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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 : #ifndef _ANCHOREDOBJECTPOSITION_HXX
21 : #define _ANCHOREDOBJECTPOSITION_HXX
22 :
23 : #include <swtypes.hxx>
24 : // #i11860#
25 : #include <frame.hxx>
26 :
27 : class SdrObject;
28 : class SwFrm;
29 : class SwFlyFrm;
30 : class SwContact;
31 : class SwFrmFmt;
32 : class SwRect;
33 : class SvxLRSpaceItem;
34 : class SvxULSpaceItem;
35 : class SwFmtHoriOrient;
36 : // #i26701#
37 : class SwAnchoredObject;
38 :
39 : namespace objectpositioning
40 : {
41 : class SwEnvironmentOfAnchoredObject;
42 :
43 : class SwAnchoredObjectPosition
44 : {
45 : private:
46 : // object to be positioned
47 : SdrObject& mrDrawObj;
48 :
49 : // does the object represents a Writer fly frame
50 : bool mbIsObjFly;
51 : // #i26791# - anchored object the object belongs to;
52 : SwAnchoredObject* mpAnchoredObj;
53 : // frame the object is anchored at
54 : SwFrm* mpAnchorFrm;
55 : // contact object
56 : SwContact* mpContact;
57 : // frame format
58 : const SwFrmFmt* mpFrmFmt;
59 : // #i62875#
60 : bool mbFollowTextFlow;
61 : // #i62875#
62 : // for compatibility option <DoNotCaptureDrawObjsOnPage>
63 : bool mbDoNotCaptureAnchoredObj;
64 :
65 : /** determine information about object
66 :
67 : member <mbIsObjFly>, <mpAnchoredObj>, <mpAnchorFrm>, <mpContact>
68 : and <mpFrmFmt> are set
69 : */
70 : void _GetInfoAboutObj();
71 :
72 : // #i62875#
73 : // --> OD 2009-09-01 #mongolianlayout# - add parameter <bVertL2R>
74 : SwTwips _ImplAdjustVertRelPos( const SwTwips nTopOfAnch,
75 : const bool bVert,
76 : const bool bVertL2R,
77 : const SwFrm& rPageAlignLayFrm,
78 : const SwTwips nProposedRelPosY,
79 : const bool bFollowTextFlow,
80 : const bool bCheckBottom = true ) const;
81 : SwTwips _ImplAdjustHoriRelPos( const SwFrm& _rPageAlignLayFrm,
82 : const SwTwips _nProposedRelPosX ) const;
83 :
84 : protected:
85 : SwAnchoredObjectPosition( SdrObject& _rDrawObj );
86 : virtual ~SwAnchoredObjectPosition();
87 :
88 : // accessors for object and its corresponding data/information
89 100 : inline SdrObject& GetObject() const
90 : {
91 100 : return mrDrawObj;
92 : }
93 1210 : inline bool IsObjFly() const
94 : {
95 1210 : return mbIsObjFly;
96 : }
97 1994 : inline SwAnchoredObject& GetAnchoredObj() const
98 : {
99 1994 : return *mpAnchoredObj;
100 : }
101 1008 : inline SwFrm& GetAnchorFrm() const
102 : {
103 1008 : return *mpAnchorFrm;
104 : }
105 46 : inline SwContact& GetContact() const
106 : {
107 46 : return *mpContact;
108 : }
109 727 : inline const SwFrmFmt& GetFrmFmt() const
110 : {
111 727 : return *mpFrmFmt;
112 : }
113 : // #i62875#
114 374 : inline bool DoesObjFollowsTextFlow() const
115 : {
116 374 : return mbFollowTextFlow;
117 : }
118 :
119 : // virtual methods providing data for to character anchored objects.
120 : virtual bool IsAnchoredToChar() const;
121 : virtual const SwFrm* ToCharOrientFrm() const;
122 : virtual const SwRect* ToCharRect() const;
123 : // #i22341#
124 : virtual SwTwips ToCharTopOfLine() const;
125 :
126 : /** helper method to determine top of a frame for the vertical object
127 : positioning
128 :
129 : #i11860#
130 : */
131 : SwTwips _GetTopForObjPos( const SwFrm& _rFrm,
132 : const SwRectFn& _fnRect,
133 : const bool _bVert ) const;
134 :
135 : void _GetVertAlignmentValues( const SwFrm& _rVertOrientFrm,
136 : const SwFrm& _rPageAlignLayFrm,
137 : const sal_Int16 _eRelOrient,
138 : SwTwips& _orAlignAreaHeight,
139 : SwTwips& _orAlignAreaOffset ) const;
140 :
141 : // #i26791# - add output parameter <_roVertOffsetToFrmAnchorPos>
142 : SwTwips _GetVertRelPos( const SwFrm& _rVertOrientFrm,
143 : const SwFrm& _rPageAlignLayFrm,
144 : const sal_Int16 _eVertOrient,
145 : const sal_Int16 _eRelOrient,
146 : const SwTwips _nVertPos,
147 : const SvxLRSpaceItem& _rLRSpacing,
148 : const SvxULSpaceItem& _rULSpacing,
149 : SwTwips& _roVertOffsetToFrmAnchorPos ) const;
150 :
151 : /** adjust calculated vertical in order to keep object inside
152 : 'page' alignment layout frame.
153 :
154 : #i31805# - add parameter <_bCheckBottom>
155 : #i26945# - add parameter <_bFollowTextFlow>
156 : #i62875# - made inline, intrinsic actions moved
157 : to private method <_ImplAdjustVertRelPos>, which is only
158 : called, if <mbDoNotCaptureAnchoredObj> not set.
