f481b72d90
known encodings so that message catalogs written in
these encodings can be loaded. I did't find the code
where I can specify that GB2312 is actually the same
as the Windows code page.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@17627 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1019 lines
31 KiB
C++
1019 lines
31 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: common/fontmap.cpp
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// Purpose: wxFontMapper class
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 04.11.99
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// RCS-ID: $Id$
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// Copyright: (c) Vadim Zeitlin
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#ifdef __GNUG__
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#pragma implementation "fontmap.h"
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#endif
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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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#if wxUSE_FONTMAP
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#ifndef WX_PRECOMP
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#include "wx/app.h"
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#include "wx/log.h"
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#include "wx/intl.h"
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#endif // PCH
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#include "wx/module.h"
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#include "wx/fontmap.h"
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#if wxUSE_CONFIG
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#include "wx/config.h"
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#include "wx/memconf.h"
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#endif
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#if wxUSE_GUI
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#include "wx/fontutil.h"
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#include "wx/msgdlg.h"
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#include "wx/fontdlg.h"
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#include "wx/choicdlg.h"
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#endif // wxUSE_GUI
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#include "wx/encconv.h"
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// the config paths we use
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#if wxUSE_CONFIG
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static const wxChar* FONTMAPPER_ROOT_PATH = wxT("/wxWindows/FontMapper");
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static const wxChar* FONTMAPPER_CHARSET_PATH = wxT("Charsets");
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static const wxChar* FONTMAPPER_CHARSET_ALIAS_PATH = wxT("Aliases");
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// we only ask questions in GUI mode
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#if wxUSE_GUI
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static const wxChar* FONTMAPPER_FONT_FROM_ENCODING_PATH = wxT("Encodings");
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static const wxChar* FONTMAPPER_FONT_DONT_ASK = wxT("none");
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#endif // wxUSE_GUI
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#endif // wxUSE_CONFIG
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// encodings supported by GetEncodingDescription
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static wxFontEncoding gs_encodings[] =
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{
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wxFONTENCODING_ISO8859_1,
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wxFONTENCODING_ISO8859_2,
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wxFONTENCODING_ISO8859_3,
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wxFONTENCODING_ISO8859_4,
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wxFONTENCODING_ISO8859_5,
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wxFONTENCODING_ISO8859_6,
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wxFONTENCODING_ISO8859_7,
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wxFONTENCODING_ISO8859_8,
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wxFONTENCODING_ISO8859_9,
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wxFONTENCODING_ISO8859_10,
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wxFONTENCODING_ISO8859_11,
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wxFONTENCODING_ISO8859_12,
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wxFONTENCODING_ISO8859_13,
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wxFONTENCODING_ISO8859_14,
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wxFONTENCODING_ISO8859_15,
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wxFONTENCODING_GB2312,
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wxFONTENCODING_BIG5,
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wxFONTENCODING_SHIFT_JIS,
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wxFONTENCODING_EUC_JP,
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wxFONTENCODING_KOI8,
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wxFONTENCODING_CP932,
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wxFONTENCODING_CP936,
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wxFONTENCODING_CP949,
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wxFONTENCODING_CP950,
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wxFONTENCODING_CP1250,
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wxFONTENCODING_CP1251,
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wxFONTENCODING_CP1252,
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wxFONTENCODING_CP1253,
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wxFONTENCODING_CP1254,
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wxFONTENCODING_CP1255,
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wxFONTENCODING_CP1256,
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wxFONTENCODING_CP1257,
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wxFONTENCODING_CP437,
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wxFONTENCODING_UTF7,
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wxFONTENCODING_UTF8,
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};
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// the descriptions for them
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static const wxChar* gs_encodingDescs[] =
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{
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wxTRANSLATE( "Western European (ISO-8859-1)" ),
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wxTRANSLATE( "Central European (ISO-8859-2)" ),
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wxTRANSLATE( "Esperanto (ISO-8859-3)" ),
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wxTRANSLATE( "Baltic (old) (ISO-8859-4)" ),
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wxTRANSLATE( "Cyrillic (ISO-8859-5)" ),
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wxTRANSLATE( "Arabic (ISO-8859-6)" ),
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wxTRANSLATE( "Greek (ISO-8859-7)" ),
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wxTRANSLATE( "Hebrew (ISO-8859-8)" ),
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wxTRANSLATE( "Turkish (ISO-8859-9)" ),
