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better native font support for wxGTK

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13642 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2002-01-18 20:01:49 +00:00
parent 1542c42e72
commit 409d5a5860
14 changed files with 933 additions and 499 deletions
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541
src/gtk/font.cpp
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@@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////////
// Name: font.cpp
// Name: gtk/font.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
@@ -34,6 +34,24 @@
#include <gdk/gdkprivate.h>
#include <gtk/gtk.h>
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// the default size (in points) for the fonts
static const int wxDEFAULT_FONT_SIZE = 12;
// ----------------------------------------------------------------------------
// wxScaledFontList
// ----------------------------------------------------------------------------
// TODO: replace this with a type safe list or hash!!
class wxScaledFontList : public wxList
{
public:
wxScaledFontList() : wxList(wxKEY_INTEGER) { }
};
// ----------------------------------------------------------------------------
// wxFontRefData
// ----------------------------------------------------------------------------
@@ -41,16 +59,59 @@
class wxFontRefData : public wxObjectRefData
{
public:
wxFontRefData(int size = wxDEFAULT,
int family = wxDEFAULT,
int style = wxDEFAULT,
int weight = wxDEFAULT,
// from broken down font parameters, also default ctor
wxFontRefData(int size = -1,
int family = wxFONTFAMILY_DEFAULT,
int style = wxFONTSTYLE_NORMAL,
int weight = wxFONTWEIGHT_NORMAL,
bool underlined = FALSE,
const wxString& faceName = wxEmptyString,
wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
// from XFLD
wxFontRefData(const wxString& fontname);
// copy ctor
wxFontRefData( const wxFontRefData& data );
virtual ~wxFontRefData();
// do we have the native font info?
bool HasNativeFont() const
{
return !m_nativeFontInfo.IsDefault();
}
// setters: all of them also take care to modify m_nativeFontInfo if we
// have it so as to not lose the information not carried by our fields
void SetPointSize(int pointSize);
void SetFamily(int family);
void SetStyle(int style);
void SetWeight(int weight);
void SetUnderlined(bool underlined);
void SetFaceName(const wxString& facename);
void SetEncoding(wxFontEncoding encoding);
// debugger helper: shows what the font really is
//
// VZ: I need this as my gdb either shows wildly wrong values or crashes
// when I ask it to "p fontRefData" :-(
#ifdef __WXDEBUG__
void Dump() const
{
wxPrintf(_T("%s-%s-%s-%d-%d\n"),
m_faceName.c_str(),
m_weight == wxFONTWEIGHT_NORMAL
? _T("normal")
: m_weight == wxFONTWEIGHT_BOLD
? _T("bold")
: _T("light"),
m_style == wxFONTSTYLE_NORMAL ? _T("regular") : _T("italic"),
m_pointSize,
m_encoding);
}
#endif // Debug
protected:
// common part of all ctors
void Init(int pointSize,
@@ -62,7 +123,10 @@ protected:
wxFontEncoding encoding);
private:
wxList m_scaled_xfonts;
// the map of font sizes to "GdkFont *"
wxScaledFontList m_scaled_xfonts;
// the broken down font parameters
int m_pointSize;
int m_family,
m_style,
@@ -71,17 +135,18 @@ private:
wxString m_faceName;
wxFontEncoding m_encoding;
// the native font info, basicly an XFLD
wxNativeFontInfo m_nativeFontInfo;
friend class wxFont;
};
// ============================================================================
// implementation
// wxFontRefData implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxFontRefData
// wxFontRefData creation
// ----------------------------------------------------------------------------
void wxFontRefData::Init(int pointSize,
@@ -92,48 +157,150 @@ void wxFontRefData::Init(int pointSize,
const wxString& faceName,
wxFontEncoding encoding)
{
if (family == wxDEFAULT)
m_family = wxSWISS;
else
m_family = family;
m_family = family == wxFONTFAMILY_DEFAULT ? wxFONTFAMILY_SWISS : family;
m_faceName = faceName;
if (style == wxDEFAULT)
m_style = wxNORMAL;
else
m_style = style;
// we accept both wxDEFAULT and wxNORMAL here - should we?
m_style = style == wxDEFAULT ? wxFONTSTYLE_NORMAL : style;
m_weight = weight == wxDEFAULT ? wxFONTWEIGHT_NORMAL : weight;
if (weight == wxDEFAULT)
m_weight = wxNORMAL;
else
m_weight = weight;
if (pointSize == wxDEFAULT)
m_pointSize = 12;
else
m_pointSize = pointSize;
// and here, do we really want to forbid creation of the font of the size
// 90 (the value of wxDEFAULT)??
