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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 : #include <sdr/contact/viewobjectcontactofgraphic.hxx>
21 : #include <sdr/contact/viewcontactofgraphic.hxx>
22 : #include <svx/svdograf.hxx>
23 : #include <svx/sdr/contact/objectcontact.hxx>
24 : #include <svx/svdmodel.hxx>
25 : #include <svx/svdpage.hxx>
26 :
27 : #include "eventhandler.hxx"
28 :
29 : namespace sdr
30 : {
31 : namespace event
32 : {
33 : class AsynchGraphicLoadingEvent : public BaseEvent
34 : {
35 : // the ViewContactOfGraphic to work with
36 : sdr::contact::ViewObjectContactOfGraphic& mrVOCOfGraphic;
37 :
38 : public:
39 : // basic constructor.
40 : AsynchGraphicLoadingEvent(EventHandler& rEventHandler, sdr::contact::ViewObjectContactOfGraphic& rVOCOfGraphic);
41 :
42 : // destructor
43 : virtual ~AsynchGraphicLoadingEvent();
44 :
45 : // the called method if the event is triggered
46 : virtual void ExecuteEvent() SAL_OVERRIDE;
47 : };
48 :
49 6 : AsynchGraphicLoadingEvent::AsynchGraphicLoadingEvent(
50 : EventHandler& rEventHandler, sdr::contact::ViewObjectContactOfGraphic& rVOCOfGraphic)
51 : : BaseEvent(rEventHandler),
52 6 : mrVOCOfGraphic(rVOCOfGraphic)
53 : {
54 6 : }
55 :
56 18 : AsynchGraphicLoadingEvent::~AsynchGraphicLoadingEvent()
57 : {
58 6 : mrVOCOfGraphic.forgetAsynchGraphicLoadingEvent(this);
59 12 : }
60 :
61 0 : void AsynchGraphicLoadingEvent::ExecuteEvent()
62 : {
63 0 : mrVOCOfGraphic.doAsynchGraphicLoading();
64 0 : }
65 : } // end of namespace event
66 : } // end of namespace sdr
67 :
68 :
69 :
70 : namespace sdr
71 : {
72 : namespace contact
73 : {
74 : // Test graphics state and eventually trigger a SwapIn event or an Asynchronous
75 : // load event. Return value gives info if SwapIn was triggered or not
76 197 : bool ViewObjectContactOfGraphic::impPrepareGraphicWithAsynchroniousLoading()
77 : {
78 197 : bool bRetval(false);
79 197 : SdrGrafObj& rGrafObj = getSdrGrafObj();
80 :
81 197 : if(rGrafObj.IsSwappedOut())
82 : {
83 6 : if(rGrafObj.IsLinkedGraphic())
84 : {
85 : // update graphic link
86 0 : rGrafObj.ImpUpdateGraphicLink();
87 : }
88 : else
89 : {
90 : // SwapIn needs to be done. Decide if it can be done asynchronious.
91 6 : bool bSwapInAsynchronious(false);
92 6 : ObjectContact& rObjectContact = GetObjectContact();
93 :
94 : // only when allowed from configuration
95 6 : if(rObjectContact.IsAsynchronGraphicsLoadingAllowed())
96 : {
97 : // direct output or vdev output (PageView buffering)
98 6 : if(rObjectContact.isOutputToWindow() || rObjectContact.isOutputToVirtualDevice())
99 : {
100 : // only when no metafile recording
101 6 : if(!rObjectContact.isOutputToRecordingMetaFile())
102 : {
103 : // allow asynchronious loading
104 6 : bSwapInAsynchronious = true;
105 : }
106 : }
107 : }
108 :
109 6 : if(bSwapInAsynchronious)
110 : {
111 : // maybe it's on the way, then do nothing
112 6 : if(!mpAsynchLoadEvent)
113 : {
114 : // Trigger asynchronious SwapIn.
115 6 : sdr::event::TimerEventHandler& rEventHandler = rObjectContact.GetEventHandler();
116 :
117 6 : mpAsynchLoadEvent = new sdr::event::AsynchGraphicLoadingEvent(rEventHandler, *this);
118 : }
119 : }
120 : else
121 : {
122 0 : if(rObjectContact.isOutputToPrinter() || rObjectContact.isOutputToPDFFile())
123 : {
124 : // #i76395# preview mechanism is only active if
125 : // swapin is called from inside paint preparation, so mbInsidePaint
126 : // has to be false to be able to print with high resolution
127 0 : rGrafObj.ForceSwapIn();
128 : }
129 : else
130 : {
131 : // SwapIn direct
132 0 : rGrafObj.mbInsidePaint = true;
133 0 : rGrafObj.ForceSwapIn();
134 0 : rGrafObj.mbInsidePaint = false;
135 : }
136 :
137 : // Invalidate paint areas.