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wxTRANSLATE( "Nordic (ISO-8859-10)" ),
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wxTRANSLATE( "Thai (ISO-8859-11)" ),
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wxTRANSLATE( "Indian (ISO-8859-12)" ),
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wxTRANSLATE( "Baltic (ISO-8859-13)" ),
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wxTRANSLATE( "Celtic (ISO-8859-14)" ),
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wxTRANSLATE( "Western European with Euro (ISO-8859-15)" ),
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wxTRANSLATE( "KOI8-R" ),
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wxTRANSLATE( "Chinese Simplified (GB2312)" ),
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wxTRANSLATE( "Chinese Traditional (BIG5)" ),
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wxTRANSLATE( "Japanese (Shift-JIS)" ),
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wxTRANSLATE( "Extended Unix Codepage for Japanese (EUC-JP)" ),
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wxTRANSLATE( "Windows Japanese (CP 932)" ),
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wxTRANSLATE( "Windows Chinese Simplified (CP 936)" ),
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wxTRANSLATE( "Windows Korean (CP 949)" ),
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wxTRANSLATE( "Windows Chinese Traditional (CP 950)" ),
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wxTRANSLATE( "Windows Central European (CP 1250)" ),
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wxTRANSLATE( "Windows Cyrillic (CP 1251)" ),
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wxTRANSLATE( "Windows Western European (CP 1252)" ),
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wxTRANSLATE( "Windows Greek (CP 1253)" ),
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wxTRANSLATE( "Windows Turkish (CP 1254)" ),
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wxTRANSLATE( "Windows Hebrew (CP 1255)" ),
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wxTRANSLATE( "Windows Arabic (CP 1256)" ),
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wxTRANSLATE( "Windows Baltic (CP 1257)" ),
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wxTRANSLATE( "Windows/DOS OEM (CP 437)" ),
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wxTRANSLATE( "Unicode 7 bit (UTF-7)" ),
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wxTRANSLATE( "Unicode 8 bit (UTF-8)" ),
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};
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// and the internal names (these are not translated on purpose!)
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static const wxChar* gs_encodingNames[] =
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{
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wxT( "iso-8859-1" ),
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wxT( "iso-8859-2" ),
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wxT( "iso-8859-3" ),
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wxT( "iso-8859-4" ),
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wxT( "iso-8859-5" ),
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wxT( "iso-8859-6" ),
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wxT( "iso-8859-7" ),
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wxT( "iso-8859-8" ),
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wxT( "iso-8859-9" ),
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wxT( "iso-8859-10" ),
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wxT( "iso-8859-11" ),
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wxT( "iso-8859-12" ),
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wxT( "iso-8859-13" ),
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wxT( "iso-8859-14" ),
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wxT( "iso-8859-15" ),
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wxT( "koi8-r" ),
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wxT( "gb2312" ),
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wxT( "big5" ),
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wxT( "shift-jis" ),
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wxT( "euc-jp" ),
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wxT( "windows-932" ),
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wxT( "windows-936" ),
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wxT( "windows-949" ),
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wxT( "windows-950" ),
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wxT( "windows-1250" ),
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wxT( "windows-1251" ),
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wxT( "windows-1252" ),
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wxT( "windows-1253" ),
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wxT( "windows-1254" ),
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wxT( "windows-1255" ),
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wxT( "windows-1256" ),
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wxT( "windows-1257" ),
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wxT( "windows-437" ),
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wxT( "utf-7" ),
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wxT( "utf-8" ),
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};
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// ----------------------------------------------------------------------------
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// private classes
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// ----------------------------------------------------------------------------
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// change the config path during the lifetime of this object
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class wxFontMapperPathChanger
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{
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public:
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wxFontMapperPathChanger(wxFontMapper *fontMapper, const wxString& path)
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{
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m_fontMapper = fontMapper;
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m_ok = m_fontMapper->ChangePath(path, &m_pathOld);
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}
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bool IsOk() const { return m_ok; }
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~wxFontMapperPathChanger()
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{
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if ( IsOk() )
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m_fontMapper->RestorePath(m_pathOld);
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}
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private:
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wxFontMapper *m_fontMapper;
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bool m_ok;
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wxString m_pathOld;
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};
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// ctor and dtor
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// ----------------------------------------------------------------------------
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wxFontMapper::wxFontMapper()
