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();
    virtual ~wxXFont();

#if !wxMOTIF_NEW_FONT_HANDLING
    WXFontStructPtr     m_fontStruct;   // XFontStruct
#endif
#if !wxMOTIF_USE_RENDER_TABLE
    WXFontList          m_fontList;     // Motif XmFontList
#else // if wxMOTIF_USE_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,
                  wxFontFamily family = wxFONTFAMILY_DEFAULT,
                  wxFontStyle style = wxFONTSTYLE_NORMAL,
                  wxFontWeight weight = wxFONTWEIGHT_NORMAL,
                  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);
    }

    virtual ~wxFontRefData();

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

    // font attributes
    int           m_pointSize;
    wxFontFamily  m_family;
    wxFontStyle   m_style;
    wxFontWeight  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
    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 wxMOTIF_USE_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,
                         wxFontFamily family,
                         wxFontStyle style,
                         wxFontWeight weight,
                         bool underlined,
                         const wxString& faceName,
                         wxFontEncoding encoding)
{
    if (family == wxDEFAULT)
        m_family = wxFONTFAMILY_SWISS;
    else
        m_family = family;

    m_faceName = faceName;

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

    if (weight == wxDEFAULT)
        m_weight = wxFONTWEIGHT_NORMAL;
    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();
}

#define M_FONTDATA ((wxFontRefData*)m_refData)

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

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

bool wxFont::Create(int pointSize,
                    wxFontFamily family,
                    wxFontStyle style,
                    wxFontWeight 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 = wxFONTWEIGHT_BOLD;
    if (tmp == wxT("BLACK")) M_FONTDATA->m_weight = wxFONTWEIGHT_BOLD;
    if (tmp == wxT("EXTRABOLD")) M_FONTDATA->m_weight = wxFONTWEIGHT_BOLD;
    if (tmp == wxT("DEMIBOLD")) M_FONTDATA->m_weight = wxFONTWEIGHT_BOLD;
    if (tmp == wxT("ULTRABOLD")) M_FONTDATA->m_weight = wxFONTWEIGHT_BOLD;

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

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

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

    tmp = tn.GetNextToken();                     // pointsize
    if (tmp != wxT("*"))
    {
        long num = wxStrtol (tmp.mb_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 = wxFONTFAMILY_MODERN;
    else if (M_FONTDATA->m_faceName == wxT("TIMES"))
        M_FONTDATA->m_family = wxFONTFAMILY_ROMAN;
    else if (M_FONTDATA->m_faceName == wxT("HELVETICA"))
        M_FONTDATA->m_family = wxFONTFAMILY_SWISS;
    else if (M_FONTDATA->m_faceName == wxT("LUCIDATYPEWRITER"))
        M_FONTDATA->m_family = wxFONTFAMILY_TELETYPE;
    else if (M_FONTDATA->m_faceName == wxT("LUCIDA"))
        M_FONTDATA->m_family = wxFONTFAMILY_DECORATIVE;
    else if (M_FONTDATA->m_faceName == wxT("UTOPIA"))
        M_FONTDATA->m_family = wxFONTFAMILY_SCRIPT;

    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()
{
}

wxGDIRefData *wxFont::CreateGDIRefData() const
{
    return new wxFontRefData;
}

wxGDIRefData *wxFont::CloneGDIRefData(const wxGDIRefData *data) const
{
    return new wxFontRefData(*static_cast<const wxFontRefData *>(data));
}

// ----------------------------------------------------------------------------
// 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(wxFontFamily family)
{
    Unshare();

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

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

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

void wxFont::SetWeight(wxFontWeight 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 ;
}

wxFontFamily wxFont::GetFamily() const
{
    wxCHECK_MSG( Ok(), wxFONTFAMILY_MAX, wxT("invalid font") );

    return M_FONTDATA->m_family;
}

wxFontStyle wxFont::GetStyle() const
{
    wxCHECK_MSG( Ok(), wxFONTSTYLE_MAX, wxT("invalid font") );

    return M_FONTDATA->m_style;
}

wxFontWeight wxFont::GetWeight() const
{
    wxCHECK_MSG( Ok(), wxFONTWEIGHT_MAX, 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
    char* fontSpec = wxStrdup(xFontSpec.mb_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_USE_RENDER_TABLE

