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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 <svx/sdr/contact/viewcontact.hxx>
21 : #include <svx/sdr/contact/viewobjectcontact.hxx>
22 : #include <svx/sdr/contact/objectcontact.hxx>
23 : #include <basegfx/polygon/b2dpolygon.hxx>
24 : #include <basegfx/polygon/b2dpolygontools.hxx>
25 : #include <basegfx/color/bcolor.hxx>
26 : #include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
27 : #include <basegfx/matrix/b2dhommatrix.hxx>
28 : #include <sdr/contact/objectcontactofpageview.hxx>
29 : #include <tools/debug.hxx>
30 :
31 : namespace sdr { namespace contact {
32 :
33 : // Create a Object-Specific ViewObjectContact, set ViewContact and
34 : // ObjectContact. Always needs to return something. Default is to create
35 : // a standard ViewObjectContact containing the given ObjectContact and *this
36 0 : ViewObjectContact& ViewContact::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
37 : {
38 0 : return *(new ViewObjectContact(rObjectContact, *this));
39 : }
40 :
41 194387 : ViewContact::ViewContact()
42 : : maViewObjectContactVector(),
43 194387 : mxViewIndependentPrimitive2DSequence()
44 : {
45 194387 : }
46 :
47 384648 : ViewContact::~ViewContact()
48 : {
49 192324 : deleteAllVOCs();
50 192324 : }
51 :
52 624525 : void ViewContact::deleteAllVOCs()
53 : {
54 : // get rid of all VOCs
55 : // #i84257# To avoid that each 'delete pCandidate' again uses
56 : // the local RemoveViewObjectContact with a search and removal in the
57 : // vector, simply copy and clear local vector.
58 624525 : std::vector< ViewObjectContact* > aLocalVOCList(maViewObjectContactVector);
59 624525 : maViewObjectContactVector.clear();
60 :
61 1249305 : while(!aLocalVOCList.empty())
62 : {
63 255 : ViewObjectContact* pCandidate = aLocalVOCList.back();
64 255 : aLocalVOCList.pop_back();
65 : DBG_ASSERT(pCandidate, "Corrupted ViewObjectContactList in VC (!)");
66 :
67 : // ViewObjectContacts only make sense with View and Object contacts.
68 : // When the contact to the SdrObject is deleted like in this case,
69 : // all ViewObjectContacts can be deleted, too.
70 255 : delete pCandidate;
71 : }
72 :
73 : // assert when there were new entries added during deletion
74 624525 : DBG_ASSERT(maViewObjectContactVector.empty(), "Corrupted ViewObjectContactList in VC (!)");
75 624525 : }
76 :
77 : // get a Object-specific ViewObjectContact for a specific
78 : // ObjectContact (->View). Always needs to return something.
79 596116 : ViewObjectContact& ViewContact::GetViewObjectContact(ObjectContact& rObjectContact)
80 : {
81 596116 : ViewObjectContact* pRetval = 0L;
82 596116 : const sal_uInt32 nCount(maViewObjectContactVector.size());
83 :
84 : // first search if there exists a VOC for the given OC
85 1112604 : for(sal_uInt32 a(0); !pRetval && a < nCount; a++)
86 : {
87 516488 : ViewObjectContact* pCandidate = maViewObjectContactVector[a];
88 : DBG_ASSERT(pCandidate, "Corrupted ViewObjectContactList (!)");
89 :
90 516488 : if(&(pCandidate->GetObjectContact()) == &rObjectContact)
91 : {
92 510791 : pRetval = pCandidate;
93 : }
94 : }
95 :
96 596116 : if(!pRetval)
97 : {
98 : // create a new one. It's inserted to the local list from the
99 : // ViewObjectContact constructor via AddViewObjectContact()
100 85325 : pRetval = &CreateObjectSpecificViewObjectContact(rObjectContact);
101 : }
102 :
103 596116 : return *pRetval;
104 : }
105 :
106 : // A new ViewObjectContact was created and shall be remembered.
107 85325 : void ViewContact::AddViewObjectContact(ViewObjectContact& rVOContact)
108 : {
109 85325 : maViewObjectContactVector.push_back(&rVOContact);
110 85325 : }
111 :
112 : // A ViewObjectContact was deleted and shall be forgotten.