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{
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#if wxUSE_CONFIG
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m_config = NULL;
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m_configIsDummy = FALSE;
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#endif // wxUSE_CONFIG
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#if wxUSE_GUI
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m_windowParent = NULL;
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#endif // wxUSE_GUI
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}
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wxFontMapper::~wxFontMapper()
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{
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#if wxUSE_CONFIG
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if ( m_configIsDummy )
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delete m_config;
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#endif // wxUSE_CONFIG
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}
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wxFontMapper *wxFontMapper::sm_instance = NULL;
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/*static*/ wxFontMapper *wxFontMapper::Get()
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{
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if ( !sm_instance )
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sm_instance = new wxFontMapper;
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return sm_instance;
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}
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/*static*/ wxFontMapper *wxFontMapper::Set(wxFontMapper *mapper)
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{
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wxFontMapper *old = sm_instance;
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sm_instance = mapper;
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return old;
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}
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class wxFontMapperModule: public wxModule
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{
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public:
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wxFontMapperModule() : wxModule() {}
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virtual bool OnInit() { return TRUE; }
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virtual void OnExit() { delete wxFontMapper::Set(NULL); }
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DECLARE_DYNAMIC_CLASS(wxFontMapperModule)
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};
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IMPLEMENT_DYNAMIC_CLASS(wxFontMapperModule, wxModule)
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// ----------------------------------------------------------------------------
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// customisation
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// ----------------------------------------------------------------------------
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#if wxUSE_CONFIG
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/* static */ const wxChar *wxFontMapper::GetDefaultConfigPath()
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{
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return FONTMAPPER_ROOT_PATH;
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}
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void wxFontMapper::SetConfigPath(const wxString& prefix)
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{
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wxCHECK_RET( !prefix.IsEmpty() && prefix[0] == wxCONFIG_PATH_SEPARATOR,
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wxT("an absolute path should be given to wxFontMapper::SetConfigPath()") );
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m_configRootPath = prefix;
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}
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// ----------------------------------------------------------------------------
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// get config object and path for it
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// ----------------------------------------------------------------------------
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wxConfigBase *wxFontMapper::GetConfig()
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{
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if ( !m_config )
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{
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// try the default
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m_config = wxConfig::Get(FALSE /*don't create on demand*/ );
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if ( !m_config )
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{
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// we still want to have a config object because otherwise we would
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// keep asking the user the same questions in the interactive mode,
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// so create a dummy config which won't write to any files/registry
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// but will allow us to remember the results of the questions at
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// least during this run
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m_config = new wxMemoryConfig;
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m_configIsDummy = TRUE;
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// VS: we can't call wxConfig::Set(m_config) here because that would
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// disable automatic wxConfig instance creation if this code was
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// called before wxApp::OnInit (this happens in wxGTK -- it sets
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// default wxFont encoding in wxApp::Initialize())
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}
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}
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if ( m_configIsDummy && wxConfig::Get(FALSE) != NULL )
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{
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// VS: in case we created dummy m_config (see above), we want to switch back
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// to the real one as soon as one becomes available.
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delete m_config;
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m_config = wxConfig::Get(FALSE);
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m_configIsDummy = FALSE;
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// FIXME: ideally, we should add keys from dummy config to the real one now,
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// but it is a low-priority task because typical wxWin application
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// either doesn't use wxConfig at all or creates wxConfig object in
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// wxApp::OnInit(), before any real interaction with the user takes
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// place...
