]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/fontcmn.cpp
using common GetContentScaleFactor throughout part 1
[wxWidgets.git] / src / common / fontcmn.cpp
index ef779b3fb4f1d66f015ab236eaf4e35558e5907e..aeeccfb9e3aa289d3d97f52b216028b59ed0f093 100644 (file)
@@ -29,6 +29,7 @@
 #ifndef WX_PRECOMP
     #include "wx/dc.h"
     #include "wx/intl.h"
+    #include "wx/math.h"
     #include "wx/dcscreen.h"
     #include "wx/log.h"
     #include "wx/gdicmn.h"
@@ -57,13 +58,13 @@ extern const char *wxDumpFont(const wxFont *font)
     s.Printf(wxS("%s-%s-%s-%d-%d"),
              font->GetFaceName(),
              weight == wxFONTWEIGHT_NORMAL
-                ? _T("normal")
+                ? wxT("normal")
                 : weight == wxFONTWEIGHT_BOLD
-                    ? _T("bold")
-                    : _T("light"),
+                    ? wxT("bold")
+                    : wxT("light"),
              font->GetStyle() == wxFONTSTYLE_NORMAL
-                ? _T("regular")
-                : _T("italic"),
+                ? wxT("regular")
+                : wxT("italic"),
              font->GetPointSize(),
              font->GetEncoding());
 
@@ -71,36 +72,63 @@ extern const char *wxDumpFont(const wxFont *font)
     return buf;
 }
 
-// ============================================================================
-// implementation
-// ============================================================================
-
 // ----------------------------------------------------------------------------
-// helper functions
+// XTI
 // ----------------------------------------------------------------------------
 
-static inline int flags2Style(int flags)
-{
-    return flags & wxFONTFLAG_ITALIC
-                    ? wxFONTSTYLE_ITALIC
-                    : flags & wxFONTFLAG_SLANT
-                        ? wxFONTSTYLE_SLANT
-                        : wxFONTSTYLE_NORMAL;
-}
-
-static inline int flags2Weight(int flags)
-{
-    return flags & wxFONTFLAG_LIGHT
-                    ? wxFONTWEIGHT_LIGHT
-                    : flags & wxFONTFLAG_BOLD
-                        ? wxFONTWEIGHT_BOLD
-                        : wxFONTWEIGHT_NORMAL;
-}
+wxBEGIN_ENUM( wxFontFamily )
+wxENUM_MEMBER( wxFONTFAMILY_DEFAULT )
+wxENUM_MEMBER( wxFONTFAMILY_DECORATIVE )
+wxENUM_MEMBER( wxFONTFAMILY_ROMAN )
+wxENUM_MEMBER( wxFONTFAMILY_SCRIPT )
+wxENUM_MEMBER( wxFONTFAMILY_SWISS )
+wxENUM_MEMBER( wxFONTFAMILY_MODERN )
+wxENUM_MEMBER( wxFONTFAMILY_TELETYPE )
+wxEND_ENUM( wxFontFamily )
+
+wxBEGIN_ENUM( wxFontStyle )
+wxENUM_MEMBER( wxFONTSTYLE_NORMAL )
+wxENUM_MEMBER( wxFONTSTYLE_ITALIC )
+wxENUM_MEMBER( wxFONTSTYLE_SLANT )
+wxEND_ENUM( wxFontStyle )
+
+wxBEGIN_ENUM( wxFontWeight )
+wxENUM_MEMBER( wxFONTWEIGHT_NORMAL )
+wxENUM_MEMBER( wxFONTWEIGHT_LIGHT )
+wxENUM_MEMBER( wxFONTWEIGHT_BOLD )
+wxEND_ENUM( wxFontWeight )
+
+wxIMPLEMENT_DYNAMIC_CLASS_WITH_COPY_XTI(wxFont, wxGDIObject, "wx/font.h")
+
+//WX_IMPLEMENT_ANY_VALUE_TYPE(wxAnyValueTypeImpl<wxFont>)
+
+wxBEGIN_PROPERTIES_TABLE(wxFont)
+wxPROPERTY( Size,int, SetPointSize, GetPointSize, 12, 0 /*flags*/, \
+           wxT("Helpstring"), wxT("group"))
+wxPROPERTY( Family, wxFontFamily , SetFamily, GetFamily, (wxFontFamily)wxDEFAULT, \
+           0 /*flags*/, wxT("Helpstring"), wxT("group")) // wxFontFamily
+wxPROPERTY( Style, wxFontStyle, SetStyle, GetStyle, (wxFontStyle)wxNORMAL, 0 /*flags*/, \
+           wxT("Helpstring"), wxT("group")) // wxFontStyle
+wxPROPERTY( Weight, wxFontWeight, SetWeight, GetWeight, (wxFontWeight)wxNORMAL, 0 /*flags*/, \
+           wxT("Helpstring"), wxT("group")) // wxFontWeight
+wxPROPERTY( Underlined, bool, SetUnderlined, GetUnderlined, false, 0 /*flags*/, \
+           wxT("Helpstring"), wxT("group"))
+wxPROPERTY( Strikethrough, bool, SetStrikethrough, GetStrikethrough, false, 0, \
+                   wxT("Helpstring"), wxT("group"))
+wxPROPERTY( Face, wxString, SetFaceName, GetFaceName, wxEMPTY_PARAMETER_VALUE, \
+           0 /*flags*/, wxT("Helpstring"), wxT("group"))
+wxPROPERTY( Encoding, wxFontEncoding, SetEncoding, GetEncoding, \
+           wxFONTENCODING_DEFAULT, 0 /*flags*/, wxT("Helpstring"), wxT("group"))
+wxEND_PROPERTIES_TABLE()
+
+wxCONSTRUCTOR_6( wxFont, int, Size, wxFontFamily, Family, wxFontStyle, Style, wxFontWeight, Weight, \
+                bool, Underlined, wxString, Face )
+
+wxEMPTY_HANDLERS_TABLE(wxFont)
 
-static inline bool flags2Underlined(int flags)
-{
-    return (flags & wxFONTFLAG_UNDERLINED) != 0;
-}
+// ============================================================================
+// implementation
+// ============================================================================
 
 // ----------------------------------------------------------------------------
 // wxFontBase
@@ -114,7 +142,7 @@ 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") );
+                 wxT("can't set default encoding to wxFONTENCODING_DEFAULT") );
 
     ms_encodingDefault = encoding;
 }
@@ -156,8 +184,11 @@ wxFont *wxFontBase::New(int pointSize,
                         const wxString& face,
                         wxFontEncoding encoding)
 {
-    return New(pointSize, family, flags2Style(flags), flags2Weight(flags),
-               flags2Underlined(flags), face, encoding);
+    return New(pointSize, family,
+               GetStyleFromFlags(flags),
+               GetWeightFromFlags(flags),
+               GetUnderlinedFromFlags(flags),
+               face, encoding);
 }
 
 /* static */
@@ -167,8 +198,11 @@ wxFont *wxFontBase::New(const wxSize& pixelSize,
                         const wxString& face,
                         wxFontEncoding encoding)
 {
-    return New(pixelSize, family, flags2Style(flags), flags2Weight(flags),
-               flags2Underlined(flags), face, encoding);
+    return New(pixelSize, family,
+               GetStyleFromFlags(flags),
+               GetWeightFromFlags(flags),
+               GetUnderlinedFromFlags(flags),
+               face, encoding);
 }
 
 /* static */
@@ -214,7 +248,7 @@ void wxFontBase::SetPixelSize( const wxSize& pixelSize )
     // NOTE: this algorithm for adjusting the font size is used by all
     //       implementations of wxFont except under wxMSW and wxGTK where
     //       native support to font creation using pixel-size is provided.
-    
+
     int largestGood = 0;
     int smallestBad = 0;
 
@@ -275,6 +309,7 @@ void wxFontBase::DoSetNativeFontInfo(const wxNativeFontInfo& info)
     SetStyle(info.style);
     SetWeight(info.weight);
     SetUnderlined(info.underlined);
+    SetStrikethrough(info.strikethrough);
     SetFaceName(info.faceName);
     SetEncoding(info.encoding);
 #else
@@ -284,6 +319,8 @@ void wxFontBase::DoSetNativeFontInfo(const wxNativeFontInfo& info)
 
 wxString wxFontBase::GetNativeFontInfoDesc() const
 {
+    wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") );
+
     wxString fontDesc;
     const wxNativeFontInfo *fontInfo = GetNativeFontInfo();
     if ( fontInfo )
@@ -301,6 +338,8 @@ wxString wxFontBase::GetNativeFontInfoDesc() const
 
