X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2bda0e173844e8e0f8acf4e8ad8b5c26e5c6fe5d..491b5be8305968871bc289453ed088a70c3de044:/src/msw/font.cpp?ds=sidebyside diff --git a/src/msw/font.cpp b/src/msw/font.cpp index 727048a9b8..1800a135c0 100644 --- a/src/msw/font.cpp +++ b/src/msw/font.cpp @@ -6,357 +6,654 @@ // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + #ifdef __GNUG__ -#pragma implementation "font.h" + #pragma implementation "font.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP -#include -#include "wx/setup.h" -#include "wx/list.h" -#include "wx/utils.h" -#include "wx/app.h" -#include "wx/font.h" -#endif + #include "wx/setup.h" + #include "wx/list.h" + #include "wx/utils.h" + #include "wx/app.h" + #include "wx/font.h" + #include "wx/log.h" +#endif // WX_PRECOMP + +#include "wx/fontutil.h" +#include "wx/tokenzr.h" #include "wx/msw/private.h" -#include "assert.h" +#include "wx/tokenzr.h" -#if !USE_SHARED_LIBRARIES IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject) -#if USE_PORTABLE_FONTS_IN_MSW -IMPLEMENT_DYNAMIC_CLASS(wxFontNameDirectory, wxObject) -#endif +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- -#endif +// the default font size in points +static const int wxDEFAULT_FONT_SIZE = 12; + +// ---------------------------------------------------------------------------- +// wxFontRefData - the internal description of the font +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxFontRefData: public wxGDIRefData +{ +friend class WXDLLEXPORT wxFont; + +public: + wxFontRefData() + { + Init(wxDEFAULT_FONT_SIZE, wxDEFAULT, wxNORMAL, wxNORMAL, FALSE, + "", wxFONTENCODING_DEFAULT); + } + + wxFontRefData(const wxFontRefData& data) + { + Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight, + data.m_underlined, data.m_faceName, data.m_encoding); + + m_fontId = data.m_fontId; + } + + wxFontRefData(int size, + int family, + int style, + int weight, + bool underlined, + const wxString& faceName, + wxFontEncoding encoding) + { + Init(size, family, style, weight, underlined, faceName, encoding); + } + + wxFontRefData(const wxNativeFontInfo& info, WXHFONT hFont = 0) + { + Init(info, hFont); + } -wxFontRefData::wxFontRefData(void) + virtual ~wxFontRefData(); + +protected: + // common part of all ctors + void Init(int size, + int family, + int style, + int weight, + bool underlined, + const wxString& faceName, + wxFontEncoding encoding); + + void Init(const wxNativeFontInfo& info, WXHFONT hFont = 0); + + // If TRUE, the pointer to the actual font is temporary and SHOULD NOT BE + // DELETED by destructor + bool m_temporary; + + int m_fontId; + + // font characterstics + int m_pointSize; + int m_family; + int m_style; + int m_weight; + bool m_underlined; + wxString m_faceName; + wxFontEncoding m_encoding; + + // Windows font handle + WXHFONT m_hFont; + + // Native font info + wxNativeFontInfo m_nativeFontInfo; + bool m_nativeFontInfoOk; +}; + +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// wxFontRefData +// ---------------------------------------------------------------------------- + +void wxFontRefData::Init(int pointSize, + int family, + int style, + int weight, + bool underlined, + const wxString& faceName, + wxFontEncoding encoding) { - m_style = 0; - m_temporary = FALSE; - m_pointSize = 0; - m_family = 0; - m_fontId = 0; - m_style = 0; - m_weight = 0; - m_underlined = 0; - m_faceName = ""; - m_hFont = 0; + m_style = style; + m_pointSize = pointSize; + m_family = family; + m_style = style; + m_weight = weight; + m_underlined = underlined; + m_faceName = faceName; + m_encoding = encoding; + + m_fontId = 0; + m_temporary = FALSE; + + m_hFont = 0; + + m_nativeFontInfoOk = FALSE; } -wxFontRefData::~wxFontRefData(void) +void wxFontRefData::Init(const wxNativeFontInfo& info, WXHFONT hFont) { - if ( m_hFont ) - ::DeleteObject((HFONT) m_hFont); + // extract family from pitch-and-family + int lfFamily = info.lf.lfPitchAndFamily; + if ( lfFamily & FIXED_PITCH ) + lfFamily -= FIXED_PITCH; + if ( lfFamily & VARIABLE_PITCH ) + lfFamily -= VARIABLE_PITCH; + + switch ( lfFamily ) + { + case FF_ROMAN: + m_family = wxROMAN; + break; + + case FF_SWISS: + m_family = wxSWISS; + break; + + case FF_SCRIPT: + m_family = wxSCRIPT; + break; + + case FF_MODERN: + m_family = wxMODERN; + break; + + case FF_DECORATIVE: + m_family = wxDECORATIVE; + break; + + default: + m_family = wxSWISS; + } + + // weight and style + switch ( info.lf.lfWeight ) + { + case FW_LIGHT: + m_weight = wxLIGHT; + break; + + default: + case FW_NORMAL: + m_weight = wxNORMAL; + break; + + case FW_BOLD: + m_weight = wxBOLD; + break; + } + + m_style = info.lf.lfItalic ? wxITALIC : wxNORMAL; + + m_underlined = info.lf.lfUnderline != 0; + + m_faceName = info.lf.lfFaceName; + + int height = abs(info.lf.lfHeight); + + // remember that 1pt = 1/72inch + const int ppInch = ::GetDeviceCaps(ScreenHDC(), LOGPIXELSY); + m_pointSize = (int) (((72.0*((double)height))/(double) ppInch) + 0.5); + + m_encoding = wxGetFontEncFromCharSet(info.lf.lfCharSet); + + m_fontId = 0; + m_temporary = FALSE; + + // hFont may be zero, or it be passed in case we really want to + // 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_nativeFontInfo = info; } -wxFont::wxFont(void) +wxFontRefData::~wxFontRefData() { - if ( wxTheFontList ) - wxTheFontList->Append(this); + if ( m_hFont ) + { + if ( !::DeleteObject((HFONT) m_hFont) ) + { + wxLogLastError(wxT("DeleteObject(font)")); + } + } } -/* Constructor for a font. Note that the real construction is done - * in wxDC::SetFont, when information is available about scaling etc. - */ -wxFont::wxFont(int PointSize, int Family, int Style, int Weight, bool Underlined, const wxString& Face) + +// ---------------------------------------------------------------------------- +// wxNativeFontInfo +// ---------------------------------------------------------------------------- + +bool wxNativeFontInfo::FromString(const wxString& s) { - Create(PointSize, Family, Style, Weight, Underlined, Face); + long l; + + wxStringTokenizer tokenizer(s, _T(";")); + + wxString token = tokenizer.GetNextToken(); + // + // Ignore the version for now + // + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfHeight = l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfWidth = l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfEscapement = l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfOrientation = l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfWeight = l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfItalic = (BYTE)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfUnderline = (BYTE)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfStrikeOut = (BYTE)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfCharSet = (BYTE)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfOutPrecision = (BYTE)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfClipPrecision = (BYTE)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfQuality = (BYTE)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return FALSE; + lf.lfPitchAndFamily = (BYTE)l; + + token = tokenizer.GetNextToken(); + if(!token) + return FALSE; + wxStrcpy(lf.lfFaceName, token.c_str()); + return TRUE; +} + +wxString wxNativeFontInfo::ToString() const +{ + wxString s; + + s.Printf(_T("%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%s"), + 0, // version, in case we want to change the format later + lf.lfHeight, + lf.lfWidth, + lf.lfEscapement, + lf.lfOrientation, + lf.lfWeight, + lf.lfItalic, + lf.lfUnderline, + lf.lfStrikeOut, + lf.lfCharSet, + lf.lfOutPrecision, + lf.lfClipPrecision, + lf.lfQuality, + lf.lfPitchAndFamily, + lf.lfFaceName); + + return