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.mb_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_USE_RENDER_TABLE

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,
                 const_cast<char*>((const char *)str.mb_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_USE_RENDER_TABLE
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	virtual ~wxXFont();
	58
	59	#if !wxMOTIF_NEW_FONT_HANDLING
	60	WXFontStructPtr m_fontStruct; // XFontStruct
	61	#endif
	62	#if !wxMOTIF_USE_RENDER_TABLE
	63	WXFontList m_fontList; // Motif XmFontList
	64	#else // if wxMOTIF_USE_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	wxFontFamily family = wxFONTFAMILY_DEFAULT,
	79	wxFontStyle style = wxFONTSTYLE_NORMAL,
	80	wxFontWeight weight = wxFONTWEIGHT_NORMAL,
	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	virtual ~wxFontRefData();
	95
	96	protected:
	97	// common part of all ctors
	98	void Init(int size,
	99	wxFontFamily family,
	100	wxFontStyle style,
	101	wxFontWeight weight,
	102	bool underlined,
	103	const wxString& faceName,
	104	wxFontEncoding encoding);
	105
	106	// font attributes
	107	int m_pointSize;
	108	wxFontFamily m_family;
	109	wxFontStyle m_style;
	110	wxFontWeight 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
	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 wxMOTIF_USE_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	wxFontFamily family,
	170	wxFontStyle style,
	171	wxFontWeight weight,
	172	bool underlined,
	173	const wxString& faceName,
	174	wxFontEncoding encoding)
	175	{
	176	if (family == wxDEFAULT)
	177	m_family = wxFONTFAMILY_SWISS;
	178	else
	179	m_family = family;
	180
	181	m_faceName = faceName;
	182
	183	if (style == wxDEFAULT)
	184	m_style = wxFONTSTYLE_NORMAL;
	185	else
	186	m_style = style;
	187
	188	if (weight == wxDEFAULT)
	189	m_weight = wxFONTWEIGHT_NORMAL;
	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	#define M_FONTDATA ((wxFontRefData*)m_refData)
	215
	216	// ----------------------------------------------------------------------------
	217	// wxFont
	218	// ----------------------------------------------------------------------------
	219
	220	wxFont::wxFont(const wxNativeFontInfo& info)
	221	{
	222	(void)Create(info.GetXFontName());
	223	}
	224
	225	bool wxFont::Create(int pointSize,
	226	wxFontFamily family,
	227	wxFontStyle style,
	228	wxFontWeight weight,
	229	bool underlined,
	230	const wxString& faceName,
	231	wxFontEncoding encoding)
	232	{
	233	UnRef();
	234	m_refData = new wxFontRefData(pointSize, family, style, weight,
	235	underlined, faceName, encoding);
	236
	237	return true;
	238	}
	239
	240	bool wxFont::Create(const wxString& fontname, wxFontEncoding enc)
	241	{
	242	if( !fontname )
	243	{
	244	*this = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT);
	245	return true;
	246	}
	247
	248	m_refData = new wxFontRefData();
	249
	250	M_FONTDATA->m_nativeFontInfo.SetXFontName(fontname); // X font name
	251
	252	wxString tmp;
	253
	254	wxStringTokenizer tn( fontname, wxT("-") );
	255
	256	tn.GetNextToken(); // skip initial empty token
	257	tn.GetNextToken(); // foundry
	258
	259
	260	M_FONTDATA->m_faceName = tn.GetNextToken(); // family
	261
