X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/521bf4ff3ef47059265beff5d53c9e1162beb122..57d3e26697255a5c5154b4a0dc26d6eab23ff871:/src/msw/font.cpp diff --git a/src/msw/font.cpp b/src/msw/font.cpp index 184ce8ba50..d995db91ac 100644 --- a/src/msw/font.cpp +++ b/src/msw/font.cpp @@ -24,67 +24,26 @@ #pragma hdrstop #endif +#include "wx/font.h" + #ifndef WX_PRECOMP #include "wx/list.h" #include "wx/utils.h" #include "wx/app.h" - #include "wx/font.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/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) +#ifndef __WXWINCE__ + #include "wx/sysopt.h" #endif +#include "wx/scopeguard.h" +#include "wx/tokenzr.h" // ---------------------------------------------------------------------------- // constants @@ -111,9 +70,9 @@ public: wxFontRefData(int size, const wxSize& pixelSize, bool sizeUsingPixels, - int family, - int style, - int weight, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, bool underlined, const wxString& faceName, wxFontEncoding encoding) @@ -129,196 +88,239 @@ 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(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; } - int GetFamily() const + wxFontFamily GetFamily() const { - return m_family; + return m_nativeFontInfo.GetFamily(); } - int GetStyle() const + wxFontStyle GetStyle() const { - return m_nativeFontInfoOk ? m_nativeFontInfo.GetStyle() - : m_style; + return m_nativeFontInfo.GetStyle(); } - int GetWeight() const + 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 { return m_hFont; } + WXHFONT GetHFONT() const + { + AllocIfNeeded(); + + return (WXHFONT)m_hFont; + } - // ... and setters + bool HasHFONT() const + { + return m_hFont != 0; + } + + // ... and setters: notice that all of them invalidate the currently + // allocated HFONT, if any, so that the next call to GetHFONT() recreates a + // new one void SetPointSize(int pointSize) { - if ( m_nativeFontInfoOk ) - { - m_nativeFontInfo.SetPointSize(pointSize); - } - else - { - m_pointSize = pointSize; - m_sizeUsingPixels = false; - } + Free(); + + m_nativeFontInfo.SetPointSize(pointSize); + m_sizeUsingPixels = false; } void SetPixelSize(const wxSize& pixelSize) { - if ( m_nativeFontInfoOk ) - { - m_nativeFontInfo.SetPixelSize(pixelSize); - } - else - { - m_pixelSize = pixelSize; - m_sizeUsingPixels = true; - } + wxCHECK_RET( pixelSize.GetWidth() >= 0, "negative font width" ); + wxCHECK_RET( pixelSize.GetHeight() != 0, "zero font height" ); + + Free(); + + m_nativeFontInfo.SetPixelSize(pixelSize); + m_sizeUsingPixels = true; } - void SetFamily(int family) + void SetFamily(wxFontFamily family) { - m_family = family; + Free(); + + m_nativeFontInfo.SetFamily(family); } - void SetStyle(int style) + void SetStyle(wxFontStyle style) { - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetStyle((wxFontStyle)style); - else - m_style = style; + Free(); + + m_nativeFontInfo.SetStyle(style); } - void SetWeight(int weight) + void SetWeight(wxFontWeight weight) { - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetWeight((wxFontWeight)weight); - else - m_weight = weight; + Free(); + + m_nativeFontInfo.SetWeight(weight); } - void SetFaceName(const wxString& faceName) + bool SetFaceName(const wxString& faceName) { - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetFaceName(faceName); - else - m_faceName = faceName; + Free(); + + return m_nativeFontInfo.SetFaceName(faceName); } void SetUnderlined(bool underlined) { - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetUnderlined(underlined); - else - m_underlined = underlined; + Free(); + + m_nativeFontInfo.SetUnderlined(underlined); } void SetEncoding(wxFontEncoding encoding) { - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetEncoding(encoding); - else - m_encoding = encoding; - } + Free(); - // native font info tests - bool HasNativeFontInfo() const { return m_nativeFontInfoOk; } + m_nativeFontInfo.SetEncoding(encoding); + } 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; + } protected: // common part of all ctors void Init(int size, const wxSize& pixelSize, bool sizeUsingPixels, - int family, - int style, - int weight, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, bool underlined, const wxString& faceName, wxFontEncoding encoding); void Init(const wxNativeFontInfo& info, WXHFONT hFont = 0); - // font characterstics - int m_pointSize; - wxSize m_pixelSize; - bool m_sizeUsingPixels; - int