]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/font.cpp
Somehow, setting a tint color makes gauge work :/.
[wxWidgets.git] / src / msw / font.cpp
index b9a5c35a21b6abdbd9e99c7e24b80e33b1d8b6e7..bbf7d849a6a33566b26488e2fc2f8c5602606f5d 100644 (file)
@@ -4,7 +4,6 @@
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
-// RCS-ID:      $Id$
 // Copyright:   (c) wxWidgets team
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
     #include "wx/utils.h"
     #include "wx/app.h"
     #include "wx/log.h"
-    #include "wx/encinfo.h"
+    #include "wx/msw/private.h"
 #endif // WX_PRECOMP
 
-#include "wx/msw/private.h"
-
+#include "wx/encinfo.h"
 #include "wx/fontutil.h"
 #include "wx/fontmap.h"
 
     #include "wx/sysopt.h"
 #endif
 
+#include "wx/scopeguard.h"
 #include "wx/tokenzr.h"
 
-#if wxUSE_EXTENDED_RTTI
-
-wxBEGIN_ENUM( wxFontFamily )
-    wxENUM_MEMBER( wxDEFAULT )
-    wxENUM_MEMBER( wxDECORATIVE )
-    wxENUM_MEMBER( wxROMAN )
-    wxENUM_MEMBER( wxSCRIPT )
-    wxENUM_MEMBER( wxSWISS )
-    wxENUM_MEMBER( wxMODERN )
-    wxENUM_MEMBER( wxTELETYPE )
-wxEND_ENUM( wxFontFamily )
-
-wxBEGIN_ENUM( wxFontStyle )
-    wxENUM_MEMBER( wxNORMAL )
-    wxENUM_MEMBER( wxITALIC )
-    wxENUM_MEMBER( wxSLANT )
-wxEND_ENUM( wxFontStyle )
-
-wxBEGIN_ENUM( wxFontWeight )
-    wxENUM_MEMBER( wxNORMAL )
-    wxENUM_MEMBER( wxLIGHT )
-    wxENUM_MEMBER( wxBOLD )
-wxEND_ENUM( wxFontWeight )
-
-IMPLEMENT_DYNAMIC_CLASS_WITH_COPY_XTI(wxFont, wxGDIObject,"wx/font.h")
-
-wxBEGIN_PROPERTIES_TABLE(wxFont)
-    wxPROPERTY( Size,int, SetPointSize, GetPointSize, 12 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
-    wxPROPERTY( Family, int  , SetFamily, GetFamily, (int)wxDEFAULT , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // wxFontFamily
-    wxPROPERTY( Style, int , SetStyle, GetStyle, (int)wxNORMAL , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // wxFontStyle
-    wxPROPERTY( Weight, int , SetWeight, GetWeight, (int)wxNORMAL , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // wxFontWeight
-    wxPROPERTY( Underlined, bool , SetUnderlined, GetUnderlined, false , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
-    wxPROPERTY( Face, wxString , SetFaceName, GetFaceName, EMPTY_MACROVALUE , 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 , int , Family , int , Style , int , Weight , bool , Underlined , wxString , Face )
-
-wxBEGIN_HANDLERS_TABLE(wxFont)
-wxEND_HANDLERS_TABLE()
-
-#else
-    IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
-#endif
-
-
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
@@ -109,7 +62,7 @@ public:
     wxFontRefData()
     {
         Init(-1, wxSize(0,0), false, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL,
-             wxFONTWEIGHT_NORMAL, false, wxEmptyString,
+             wxFONTWEIGHT_NORMAL, false, false, wxEmptyString,
              wxFONTENCODING_DEFAULT);
     }
 
@@ -120,11 +73,12 @@ public:
                   wxFontStyle style,
                   wxFontWeight weight,
                   bool underlined,
+                  bool strikethrough,
                   const wxString& faceName,
                   wxFontEncoding encoding)
     {
         Init(size, pixelSize, sizeUsingPixels, family, style, weight,
-             underlined, faceName, encoding);
+             underlined, strikethrough, faceName, encoding);
     }
 
     wxFontRefData(const wxNativeFontInfo& info, WXHFONT hFont = 0)
@@ -180,9 +134,26 @@ public:
         return m_nativeFontInfo.GetUnderlined();
     }
 
