X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/223d09f6b523aac674ef9b72a883dfa8d37c5d4e..7d3e806d86a159f3af1db1744a75de162e0e1a8d:/src/common/fontcmn.cpp?ds=sidebyside diff --git a/src/common/fontcmn.cpp b/src/common/fontcmn.cpp index c27bb8d92b..c4416f5bec 100644 --- a/src/common/fontcmn.cpp +++ b/src/common/fontcmn.cpp @@ -5,8 +5,8 @@ // Modified by: // Created: 20.09.99 // RCS-ID: $Id$ -// Copyright: (c) wxWindows team -// Licence: wxWindows license +// Copyright: (c) wxWidgets team +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -17,27 +17,117 @@ // headers // ---------------------------------------------------------------------------- +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) +#pragma implementation "fontbase.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 "wx/font.h" + #include "wx/intl.h" + #include "wx/dcscreen.h" #endif // WX_PRECOMP +#include "wx/gdicmn.h" + +#if defined(__WXMSW__) + #include "wx/msw/private.h" // includes windows.h for LOGFONT + #include "wx/msw/winundef.h" +#endif + +#include "wx/fontutil.h" // for wxNativeFontInfo +#include "wx/fontmap.h" + +#include "wx/tokenzr.h" + // ============================================================================ // implementation // ============================================================================ +// ---------------------------------------------------------------------------- +// helper functions +// ---------------------------------------------------------------------------- + +static void AdjustFontSize(wxFont& font, wxDC& dc, const wxSize& pixelSize) +{ + int currentSize = font.GetPointSize(); + int largestGood = 0; + int smallestBad = 0; + + bool initialGoodFound = false; + bool initialBadFound = false; + + while (currentSize > 0) + { + dc.SetFont(font); + + // if currentSize (in points) results in a font that is smaller + // than required by pixelSize it is considered a good size + if (dc.GetCharHeight() <= pixelSize.GetHeight() && + (!pixelSize.GetWidth() || + dc.GetCharWidth() <= pixelSize.GetWidth())) + { + largestGood = currentSize; + initialGoodFound = true; + } + else + { + smallestBad = currentSize; + initialBadFound = true; + } + if (!initialGoodFound) + { + currentSize /= 2; + } + else if (!initialBadFound) + { + currentSize *= 2; + } + else + { + int distance = smallestBad - largestGood; + if (distance == 1) + break; + + currentSize = largestGood + distance / 2; + } + + font.SetPointSize(currentSize); + } + + if (currentSize != largestGood) + font.SetPointSize(largestGood); +} + // ---------------------------------------------------------------------------- // wxFontBase // ---------------------------------------------------------------------------- wxFontEncoding wxFontBase::ms_encodingDefault = wxFONTENCODING_SYSTEM; +/* static */ +void wxFontBase::SetDefaultEncoding(wxFontEncoding encoding) +{ + // GetDefaultEncoding() should return something != wxFONTENCODING_DEFAULT + // and, besides, using this value here doesn't make any sense + wxCHECK_RET( encoding != wxFONTENCODING_DEFAULT, + _T("can't set default encoding to wxFONTENCODING_DEFAULT") ); + + ms_encodingDefault = encoding; +} + +wxFontBase::~wxFontBase() +{ + // this destructor is required for Darwin +} + +/* static */ wxFont *wxFontBase::New(int size, int family, int style, @@ -49,6 +139,167 @@ wxFont *wxFontBase::New(int size, return new wxFont(size, family, style, weight, underlined, face, encoding); } +static inline int flags2Style(int flags) +{ + return flags & wxFONTFLAG_ITALIC + ? wxFONTSTYLE_ITALIC + : flags & wxFONTFLAG_SLANT + ? wxFONTSTYLE_SLANT + : wxFONTSTYLE_NORMAL; +} + +static inline int flags2Weight(int flags) +{ + return flags & wxFONTFLAG_LIGHT + ? wxFONTWEIGHT_LIGHT + : flags & wxFONTFLAG_BOLD + ? wxFONTWEIGHT_BOLD + : wxFONTWEIGHT_NORMAL; +} + +static inline bool flags2Underlined(int flags) +{ + return (flags & wxFONTFLAG_UNDERLINED) != 0; +} + +/* static */ +wxFont *wxFontBase::New(int pointSize, + wxFontFamily family, + int flags, + const wxString& face, + wxFontEncoding encoding) +{ + return New(pointSize, family, flags2Style(flags), flags2Weight(flags), + flags2Underlined(flags), face, encoding); +} + +/* static */ +wxFont *wxFontBase::New(const wxSize& pixelSize, + int family, + int style, + int weight, + bool underlined, + const wxString& face, + wxFontEncoding encoding) +{ +#if defined(__WXMSW__) + return new wxFont(pixelSize, family, style, weight, underlined, + face, encoding); +#else + wxFont *self = New(10, family, style, weight, underlined, face, encoding); + wxScreenDC dc; + AdjustFontSize(*(wxFont *)self, dc, pixelSize); + return self; +#endif +} + +/* static */ +wxFont *wxFontBase::New(const wxSize& pixelSize, + wxFontFamily family, + int flags, + const wxString& face, + wxFontEncoding encoding) +{ + return New(pixelSize, family, flags2Style(flags), flags2Weight(flags), + flags2Underlined(flags), face, encoding); +} + +wxSize wxFontBase::GetPixelSize() const +{ + wxScreenDC dc; + dc.SetFont(*(wxFont *)this); + return wxSize(dc.GetCharWidth(), dc.GetCharHeight()); +} + +bool wxFontBase::IsUsingSizeInPixels() const +{ + return false; +} + +void wxFontBase::SetPixelSize( const wxSize& pixelSize ) +{ + wxScreenDC dc; + AdjustFontSize(*(wxFont *)this, dc, pixelSize); +} + +/* static */ +wxFont *wxFontBase::New(const wxNativeFontInfo& info) +{ + return new wxFont(info); +} + +/* static */ +wxFont *wxFontBase::New(const wxString& strNativeFontDesc) +{ + wxNativeFontInfo fontInfo; + if ( !fontInfo.FromString(strNativeFontDesc) ) + return new wxFont(*wxNORMAL_FONT); + + return New(fontInfo); +} + +bool wxFontBase::IsFixedWidth() const +{ + return GetFamily() == wxFONTFAMILY_TELETYPE; +} + +void wxFontBase::DoSetNativeFontInfo(const wxNativeFontInfo& info) +{ +#ifdef wxNO_NATIVE_FONTINFO + SetPointSize(info.pointSize); + SetFamily(info.family); + SetStyle(info.style); + SetWeight(info.weight); + SetUnderlined(info.underlined); + SetFaceName(info.faceName); + SetEncoding(info.encoding); +#else + (void)info; +#endif +} + +wxString wxFontBase::GetNativeFontInfoDesc() const +{ + wxString fontDesc; + const wxNativeFontInfo *fontInfo = GetNativeFontInfo(); + if ( fontInfo ) + { + fontDesc = fontInfo->ToString(); + } + + return fontDesc; +} + +wxString wxFontBase::GetNativeFontInfoUserDesc() const +{ + wxString fontDesc; + const wxNativeFontInfo *fontInfo = GetNativeFontInfo(); + if ( fontInfo ) + { + fontDesc = fontInfo->ToUserString(); + } + + return fontDesc; +} + +void wxFontBase::SetNativeFontInfo(const wxString& info) +{ + wxNativeFontInfo fontInfo; + if ( !info.empty() && fontInfo.FromString(info) ) + { + SetNativeFontInfo(fontInfo); + } +} + +void wxFontBase::SetNativeFontInfoUserDesc(const wxString& info) +{ + wxNativeFontInfo fontInfo; + if ( !info.empty() && fontInfo.FromUserString(info) ) + { + SetNativeFontInfo(fontInfo); + } +} + wxFont& wxFont::operator=(const wxFont& font) { if ( this != &font ) @@ -57,15 +308,26 @@ wxFont& wxFont::operator=(const wxFont& font) return (wxFont &)*this; } -// VZ: is it correct to compare pointers and not the contents? (FIXME) bool wxFontBase::operator==(const