m_family; - int m_style; - int 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 ); - // Windows font handle - WXHFONT m_hFont; + 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; // Native font info wxNativeFontInfo m_nativeFontInfo; - bool m_nativeFontInfoOk; }; +#define M_FONTDATA ((wxFontRefData*)m_refData) + // ============================================================================ // implementation // ============================================================================ @@ -330,27 +332,33 @@ protected: void wxFontRefData::Init(int pointSize, const wxSize& pixelSize, bool sizeUsingPixels, - int family, - int style, - int weight, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, bool underlined, const wxString& faceName, wxFontEncoding encoding) { - m_style = style; - m_pointSize = pointSize == -1 ? wxNORMAL_FONT->GetPointSize() : pointSize; - m_pixelSize = pixelSize; + m_hFont = NULL; + m_sizeUsingPixels = sizeUsingPixels; - m_family = family; - m_style = style; - m_weight = weight; - m_underlined = underlined; - m_faceName = faceName; - m_encoding = encoding; + if ( m_sizeUsingPixels ) + SetPixelSize(pixelSize); + else + SetPointSize(pointSize); - m_hFont = 0; + SetStyle(style); + SetWeight(weight); + SetUnderlined(underlined); - m_nativeFontInfoOk = false; + // 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) @@ -359,13 +367,10 @@ void wxFontRefData::Init(const wxNativeFontInfo& info, WXHFONT hFont) // use the exact font created in the underlying system // (for example where we can't guarantee conversion from HFONT // to LOGFONT back to HFONT) - m_hFont = hFont; - - m_nativeFontInfoOk = true; + m_hFont = (HFONT)hFont; m_nativeFontInfo = info; - // This is the best we can do since we don't have the - // correct information at this point. - m_family = wxSWISS; + + // TODO: m_sizeUsingPixels? } wxFontRefData::~wxFontRefData() @@ -373,24 +378,15 @@ wxFontRefData::~wxFontRefData() Free(); } -bool wxFontRefData::Alloc(wxFont *font) +bool wxFontRefData::Alloc() { - if ( !m_nativeFontInfoOk ) - { - wxFillLogFont(&m_nativeFontInfo.lf, font); - m_nativeFontInfoOk = true; - } - - HFONT hfont = ::CreateFontIndirect(&m_nativeFontInfo.lf); - if ( !hfont ) + m_hFont = ::CreateFontIndirect(&m_nativeFontInfo.lf); + if ( !m_hFont ) { wxLogLastError(wxT("CreateFont")); - return false; } - m_hFont = (WXHFONT)hfont; - return true; } @@ -398,7 +394,7 @@ void wxFontRefData::Free() { if ( m_hFont ) { - if ( !::DeleteObject((HFONT) m_hFont) ) + if ( !::DeleteObject(m_hFont) ) { wxLogLastError(wxT("DeleteObject(font)")); } @@ -414,6 +410,18 @@ void wxFontRefData::Free() void wxNativeFontInfo::Init() { wxZeroMemory(lf); + + // we get better font quality if we use PROOF_QUALITY instead of + // DEFAULT_QUALITY but some fonts (e.g. "Terminal 6pt") are not available + // then so we allow to set a global option to choose between quality and + // wider font selection +#ifdef __WXWINCE__ + lf.lfQuality = CLEARTYPE_QUALITY; +#else + lf.lfQuality = wxSystemOptions::GetOptionInt("msw.font.no-proof-quality") + ? DEFAULT_QUALITY + : PROOF_QUALITY; +#endif } int wxNativeFontInfo::GetPointSize() const @@ -422,13 +430,14 @@ int wxNativeFontInfo::GetPointSize() const // for printing! const int ppInch = ::GetDeviceCaps(ScreenHDC(), LOGPIXELSY); - return (int) (((72.0*(double)abs(lf.lfHeight)) / (double) ppInch) + 0.5); + // BC++ 2007 doesn't provide abs(long) overload, hence the cast + return (int) (((72.0*abs((int)lf.lfHeight)) / (double) ppInch) + 0.5); } wxSize wxNativeFontInfo::GetPixelSize() const { wxSize ret; - ret.SetHeight(lf.lfHeight); + ret.SetHeight(abs((int)lf.lfHeight)); ret.SetWidth(lf.lfWidth); return ret; } @@ -466,14 +475,14 @@ 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; @@ -489,6 +498,11 @@ 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; @@ -510,17 +524,25 @@ void wxNativeFontInfo::SetPointSize(int pointsize) void wxNativeFontInfo::SetPixelSize(const wxSize& pixelSize) { - 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(); } - void wxNativeFontInfo::SetStyle(wxFontStyle style) { switch ( style ) { default: - wxFAIL_MSG( _T("unknown font style") ); + wxFAIL_MSG( "unknown font style" ); // fall through case wxFONTSTYLE_NORMAL: @@ -539,7 +561,7 @@ void wxNativeFontInfo::SetWeight(wxFontWeight weight) switch ( weight ) { default: - wxFAIL_MSG( _T("unknown font weight") ); + wxFAIL_MSG( "unknown