framework/source/uielement/imagebuttontoolbarcontroller.cxx

   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
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  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 <uielement/imagebuttontoolbarcontroller.hxx>
  21
  22 #include <framework/addonsoptions.hxx>
  23
  24 #include <com/sun/star/uno/XComponentContext.hpp>
  25
  26 #include <comphelper/getexpandeduri.hxx>
  27 #include <comphelper/processfactory.hxx>
  28 #include <unotools/ucbstreamhelper.hxx>
  29 #include <vcl/svapp.hxx>
  30 #include <vcl/graph.hxx>
  31 #include <vcl/graphicfilter.hxx>
  32 #include <vcl/toolbox.hxx>
  33 #include <svtools/miscopt.hxx>
  34 #include <memory>
  35
  36 using namespace ::com::sun::star;
  37 using namespace ::com::sun::star::uno;
  38 using namespace ::com::sun::star::beans;
  39 using namespace ::com::sun::star::frame;
  40
  41 const ::Size  aImageSizeSmall( 16, 16 );
  42 const ::Size  aImageSizeBig( 26, 26 );
  43
  44 namespace framework
  45 {
  46
  47 static void SubstituteVariables( OUString& aURL )
  48 {
  49     aURL = comphelper::getExpandedUri(
  50         comphelper::getProcessComponentContext(), aURL);
  51 }
  52
  53 ImageButtonToolbarController::ImageButtonToolbarController(
  54     const Reference< XComponentContext >&    rxContext,
  55     const Reference< XFrame >&               rFrame,
  56     ToolBox*                                 pToolbar,
  57     ToolBoxItemId                            nID,
  58     const OUString&                          aCommand ) :
  59     ComplexToolbarController( rxContext, rFrame, pToolbar, nID, aCommand )
  60 {
  61     bool bBigImages( SvtMiscOptions::AreCurrentSymbolsLarge() );
  62
  63     Image aImage(AddonsOptions().GetImageFromURL(aCommand, bBigImages, true));
  64
  65     // Height will be controlled by scaling according to button height
  66     m_xToolbar->SetItemImage( m_nID, aImage );
  67 }
  68
  69 ImageButtonToolbarController::~ImageButtonToolbarController()
  70 {
  71 }
  72
  73 void SAL_CALL ImageButtonToolbarController::dispose()
  74 {
  75     SolarMutexGuard aSolarMutexGuard;
  76     ComplexToolbarController::dispose();
  77 }
  78
  79 void ImageButtonToolbarController::executeControlCommand( const css::frame::ControlCommand& rControlCommand )
  80 {
  81     SolarMutexGuard aSolarMutexGuard;
  82     // i73486 to be downward compatible use old and "wrong" also!
  83     if( rControlCommand.Command != "SetImag" &&
  84         rControlCommand.Command != "SetImage" )
  85         return;
  86
  87     for ( const NamedValue& rArg : rControlCommand.Arguments )
  88     {
  89         if ( rArg.Name == "URL" )
  90         {
  91             OUString aURL;
  92             rArg.Value >>= aURL;
  93
  94             SubstituteVariables( aURL );
  95
  96             Image aImage;
  97             if ( ReadImageFromURL( SvtMiscOptions::AreCurrentSymbolsLarge(),
  98                                    aURL,
  99                                    aImage ))
 100             {
 101                 m_xToolbar->SetItemImage( m_nID, aImage );
 102
 103                 // send notification
 104                 uno::Sequence< beans::NamedValue > aInfo { { u"URL"_ustr, css::uno::Any(aURL) } };
 105                 addNotifyInfo( u"ImageChanged"_ustr,
 106                             getDispatchFromCommand( m_aCommandURL ),
 107                             aInfo );
 108                 break;
 109             }
 110         }
 111     }
 112 }
 113
 114 // static
 115 bool ImageButtonToolbarController::ReadImageFromURL( bool bBigImage, const OUString& aImageURL, Image& aImage )
 116 {
 117     std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream( aImageURL, StreamMode::STD_READ ));
 118     if ( !pStream || ( pStream->GetErrorCode() != ERRCODE_NONE ))
 119         return false;
 120
 121     // Use graphic class to also support more graphic formats (bmp,png,...)
 122     Graphic aGraphic;
 123
 124     GraphicFilter& rGF = GraphicFilter::GetGraphicFilter();
 125     rGF.ImportGraphic( aGraphic, u"", *pStream );
 126
 127     BitmapEx aBitmapEx = aGraphic.GetBitmapEx();
 128
 129     const ::Size aSize = bBigImage ? aImageSizeBig : aImageSizeSmall; // Sizes used for toolbar images
 130
 131     ::Size aBmpSize = aBitmapEx.GetSizePixel();
 132     if ( !aBmpSize.IsEmpty() )
 133     {
 134         ::Size aNoScaleSize( aBmpSize.Width(), aSize.Height() );
 135         if ( aBmpSize != aNoScaleSize )
 136             aBitmapEx.Scale( aNoScaleSize, BmpScaleFlag::BestQuality );
 137         aImage = Image( aBitmapEx );
 138         return true;
 139     }
 140
 141     return false;
 142 }
 143
 144 } // namespace
 145
 146 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */