/////////////////////////////////////////////////////////////////////////////
-// Name: common/fontcmn.cpp
+// Name: src/common/fontcmn.cpp
// Purpose: implementation of wxFontBase methods
// Author: Vadim Zeitlin
// Modified by:
// Created: 20.09.99
// RCS-ID: $Id$
-// Copyright: (c) wxWindows team
-// Licence: wxWindows license
+// Copyright: (c) wxWidgets team
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
#pragma hdrstop
#endif
+#include "wx/font.h"
+
#ifndef WX_PRECOMP
- #include "wx/font.h"
+ #include "wx/dc.h"
+ #include "wx/intl.h"
+ #include "wx/dcscreen.h"
+ #include "wx/log.h"
+ #include "wx/gdicmn.h"
#endif // WX_PRECOMP
+#if defined(__WXMSW__)
+ #include "wx/msw/private.h" // includes windows.h for LOGFONT
+ #include "wx/msw/winundef.h"
+#endif
+
+#include "wx/fontutil.h" // for wxNativeFontInfo
+#include "wx/fontmap.h"
+#include "wx/fontenum.h"
+
+#include "wx/tokenzr.h"
+
// ============================================================================
// implementation
// ============================================================================
+// ----------------------------------------------------------------------------
+// helper functions
+// ----------------------------------------------------------------------------
+
+static void AdjustFontSize(wxFont& font, wxDC& dc, const wxSize& pixelSize)
+{
+ int currentSize = 0;
+ int largestGood = 0;
+ int smallestBad = 0;
+
+ bool initialGoodFound = false;
+ bool initialBadFound = false;
+
+ // NB: this assignment was separated from the variable definition
+ // in order to fix a gcc v3.3.3 compiler crash
+ currentSize = font.GetPointSize();
+ while (currentSize > 0)
+ {
+ dc.SetFont(font);
+
+ // if currentSize (in points) results in a font that is smaller
+ // than required by pixelSize it is considered a good size
+ if (dc.GetCharHeight() <= pixelSize.GetHeight() &&
+ (!pixelSize.GetWidth() ||
+ dc.GetCharWidth() <= pixelSize.GetWidth()))
+ {
+ largestGood = currentSize;
+ initialGoodFound = true;
+ }
+ else
+ {
+ smallestBad = currentSize;
+ initialBadFound = true;
+ }
+ if (!initialGoodFound)
+ {
+ currentSize /= 2;
+ }
+ else if (!initialBadFound)
+ {
+ currentSize *= 2;
+ }
+ else
+ {
+ int distance = smallestBad - largestGood;
+ if (distance == 1)
+ break;
+
+ currentSize = largestGood + distance / 2;
+ }
+
+ font.SetPointSize(currentSize);
+ }
+
+ if (currentSize != largestGood)
+ font.SetPointSize(largestGood);
+}
+
// ----------------------------------------------------------------------------
// wxFontBase
// ----------------------------------------------------------------------------
wxFontEncoding wxFontBase::ms_encodingDefault = wxFONTENCODING_SYSTEM;
+/* static */
+void wxFontBase::SetDefaultEncoding(wxFontEncoding encoding)
+{
+ // GetDefaultEncoding() should return something != wxFONTENCODING_DEFAULT
+ // and, besides, using this value here doesn't make any sense
+ wxCHECK_RET( encoding != wxFONTENCODING_DEFAULT,
+ _T("can't set default encoding to wxFONTENCODING_DEFAULT") );
+
+ ms_encodingDefault = encoding;
+}
+
+wxFontBase::~wxFontBase()
+{
+ // this destructor is required for Darwin
+}
+
+/* static */
wxFont *wxFontBase::New(int size,
int family,
int style,
return new wxFont(size, family, style, weight, underlined, face, encoding);
}
-wxFont& wxFont::operator=(const wxFont& font)
+static inline int flags2Style(int flags)
{
- if ( this != &font )
- Ref(font);
+ return flags & wxFONTFLAG_ITALIC
+ ? wxFONTSTYLE_ITALIC
+ : flags & wxFONTFLAG_SLANT
+ ? wxFONTSTYLE_SLANT
+ : wxFONTSTYLE_NORMAL;
+}
- return (wxFont &)*this;
+static inline int flags2Weight(int flags)
+{
+ return flags & wxFONTFLAG_LIGHT
+ ? wxFONTWEIGHT_LIGHT
+ : flags & wxFONTFLAG_BOLD
+ ? wxFONTWEIGHT_BOLD
+ : wxFONTWEIGHT_NORMAL;
+}
+
+static inline bool flags2Underlined(int flags)
+{
+ return (flags & wxFONTFLAG_UNDERLINED) != 0;
+}
+
+/* static */
+wxFont *wxFontBase::New(int pointSize,
+ wxFontFamily family,
+ int flags,
+ const wxString& face,
+ wxFontEncoding encoding)
+{
+ return New(pointSize, family, flags2Style(flags), flags2Weight(flags),
+ flags2Underlined(flags), face, encoding);
+}
+
+/* static */
+wxFont *wxFontBase::New(const wxSize& pixelSize,
+ int family,
+ int style,
+ int weight,
+ bool underlined,
+ const wxString& face,
+ wxFontEncoding encoding)
+{
+#if defined(__WXMSW__)
+ return new wxFont(pixelSize, family, style, weight, underlined,
+ face, encoding);
+#else
+ wxFont *self = New(10, family, style, weight, underlined, face, encoding);
+ wxScreenDC dc;
+ AdjustFontSize(*(wxFont *)self, dc, pixelSize);
+ return self;
+#endif
+}
+
+/* static */
+wxFont *wxFontBase::New(const wxSize& pixelSize,
+ wxFontFamily family,
+ int flags,
+ const wxString& face,
+ wxFontEncoding encoding)
+{
+ return New(pixelSize, family, flags2Style(flags), flags2Weight(flags),
+ flags2Underlined(flags), face, encoding);
+}
+
+wxSize wxFontBase::GetPixelSize() const
+{
+ wxScreenDC dc;
+ dc.SetFont(*(wxFont *)this);
+ return wxSize(dc.GetCharWidth(), dc.GetCharHeight());
+}
+
+bool wxFontBase::IsUsingSizeInPixels() const
+{
+ return false;
+}
+
+void wxFontBase::SetPixelSize( const wxSize& pixelSize )
+{
+ wxScreenDC dc;
+ AdjustFontSize(*(wxFont *)this, dc, pixelSize);
+}
+
+/* static */
+wxFont *wxFontBase::New(const wxNativeFontInfo& info)
+{
+ return new wxFont(info);
+}
+
+/* static */
+wxFont *wxFontBase::New(const wxString& strNativeFontDesc)
+{
+ wxNativeFontInfo fontInfo;
+ if ( !fontInfo.FromString(strNativeFontDesc) )
+ return new wxFont(*wxNORMAL_FONT);
+
+ return New(fontInfo);
+}
+
+bool wxFontBase::IsFixedWidth() const
+{
+ return GetFamily() == wxFONTFAMILY_TELETYPE;
+}
+
+void wxFontBase::DoSetNativeFontInfo(const wxNativeFontInfo& info)
+{
+#ifdef wxNO_NATIVE_FONTINFO
+ SetPointSize(info.pointSize);
+ SetFamily(info.family);
+ SetStyle(info.style);
+ SetWeight(info.weight);
+ SetUnderlined(info.underlined);
+ SetFaceName(info.faceName);
+ SetEncoding(info.encoding);
