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update dev300-m58
[ooovba.git] / drawinglayer / source / primitive3d / polygontubeprimitive3d.cxx
blobf4b238b644e258eff067f1732b0839023c3ee3a1
1 /*************************************************************************
2 *
3 * OpenOffice.org - a multi-platform office productivity suite
4 *
5 * $RCSfile: polygontubeprimitive3d.cxx,v $
6 *
7 * $Revision: 1.12 $
8 *
9 * last change: $Author: aw $ $Date: 2008-06-10 09:29:33 $
10 *
11 * The Contents of this file are made available subject to
12 * the terms of GNU Lesser General Public License Version 2.1.
13 *
14 *
15 * GNU Lesser General Public License Version 2.1
16 * =============================================
17 * Copyright 2005 by Sun Microsystems, Inc.
18 * 901 San Antonio Road, Palo Alto, CA 94303, USA
19 *
20 * This library is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU Lesser General Public
22 * License version 2.1, as published by the Free Software Foundation.
23 *
24 * This library is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 * Lesser General Public License for more details.
28 *
29 * You should have received a copy of the GNU Lesser General Public
30 * License along with this library; if not, write to the Free Software
31 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 * MA 02111-1307 USA
33 *
34 ************************************************************************/
35
36 // MARKER(update_precomp.py): autogen include statement, do not remove
37 #include "precompiled_drawinglayer.hxx"
38
39 #include <drawinglayer/primitive3d/polygontubeprimitive3d.hxx>
40 #include <drawinglayer/attribute/materialattribute3d.hxx>
41 #include <basegfx/matrix/b3dhommatrix.hxx>
42 #include <basegfx/polygon/b3dpolypolygon.hxx>
43 #include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx>
44 #include <basegfx/polygon/b3dpolypolygontools.hxx>
45 #include <drawinglayer/primitive3d/transformprimitive3d.hxx>
46 #include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx>
47
48 //////////////////////////////////////////////////////////////////////////////
49
50 namespace drawinglayer
51 {
52 namespace primitive3d
53 {
54 namespace // anonymous namespace
55 {
56 Primitive3DSequence getLineTubeSegments(
57 sal_uInt32 nSegments,
58 const attribute::MaterialAttribute3D& rMaterial)
59 {
60 // static data for buffered tube primitives
61 static Primitive3DSequence aLineTubeList;
62 static sal_uInt32 nLineTubeSegments(0L);
63 static attribute::MaterialAttribute3D aLineMaterial;
64
65 // may exclusively change static data, use mutex
66 ::osl::Mutex m_mutex;
67
68 if(nSegments != nLineTubeSegments || rMaterial != aLineMaterial)
69 {
70 nLineTubeSegments = nSegments;
71 aLineMaterial = rMaterial;
72 aLineTubeList = Primitive3DSequence();
73 }
74
75 if(!aLineTubeList.hasElements() && 0L != nLineTubeSegments)
76 {
77 const basegfx::B3DPoint aLeft(0.0, 0.0, 0.0);
78 const basegfx::B3DPoint aRight(1.0, 0.0, 0.0);
79 basegfx::B3DPoint aLastLeft(0.0, 1.0, 0.0);
80 basegfx::B3DPoint aLastRight(1.0, 1.0, 0.0);
81 basegfx::B3DHomMatrix aRot;
