xref: /trunk/main/svx/source/svdraw/svdglue.cxx (revision 1ecadb572e7010ff3b3382ad9bf179dbc6efadbb)
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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_svx.hxx"
30 #include <tools/debug.hxx>
31 
32 #include <svx/svdglue.hxx>
33 #include <svx/svdobj.hxx>
34 #include <svx/svdtrans.hxx>
35 
36 ////////////////////////////////////////////////////////////////////////////////////////////////////
37 
38 void SdrGluePoint::SetReallyAbsolute(FASTBOOL bOn, const SdrObject& rObj)
39 {
40     if ( bReallyAbsolute != bOn )
41     {
42        if ( bOn )
43        {
44            aPos=GetAbsolutePos(rObj);
45            bReallyAbsolute=bOn;
46        }
47        else
48        {
49            bReallyAbsolute=bOn;
50            Point aPt(aPos);
51            SetAbsolutePos(aPt,rObj);
52        }
53     }
54 }
55 
56 Point SdrGluePoint::GetAbsolutePos(const SdrObject& rObj) const
57 {
58     if (bReallyAbsolute) return aPos;
59     Rectangle aSnap(rObj.GetSnapRect());
60     Rectangle aBound(rObj.GetSnapRect());
61     Point aPt(aPos);
62 
63     Point aOfs(aSnap.Center());
64     switch (GetHorzAlign()) {
65         case SDRHORZALIGN_LEFT  : aOfs.X()=aSnap.Left(); break;
66         case SDRHORZALIGN_RIGHT : aOfs.X()=aSnap.Right(); break;
67     }
68     switch (GetVertAlign()) {
69         case SDRVERTALIGN_TOP   : aOfs.Y()=aSnap.Top(); break;
70         case SDRVERTALIGN_BOTTOM: aOfs.Y()=aSnap.Bottom(); break;
71     }
72     if (!bNoPercent) {
73         long nXMul=aSnap.Right()-aSnap.Left();
74         long nYMul=aSnap.Bottom()-aSnap.Top();
75         long nXDiv=10000;
76         long nYDiv=10000;
77         if (nXMul!=nXDiv) {
78             aPt.X()*=nXMul;
79             aPt.X()/=nXDiv;
80         }
81         if (nYMul!=nYDiv) {
82             aPt.Y()*=nYMul;
83             aPt.Y()/=nYDiv;
84         }
85     }
86     aPt+=aOfs;
87     // Und nun auf's BoundRect des Objekts begrenzen
88     if (aPt.X()<aBound.Left  ()) aPt.X()=aBound.Left  ();
89     if (aPt.X()>aBound.Right ()) aPt.X()=aBound.Right ();
90     if (aPt.Y()<aBound.Top   ()) aPt.Y()=aBound.Top   ();
91     if (aPt.Y()>aBound.Bottom()) aPt.Y()=aBound.Bottom();
92     return aPt;
93 }
94 
95 void SdrGluePoint::SetAbsolutePos(const Point& rNewPos, const SdrObject& rObj)
96 {
97     if (bReallyAbsolute) {
98         aPos=rNewPos;
99         return;
100     }
101     Rectangle aSnap(rObj.GetSnapRect());
102     Point aPt(rNewPos);
103 
104     Point aOfs(aSnap.Center());
105     switch (GetHorzAlign()) {
106         case SDRHORZALIGN_LEFT  : aOfs.X()=aSnap.Left(); break;
107         case SDRHORZALIGN_RIGHT : aOfs.X()=aSnap.Right(); break;
108     }
109     switch (GetVertAlign()) {
110         case SDRVERTALIGN_TOP   : aOfs.Y()=aSnap.Top(); break;
111         case SDRVERTALIGN_BOTTOM: aOfs.Y()=aSnap.Bottom(); break;
112     }
113     aPt-=aOfs;
114     if (!bNoPercent) {
115         long nXMul=aSnap.Right()-aSnap.Left();
116         long nYMul=aSnap.Bottom()-aSnap.Top();
117         if (nXMul==0) nXMul=1;
118         if (nYMul==0) nYMul=1;
119         long nXDiv=10000;
120         long nYDiv=10000;
121         if (nXMul!=nXDiv) {
122             aPt.X()*=nXDiv;
123             aPt.X()/=nXMul;
124         }
125         if (nYMul!=nYDiv) {
126             aPt.Y()*=nYDiv;
127             aPt.Y()/=nYMul;
128         }
129     }
130     aPos=aPt;
131 }
132 
133 long SdrGluePoint::GetAlignAngle() const
134 {
135     switch (nAlign) {
136         case SDRHORZALIGN_CENTER|SDRVERTALIGN_CENTER: return 0; // Invalid!
137         case SDRHORZALIGN_RIGHT |SDRVERTALIGN_CENTER: return 0;
138         case SDRHORZALIGN_RIGHT |SDRVERTALIGN_TOP   : return 4500;
139         case SDRHORZALIGN_CENTER|SDRVERTALIGN_TOP   : return 9000;
140         case SDRHORZALIGN_LEFT  |SDRVERTALIGN_TOP   : return 13500;
141         case SDRHORZALIGN_LEFT  |SDRVERTALIGN_CENTER: return 18000;
142         case SDRHORZALIGN_LEFT  |SDRVERTALIGN_BOTTOM: return 22500;
143         case SDRHORZALIGN_CENTER|SDRVERTALIGN_BOTTOM: return 27000;
144         case SDRHORZALIGN_RIGHT |SDRVERTALIGN_BOTTOM: return 31500;
145     } // switch
146     return 0;
147 }
148 
149 void SdrGluePoint::SetAlignAngle(long nWink)
150 {
151     nWink=NormAngle360(nWink);
152     if (nWink>=33750 || nWink<2250) nAlign=SDRHORZALIGN_RIGHT |SDRVERTALIGN_CENTER;
153     else if (nWink< 6750) nAlign=SDRHORZALIGN_RIGHT |SDRVERTALIGN_TOP   ;
154     else if (nWink<11250) nAlign=SDRHORZALIGN_CENTER|SDRVERTALIGN_TOP   ;
155     else if (nWink<15750) nAlign=SDRHORZALIGN_LEFT  |SDRVERTALIGN_TOP   ;
156     else if (nWink<20250) nAlign=SDRHORZALIGN_LEFT  |SDRVERTALIGN_CENTER;
157     else if (nWink<24750) nAlign=SDRHORZALIGN_LEFT  |SDRVERTALIGN_BOTTOM;
158     else if (nWink<29250) nAlign=SDRHORZALIGN_CENTER|SDRVERTALIGN_BOTTOM;
159     else if (nWink<33750) nAlign=SDRHORZALIGN_RIGHT |SDRVERTALIGN_BOTTOM;
160 }
161 
162 long SdrGluePoint::EscDirToAngle(sal_uInt16 nEsc) const
163 {
164     switch (nEsc) {
165         case SDRESC_RIGHT : return 0;
166         case SDRESC_TOP   : return 9000;
167         case SDRESC_LEFT  : return 18000;
168         case SDRESC_BOTTOM: return 27000;
169     } // switch
170     return 0;
171 }
172 
173 sal_uInt16 SdrGluePoint::EscAngleToDir(long nWink) const
174 {
175     nWink=NormAngle360(nWink);
176     if (nWink>=31500 || nWink<4500) return SDRESC_RIGHT;
177     if (nWink<13500) return SDRESC_TOP;
178     if (nWink<22500) return SDRESC_LEFT;
179     if (nWink<31500) return SDRESC_BOTTOM;
180     return 0;
181 }
182 
183 void SdrGluePoint::Rotate(const Point& rRef, long nWink, double sn, double cs, const SdrObject* pObj)
184 {
185     Point aPt(pObj!=NULL ? GetAbsolutePos(*pObj) : GetPos());
186     RotatePoint(aPt,rRef,sn,cs);
187     // Bezugskante drehen
188     if(nAlign != (SDRHORZALIGN_CENTER|SDRVERTALIGN_CENTER))
189     {
190         SetAlignAngle(GetAlignAngle()+nWink);
191     }
192     // Austrittsrichtungen drehen
193     sal_uInt16 nEscDir0=nEscDir;
194     sal_uInt16 nEscDir1=0;
195     if ((nEscDir0&SDRESC_LEFT  )!=0) nEscDir1|=EscAngleToDir(EscDirToAngle(SDRESC_LEFT  )+nWink);
196     if ((nEscDir0&SDRESC_TOP   )!=0) nEscDir1|=EscAngleToDir(EscDirToAngle(SDRESC_TOP   )+nWink);
197     if ((nEscDir0&SDRESC_RIGHT )!=0) nEscDir1|=EscAngleToDir(EscDirToAngle(SDRESC_RIGHT )+nWink);
198     if ((nEscDir0&SDRESC_BOTTOM)!=0) nEscDir1|=EscAngleToDir(EscDirToAngle(SDRESC_BOTTOM)+nWink);
199     nEscDir=nEscDir1;
200     if (pObj!=NULL) SetAbsolutePos(aPt,*pObj); else SetPos(aPt);
201 }
202 
203 void SdrGluePoint::Mirror(const Point& rRef1, const Point& rRef2, const SdrObject* pObj)
204 {
205     Point aPt(rRef2); aPt-=rRef1;
206     long nWink=GetAngle(aPt);
207     Mirror(rRef1,rRef2,nWink,pObj);
208 }
209 
