LibreOffice Module vcl (master)  1
brand.cxx
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3  * This file is part of the LibreOffice project.
4  *
5  * This Source Code Form is subject to the terms of the Mozilla Public
6  * License, v. 2.0. If a copy of the MPL was not distributed with this
7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8  *
9  * This file incorporates work covered by the following license notice:
10  *
11  * Licensed to the Apache Software Foundation (ASF) under one or more
12  * contributor license agreements. See the NOTICE file distributed
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15  * License, Version 2.0 (the "License"); you may not use this file
16  * except in compliance with the License. You may obtain a copy of
17  * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18  */
19 
20 #include <sal/config.h>
21 
22 #include <string_view>
23 
24 #include <config_folders.h>
25 
26 #include <rtl/ustring.hxx>
27 #include <rtl/bootstrap.hxx>
28 #include <osl/process.h>
29 #include <tools/urlobj.hxx>
30 #include <tools/stream.hxx>
33 #include <vcl/bitmapex.hxx>
34 #include <vcl/svapp.hxx>
35 
36 namespace {
37  bool loadPng( const OUString & rPath, BitmapEx &rBitmap)
38  {
39  INetURLObject aObj( rPath );
40  SvFileStream aStrm( aObj.PathToFileName(), StreamMode::STD_READ );
41  if ( !aStrm.GetError() ) {
42  vcl::PngImageReader aReader( aStrm );
43  rBitmap = aReader.read();
44  return !rBitmap.IsEmpty();
45  }
46  else
47  return false;
48  }
49  bool tryLoadPng( std::u16string_view rBaseDir, std::u16string_view rName, BitmapEx& rBitmap )
50  {
51  return loadPng( OUString::Concat(rBaseDir) + "/" LIBO_ETC_FOLDER + rName, rBitmap);
52  }
53 }
54 
55 bool Application::LoadBrandBitmap (const char* pName, BitmapEx &rBitmap)
56 {
57  // TODO - if we want more flexibility we could add a branding path
58  // in an rc file perhaps fallback to "about.bmp"
59  OUString aBaseDir( "$BRAND_BASE_DIR");
60  rtl::Bootstrap::expandMacros( aBaseDir );
61  OUString aBaseName( "/" + OUString::createFromAscii( pName ) );
62  OUString aPng( ".png" );
63 
64  rtl_Locale *pLoc = nullptr;
65  osl_getProcessLocale (&pLoc);
66  LanguageTag aLanguageTag( *pLoc);
67 
68  ::std::vector< OUString > aFallbacks( aLanguageTag.getFallbackStrings( true));
69  for (const OUString & aFallback : aFallbacks)
70  {
71  if (tryLoadPng( aBaseDir, OUStringConcatenation(aBaseName + "-" + aFallback + aPng), rBitmap))
72  return true;
73  }
74 
75  return tryLoadPng( aBaseDir, OUStringConcatenation(aBaseName + aPng), rBitmap);
76 }
77 
78 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
bool IsEmpty() const
Definition: BitmapEx.cxx:177
sal_uInt16 char * pName
::std::vector< OUString > getFallbackStrings(bool bIncludeFullBcp47) const
static bool LoadBrandBitmap(const char *pName, BitmapEx &rBitmap)
Load a localized branding PNG file as a bitmap.
Definition: brand.cxx:55