m_pointSize = pointSize == wxDEFAULT ||
pointSize == -1 ? wxDEFAULT_FONT_SIZE : pointSize;
m_underlined = underlined;
m_encoding = encoding;
}
wxFontRefData::wxFontRefData( const wxFontRefData& data )
: m_scaled_xfonts(wxKEY_INTEGER)
{
Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
data.m_underlined, data.m_faceName, data.m_encoding);
m_pointSize = data.m_pointSize;
m_family = data.m_family;
m_style = data.m_style;
m_weight = data.m_weight;
m_underlined = data.m_underlined;
m_faceName = data.m_faceName;
m_encoding = data.m_encoding;
m_nativeFontInfo = data.m_nativeFontInfo;
}
wxFontRefData::wxFontRefData(int size, int family, int style,
int weight, bool underlined,
const wxString& faceName,
wxFontEncoding encoding)
: m_scaled_xfonts(wxKEY_INTEGER)
{
Init(size, family, style, weight, underlined, faceName, encoding);
}
wxFontRefData::wxFontRefData(const wxString& fontname)
{
// remember the X font name
m_nativeFontInfo.SetXFontName(fontname);
// get the font parameters from the XLFD
// -------------------------------------
m_faceName = m_nativeFontInfo.GetXFontComponent(wxXLFD_FAMILY);
m_weight = wxFONTWEIGHT_NORMAL;
wxString w = m_nativeFontInfo.GetXFontComponent(wxXLFD_WEIGHT).Upper();
if ( !w.empty() && w != _T('*') )
{
// the test below catches all of BOLD, EXTRABOLD, DEMIBOLD, ULTRABOLD
// and BLACK
if ( ((w[0u] == _T('B') && (!strcmp(w.c_str() + 1, _T("OLD")) ||
!strcmp(w.c_str() + 1, _T("LACK"))))) ||
strstr(w.c_str() + 1, _T("BOLD")) )
{
m_weight = wxFONTWEIGHT_BOLD;
}
else if ( w == _T("LIGHT") || w == _T("THIN") )
{
m_weight = wxFONTWEIGHT_LIGHT;
}
}
switch ( wxToupper(*m_nativeFontInfo.
GetXFontComponent(wxXLFD_SLANT).c_str()) )
{
case _T('I'): // italique
m_style = wxFONTSTYLE_ITALIC;
break;
case _T('O'): // oblique
m_style = wxFONTSTYLE_SLANT;
break;
default:
m_style = wxFONTSTYLE_NORMAL;
}
long ptSize;
if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_POINTSIZE).ToLong(&ptSize) )
{
// size in XLFD is in 10 point units
m_pointSize = (int)(ptSize / 10);
}
else
{
m_pointSize = wxDEFAULT_FONT_SIZE;
}
// examine the spacing: if the font is monospaced, assume wxTELETYPE
// family for compatibility with the old code which used it instead of
// IsFixedWidth()
if ( m_nativeFontInfo.GetXFontComponent(wxXLFD_SPACING).Upper() == _T('M') )
{
m_family = wxFONTFAMILY_TELETYPE;
}
else // not monospaceed
{
// don't even try guessing it, it doesn't work for too many fonts
// anyhow
m_family = wxFONTFAMILY_UNKNOWN;
}
// X fonts are never underlined...
m_underlined = FALSE;
// deal with font encoding
wxString
registry = m_nativeFontInfo.GetXFontComponent(wxXLFD_REGISTRY).Upper(),
encoding = m_nativeFontInfo.GetXFontComponent(wxXLFD_ENCODING).Upper();
if ( registry == _T("ISO8859") )
{
int cp;
if ( wxSscanf(encoding, wxT("%d"), &cp) == 1 )
{
m_encoding = (wxFontEncoding)(wxFONTENCODING_ISO8859_1 + cp - 1);
}
}
else if ( registry == _T("MICROSOFT") )
{
int cp;
if ( wxSscanf(encoding, wxT("cp125%d"), &cp) == 1 )
{
m_encoding = (wxFontEncoding)(wxFONTENCODING_CP1250 + cp);
}
}
else if ( registry == _T("KOI8") )
{
m_encoding = wxFONTENCODING_KOI8;
}
else // unknown encoding
{
// may be give a warning here?
m_encoding = wxFONTENCODING_SYSTEM;
}
}
wxFontRefData::~wxFontRefData()
{
wxNode *node = m_scaled_xfonts.First();
@@ -147,7 +314,129 @@ wxFontRefData::~wxFontRefData()
}
// ----------------------------------------------------------------------------
// wxFont
// wxFontRefData SetXXX()
// ----------------------------------------------------------------------------
void wxFontRefData::SetPointSize(int pointSize)
{
m_pointSize = pointSize;
if ( HasNativeFont() )
{
wxString size;
if ( pointSize == -1 )
size = _T('*');
else
size.Printf(_T("%d"), 10*pointSize);
m_nativeFontInfo.SetXFontComponent(wxXLFD_POINTSIZE, size);
}
}
void wxFontRefData::SetFamily(int family)
{
m_family = family;
// TODO: what are we supposed to do with m_nativeFontInfo here?
