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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
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 :
21 : #include <boost/current_function.hpp>
22 : #include <canvas/canvastools.hxx>
23 :
24 : #include <comphelper/anytostring.hxx>
25 : #include <cppuhelper/exc_hlp.hxx>
26 :
27 : #include <basegfx/point/b2dpoint.hxx>
28 : #include <basegfx/vector/b2dvector.hxx>
29 :
30 : #include <com/sun/star/rendering/XCanvas.hpp>
31 : #include <com/sun/star/presentation/XSlideShowView.hpp>
32 :
33 : #include "pointersymbol.hxx"
34 : #include "eventmultiplexer.hxx"
35 :
36 : #include <o3tl/compat_functional.hxx>
37 : #include <algorithm>
38 :
39 :
40 : using namespace com::sun::star;
41 :
42 : namespace slideshow {
43 : namespace internal {
44 :
45 0 : PointerSymbolSharedPtr PointerSymbol::create( const uno::Reference<rendering::XBitmap>& xBitmap,
46 : ScreenUpdater& rScreenUpdater,
47 : EventMultiplexer& rEventMultiplexer,
48 : const UnoViewContainer& rViewContainer )
49 : {
50 : PointerSymbolSharedPtr pRet(
51 : new PointerSymbol( xBitmap,
52 : rScreenUpdater,
53 0 : rViewContainer ));
54 :
55 0 : rEventMultiplexer.addViewHandler( pRet );
56 :
57 0 : return pRet;
58 : }
59 :
60 0 : PointerSymbol::PointerSymbol( uno::Reference<rendering::XBitmap> const & xBitmap,
61 : ScreenUpdater& rScreenUpdater,
62 : const UnoViewContainer& rViewContainer ) :
63 : mxBitmap(xBitmap),
64 : maViews(),
65 : mrScreenUpdater( rScreenUpdater ),
66 : maPos(),
67 0 : mbVisible(false)
68 : {
69 : std::for_each( rViewContainer.begin(),
70 : rViewContainer.end(),
71 : boost::bind( &PointerSymbol::viewAdded,
72 : this,
73 0 : _1 ));
74 0 : }
75 :
76 0 : void PointerSymbol::setVisible( const bool bVisible )
77 : {
78 0 : if( mbVisible != bVisible )
79 : {
80 0 : mbVisible = bVisible;
81 :
82 0 : ViewsVecT::const_iterator aIter( maViews.begin() );
83 0 : ViewsVecT::const_iterator const aEnd ( maViews.end() );
84 0 : while( aIter != aEnd )
85 : {
86 0 : if( aIter->second )
87 : {
88 0 : if( bVisible )
89 0 : aIter->second->show();
90 : else
91 0 : aIter->second->hide();
92 : }
93 :
94 0 : ++aIter;
95 : }
96 :
97 : // sprites changed, need a screen update for this frame.