s; +} + +// ---------------------------------------------------------------------------- +// wxFont +// ---------------------------------------------------------------------------- + +void wxFont::Init() +{ if ( wxTheFontList ) wxTheFontList->Append(this); } -bool wxFont::Create(int PointSize, int Family, int Style, int Weight, bool Underlined, const wxString& Face) +bool wxFont::Create(const wxNativeFontInfo& info, WXHFONT hFont) { - UnRef(); - m_refData = new wxFontRefData; + UnRef(); - M_FONTDATA->m_family = Family; - M_FONTDATA->m_style = Style; - M_FONTDATA->m_weight = Weight; - M_FONTDATA->m_pointSize = PointSize; - M_FONTDATA->m_underlined = Underlined; - M_FONTDATA->m_faceName = Face; - M_FONTDATA->m_temporary = FALSE; - M_FONTDATA->m_hFont = 0; + m_refData = new wxFontRefData(info, hFont); - RealizeResource(); + RealizeResource(); - return TRUE; + return TRUE; } -wxFont::~wxFont() +wxFont::wxFont(const wxString& fontdesc) { - if (wxTheFontList) - wxTheFontList->DeleteObject(this); + wxNativeFontInfo info; + if ( info.FromString(fontdesc) ) + (void)Create(info); } -bool wxFont::RealizeResource(void) +/* Constructor for a font. Note that the real construction is done + * in wxDC::SetFont, when information is available about scaling etc. + */ +bool wxFont::Create(int pointSize, + int family, + int style, + int weight, + bool underlined, + const wxString& faceName, + wxFontEncoding encoding) { - if (M_FONTDATA && !M_FONTDATA->m_hFont) - { - BYTE ff_italic; - int ff_weight = 0; - int ff_family = 0; - wxString ff_face(""); + UnRef(); - switch (M_FONTDATA->m_family) - { - case wxSCRIPT: ff_family = FF_SCRIPT ; - ff_face = "Script" ; - break ; - case wxDECORATIVE: ff_family = FF_DECORATIVE; - break; - case wxROMAN: ff_family = FF_ROMAN; - ff_face = "Times New Roman" ; - break; - case wxTELETYPE: - case wxMODERN: ff_family = FF_MODERN; - ff_face = "Courier New" ; - break; - case wxSWISS: ff_family = FF_SWISS; - ff_face = "Arial"; - break; - case wxDEFAULT: - default: ff_family = FF_SWISS; - ff_face = "Arial" ; - } + // 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 ) + pointSize = wxDEFAULT_FONT_SIZE; - if (M_FONTDATA->m_style == wxITALIC || M_FONTDATA->m_style == wxSLANT) - ff_italic = 1; - else - ff_italic = 0; - - if (M_FONTDATA->m_weight == wxNORMAL) - ff_weight = FW_NORMAL; - else if (M_FONTDATA->m_weight == wxLIGHT) - ff_weight = FW_LIGHT; - else if (M_FONTDATA->m_weight == wxBOLD) - ff_weight = FW_BOLD; - -#if defined(__X__) || (defined(__WINDOWS__) && USE_PORTABLE_FONTS_IN_MSW) - ff_face = wxTheFontNameDirectory.GetScreenName(M_FONTDATA->m_family, M_FONTDATA->m_weight, M_FONTDATA->m_style); -#else - ff_face = M_FONTDATA->m_faceName; - if ( ff_face.IsNull() ) - ff_face = ""; -#endif + m_refData = new wxFontRefData(pointSize, family, style, weight, + underlined, faceName, encoding); + + RealizeResource(); + + return TRUE; +} + +wxFont::~wxFont() +{ + if ( wxTheFontList ) + wxTheFontList->DeleteObject(this); +} -/* Always calculate fonts using the screen DC (is this the best strategy?) - * There may be confusion if a font is selected into a printer - * DC (say), because the height will be calculated very differently. - // What sort of display is it? - int technology = ::GetDeviceCaps(dc, TECHNOLOGY); +// ---------------------------------------------------------------------------- +// real implementation +// ---------------------------------------------------------------------------- - int nHeight; - - if (technology != DT_RASDISPLAY && technology != DT_RASPRINTER) +bool wxFont::RealizeResource() +{ + if ( GetResourceHandle() ) { - // Have to get screen DC Caps, because a metafile will return 0. - HDC dc2 = ::GetDC(NULL); - nHeight = M_FONTDATA->m_pointSize*GetDeviceCaps(dc2, LOGPIXELSY)/72; - ::ReleaseDC(NULL, dc2); + // VZ: the old code returned FALSE in this case, but it doesn't seem + // to make sense because the font _was_ created + return TRUE; } - else + + if(!M_FONTDATA->m_nativeFontInfoOk) { - nHeight = M_FONTDATA->m_pointSize*GetDeviceCaps(dc, LOGPIXELSY)/72; + wxFillLogFont(&M_FONTDATA->m_nativeFontInfo.lf, this); + M_FONTDATA->m_nativeFontInfoOk = TRUE; } -*/ - // Have to get screen DC Caps, because a metafile will return 0. - HDC dc2 = ::GetDC(NULL); - int ppInch = ::GetDeviceCaps(dc2, LOGPIXELSY); - ::ReleaseDC(NULL, dc2); - - // New behaviour: apparently ppInch varies according to - // Large/Small Fonts setting in Windows. This messes - // up fonts. So, set ppInch to a constant 96 dpi. - ppInch = 96; - -#if FONT_SIZE_COMPATIBILITY - // Incorrect, but compatible with old wxWindows behaviour - int nHeight = (M_FONTDATA->m_pointSize*ppInch/72); -#else - // Correct for Windows compatibility - int nHeight = - (M_FONTDATA->m_pointSize*ppInch/72); -#endif - bool ff_underline = M_FONTDATA->m_underlined; + M_FONTDATA->m_hFont = (WXHFONT)::CreateFontIndirect(&M_FONTDATA->m_nativeFontInfo.lf); + M_FONTDATA->m_faceName = M_FONTDATA->m_nativeFontInfo.lf.lfFaceName; + if ( !M_FONTDATA->m_hFont ) + { + wxLogLastError(wxT("CreateFont")); - M_FONTDATA->m_hFont = (WXHFONT) CreateFont(nHeight, 0, 0, 0,ff_weight,ff_italic,(BYTE)ff_underline, - 0, ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, - PROOF_QUALITY, DEFAULT_PITCH | ff_family, (ff_face == "" ? NULL : (const char *)ff_face)); -#ifdef DEBUG_CREATE - if (m_hFont==NULL) wxError("Cannot create font","Internal Error") ; -#endif - return (M_FONTDATA->m_hFont != (WXHFONT) NULL); - } - return FALSE; -} + return FALSE; + } -bool wxFont::FreeResource(bool force) -{ - if (M_FONTDATA && M_FONTDATA->m_hFont) - { - ::DeleteObject((HFONT) M_FONTDATA->m_hFont); - M_FONTDATA->m_hFont = 0; return TRUE; - } - return FALSE; } -/* -bool wxFont::UseResource(void) +bool wxFont::FreeResource(bool WXUNUSED(force)) { - IncrementResourceUsage(); - return TRUE; + if ( GetResourceHandle() ) + { + if ( !::DeleteObject((HFONT) M_FONTDATA->m_hFont) ) + { + wxLogLastError(wxT("DeleteObject(font)")); + } + + M_FONTDATA->m_hFont = 0; + + return TRUE; + } + return FALSE; } -bool wxFont::ReleaseResource(void) +WXHANDLE wxFont::GetResourceHandle() { - DecrementResourceUsage(); - return TRUE; + return GetHFONT(); } -*/ - -WXHANDLE wxFont::GetResourceHandle(void) + +WXHFONT wxFont::GetHFONT() const { - if ( !M_FONTDATA ) - return 0; - else - return (WXHANDLE)M_FONTDATA->m_hFont ; + if ( !M_FONTDATA ) + return 0; + else + return (WXHANDLE)M_FONTDATA->m_hFont; } -bool wxFont::IsFree(void) +bool wxFont::IsFree() const { - return (M_FONTDATA && (M_FONTDATA->m_hFont == 0)); + return (M_FONTDATA && (M_FONTDATA->m_hFont == 0)); } -void wxFont::SetPointSize(const int pointSize) +void wxFont::Unshare() { + // Don't change shared data if ( !m_refData ) - m_refData = new wxFontRefData; + { + m_refData = new wxFontRefData(); + } + else + { + wxFontRefData* ref = new wxFontRefData(*M_FONTDATA); + UnRef(); + m_refData = ref; + } +} + +// ---------------------------------------------------------------------------- +// change font attribute: we recreate font when doing it +// ---------------------------------------------------------------------------- + +void wxFont::SetPointSize(int pointSize) +{ + Unshare(); + M_FONTDATA->m_pointSize = pointSize; + M_FONTDATA->m_nativeFontInfoOk = FALSE; + + RealizeResource(); } -void wxFont::SetFamily(const int family) +void wxFont::SetFamily(int family) { - if ( !m_refData ) - m_refData = new wxFontRefData; + Unshare(); + M_FONTDATA->m_family = family; + M_FONTDATA->m_nativeFontInfoOk = FALSE; + + RealizeResource(); } -void wxFont::SetStyle(const