X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d014871de86372a522e6d1590b2bb7e3aa6d21f4..edae63b0769fab90e3a64d0e211ae3090b6120c8:/src/msw/font.cpp diff --git a/src/msw/font.cpp b/src/msw/font.cpp index c0ae868c0a..b1e347d674 100644 --- a/src/msw/font.cpp +++ b/src/msw/font.cpp @@ -43,6 +43,7 @@ #include "wx/sysopt.h" #endif +#include "wx/scopeguard.h" #include "wx/tokenzr.h" #if wxUSE_EXTENDED_RTTI @@ -134,87 +135,77 @@ public: wxFontRefData(const wxFontRefData& data) : wxGDIRefData() { - if ( data.m_nativeFontInfoOk ) - { - Init(data.m_nativeFontInfo); - } - else - { - Init(data.m_pointSize, data.m_pixelSize, data.m_sizeUsingPixels, - data.m_family, data.m_style, data.m_weight, - data.m_underlined, data.m_faceName, data.m_encoding); - } + Init(data.m_nativeFontInfo); } virtual ~wxFontRefData(); // operations - bool Alloc(const wxFont *font); + bool Alloc(); void Free(); // all wxFont accessors int GetPointSize() const { - return m_nativeFontInfoOk ? m_nativeFontInfo.GetPointSize() - : m_pointSize; + return m_nativeFontInfo.GetPointSize(); } wxSize GetPixelSize() const { - return m_nativeFontInfoOk ? m_nativeFontInfo.GetPixelSize() - : m_pixelSize; + return m_nativeFontInfo.GetPixelSize(); } bool IsUsingSizeInPixels() const { - return m_nativeFontInfoOk ? true : m_sizeUsingPixels; + return m_sizeUsingPixels; } wxFontFamily GetFamily() const { - return m_family; + return m_nativeFontInfo.GetFamily(); } wxFontStyle GetStyle() const { - return m_nativeFontInfoOk ? m_nativeFontInfo.GetStyle() - : m_style; + return m_nativeFontInfo.GetStyle(); } wxFontWeight GetWeight() const { - return m_nativeFontInfoOk ? m_nativeFontInfo.GetWeight() - : m_weight; + return m_nativeFontInfo.GetWeight(); } bool GetUnderlined() const { - return m_nativeFontInfoOk ? m_nativeFontInfo.GetUnderlined() - : m_underlined; + return m_nativeFontInfo.GetUnderlined(); } wxString GetFaceName() const { - wxString s; - if ( m_nativeFontInfoOk ) - s = m_nativeFontInfo.GetFaceName(); - else - s = m_faceName; + 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 s; + return facename; } wxFontEncoding GetEncoding() const { - return m_nativeFontInfoOk ? m_nativeFontInfo.GetEncoding() - : m_encoding; + return m_nativeFontInfo.GetEncoding(); } - WXHFONT GetHFONT(const wxFont *font) const + WXHFONT GetHFONT() const { - if ( !m_hFont ) - const_cast(this)->Alloc(font); + AllocIfNeeded(); return (WXHFONT)m_hFont; } @@ -231,102 +222,82 @@ public: { Free(); - if ( m_nativeFontInfoOk ) - { - m_nativeFontInfo.SetPointSize(pointSize); - } - else - { - m_pointSize = pointSize; - m_sizeUsingPixels = false; - } + m_nativeFontInfo.SetPointSize(pointSize); + m_sizeUsingPixels = false; } void SetPixelSize(const wxSize& pixelSize) { + wxCHECK_RET( pixelSize.GetWidth() >= 0, "negative font width" ); + wxCHECK_RET( pixelSize.GetHeight() != 0, "zero font height" ); + Free(); - if ( m_nativeFontInfoOk ) - { - m_nativeFontInfo.SetPixelSize(pixelSize); - } - else - { - m_pixelSize = pixelSize; - m_sizeUsingPixels = true; - } + m_nativeFontInfo.SetPixelSize(pixelSize); + m_sizeUsingPixels = true; } void SetFamily(wxFontFamily family) { Free(); - m_family = family; + m_nativeFontInfo.SetFamily(family); } void SetStyle(wxFontStyle style) { Free(); - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetStyle((wxFontStyle)style); - else - m_style = style; + m_nativeFontInfo.SetStyle(style); } void SetWeight(wxFontWeight weight) { Free(); - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetWeight((wxFontWeight)weight); - else - m_weight = weight; + m_nativeFontInfo.SetWeight(weight); } bool SetFaceName(const wxString& faceName) { Free(); - if ( m_nativeFontInfoOk ) - return m_nativeFontInfo.SetFaceName(faceName); - - m_faceName = faceName; - return true; + return m_nativeFontInfo.SetFaceName(faceName); } void SetUnderlined(bool underlined) { Free(); - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetUnderlined(underlined); - else - m_underlined = underlined; + m_nativeFontInfo.SetUnderlined(underlined); } void SetEncoding(wxFontEncoding encoding) { Free(); - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetEncoding(encoding); - else - m_encoding = encoding; + m_nativeFontInfo.SetEncoding(encoding); } - // native font info - bool HasNativeFontInfo() const { return m_nativeFontInfoOk; } - 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) { Free(); m_nativeFontInfo = nativeFontInfo; - m_nativeFontInfoOk = true; } protected: @@ -343,23 +314,56 @@ protected: void Init(const wxNativeFontInfo& info, WXHFONT hFont = 0); - // font characteristics - int m_pointSize; - wxSize m_pixelSize; - bool m_sizeUsingPixels; - wxFontFamily m_family; - wxFontStyle m_style; - wxFontWeight m_weight; - bool m_underlined; - wxString m_faceName; - wxFontEncoding m_encoding; + 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() - HFONT m_hFont; + HFONT m_hFont; // Native font info wxNativeFontInfo m_nativeFontInfo; - bool m_nativeFontInfoOk; }; #define M_FONTDATA ((wxFontRefData*)m_refData) @@ -382,20 +386,26 @@ void wxFontRefData::Init(int pointSize, const wxString& faceName, wxFontEncoding encoding) { - m_style = style; - m_pointSize = pointSize == -1 ? wxNORMAL_FONT->GetPointSize() : pointSize; - m_pixelSize = pixelSize; - m_sizeUsingPixels = sizeUsingPixels; - m_family = family; - m_style = style; - m_weight = weight; - m_underlined = underlined; - m_faceName = faceName; - m_encoding = encoding; + m_hFont = NULL; - m_hFont = 0; - - m_nativeFontInfoOk = false; + 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) @@ -405,13 +415,9 @@ void wxFontRefData::Init(const wxNativeFontInfo& info, WXHFONT hFont) // (for example where we can't guarantee conversion from HFONT // to LOGFONT back to HFONT) m_hFont = (HFONT)hFont; - - m_nativeFontInfoOk = true; m_nativeFontInfo = info; - // This is the best we can do since we don't have the - // correct information at this point. - m_family = wxFONTFAMILY_SWISS; + // TODO: m_sizeUsingPixels? } wxFontRefData::~wxFontRefData() @@ -419,18 +425,8 @@ wxFontRefData::~wxFontRefData() Free(); } -bool wxFontRefData::Alloc(const wxFont *font) +bool wxFontRefData::Alloc() { - if ( !m_nativeFontInfoOk ) - { - // NOTE: we use wxNativeInfo::InitFromFont to avoid code duplication: - // it results in using our m_* variables (except for m_hFont and - // for m_nativeFontInfo obviously) for the initialization - // of the wxNativeInfo::lf member. - m_nativeFontInfo.InitFromFont(*font); - m_nativeFontInfoOk = true; - } - m_hFont = ::CreateFontIndirect(&m_nativeFontInfo.lf); if ( !m_hFont ) { @@ -469,7 +465,7 @@ void wxNativeFontInfo::Init() #ifdef __WXWINCE__ lf.lfQuality = CLEARTYPE_QUALITY; #else - lf.lfQuality = wxSystemOptions::GetOptionInt(_T("msw.font.no-proof-quality")) + lf.lfQuality = wxSystemOptions::GetOptionInt("msw.font.no-proof-quality") ? DEFAULT_QUALITY : PROOF_QUALITY; #endif @@ -526,14 +522,14 @@ wxFontFamily wxNativeFontInfo::GetFamily() const // extract family from pitch-and-family switch ( lf.lfPitchAndFamily & ~PITCH_MASK ) { + case 0: + family = wxFONTFAMILY_UNKNOWN; + break; + case FF_ROMAN: family = wxFONTFAMILY_ROMAN; break; - default: - wxFAIL_MSG( _T("unknown LOGFONT::lfFamily value") ); - // fall through - case FF_SWISS: family = wxFONTFAMILY_SWISS; break; @@ -549,6 +545,11 @@ wxFontFamily