+#else
+ (void)info;
+#endif
+}
+
+wxString wxFontBase::GetNativeFontInfoDesc() const
+{
+ wxString fontDesc;
+ const wxNativeFontInfo *fontInfo = GetNativeFontInfo();
+ if ( fontInfo )
+ {
+ fontDesc = fontInfo->ToString();
+ wxASSERT_MSG(!fontDesc.empty(), wxT("This should be a non-empty string!"));
+ }
+ else
+ {
+ wxFAIL_MSG(wxT("Derived class should have created the wxNativeFontInfo!"));
+ }
+
+ return fontDesc;
+}
+
+wxString wxFontBase::GetNativeFontInfoUserDesc() const
+{
+ wxString fontDesc;
+ const wxNativeFontInfo *fontInfo = GetNativeFontInfo();
+ if ( fontInfo )
+ {
+ fontDesc = fontInfo->ToUserString();
+ wxASSERT_MSG(!fontDesc.empty(), wxT("This should be a non-empty string!"));
+ }
+ else
+ {
+ wxFAIL_MSG(wxT("Derived class should have created the wxNativeFontInfo!"));
+ }
+
+ return fontDesc;
+}
+
+bool wxFontBase::SetNativeFontInfo(const wxString& info)
+{
+ wxNativeFontInfo fontInfo;
+ if ( !info.empty() && fontInfo.FromString(info) )
+ {
+ SetNativeFontInfo(fontInfo);
+ return true;
+ }
+
+ UnRef();
+ return false;
+}
+
+bool wxFontBase::SetNativeFontInfoUserDesc(const wxString& info)
+{
+ wxNativeFontInfo fontInfo;
+ if ( !info.empty() && fontInfo.FromUserString(info) )
+ {
+ SetNativeFontInfo(fontInfo);
+ return true;
+ }
+
+ UnRef();
+ return false;
}
-// VZ: is it correct to compare pointers and not the contents? (FIXME)
bool wxFontBase::operator==(const wxFont& font) const
{
- return GetFontData() == font.GetFontData();
+ // either it is the same font, i.e. they share the same common data or they
+ // have different ref datas but still describe the same font
+ return GetFontData() == font.GetFontData() ||
+ (
+ Ok() == font.Ok() &&
+ GetPointSize() == font.GetPointSize() &&
+ // in wxGTK1 GetPixelSize() calls GetInternalFont() which uses
+ // operator==() resulting in infinite recursion so we can't use it
+ // in that port
+#if !defined(__WXGTK__) || defined(__WXGTK20__)
+ GetPixelSize() == font.GetPixelSize() &&
+#endif
+ GetFamily() == font.GetFamily() &&
+ GetStyle() == font.GetStyle() &&
+ GetWeight() == font.GetWeight() &&
+ GetUnderlined() == font.GetUnderlined() &&
+ GetFaceName().IsSameAs(font.GetFaceName(), false) &&
+ GetEncoding() == font.GetEncoding()
+ );
}
bool wxFontBase::operator!=(const wxFont& font) const
{
- return GetFontData() != font.GetFontData();
+ return !(*this == font);
}
wxString wxFontBase::GetFamilyString() const
{
- wxCHECK_MSG( Ok(), _T("wxDEFAULT"), _T("invalid font") );
+ wxCHECK_MSG( Ok(), wxT("wxDEFAULT"), wxT("invalid font") );
switch ( GetFamily() )
{
- case wxDECORATIVE: return _T("wxDECORATIVE");
- case wxROMAN: return _T("wxROMAN");
- case wxSCRIPT: return _T("wxSCRIPT");
- case wxSWISS: return _T("wxSWISS");
- case wxMODERN: return _T("wxMODERN");
- case wxTELETYPE: return _T("wxTELETYPE");
- default: return _T("wxDEFAULT");
+ case wxDECORATIVE: return wxT("wxDECORATIVE");
+ case wxROMAN: return wxT("wxROMAN");
+ case wxSCRIPT: return wxT("wxSCRIPT");