int style) +void wxFont::SetStyle(int style) { - if ( !m_refData ) - m_refData = new wxFontRefData; + Unshare(); + M_FONTDATA->m_style = style; + M_FONTDATA->m_nativeFontInfoOk = FALSE; + + RealizeResource(); } -void wxFont::SetWeight(const int weight) +void wxFont::SetWeight(int weight) { - if ( !m_refData ) - m_refData = new wxFontRefData; + Unshare(); + M_FONTDATA->m_weight = weight; + M_FONTDATA->m_nativeFontInfoOk = FALSE; + + RealizeResource(); } void wxFont::SetFaceName(const wxString& faceName) { - if ( !m_refData ) - m_refData = new wxFontRefData; + Unshare(); + M_FONTDATA->m_faceName = faceName; + M_FONTDATA->m_nativeFontInfoOk = FALSE; + + RealizeResource(); } -void wxFont::SetUnderlined(const bool underlined) +void wxFont::SetUnderlined(bool underlined) { - if ( !m_refData ) - m_refData = new wxFontRefData; + Unshare(); + M_FONTDATA->m_underlined = underlined; + M_FONTDATA->m_nativeFontInfoOk = FALSE; + + RealizeResource(); +} + +void wxFont::SetEncoding(wxFontEncoding encoding) +{ + Unshare(); + + M_FONTDATA->m_encoding = encoding; + M_FONTDATA->m_nativeFontInfoOk = FALSE; + + RealizeResource(); } -wxString wxFont::GetFamilyString(void) const -{ - wxString fam(""); - switch (GetFamily()) - { - case wxDECORATIVE: - fam = "wxDECORATIVE"; - break; - case wxROMAN: - fam = "wxROMAN"; - break; - case wxSCRIPT: - fam = "wxSCRIPT"; - break; - case wxSWISS: - fam = "wxSWISS"; - break; - case wxMODERN: - fam = "wxMODERN"; - break; - case wxTELETYPE: - fam = "wxTELETYPE"; - break; - default: - fam = "wxDEFAULT"; - break; - } - return fam; -} - -/* New font system */ -wxString wxFont::GetFaceName(void) const -{ - wxString str(""); - if (M_FONTDATA) - str = M_FONTDATA->m_faceName ; - return str; -} - -wxString wxFont::GetStyleString(void) const -{ - wxString styl(""); - switch (GetStyle()) - { - case wxITALIC: - styl = "wxITALIC"; - break; - case wxSLANT: - styl = "wxSLANT"; - break; - default: - styl = "wxNORMAL"; - break; - } - return styl; -} - -wxString wxFont::GetWeightString(void) const -{ - wxString w(""); - switch (GetWeight()) - { - case wxBOLD: - w = "wxBOLD"; - break; - case wxLIGHT: - w = "wxLIGHT"; - break; - default: - w = "wxNORMAL"; - break; - } - return w; +void wxFont::SetNativeFontInfo(const wxNativeFontInfo& info) +{ + Unshare(); + + FreeResource(); + + M_FONTDATA->Init(info); + + RealizeResource(); +} + +// ---------------------------------------------------------------------------- +// accessors +// ---------------------------------------------------------------------------- + +int wxFont::GetPointSize() const +{ + wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + + return M_FONTDATA->m_pointSize; +} + +int wxFont::GetFamily() const +{ + wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + + return M_FONTDATA->m_family; +} + +int wxFont::GetFontId() const +{ + wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + + return M_FONTDATA->m_fontId; +} + +int wxFont::GetStyle() const +{ + wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + + return M_FONTDATA->m_style; +} + +int wxFont::GetWeight() const +{ + wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + + return M_FONTDATA->m_weight; +} + +bool wxFont::GetUnderlined() const +{ + wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") ); + + return M_FONTDATA->m_underlined; +} + +wxString wxFont::GetFaceName() const +{ + wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") ); + + return M_FONTDATA->m_faceName; +} + +wxFontEncoding wxFont::GetEncoding() const +{ + wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") ); + + return M_FONTDATA->m_encoding; +} + +wxNativeFontInfo *wxFont::GetNativeFontInfo() const +{ + if( M_FONTDATA->m_nativeFontInfoOk ) + return new wxNativeFontInfo(M_FONTDATA->m_nativeFontInfo); + + return 0; }