210 void SdrGluePoint::Mirror(const Point& rRef1, const Point& rRef2, long nWink, const SdrObject* pObj)
211 {
212     Point aPt(pObj!=NULL ? GetAbsolutePos(*pObj) : GetPos());
213     MirrorPoint(aPt,rRef1,rRef2);
214     // Bezugskante spiegeln
215     if(nAlign != (SDRHORZALIGN_CENTER|SDRVERTALIGN_CENTER))
216     {
217         long nAW=GetAlignAngle();
218         nAW+=2*(nWink-nAW);
219         SetAlignAngle(nAW);
220     }
221     // Austrittsrichtungen spiegeln
222     sal_uInt16 nEscDir0=nEscDir;
223     sal_uInt16 nEscDir1=0;
224     if ((nEscDir0&SDRESC_LEFT)!=0) {
225         long nEW=EscDirToAngle(SDRESC_LEFT);
226         nEW+=2*(nWink-nEW);
227         nEscDir1|=EscAngleToDir(nEW);
228     }
229     if ((nEscDir0&SDRESC_TOP)!=0) {
230         long nEW=EscDirToAngle(SDRESC_TOP);
231         nEW+=2*(nWink-nEW);
232         nEscDir1|=EscAngleToDir(nEW);
233     }
234     if ((nEscDir0&SDRESC_RIGHT)!=0) {
235         long nEW=EscDirToAngle(SDRESC_RIGHT);
236         nEW+=2*(nWink-nEW);
237         nEscDir1|=EscAngleToDir(nEW);
238     }
239     if ((nEscDir0&SDRESC_BOTTOM)!=0) {
240         long nEW=EscDirToAngle(SDRESC_BOTTOM);
241         nEW+=2*(nWink-nEW);
242         nEscDir1|=EscAngleToDir(nEW);
243     }
244     nEscDir=nEscDir1;
245     if (pObj!=NULL) SetAbsolutePos(aPt,*pObj); else SetPos(aPt);
246 }
247 
248 void SdrGluePoint::Shear(const Point& rRef, long /*nWink*/, double tn, FASTBOOL bVShear, const SdrObject* pObj)
249 {
250     Point aPt(pObj!=NULL ? GetAbsolutePos(*pObj) : GetPos());
251     ShearPoint(aPt,rRef,tn,bVShear);
252     if (pObj!=NULL) SetAbsolutePos(aPt,*pObj); else SetPos(aPt);
253 }
254 
255 void SdrGluePoint::Draw(OutputDevice& rOut, const SdrObject* pObj) const
256 {
257     Color aBackPenColor(COL_WHITE);
258     Color aForePenColor(COL_LIGHTBLUE);
259 
260     bool bMapMerk=rOut.IsMapModeEnabled();
261     Point aPt(pObj!=NULL ? GetAbsolutePos(*pObj) : GetPos());
262     aPt=rOut.LogicToPixel(aPt);
263     rOut.EnableMapMode(sal_False);
264     long x=aPt.X(),y=aPt.Y(); // Groesse erstmal fest auf 7 Pixel
265 
266     rOut.SetLineColor( aBackPenColor );
267     rOut.DrawLine(Point(x-2,y-3),Point(x+3,y+2));
268     rOut.DrawLine(Point(x-3,y-2),Point(x+2,y+3));
269     rOut.DrawLine(Point(x-3,y+2),Point(x+2,y-3));
270     rOut.DrawLine(Point(x-2,y+3),Point(x+3,y-2));
271 
272     if (bNoPercent)
273     {
274         switch (GetHorzAlign())
275         {
276             case SDRHORZALIGN_LEFT  : rOut.DrawLine(Point(x-3,y-1),Point(x-3,y+1)); break;
277             case SDRHORZALIGN_RIGHT : rOut.DrawLine(Point(x+3,y-1),Point(x+3,y+1)); break;
278         }
279 
280         switch (GetVertAlign())
281         {
282             case SDRVERTALIGN_TOP   : rOut.DrawLine(Point(x-1,y-3),Point(x+1,y-3)); break;
283             case SDRVERTALIGN_BOTTOM: rOut.DrawLine(Point(x-1,y+3),Point(x+1,y+3)); break;
284         }
285     }
286 
287     rOut.SetLineColor( aForePenColor );
288     rOut.DrawLine(Point(x-2,y-2),Point(x+2,y+2));
289     rOut.DrawLine(Point(x-2,y+2),Point(x+2,y-2));
290     rOut.EnableMapMode(bMapMerk);
291 }
292 
293 void SdrGluePoint::Invalidate(Window& rWin, const SdrObject* pObj) const
294 {
295     bool bMapMerk=rWin.IsMapModeEnabled();
