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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 : // must be first
22 : #include <canvas/debug.hxx>
23 :
24 : #include <com/sun/star/awt/Rectangle.hpp>
25 : #include <com/sun/star/beans/XPropertySet.hpp>
26 : #include <com/sun/star/awt/FontWeight.hpp>
27 :
28 : #include <vcl/metaact.hxx>
29 : #include <vcl/gdimtf.hxx>
30 :
31 : #include <basegfx/numeric/ftools.hxx>
32 :
33 : #include <boost/bind.hpp>
34 :
35 : #include <cmath>
36 : #include <algorithm>
37 : #include <functional>
38 : #include <limits>
39 :
40 : #include "backgroundshape.hxx"
41 : #include "slideshowexceptions.hxx"
42 : #include "slideshowcontext.hxx"
43 : #include "gdimtftools.hxx"
44 : #include "shape.hxx"
45 : #include "viewbackgroundshape.hxx"
46 :
47 :
48 : using namespace ::com::sun::star;
49 :
50 :
51 : namespace slideshow
52 : {
53 : namespace internal
54 : {
55 : /** Representation of a draw document's background shape.
56 :
57 : This class implements the Shape interface for the
58 : background shape. Since the background shape is neither
59 : animatable nor attributable, those more specialized
60 : derivations of the Shape interface are not implemented
61 : here.
62 :
63 : @attention this class is to be treated 'final', i.e. one
64 : should not derive from it.
65 : */
66 0 : class BackgroundShape : public Shape
67 : {
68 : public:
69 : /** Create the background shape.
70 :
71 : This method creates a shape that handles the
72 : peculiarities of the draw API regarding background
73 : content.
74 : */
75 : BackgroundShape( const ::com::sun::star::uno::Reference<
76 : ::com::sun::star::drawing::XDrawPage >& xDrawPage,
77 : const ::com::sun::star::uno::Reference<
78 : ::com::sun::star::drawing::XDrawPage >& xMasterPage,
79 : const SlideShowContext& rContext ); // throw ShapeLoadFailedException;
80 :
81 : virtual ::com::sun::star::uno::Reference<
82 : ::com::sun::star::drawing::XShape > getXShape() const SAL_OVERRIDE;
83 :
84 : // View layer methods
85 :
86 :
87 : virtual void addViewLayer( const ViewLayerSharedPtr& rNewLayer,
88 : bool bRedrawLayer ) SAL_OVERRIDE;
89 : virtual bool removeViewLayer( const ViewLayerSharedPtr& rNewLayer ) SAL_OVERRIDE;
90 : virtual bool clearAllViewLayers() SAL_OVERRIDE;
91 :
92 :
93 : // attribute methods
94 :
95 :
96 : virtual ::basegfx::B2DRectangle getBounds() const SAL_OVERRIDE;
97 : virtual ::basegfx::B2DRectangle getDomBounds() const SAL_OVERRIDE;
98 : virtual ::basegfx::B2DRectangle getUpdateArea() const SAL_OVERRIDE;
99 : virtual bool isVisible() const SAL_OVERRIDE;
100 : virtual double getPriority() const SAL_OVERRIDE;
101 : virtual bool isBackgroundDetached() const SAL_OVERRIDE;
102 :
103 :
104 : // render methods
105 :
106 :
107 : virtual bool update() const SAL_OVERRIDE;
108 : virtual bool render() const SAL_OVERRIDE;
109 : virtual bool isContentChanged() const SAL_OVERRIDE;
110 :
111 : private:
112 : /// The metafile actually representing the Shape
113 : GDIMetaFileSharedPtr mpMtf;
114 :
115 : // The attributes of this Shape
116 : ::basegfx::B2DRectangle maBounds; // always needed for rendering
117 :