+ case wxSWISS: return wxT("wxSWISS");
+ case wxMODERN: return wxT("wxMODERN");
+ case wxTELETYPE: return wxT("wxTELETYPE");
+ default: return wxT("wxDEFAULT");
}
}
wxString wxFontBase::GetStyleString() const
{
- wxCHECK_MSG( Ok(), _T("wxDEFAULT"), _T("invalid font") );
+ wxCHECK_MSG( Ok(), wxT("wxDEFAULT"), wxT("invalid font") );
switch ( GetStyle() )
{
- case wxNORMAL: return _T("wxNORMAL");
- case wxSLANT: return _T("wxSLANT");
- case wxITALIC: return _T("wxITALIC");
- default: return _T("wxDEFAULT");
+ case wxNORMAL: return wxT("wxNORMAL");
+ case wxSLANT: return wxT("wxSLANT");
+ case wxITALIC: return wxT("wxITALIC");
+ default: return wxT("wxDEFAULT");
}
}
wxString wxFontBase::GetWeightString() const
{
- wxCHECK_MSG( Ok(), _T("wxDEFAULT"), _T("invalid font") );
+ wxCHECK_MSG( Ok(), wxT("wxDEFAULT"), wxT("invalid font") );
+
+ switch ( GetWeight() )
+ {
+ case wxNORMAL: return wxT("wxNORMAL");
+ case wxBOLD: return wxT("wxBOLD");
+ case wxLIGHT: return wxT("wxLIGHT");
+ default: return wxT("wxDEFAULT");
+ }
+}
+
+bool wxFontBase::SetFaceName(const wxString &facename)
+{
+ if (!wxFontEnumerator::IsValidFacename(facename))
+ {
+ UnRef(); // make Ok() return false
+ return false;
+ }
+
+ return true;
+}
+
+
+// ----------------------------------------------------------------------------
+// wxNativeFontInfo
+// ----------------------------------------------------------------------------
+
+// Up to now, there are no native implementations of this function:
+void wxNativeFontInfo::SetFaceName(const wxArrayString &facenames)
+{
+ for (size_t i=0; i < facenames.GetCount(); i++)
+ {
+ if (wxFontEnumerator::IsValidFacename(facenames[i]))
+ {
+ SetFaceName(facenames[i]);
+ return;
+ }
+ }
+
+ // set the first valid facename we can find on this system
+ wxString validfacename = wxFontEnumerator::GetFacenames().Item(0);
+ wxLogTrace(wxT("font"), wxT("Falling back to '%s'"), validfacename.c_str());
+ SetFaceName(validfacename);
+}
+
+
+#ifdef wxNO_NATIVE_FONTINFO
+
+// These are the generic forms of FromString()/ToString.
+//
+// convert to/from the string representation: format is
+// version;pointsize;family;style;weight;underlined;facename;encoding
+
+bool wxNativeFontInfo::FromString(const wxString& s)
+{
+ long l;
+
+ wxStringTokenizer tokenizer(s, _T(";"));
+
+ wxString token = tokenizer.GetNextToken();
+ //
+ // Ignore the version for now
+ //
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return false;
+ pointSize = (int)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return false;
+ family = (wxFontFamily)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return false;
+ style = (wxFontStyle)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return false;
+ weight = (wxFontWeight)l;
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return false;
+ underlined = l != 0;
+
+ faceName = tokenizer.GetNextToken();
+
+#ifndef __WXMAC__
+ if( !faceName )
+ return false;
+#endif
+
+ token = tokenizer.GetNextToken();