296     Point aPt(pObj!=NULL ? GetAbsolutePos(*pObj) : GetPos());
297     aPt=rWin.LogicToPixel(aPt);
298     rWin.EnableMapMode(sal_False);
299     long x=aPt.X(),y=aPt.Y(); // Groesse erstmal fest auf 7 Pixel
300 
301     // #111096#
302     // do not erase background, that causes flicker (!)
303     rWin.Invalidate(Rectangle(Point(x-3,y-3),Point(x+3,y+3)), INVALIDATE_NOERASE);
304 
305     rWin.EnableMapMode(bMapMerk);
306 }
307 
308 FASTBOOL SdrGluePoint::IsHit(const Point& rPnt, const OutputDevice& rOut, const SdrObject* pObj) const
309 {
310     Point aPt(pObj!=NULL ? GetAbsolutePos(*pObj) : GetPos());
311     Size aSiz=rOut.PixelToLogic(Size(3,3));
312     Rectangle aRect(aPt.X()-aSiz.Width(),aPt.Y()-aSiz.Height(),aPt.X()+aSiz.Width(),aPt.Y()+aSiz.Height());
313     return aRect.IsInside(rPnt);
314 }
315 
316 ////////////////////////////////////////////////////////////////////////////////////////////////////
317 
318 void SdrGluePointList::Clear()
319 {
320     sal_uInt16 nAnz=GetCount();
321     for (sal_uInt16 i=0; i<nAnz; i++) {
322         delete GetObject(i);
323     }
324     aList.Clear();
325 }
326 
327 void SdrGluePointList::operator=(const SdrGluePointList& rSrcList)
328 {
329     if (GetCount()!=0) Clear();
330     sal_uInt16 nAnz=rSrcList.GetCount();
331     for (sal_uInt16 i=0; i<nAnz; i++) {
332         Insert(rSrcList[i]);
333     }
334 }
335 
336 // Die Id's der Klebepunkte in der Liste sind stets streng monoton steigend!
337 // Ggf. wird dem neuen Klebepunkt eine neue Id zugewiesen (wenn diese bereits
338 // vergeben ist). Die Id 0 ist reserviert.
339 sal_uInt16 SdrGluePointList::Insert(const SdrGluePoint& rGP)
340 {
341     SdrGluePoint* pGP=new SdrGluePoint(rGP);
342     sal_uInt16 nId=pGP->GetId();
343     sal_uInt16 nAnz=GetCount();
344     sal_uInt16 nInsPos=nAnz;
345     sal_uInt16 nLastId=nAnz!=0 ? GetObject(nAnz-1)->GetId() : 0;
346     DBG_ASSERT(nLastId>=nAnz,"SdrGluePointList::Insert(): nLastId<nAnz");
347     FASTBOOL bHole=nLastId>nAnz;
348     if (nId<=nLastId) {
349         if (!bHole || nId==0) {
350             nId=nLastId+1;
351         } else {
352             FASTBOOL bBrk=sal_False;
353             for (sal_uInt16 nNum=0; nNum<nAnz && !bBrk; nNum++) {
354                 const SdrGluePoint* pGP2=GetObject(nNum);
355                 sal_uInt16 nTmpId=pGP2->GetId();
356                 if (nTmpId==nId) {
357                     nId=nLastId+1; // bereits vorhanden
358                     bBrk=sal_True;
359                 }
360                 if (nTmpId>nId) {
361                     nInsPos=nNum; // Hier einfuegen (einsortieren)
362                     bBrk=sal_True;
363                 }
364             }
365         }
366         pGP->SetId(nId);
367     }
368     aList.Insert(pGP,nInsPos);
369     return nInsPos;
370 }
371 
372 void SdrGluePointList::Invalidate(Window& rWin, const SdrObject* pObj) const
373 {
374     sal_uInt16 nAnz=GetCount();
375     for (sal_uInt16 nNum=0; nNum<nAnz; nNum++) {
376         GetObject(nNum)->Invalidate(rWin,pObj);
377     }
378 }
379 
380 sal_uInt16 SdrGluePointList::FindGluePoint(sal_uInt16 nId) const
381 {
382     // Hier noch einen optimaleren Suchalgorithmus implementieren.