 wxString wxFontBase::GetNativeFontInfoUserDesc() const
 {
+    wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") );
+
     wxString fontDesc;
     const wxNativeFontInfo *fontInfo = GetNativeFontInfo();
     if ( fontInfo )
@@ -358,11 +397,26 @@ bool wxFontBase::operator==(const wxFont& font) const
             GetStyle() == font.GetStyle() &&
             GetWeight() == font.GetWeight() &&
             GetUnderlined() == font.GetUnderlined() &&
+            GetStrikethrough() == font.GetStrikethrough() &&
             GetFaceName().IsSameAs(font.GetFaceName(), false) &&
             GetEncoding() == font.GetEncoding()
            );
 }
 
+wxFontFamily wxFontBase::GetFamily() const
+{
+    wxCHECK_MSG( IsOk(), wxFONTFAMILY_UNKNOWN, wxS("invalid font") );
+
+    // Don't return wxFONTFAMILY_UNKNOWN from here because it prevents the code
+    // like wxFont(size, wxNORMAL_FONT->GetFamily(), ...) from working (see
+    // #12330). This is really just a hack but it allows to keep compatibility
+    // and doesn't really have any bad drawbacks so do this until someone comes
+    // up with a better idea.
+    const wxFontFamily family = DoGetFamily();
+
+    return family == wxFONTFAMILY_UNKNOWN ? wxFONTFAMILY_DEFAULT : family;
+}
+
 wxString wxFontBase::GetFamilyString() const
 {
     wxCHECK_MSG( IsOk(), "wxFONTFAMILY_DEFAULT", "invalid font" );
@@ -421,6 +475,93 @@ bool wxFontBase::SetFaceName(const wxString& facename)
     return true;
 }
 
+void wxFontBase::SetSymbolicSize(wxFontSymbolicSize size)
+{
+    SetSymbolicSizeRelativeTo(size, wxNORMAL_FONT->GetPointSize());
+}
+
+/* static */
+int wxFontBase::AdjustToSymbolicSize(wxFontSymbolicSize size, int base)
+{
+    // Using a fixed factor (1.2, from CSS2) is a bad idea as explained at
+    // http://www.w3.org/TR/CSS21/fonts.html#font-size-props so use the values
+    // from http://style.cleverchimp.com/font_size_intervals/altintervals.html
+    // instead.
+    static const float factors[] = { 0.60f, 0.75f, 0.89f, 1.f, 1.2f, 1.5f, 2.f };
+
+    wxCOMPILE_TIME_ASSERT
+    (
+        WXSIZEOF(factors) == wxFONTSIZE_XX_LARGE - wxFONTSIZE_XX_SMALL + 1,
+        WrongFontSizeFactorsSize
+    );
+
+    return wxRound(factors[size - wxFONTSIZE_XX_SMALL]*base);
+}
+
+wxFont& wxFont::MakeBold()
+{
+    SetWeight(wxFONTWEIGHT_BOLD);
+    return *this;
+}
+
+wxFont wxFont::Bold() const
+{
+    wxFont font(*this);
+    font.MakeBold();
+    return font;
+}
+
+wxFont& wxFont::MakeItalic()
+{
+    SetStyle(wxFONTSTYLE_ITALIC);
+    return *this;
+}
+
+wxFont wxFont::Italic() const
+{
+    wxFont font(*this);
+    font.MakeItalic();
+    return font;
+}
+
+wxFont& wxFont::MakeUnderlined()
+{
+    SetUnderlined(true);
+    return *this;
+}
+
+wxFont wxFont::Underlined() const
+{
+    wxFont font(*this);
+    font.MakeUnderlined();
+    return font;
+}
+
+wxFont wxFont::Strikethrough() const
+{
+    wxFont font(*this);
+    font.MakeStrikethrough();
+    return font;
+}
+
+wxFont& wxFont::MakeStrikethrough()
+{
+    SetStrikethrough(true);
+    return *this;
+}
+
+wxFont& wxFont::Scale(float x)
+{
+    SetPointSize(int(x*GetPointSize() + 0.5));
+    return *this;
+}
+
+wxFont wxFont::Scaled(float x) const
+{
+    wxFont font(*this);
+    font.Scale(x);
+    return font;
+}
 