}
void wxFontRefData::SetStyle(int style)
{
m_style = style;
if ( HasNativeFont() )
{
wxString slant;
switch ( style )
{
case wxFONTSTYLE_ITALIC:
slant = _T('i');
break;
case wxFONTSTYLE_SLANT:
slant = _T('o');
break;
default:
wxFAIL_MSG( _T("unknown font style") );
// fall through
case wxFONTSTYLE_NORMAL:
slant = _T('r');
}
m_nativeFontInfo.SetXFontComponent(wxXLFD_SLANT, slant);
}
}
void wxFontRefData::SetWeight(int weight)
{
m_weight = weight;
if ( HasNativeFont() )
{
wxString boldness;
switch ( weight )
{
case wxFONTWEIGHT_BOLD:
boldness = _T("bold");
break;
case wxFONTWEIGHT_LIGHT:
boldness = _T("light");
break;
default:
wxFAIL_MSG( _T("unknown font weight") );
// fall through
case wxFONTWEIGHT_NORMAL:
// unspecified
boldness = _T("medium");
}
m_nativeFontInfo.SetXFontComponent(wxXLFD_WEIGHT, boldness);
}
}
void wxFontRefData::SetUnderlined(bool underlined)
{
m_underlined = underlined;
// the XLFD doesn't have "underlined" field anyhow
}
void wxFontRefData::SetFaceName(const wxString& facename)
{
m_faceName = facename;
if ( HasNativeFont() )
{
m_nativeFontInfo.SetXFontComponent(wxXLFD_FAMILY, facename);
}
}
void wxFontRefData::SetEncoding(wxFontEncoding encoding)
{
m_encoding = encoding;
if ( HasNativeFont() )
{
wxNativeEncodingInfo info;
if ( wxGetNativeFontEncoding(encoding, &info) )
{
m_nativeFontInfo.SetXFontComponent(wxXLFD_REGISTRY, info.xregistry);
m_nativeFontInfo.SetXFontComponent(wxXLFD_ENCODING, info.xencoding);
}
}
}
// ============================================================================
// wxFont implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxFont creation
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
@@ -160,12 +449,7 @@ wxFont::wxFont(const wxNativeFontInfo& info)
{
Init();
Create(info.xFontName);
}
bool wxFont::Create(const wxNativeFontInfo& info)
{
return Create(info.xFontName);
Create(info.GetXFontName());
}
bool wxFont::Create( int pointSize,
@@ -182,106 +466,18 @@ bool wxFont::Create( int pointSize,
return TRUE;
}
bool wxFont::Create(const wxString& fontname, wxFontEncoding enc)
bool wxFont::Create(const wxString& fontname)
{
if( !fontname )
// VZ: does this really happen?