+ if ( !token.ToLong(&l) )
+ return false;
+ encoding = (wxFontEncoding)l;
+
+ return true;
+}
+
+wxString wxNativeFontInfo::ToString() const
+{
+ wxString s;
+
+ s.Printf(_T("%d;%d;%d;%d;%d;%d;%s;%d"),
+ 0, // version
+ pointSize,
+ family,
+ (int)style,
+ (int)weight,
+ underlined,
+ faceName.GetData(),
+ (int)encoding);
+
+ return s;
+}
+
+void wxNativeFontInfo::Init()
+{
+ pointSize = 0;
+ family = wxFONTFAMILY_DEFAULT;
+ style = wxFONTSTYLE_NORMAL;
+ weight = wxFONTWEIGHT_NORMAL;
+ underlined = false;
+ faceName.clear();
+ encoding = wxFONTENCODING_DEFAULT;
+}
+
+int wxNativeFontInfo::GetPointSize() const
+{
+ return pointSize;
+}
+
+wxFontStyle wxNativeFontInfo::GetStyle() const
+{
+ return style;
+}
+
+wxFontWeight wxNativeFontInfo::GetWeight() const
+{
+ return weight;
+}
+
+bool wxNativeFontInfo::GetUnderlined() const
+{
+ return underlined;
+}
+
+wxString wxNativeFontInfo::GetFaceName() const
+{
+ return faceName;
+}
+
+wxFontFamily wxNativeFontInfo::GetFamily() const
+{
+ return family;
+}
+
+wxFontEncoding wxNativeFontInfo::GetEncoding() const
+{
+ return encoding;
+}
+
+void wxNativeFontInfo::SetPointSize(int pointsize)
+{
+ pointSize = pointsize;
+}
+
+void wxNativeFontInfo::SetStyle(wxFontStyle style_)
+{
+ style = style_;
+}
+
+void wxNativeFontInfo::SetWeight(wxFontWeight weight_)
+{
+ weight = weight_;
+}
+
+void wxNativeFontInfo::SetUnderlined(bool underlined_)
+{
+ underlined = underlined_;
+}
+
+bool wxNativeFontInfo::SetFaceName(const wxString& facename_)
+{
+ faceName = facename_;
+ return true;
+}
+
+void wxNativeFontInfo::SetFamily(wxFontFamily family_)
+{
+ family = family_;
+}
+
+void wxNativeFontInfo::SetEncoding(wxFontEncoding encoding_)
+{
+ encoding = encoding_;
+}
+
+#endif // generic wxNativeFontInfo implementation
+
+// conversion to/from user-readable string: this is used in the generic
+// versions and under MSW as well because there is no standard font description
+// format there anyhow (but there is a well-defined standard for X11 fonts used
+// by wxGTK and wxMotif)
+
+#if defined(wxNO_NATIVE_FONTINFO) || defined(__WXMSW__) || defined (__WXPM__)
+
+wxString wxNativeFontInfo::ToUserString() const
+{
+ wxString desc;
+
+ // first put the adjectives, if any - this is English-centric, of course,
+ // but what else can we do?
+ if ( GetUnderlined() )
+ {
+ desc << _("underlined");
+ }
switch ( GetWeight() )
{
- case wxNORMAL: return _T("wxNORMAL");
- case wxBOLD: return _T("wxBOLD");
- case wxLIGHT: return _T("wxLIGHT");
- default: return _T("wxDEFAULT");
+ default:
+ wxFAIL_MSG( _T("unknown font weight") );
+ // fall through
+
+ case wxFONTWEIGHT_NORMAL:
+ break;
+
+ case wxFONTWEIGHT_LIGHT:
+ desc << _(" light");
+ break;
+
+ case wxFONTWEIGHT_BOLD:
+ desc << _(" bold");
+ break;
+ }
+
+ switch ( GetStyle() )
+ {
+ default:
+ wxFAIL_MSG( _T("unknown font style") );
+ // fall through
+
+ case wxFONTSTYLE_NORMAL:
+ break;
+
+ // we don't distinguish between the two for now anyhow...