118 : /// the list of active view shapes (one for each registered view layer)
119 : typedef ::std::vector< ViewBackgroundShapeSharedPtr > ViewBackgroundShapeVector;
120 : ViewBackgroundShapeVector maViewShapes;
121 : };
122 :
123 :
124 :
125 :
126 :
127 0 : BackgroundShape::BackgroundShape( const uno::Reference< drawing::XDrawPage >& xDrawPage,
128 : const uno::Reference< drawing::XDrawPage >& xMasterPage,
129 : const SlideShowContext& rContext ) :
130 : mpMtf(),
131 : maBounds(),
132 0 : maViewShapes()
133 : {
134 : uno::Reference< beans::XPropertySet > xPropSet( xDrawPage,
135 0 : uno::UNO_QUERY_THROW );
136 0 : GDIMetaFileSharedPtr pMtf( new GDIMetaFile() );
137 :
138 : // first try the page background (overrides
139 : // masterpage background), then try masterpage
140 0 : if( !getMetaFile( uno::Reference<lang::XComponent>(xDrawPage, uno::UNO_QUERY),
141 0 : xDrawPage, *pMtf, MTF_LOAD_BACKGROUND_ONLY,
142 0 : rContext.mxComponentContext ) &&
143 : !getMetaFile( uno::Reference<lang::XComponent>(xMasterPage, uno::UNO_QUERY),
144 0 : xDrawPage, *pMtf, MTF_LOAD_BACKGROUND_ONLY,
145 0 : rContext.mxComponentContext ))
146 : {
147 0 : throw ShapeLoadFailedException();
148 : }
149 :
150 : // there is a special background shape, add it
151 : // as the first one
152 :
153 :
154 0 : sal_Int32 nDocWidth=0;
155 0 : sal_Int32 nDocHeight=0;
156 0 : xPropSet->getPropertyValue("Width") >>= nDocWidth;
157 0 : xPropSet->getPropertyValue("Height") >>= nDocHeight;
158 :
159 0 : mpMtf = pMtf;
160 0 : maBounds = ::basegfx::B2DRectangle( 0,0,nDocWidth, nDocHeight );
161 0 : }
162 :
163 0 : uno::Reference< drawing::XShape > BackgroundShape::getXShape() const
164 : {
165 : // no real XShape representative
166 0 : return uno::Reference< drawing::XShape >();
167 : }
168 :
169 0 : void BackgroundShape::addViewLayer( const ViewLayerSharedPtr& rNewLayer,
170 : bool bRedrawLayer )
171 : {
172 0 : ViewBackgroundShapeVector::iterator aEnd( maViewShapes.end() );
173 :
174 : // already added?
175 0 : if( ::std::find_if( maViewShapes.begin(),
176 : aEnd,
177 : ::boost::bind<bool>(
178 : ::std::equal_to< ViewLayerSharedPtr >(),
179 : ::boost::bind( &ViewBackgroundShape::getViewLayer,
180 : _1 ),
181 0 : ::boost::cref( rNewLayer ) ) ) != aEnd )
182 : {
183 : // yes, nothing to do
184 0 : return;
185 : }
186 :
187 : maViewShapes.push_back(
188 : ViewBackgroundShapeSharedPtr(
189 : new ViewBackgroundShape( rNewLayer,
190 0 : maBounds ) ) );
191 :
192 : // render the Shape on the newly added ViewLayer
193 0 : if( bRedrawLayer )
194 0 : maViewShapes.back()->render( mpMtf );
195 : }
196 :
197 0 : bool BackgroundShape::removeViewLayer( const ViewLayerSharedPtr& rLayer )
198 : {
199 0 : const ViewBackgroundShapeVector::iterator aEnd( maViewShapes.end() );
200 :
201 : OSL_ENSURE( ::std::count_if(maViewShapes.begin(),
202 : aEnd,
203 : ::boost::bind<bool>(
204 : ::std::equal_to< ViewLayerSharedPtr >(),
205 : ::boost::bind( &ViewBackgroundShape::getViewLayer,
206 : _1 ),
207 : ::boost::cref( rLayer ) ) ) < 2,
208 : "BackgroundShape::removeViewLayer(): Duplicate ViewLayer entries!" );
209 :
210 0 : ViewBackgroundShapeVector::iterator aIter;
211 :
212 0 : if( (aIter=::std::remove_if( maViewShapes.begin(),
