{
	326	M_FONTDATA->m_encoding =
	327	(wxFontEncoding)(wxFONTENCODING_CP1250 + cp);
	328	}
	329	}
	330	else if ( registry == _T("KOI8") )
	331	{
	332	M_FONTDATA->m_encoding = wxFONTENCODING_KOI8;
	333	}
	334	//else: unknown encoding - may be give a warning here?
	335	else
	336	return false;
	337	}
	338	return true;
	339	}
	340
	341	wxFont::~wxFont()
	342	{
	343	}
	344
	345	// ----------------------------------------------------------------------------
	346	// change the font attributes
	347	// ----------------------------------------------------------------------------
	348
	349	void wxFont::Unshare()
	350	{
	351	// Don't change shared data
	352	if (!m_refData)
	353	{
	354	m_refData = new wxFontRefData();
	355	}
	356	else
	357	{
	358	wxFontRefData* ref = new wxFontRefData((wxFontRefData)m_refData);
	359	UnRef();
	360	m_refData = ref;
	361	}
	362	}
	363
	364	void wxFont::SetPointSize(int pointSize)
	365	{
	366	Unshare();
	367
	368	M_FONTDATA->m_pointSize = pointSize;
	369	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	370	}
	371
	372	void wxFont::SetFamily(int family)
	373	{
	374	Unshare();
	375
	376	M_FONTDATA->m_family = family;
	377	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	378	}
	379
	380	void wxFont::SetStyle(int style)
	381	{
	382	Unshare();
	383
	384	M_FONTDATA->m_style = style;
	385	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	386	}
	387
	388	void wxFont::SetWeight(int weight)
	389	{
	390	Unshare();
	391
	392	M_FONTDATA->m_weight = weight;
	393	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	394	}
	395
	396	bool wxFont::SetFaceName(const wxString& faceName)
	397	{
	398	Unshare();
	399
	400	M_FONTDATA->m_faceName = faceName;
	401	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	402
	403	return wxFontBase::SetFaceName(faceName);
	404	}
	405
	406	void wxFont::SetUnderlined(bool underlined)
	407	{
	408	Unshare();
	409
	410	M_FONTDATA->m_underlined = underlined;
	411	}
	412
	413	void wxFont::SetEncoding(wxFontEncoding encoding)
	414	{
	415	Unshare();
	416
	417	M_FONTDATA->m_encoding = encoding;
	418	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	419	}
	420
	421	void wxFont::DoSetNativeFontInfo(const wxNativeFontInfo& info)
	422	{
	423	Unshare();
	424
	425	M_FONTDATA->m_nativeFontInfo = info;
	426	}
	427
	428	// ----------------------------------------------------------------------------
	429	// query font attributes
	430	// ----------------------------------------------------------------------------
	431
	432	int wxFont::GetPointSize() const
	433	{
	434	wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
	435
	436	return M_FONTDATA->m_pointSize;
	437	}
	438
	439	wxString wxFont::GetFaceName() const
	440	{
	441	wxCHECK_MSG( Ok(), wxEmptyString, wxT("invalid font") );
	442
	443	return M_FONTDATA->m_faceName ;
	444	}
	445
	446	int wxFont::GetFamily() const
	447	{
	448	wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
	449
	450	return M_FONTDATA->m_family;
	451	}
	452
	453	int wxFont::GetStyle() const
	454	{
	455	wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
	456
	457	return M_FONTDATA->m_style;
	458	}
	459
	460	int wxFont::GetWeight() const
	461	{
	462	wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
	463
	464	return M_FONTDATA->m_weight;
	465	}
	466
	467	bool wxFont::GetUnderlined() const
	468	{
	469	wxCHECK_MSG( Ok(), false, wxT("invalid font") );
	470
	471	return M_FONTDATA->m_underlined;
	472	}
	473
	474	wxFontEncoding wxFont::GetEncoding() const
	475	{
	476	wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
	477
	478	return M_FONTDATA->m_encoding;
	479	}
	480
	481	const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
	482	{
	483	wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );
	484
	485	if(M_FONTDATA->m_nativeFontInfo.GetXFontName().empty())
	486	GetInternalFont();
	487
	488	return &(M_FONTDATA->m_nativeFontInfo);
	489	}
	490
	491	// ----------------------------------------------------------------------------
	492	// real implementation
	493	// ----------------------------------------------------------------------------
	494
	495	// Find an existing, or create a new, XFontStruct
	496	// based on this wxFont and the given scale. Append the
	497	// font to list in the private data for future reference.