82 aRot.rotate(F_2PI / (double)nLineTubeSegments, 0.0, 0.0);
83 aLineTubeList.realloc(nLineTubeSegments);
84
85 for(sal_uInt32 a(0L); a < nLineTubeSegments; a++)
86 {
87 const basegfx::B3DPoint aNextLeft(aRot * aLastLeft);
88 const basegfx::B3DPoint aNextRight(aRot * aLastRight);
89 basegfx::B3DPolygon aNewPolygon;
90
91 aNewPolygon.append(aNextLeft);
92 aNewPolygon.setNormal(0L, basegfx::B3DVector(aNextLeft - aLeft));
93
94 aNewPolygon.append(aLastLeft);
95 aNewPolygon.setNormal(1L, basegfx::B3DVector(aLastLeft - aLeft));
96
97 aNewPolygon.append(aLastRight);
98 aNewPolygon.setNormal(2L, basegfx::B3DVector(aLastRight - aRight));
99
100 aNewPolygon.append(aNextRight);
101 aNewPolygon.setNormal(3L, basegfx::B3DVector(aNextRight - aRight));
102
103 aNewPolygon.setClosed(true);
104
105 const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon);
106 const Primitive3DReference xRef(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, aLineMaterial, false));
107 aLineTubeList[a] = xRef;
108
109 aLastLeft = aNextLeft;
110 aLastRight = aNextRight;
111 }
112 }
113
114 return aLineTubeList;
115 }
116
117 Primitive3DSequence getLineCapSegments(
118 sal_uInt32 nSegments,
119 const attribute::MaterialAttribute3D& rMaterial)
120 {
121 // static data for buffered tube primitives
122 static Primitive3DSequence aLineCapList;
123 static sal_uInt32 nLineCapSegments(0L);
124 static attribute::MaterialAttribute3D aLineMaterial;
125
126 // may exclusively change static data, use mutex
127 ::osl::Mutex m_mutex;
128
129 if(nSegments != nLineCapSegments || rMaterial != aLineMaterial)
130 {
131 nLineCapSegments = nSegments;
132 aLineMaterial = rMaterial;
133 aLineCapList = Primitive3DSequence();
134 }
135
136 if(!aLineCapList.hasElements() && 0L != nLineCapSegments)
137 {
138 const basegfx::B3DPoint aNull(0.0, 0.0, 0.0);
139 basegfx::B3DPoint aLast(0.0, 1.0, 0.0);
140 basegfx::B3DHomMatrix aRot;
141 aRot.rotate(F_2PI / (double)nLineCapSegments, 0.0, 0.0);
142 aLineCapList.realloc(nLineCapSegments);
143
144 for(sal_uInt32 a(0L); a < nLineCapSegments; a++)
145 {
146 const basegfx::B3DPoint aNext(aRot * aLast);
147 basegfx::B3DPolygon aNewPolygon;
148
149 aNewPolygon.append(aLast);
150 aNewPolygon.setNormal(0L, basegfx::B3DVector(aLast - aNull));
151
152 aNewPolygon.append(aNext);
153 aNewPolygon.setNormal(1L, basegfx::B3DVector(aNext - aNull));
154
155 aNewPolygon.append(aNull);
156 aNewPolygon.setNormal(2L, basegfx::B3DVector(-1.0, 0.0, 0.0));
157
158 aNewPolygon.setClosed(true);
159
160 const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon);
161 const Primitive3DReference xRef(new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, aLineMaterial, false));
162 aLineCapList[a] = xRef;
163
164 aLast = aNext;
165 }
166 }
167
168 return aLineCapList;
169 }
170
171 Primitive3DSequence getLineJoinSegments(
172 sal_uInt32 nSegments,
173 const attribute::MaterialAttribute3D& rMaterial,
174 double fAngle,
175 double /*fDegreeStepWidth*/,
176 double fMiterMinimumAngle,
177 basegfx::B2DLineJoin aLineJoin)
178 {
179 // nSegments is for whole circle, adapt to half circle
180 const sal_uInt32 nVerSeg(nSegments >> 1L);