98 0 : mrScreenUpdater.requestImmediateUpdate();
99 : }
100 0 : }
101 :
102 0 : basegfx::B2DPoint PointerSymbol::calcSpritePos(UnoViewSharedPtr const & rView) const
103 : {
104 0 : const awt::Rectangle aViewArea( rView->getUnoView()->getCanvasArea() );
105 0 : const geometry::IntegerSize2D realTranslationOffset ( rView->getTranslationOffset() );
106 :
107 : return basegfx::B2DPoint(
108 0 : realTranslationOffset.Width + ((aViewArea.Width - aViewArea.X) - 2 * realTranslationOffset.Width) * maPos.X,
109 0 : realTranslationOffset.Height + ((aViewArea.Height - aViewArea.Y) - 2 * realTranslationOffset.Height) * maPos.Y);
110 : }
111 :
112 0 : void PointerSymbol::viewAdded( const UnoViewSharedPtr& rView )
113 : {
114 0 : cppcanvas::CustomSpriteSharedPtr sprite;
115 :
116 : try
117 : {
118 0 : const geometry::IntegerSize2D spriteSize( mxBitmap->getSize() );
119 0 : sprite = rView->createSprite( basegfx::B2DVector( spriteSize.Width,
120 : spriteSize.Height ),
121 0 : 1000.0 ); // sprite should be in front of all
122 : // other sprites
123 0 : rendering::ViewState viewState;
124 0 : canvas::tools::initViewState( viewState );
125 0 : rendering::RenderState renderState;
126 0 : canvas::tools::initRenderState( renderState );
127 0 : sprite->getContentCanvas()->getUNOCanvas()->drawBitmap(
128 0 : mxBitmap, viewState, renderState );
129 :
130 0 : sprite->setAlpha( 0.9 );
131 0 : sprite->movePixel( calcSpritePos( rView ) );
132 0 : if( mbVisible )
133 0 : sprite->show();
134 : }
135 0 : catch( uno::Exception& )
136 : {
137 : OSL_FAIL( OUStringToOString(
138 : comphelper::anyToString( cppu::getCaughtException() ),
139 : RTL_TEXTENCODING_UTF8 ).getStr() );
140 : }
141 :
142 0 : maViews.push_back( ViewsVecT::value_type( rView, sprite ) );
143 0 : }
144 :
145 0 : void PointerSymbol::viewRemoved( const UnoViewSharedPtr& rView )
146 : {
147 : maViews.erase(
148 : std::remove_if(
149 : maViews.begin(), maViews.end(),
150 : boost::bind(
151 : std::equal_to<UnoViewSharedPtr>(),
152 : rView,
153 : // select view:
154 : boost::bind( o3tl::select1st<ViewsVecT::value_type>(), _1 ) ) ),
155 0 : maViews.end() );
156 0 : }
157 :
158 0 : void PointerSymbol::viewChanged( const UnoViewSharedPtr& rView )
159 : {
160 : // find entry corresponding to modified view
161 : ViewsVecT::iterator aModifiedEntry(
162 : std::find_if(
163 : maViews.begin(),
164 : maViews.end(),
165 : boost::bind(
166 : std::equal_to<UnoViewSharedPtr>(),
167 : rView,
168 : // select view:
169 0 : boost::bind( o3tl::select1st<ViewsVecT::value_type>(), _1 ))));
170 :
171 : OSL_ASSERT( aModifiedEntry != maViews.end() );
172 0 : if( aModifiedEntry == maViews.end() )
173 0 : return;
174 :
175 0 : if( aModifiedEntry->second )
176 0 : aModifiedEntry->second->movePixel(
177 0 : calcSpritePos(aModifiedEntry->first) );
178 : }
179 :
180 0 : void PointerSymbol::viewsChanged()
181 : {
182 : // reposition sprites on all views
183 0 : ViewsVecT::const_iterator aIter( maViews.begin() );
184 0 : ViewsVecT::const_iterator const aEnd ( maViews.end() );
185 0 : while( aIter != aEnd )
186 : {
187 0 : if( aIter->second )
188 0 : aIter->second->movePixel(
189 0 : calcSpritePos( aIter->first ));
190 0 : ++aIter;
191 : }
192 0 : }
193 :
194 0 : void PointerSymbol::viewsChanged(const geometry::RealPoint2D pos)
195 : {
196 0 : if( pos.X != maPos.X || pos.Y != maPos.Y )
197 : {
198 0 : maPos = pos;
199 :
200 : // reposition sprites on all views
201 0 : ViewsVecT::const_iterator aIter( maViews.begin() );
202 0 : ViewsVecT::const_iterator const aEnd ( maViews.end() );
203 0 : while( aIter != aEnd )
204 : {
205 0 : if( aIter->second )
206 : {
207 0 : aIter->second->movePixel(
208 0 : calcSpritePos( aIter->first ));
209 0 : mrScreenUpdater.notifyUpdate();
210 0 : mrScreenUpdater.commitUpdates();
211 : }
212 0 : ++aIter;
213 : }
214 : }
215 0 : }
216 :
217 : } // namespace internal
218 0 : } // namespace slideshow
219 :
220 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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