	262	tmp = tn.GetNextToken().MakeUpper(); // weight
	263	if (tmp == wxT("BOLD")) M_FONTDATA->m_weight = wxFONTWEIGHT_BOLD;
	264	if (tmp == wxT("BLACK")) M_FONTDATA->m_weight = wxFONTWEIGHT_BOLD;
	265	if (tmp == wxT("EXTRABOLD")) M_FONTDATA->m_weight = wxFONTWEIGHT_BOLD;
	266	if (tmp == wxT("DEMIBOLD")) M_FONTDATA->m_weight = wxFONTWEIGHT_BOLD;
	267	if (tmp == wxT("ULTRABOLD")) M_FONTDATA->m_weight = wxFONTWEIGHT_BOLD;
	268
	269	if (tmp == wxT("LIGHT")) M_FONTDATA->m_weight = wxFONTWEIGHT_LIGHT;
	270	if (tmp == wxT("THIN")) M_FONTDATA->m_weight = wxFONTWEIGHT_LIGHT;
	271
	272	tmp = tn.GetNextToken().MakeUpper(); // slant
	273	if (tmp == wxT("I")) M_FONTDATA->m_style = wxFONTSTYLE_ITALIC;
	274	if (tmp == wxT("O")) M_FONTDATA->m_style = wxFONTSTYLE_ITALIC;
	275
	276	tn.GetNextToken(); // set width
	277	tn.GetNextToken(); // add. style
	278	tn.GetNextToken(); // pixel size
	279
	280	tmp = tn.GetNextToken(); // pointsize
	281	if (tmp != wxT("*"))
	282	{
	283	long num = wxStrtol (tmp.mb_str(), (wxChar **) NULL, 10);
	284	M_FONTDATA->m_pointSize = (int)(num / 10);
	285	}
	286
	287	tn.GetNextToken(); // x-res
	288	tn.GetNextToken(); // y-res
	289
	290	tmp = tn.GetNextToken().MakeUpper(); // spacing
	291
	292	if (tmp == wxT("M"))
	293	M_FONTDATA->m_family = wxFONTFAMILY_MODERN;
	294	else if (M_FONTDATA->m_faceName == wxT("TIMES"))
	295	M_FONTDATA->m_family = wxFONTFAMILY_ROMAN;
	296	else if (M_FONTDATA->m_faceName == wxT("HELVETICA"))
	297	M_FONTDATA->m_family = wxFONTFAMILY_SWISS;
	298	else if (M_FONTDATA->m_faceName == wxT("LUCIDATYPEWRITER"))
	299	M_FONTDATA->m_family = wxFONTFAMILY_TELETYPE;
	300	else if (M_FONTDATA->m_faceName == wxT("LUCIDA"))
	301	M_FONTDATA->m_family = wxFONTFAMILY_DECORATIVE;
	302	else if (M_FONTDATA->m_faceName == wxT("UTOPIA"))
	303	M_FONTDATA->m_family = wxFONTFAMILY_SCRIPT;
	304
	305	tn.GetNextToken(); // avg width
	306
	307	// deal with font encoding
	308	M_FONTDATA->m_encoding = enc;
	309	if ( M_FONTDATA->m_encoding == wxFONTENCODING_SYSTEM )
	310	{
	311	wxString registry = tn.GetNextToken().MakeUpper(),
	312	encoding = tn.GetNextToken().MakeUpper();
	313
	314	if ( registry == _T("ISO8859") )
	315	{
	316	int cp;
	317	if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 )
	318	{
	319	M_FONTDATA->m_encoding =
	320	(wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1);
	321	}
	322	}
	323	else if ( registry == _T("MICROSOFT") )
	324	{
	325	int cp;
	326	if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 )
	327	{
	328	M_FONTDATA->m_encoding =
	329	(wxFontEncoding)(wxFONTENCODING_CP1250 + cp);
	330	}
	331	}
	332	else if ( registry == _T("KOI8") )
	333	{
	334	M_FONTDATA->m_encoding = wxFONTENCODING_KOI8;
	335	}
	336	//else: unknown encoding - may be give a warning here?
	337	else
	338	return false;
	339	}
	340	return true;
	341	}
	342
	343	wxFont::~wxFont()
	344	{
	345	}
	346
	347	wxGDIRefData *wxFont::CreateGDIRefData() const
	348	{
	349	return new wxFontRefData;
	350	}
	351
	352	wxGDIRefData wxFont::CloneGDIRefData(const wxGDIRefData data) const
	353	{
	354	return new wxFontRefData(static_cast<const wxFontRefData >(data));
	355	}
	356
	357	// ----------------------------------------------------------------------------
	358	// change the font attributes