181 std::vector< BasePrimitive3D* > aResultVector;
182
183 if(nVerSeg)
184 {
185 if(basegfx::B2DLINEJOIN_ROUND == aLineJoin)
186 {
187 // calculate new horizontal segments
188 const sal_uInt32 nHorSeg((sal_uInt32)((fAngle / F_2PI) * (double)nSegments));
189
190 if(nHorSeg)
191 {
192 // create half-sphere
193 const basegfx::B3DPolyPolygon aSphere(basegfx::tools::createUnitSphereFillPolyPolygon(nHorSeg, nVerSeg, true, F_PI2, -F_PI2, 0.0, fAngle));
194
195 for(sal_uInt32 a(0L); a < aSphere.count(); a++)
196 {
197 const basegfx::B3DPolygon aPartPolygon(aSphere.getB3DPolygon(a));
198 const basegfx::B3DPolyPolygon aPartPolyPolygon(aPartPolygon);
199 BasePrimitive3D* pNew = new PolyPolygonMaterialPrimitive3D(aPartPolyPolygon, rMaterial, false);
200 aResultVector.push_back(pNew);
201 }
202 }
203 else
204 {
205 // fallback to bevel when there is not at least one segment hor and ver
206 aLineJoin = basegfx::B2DLINEJOIN_BEVEL;
207 }
208 }
209
210 if(basegfx::B2DLINEJOIN_MIDDLE == aLineJoin
211 || basegfx::B2DLINEJOIN_BEVEL == aLineJoin
212 || basegfx::B2DLINEJOIN_MITER == aLineJoin)
213 {
214 if(basegfx::B2DLINEJOIN_MITER == aLineJoin)
215 {
216 const double fMiterAngle(fAngle/2.0);
217
218 if(fMiterAngle < fMiterMinimumAngle)
219 {
220 // fallback to bevel when miter's angle is too small
221 aLineJoin = basegfx::B2DLINEJOIN_BEVEL;
222 }
223 }
224
225 const double fInc(F_PI / (double)nVerSeg);
226 const double fSin(sin(-fAngle));
227 const double fCos(cos(-fAngle));
228 const bool bMiter(basegfx::B2DLINEJOIN_MITER == aLineJoin);
229 const double fMiterSin(bMiter ? sin(-(fAngle/2.0)) : 0.0);
230 const double fMiterCos(bMiter ? cos(-(fAngle/2.0)) : 0.0);
231 double fPos(-F_PI2);
232 basegfx::B3DPoint aPointOnXY, aPointRotY, aNextPointOnXY, aNextPointRotY;
233 basegfx::B3DPoint aCurrMiter, aNextMiter;
234 basegfx::B3DPolygon aNewPolygon, aMiterPolygon;
235
236 // close polygon
237 aNewPolygon.setClosed(true);
238 aMiterPolygon.setClosed(true);
239
240 for(sal_uInt32 a(0L); a < nVerSeg; a++)
241 {
242 const bool bFirst(0L == a);
243 const bool bLast(a + 1L == nVerSeg);
244
245 if(bFirst || !bLast)
246 {
247 fPos += fInc;
248
249 aNextPointOnXY = basegfx::B3DPoint(
250 cos(fPos),
251 sin(fPos),
252 0.0);
253
254 aNextPointRotY = basegfx::B3DPoint(
255 aNextPointOnXY.getX() * fCos,
256 aNextPointOnXY.getY(),
257 aNextPointOnXY.getX() * fSin);
258
259 if(bMiter)
260 {
261 aNextMiter = basegfx::B3DPoint(
262 aNextPointOnXY.getX(),
263 aNextPointOnXY.getY(),
264 fMiterSin * (aNextPointOnXY.getX() / fMiterCos));
265 }
266 }
267
268 if(bFirst)
269 {
270 aNewPolygon.clear();
271
272 if(bMiter)
273 {
274 aNewPolygon.append(basegfx::B3DPoint(0.0, -1.0, 0.0));
275 aNewPolygon.append(aNextPointOnXY);
276 aNewPolygon.append(aNextMiter);
277
278 aMiterPolygon.clear();
279 aMiterPolygon.append(basegfx::B3DPoint(0.0, -1.0, 0.0));
280 aMiterPolygon.append(aNextMiter);
281 aMiterPolygon.append(aNextPointRotY);
282 }
283 else
284 {
285 aNewPolygon.append(basegfx::B3DPoint(0.0, -1.0, 0.0));
286 aNewPolygon.append(aNextPointOnXY);
287 aNewPolygon.append(aNextPointRotY);
288 }
289 }