+    bool GetStrikethrough() const
+    {
+        return m_nativeFontInfo.GetStrikethrough();
+    }
+
     wxString GetFaceName() const
     {
-        return m_nativeFontInfo.GetFaceName();
+        wxString facename = m_nativeFontInfo.GetFaceName();
+        if ( facename.empty() )
+        {
+            facename = GetMSWFaceName();
+            if ( !facename.empty() )
+            {
+                // cache the face name, it shouldn't change unless the family
+                // does and wxNativeFontInfo::SetFamily() resets the face name
+                const_cast<wxFontRefData *>(this)->SetFaceName(facename);
+            }
+        }
+
+        return facename;
     }
 
     wxFontEncoding GetEncoding() const
@@ -192,8 +163,7 @@ public:
 
     WXHFONT GetHFONT() const
     {
-        if ( !m_hFont )
-            const_cast<wxFontRefData *>(this)->Alloc();
+        AllocIfNeeded();
 
         return (WXHFONT)m_hFont;
     }
@@ -216,6 +186,9 @@ public:
 
     void SetPixelSize(const wxSize& pixelSize)
     {
+        wxCHECK_RET( pixelSize.GetWidth() >= 0, "negative font width" );
+        wxCHECK_RET( pixelSize.GetHeight() != 0, "zero font height" );
+
         Free();
 
         m_nativeFontInfo.SetPixelSize(pixelSize);
@@ -257,6 +230,13 @@ public:
         m_nativeFontInfo.SetUnderlined(underlined);
     }
 
+    void SetStrikethrough(bool strikethrough)
+    {
+        Free();
+
+        m_nativeFontInfo.SetStrikethrough(strikethrough);
+    }
+
     void SetEncoding(wxFontEncoding encoding)
     {
         Free();
@@ -265,7 +245,18 @@ public:
     }
 
     const wxNativeFontInfo& GetNativeFontInfo() const
-        { return m_nativeFontInfo; }
+    {
+        // we need to create the font now to get the corresponding LOGFONT if
+        // it hadn't been done yet
+        AllocIfNeeded();
+
+        // ensure that we have a valid face name in our font information:
+        // GetFaceName() will try to retrieve it from our HFONT and save it if
+        // it was successful
+        (void)GetFaceName();
+
+        return m_nativeFontInfo;
+    }
 
     void SetNativeFontInfo(const wxNativeFontInfo& nativeFontInfo)
     {
@@ -283,11 +274,54 @@ protected:
               wxFontStyle style,
               wxFontWeight weight,
               bool underlined,
+              bool strikethrough,
               const wxString& faceName,
               wxFontEncoding encoding);
 
     void Init(const wxNativeFontInfo& info, WXHFONT hFont = 0);
 
+    void AllocIfNeeded() const
+    {
+        if ( !m_hFont )
+            const_cast<wxFontRefData *>(this)->Alloc();
+    }
+
+    // retrieve the face name really being used by the font: this is used to
+    // get the face name selected by the system when we don't specify it (but
+    // use just the family for example)
+    wxString GetMSWFaceName() const
+    {
+        ScreenHDC hdc;
+        SelectInHDC selectFont(hdc, (HFONT)GetHFONT());
+
+        UINT otmSize = GetOutlineTextMetrics(hdc, 0, NULL);
+        if ( !otmSize )
+        {
+            wxLogLastError("GetOutlineTextMetrics(NULL)");
+            return wxString();
+        }
+
+        OUTLINETEXTMETRIC * const
+            otm = static_cast<OUTLINETEXTMETRIC *>(malloc(otmSize));
+        wxON_BLOCK_EXIT1( free, otm );
+
+        otm->otmSize = otmSize;
+        if ( !GetOutlineTextMetrics(hdc, otmSize, otm) )
+        {
+            wxLogLastError("GetOutlineTextMetrics()");
+            return wxString();
+        }
+
+        // in spite of its type, the otmpFamilyName field of OUTLINETEXTMETRIC
+        // gives an offset in _bytes_ of the face (not family!) name from the
+        // struct start while the name itself is an array of TCHARs
+        //
+        // FWIW otmpFaceName contains the same thing as otmpFamilyName followed
+        // by a possible " Italic" or " Bold" or something else suffix
+        return reinterpret_cast<wxChar *>(otm) +
+                    wxPtrToUInt(otm->otmpFamilyName)/sizeof(wxChar);
+    }
+
     // are we using m_nativeFontInfo.lf.lfHeight for point size or pixel size?
     bool             m_sizeUsingPixels;
 
