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::awt;
  38 using namespace ::com::sun::star::uno;
  39 using namespace ::com::sun::star::beans;
  40 using namespace ::com::sun::star::lang;
  41 using namespace ::com::sun::star::frame;
  42 using namespace ::com::sun::star::util;
  43
  44 const ::Size  aImageSizeSmall( 16, 16 );
  45 const ::Size  aImageSizeBig( 26, 26 );
  46
  47 namespace framework
  48 {
  49
  50 static void SubstituteVariables( OUString& aURL )
  51 {
  52     aURL = comphelper::getExpandedUri(
  53         comphelper::getProcessComponentContext(), aURL);
  54 }
  55
  56 ImageButtonToolbarController::ImageButtonToolbarController(
  57     const Reference< XComponentContext >&    rxContext,
  58     const Reference< XFrame >&               rFrame,
  59     ToolBox*                                 pToolbar,
  60     ToolBoxItemId                            nID,
  61     const OUString&                          aCommand ) :
  62     ComplexToolbarController( rxContext, rFrame, pToolbar, nID, aCommand )
  63 {
  64     bool bBigImages( SvtMiscOptions::AreCurrentSymbolsLarge() );
  65
  66     Image aImage(AddonsOptions().GetImageFromURL(aCommand, bBigImages, true));
  67
  68     // Height will be controlled by scaling according to button height
  69     m_xToolbar->SetItemImage( m_nID, aImage );
  70 }
  71
  72 ImageButtonToolbarController::~ImageButtonToolbarController()
  73 {
  74 }
  75
  76 void SAL_CALL ImageButtonToolbarController::dispose()
  77 {
  78     SolarMutexGuard aSolarMutexGuard;
  79     ComplexToolbarController::dispose();
  80 }
  81
  82 void ImageButtonToolbarController::executeControlCommand( const css::frame::ControlCommand& rControlCommand )
  83 {
  84     SolarMutexGuard aSolarMutexGuard;
  85     // i73486 to be downward compatible use old and "wrong" also!
  86     if( rControlCommand.Command != "SetImag" &&
  87         rControlCommand.Command != "SetImage" )
  88         return;
  89
  90     for ( const NamedValue& rArg : rControlCommand.Arguments )
  91     {
  92         if ( rArg.Name == "URL" )
  93         {
  94             OUString aURL;
  95             rArg.Value >>= aURL;
  96
  97             SubstituteVariables( aURL );
  98
  99             Image aImage;
 100             if ( ReadImageFromURL( SvtMiscOptions::AreCurrentSymbolsLarge(),
 101                                    aURL,
 102                                    aImage ))
 103             {
 104                 m_xToolbar->SetItemImage( m_nID, aImage );
 105
 106                 // send notification
 107                 uno::Sequence< beans::NamedValue > aInfo { { "URL", css::uno::Any(aURL) } };
 108                 addNotifyInfo( "ImageChanged",
 109                             getDispatchFromCommand( m_aCommandURL ),
 110                             aInfo );
 111                 break;
 112             }
 113         }
 114     }
 115 }
 116
 117 bool ImageButtonToolbarController::ReadImageFromURL( bool bBigImage, const OUString& aImageURL, Image& aImage )
 118 {
 119     std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream( aImageURL, StreamMode::STD_READ ));
 120     if ( !pStream || ( pStream->GetErrorCode() != ERRCODE_NONE ))
 121         return false;
 122
 123     // Use graphic class to also support more graphic formats (bmp,png,...)
 124     Graphic aGraphic;
 125
 126     GraphicFilter& rGF = GraphicFilter::GetGraphicFilter();
 127     rGF.ImportGraphic( aGraphic, u"", *pStream );
 128
 129     BitmapEx aBitmapEx = aGraphic.GetBitmapEx();
 130
 131     const ::Size aSize = bBigImage ? aImageSizeBig : aImageSizeSmall; // Sizes used for toolbar images
 132
 133     ::Size aBmpSize = aBitmapEx.GetSizePixel();
 134     if ( !aBmpSize.IsEmpty() )
 135     {
 136         ::Size aNoScaleSize( aBmpSize.Width(), aSize.Height() );
 137         if ( aBmpSize != aNoScaleSize )
 138             aBitmapEx.Scale( aNoScaleSize, BmpScaleFlag::BestQuality );
 139         aImage = Image( aBitmapEx );
 140         return true;
 141     }
 142
 143     return false;
 144 }
 145
 146 } // namespace
 147
 148 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */