moved wxMGL's font management code to common so that it can be reused by wxDFB; implemented wxDFB part
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43550 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
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src/dfb/fontmgr.cpp
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217
src/dfb/fontmgr.cpp
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/////////////////////////////////////////////////////////////////////////////
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// Name: src/dfb/fontmgr.cpp
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// Purpose: font management for wxDFB
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// Author: Vaclav Slavik
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// Created: 2006-11-18
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// RCS-ID: $Id$
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// Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
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// (c) 2006 REA Elektronik GmbH
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/fileconf.h"
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#include "wx/filename.h"
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#include "wx/private/fontmgr.h"
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#include "wx/dfb/wrapdfb.h"
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxFontInstance
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// ----------------------------------------------------------------------------
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wxFontInstance::wxFontInstance(float ptSize, bool aa,
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const wxString& filename)
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: wxFontInstanceBase(ptSize, aa)
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{
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int scrSizePx, scrSizeMM;
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wxDisplaySize(NULL, &scrSizePx);
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wxDisplaySizeMM(NULL, &scrSizeMM);
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double dpi = (scrSizePx / (scrSizeMM * mm2inches));
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// NB: DFB's fract_height value is 32bit integer with the last 6 bit
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// representing fractional value, hence the multiplication by 64;
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// 1pt=1/72inch, hence "/ 72"
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int pixSize = int(ptSize * dpi * 64 / 72);
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DFBFontDescription desc;
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desc.flags = (DFBFontDescriptionFlags)(
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DFDESC_ATTRIBUTES | DFDESC_FRACT_HEIGHT);
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desc.attributes = aa ? DFFA_NONE : DFFA_MONOCHROME;
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desc.fract_height = pixSize;
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m_font = wxIDirectFB::Get()->CreateFont(filename.fn_str(), &desc);
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wxASSERT_MSG( m_font, _T("cannot create font instance") );
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}
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// ----------------------------------------------------------------------------
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// wxFontFace
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// ----------------------------------------------------------------------------
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wxFontInstance *wxFontFace::CreateFontInstance(float ptSize, bool aa)
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{
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return new wxFontInstance(ptSize, aa, m_fileName);
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}
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// ----------------------------------------------------------------------------
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// wxFontBundle
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// ----------------------------------------------------------------------------
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wxFontBundle::wxFontBundle(const wxString& name,
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const wxString& fileRegular,
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const wxString& fileBold,
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const wxString& fileItalic,
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const wxString& fileBoldItalic,
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bool isFixed)
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{
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m_name = name;
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m_isFixed = isFixed;
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if ( !fileRegular.empty() )
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m_faces[FaceType_Regular] = new wxFontFace(fileRegular);
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if ( !fileItalic.empty() )
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m_faces[FaceType_Italic] = new wxFontFace(fileItalic);
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if ( !fileBold.empty() )
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m_faces[FaceType_Bold] = new wxFontFace(fileBold);
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if ( !fileBoldItalic.empty() )
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m_faces[FaceType_BoldItalic] = new wxFontFace(fileBoldItalic);
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}
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// ----------------------------------------------------------------------------
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// wxFontsManager
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// ----------------------------------------------------------------------------
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/*
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The code below parses font configuration file ${WXDFB_FONTDIR}/FontsIndex.
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By default, the directory is $prefix/share/wx/fonts, but can be ovewritten
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by setting WXDFB_FONTDIR environment variable.
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The file is standard wxFileConfig file text file. Each toplevel group
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specifies one font bundle, font's name is the name of group. Group's entries
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look like this:
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[Font Name]
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# font files (at least one of them must be present):
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Regular=RegularFaceFile.ttf
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Italic=ItalicFaceFile.ttf
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Bold=BoldFaceFile.ttf
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BoldItalic=BoldItalicFaceFile.ttf
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# optional tag indicating this font is fixed-with (default is false):
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IsFixed=1
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Additionally, there may be DefaultXXX entries at the toplevel for every
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family XXX and a Default entry that is shortcut for setting all families'
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default, their value is name of the default font:
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# optional tags indicating the default font for given family:
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DefaultDecorative=Font Name
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DefaultRoman=Font Name
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DefaultScript=Font Name
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DefaultSwiss=Font Name
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DefaultModern=Font Name
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DefaultTeletype=Font Name
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# indicate the font that is default for all families (optional):
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Default=Font Name
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*/
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void wxFontsManager::AddAllFonts()
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{
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wxString dir = _T(wxINSTALL_PREFIX "/share/wx/fonts");
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wxGetEnv(_T("WXDFB_FONTDIR"), &dir);
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wxString indexFile = dir + _T("/FontsIndex");
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if ( !wxFileName::FileExists(indexFile) )
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{
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wxLogWarning(_("No fonts found in %s"), dir.c_str());
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return;
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}
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wxLogTrace(_T("font"), _T("adding fonts from %s"), dir.c_str());
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wxFileConfig cfg(wxEmptyString, wxEmptyString,
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indexFile, wxEmptyString,
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wxCONFIG_USE_LOCAL_FILE);
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long i;
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wxString name;
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for ( bool cont = cfg.GetFirstGroup(name, i);
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cont;
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cont = cfg.GetNextGroup(name, i) )
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{
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AddFont(dir, name, cfg);
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}
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// set default fonts for families:
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SetDefaultFonts(cfg);
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}
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static wxString
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ReadFilePath(const wxString& name, const wxString& dir, wxFileConfig& cfg)
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{
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wxString p = cfg.Read(name, wxEmptyString);
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if ( p.empty() || wxFileName(p).IsAbsolute() )
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return p;
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return dir + _T("/") + p;
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}
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void wxFontsManager::AddFont(const wxString& dir,
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const wxString& name,
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wxFileConfig& cfg)
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{
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wxLogTrace(_T("font"), _T("adding font '%s'"), name.c_str());
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wxConfigPathChanger ch(&cfg, wxString::Format(_T("/%s/"), name.c_str()));
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AddBundle
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(
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new wxFontBundle
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(
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name,
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ReadFilePath(_T("Regular"), dir, cfg),
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ReadFilePath(_T("Italic"), dir, cfg),
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ReadFilePath(_T("Bold"), dir, cfg),
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ReadFilePath(_T("BoldItalic"), dir, cfg),
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cfg.Read(_T("IsFixed"), (long)false)
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)
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);
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}
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void wxFontsManager::SetDefaultFonts(wxFileConfig& cfg)
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{
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wxString name;
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if ( cfg.Read(_T("Default"), &name) )
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{
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m_defaultFacenames[wxFONTFAMILY_DECORATIVE] =
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m_defaultFacenames[wxFONTFAMILY_ROMAN] =
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m_defaultFacenames[wxFONTFAMILY_SCRIPT] =
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m_defaultFacenames[wxFONTFAMILY_SWISS] =
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m_defaultFacenames[wxFONTFAMILY_MODERN] =
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m_defaultFacenames[wxFONTFAMILY_TELETYPE] = name;
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}
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if ( cfg.Read(_T("DefaultDecorative"), &name) )
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m_defaultFacenames[wxFONTFAMILY_DECORATIVE] = name;
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if ( cfg.Read(_T("DefaultRoman"), &name) )
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m_defaultFacenames[wxFONTFAMILY_ROMAN] = name;
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if ( cfg.Read(_T("DefaultScript"), &name) )
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m_defaultFacenames[wxFONTFAMILY_SCRIPT] = name;
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if ( cfg.Read(_T("DefaultSwiss"), &name) )
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m_defaultFacenames[wxFONTFAMILY_SWISS] = name;
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if ( cfg.Read(_T("DefaultModern"), &name) )
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m_defaultFacenames[wxFONTFAMILY_MODERN] = name;
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if ( cfg.Read(_T("DefaultTeletype"), &name) )
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m_defaultFacenames[wxFONTFAMILY_TELETYPE] = name;
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}
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