wxFont& font) const { - return GetFontData() == font.GetFontData(); + // either it is the same font, i.e. they share the same common data or they + // have different ref datas but still describe the same font + return GetFontData() == font.GetFontData() || + ( + Ok() == font.Ok() && + GetPointSize() == font.GetPointSize() && + GetFamily() == font.GetFamily() && + GetStyle() == font.GetStyle() && + GetWeight() == font.GetWeight() && + GetUnderlined() == font.GetUnderlined() && + GetFaceName() == font.GetFaceName() && + GetEncoding() == font.GetEncoding() + ); } bool wxFontBase::operator!=(const wxFont& font) const { - return GetFontData() != font.GetFontData(); + return !(*this == font); } wxString wxFontBase::GetFamilyString() const @@ -110,3 +372,326 @@ wxString wxFontBase::GetWeightString() const } } +// ---------------------------------------------------------------------------- +// wxNativeFontInfo +// ---------------------------------------------------------------------------- + +#ifdef wxNO_NATIVE_FONTINFO + +// These are the generic forms of FromString()/ToString. +// +// convert to/from the string representation: format is +// version;pointsize;family;style;weight;underlined;facename;encoding + +bool wxNativeFontInfo::FromString(const wxString& s) +{ + long l; + + wxStringTokenizer tokenizer(s, _T(";")); + + wxString token = tokenizer.GetNextToken(); + // + // Ignore the version for now + // + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return false; + pointSize = (int)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return false; + family = (wxFontFamily)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return false; + style = (wxFontStyle)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return false; + weight = (wxFontWeight)l; + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return false; + underlined = l != 0; + + faceName = tokenizer.GetNextToken(); + +#ifndef __WXMAC__ + if( !faceName ) + return false; +#endif + + token = tokenizer.GetNextToken(); + if ( !token.ToLong(&l) ) + return false; + encoding = (wxFontEncoding)l; + + return true; +} + +wxString wxNativeFontInfo::ToString() const +{ + wxString s; + + s.Printf(_T("%d;%d;%d;%d;%d;%d;%s;%d"), + 0, // version + pointSize, + family, + (int)style, + (int)weight, + underlined, + faceName.GetData(), + (int)encoding); + + return s; +} + +void wxNativeFontInfo::Init() +{ + pointSize = 0; + family = wxFONTFAMILY_DEFAULT; + style = wxFONTSTYLE_NORMAL; + weight = wxFONTWEIGHT_NORMAL; + underlined = false; + faceName.clear(); + encoding = wxFONTENCODING_DEFAULT; +} + +int wxNativeFontInfo::GetPointSize() const +{ + return pointSize; +} + +wxFontStyle wxNativeFontInfo::GetStyle() const +{ + return style; +} + +wxFontWeight wxNativeFontInfo::GetWeight() const +{ + return weight; +} + +bool wxNativeFontInfo::GetUnderlined() const +{ + return underlined; +} + +wxString wxNativeFontInfo::GetFaceName() const +{ + return faceName; +} + +wxFontFamily wxNativeFontInfo::GetFamily() const +{ + return family; +} + +wxFontEncoding wxNativeFontInfo::GetEncoding() const +{ + return encoding; +} + +void wxNativeFontInfo::SetPointSize(int pointsize) +{ + pointSize = pointsize; +} + +void wxNativeFontInfo::SetStyle(wxFontStyle style_) +{ + style = style_; +} + +void wxNativeFontInfo::SetWeight(wxFontWeight weight_) +{ + weight = weight_; +} + +void wxNativeFontInfo::SetUnderlined(bool underlined_) +{ + underlined = underlined_; +} + +void wxNativeFontInfo::SetFaceName(wxString facename_) +{ + faceName = facename_; +} + +void