	359	// ----------------------------------------------------------------------------
	360
	361	void wxFont::Unshare()
	362	{
	363	// Don't change shared data
	364	if (!m_refData)
	365	{
	366	m_refData = new wxFontRefData();
	367	}
	368	else
	369	{
	370	wxFontRefData* ref = new wxFontRefData((wxFontRefData)m_refData);
	371	UnRef();
	372	m_refData = ref;
	373	}
	374	}
	375
	376	void wxFont::SetPointSize(int pointSize)
	377	{
	378	Unshare();
	379
	380	M_FONTDATA->m_pointSize = pointSize;
	381	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	382	}
	383
	384	void wxFont::SetFamily(wxFontFamily family)
	385	{
	386	Unshare();
	387
	388	M_FONTDATA->m_family = family;
	389	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	390	}
	391
	392	void wxFont::SetStyle(wxFontStyle style)
	393	{
	394	Unshare();
	395
	396	M_FONTDATA->m_style = style;
	397	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	398	}
	399
	400	void wxFont::SetWeight(wxFontWeight weight)
	401	{
	402	Unshare();
	403
	404	M_FONTDATA->m_weight = weight;
	405	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	406	}
	407
	408	bool wxFont::SetFaceName(const wxString& faceName)
	409	{
	410	Unshare();
	411
	412	M_FONTDATA->m_faceName = faceName;
	413	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	414
	415	return wxFontBase::SetFaceName(faceName);
	416	}
	417
	418	void wxFont::SetUnderlined(bool underlined)
	419	{
	420	Unshare();
	421
	422	M_FONTDATA->m_underlined = underlined;
	423	}
	424
	425	void wxFont::SetEncoding(wxFontEncoding encoding)
	426	{
	427	Unshare();
	428
	429	M_FONTDATA->m_encoding = encoding;
	430	M_FONTDATA->m_nativeFontInfo.GetXFontName().Clear(); // invalid now
	431	}
	432
	433	void wxFont::DoSetNativeFontInfo(const wxNativeFontInfo& info)
	434	{
	435	Unshare();
	436
	437	M_FONTDATA->m_nativeFontInfo = info;
	438	}
	439
	440	// ----------------------------------------------------------------------------
	441	// query font attributes
	442	// ----------------------------------------------------------------------------
	443
	444	int wxFont::GetPointSize() const
	445	{
	446	wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
	447
	448	return M_FONTDATA->m_pointSize;
	449	}
	450
	451	wxString wxFont::GetFaceName() const
	452	{
	453	wxCHECK_MSG( Ok(), wxEmptyString, wxT("invalid font") );
	454
	455	return M_FONTDATA->m_faceName ;
	456	}
	457
	458	wxFontFamily wxFont::GetFamily() const
	459	{
	460	wxCHECK_MSG( Ok(), wxFONTFAMILY_MAX, wxT("invalid font") );
	461
	462	return M_FONTDATA->m_family;
	463	}
	464
	465	wxFontStyle wxFont::GetStyle() const
	466	{
	467	wxCHECK_MSG( Ok(), wxFONTSTYLE_MAX, wxT("invalid font") );
	468
	469	return M_FONTDATA->m_style;
	470	}
	471
	472	wxFontWeight wxFont::GetWeight() const
	473	{
	474	wxCHECK_MSG( Ok(), wxFONTWEIGHT_MAX, wxT("invalid font") );
	475
	476	return M_FONTDATA->m_weight;
	477	}
	478
	479	bool wxFont::GetUnderlined() const
	480	{
	481	wxCHECK_MSG( Ok(), false, wxT("invalid font") );
	482
	483	return M_FONTDATA->m_underlined;
	484	}
	485
	486	wxFontEncoding wxFont::GetEncoding() const
	487	{
	488	wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
	489
	490	return M_FONTDATA->m_encoding;
	491	}
	492