138 0 : GetViewContact().ActionChanged();
139 :
140 0 : bRetval = true;
141 : }
142 : }
143 : }
144 : else
145 : {
146 : // it is not swapped out, somehow it was loaded. In that case, forget
147 : // about an existing triggered event
148 191 : if(mpAsynchLoadEvent)
149 : {
150 : // just delete it, this will remove it from the EventHandler and
151 : // will trigger forgetAsynchGraphicLoadingEvent from the destructor
152 6 : delete mpAsynchLoadEvent;
153 : }
154 : }
155 :
156 197 : return bRetval;
157 : }
158 :
159 : // Test graphics state and eventually trigger a SwapIn event. Return value
160 : // gives info if SwapIn was triggered or not
161 3 : bool ViewObjectContactOfGraphic::impPrepareGraphicWithSynchroniousLoading()
162 : {
163 3 : bool bRetval(false);
164 3 : SdrGrafObj& rGrafObj = getSdrGrafObj();
165 :
166 3 : if(rGrafObj.IsSwappedOut())
167 : {
168 3 : if(rGrafObj.IsLinkedGraphic())
169 : {
170 : // update graphic link
171 1 : rGrafObj.ImpUpdateGraphicLink( false );
172 : }
173 : else
174 : {
175 2 : ObjectContact& rObjectContact = GetObjectContact();
176 :
177 2 : if(rObjectContact.isOutputToPrinter() || rObjectContact.isOutputToPDFFile())
178 : {
179 : // #i76395# preview mechanism is only active if
180 : // swapin is called from inside paint preparation, so mbInsidePaint
181 : // has to be false to be able to print with high resolution
182 0 : rGrafObj.ForceSwapIn();
183 : }
184 : else
185 : {
186 : // SwapIn direct
187 2 : rGrafObj.mbInsidePaint = true;
188 2 : rGrafObj.ForceSwapIn();
189 2 : rGrafObj.mbInsidePaint = false;
190 : }
191 :
192 : // Invalidate paint areas.
193 2 : GetViewContact().ActionChanged();
194 :
195 2 : bRetval = true;
196 : }
197 : }
198 :
199 3 : return bRetval;
200 : }
201 :
202 : // This is the call from the asynch graphic loading. This may only be called from
203 : // AsynchGraphicLoadingEvent::ExecuteEvent(). Do load the graphics. The event will
204 : // be deleted (consumed) and forgetAsynchGraphicLoadingEvent will be called.
205 0 : void ViewObjectContactOfGraphic::doAsynchGraphicLoading()
206 : {
207 : DBG_ASSERT(mpAsynchLoadEvent, "ViewObjectContactOfGraphic::doAsynchGraphicLoading: I did not trigger a event, why am i called (?)");
208 :
209 : // swap it in
210 0 : SdrGrafObj& rGrafObj = getSdrGrafObj();
211 0 : rGrafObj.ForceSwapIn();
212 :
213 : // #i103720# forget event to avoid possible deletion by the following ActionChanged call
214 : // which may use createPrimitive2DSequence/impPrepareGraphicWithAsynchroniousLoading again.
215 : // Deletion is actally done by the scheduler who leaded to coming here
216 0 : mpAsynchLoadEvent = 0;
217 :
218 : // Invalidate all paint areas and check existing animation (which may have changed).
219 0 : GetViewContact().ActionChanged();
220 0 : }
221 :
222 : // This is the call from the destructor of the asynch graphic loading event.
223 : // No one else has to call this. It is needed to let this object forget about
224 : // the event. The parameter allows checking for the correct event.