if ( fontname.empty() )
{
*this = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT);
return TRUE;
*this = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
return TRUE;
}
m_refData = new wxFontRefData();
m_refData = new wxFontRefData(fontname);
M_FONTDATA->m_nativeFontInfo.xFontName = 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;
}
@@ -307,10 +503,8 @@ wxFont::~wxFont()
// accessors
// ----------------------------------------------------------------------------
bool wxFont::HasNativeFont() const
{
return !M_FONTDATA->m_nativeFontInfo.xFontName.empty();
}
// all accessors are just forwarded to wxFontRefData which has everything we
// need
int wxFont::GetPointSize() const
{
@@ -354,7 +548,6 @@ bool wxFont::GetUnderlined() const
return M_FONTDATA->m_underlined;
}
wxFontEncoding wxFont::GetEncoding() const
{
wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
@@ -366,7 +559,7 @@ wxNativeFontInfo *wxFont::GetNativeFontInfo() const
{
wxCHECK_MSG( Ok(), (wxNativeFontInfo *)NULL, wxT("invalid font") );
if(M_FONTDATA->m_nativeFontInfo.xFontName.IsEmpty())
if ( M_FONTDATA->m_nativeFontInfo.GetXFontName().empty() )
GetInternalFont();
return new wxNativeFontInfo(M_FONTDATA->m_nativeFontInfo);
@@ -376,7 +569,7 @@ bool wxFont::IsFixedWidth() const
{
wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
if ( HasNativeFont() )
if ( M_FONTDATA->HasNativeFont() )
{
// the monospace fonts are supposed to have "M" in the spacing field
wxString spacing = M_FONTDATA->
@@ -396,55 +589,49 @@ void wxFont::SetPointSize(int pointSize)
{
Unshare();
M_FONTDATA->m_pointSize = pointSize;
M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now
M_FONTDATA->SetPointSize(pointSize);
}
void wxFont::SetFamily(int family)
{
Unshare();
M_FONTDATA->m_family = family;
M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now
M_FONTDATA->SetFamily(family);
}
void wxFont::SetStyle(int style)
{
Unshare();
M_FONTDATA->m_style = style;
M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now
M_FONTDATA->SetStyle(style);
}
void wxFont::SetWeight(int weight)
{
Unshare();
M_FONTDATA->m_weight = weight;
M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now
M_FONTDATA->SetWeight(weight);
}
void wxFont::SetFaceName(const wxString& faceName)
{
Unshare();
M_FONTDATA->m_faceName = faceName;
M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now
M_FONTDATA->SetFaceName(faceName);
}
void wxFont::SetUnderlined(bool underlined)
{
Unshare();
M_FONTDATA->m_underlined = underlined;
M_FONTDATA->SetUnderlined(underlined);
}
void wxFont::SetEncoding(wxFontEncoding encoding)
{
Unshare();
M_FONTDATA->m_encoding = encoding;
M_FONTDATA->m_nativeFontInfo.xFontName.Clear(); // invalid now
M_FONTDATA->SetEncoding(encoding);
}
void wxFont::SetNativeFontInfo(const wxNativeFontInfo& info)
@@ -460,7 +647,8 @@ void wxFont::SetNativeFontInfo(const wxNativeFontInfo& info)
static GdkFont *g_systemDefaultGuiFont = (GdkFont*) NULL;
GdkFont *GtkGetDefaultGuiFont()
// this is also used from tbargtk.cpp and tooltip.cpp, hence extern
extern GdkFont *GtkGetDefaultGuiFont()
{
if (!g_systemDefaultGuiFont)
{
@@ -489,41 +677,56 @@ GdkFont *GtkGetDefaultGuiFont()
GdkFont *wxFont::GetInternalFont( float scale ) const
{
if (!Ok())
{
wxFAIL_MSG( wxT("invalid font") );
GdkFont *font = (GdkFont *) NULL;
return (GdkFont*) NULL;
}
wxCHECK_MSG( Ok(), font, wxT("invalid font") )
long int_scale = long(scale * 100.0 + 0.5); /* key for fontlist */
int point_scale = (int)((M_FONTDATA->m_pointSize * 10 * int_scale) / 100);
GdkFont *font = (GdkFont *) NULL;
wxNode *node = M_FONTDATA->m_scaled_xfonts.Find(int_scale);
if (node)
{
font = (GdkFont*)node->Data();
}
else
else // we don't have this font in this size yet
{
if (*this == wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT))
{
font = GtkGetDefaultGuiFont();
}
if (!font)
if ( !font )
{
font = wxLoadQueryNearestFont( point_scale,
M_FONTDATA->m_family,
M_FONTDATA->m_style,
M_FONTDATA->m_weight,
M_FONTDATA->m_underlined,
M_FONTDATA->m_faceName,
M_FONTDATA->m_encoding,
&M_FONTDATA->m_nativeFontInfo.xFontName );
// do we have the XLFD?
if ( M_FONTDATA->HasNativeFont() )
{
font = wxLoadFont(M_FONTDATA->m_nativeFontInfo.GetXFontName());
}
// no XLFD of no exact match - try the approximate one now
if ( !font )
{
wxString xfontname;
font = wxLoadQueryNearestFont( point_scale,
M_FONTDATA->m_family,
M_FONTDATA->m_style,
M_FONTDATA->m_weight,
M_FONTDATA->m_underlined,
M_FONTDATA->m_faceName,
M_FONTDATA->m_encoding,
&xfontname);
if ( font )
{
M_FONTDATA->m_nativeFontInfo.SetXFontName(xfontname);
}
}
}
M_FONTDATA->m_scaled_xfonts.Append( int_scale, (wxObject*)font );
if ( font )
{
M_FONTDATA->m_scaled_xfonts.Append( int_scale, (wxObject*)font );
}
}
// it's quite useless to make it a wxCHECK because we're going to crash