	493	const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
	494	{
	495	wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );
	496
	497	if(M_FONTDATA->m_nativeFontInfo.GetXFontName().empty())
	498	GetInternalFont();
	499
	500	return &(M_FONTDATA->m_nativeFontInfo);
	501	}
	502
	503	// ----------------------------------------------------------------------------
	504	// real implementation
	505	// ----------------------------------------------------------------------------
	506
	507	// Find an existing, or create a new, XFontStruct
	508	// based on this wxFont and the given scale. Append the
	509	// font to list in the private data for future reference.
	510	wxXFont* wxFont::GetInternalFont(double scale, WXDisplay* display) const
	511	{
	512	if ( !Ok() )
	513	return (wxXFont *)NULL;
	514
	515	long intScale = long(scale * 100.0 + 0.5); // key for wxXFont
	516	int pointSize = (M_FONTDATA->m_pointSize * 10 * intScale) / 100;
	517
	518	// search existing fonts first
	519	wxList::compatibility_iterator node = M_FONTDATA->m_fonts.GetFirst();
	520	while (node)
	521	{
	522	wxXFont* f = (wxXFont*) node->GetData();
	523	if ((!display \|\| (f->m_display == display)) && (f->m_scale == intScale))
	524	return f;
	525	node = node->GetNext();
	526	}
	527
	528	// not found, create a new one
	529	wxString xFontSpec;
	530	XFontStruct font = (XFontStruct )
	531	wxLoadQueryNearestFont(pointSize,
	532	M_FONTDATA->m_family,
	533	M_FONTDATA->m_style,
	534	M_FONTDATA->m_weight,
	535	M_FONTDATA->m_underlined,
	536	wxT(""),
	537	M_FONTDATA->m_encoding,
	538	&xFontSpec);
	539
	540	if ( !font )
	541	{
	542	wxFAIL_MSG( wxT("Could not allocate even a default font -- something is wrong.") );
	543
	544	return (wxXFont*) NULL;
	545	}
	546
	547	wxXFont* f = new wxXFont;
	548	#if wxMOTIF_NEW_FONT_HANDLING
	549	XFreeFont( (Display*) display, font );
	550	#else
	551	f->m_fontStruct = (WXFontStructPtr)font;
	552	#endif
	553	f->m_display = ( display ? display : wxGetDisplay() );
	554	f->m_scale = intScale;
	555
	556	#if wxMOTIF_USE_RENDER_TABLE
	557	XmRendition rendition;
	558	XmRenderTable renderTable;
	559	Arg args[5];
	560	int count = 0;
	561
	562	#if wxMOTIF_NEW_FONT_HANDLING
	563	char* fontSpec = wxStrdup(xFontSpec.mb_str());
	564	XtSetArg( args[count], XmNfontName, fontSpec ); ++count;
	565	XtSetArg( args[count], XmNfontType, XmFONT_IS_FONTSET ); ++count;
	566	#else
	567	XtSetArg( args[count], XmNfont, font ); ++count;
	568	#endif
	569	XtSetArg( args[count], XmNunderlineType,
	570	GetUnderlined() ? XmSINGLE_LINE : XmNO_LINE ); ++count;
	571	rendition = XmRenditionCreate( XmGetXmDisplay( (Display*)f->m_display ),
	572	(XmStringTag)"",
	573	args, count );
	574	renderTable = XmRenderTableAddRenditions( NULL, &rendition, 1,
	575	XmMERGE_REPLACE );
	576
	577	f->m_renderTable = (WXRenderTable)renderTable;
	578	f->m_rendition = (WXRendition)rendition;
	579	wxASSERT( f->m_renderTable != NULL );
	580	#else // if !wxMOTIF_USE_RENDER_TABLE
	581	f->m_fontList = XmFontListCreate ((XFontStruct*) font, XmSTRING_DEFAULT_CHARSET);
	582	wxASSERT( f->m_fontList != NULL );
	583	#endif
	584
	585	M_FONTDATA->m_fonts.Append(f);
	586
	587	return f;
	588	}
	589
	590	#if !wxMOTIF_NEW_FONT_HANDLING
	591