wxNativeFontInfo::GetFamily() const case FF_DECORATIVE: family = wxFONTFAMILY_DECORATIVE; break; + + default: + wxFAIL_MSG( "unknown LOGFONT::lfFamily value" ); + family = wxFONTFAMILY_UNKNOWN; + // just to avoid a warning } return family; @@ -570,13 +571,16 @@ 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(); } @@ -585,7 +589,7 @@ void wxNativeFontInfo::SetStyle(wxFontStyle style) switch ( style ) { default: - wxFAIL_MSG( _T("unknown font style") ); + wxFAIL_MSG( "unknown font style" ); // fall through case wxFONTSTYLE_NORMAL: @@ -604,7 +608,7 @@ void wxNativeFontInfo::SetWeight(wxFontWeight weight) switch ( weight ) { default: - wxFAIL_MSG( _T("unknown font weight") ); + wxFAIL_MSG( "unknown font weight" ); // fall through case wxFONTWEIGHT_NORMAL: @@ -634,84 +638,44 @@ 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 wxSCRIPT: + case wxFONTFAMILY_SCRIPT: ff_family = FF_SCRIPT; - facename.Add(_T("Script")); - facename.Add(_T("Brush Script MT")); - facename.Add(_T("Comic Sans MS")); - facename.Add(_T("Lucida Handwriting")); break; - case wxDECORATIVE: + case wxFONTFAMILY_DECORATIVE: ff_family = FF_DECORATIVE; - facename.Add(_T("Old English Text MT")); - facename.Add(_T("Comic Sans MS")); - facename.Add(_T("Lucida Handwriting")); break; - case wxROMAN: + case wxFONTFAMILY_ROMAN: ff_family = FF_ROMAN; - facename.Add(_T("Times New Roman")); - facename.Add(_T("Georgia")); - facename.Add(_T("Garamond")); - facename.Add(_T("Bookman Old Style")); - facename.Add(_T("Book Antiqua")); break; - case wxTELETYPE: - case wxMODERN: + case wxFONTFAMILY_TELETYPE: + case wxFONTFAMILY_MODERN: ff_family = FF_MODERN; - facename.Add(_T("Courier New")); - facename.Add(_T("Lucida Console")); - facename.Add(_T("Andale Mono")); - facename.Add(_T("OCR A Extended")); - facename.Add(_T("Terminal")); break; - case wxSWISS: + case wxFONTFAMILY_SWISS: + case wxFONTFAMILY_DEFAULT: ff_family = FF_SWISS; - facename.Add(_T("Arial")); - facename.Add(_T("Century Gothic")); - facename.Add(_T("Lucida Sans Unicode")); - facename.Add(_T("Tahoma")); - facename.Add(_T("Trebuchet MS")); - facename.Add(_T("Verdana")); break; - case wxDEFAULT: - 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(_T("MS Shell Dlg 2")); - else - facename.Add(_T("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) @@ -745,11 +709,11 @@ bool wxNativeFontInfo::FromString(const wxString& s) { long l; - wxStringTokenizer tokenizer(s, _T(";")); + wxStringTokenizer tokenizer(s, wxS(";"), wxTOKEN_RET_EMPTY_ALL); // first the version wxString token = tokenizer.GetNextToken(); - if ( token != _T('0') ) + if ( token != wxS('0') ) return false; token = tokenizer.GetNextToken(); @@ -817,10 +781,11 @@ 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; } @@ -829,7 +794,7 @@ wxString wxNativeFontInfo::ToString() const { wxString s; - s.Printf(_T("%d;%ld;%ld;%ld;%ld;%ld;%d;%d;%d;%d;%d;%d;%d;%d;%s"), + s.Printf(wxS("%d;%ld;%ld;%ld;%ld;%ld;%d;%d;%d;%d;%d;%d;%d;%d;%s"), 0, // version, in case we want to change the format later lf.lfHeight, lf.lfWidth, @@ -844,7 +809,7 @@ wxString wxNativeFontInfo::ToString() const lf.lfClipPrecision, lf.lfQuality, lf.lfPitchAndFamily, - (const wxChar*)lf.lfFaceName); + lf.lfFaceName); return s; } @@ -916,7 +881,7 @@ 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; } @@ -940,7 +905,7 @@ WXHFONT wxFont::GetHFONT() const { // NOTE: wxFontRefData::GetHFONT() will automatically call // wxFontRefData::Alloc() if necessary - return M_FONTDATA ? M_FONTDATA->GetHFONT(this) : 0; + return M_FONTDATA ? M_FONTDATA->GetHFONT() : 0; } bool wxFont::IsFree() const @@ -1095,41 +1060,26 @@ 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); }