383     // Die Liste sollte stets sortiert sein!!!!
384     sal_uInt16 nAnz=GetCount();
385     sal_uInt16 nRet=SDRGLUEPOINT_NOTFOUND;
386     for (sal_uInt16 nNum=0; nNum<nAnz && nRet==SDRGLUEPOINT_NOTFOUND; nNum++) {
387         const SdrGluePoint* pGP=GetObject(nNum);
388         if (pGP->GetId()==nId) nRet=nNum;
389     }
390     return nRet;
391 }
392 
393 sal_uInt16 SdrGluePointList::HitTest(const Point& rPnt, const OutputDevice& rOut, const SdrObject* pObj, FASTBOOL bBack, FASTBOOL bNext, sal_uInt16 nId0) const
394 {
395     sal_uInt16 nAnz=GetCount();
396     sal_uInt16 nRet=SDRGLUEPOINT_NOTFOUND;
397     sal_uInt16 nNum=bBack ? 0 : nAnz;
398     while ((bBack ? nNum<nAnz : nNum>0) && nRet==SDRGLUEPOINT_NOTFOUND) {
399         if (!bBack) nNum--;
400         const SdrGluePoint* pGP=GetObject(nNum);
401         if (bNext) {
402             if (pGP->GetId()==nId0) bNext=sal_False;
403         } else {
404             if (pGP->IsHit(rPnt,rOut,pObj)) nRet=nNum;
405         }
406         if (bBack) nNum++;
407     }
408     return nRet;
409 }
410 
411 void SdrGluePointList::SetReallyAbsolute(FASTBOOL bOn, const SdrObject& rObj)
412 {
413     sal_uInt16 nAnz=GetCount();
414     for (sal_uInt16 nNum=0; nNum<nAnz; nNum++) {
415         GetObject(nNum)->SetReallyAbsolute(bOn,rObj);
416     }
417 }
418 
419 void SdrGluePointList::Rotate(const Point& rRef, long nWink, double sn, double cs, const SdrObject* pObj)
420 {
421     sal_uInt16 nAnz=GetCount();
422     for (sal_uInt16 nNum=0; nNum<nAnz; nNum++) {
423         GetObject(nNum)->Rotate(rRef,nWink,sn,cs,pObj);
424     }
425 }
426 
427 void SdrGluePointList::Mirror(const Point& rRef1, const Point& rRef2, const SdrObject* pObj)
428 {
429     Point aPt(rRef2); aPt-=rRef1;
430     long nWink=GetAngle(aPt);
431     Mirror(rRef1,rRef2,nWink,pObj);
432 }
433 
434 void SdrGluePointList::Mirror(const Point& rRef1, const Point& rRef2, long nWink, const SdrObject* pObj)
435 {
436     sal_uInt16 nAnz=GetCount();
437     for (sal_uInt16 nNum=0; nNum<nAnz; nNum++) {
438         GetObject(nNum)->Mirror(rRef1,rRef2,nWink,pObj);
439     }
440 }
441 
442 void SdrGluePointList::Shear(const Point& rRef, long nWink, double tn, FASTBOOL bVShear, const SdrObject* pObj)
443 {
444     sal_uInt16 nAnz=GetCount();
445     for (sal_uInt16 nNum=0; nNum<nAnz; nNum++) {
446         GetObject(nNum)->Shear(rRef,nWink,tn,bVShear,pObj);
447     }
448 }
449 
450 // eof
451