	498	wxXFont* wxFont::GetInternalFont(double scale, WXDisplay* display) const
	499	{
	500	if ( !Ok() )
	501	return (wxXFont *)NULL;
	502
	503	long intScale = long(scale * 100.0 + 0.5); // key for wxXFont
	504	int pointSize = (M_FONTDATA->m_pointSize * 10 * intScale) / 100;
	505
	506	// search existing fonts first
	507	wxList::compatibility_iterator node = M_FONTDATA->m_fonts.GetFirst();
	508	while (node)
	509	{
	510	wxXFont* f = (wxXFont*) node->GetData();
	511	if ((!display \|\| (f->m_display == display)) && (f->m_scale == intScale))
	512	return f;
	513	node = node->GetNext();
	514	}
	515
	516	// not found, create a new one
	517	wxString xFontSpec;
	518	XFontStruct font = (XFontStruct )
	519	wxLoadQueryNearestFont(pointSize,
	520	M_FONTDATA->m_family,
	521	M_FONTDATA->m_style,
	522	M_FONTDATA->m_weight,
	523	M_FONTDATA->m_underlined,
	524	wxT(""),
	525	M_FONTDATA->m_encoding,
	526	&xFontSpec);
	527
	528	if ( !font )
	529	{
	530	wxFAIL_MSG( wxT("Could not allocate even a default font -- something is wrong.") );
	531
	532	return (wxXFont*) NULL;
	533	}
	534
	535	wxXFont* f = new wxXFont;
	536	#if wxMOTIF_NEW_FONT_HANDLING
	537	XFreeFont( (Display*) display, font );
	538	#else
	539	f->m_fontStruct = (WXFontStructPtr)font;
	540	#endif
	541	f->m_display = ( display ? display : wxGetDisplay() );
	542	f->m_scale = intScale;
	543
	544	#if wxMOTIF_USE_RENDER_TABLE
	545	XmRendition rendition;
	546	XmRenderTable renderTable;
	547	Arg args[5];
	548	int count = 0;
	549
	550	#if wxMOTIF_NEW_FONT_HANDLING
	551	wxChar* fontSpec = wxStrdup( xFontSpec.c_str() );
	552	XtSetArg( args[count], XmNfontName, fontSpec ); ++count;
	553	XtSetArg( args[count], XmNfontType, XmFONT_IS_FONTSET ); ++count;
	554	#else
	555	XtSetArg( args[count], XmNfont, font ); ++count;
	556	#endif
	557	XtSetArg( args[count], XmNunderlineType,
	558	GetUnderlined() ? XmSINGLE_LINE : XmNO_LINE ); ++count;
	559	rendition = XmRenditionCreate( XmGetXmDisplay( (Display*)f->m_display ),
	560	(XmStringTag)"",
	561	args, count );
	562	renderTable = XmRenderTableAddRenditions( NULL, &rendition, 1,
	563	XmMERGE_REPLACE );
	564
	565	f->m_renderTable = (WXRenderTable)renderTable;
	566	f->m_rendition = (WXRendition)rendition;
	567	wxASSERT( f->m_renderTable != NULL );
	568	#else // if !wxMOTIF_USE_RENDER_TABLE
	569	f->m_fontList = XmFontListCreate ((XFontStruct*) font, XmSTRING_DEFAULT_CHARSET);
	570	wxASSERT( f->m_fontList != NULL );
	571	#endif
	572
	573	M_FONTDATA->m_fonts.Append(f);
	574
	575	return f;
	576	}
	577
	578	#if !wxMOTIF_NEW_FONT_HANDLING
	579
	580	WXFontStructPtr wxFont::GetFontStruct(double scale, WXDisplay* display) const
	581	{
	582	wxXFont* f = GetInternalFont(scale, display);
	583
	584	return (f ? f->m_fontStruct : (WXFontStructPtr) 0);
	585	}
	586
	587	#endif
	588
	589	#if !wxMOTIF_USE_RENDER_TABLE
	590
	591	WXFontList wxFont::GetFontList(double scale, WXDisplay* display) const
