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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <vcl/embeddedfontshelper.hxx>
#include <osl/file.hxx>
#include <rtl/bootstrap.hxx>
#include <vcl/outdev.hxx>
#include <vcl/svapp.hxx>
#include <boost/scoped_ptr.hpp>
#include <fontsubset.hxx>
#include <outdev.h>
#include <outfont.hxx>
#include <salgdi.hxx>
static void clearDir( const OUString& path )
{
osl::Directory dir( path );
if( dir.reset() == osl::Directory::E_None )
{
for(;;)
{
osl::DirectoryItem item;
if( dir.getNextItem( item ) != osl::Directory::E_None )
break;
osl::FileStatus status( osl_FileStatus_Mask_FileURL );
if( item.getFileStatus( status ) == osl::File::E_None )
osl::File::remove( status.getFileURL());
}
}
}
void EmbeddedFontsHelper::clearTemporaryFontFiles()
{
OUString path = "${$BRAND_BASE_DIR/program/" SAL_CONFIGFILE( "bootstrap") "::UserInstallation}";
rtl::Bootstrap::expandMacros( path );
path += "/user/temp/embeddedfonts/";
clearDir( path + "fromdocs/" );
clearDir( path + "fromsystem/" );
}
OUString EmbeddedFontsHelper::fileUrlForTemporaryFont( const OUString& fontName, const char* fontStyle )
{
OUString path = "${$BRAND_BASE_DIR/program/" SAL_CONFIGFILE( "bootstrap") "::UserInstallation}";
rtl::Bootstrap::expandMacros( path );
path += "/user/temp/embeddedfonts/fromdocs/";
osl::Directory::createPath( path );
OUString filename = fontName;
filename += OStringToOUString( fontStyle, RTL_TEXTENCODING_ASCII_US );
filename += ".ttf"; // TODO is it always ttf?
return path + filename;
}
void EmbeddedFontsHelper::activateFont( const OUString& fontName, const OUString& fileUrl )
{
OutputDevice *pDevice = Application::GetDefaultDevice();
pDevice->AddTempDevFont( fileUrl, fontName );
pDevice->ImplUpdateAllFontData( true );
}
OUString EmbeddedFontsHelper::fontFileUrl( const OUString& familyName, FontFamily family, FontItalic italic,
FontWeight weight, FontPitch pitch, rtl_TextEncoding )
{
OUString path = "${$BRAND_BASE_DIR/program/" SAL_CONFIGFILE( "bootstrap") "::UserInstallation}";
rtl::Bootstrap::expandMacros( path );
path += "/user/temp/embeddedfonts/fromsystem/";
osl::Directory::createPath( path );
OUString filename = familyName + "_" + OUString::number( family ) + "_" + OUString::number( italic )
+ "_" + OUString::number( weight ) + "_" + OUString::number( pitch );
filename += ".ttf"; // TODO is it always ttf?
OUString url = path + filename;
if( osl::File( url ).open( osl_File_OpenFlag_Read ) == osl::File::E_None ) // = exists()
{
// File with contents of the font file already exists, assume it's been created by a previous call.
return url;
}
bool ok = false;
SalGraphics* graphics = Application::GetDefaultDevice()->ImplGetGraphics();
ImplDevFontList fonts;
graphics->GetDevFontList( &fonts );
boost::scoped_ptr< ImplGetDevFontList > fontInfo( fonts.GetDevFontList());
PhysicalFontFace* selected = NULL;
for( int i = 0;
i < fontInfo->Count();
++i )
{
PhysicalFontFace* f = fontInfo->Get( i );
if( f->GetFamilyName() == familyName )
{
// Ignore comparing text encodings, at least for now. They cannot be trivially compared
// (e.g. UCS2 and UTF8 are technically the same characters, just have different encoding,
// and just having a unicode font doesn't say what glyphs it actually contains).
// It is possible that it still may be needed to do at least some checks here
// for some encodings (can one font have more font files for more encodings?).
if(( family == FAMILY_DONTKNOW || f->GetFamilyType() == family )
&& ( italic == ITALIC_DONTKNOW || f->GetSlant() == italic )
&& ( weight == WEIGHT_DONTKNOW || f->GetWeight() == weight )
&& ( pitch == PITCH_DONTKNOW || f->GetPitch() == pitch ))
{ // Exact match, return it immediately.
selected = f;
break;
}
if(( f->GetFamilyType() == FAMILY_DONTKNOW || family == FAMILY_DONTKNOW || f->GetFamilyType() == family )
&& ( f->GetSlant() == ITALIC_DONTKNOW || italic == ITALIC_DONTKNOW || f->GetSlant() == italic )
&& ( f->GetWeight() == WEIGHT_DONTKNOW || weight == WEIGHT_DONTKNOW || f->GetWeight() == weight )
&& ( f->GetPitch() == PITCH_DONTKNOW || pitch == PITCH_DONTKNOW || f->GetPitch() == pitch ))
{ // Some fonts specify 'DONTKNOW' for some things, still a good match, if we don't find a better one.
selected = f;
}
}
}
if( selected != NULL )
{
sal_Ucs unicodes[ 256 ];
for( int i = 0;
i < 256;
++i )
unicodes[ i ] = 'A'; // Just something, not needed, but GetEmbedFontData() needs it.
sal_Int32 widths[ 256 ];
FontSubsetInfo info;
long size;
if( const void* data = graphics->GetEmbedFontData( selected, unicodes, widths, info, &size ))
{
osl::File file( url );
if( file.open( osl_File_OpenFlag_Write | osl_File_OpenFlag_Create ) == osl::File::E_None )
{
sal_uInt64 written = 0;
sal_uInt64 totalSize = size;
bool error = false;
while( written < totalSize && !error)
{
sal_uInt64 nowWritten;
switch( file.write( static_cast< const char* >( data ) + written, size - written, nowWritten ))
{
case osl::File::E_None:
written += nowWritten;
break;
case osl::File::E_AGAIN:
case osl::File::E_INTR:
break;
default:
error = true;
break;
}
}
file.close();
if( error )
osl::File::remove( url );
else
ok = true;
}
graphics->FreeEmbedFontData( data, size );
}
}
return ok ? url : "";
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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