X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bff67a6a811bd0f8ec2315242ad2eb0324d9939d..cbbb1f548962b30c43849e29fd64eceb4d8720e8:/src/msw/font.cpp diff --git a/src/msw/font.cpp b/src/msw/font.cpp index 7a55510e19..d995db91ac 100644 --- a/src/msw/font.cpp +++ b/src/msw/font.cpp @@ -5,7 +5,7 @@ // Modified by: // Created: 01/02/97 // RCS-ID: $Id$ -// Copyright: (c) wxWindows team +// Copyright: (c) wxWidgets team // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "font.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -28,28 +24,34 @@ #pragma hdrstop #endif +#include "wx/font.h" + #ifndef WX_PRECOMP - #include "wx/setup.h" #include "wx/list.h" #include "wx/utils.h" #include "wx/app.h" - #include "wx/font.h" #include "wx/log.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" +#ifndef __WXWINCE__ + #include "wx/sysopt.h" +#endif -IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject) +#include "wx/scopeguard.h" +#include "wx/tokenzr.h" // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- +// the mask used to extract the pitch from LOGFONT::lfPitchAndFamily field +static const int PITCH_MASK = FIXED_PITCH | VARIABLE_PITCH; + // ---------------------------------------------------------------------------- // wxFontRefData - the internal description of the font // ---------------------------------------------------------------------------- @@ -60,19 +62,23 @@ public: // constructors wxFontRefData() { - Init(-1, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL, - FALSE, _T(""), wxFONTENCODING_DEFAULT); + Init(-1, wxSize(0,0), false, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, + wxFONTWEIGHT_NORMAL, false, wxEmptyString, + wxFONTENCODING_DEFAULT); } wxFontRefData(int size, - int family, - int style, - int weight, + const wxSize& pixelSize, + bool sizeUsingPixels, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, bool underlined, const wxString& faceName, wxFontEncoding encoding) { - Init(size, family, style, weight, underlined, faceName, encoding); + Init(size, pixelSize, sizeUsingPixels, family, style, weight, + underlined, faceName, encoding); } wxFontRefData(const wxNativeFontInfo& info, WXHFONT hFont = 0) @@ -80,164 +86,241 @@ public: Init(info, hFont); } - wxFontRefData(const wxFontRefData& data) + wxFontRefData(const wxFontRefData& data) : wxGDIRefData() { - if ( data.m_nativeFontInfoOk ) - { - Init(data.m_nativeFontInfo); - } - else - { - Init(data.m_pointSize, 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_nativeFontInfo.GetPixelSize(); } - int GetFamily() const + bool IsUsingSizeInPixels() const { - return m_family; + return m_sizeUsingPixels; } - int GetStyle() const + wxFontFamily GetFamily() const { - return m_nativeFontInfoOk ? m_nativeFontInfo.GetStyle() - : m_style; + return m_nativeFontInfo.GetFamily(); } - int GetWeight() const + wxFontStyle GetStyle() const { - return m_nativeFontInfoOk ? m_nativeFontInfo.GetWeight() - : m_weight; + return m_nativeFontInfo.GetStyle(); + } + + wxFontWeight GetWeight() const + { + 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; + } + + bool HasHFONT() const + { + return m_hFont != 0; + } - // ... and setters + // ... 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; + Free(); + + m_nativeFontInfo.SetPointSize(pointSize); + m_sizeUsingPixels = false; } - void SetFamily(int family) + void SetPixelSize(const wxSize& pixelSize) { - m_family = family; + 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 SetStyle(int style) + void SetFamily(wxFontFamily family) { - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetStyle((wxFontStyle)style); - else - m_style = style; + Free(); + + m_nativeFontInfo.SetFamily(family); } - void SetWeight(int weight) + void SetStyle(wxFontStyle style) { - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetWeight((wxFontWeight)weight); - else - m_weight = weight; + Free(); + + m_nativeFontInfo.SetStyle(style); } - void SetFaceName(const wxString& faceName) + void SetWeight(wxFontWeight weight) { - if ( m_nativeFontInfoOk ) - m_nativeFontInfo.SetFaceName(faceName); - else - m_faceName = faceName; + Free(); + + m_nativeFontInfo.SetWeight(weight); + } + + bool SetFaceName(const wxString& 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, - int family, - int style, - int weight, + const wxSize& pixelSize, + bool sizeUsingPixels, + 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; - 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 ); + + 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 - WXHFONT m_hFont; + // 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 // ============================================================================ @@ -247,73 +330,47 @@ protected: // ---------------------------------------------------------------------------- void wxFontRefData::Init(int pointSize, - int family, - int style, - int weight, + const wxSize& pixelSize, + bool sizeUsingPixels, + 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_family = family; - m_style = style; - m_weight = weight; - m_underlined = underlined; - m_faceName = faceName; - m_encoding = encoding; + m_hFont = NULL; + + m_sizeUsingPixels = sizeUsingPixels; + if ( m_sizeUsingPixels ) + SetPixelSize(pixelSize); + else + SetPointSize(pointSize); + + SetStyle(style); + SetWeight(weight); + SetUnderlined(underlined); - m_hFont = 0; + // set the family/facename + SetFamily(family); + if ( !faceName.empty() ) + SetFaceName(faceName); - m_nativeFontInfoOk = FALSE; + // 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) { - // we don't really need the family, what for? -#if 0 - // 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; - } -#endif // 0 - // 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_hFont = (HFONT)hFont; m_nativeFontInfo = info; + + // TODO: m_sizeUsingPixels? } wxFontRefData::~wxFontRefData() @@ -321,32 +378,23 @@ 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; + return false; } - m_hFont = (WXHFONT)hfont; - - return TRUE; + return true; } void wxFontRefData::Free() { if ( m_hFont ) { - if ( !::DeleteObject((HFONT) m_hFont) ) + if ( !::DeleteObject(m_hFont) ) { wxLogLastError(wxT("DeleteObject(font)")); } @@ -362,13 +410,36 @@ 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 { + // FIXME: using the screen here results in incorrect font size calculation + // 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(abs((int)lf.lfHeight)); + ret.SetWidth(lf.lfWidth); + return ret; } wxFontStyle wxNativeFontInfo::GetStyle() const @@ -397,6 +468,46 @@ wxString wxNativeFontInfo::GetFaceName() const return lf.lfFaceName; } +wxFontFamily wxNativeFontInfo::GetFamily() const +{ + wxFontFamily family; + + // extract family from pitch-and-family + switch ( lf.lfPitchAndFamily & ~PITCH_MASK ) + { + case 0: + family = wxFONTFAMILY_UNKNOWN; + break; + + case FF_ROMAN: + family = wxFONTFAMILY_ROMAN; + break; + + case FF_SWISS: + family = wxFONTFAMILY_SWISS; + break; + + case FF_SCRIPT: + family = wxFONTFAMILY_SCRIPT; + break; + + case FF_MODERN: + family = wxFONTFAMILY_MODERN; + break; + + case FF_DECORATIVE: + family = wxFONTFAMILY_DECORATIVE; + break; + + default: + wxFAIL_MSG( "unknown LOGFONT::lfFamily value" ); + family = wxFONTFAMILY_UNKNOWN; + // just to avoid a warning + } + + return family; +} + wxFontEncoding wxNativeFontInfo::GetEncoding() const { return wxGetFontEncFromCharSet(lf.lfCharSet); @@ -404,20 +515,38 @@ wxFontEncoding wxNativeFontInfo::GetEncoding() const void wxNativeFontInfo::SetPointSize(int pointsize) { + // FIXME: using the screen here results in incorrect font size calculation + // for printing! const int ppInch = ::GetDeviceCaps(ScreenHDC(), LOGPIXELSY); lf.lfHeight = -(int)((pointsize*((double)ppInch)/72.0) + 