+ case wxFONTSTYLE_ITALIC:
+ case wxFONTSTYLE_SLANT:
+ desc << _(" italic");
+ break;
+ }
+
+ wxString face = GetFaceName();
+ if ( !face.empty() )
+ {
+ desc << _T(' ') << face;
}
+
+ int size = GetPointSize();
+ if ( size != wxNORMAL_FONT->GetPointSize() )
+ {
+ desc << _T(' ') << size;
+ }
+
+#if wxUSE_FONTMAP
+ wxFontEncoding enc = GetEncoding();
+ if ( enc != wxFONTENCODING_DEFAULT && enc != wxFONTENCODING_SYSTEM )
+ {
+ desc << _T(' ') << wxFontMapper::GetEncodingName(enc);
+ }
+#endif // wxUSE_FONTMAP
+
+ return desc.Strip(wxString::both).MakeLower();
+}
+
+bool wxNativeFontInfo::FromUserString(const wxString& s)
+{
+ // reset to the default state
+ Init();
+
+ // parse a more or less free form string
+ //
+ // TODO: we should handle at least the quoted facenames
+ wxStringTokenizer tokenizer(s, _T(";, "), wxTOKEN_STRTOK);
+
+ wxString face;
+ unsigned long size;
+ bool weightfound = false, pointsizefound = false;
+#if wxUSE_FONTMAP
+ bool encodingfound = false;
+#endif
+
+ while ( tokenizer.HasMoreTokens() )
+ {
+ wxString token = tokenizer.GetNextToken();
+
+ // normalize it
+ token.Trim(true).Trim(false).MakeLower();
+
+ // look for the known tokens
+ if ( token == _T("underlined") || token == _("underlined") )
+ {
+ SetUnderlined(true);
+ }
+ else if ( token == _T("light") || token == _("light") )
+ {
+ SetWeight(wxFONTWEIGHT_LIGHT);
+ weightfound = true;
+ }
+ else if ( token == _T("bold") || token == _("bold") )
+ {
+ SetWeight(wxFONTWEIGHT_BOLD);
+ weightfound = true;
+ }
+ else if ( token == _T("italic") || token == _("italic") )
+ {
+ SetStyle(wxFONTSTYLE_ITALIC);
+ }
+ else if ( token.ToULong(&size) )
+ {
+ SetPointSize(size);
+ pointsizefound = true;
+ }
+ else
+ {
+#if wxUSE_FONTMAP
+ // try to interpret this as an encoding
+ wxFontEncoding encoding = wxFontMapper::Get()->CharsetToEncoding(token, false);
+ if ( encoding != wxFONTENCODING_DEFAULT &&
+ encoding != wxFONTENCODING_SYSTEM ) // returned when the recognition failed
+ {
+ SetEncoding(encoding);
+ encodingfound = true;
+ }
+ else
+ {
+#endif // wxUSE_FONTMAP
+
+ // assume it is the face name
+ if ( !face.empty() )
+ {
+ face += _T(' ');
+ }
+
+ face += token;
+
+ // skip the code which resets face below
+ continue;
+
+#if wxUSE_FONTMAP
+ }
+#endif // wxUSE_FONTMAP
+ }
+
+ // if we had had the facename, we shouldn't continue appending tokens
+ // to it (i.e. "foo bold bar" shouldn't result in the facename "foo
+ // bar")
+ if ( !face.empty() )
+ {
+ // NB: the check on the facename is implemented in wxFontBase::SetFaceName
+ // and not in wxNativeFontInfo::SetFaceName thus we need to explicitely
+ // call here wxFontEnumerator::IsValidFacename
+ if (!wxFontEnumerator::IsValidFacename(face) ||
+ !SetFaceName(face))
+ SetFaceName(wxNORMAL_FONT->GetFaceName());
+ face.clear();
+ }
+ }
+
+ // we might not have flushed it inside the loop
+ if ( !face.empty() )
+ {
+ // NB: the check on the facename is implemented in wxFontBase::SetFaceName
+ // and not in wxNativeFontInfo::SetFaceName thus we need to explicitely
+ // call here wxFontEnumerator::IsValidFacename
+ if (!wxFontEnumerator::IsValidFacename(face) ||
+ !SetFaceName(face))
+ SetFaceName(wxNORMAL_FONT->GetFaceName());
+ }
+
+ // set point size to default value if size was not given
+ if ( !pointsizefound )
+ SetPointSize(wxNORMAL_FONT->GetPointSize());
+
+ // set font weight to default value if weight was not given
+ if ( !weightfound )
+ SetWeight(wxFONTWEIGHT_NORMAL);
+
+#if wxUSE_FONTMAP
+ // set font encoding to default value if encoding was not given
+ if ( !encodingfound )
+ SetEncoding(wxFONTENCODING_SYSTEM);
+#endif // wxUSE_FONTMAP
+
+ return true;
}
+#endif // generic or wxMSW or wxOS2
projects / wxWidgets.git / blobdiff