@@ -315,6 +349,7 @@ void wxFontRefData::Init(int pointSize,
                          wxFontStyle style,
                          wxFontWeight weight,
                          bool underlined,
+                         bool strikethrough,
                          const wxString& faceName,
                          wxFontEncoding encoding)
 {
@@ -329,6 +364,7 @@ void wxFontRefData::Init(int pointSize,
     SetStyle(style);
     SetWeight(weight);
     SetUnderlined(underlined);
+    SetStrikethrough(strikethrough);
 
     // set the family/facename
     SetFamily(family);
@@ -442,6 +478,11 @@ bool wxNativeFontInfo::GetUnderlined() const
     return lf.lfUnderline != 0;
 }
 
+bool wxNativeFontInfo::GetStrikethrough() const
+{
+    return lf.lfStrikeOut != 0;
+}
+
 wxString wxNativeFontInfo::GetFaceName() const
 {
     return lf.lfFaceName;
@@ -503,13 +544,16 @@ void wxNativeFontInfo::SetPointSize(int pointsize)
 
 void wxNativeFontInfo::SetPixelSize(const wxSize& pixelSize)
 {
-    // NOTE: although the MSW port allows for negative pixel size heights,
-    //       other ports don't and since it's a very useful feature assert
-    //       here if we get a negative height:
-    wxCHECK_RET( pixelSize.GetWidth() >= 0 && pixelSize.GetHeight() > 0,
-                 "Negative values for the pixel size or zero pixel height are not allowed" );
-
-    lf.lfHeight = pixelSize.GetHeight();
+    // MSW accepts both positive and negative heights here but they mean
+    // different things: positive specifies the cell height while negative
+    // specifies the character height. We used to just pass the value to MSW
+    // unchanged but changed the behaviour for positive values in 2.9.1 to
+    // match other ports and, more importantly, the expected behaviour. So now
+    // passing the negative height doesn't make sense at all any more but we
+    // still accept it for compatibility with the existing code which worked
+    // around the wrong interpretation of the height argument in older wxMSW
+    // versions by passing a negative value explicitly itself.
+    lf.lfHeight = -abs(pixelSize.GetHeight());
     lf.lfWidth = pixelSize.GetWidth();
 }
 
@@ -559,6 +603,11 @@ void wxNativeFontInfo::SetUnderlined(bool underlined)
     lf.lfUnderline = underlined;
 }
 
+void wxNativeFontInfo::SetStrikethrough(bool strikethrough)
+{
+    lf.lfStrikeOut = strikethrough;
+}
+
 bool wxNativeFontInfo::SetFaceName(const wxString& facename)
 {
     wxStrlcpy(lf.lfFaceName, facename.c_str(), WXSIZEOF(lf.lfFaceName));
@@ -567,84 +616,44 @@ bool wxNativeFontInfo::SetFaceName(const wxString& facename)
 
 void wxNativeFontInfo::SetFamily(wxFontFamily family)
 {
-    BYTE ff_family;
-    wxArrayString facename;
-
-    // the list of fonts associated with a family was partially
-    // taken from http://www.codestyle.org/css/font-family
+    BYTE ff_family = FF_DONTCARE;
 
     switch ( family )
     {
         case wxFONTFAMILY_SCRIPT:
             ff_family = FF_SCRIPT;
-            facename.Add(wxS("Script"));
-            facename.Add(wxS("Brush Script MT"));
-            facename.Add(wxS("Comic Sans MS"));
-            facename.Add(wxS("Lucida Handwriting"));
             break;
 
         case wxFONTFAMILY_DECORATIVE:
             ff_family = FF_DECORATIVE;
-            facename.Add(wxS("Old English Text MT"));
-            facename.Add(wxS("Comic Sans MS"));
-            facename.Add(wxS("Lucida Handwriting"));
             break;
 
         case wxFONTFAMILY_ROMAN:
             ff_family = FF_ROMAN;
-            facename.Add(wxS("Times New Roman"));
-            facename.Add(wxS("Georgia"));
-            facename.Add(wxS("Garamond"));
-            facename.Add(wxS("Bookman Old Style"));
-            facename.Add(wxS("Book Antiqua"));
             break;
 
         case wxFONTFAMILY_TELETYPE:
         case wxFONTFAMILY_MODERN:
             ff_family = FF_MODERN;
-            facename.Add(wxS("Courier New"));
-            facename.Add(wxS("Lucida Console"));
-            facename.Add(wxS("Andale Mono"));
-            facename.Add(wxS("OCR A Extended"));
-            facename.Add(wxS("Terminal"));
             break;
 
         case wxFONTFAMILY_SWISS:
+        case wxFONTFAMILY_DEFAULT:
             ff_family = FF_SWISS;
-            facename.Add(wxS("Arial"));
-            facename.Add(wxS("Century Gothic"));
-            facename.Add(wxS("Lucida Sans Unicode"));
-            facename.Add(wxS("Tahoma"));
-            facename.Add(wxS("Trebuchet MS"));
-            facename.Add(wxS("Verdana"));
             break;
 
-        case wxFONTFAMILY_DEFAULT:
-        default:
-        {
-            // We want Windows 2000 or later to have new fonts even MS Shell Dlg
-            // is returned as default GUI font for compatibility
-            int verMaj;
-            ff_family = FF_SWISS;
-            if(wxGetOsVersion(&verMaj) == wxOS_WINDOWS_NT && verMaj >= 5)
-                facename.Add(wxS("MS Shell Dlg 2"));
-            else
-                facename.Add(wxS("MS Shell Dlg"));
-
-            // Quoting the MSDN:
-            //     "MS Shell Dlg is a mapping mechanism that enables
-            //     U.S. English Microsoft Windows NT, and Microsoft Windows 2000 to
-            //     support locales that have characters that are not contained in code
-            //     page 1252. It is not a font but a face name for a nonexistent font."
-        }
+        case wxFONTFAMILY_UNKNOWN:
+            wxFAIL_MSG( "invalid font family" );
+            return;
     }
 
+    wxCHECK_RET( ff_family != FF_DONTCARE, "unknown wxFontFamily" );
+
     lf.lfPitchAndFamily = (BYTE)(DEFAULT_PITCH) | ff_family;
 
-    if ( !wxStrlen(lf.lfFaceName) )
-    {
-        SetFaceName(facename);
-    }
+    // reset the facename so that CreateFontIndirect() will automatically choose a
+    // face name based only on the font family.
+    lf.lfFaceName[0] = '\0';
 }
 
 void wxNativeFontInfo::SetEncoding(wxFontEncoding encoding)
@@ -678,7 +687,7 @@ bool wxNativeFontInfo::FromString(const wxString& s)
 {
     long l;
 
-    wxStringTokenizer tokenizer(s, wxS(";"));
+    wxStringTokenizer tokenizer(s, wxS(";"), wxTOKEN_RET_EMPTY_ALL);
 
     // first the version
     wxString token = tokenizer.GetNextToken();
@@ -750,10 +759,11 @@ bool wxNativeFontInfo::FromString(const wxString& s)
         return false;
     lf.lfPitchAndFamily = (BYTE)l;
 
-    token = tokenizer.GetNextToken();
-    if(!token)
+    if ( !tokenizer.HasMoreTokens() )
         return false;
-    wxStrcpy(lf.lfFaceName, token.c_str());
+
+    // the face name may be empty
+    SetFaceName(tokenizer.GetNextToken());
 
     return true;
 }
@@ -777,7 +787,7 @@ wxString wxNativeFontInfo::ToString() const
              lf.lfClipPrecision,
              lf.lfQuality,
              lf.lfPitchAndFamily,
-             (const wxChar*)lf.lfFaceName);
+             lf.lfFaceName);
 
     return s;
 }
@@ -793,6 +803,20 @@ wxFont::wxFont(const wxString& fontdesc)
         (void)Create(info);
 }
 