0.5); } +void wxNativeFontInfo::SetPixelSize(const wxSize& pixelSize) +{ + // 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: + lf.lfItalic = FALSE; break; case wxFONTSTYLE_ITALIC: @@ -432,7 +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: @@ -454,9 +583,52 @@ void wxNativeFontInfo::SetUnderlined(bool underlined) lf.lfUnderline = underlined; } -void wxNativeFontInfo::SetFaceName(wxString facename) +bool wxNativeFontInfo::SetFaceName(const wxString& facename) { - wxStrncpy(lf.lfFaceName, facename, sizeof(lf.lfFaceName)); + wxStrlcpy(lf.lfFaceName, facename.c_str(), WXSIZEOF(lf.lfFaceName)); + return true; +} + +void wxNativeFontInfo::SetFamily(wxFontFamily family) +{ + BYTE ff_family = FF_DONTCARE; + + switch ( family ) + { + case wxFONTFAMILY_SCRIPT: + ff_family = FF_SCRIPT; + break; + + case wxFONTFAMILY_DECORATIVE: + ff_family = FF_DECORATIVE; + break; + + case wxFONTFAMILY_ROMAN: + ff_family = FF_ROMAN; + break; + + case wxFONTFAMILY_TELETYPE: + case wxFONTFAMILY_MODERN: + ff_family = FF_MODERN; + break; + + case wxFONTFAMILY_SWISS: + case wxFONTFAMILY_DEFAULT: + ff_family = FF_SWISS; + break; + + case wxFONTFAMILY_UNKNOWN: + wxFAIL_MSG( "invalid font family" ); + return; + } + + wxCHECK_RET( ff_family != FF_DONTCARE, "unknown wxFontFamily" ); + + lf.lfPitchAndFamily = (BYTE)(DEFAULT_PITCH) | ff_family; + + // 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) @@ -465,113 +637,117 @@ void wxNativeFontInfo::SetEncoding(wxFontEncoding encoding) if ( !wxGetNativeFontEncoding(encoding, &info) ) { #if wxUSE_FONTMAP - if ( !wxTheFontMapper->GetAltForEncoding(encoding, &info) ) -#endif // wxUSE_FONTMAP + if ( wxFontMapper::Get()->GetAltForEncoding(encoding, &info) ) { - // unsupported encoding, replace with the default - info.charset = ANSI_CHARSET; + if ( !info.facename.empty() ) + { + // if we have this encoding only in some particular facename, use + // the facename - it is better to show the correct characters in a + // wrong facename than unreadable text in a correct one + SetFaceName(info.facename); + } } - else if ( !info.facename.empty() ) + else +#endif // wxUSE_FONTMAP { - // if we have this encoding only in some particular facename, use - // the facename - it is better to show the correct characters in a - // wrong facename than unreadable text in a correct one - SetFaceName(info.facename); + // unsupported encoding, replace with the default + info.charset = DEFAULT_CHARSET; } } - lf.lfCharSet = info.charset; + lf.lfCharSet = (BYTE)info.charset; } 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') ) - return FALSE; + if ( token != wxS('0') ) + return false; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfHeight = l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfWidth = l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfEscapement = l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfOrientation = l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfWeight = l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfItalic = (BYTE)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfUnderline = (BYTE)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfStrikeOut = (BYTE)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfCharSet = (BYTE)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfOutPrecision = (BYTE)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfClipPrecision = (BYTE)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfQuality = (BYTE)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; lf.lfPitchAndFamily = (BYTE)l; - token = tokenizer.GetNextToken(); - if(!token) - return FALSE; - wxStrcpy(lf.lfFaceName, token.c_str()); + if ( !tokenizer.HasMoreTokens() ) + return false; + + // the face name may be empty + SetFaceName(tokenizer.GetNextToken()); - return TRUE; + 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"), + 