113 84154 : void ViewContact::RemoveViewObjectContact(ViewObjectContact& rVOContact)
114 : {
115 84154 : std::vector< ViewObjectContact* >::iterator aFindResult = std::find(maViewObjectContactVector.begin(), maViewObjectContactVector.end(), &rVOContact);
116 :
117 84154 : if(aFindResult != maViewObjectContactVector.end())
118 : {
119 83899 : maViewObjectContactVector.erase(aFindResult);
120 : }
121 84154 : }
122 :
123 : // Test if this ViewContact has ViewObjectContacts at all. This can
124 : // be used to test if this ViewContact is visualized ATM or not
125 112 : bool ViewContact::HasViewObjectContacts(bool bExcludePreviews) const
126 : {
127 112 : const sal_uInt32 nCount(maViewObjectContactVector.size());
128 :
129 112 : if(bExcludePreviews)
130 : {
131 112 : for(sal_uInt32 a(0); a < nCount; a++)
132 : {
133 1 : if(!maViewObjectContactVector[a]->GetObjectContact().IsPreviewRenderer())
134 : {
135 1 : return true;
136 : }
137 : }
138 :
139 111 : return false;
140 : }
141 : else
142 : {
143 0 : return (0L != nCount);
144 : }
145 : }
146 :
147 : // Test if this ViewContact has ViewObjectContacts at all. This can
148 : // be used to test if this ViewContact is visualized ATM or not
149 0 : bool ViewContact::isAnimatedInAnyViewObjectContact() const
150 : {
151 0 : const sal_uInt32 nCount(maViewObjectContactVector.size());
152 :
153 0 : for(sal_uInt32 a(0); a < nCount; a++)
154 : {
155 0 : if(maViewObjectContactVector[a]->isAnimated())
156 : {
157 0 : return true;
158 : }
159 : }
160 :
161 0 : return false;
162 : }
163 :
164 : // Access to possible sub-hierarchy and parent. GetObjectCount() default is 0L
165 : // and GetViewContact default pops up an assert since it's an error if
166 : // GetObjectCount has a result != 0 and it's not overridden.
167 19930 : sal_uInt32 ViewContact::GetObjectCount() const
168 : {
169 : // no sub-objects
170 19930 : return 0;
171 : }
172 :
173 0 : ViewContact& ViewContact::GetViewContact(sal_uInt32 /*nIndex*/) const
174 : {
175 : // This is the default implementation; call would be an error
176 : OSL_FAIL("ViewContact::GetViewContact: This call needs to be overridden when GetObjectCount() can return results != 0 (!)");
177 0 : return (ViewContact&)(*this);
178 : }
179 :
180 0 : ViewContact* ViewContact::GetParentContact() const
181 : {
182 : // default has no parent
183 0 : return 0;
184 : }
185 :
186 111933 : void ViewContact::ActionChildInserted(ViewContact& rChild)
187 : {
188 : // propagate change to all exsisting visualisations which
189 : // will force a VOC for the new child and invalidate its range
190 111933 : const sal_uInt32 nCount(maViewObjectContactVector.size());
191 :
192 112673 : for(sal_uInt32 a(0); a < nCount; a++)
193 : {
194 740 : ViewObjectContact* pCandidate = maViewObjectContactVector[a];
195 : DBG_ASSERT(pCandidate, "ViewContact::GetViewObjectContact() invalid ViewObjectContactList (!)");
196 :
197 : // take action at all VOCs. At the VOCs ObjectContact the initial
198 : // rectangle will be invalidated at the associated OutputDevice.
199 740 : pCandidate->ActionChildInserted(rChild);
200 : }
201 111933 : }
202 :
203 : // React on changes of the object of this ViewContact
204 1623339 : void ViewContact::ActionChanged()
205 : {
206 : // propagate change to all existing VOCs. This will invalidate
207 : // all drawn visualisations in all known views
208 1623339 : const sal_uInt32 nCount(maViewObjectContactVector.size());
209 :
210 1634284 : for(sal_uInt32 a(0); a < nCount; a++)
211 : {
212 10945 : ViewObjectContact* pCandidate = maViewObjectContactVector[a];
213 : DBG_ASSERT(pCandidate, "ViewContact::GetViewObjectContact() invalid ViewObjectContactList (!)");
214 :
215 10945 : pCandidate->ActionChanged();
216 : }
217 1623339 : }
218 :
219 : // access to SdrObject and/or SdrPage. May return 0L like the default
220 : // implementations do. Override as needed.