font weight" ); // fall through case wxFONTWEIGHT_NORMAL: @@ -561,64 +583,52 @@ void wxNativeFontInfo::SetUnderlined(bool underlined) lf.lfUnderline = underlined; } -void wxNativeFontInfo::SetFaceName(const wxString& facename) +bool wxNativeFontInfo::SetFaceName(const wxString& facename) { - wxStrncpy(lf.lfFaceName, facename, WXSIZEOF(lf.lfFaceName)); + wxStrlcpy(lf.lfFaceName, facename.c_str(), WXSIZEOF(lf.lfFaceName)); + return true; } void wxNativeFontInfo::SetFamily(wxFontFamily family) { - BYTE ff_family; - wxString facename; + BYTE ff_family = FF_DONTCARE; switch ( family ) { - case wxSCRIPT: + case wxFONTFAMILY_SCRIPT: ff_family = FF_SCRIPT; - facename = _T("Script"); break; - case wxDECORATIVE: + case wxFONTFAMILY_DECORATIVE: ff_family = FF_DECORATIVE; - facename = _T("Old English Text MT"); break; - case wxROMAN: + case wxFONTFAMILY_ROMAN: ff_family = FF_ROMAN; - facename = _T("Times New Roman"); break; - case wxTELETYPE: - case wxMODERN: + case wxFONTFAMILY_TELETYPE: + case wxFONTFAMILY_MODERN: ff_family = FF_MODERN; - facename = _T("Courier New"); break; - case wxSWISS: + case wxFONTFAMILY_SWISS: + case wxFONTFAMILY_DEFAULT: ff_family = FF_SWISS; - facename = _T("Arial"); 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) == wxWINDOWS_NT && verMaj >= 5) - facename = _T("MS Shell Dlg 2"); - else - facename = _T("MS Shell Dlg"); - } + 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) @@ -652,11 +662,11 @@ 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(); @@ -724,10 +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; } @@ -736,7 +747,7 @@ 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, @@ -760,8 +771,11 @@ wxString wxNativeFontInfo::ToString() const // wxFont // ---------------------------------------------------------------------------- -void wxFont::Init() +wxFont::wxFont(const wxString& fontdesc) { + wxNativeFontInfo info; + if ( info.FromString(fontdesc) ) + (void)Create(info); } bool wxFont::Create(const wxNativeFontInfo& info, WXHFONT hFont) @@ -770,27 +784,15 @@ bool wxFont::Create(const wxNativeFontInfo& info, WXHFONT hFont) m_refData = new wxFontRefData(info, hFont); - RealizeResource(); - - return true; + return RealizeResource(); } -wxFont::wxFont(const wxString& fontdesc) -{ - wxNativeFontInfo info; - if ( info.FromString(fontdesc) ) - (void)Create(info); -} - -/* Constructor for a font. Note that the real construction is done - * in wxDC::SetFont, when information is available about scaling etc. - */ bool wxFont::DoCreate(int pointSize, const wxSize& pixelSize, bool sizeUsingPixels, - int family, - int style, - int weight, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, bool underlined, const wxString& faceName, wxFontEncoding encoding) @@ -808,9 +810,7 @@ bool wxFont::DoCreate(int pointSize, family, style, weight, underlined, faceName, encoding); - RealizeResource(); - - return true; + return RealizeResource(); } wxFont::~wxFont() @@ -821,28 +821,32 @@ wxFont::~wxFont() // real implementation // ---------------------------------------------------------------------------- -bool wxFont::RealizeResource() +wxGDIRefData *wxFont::CreateGDIRefData() const { - if ( GetResourceHandle() ) - { - // VZ: the old code returned false in this case, but it doesn't seem - // to make sense because the font _was_ created - return true; - } + return new wxFontRefData(); +} - return M_FONTDATA->Alloc(this); +wxGDIRefData *wxFont::CloneGDIRefData(const wxGDIRefData *data) const +{ + return new wxFontRefData(*static_cast(data)); +} + +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); + // it returns NULL only if there is a failure in wxFontRefData::Alloc()... + return GetHFONT() != NULL; } bool wxFont::FreeResource(bool WXUNUSED(force)) { - if ( GetResourceHandle() ) - { - M_FONTDATA->Free(); + if ( !M_FONTDATA ) + return false; - return true; - } + M_FONTDATA->Free(); - return false; + return true; } WXHANDLE wxFont::GetResourceHandle() const @@ -852,27 +856,14 @@ WXHANDLE wxFont::GetResourceHandle() const WXHFONT wxFont::GetHFONT() const { + // NOTE: wxFontRefData::GetHFONT() will automatically call + // wxFontRefData::Alloc() if necessary return M_FONTDATA ? M_FONTDATA->GetHFONT() : 0; } bool wxFont::IsFree() const { - return M_FONTDATA && (M_FONTDATA->GetHFONT() == 0); -} - -void wxFont::Unshare() -{ - // Don't change shared data - if ( !m_refData ) - { - m_refData = new wxFontRefData(); - } - else - { - wxFontRefData* ref = new wxFontRefData(*M_FONTDATA); - UnRef(); - m_refData = ref; - } + return M_FONTDATA && !M_FONTDATA->HasHFONT(); } // ---------------------------------------------------------------------------- @@ -881,85 +872,76 @@ void wxFont::Unshare() void wxFont::SetPointSize(int pointSize) { - Unshare(); + AllocExclusive(); + M_FONTDATA->Free(); M_FONTDATA->SetPointSize(pointSize); - - RealizeResource(); } void wxFont::SetPixelSize(const wxSize& pixelSize) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetPixelSize(pixelSize); - - RealizeResource(); } -void wxFont::SetFamily(int family) +void wxFont::SetFamily(wxFontFamily family) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetFamily(family); - - RealizeResource(); } -void wxFont::SetStyle(int style) +void wxFont::SetStyle(wxFontStyle style) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetStyle(style); - - RealizeResource(); } -void wxFont::SetWeight(int weight) +void wxFont::SetWeight(wxFontWeight weight) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetWeight(weight); - - RealizeResource(); } -void wxFont::SetFaceName(const wxString& faceName) +bool wxFont::SetFaceName(const wxString& faceName) { - Unshare(); + AllocExclusive(); - M_FONTDATA->SetFaceName(faceName); + if ( !M_FONTDATA->SetFaceName(faceName) ) + return false; - RealizeResource(); + // NB: using win32's GetObject() API on M_FONTDATA->GetHFONT() + // to retrieve a LOGFONT and then compare lf.lfFaceName + // with given facename is not reliable at all: + // Windows copies the facename given to ::CreateFontIndirect() + // without any validity check. + // Thus we use wxFontBase::SetFaceName to check if facename + // is valid... + return wxFontBase::SetFaceName(faceName); } void wxFont::SetUnderlined(bool underlined) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetUnderlined(underlined); - - RealizeResource(); } void wxFont::SetEncoding(wxFontEncoding encoding) { - Unshare(); + AllocExclusive(); M_FONTDATA->SetEncoding(encoding); - - RealizeResource(); } void wxFont::DoSetNativeFontInfo(const wxNativeFontInfo& info) { - Unshare(); - - FreeResource(); - - *M_FONTDATA = wxFontRefData(info); + AllocExclusive(); - RealizeResource(); + M_FONTDATA->SetNativeFontInfo(info); } // ---------------------------------------------------------------------------- @@ -968,82 +950,87 @@ void wxFont::DoSetNativeFontInfo(const wxNativeFontInfo& info) int wxFont::GetPointSize() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), 0, wxT("invalid font") ); return M_FONTDATA->GetPointSize(); } wxSize wxFont::GetPixelSize() const { + wxCHECK_MSG( IsOk(), wxDefaultSize, wxT("invalid font") ); + return M_FONTDATA->GetPixelSize(); } bool wxFont::IsUsingSizeInPixels() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), 0, wxT("invalid font") ); return M_FONTDATA->IsUsingSizeInPixels(); } -int wxFont::GetFamily() const +wxFontFamily wxFont::DoGetFamily() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); - return M_FONTDATA->GetFamily(); } -int wxFont::GetStyle() const +wxFontStyle wxFont::GetStyle() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), wxFONTSTYLE_MAX, wxT("invalid font") ); return M_FONTDATA->GetStyle(); } -int wxFont::GetWeight() const +wxFontWeight wxFont::GetWeight() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), wxFONTWEIGHT_MAX, wxT("invalid font") ); return M_FONTDATA->GetWeight(); } bool wxFont::GetUnderlined() const { - wxCHECK_MSG( Ok(), false, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), false, wxT("invalid font") ); return M_FONTDATA->GetUnderlined(); } wxString wxFont::GetFaceName() const { - wxCHECK_MSG( Ok(), wxEmptyString, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), wxEmptyString, wxT("invalid font") ); return M_FONTDATA->GetFaceName(); } wxFontEncoding wxFont::GetEncoding() const { - wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), wxFONTENCODING_DEFAULT, wxT("invalid font") ); return M_FONTDATA->GetEncoding(); } const wxNativeFontInfo *wxFont::GetNativeFontInfo() const { - return M_FONTDATA->HasNativeFontInfo() ? &(M_FONTDATA->GetNativeFontInfo()) - : NULL; + return IsOk() ? &(M_FONTDATA->GetNativeFontInfo()) : NULL; } bool wxFont::IsFixedWidth() const { - 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); + wxCHECK_MSG( IsOk(), false, wxT("invalid font") ); + + // 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); }