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, @@ -595,8 +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) @@ -605,28 +784,18 @@ bool wxFont::Create(const wxNativeFontInfo& info, WXHFONT hFont) m_refData = new wxFontRefData(info, hFont); - RealizeResource(); - - return TRUE; -} - -wxFont::wxFont(const wxString& fontdesc) -{ - wxNativeFontInfo info; - if ( info.FromString(fontdesc) ) - (void)Create(info); + return RealizeResource(); } -/* 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) +bool wxFont::DoCreate(int pointSize, + const wxSize& pixelSize, + bool sizeUsingPixels, + wxFontFamily family, + wxFontStyle style, + wxFontWeight weight, + bool underlined, + const wxString& faceName, + wxFontEncoding encoding) { UnRef(); @@ -637,12 +806,11 @@ bool wxFont::Create(int pointSize, pointSize = wxNORMAL_FONT->GetPointSize(); } - m_refData = new wxFontRefData(pointSize, family, style, weight, + m_refData = new wxFontRefData(pointSize, pixelSize, sizeUsingPixels, + family, style, weight, underlined, faceName, encoding); - RealizeResource(); - - return TRUE; + return RealizeResource(); } wxFont::~wxFont() @@ -653,58 +821,49 @@ 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(); +} + +wxGDIRefData *wxFont::CloneGDIRefData(const wxGDIRefData *data) const +{ + return new wxFontRefData(*static_cast(data)); +} - return M_FONTDATA->Alloc(this); +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() +WXHANDLE wxFont::GetResourceHandle() const { - return GetHFONT(); + return (WXHANDLE)GetHFONT(); } 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(); } // ---------------------------------------------------------------------------- @@ -713,76 +872,76 @@ void wxFont::Unshare() void wxFont::SetPointSize(int pointSize) { - Unshare(); + AllocExclusive(); + M_FONTDATA->Free(); M_FONTDATA->SetPointSize(pointSize); +} + +void wxFont::SetPixelSize(const wxSize& pixelSize) +{ + AllocExclusive(); - RealizeResource(); + M_FONTDATA->SetPixelSize(pixelSize); } -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(); - - M_FONTDATA->SetFaceName(faceName); - - RealizeResource(); + AllocExclusive(); + + if ( !M_FONTDATA->SetFaceName(faceName) ) + return false; + + // 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::SetNativeFontInfo(const wxNativeFontInfo& info) +void wxFont::DoSetNativeFontInfo(const wxNativeFontInfo& info) { - Unshare(); - - FreeResource(); + AllocExclusive(); - *M_FONTDATA = wxFontRefData(info); - - RealizeResource(); + M_FONTDATA->SetNativeFontInfo(info); } // ---------------------------------------------------------------------------- @@ -791,58 +950,87 @@ void wxFont::SetNativeFontInfo(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(); } -int wxFont::GetFamily() const +wxSize wxFont::GetPixelSize() const { - wxCHECK_MSG( Ok(), 0, wxT("invalid font") ); + wxCHECK_MSG( IsOk(), wxDefaultSize, wxT("invalid font") ); + + return M_FONTDATA->GetPixelSize(); +} +bool wxFont::IsUsingSizeInPixels() const +{ + wxCHECK_MSG( IsOk(), 0, wxT("invalid font") ); + + return M_FONTDATA->IsUsingSizeInPixels(); +} + +wxFontFamily wxFont::DoGetFamily() const +{ 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(), wxT(""), 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(); } -wxNativeFontInfo *wxFont::GetNativeFontInfo() const +const wxNativeFontInfo *wxFont::GetNativeFontInfo() const { - if ( M_FONTDATA->HasNativeFontInfo() ) - return new wxNativeFontInfo(M_FONTDATA->GetNativeFontInfo()); - - return 0; + return IsOk() ? &(M_FONTDATA->GetNativeFontInfo()) : NULL; } +bool wxFont::IsFixedWidth() const +{ + 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()); + + TEXTMETRIC tm; + if ( !::GetTextMetrics(hdc, &tm) ) + { + wxLogLastError(wxT("GetTextMetrics")); + return false; + } + + // 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); +}