221 4243 : SdrObject* ViewContact::TryToGetSdrObject() const
222 : {
223 4243 : return 0L;
224 : }
225 :
226 0 : SdrPage* ViewContact::TryToGetSdrPage() const
227 : {
228 0 : return 0L;
229 : }
230 :
231 :
232 : // primitive stuff
233 :
234 0 : drawinglayer::primitive2d::Primitive2DSequence ViewContact::createViewIndependentPrimitive2DSequence() const
235 : {
236 : // This is the default implementation and should never be called (see header). If this is called,
237 : // someone implemented a ViewContact (VC) visualisation object without defining the visualisation by
238 : // providing a seqence of primitives -> which cannot be correct.
239 : // Since we have no access to any known model data here, the default implementation creates a yellow placeholder
240 : // hairline polygon with a default size of (1000, 1000, 5000, 3000)
241 : OSL_FAIL("ViewContact::createViewIndependentPrimitive2DSequence(): Never call the fallback base implementation, this is always an error (!)");
242 0 : const basegfx::B2DPolygon aOutline(basegfx::tools::createPolygonFromRect(basegfx::B2DRange(1000.0, 1000.0, 5000.0, 3000.0)));
243 0 : const basegfx::BColor aYellow(1.0, 1.0, 0.0);
244 : const drawinglayer::primitive2d::Primitive2DReference xReference(
245 0 : new drawinglayer::primitive2d::PolygonHairlinePrimitive2D(aOutline, aYellow));
246 :
247 0 : return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
248 : }
249 :
250 115283 : drawinglayer::primitive2d::Primitive2DSequence ViewContact::getViewIndependentPrimitive2DSequence() const
251 : {
252 : // local up-to-date checks. Create new list and compare.
253 115283 : drawinglayer::primitive2d::Primitive2DSequence xNew(createViewIndependentPrimitive2DSequence());
254 :
255 115283 : if(xNew.hasElements())
256 : {
257 : // allow evtl. embedding in object-specific infos, e.g. Name, Title, Description
258 110147 : xNew = embedToObjectSpecificInformation(xNew);
259 : }
260 :
261 115283 : if(!drawinglayer::primitive2d::arePrimitive2DSequencesEqual(mxViewIndependentPrimitive2DSequence, xNew))
262 : {
263 : // has changed, copy content
264 62944 : const_cast< ViewContact* >(this)->mxViewIndependentPrimitive2DSequence = xNew;
265 : }
266 :
267 : // return current Primitive2DSequence
268 115283 : return mxViewIndependentPrimitive2DSequence;
269 : }
270 :
271 : // add Gluepoints (if available)
272 0 : drawinglayer::primitive2d::Primitive2DSequence ViewContact::createGluePointPrimitive2DSequence() const
273 : {
274 : // default returns empty reference
275 0 : return drawinglayer::primitive2d::Primitive2DSequence();
276 : }
277 :
278 7244 : drawinglayer::primitive2d::Primitive2DSequence ViewContact::embedToObjectSpecificInformation(const drawinglayer::primitive2d::Primitive2DSequence& rSource) const
279 : {
280 : // nothing to do for default
281 7244 : return rSource;
282 : }
283 :
284 76769 : basegfx::B2DRange ViewContact::getRange( const drawinglayer::geometry::ViewInformation2D& /*rViewInfo2D*/ ) const
285 : {
286 : // Return empty range.
287 76769 : return basegfx::B2DRange();
288 : }
289 :
290 432201 : void ViewContact::flushViewObjectContacts(bool bWithHierarchy)
291 : {
292 432201 : if(bWithHierarchy)
293 : {
294 : // flush DrawingLayer hierarchy
295 432180 : const sal_uInt32 nCount(GetObjectCount());
296 :
297 749858 : for(sal_uInt32 a(0); a < nCount; a++)
298 : {
299 317678 : ViewContact& rChild = GetViewContact(a);
300 317678 : rChild.flushViewObjectContacts(bWithHierarchy);
301 : }
302 : }
303 :
304 : // delete local VOCs
305 432201 : deleteAllVOCs();
306 432201 : }
307 :
308 : }}
309 :
310 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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