 // ----------------------------------------------------------------------------
 // wxNativeFontInfo
@@ -453,19 +594,22 @@ void wxNativeFontInfo::SetFaceName(const wxArrayString& facenames)
 
 // These are the generic forms of FromString()/ToString.
 //
-// convert to/from the string representation: format is
-//      version;pointsize;family;style;weight;underlined;facename;encoding
+// convert to/from the string representation: the general format is
+// "version;the rest..." with currently defined versions being:
+//
+//      0;pointsize;family;style;weight;underlined;facename;encoding
+//      1;pointsize;family;style;weight;underlined;strikethrough;facename;encoding
 
 bool wxNativeFontInfo::FromString(const wxString& s)
 {
     long l;
+    unsigned long version;
 
-    wxStringTokenizer tokenizer(s, _T(";"));
+    wxStringTokenizer tokenizer(s, wxT(";"));
 
     wxString token = tokenizer.GetNextToken();
-    //
-    //  Ignore the version for now
-    //
+    if ( !token.ToULong(&version) || version > 1 )
+        return false;
 
     token = tokenizer.GetNextToken();
     if ( !token.ToLong(&l) )
@@ -492,6 +636,14 @@ bool wxNativeFontInfo::FromString(const wxString& s)
         return false;
     underlined = l != 0;
 
+    if ( version == 1 )
+    {
+        token = tokenizer.GetNextToken();
+        if ( !token.ToLong(&l) )
+            return false;
+        strikethrough = l != 0;
+    }
+
     faceName = tokenizer.GetNextToken();
 
 #ifndef __WXMAC__
@@ -511,13 +663,14 @@ wxString wxNativeFontInfo::ToString() const
 {
     wxString s;
 
-    s.Printf(_T("%d;%d;%d;%d;%d;%d;%s;%d"),
-             0,                                 // version
+    s.Printf(wxT("%d;%d;%d;%d;%d;%d;%d;%s;%d"),
+             1,                                 // version
              pointSize,
              family,
              (int)style,
              (int)weight,
              underlined,
+             strikethrough,
              faceName.GetData(),
              (int)encoding);
 
@@ -531,6 +684,7 @@ void wxNativeFontInfo::Init()
     style = wxFONTSTYLE_NORMAL;
     weight = wxFONTWEIGHT_NORMAL;
     underlined = false;
+    strikethrough = false;
     faceName.clear();
     encoding = wxFONTENCODING_DEFAULT;
 }
@@ -555,6 +709,11 @@ bool wxNativeFontInfo::GetUnderlined() const
     return underlined;
 }
 
+bool wxNativeFontInfo::GetStrikethrough() const
+{
+    return strikethrough;
+}
+
 wxString wxNativeFontInfo::GetFaceName() const
 {
     return faceName;
@@ -590,6 +749,11 @@ void wxNativeFontInfo::SetUnderlined(bool underlined_)
     underlined = underlined_;
 }
 
+void wxNativeFontInfo::SetStrikethrough(bool strikethrough_)
+{
+    strikethrough = strikethrough_;
+}
+
 bool wxNativeFontInfo::SetFaceName(const wxString& facename_)
 {
     faceName = facename_;
@@ -626,10 +790,15 @@ wxString wxNativeFontInfo::ToUserString() const
         desc << _("underlined");
     }
 
+    if ( GetStrikethrough() )
+    {
+        desc << _("strikethrough");
+    }
+
     switch ( GetWeight() )
     {
         default:
-            wxFAIL_MSG( _T("unknown font weight") );
+            wxFAIL_MSG( wxT("unknown font weight") );
             // fall through
 
         case wxFONTWEIGHT_NORMAL:
@@ -647,7 +816,7 @@ wxString wxNativeFontInfo::ToUserString() const
     switch ( GetStyle() )
     {
         default:
-            wxFAIL_MSG( _T("unknown font style") );
+            wxFAIL_MSG( wxT("unknown font style") );
             // fall through
 
         case wxFONTSTYLE_NORMAL:
@@ -673,10 +842,10 @@ wxString wxNativeFontInfo::ToUserString() const
             // that the different words which compose this facename are
             // not different adjectives or other data but rather all parts
             // of the facename
-            desc << _T(" '") << face << _("'");
+            desc << wxT(" '") << face << wxT("'");
         }
         else
-            desc << _T(' ') << face;
+            desc << wxT(' ') << face;
     }
     else // no face name specified
     {
@@ -723,14 +892,14 @@ wxString wxNativeFontInfo::ToUserString() const
     int size = GetPointSize();
     if ( size != wxNORMAL_FONT->GetPointSize() )
     {
-        desc << _T(' ') << size;
+        desc << wxT(' ') << size;
     }
 