290 else if(bLast)
291 {
292 aNewPolygon.clear();
293
294 if(bMiter)
295 {
296 aNewPolygon.append(basegfx::B3DPoint(0.0, 1.0, 0.0));
297 aNewPolygon.append(aCurrMiter);
298 aNewPolygon.append(aPointOnXY);
299
300 aMiterPolygon.clear();
301 aMiterPolygon.append(basegfx::B3DPoint(0.0, 1.0, 0.0));
302 aMiterPolygon.append(aPointRotY);
303 aMiterPolygon.append(aCurrMiter);
304 }
305 else
306 {
307 aNewPolygon.append(basegfx::B3DPoint(0.0, 1.0, 0.0));
308 aNewPolygon.append(aPointRotY);
309 aNewPolygon.append(aPointOnXY);
310 }
311 }
312 else
313 {
314 aNewPolygon.clear();
315
316 if(bMiter)
317 {
318 aNewPolygon.append(aPointOnXY);
319 aNewPolygon.append(aNextPointOnXY);
320 aNewPolygon.append(aNextMiter);
321 aNewPolygon.append(aCurrMiter);
322
323 aMiterPolygon.clear();
324 aMiterPolygon.append(aCurrMiter);
325 aMiterPolygon.append(aNextMiter);
326 aMiterPolygon.append(aNextPointRotY);
327 aMiterPolygon.append(aPointRotY);
328 }
329 else
330 {
331 aNewPolygon.append(aPointRotY);
332 aNewPolygon.append(aPointOnXY);
333 aNewPolygon.append(aNextPointOnXY);
334 aNewPolygon.append(aNextPointRotY);
335 }
336 }
337
338 // set normals
339 for(sal_uInt32 b(0L); b < aNewPolygon.count(); b++)
340 {
341 aNewPolygon.setNormal(b, basegfx::B3DVector(aNewPolygon.getB3DPoint(b)));
342 }
343
344 // create primitive
345 if(aNewPolygon.count())
346 {
347 const basegfx::B3DPolyPolygon aNewPolyPolygon(aNewPolygon);
348 BasePrimitive3D* pNew = new PolyPolygonMaterialPrimitive3D(aNewPolyPolygon, rMaterial, false);
349 aResultVector.push_back(pNew);
350 }
351
352 if(bMiter && aMiterPolygon.count())
353 {
354 // set normals
355 for(sal_uInt32 c(0L); c < aMiterPolygon.count(); c++)
356 {
357 aMiterPolygon.setNormal(c, basegfx::B3DVector(aMiterPolygon.getB3DPoint(c)));
358 }
359
360 // create primitive
361 const basegfx::B3DPolyPolygon aMiterPolyPolygon(aMiterPolygon);
362 BasePrimitive3D* pNew = new PolyPolygonMaterialPrimitive3D(aMiterPolyPolygon, rMaterial, false);
363 aResultVector.push_back(pNew);
364 }
365
366 // prepare next step
367 if(bFirst || !bLast)
368 {
369 aPointOnXY = aNextPointOnXY;
370 aPointRotY = aNextPointRotY;
371
372 if(bMiter)
373 {
374 aCurrMiter = aNextMiter;
375 }
376 }
377 }
378 }
379 }
380
381 Primitive3DSequence aRetval(aResultVector.size());
382
383 for(sal_uInt32 a(0L); a < aResultVector.size(); a++)
384 {
385 aRetval[a] = Primitive3DReference(aResultVector[a]);
386 }
387
388 return aRetval;
389 }
390
391 basegfx::B3DHomMatrix getRotationFromVector(const basegfx::B3DVector& rVector)
392 {
393 // build transformation from unit vector to vector
394 basegfx::B3DHomMatrix aRetval;
395
396 // get applied rotations from angles in XY and in XZ (cartesian)
397 const double fRotInXY(atan2(rVector.getY(), rVector.getXZLength()));
398 const double fRotInXZ(atan2(-rVector.getZ(), rVector.getX()));
399
400 // apply rotations. Rot around Z needs to be done first, so apply in two steps
401 aRetval.rotate(0.0, 0.0, fRotInXY);
402 aRetval.rotate(0.0, fRotInXZ, 0.0);
403
404 return aRetval;
405 }
406 } // end of anonymous namespace
407 } // end of namespace primitive3d