	592	{
	593	wxXFont* f = GetInternalFont(scale, display);
	594
	595	return (f ? f->m_fontList : (WXFontList) 0);
	596	}
	597
	598	#else // if wxMOTIF_USE_RENDER_TABLE
	599
	600	WXRenderTable wxFont::GetRenderTable(WXDisplay* display) const
	601	{
	602	wxXFont* f = GetInternalFont(1.0, display);
	603
	604	return (f ? f->m_renderTable : (WXRenderTable) 0);
	605	}
	606
	607	#endif // wxMOTIF_USE_RENDER_TABLE
	608
	609	WXFontType wxFont::GetFontType(WXDisplay* display) const
	610	{
	611	#if wxMOTIF_USE_RENDER_TABLE
	612	return Ok() ? GetRenderTable(display) : NULL;
	613	#else
	614	return Ok() ? GetFontList(1.0, display) : NULL;
	615	#endif
	616	}
	617
	618	WXFontType wxFont::GetFontTypeC(WXDisplay* display) const
	619	{
	620	#if wxMOTIF_USE_RENDER_TABLE
	621	return Ok() ? GetRenderTable(display) : NULL;
	622	#else
	623	return Ok() ? XmFontListCopy( (XmFontList)GetFontList(1.0, display) ) : NULL;
	624	#endif
	625	}
	626
	627	/static/ WXString wxFont::GetFontTag()
	628	{
	629	#if wxMOTIF_USE_RENDER_TABLE
	630	return (WXString)XmNrenderTable;
	631	#else
	632	return (WXString)XmNfontList;
	633	#endif
	634	}
	635
	636	#if wxMOTIF_NEW_FONT_HANDLING
	637
	638	WXFontSet wxFont::GetFontSet(double scale, WXDisplay* display) const
	639	{
	640	wxXFont* f = GetInternalFont(scale, display);
	641
	642	if( !f ) return (WXFontSet) 0;
	643
	644	Arg args[2];
	645	int count = 0;
	646
	647	XtSetArg( args[count], XmNfont, 0 ); ++count;
	648	XmRenditionRetrieve( (XmRendition) f->m_rendition, args, count );
	649
	650	return (WXFontSet) args[0].value;
	651	}
	652
	653	void wxGetTextExtent(WXDisplay* display, const wxFont& font, double scale,
	654	const wxString& str,
	655	int* width, int* height, int* ascent, int* descent)
	656	{
	657	XRectangle ink, logical;
	658	WXFontSet fset = font.GetFontSet(scale, display);
	659
	660	XmbTextExtents( (XFontSet)fset, str.c_str(), str.length(), &ink, &logical);
	661
	662	if( width ) *width = logical.width;
	663	if( height ) *height = logical.height;
	664	if( ascent ) *ascent = -logical.y;
	665	if( descent ) *descent = logical.height + logical.y;
	666	}
	667
	668	#else // if !wxMOTIF_NEW_FONT_HANDLING
	669
	670	void wxGetTextExtent(WXDisplay* display, const wxFont& font,
	671	double scale, const wxString& str,
	672	int* width, int* height, int* ascent, int* descent)
	673	{
	674	WXFontStructPtr pFontStruct = font.GetFontStruct(scale, display);
	675
	676	int direction, ascent2, descent2;
	677	XCharStruct overall;
	678	int slen = str.length();
	679
	680	XTextExtents((XFontStruct) pFontStruct, (char) str.c_str(), slen,
	681	&direction, &ascent2, &descent2, &overall);
	682
	683	if ( width )
	684	*width = (overall.width);
	685	if ( height )
	686	*height = (ascent2 + descent2);
	687	if ( descent )
	688	*descent = descent2;
	689	if ( ascent )
	690	*ascent = ascent2;
	691	}
	692
	693	#endif // !wxMOTIF_NEW_FONT_HANDLING