X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..467e04791c0d5914dc8ed8e535af607f7fc1dfe1:/src/common/fontcmn.cpp diff --git a/src/common/fontcmn.cpp b/src/common/fontcmn.cpp index e0196d4414..743667fa2a 100644 --- a/src/common/fontcmn.cpp +++ b/src/common/fontcmn.cpp @@ -6,7 +6,7 @@ // Created: 20.09.99 // RCS-ID: $Id$ // Copyright: (c) wxWidgets team -// Licence: wxWidgets licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -17,10 +17,6 @@ // 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" @@ -29,8 +25,10 @@ #endif #ifndef WX_PRECOMP -#include "wx/font.h" -#include "wx/intl.h" + #include "wx/dc.h" + #include "wx/font.h" + #include "wx/intl.h" + #include "wx/dcscreen.h" #endif // WX_PRECOMP #include "wx/gdicmn.h" @@ -49,6 +47,64 @@ // implementation // ============================================================================ +// ---------------------------------------------------------------------------- +// helper functions +// ---------------------------------------------------------------------------- + +static void AdjustFontSize(wxFont& font, wxDC& dc, const wxSize& pixelSize) +{ + int currentSize = 0; + int largestGood = 0; + int smallestBad = 0; + + bool initialGoodFound = false; + bool initialBadFound = false; + + // NB: this assignment was separated from the variable definition + // in order to fix a gcc v3.3.3 compiler crash + currentSize = font.GetPointSize(); + 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 // ---------------------------------------------------------------------------- @@ -83,31 +139,87 @@ wxFont *wxFontBase::New(int size, return new wxFont(size, family, style, weight, underlined, face, encoding); } -/* static */ -wxFont *wxFontBase::New(int pointSize, - wxFontFamily family, - int flags, - const wxString& face, - wxFontEncoding encoding) +static inline int flags2Style(int flags) { - return New - ( - pointSize, - family, - flags & wxFONTFLAG_ITALIC + return flags & wxFONTFLAG_ITALIC ? wxFONTSTYLE_ITALIC : flags & wxFONTFLAG_SLANT ? wxFONTSTYLE_SLANT - : wxFONTSTYLE_NORMAL, - flags & wxFONTFLAG_LIGHT + : wxFONTSTYLE_NORMAL; +} + +static inline int flags2Weight(int flags) +{ + return flags & wxFONTFLAG_LIGHT ? wxFONTWEIGHT_LIGHT : flags & wxFONTFLAG_BOLD ? wxFONTWEIGHT_BOLD - : wxFONTWEIGHT_NORMAL, - (flags & wxFONTFLAG_UNDERLINED) != 0, - face, - encoding - ); + : 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 */ @@ -188,14 +300,6 @@ void wxFontBase::SetNativeFontInfoUserDesc(const wxString& info) } } -wxFont& wxFont::operator=(const wxFont& font) -{ - if ( this != &font ) - Ref(font); - - return (wxFont &)*this; -} - bool wxFontBase::operator==(const wxFont& font) const { // either it is the same font, i.e. they share the same common data or they @@ -284,42 +388,42 @@ bool wxNativeFontInfo::FromString(const wxString& s) token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; pointSize = (int)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; family = (wxFontFamily)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; style = (wxFontStyle)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; weight = (wxFontWeight)l; token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; underlined = l != 0; faceName = tokenizer.GetNextToken(); #ifndef __WXMAC__ if( !faceName ) - return FALSE; + return false; #endif token = tokenizer.GetNextToken(); if ( !token.ToLong(&l) ) - return FALSE; + return false; encoding = (wxFontEncoding)l; - return TRUE; + return true; } wxString wxNativeFontInfo::ToString() const @@ -345,7 +449,7 @@ void wxNativeFontInfo::Init() family = wxFONTFAMILY_DEFAULT; style = wxFONTSTYLE_NORMAL; weight = wxFONTWEIGHT_NORMAL; - underlined = FALSE; + underlined = false; faceName.clear(); encoding = wxFONTENCODING_DEFAULT; } @@ -405,7 +509,7 @@ void wxNativeFontInfo::SetUnderlined(bool underlined_) underlined = underlined_; } -void wxNativeFontInfo::SetFaceName(wxString facename_) +void wxNativeFontInfo::SetFaceName(const wxString& facename_) { faceName = facename_; } @@ -490,7 +594,7 @@ wxString wxNativeFontInfo::ToUserString() const wxFontEncoding enc = GetEncoding(); if ( enc != wxFONTENCODING_DEFAULT && enc != wxFONTENCODING_SYSTEM ) { - desc << _T(' ') << wxFontMapper::Get()->GetEncodingName(enc); + desc << _T(' ') << wxFontMapper::GetEncodingName(enc); } #endif // wxUSE_FONTMAP @@ -519,12 +623,12 @@ bool wxNativeFontInfo::FromUserString(const wxString& s) wxString token = tokenizer.GetNextToken(); // normalize it - token.Trim(TRUE).Trim(FALSE).MakeLower(); + token.Trim(true).Trim(false).MakeLower(); // look for the known tokens if ( token == _T("underlined") || token == _("underlined") ) { - SetUnderlined(TRUE); + SetUnderlined(true); } else if ( token == _T("light") || token == _("light") ) { @@ -543,7 +647,7 @@ bool wxNativeFontInfo::FromUserString(const wxString& s) SetPointSize(size); } #if wxUSE_FONTMAP - else if ( (encoding = wxFontMapper::Get()->CharsetToEncoding(token, FALSE)) + else if ( (encoding = wxFontMapper::Get()->CharsetToEncoding(token, false)) != wxFONTENCODING_DEFAULT ) { SetEncoding(encoding); @@ -578,7 +682,7 @@ bool wxNativeFontInfo::FromUserString(const wxString& s) SetFaceName(face); } - return TRUE; + return true; } #endif // generic or wxMSW or wxOS2