408 } // end of namespace drawinglayer
409
410 //////////////////////////////////////////////////////////////////////////////
411
412 using namespace com::sun::star;
413
414 //////////////////////////////////////////////////////////////////////////////
415
416 namespace drawinglayer
417 {
418 namespace primitive3d
419 {
420 Primitive3DSequence PolygonTubePrimitive3D::createLocalDecomposition(const geometry::ViewInformation3D& /*rViewInformation*/) const
421 {
422 const sal_uInt32 nPointCount(getB3DPolygon().count());
423 std::vector< BasePrimitive3D* > aResultVector;
424
425 if(0L != nPointCount)
426 {
427 if(basegfx::fTools::more(getRadius(), 0.0))
428 {
429 const attribute::MaterialAttribute3D aMaterial(getBColor());
430 static sal_uInt32 nSegments(8L); // default for 3d line segments, for more quality just raise this value (in even steps)
431 const bool bClosed(getB3DPolygon().isClosed());
432 const bool bNoLineJoin(basegfx::B2DLINEJOIN_NONE == getLineJoin());
433 const sal_uInt32 nLoopCount(bClosed ? nPointCount : nPointCount - 1L);
434 basegfx::B3DPoint aLast(getB3DPolygon().getB3DPoint(nPointCount - 1L));
435 basegfx::B3DPoint aCurr(getB3DPolygon().getB3DPoint(0L));
436
437 for(sal_uInt32 a(0L); a < nLoopCount; a++)
438 {
439 // get next data
440 const basegfx::B3DPoint aNext(getB3DPolygon().getB3DPoint((a + 1L) % nPointCount));
441 const basegfx::B3DVector aForw(aNext - aCurr);
442 const double fForwLen(aForw.getLength());
443
444 if(basegfx::fTools::more(fForwLen, 0.0))
445 {
446 // get rotation from vector, this describes rotation from (1, 0, 0) to aForw
447 basegfx::B3DHomMatrix aRotVector(getRotationFromVector(aForw));
448
449 // create default transformation with scale and rotate
450 basegfx::B3DHomMatrix aVectorTrans;
451 aVectorTrans.scale(fForwLen, getRadius(), getRadius());
452 aVectorTrans *= aRotVector;
453 aVectorTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ());
454
455 if(bNoLineJoin || (!bClosed && !a))
456 {
457 // line start edge, build transformed primitiveVector3D
458 TransformPrimitive3D* pNewTransformedA = new TransformPrimitive3D(aVectorTrans, getLineCapSegments(nSegments, aMaterial));
459 aResultVector.push_back(pNewTransformedA);
460 }
461 else
462 {
463 const basegfx::B3DVector aBack(aCurr - aLast);
464 const double fCross(basegfx::cross(aBack, aForw).getLength());
465
466 if(!basegfx::fTools::equalZero(fCross))
467 {
468 // line connect non-parallel, aBack, aForw, use getLineJoin()
469 const double fAngle(acos(aBack.scalar(aForw) / (fForwLen * aBack.getLength()))); // 0.0 .. F_PI2
470 Primitive3DSequence aNewList(getLineJoinSegments(nSegments, aMaterial, fAngle, getDegreeStepWidth(), getMiterMinimumAngle(), getLineJoin()));
471
472 // calculate transformation. First, get angle in YZ between nForw projected on (1, 0, 0) and nBack
473 basegfx::B3DHomMatrix aInvRotVector(aRotVector);
474 aInvRotVector.invert();
475 basegfx::B3DVector aTransBack(aInvRotVector * aBack);
476 const double fRotInYZ(atan2(aTransBack.getY(), aTransBack.getZ()));
477
478 // create trans by rotating unit sphere with angle 90 degrees around Y, then 180-fRot in X.