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}
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return m_config;
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}
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const wxString& wxFontMapper::GetConfigPath()
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{
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if ( !m_configRootPath )
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{
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// use the default
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m_configRootPath = GetDefaultConfigPath();
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}
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return m_configRootPath;
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}
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#endif
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bool wxFontMapper::ChangePath(const wxString& pathNew, wxString *pathOld)
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{
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#if wxUSE_CONFIG
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wxConfigBase *config = GetConfig();
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if ( !config )
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return FALSE;
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*pathOld = config->GetPath();
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wxString path = GetConfigPath();
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if ( path.IsEmpty() || path.Last() != wxCONFIG_PATH_SEPARATOR )
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{
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path += wxCONFIG_PATH_SEPARATOR;
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}
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wxASSERT_MSG( !pathNew || (pathNew[0] != wxCONFIG_PATH_SEPARATOR),
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wxT("should be a relative path") );
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path += pathNew;
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config->SetPath(path);
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return TRUE;
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#else
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return FALSE;
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#endif
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}
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void wxFontMapper::RestorePath(const wxString& pathOld)
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{
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#if wxUSE_CONFIG
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GetConfig()->SetPath(pathOld);
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#else
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#endif
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}
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// ----------------------------------------------------------------------------
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// charset/encoding correspondence
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// ----------------------------------------------------------------------------
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/* static */
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wxString wxFontMapper::GetEncodingDescription(wxFontEncoding encoding)
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{
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if ( encoding == wxFONTENCODING_DEFAULT )
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{
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return _("Default encoding");
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}
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size_t count = WXSIZEOF(gs_encodingDescs);
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wxASSERT_MSG( count == WXSIZEOF(gs_encodings),
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wxT("inconsitency detected - forgot to update one of the arrays?") );
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for ( size_t i = 0; i < count; i++ )
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{
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if ( gs_encodings[i] == encoding )
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{
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return wxGetTranslation(gs_encodingDescs[i]);
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}
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}
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wxString str;
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str.Printf(_("Unknown encoding (%d)"), encoding);
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return str;
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}
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/* static */
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wxString wxFontMapper::GetEncodingName(wxFontEncoding encoding)
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{
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if ( encoding == wxFONTENCODING_DEFAULT )
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{
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return _("default");
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}
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size_t count = WXSIZEOF(gs_encodingNames);
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wxASSERT_MSG( count == WXSIZEOF(gs_encodings),
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wxT("inconsistency detected - forgot to update one of the arrays?") );
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for ( size_t i = 0; i < count; i++ )
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{
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if ( gs_encodings[i] == encoding )
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{
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return gs_encodingNames[i];
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}
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}
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wxString str;
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str.Printf(_("unknown-%d"), encoding);
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return str;
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}
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wxFontEncoding wxFontMapper::CharsetToEncoding(const wxString& charset,
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bool interactive)
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{
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// a special pseudo encoding which means "don't ask me about this charset
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// any more" - we need it to avoid driving the user crazy with asking him
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// time after time about the same charset which he [presumably] doesn't
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// have the fonts fot
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static const int wxFONTENCODING_UNKNOWN = -2;
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wxFontEncoding encoding = wxFONTENCODING_SYSTEM;
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// we're going to modify it, make a copy
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wxString cs = charset;
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#if wxUSE_CONFIG
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// first try the user-defined settings
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wxString pathOld;
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if ( ChangePath(FONTMAPPER_CHARSET_PATH, &pathOld) )
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{
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wxConfigBase *config = GetConfig();
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// do we have an encoding for this charset?
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long value = config->Read(charset, -1l);
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if ( value != -1 )
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{
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if ( value == wxFONTENCODING_UNKNOWN )
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{
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// don't try to find it, in particular don't ask the user
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return wxFONTENCODING_SYSTEM;
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}
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if ( value >= 0 && value <= wxFONTENCODING_MAX )
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{
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encoding = (wxFontEncoding)value;
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}
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else
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{
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wxLogDebug(wxT("corrupted config data: invalid encoding %ld for charset '%s' ignored"),
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value, charset.c_str());
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}
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}
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if ( encoding == wxFONTENCODING_SYSTEM )
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{
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// may be we have an alias?