213 : aEnd,
214 : ::boost::bind<bool>(
215 : ::std::equal_to< ViewLayerSharedPtr >(),
216 : ::boost::bind( &ViewBackgroundShape::getViewLayer,
217 : _1 ),
218 0 : ::boost::cref( rLayer ) ) )) == aEnd )
219 : {
220 : // view layer seemingly was not added, failed
221 0 : return false;
222 : }
223 :
224 : // actually erase from container
225 0 : maViewShapes.erase( aIter, aEnd );
226 :
227 0 : return true;
228 : }
229 :
230 0 : bool BackgroundShape::clearAllViewLayers()
231 : {
232 0 : maViewShapes.clear();
233 0 : return true;
234 : }
235 :
236 0 : ::basegfx::B2DRectangle BackgroundShape::getBounds() const
237 : {
238 0 : return maBounds;
239 : }
240 :
241 0 : ::basegfx::B2DRectangle BackgroundShape::getDomBounds() const
242 : {
243 0 : return maBounds;
244 : }
245 :
246 0 : ::basegfx::B2DRectangle BackgroundShape::getUpdateArea() const
247 : {
248 : // TODO(F1): Need to expand background, too, when
249 : // antialiasing?
250 :
251 : // no transformation etc. possible for background shape
252 0 : return maBounds;
253 : }
254 :
255 0 : bool BackgroundShape::isVisible() const
256 : {
257 0 : return true;
258 : }
259 :
260 0 : double BackgroundShape::getPriority() const
261 : {
262 0 : return 0.0; // lowest prio, we're the background
263 : }
264 :
265 0 : bool BackgroundShape::update() const
266 : {
267 0 : return render();
268 : }
269 :
270 0 : bool BackgroundShape::render() const
271 : {
272 : SAL_INFO( "slideshow", "::presentation::internal::BackgroundShape::render()" );
273 : SAL_INFO( "slideshow", "::presentation::internal::BackgroundShape: 0x" << std::hex << this );
274 :
275 : // gcc again...
276 0 : const ::basegfx::B2DRectangle& rCurrBounds( BackgroundShape::getBounds() );
277 :
278 0 : if( rCurrBounds.getRange().equalZero() )
279 : {
280 : // zero-sized shapes are effectively invisible,
281 : // thus, we save us the rendering...
282 0 : return true;
283 : }
284 :
285 : // redraw all view shapes, by calling their render() method
286 0 : if( ::std::count_if( maViewShapes.begin(),
287 : maViewShapes.end(),
288 : ::boost::bind( &ViewBackgroundShape::render,
289 : _1,
290 0 : ::boost::cref( mpMtf ) ) )
291 0 : != static_cast<ViewBackgroundShapeVector::difference_type>(maViewShapes.size()) )
292 : {
293 : // at least one of the ViewBackgroundShape::render() calls did return
294 : // false - update failed on at least one ViewLayer
295 0 : return false;
296 : }
297 :
298 0 : return true;
299 : }
300 :
301 0 : bool BackgroundShape::isContentChanged() const
302 : {
303 0 : return false;
304 : }
305 :
306 0 : bool BackgroundShape::isBackgroundDetached() const
307 : {
308 0 : return false; // we're not animatable
309 : }
310 :
311 :
312 :
313 0 : ShapeSharedPtr createBackgroundShape(
314 : const uno::Reference< drawing::XDrawPage >& xDrawPage,
315 : const uno::Reference< drawing::XDrawPage >& xMasterPage,
316 : const SlideShowContext& rContext )
317 : {
318 : return ShapeSharedPtr(
319 : new BackgroundShape(
320 : xDrawPage,
321 : xMasterPage,
322 0 : rContext ));
323 : }
324 : }
325 0 : }
326 :
327 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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