479 // Also apply usual scaling and translation
480 basegfx::B3DHomMatrix aSphereTrans;
481 aSphereTrans.rotate(0.0, F_PI2, 0.0);
482 aSphereTrans.rotate(F_PI - fRotInYZ, 0.0, 0.0);
483 aSphereTrans *= aRotVector;
484 aSphereTrans.scale(getRadius(), getRadius(), getRadius());
485 aSphereTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ());
486
487 // line start edge, build transformed primitiveVector3D
488 TransformPrimitive3D* pNewTransformedB = new TransformPrimitive3D(aSphereTrans, aNewList);
489 aResultVector.push_back(pNewTransformedB);
490 }
491 }
492
493 // create line segments, build transformed primitiveVector3D
494 TransformPrimitive3D* pNewTransformedC = new TransformPrimitive3D(aVectorTrans, getLineTubeSegments(nSegments, aMaterial));
495 aResultVector.push_back(pNewTransformedC);
496
497 if(bNoLineJoin || (!bClosed && ((a + 1L) == nLoopCount)))
498 {
499 // line end edge, first rotate (mirror) and translate, then use use aRotVector
500 basegfx::B3DHomMatrix aBackTrans;
501 aBackTrans.rotate(0.0, F_PI, 0.0);
502 aBackTrans.translate(1.0, 0.0, 0.0);
503 aBackTrans.scale(fForwLen, getRadius(), getRadius());
504 aBackTrans *= aRotVector;
505 aBackTrans.translate(aCurr.getX(), aCurr.getY(), aCurr.getZ());
506
507 // line end edge, build transformed primitiveVector3D
508 TransformPrimitive3D* pNewTransformedD = new TransformPrimitive3D(aBackTrans, getLineCapSegments(nSegments, aMaterial));
509 aResultVector.push_back(pNewTransformedD);
510 }
511 }
512
513 // prepare next loop step
514 aLast = aCurr;
515 aCurr = aNext;
516 }
517 }
518 else
519 {
520 // create hairline
521 PolygonHairlinePrimitive3D* pNew = new PolygonHairlinePrimitive3D(getB3DPolygon(), getBColor());
522 aResultVector.push_back(pNew);
523 }
524 }
525
526 // prepare return value
527 Primitive3DSequence aRetval(aResultVector.size());
528
529 for(sal_uInt32 a(0L); a < aResultVector.size(); a++)
530 {
531 aRetval[a] = Primitive3DReference(aResultVector[a]);
532 }
533
534 return aRetval;
535 }
536
537 PolygonTubePrimitive3D::PolygonTubePrimitive3D(
538 const basegfx::B3DPolygon& rPolygon,
539 const basegfx::BColor& rBColor,
540 double fRadius, basegfx::B2DLineJoin aLineJoin,
541 double fDegreeStepWidth,
542 double fMiterMinimumAngle)
543 : PolygonHairlinePrimitive3D(rPolygon, rBColor),
544 mfRadius(fRadius),
545 mfDegreeStepWidth(fDegreeStepWidth),
546 mfMiterMinimumAngle(fMiterMinimumAngle),
547 maLineJoin(aLineJoin)
548 {
549 }
550
551 bool PolygonTubePrimitive3D::operator==(const BasePrimitive3D& rPrimitive) const
552 {
553 if(PolygonHairlinePrimitive3D::operator==(rPrimitive))
554 {
555 const PolygonTubePrimitive3D& rCompare = (PolygonTubePrimitive3D&)rPrimitive;
556
557 return (getRadius() == rCompare.getRadius()
558 && getDegreeStepWidth() == rCompare.getDegreeStepWidth()
559 && getMiterMinimumAngle() == rCompare.getMiterMinimumAngle()
560 && getLineJoin() == rCompare.getLineJoin());
561 }
562
563 return false;
564 }
565
566 // provide unique ID
567 ImplPrimitrive3DIDBlock(PolygonTubePrimitive3D, PRIMITIVE3D_ID_POLYGONTUBEPRIMITIVE3D)
568
569 } // end of namespace primitive3d
570 } // end of namespace drawinglayer
571
572 //////////////////////////////////////////////////////////////////////////////
573 // eof
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