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config->SetPath(FONTMAPPER_CHARSET_ALIAS_PATH);
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wxString alias = config->Read(charset);
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if ( !!alias )
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{
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// yes, we do - use it instead
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cs = alias;
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}
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}
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RestorePath(pathOld);
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}
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#endif // wxUSE_CONFIG
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// if didn't find it there, try to recognize it ourselves
|
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if ( encoding == wxFONTENCODING_SYSTEM )
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{
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// trim any spaces
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cs.Trim(TRUE);
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cs.Trim(FALSE);
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// discard the optional quotes
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if ( !cs.empty() )
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{
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if ( cs[0u] == _T('"') && cs.Last() == _T('"') )
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{
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cs = wxString(cs.c_str(), cs.length() - 1);
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}
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}
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cs.MakeUpper();
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if ( cs.empty() || cs == _T("US-ASCII") )
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{
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encoding = wxFONTENCODING_DEFAULT;
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}
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else if ( cs == wxT("UTF-7") )
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{
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encoding = wxFONTENCODING_UTF7;
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}
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else if ( cs == wxT("UTF-8") )
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{
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encoding = wxFONTENCODING_UTF8;
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}
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else if ( cs == wxT("GB2312") )
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{
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encoding = wxFONTENCODING_GB2312;
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}
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else if ( cs == wxT("BIG5") )
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{
|
|
encoding = wxFONTENCODING_BIG5;
|
|
}
|
|
else if ( cs == wxT("SJIS") ||
|
|
cs == wxT("SHIFT_JIS") ||
|
|
cs == wxT("SHIFT-JIS") )
|
|
{
|
|
encoding = wxFONTENCODING_SHIFT_JIS;
|
|
}
|
|
else if ( cs == wxT("EUC-JP") ||
|
|
cs == wxT("EUC_JP") )
|
|
{
|
|
encoding = wxFONTENCODING_EUC_JP;
|
|
}
|
|
else if ( cs == wxT("KOI8-R") ||
|
|
cs == wxT("KOI8-U") ||
|
|
cs == wxT("KOI8-RU") )
|
|
{
|
|
// although koi8-ru is not strictly speaking the same as koi8-r,
|
|
// they are similar enough to make mapping it to koi8 better than
|
|
// not reckognizing it at all
|
|
encoding = wxFONTENCODING_KOI8;
|
|
}
|
|
else if ( cs.Left(3) == wxT("ISO") )
|
|
{
|
|
// the dash is optional (or, to be exact, it is not, but
|
|
// several brokenmails "forget" it)
|
|
const wxChar *p = cs.c_str() + 3;
|
|
if ( *p == wxT('-') )
|
|
p++;
|
|
|
|
// printf( "iso %s\n", (const char*) cs.ToAscii() );
|
|
|
|
unsigned int value;
|
|
if ( wxSscanf(p, wxT("8859-%u"), &value) == 1 )
|
|
{
|
|
// printf( "value %d\n", (int)value );
|
|
|
|
// make it 0 based and check that it is strictly positive in
|
|
// the process (no such thing as iso8859-0 encoding)
|
|
if ( (value-- > 0) &&
|
|
(value < wxFONTENCODING_ISO8859_MAX -
|
|
wxFONTENCODING_ISO8859_1) )
|
|
{
|
|
// it's a valid ISO8859 encoding
|
|
value += wxFONTENCODING_ISO8859_1;
|
|
encoding = (wxFontEncoding)value;
|
|
}
|
|
}
|
|
}
|
|
else if ( cs.Left(4) == wxT("8859") )
|
|
{
|
|
const wxChar *p = cs.c_str();
|
|
|
|
unsigned int value;
|
|
if ( wxSscanf(p, wxT("8859-%u"), &value) == 1 )
|
|
{
|
|
// printf( "value %d\n", (int)value );
|
|
|
|
// make it 0 based and check that it is strictly positive in
|
|
// the process (no such thing as iso8859-0 encoding)
|
|