+wxFont::wxFont(const wxFontInfo& info)
+{
+    m_refData = new wxFontRefData(info.GetPointSize(),
+                                  info.GetPixelSize(),
+                                  info.IsUsingSizeInPixels(),
+                                  info.GetFamily(),
+                                  info.GetStyle(),
+                                  info.GetWeight(),
+                                  info.IsUnderlined(),
+                                  info.IsStrikethrough(),
+                                  info.GetFaceName(),
+                                  info.GetEncoding());
+}
+
 bool wxFont::Create(const wxNativeFontInfo& info, WXHFONT hFont)
 {
     UnRef();
@@ -816,14 +840,14 @@ bool wxFont::DoCreate(int pointSize,
 
     // wxDEFAULT is a valid value for the font size too so we must treat it
     // specially here (otherwise the size would be 70 == wxDEFAULT value)
-    if ( pointSize == wxDEFAULT )
+    if ( pointSize == wxDEFAULT || pointSize == -1 )
     {
         pointSize = wxNORMAL_FONT->GetPointSize();
     }
 
     m_refData = new wxFontRefData(pointSize, pixelSize, sizeUsingPixels,
                                   family, style, weight,
-                                  underlined, faceName, encoding);
+                                  underlined, false, faceName, encoding);
 
     return RealizeResource();
 }
@@ -945,6 +969,13 @@ void wxFont::SetUnderlined(bool underlined)
     M_FONTDATA->SetUnderlined(underlined);
 }
 
+void wxFont::SetStrikethrough(bool strikethrough)
+{
+    AllocExclusive();
+
+    M_FONTDATA->SetStrikethrough(strikethrough);
+}
+
 void wxFont::SetEncoding(wxFontEncoding encoding)
 {
     AllocExclusive();
@@ -984,10 +1015,8 @@ bool wxFont::IsUsingSizeInPixels() const
     return M_FONTDATA->IsUsingSizeInPixels();
 }
 
-wxFontFamily wxFont::GetFamily() const
+wxFontFamily wxFont::DoGetFamily() const
 {
-    wxCHECK_MSG( IsOk(), wxFONTFAMILY_MAX, wxT("invalid font") );
-
     return M_FONTDATA->GetFamily();
 }
 
@@ -1012,6 +1041,13 @@ bool wxFont::GetUnderlined() const
     return M_FONTDATA->GetUnderlined();
 }
 
+bool wxFont::GetStrikethrough() const
+{
+    wxCHECK_MSG( IsOk(), false, wxT("invalid font") );
+
+    return M_FONTDATA->GetStrikethrough();
+}
+
 wxString wxFont::GetFaceName() const
 {
     wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") );
@@ -1031,32 +1067,23 @@ const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
     return IsOk() ? &(M_FONTDATA->GetNativeFontInfo()) : NULL;
 }
 
-wxString wxFont::GetNativeFontInfoDesc() const
-{
-    wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") );
-
-    // be sure we have an HFONT associated...
-    const_cast<wxFont*>(this)->RealizeResource();
-    return wxFontBase::GetNativeFontInfoDesc();
-}
-
-wxString wxFont::GetNativeFontInfoUserDesc() const
-{
-    wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") );
-
-    // be sure we have an HFONT associated...
-    const_cast<wxFont*>(this)->RealizeResource();
-    return wxFontBase::GetNativeFontInfoUserDesc();
-}
-
 bool wxFont::IsFixedWidth() const
 {
     wxCHECK_MSG( IsOk(), false, wxT("invalid font") );
 
-    // the two low-order bits specify the pitch of the font, the rest is
-    // family
-    BYTE pitch =
-        (BYTE)(M_FONTDATA->GetNativeFontInfo().lf.lfPitchAndFamily & PITCH_MASK);
+    // LOGFONT doesn't contain the correct pitch information so we need to call
+    // GetTextMetrics() to get it
+    ScreenHDC hdc;
+    SelectInHDC selectFont(hdc, M_FONTDATA->GetHFONT());
+
+    TEXTMETRIC tm;
+    if ( !::GetTextMetrics(hdc, &tm) )
+    {
+        wxLogLastError(wxT("GetTextMetrics"));
+        return false;
+    }
 
-    return pitch == FIXED_PITCH;
+    // Quoting MSDN description of TMPF_FIXED_PITCH: "Note very carefully that
+    // those meanings are the opposite of what the constant name implies."
+    return !(tm.tmPitchAndFamily & TMPF_FIXED_PITCH);
 }