wxNativeFontInfo::SetFamily(wxFontFamily family_) +{ + family = family_; +} + +void wxNativeFontInfo::SetEncoding(wxFontEncoding encoding_) +{ + encoding = encoding_; +} + +#endif // generic wxNativeFontInfo implementation + +// conversion to/from user-readable string: this is used in the generic +// versions and under MSW as well because there is no standard font description +// format there anyhow (but there is a well-defined standard for X11 fonts used +// by wxGTK and wxMotif) + +#if defined(wxNO_NATIVE_FONTINFO) || defined(__WXMSW__) || defined (__WXPM__) + +wxString wxNativeFontInfo::ToUserString() const +{ + wxString desc; + + // first put the adjectives, if any - this is English-centric, of course, + // but what else can we do? + if ( GetUnderlined() ) + { + desc << _("underlined "); + } + + switch ( GetWeight() ) + { + default: + wxFAIL_MSG( _T("unknown font weight") ); + // fall through + + case wxFONTWEIGHT_NORMAL: + break; + + case wxFONTWEIGHT_LIGHT: + desc << _("light "); + break; + + case wxFONTWEIGHT_BOLD: + desc << _("bold "); + break; + } + + switch ( GetStyle() ) + { + default: + wxFAIL_MSG( _T("unknown font style") ); + // fall through + + case wxFONTSTYLE_NORMAL: + break; + + // we don't distinguish between the two for now anyhow... + case wxFONTSTYLE_ITALIC: + case wxFONTSTYLE_SLANT: + desc << _("italic"); + break; + } + + wxString face = GetFaceName(); + if ( !face.empty() ) + { + desc << _T(' ') << face; + } + + int size = GetPointSize(); + if ( size != wxNORMAL_FONT->GetPointSize() ) + { + desc << _T(' ') << size; + } + +#if wxUSE_FONTMAP + wxFontEncoding enc = GetEncoding(); + if ( enc != wxFONTENCODING_DEFAULT && enc != wxFONTENCODING_SYSTEM ) + { + desc << _T(' ') << wxFontMapper::Get()->GetEncodingName(enc); + } +#endif // wxUSE_FONTMAP + + return desc; +} + +bool wxNativeFontInfo::FromUserString(const wxString& s) +{ + // reset to the default state + Init(); + + // parse a more or less free form string + // + // TODO: we should handle at least the quoted facenames + wxStringTokenizer tokenizer(s, _T(";, "), wxTOKEN_STRTOK); + + wxString face; + unsigned long size; + +#if wxUSE_FONTMAP + wxFontEncoding encoding; +#endif // wxUSE_FONTMAP + + while ( tokenizer.HasMoreTokens() ) + { + wxString token = tokenizer.GetNextToken(); + + // normalize it + token.Trim(true).Trim(false).MakeLower(); + + // look for the known tokens + if ( token == _T("underlined") || token == _("underlined") ) + { + SetUnderlined(true); + } + else if ( token == _T("light") || token == _("light") ) + { + SetWeight(wxFONTWEIGHT_LIGHT); + } + else if ( token == _T("bold") || token == _("bold") ) + { + SetWeight(wxFONTWEIGHT_BOLD); + } + else if ( token == _T("italic") || token == _("italic") ) + { + SetStyle(wxFONTSTYLE_ITALIC); + } + else if ( token.ToULong(&size) ) + { + SetPointSize(size); + } +#if wxUSE_FONTMAP + else if ( (encoding = wxFontMapper::Get()->CharsetToEncoding(token, false)) + != wxFONTENCODING_DEFAULT ) + { + SetEncoding(encoding); + } +#endif // wxUSE_FONTMAP + else // assume it is the face name + { + if ( !face.empty() ) + { + face += _T(' '); + } + + face += token; + + // skip the code which resets face below + continue; + } + + // if we had had the facename, we shouldn't continue appending tokens + // to it (i.e. "foo bold bar" shouldn't result in the facename "foo + // bar") + if ( !face.empty() ) + { + SetFaceName(face); + face.clear(); + } + } + + // we might not have flushed it inside the loop + if ( !face.empty() ) + { + SetFaceName(face); + } + + return true; +} + +#endif // generic or wxMSW or wxOS2 +