if ( (value-- > 0) &&
|
|
(value < wxFONTENCODING_ISO8859_MAX -
|
|
wxFONTENCODING_ISO8859_1) )
|
|
{
|
|
// it's a valid ISO8859 encoding
|
|
value += wxFONTENCODING_ISO8859_1;
|
|
encoding = (wxFontEncoding)value;
|
|
}
|
|
}
|
|
}
|
|
else // check for Windows charsets
|
|
{
|
|
size_t len;
|
|
if ( cs.Left(7) == wxT("WINDOWS") )
|
|
{
|
|
len = 7;
|
|
}
|
|
else if ( cs.Left(2) == wxT("CP") )
|
|
{
|
|
len = 2;
|
|
}
|
|
else // not a Windows encoding
|
|
{
|
|
len = 0;
|
|
}
|
|
|
|
if ( len )
|
|
{
|
|
const wxChar *p = cs.c_str() + len;
|
|
if ( *p == wxT('-') )
|
|
p++;
|
|
|
|
int value;
|
|
if ( wxSscanf(p, wxT("%u"), &value) == 1 )
|
|
{
|
|
if ( value >= 1250 )
|
|
{
|
|
value -= 1250;
|
|
if ( value < wxFONTENCODING_CP12_MAX -
|
|
wxFONTENCODING_CP1250 )
|
|
{
|
|
// a valid Windows code page
|
|
value += wxFONTENCODING_CP1250;
|
|
encoding = (wxFontEncoding)value;
|
|
}
|
|
}
|
|
|
|
switch ( value )
|
|
{
|
|
case 932:
|
|
encoding = wxFONTENCODING_CP932;
|
|
break;
|
|
|
|
case 936:
|
|
encoding = wxFONTENCODING_CP936;
|
|
break;
|
|
|
|
case 949:
|
|
encoding = wxFONTENCODING_CP949;
|
|
break;
|
|
|
|
case 950:
|
|
encoding = wxFONTENCODING_CP950;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
//else: unknown
|
|
}
|
|
|
|
#if wxUSE_GUI
|
|
// if still no luck, ask the user - unless disabled
|
|
if ( (encoding == wxFONTENCODING_SYSTEM) && interactive )
|
|
{
|
|
// prepare the dialog data
|
|
|
|
// the dialog title
|
|
wxString title(m_titleDialog);
|
|
if ( !title )
|
|
title << wxTheApp->GetAppName() << _(": unknown charset");
|
|
|
|
// the message
|
|
wxString msg;
|
|
msg.Printf(_("The charset '%s' is unknown. You may select\nanother charset to replace it with or choose\n[Cancel] if it cannot be replaced"), charset.c_str());
|
|
|
|
// the list of choices
|
|
size_t count = WXSIZEOF(gs_encodingDescs);
|
|
|
|
wxASSERT_MSG( count == WXSIZEOF(gs_encodings),
|
|
wxT("inconsitency detected - forgot to update one of the arrays?") );
|
|
|
|
wxString *encodingNamesTranslated = new wxString[count];
|
|
|
|
for ( size_t i = 0; i < count; i++ )
|
|
{
|
|
encodingNamesTranslated[i] = wxGetTranslation(gs_encodingDescs[i]);
|
|
}
|
|
|
|
// the parent window
|
|
wxWindow *parent = m_windowParent;
|
|
if ( !parent )
|
|
parent = wxTheApp->GetTopWindow();
|
|
|
|
// do ask the user and get back the index in encodings table
|
|
int n = wxGetSingleChoiceIndex(msg, title,
|
|
count,
|
|
encodingNamesTranslated,
|
|
parent);
|
|
|
|
delete [] encodingNamesTranslated;
|
|
|
|
if ( n != -1 )
|
|
{
|
|
encoding = gs_encodings[n];
|
|
}
|
|
|
|
#if wxUSE_CONFIG
|
|
// save the result in the config now
|
|
if ( ChangePath(FONTMAPPER_CHARSET_PATH, &pathOld) )
|
|
{
|
|
wxConfigBase *config = GetConfig();
|
|
|
|
// remember the alt encoding for this charset - or remember that
|
|
// we don't know it
|
|
long value = n == -1 ? wxFONTENCODING_UNKNOWN : (long)encoding;
|
|
if ( !config->Write(charset, value) )
|
|
{
|
|
wxLogError(_("Failed to remember the encoding for the charset '%s'."), charset.c_str());
|
|
}
|
|
|
|
RestorePath(pathOld);
|
|
}
|
|
#endif // wxUSE_CONFIG
|
|
}
|
|
#endif // wxUSE_GUI
|
|
|
|
return encoding;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// support for unknown encodings: we maintain a map between the
|
|
// (platform-specific) strings identifying them and our wxFontEncodings they
|
|
// correspond to which is used by GetFontForEncoding() function
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if wxUSE_GUI
|
|
|
|
bool wxFontMapper::TestAltEncoding(const wxString& configEntry,
|
|
wxFontEncoding encReplacement,
|
|
wxNativeEncodingInfo *info)
|
|
{
|
|
if ( wxGetNativeFontEncoding(encReplacement, info) &&
|
|
wxTestFontEncoding(*info) )
|
|
{
|
|
#if wxUSE_CONFIG
|
|
// remember the mapping in the config
|
|
wxFontMapperPathChanger path(this, FONTMAPPER_FONT_FROM_ENCODING_PATH);
|
|
|
|
if ( path.IsOk() )
|
|
{
|
|
GetConfig()->Write(configEntry, info->ToString());
|
|
}
|
|
#endif // wxUSE_CONFIG
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
#if wxUSE_GUI
|
|
class ReentrancyBlocker
|
|
{
|
|
public:
|
|
ReentrancyBlocker(bool& b) : m_b(b) { m_b = TRUE; }
|
|
~ReentrancyBlocker() { m_b = FALSE; }
|
|
|
|
private:
|
|
bool& m_b;
|
|
};
|
|
#endif
|
|
|
|
bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
|
|
wxNativeEncodingInfo *info,
|
|
const wxString& facename,
|
|
bool interactive)
|
|
{
|
|
#if wxUSE_GUI
|
|
// we need a flag to prevent infinite recursion which happens, for
|
|
// example, when GetAltForEncoding() is called from an OnPaint() handler:
|
|
// in this case, wxYield() which is called from wxMessageBox() we use here
|
|
// will lead to another call of OnPaint() and hence to another call of
|
|
// GetAltForEncoding() - and it is impossible to catch this from the user
|
|
// code because we are called from wxFont ctor implicitly.