	592	WXFontStructPtr wxFont::GetFontStruct(double scale, WXDisplay* display) const
	593	{
	594	wxXFont* f = GetInternalFont(scale, display);
	595
	596	return (f ? f->m_fontStruct : (WXFontStructPtr) 0);
	597	}
	598
	599	#endif
	600
	601	#if !wxMOTIF_USE_RENDER_TABLE
	602
	603	WXFontList wxFont::GetFontList(double scale, WXDisplay* display) const
	604	{
	605	wxXFont* f = GetInternalFont(scale, display);
	606
	607	return (f ? f->m_fontList : (WXFontList) 0);
	608	}
	609
	610	#else // if wxMOTIF_USE_RENDER_TABLE
	611
	612	WXRenderTable wxFont::GetRenderTable(WXDisplay* display) const
	613	{
	614	wxXFont* f = GetInternalFont(1.0, display);
	615
	616	return (f ? f->m_renderTable : (WXRenderTable) 0);
	617	}
	618
	619	#endif // wxMOTIF_USE_RENDER_TABLE
	620
	621	WXFontType wxFont::GetFontType(WXDisplay* display) const
	622	{
	623	#if wxMOTIF_USE_RENDER_TABLE
	624	return Ok() ? GetRenderTable(display) : NULL;
	625	#else
	626	return Ok() ? GetFontList(1.0, display) : NULL;
	627	#endif
	628	}
	629
	630	WXFontType wxFont::GetFontTypeC(WXDisplay* display) const
	631	{
	632	#if wxMOTIF_USE_RENDER_TABLE
	633	return Ok() ? GetRenderTable(display) : NULL;
	634	#else
	635	return Ok() ? XmFontListCopy( (XmFontList)GetFontList(1.0, display) ) : NULL;
	636	#endif
	637	}
	638
	639	/static/ WXString wxFont::GetFontTag()
	640	{
	641	#if wxMOTIF_USE_RENDER_TABLE
	642	return (WXString)XmNrenderTable;
	643	#else
	644	return (WXString)XmNfontList;
	645	#endif
	646	}
	647
	648	#if wxMOTIF_USE_RENDER_TABLE
	649
	650	WXFontSet wxFont::GetFontSet(double scale, WXDisplay* display) const
	651	{
	652	wxXFont* f = GetInternalFont(scale, display);
	653
	654	if( !f ) return (WXFontSet) 0;
	655
	656	Arg args[2];
	657	int count = 0;
	658
	659	XtSetArg( args[count], XmNfont, 0 ); ++count;
	660	XmRenditionRetrieve( (XmRendition) f->m_rendition, args, count );
	661
	662	return (WXFontSet) args[0].value;
	663	}
	664
	665	void wxGetTextExtent(WXDisplay* display, const wxFont& font, double scale,
	666	const wxString& str,
	667	int* width, int* height, int* ascent, int* descent)
	668	{
	669	XRectangle ink, logical;
	670	WXFontSet fset = font.GetFontSet(scale, display);
	671
	672	XmbTextExtents( (XFontSet)fset, str.mb_str(), str.length(), &ink, &logical);
	673
	674	if( width ) *width = logical.width;
	675	if( height ) *height = logical.height;
	676	if( ascent ) *ascent = -logical.y;
	677	if( descent ) *descent = logical.height + logical.y;
	678	}
	679
	680	#else // if !wxMOTIF_USE_RENDER_TABLE
	681
	682	void wxGetTextExtent(WXDisplay* display, const wxFont& font,
	683	double scale, const wxString& str,
	684	int* width, int* height, int* ascent, int* descent)
	685	{
	686	WXFontStructPtr pFontStruct = font.GetFontStruct(scale, display);
	687
	688	int direction, ascent2, descent2;
	689	XCharStruct overall;
	690	int slen = str.length();
	691
	692	XTextExtents((XFontStruct*) pFontStruct,
	693	const_cast<char>((const char )str.mb_str()), slen,
	694	&direction, &ascent2, &descent2, &overall);
	695
	696	if ( width )
	697	*width = (overall.width);
	698	if ( height )
	699	*height = (ascent2 + descent2);
	700	if ( descent )
	701	*descent = descent2;
	702	if ( ascent )
	703	*ascent = ascent2;
	704	}
	705
	706	#endif // !wxMOTIF_USE_RENDER_TABLE