 #if wxUSE_FONTMAP
     wxFontEncoding enc = GetEncoding();
     if ( enc != wxFONTENCODING_DEFAULT && enc != wxFONTENCODING_SYSTEM )
     {
-        desc << _T(' ') << wxFontMapper::GetEncodingName(enc);
+        desc << wxT(' ') << wxFontMapper::GetEncodingName(enc);
     }
 #endif // wxUSE_FONTMAP
 
@@ -748,7 +917,7 @@ bool wxNativeFontInfo::FromUserString(const wxString& s)
     wxString toparse(s);
 
     // parse a more or less free form string
-    wxStringTokenizer tokenizer(toparse, _T(";, "), wxTOKEN_STRTOK);
+    wxStringTokenizer tokenizer(toparse, wxT(";, "), wxTOKEN_STRTOK);
 
     wxString face;
     unsigned long size;
@@ -766,7 +935,7 @@ bool wxNativeFontInfo::FromUserString(const wxString& s)
         token.Trim(true).Trim(false).MakeLower();
         if (insideQuotes)
         {
-            if (token.StartsWith("'") || 
+            if (token.StartsWith("'") ||
                 token.EndsWith("'"))
             {
                 insideQuotes = false;
@@ -794,21 +963,25 @@ bool wxNativeFontInfo::FromUserString(const wxString& s)
             face += " " + token;
             continue;
         }
-        if ( token == _T("underlined") || token == _("underlined") )
+        if ( token == wxT("underlined") || token == _("underlined") )
         {
             SetUnderlined(true);
         }
-        else if ( token == _T("light") || token == _("light") )
+        else if ( token == wxT("strikethrough") || token == _("strikethrough") )
+        {
+            SetStrikethrough(true);
+        }
+        else if ( token == wxT("light") || token == _("light") )
         {
             SetWeight(wxFONTWEIGHT_LIGHT);
             weightfound = true;
         }
-        else if ( token == _T("bold") || token == _("bold") )
+        else if ( token == wxT("bold") || token == _("bold") )
         {
             SetWeight(wxFONTWEIGHT_BOLD);
             weightfound = true;
         }
-        else if ( token == _T("italic") || token == _("italic") )
+        else if ( token == wxT("italic") || token == _("italic") )
         {
             SetStyle(wxFONTSTYLE_ITALIC);
         }
@@ -835,7 +1008,7 @@ bool wxNativeFontInfo::FromUserString(const wxString& s)
                 // assume it is the face name
             if ( !face.empty() )
             {
-                face += _T(' ');
+                face += wxT(' ');
             }
 
             face += token;
@@ -872,11 +1045,11 @@ bool wxNativeFontInfo::FromUserString(const wxString& s)
                     family = wxFONTFAMILY_TELETYPE;
                 else
                     return false;
-                
+
                 SetFamily(family);
             }
             // NB: the check on the facename is implemented in wxFontBase::SetFaceName
-            //     and not in wxNativeFontInfo::SetFaceName thus we need to explicitely
+            //     and not in wxNativeFontInfo::SetFaceName thus we need to explicitly
             //     call here wxFontEnumerator::IsValidFacename
             else if (
 #if wxUSE_FONTENUM
@@ -895,7 +1068,7 @@ bool wxNativeFontInfo::FromUserString(const wxString& s)
     if ( !face.empty() )
     {
         // NB: the check on the facename is implemented in wxFontBase::SetFaceName
-        //     and not in wxNativeFontInfo::SetFaceName thus we need to explicitely
+        //     and not in wxNativeFontInfo::SetFaceName thus we need to explicitly
         //     call here wxFontEnumerator::IsValidFacename
         if (
 #if wxUSE_FONTENUM
@@ -936,7 +1109,7 @@ wxString wxToString(const wxFontBase& font)
 
 bool wxFromString(const wxString& str, wxFontBase *font)
 {
-    wxCHECK_MSG( font, false, _T("NULL output parameter") );
+    wxCHECK_MSG( font, false, wxT("NULL output parameter") );
 
     if ( str.empty() )
     {