|
|
|
|
// assume we're always called from the main thread, so that it is safe to
|
|
// use a static var
|
|
static bool s_inGetAltForEncoding = FALSE;
|
|
|
|
if ( interactive && s_inGetAltForEncoding )
|
|
return FALSE;
|
|
|
|
ReentrancyBlocker blocker(s_inGetAltForEncoding);
|
|
#endif // wxUSE_GUI
|
|
|
|
wxCHECK_MSG( info, FALSE, wxT("bad pointer in GetAltForEncoding") );
|
|
|
|
info->facename = facename;
|
|
|
|
if ( encoding == wxFONTENCODING_DEFAULT )
|
|
{
|
|
encoding = wxFont::GetDefaultEncoding();
|
|
}
|
|
|
|
// if we failed to load the system default encoding, something is really
|
|
// wrong and we'd better stop now - otherwise we will go into endless
|
|
// recursion trying to create the font in the msg box with the error
|
|
// message
|
|
if ( encoding == wxFONTENCODING_SYSTEM )
|
|
{
|
|
wxLogFatalError(_("can't load any font, aborting"));
|
|
|
|
// wxLogFatalError doesn't return
|
|
}
|
|
|
|
wxString configEntry,
|
|
encName = GetEncodingName(encoding);
|
|
if ( !!facename )
|
|
{
|
|
configEntry = facename + _T("_");
|
|
}
|
|
configEntry += encName;
|
|
|
|
#if wxUSE_CONFIG
|
|
// do we have a font spec for this encoding?
|
|
wxString pathOld;
|
|
if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
|
|
{
|
|
wxConfigBase *config = GetConfig();
|
|
|
|
wxString fontinfo = config->Read(configEntry);
|
|
|
|
RestorePath(pathOld);
|
|
|
|
// this special value means that we don't know of fonts for this
|
|
// encoding but, moreover, have already asked the user as well and he
|
|
// didn't specify any font neither
|
|
if ( fontinfo == FONTMAPPER_FONT_DONT_ASK )
|
|
{
|
|
interactive = FALSE;
|
|
}
|
|
else // use the info entered the last time
|
|
{
|
|
if ( !!fontinfo && !!facename )
|
|
{
|
|
// we tried to find a match with facename - now try without it
|
|
fontinfo = config->Read(encName);
|
|
}
|
|
|
|
if ( !!fontinfo )
|
|
{
|
|
if ( info->FromString(fontinfo) )
|
|
{
|
|
if ( wxTestFontEncoding(*info) )
|
|
{
|
|
// ok, got something
|
|
return TRUE;
|
|
}
|
|
//else: no such fonts, look for something else
|
|
// (should we erase the outdated value?)
