X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/df898907bbea0033859ef497daa016522036f726..eea4d01c65f9b29baa1193db762b4c6b8144af24:/src/msw/font.cpp diff --git a/src/msw/font.cpp b/src/msw/font.cpp index d99d2f8f64..d995db91ac 100644 --- a/src/msw/font.cpp +++ b/src/msw/font.cpp @@ -31,11 +31,10 @@ #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" @@ -43,54 +42,9 @@ #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 // ---------------------------------------------------------------------------- @@ -182,7 +136,19 @@ public: 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(this)->SetFaceName(facename); + } + } + + return facename; } wxFontEncoding GetEncoding() const @@ -192,8 +158,7 @@ public: WXHFONT GetHFONT() const { - if ( !m_hFont ) - const_cast(this)->Alloc(); + AllocIfNeeded(); return (WXHFONT)m_hFont; } @@ -216,6 +181,9 @@ 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); @@ -264,11 +232,19 @@ public: m_nativeFontInfo.SetEncoding(encoding); } - // native font info - bool HasNativeFontInfo() const { return true; } - 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) { @@ -291,7 +267,49 @@ protected: void Init(const wxNativeFontInfo& info, WXHFONT hFont = 0); - // are we using m_nativeFontInfo.lf.lfHeight for point size or pixel size? + void AllocIfNeeded() const + { + if ( !m_hFont ) + const_cast(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, m_hFont); + + UINT otmSize = GetOutlineTextMetrics(hdc, 0, NULL); + if ( !otmSize ) + { + wxLogLastError("GetOutlineTextMetrics(NULL)"); + return wxString(); + } + + OUTLINETEXTMETRIC * const + otm = static_cast(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(otm) + + wxPtrToUInt(otm->otmpFamilyName)/sizeof(wxChar); + } + + // are we using m_nativeFontInfo.lf.lfHeight for point size or pixel size? bool m_sizeUsingPixels; // Windows font handle, created on demand in GetHFONT() @@ -321,26 +339,26 @@ void wxFontRefData::Init(int pointSize, const wxString& faceName, wxFontEncoding encoding) { - m_sizeUsingPixels = sizeUsingPixels; - if ( m_sizeUsingPixels ) - SetPixelSize(pixelSize); - else - SetPointSize(pointSize); - - SetStyle(style); - SetWeight(weight); - SetUnderlined(underlined); - m_hFont = NULL; - // set the family/facename - SetFamily(family); - if ( !faceName.empty() ) - SetFaceName(faceName); - - // deal with encoding now (it may override the font family and facename - // so do it after setting them) - SetEncoding(encoding); + m_sizeUsingPixels = sizeUsingPixels; + if ( m_sizeUsingPixels ) + SetPixelSize(pixelSize); + else + SetPointSize(pointSize); + + SetStyle(style); + SetWeight(weight); + SetUnderlined(underlined); + + // set the family/facename + SetFamily(family); + if ( !faceName.empty() ) + SetFaceName(faceName); + + // deal with encoding now (it may override the font family and facename + // so do it after setting them) + SetEncoding(encoding); } void wxFontRefData::Init(const wxNativeFontInfo& info, WXHFONT hFont) @@ -506,13 +524,16 @@ 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(); } @@ -570,84 +591,44 @@ 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) @@ -681,7 +662,7 @@ 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(); @@ -753,10 +734,11 @@ 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; } @@ -780,7 +762,7 @@ wxString wxNativeFontInfo::ToString() const lf.lfClipPrecision, lf.lfQuality, lf.lfPitchAndFamily, - (const wxChar*)lf.lfFaceName); + lf.lfFaceName); return s; } @@ -852,7 +834,7 @@ wxGDIRefData *wxFont::CloneGDIRefData(const wxGDIRefData *data) const bool wxFont::RealizeResource() { // NOTE: the GetHFONT() call automatically triggers a reallocation of - // the HFONT if necessary (will do nothing if we already have the resource); + // the HFONT if necessary (will do nothing if we already have the resource); // it returns NULL only if there is a failure in wxFontRefData::Alloc()... return GetHFONT() != NULL; } @@ -987,10 +969,8 @@ 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(); } @@ -1031,41 +1011,26 @@ wxFontEncoding wxFont::GetEncoding() const const wxNativeFontInfo *wxFont::GetNativeFontInfo() const { - return IsOk() && M_FONTDATA->HasNativeFontInfo() ? &(M_FONTDATA->GetNativeFontInfo()) - : NULL; -} - -wxString wxFont::GetNativeFontInfoDesc() const -{ - wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") ); - - // be sure we have an HFONT associated... - const_cast(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(this)->RealizeResource(); - return wxFontBase::GetNativeFontInfoUserDesc(); + return IsOk() ? &(M_FONTDATA->GetNativeFontInfo()) : NULL; } bool wxFont::IsFixedWidth() const { wxCHECK_MSG( IsOk(), false, wxT("invalid font") ); - if ( M_FONTDATA->HasNativeFontInfo() ) - { - // 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()); - return pitch == FIXED_PITCH; + TEXTMETRIC tm; + if ( !::GetTextMetrics(hdc, &tm) ) + { + wxLogLastError(wxT("GetTextMetrics")); + return false; } - return wxFontBase::IsFixedWidth(); + // 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); }