225 6 : void ViewObjectContactOfGraphic::forgetAsynchGraphicLoadingEvent(sdr::event::AsynchGraphicLoadingEvent* pEvent)
226 : {
227 : (void) pEvent; // suppress warning
228 :
229 6 : if(mpAsynchLoadEvent)
230 : {
231 : OSL_ENSURE(!pEvent || mpAsynchLoadEvent == pEvent,
232 : "ViewObjectContactOfGraphic::forgetAsynchGraphicLoadingEvent: Forced to forget another event then i have scheduled (?)");
233 :
234 : // forget event
235 6 : mpAsynchLoadEvent = 0;
236 : }
237 6 : }
238 :
239 0 : const SdrGrafObj& ViewObjectContactOfGraphic::getSdrGrafObj() const
240 : {
241 0 : return static_cast<const ViewContactOfGraphic& >(GetViewContact()).GetGrafObject();
242 : }
243 :
244 400 : SdrGrafObj& ViewObjectContactOfGraphic::getSdrGrafObj()
245 : {
246 400 : return static_cast<ViewContactOfGraphic& >(GetViewContact()).GetGrafObject();
247 : }
248 :
249 200 : drawinglayer::primitive2d::Primitive2DSequence ViewObjectContactOfGraphic::createPrimitive2DSequence(const DisplayInfo& rDisplayInfo) const
250 : {
251 : // prepare primitive generation with evtl. loading the graphic when it's swapped out
252 200 : SdrGrafObj& rGrafObj = const_cast< ViewObjectContactOfGraphic* >(this)->getSdrGrafObj();
253 200 : bool bDoAsynchronGraphicLoading(rGrafObj.GetModel() && rGrafObj.GetModel()->IsSwapGraphics());
254 :
255 200 : if( bDoAsynchronGraphicLoading && rGrafObj.IsSwappedOut() )
256 : {
257 : // sometimes it is needed that each graphic is completely available and swapped in
258 : // for these cases a ForceSwapIn is called later at the graphic object
259 9 : if ( rGrafObj.GetPage() && rGrafObj.GetPage()->IsMasterPage() )
260 : {
261 : // #i102380# force Swap-In for GraphicObjects on MasterPage to have a nicer visualisation
262 0 : bDoAsynchronGraphicLoading = false;
263 : }
264 18 : else if ( GetObjectContact().isOutputToPrinter()
265 9 : || GetObjectContact().isOutputToRecordingMetaFile()
266 15 : || GetObjectContact().isOutputToPDFFile() )
267 : {
268 3 : bDoAsynchronGraphicLoading = false;
269 : }
270 : }
271 200 : if( bDoAsynchronGraphicLoading )
272 : {
273 197 : const_cast< ViewObjectContactOfGraphic* >(this)->impPrepareGraphicWithAsynchroniousLoading();
274 : }
275 : else
276 : {
277 3 : const_cast< ViewObjectContactOfGraphic* >(this)->impPrepareGraphicWithSynchroniousLoading();
278 : }
279 :
280 : // get return value by calling parent
281 200 : drawinglayer::primitive2d::Primitive2DSequence xRetval = ViewObjectContactOfSdrObj::createPrimitive2DSequence(rDisplayInfo);
282 :
283 200 : if(xRetval.hasElements())
284 : {
285 : // #i103255# suppress when graphic needs draft visualisation and output
286 : // is for PDF export/Printer
287 200 : const ViewContactOfGraphic& rVCOfGraphic = static_cast< const ViewContactOfGraphic& >(GetViewContact());
288 :
289 200 : if(rVCOfGraphic.visualisationUsesDraft())
290 : {
291 6 : const ObjectContact& rObjectContact = GetObjectContact();
292 :
293 6 : if(rObjectContact.isOutputToPDFFile() || rObjectContact.isOutputToPrinter())
294 : {
295 0 : xRetval = drawinglayer::primitive2d::Primitive2DSequence();
296 : }
297 : }
298 : }
299 :
300 200 : return xRetval;
301 : }
302 :
303 181 : ViewObjectContactOfGraphic::ViewObjectContactOfGraphic(ObjectContact& rObjectContact, ViewContact& rViewContact)
304 : : ViewObjectContactOfSdrObj(rObjectContact, rViewContact),
305 181 : mpAsynchLoadEvent(0)
306 : {
307 181 : }
308 :
309 540 : ViewObjectContactOfGraphic::~ViewObjectContactOfGraphic()
310 : {
311 : // evtl. delete the asynch loading event
312 180 : if(mpAsynchLoadEvent)
313 : {
314 : // just delete it, this will remove it from the EventHandler and
315 : // will trigger forgetAsynchGraphicLoadingEvent from the destructor
316 0 : delete mpAsynchLoadEvent;
317 : }
318 360 : }
319 : } // end of namespace contact
320 435 : } // end of namespace sdr
321 :
322 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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