|
|
}
|
|
else
|
|
{
|
|
wxLogDebug(wxT("corrupted config data: string '%s' is not a valid font encoding info"),
|
|
fontinfo.c_str());
|
|
}
|
|
}
|
|
//else: there is no information in config about this encoding
|
|
}
|
|
}
|
|
#endif // wxUSE_CONFIG
|
|
|
|
// now try to map this encoding to a compatible one which we have on this
|
|
// system
|
|
wxFontEncodingArray equiv = wxEncodingConverter::GetAllEquivalents(encoding);
|
|
size_t count = equiv.GetCount();
|
|
bool foundEquivEncoding = FALSE;
|
|
wxFontEncoding equivEncoding = wxFONTENCODING_SYSTEM;
|
|
if ( count )
|
|
{
|
|
for ( size_t i = 0; i < count && !foundEquivEncoding; i++ )
|
|
{
|
|
// don't test for encoding itself, we already know we don't have it
|
|
if ( equiv[i] == encoding )
|
|
continue;
|
|
|
|
if ( TestAltEncoding(configEntry, equiv[i], info) )
|
|
{
|
|
equivEncoding = equiv[i];
|
|
|
|
foundEquivEncoding = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
// ask the user
|
|
#if wxUSE_FONTDLG
|
|
if ( interactive )
|
|
{
|
|
wxString title(m_titleDialog);
|
|
if ( !title )
|
|
title << wxTheApp->GetAppName() << _(": unknown encoding");
|
|
|
|
// built the message
|
|
wxString encDesc = GetEncodingDescription(encoding),
|
|
msg;
|
|
if ( foundEquivEncoding )
|
|
{
|
|
// ask the user if he wants to override found alternative encoding
|
|
msg.Printf(_("No font for displaying text in encoding '%s' found,\nbut an alternative encoding '%s' is available.\nDo you want to use this encoding (otherwise you will have to choose another one)?"),
|
|
encDesc.c_str(), GetEncodingDescription(equivEncoding).c_str());
|
|
}
|
|
else
|
|
{
|
|
msg.Printf(_("No font for displaying text in encoding '%s' found.\nWould you like to select a font to be used for this encoding\n(otherwise the text in this encoding will not be shown correctly)?"),
|
|
encDesc.c_str());
|
|
}
|
|
|
|
// the question is different in 2 cases so the answer has to be
|
|
// interpreted differently as well
|
|
int answer = foundEquivEncoding ? wxNO : wxYES;
|
|
|
|
if ( wxMessageBox(msg, title,
|
|
wxICON_QUESTION | wxYES_NO,
|
|
m_windowParent) == answer )
|
|
{
|
|
wxFontData data;
|
|
data.SetEncoding(encoding);
|
|
data.EncodingInfo() = *info;
|
|
wxFontDialog dialog(m_windowParent, data);
|
|
if ( dialog.ShowModal() == wxID_OK )
|
|
{
|
|
wxFontData retData = dialog.GetFontData();
|
|
wxFont font = retData.GetChosenFont();
|
|
|
|
*info = retData.EncodingInfo();
|
|
info->encoding = retData.GetEncoding();
|
|
|
|
#if wxUSE_CONFIG
|
|
// remember this in the config
|
|
if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
|
|
{
|
|
GetConfig()->Write(configEntry, info->ToString());
|
|
|
|
RestorePath(pathOld);
|
|
}
|
|
#endif // wxUSE_CONFIG
|
|
|
|
return TRUE;
|
|
}
|
|
//else: the user canceled the font selection dialog
|
|
}
|
|
else
|
|
{
|
|
// the user doesn't want to select a font for this encoding
|
|
// or selected to use equivalent encoding
|
|
//
|
|
// remember it to avoid asking the same question again later
|
|
#if wxUSE_CONFIG
|
|
if ( ChangePath(FONTMAPPER_FONT_FROM_ENCODING_PATH, &pathOld) )
|
|
{
|
|
GetConfig()->Write
|
|
(
|
|
configEntry,
|
|
foundEquivEncoding ? info->ToString().c_str()
|
|
: FONTMAPPER_FONT_DONT_ASK
|
|
);
|
|
|
|
RestorePath(pathOld);
|
|
}
|
|
#endif // wxUSE_CONFIG
|
|
}
|
|
}
|
|
//else: we're in non-interactive mode
|
|
#endif // wxUSE_FONTDLG
|
|
|
|
return foundEquivEncoding;
|
|
}
|
|
|
|
bool wxFontMapper::GetAltForEncoding(wxFontEncoding encoding,
|
|
wxFontEncoding *alt_encoding,
|
|
const wxString& facename,
|
|
bool interactive)
|
|
{
|
|
wxNativeEncodingInfo info;
|
|
bool r = GetAltForEncoding(encoding, &info, facename, interactive);
|
|
*alt_encoding = info.encoding;
|
|
return r;
|
|
}
|
|
|
|
bool wxFontMapper::IsEncodingAvailable(wxFontEncoding encoding,
|
|
const wxString& facename)
|
|
{
|
|
wxNativeEncodingInfo info;
|
|
|
|
if (wxGetNativeFontEncoding(encoding, &info))
|
|
{
|
|
info.facename = facename;
|
|
return wxTestFontEncoding(info);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
#endif // wxUSE_GUI
|
|
|
|
#endif // wxUSE_FONTMAP
|