159 : OD 2009-09-01 #mongolianlayout# - add parameter <bVertL2R>
160 :
161 : @param nTopOfAnch
162 : input parameter - 'vertical' position, at which the relative
163 : position of the object is calculated from.
164 :
165 : @param bVert
166 : input parameter - boolean, indicating, if object is in vertical
167 : layout.
168 :
169 : @param bVertL2R
170 : input parameter - boolean, indicating, if object is in mongolian
171 : layout (vertical left-to-right layout).
172 :
173 : @param rPageAlignLayFrm
174 : input parameter - layout frame, which determines the 'page area'
175 : the object has to be vertical positioned in.
176 :
177 : @param nProposedRelPosY
178 : input parameter - proposed relative vertical position, which
179 : will be adjusted.
180 :
181 : @param bFollowTextFlow
182 : input parameter - value of attribute 'Follow text flow' of the
183 : anchored object.
184 :
185 : @param bCheckBottom
186 : input parameter - boolean indicating, if bottom of anchored
187 : object has to be checked and thus, (if needed) the proposed
188 : relative position has to be adjusted. default value <true>
189 : */
190 61 : inline SwTwips _AdjustVertRelPos( const SwTwips nTopOfAnch,
191 : const bool bVert,
192 : const bool bVertL2R,
193 : const SwFrm& rPageAlignLayFrm,
194 : const SwTwips nProposedRelPosY,
195 : const bool bFollowTextFlow,
196 : const bool bCheckBottom = true ) const
197 : {
198 61 : return !mbDoNotCaptureAnchoredObj
199 : ? _ImplAdjustVertRelPos( nTopOfAnch, bVert, bVertL2R,
200 : rPageAlignLayFrm,
201 : nProposedRelPosY,
202 : bFollowTextFlow,
203 61 : bCheckBottom )
204 122 : : nProposedRelPosY;
205 : }
206 :
207 : /** calculate relative horizontal position
208 :
209 : #i26791# - add output parameter
210 : <_roHoriOffsetToFrmAnchorPos>
211 :
212 : @param _rHoriOrientFrm
213 : input parameter - frame the horizontal position of the object
214 : is oriented at.
215 :
216 : @param _rEnvOfObj
217 : input parameter - object instance to retrieve environment
218 : information about the object
219 :
220 : @param _rHoriOrient
221 : input parameter - horizontal positioning and alignment, for which
222 : the relative position is calculated.
223 :
224 : @param _rLRSpacing
225 : input parameter - left and right spacing of the object to the text
226 :
227 : @param _rULSpacing
228 : input parameter - upper and lower spacing of the object to the text
229 :
230 : @param _bObjWrapThrough
231 : input parameter - boolean indicating, if object has wrap mode
232 : 'wrap through'.
233 :
234 : @param _nRelPosY
235 : input parameter - relative vertical position
236 :
237 : @param _roHoriOffsetToFrmAnchorPos
238 : output parameter - 'horizontal' offset to frame anchor position
239 : according to the alignment
240 :
241 : @return relative horizontal position in SwTwips
242 : */
243 : SwTwips _CalcRelPosX( const SwFrm& _rHoriOrientFrm,
244 : const SwEnvironmentOfAnchoredObject& _rEnvOfObj,
245 : const SwFmtHoriOrient& _rHoriOrient,
246 : const SvxLRSpaceItem& _rLRSpacing,
247 : const SvxULSpaceItem& _rULSpacing,
248 : const bool _bObjWrapThrough,
249 : const SwTwips _nRelPosY,
250 : SwTwips& _roHoriOffsetToFrmAnchorPos
251 : ) const;
252 :
253 : /** adjust calculated horizontal in order to keep object inside
254 : 'page' alignment layout frame for object type position TO_CNTNT
255 :
256 : #i62875# - made inline, intrinsic actions moved
257 : to private method <_ImplAdjustHoriRelPos>, which is only
258 : called, if <mbDoNotCaptureAnchoredObj> not set.
259 :
260 : @param _rPageAlignLayFrm
261 : input paramter - layout frame, which determines the 'page area'
262 : the object has to be horizontal positioned in.
263 :
264 : @param _nProposedRelPosX
265 : input parameter - proposed relative horizontal position, which
266 : will be adjusted.
267 :
268 : @return adjusted relative horizontal position in SwTwips.
269 : */
270 61 : inline SwTwips _AdjustHoriRelPos( const SwFrm& _rPageAlignLayFrm,
271 : const SwTwips _nProposedRelPosX ) const
272 : {
273 61 : return !mbDoNotCaptureAnchoredObj
274 : ? _ImplAdjustHoriRelPos( _rPageAlignLayFrm, _nProposedRelPosX )
275 61 : : _nProposedRelPosX;
276 : }
277 :
278 : /** toggle given horizontal orientation and relative alignment
279 :
280 : @param _bToggleLeftRight
281 : input parameter - boolean indicating, if horizontal orientation
282 : and relative alignment has to be toggled.
283 :
284 : @param _ioeHoriOrient
285 : input/output parameter - horizontal orientation, that is toggled,
286 : if needed.
287 :
288 : @param _iopeRelOrient
289 : optional input/output parameter (default value NULL)
290 : - if set, relative alignment, that is toggled, if needed.
291 : */
292 : void _ToggleHoriOrientAndAlign( const bool _bToggleLeftRight,
293 : sal_Int16& _ioeHoriOrient,
294 : sal_Int16& _iopeRelOrient
295 : ) const;
296 :
297 : /** determine alignment values for horizontal position of object
298 :
299 : @param _rHoriOrientFrm
300 : input parameter - frame the horizontal position of the object
301 : is oriented at.
302 :
303 : @param _rPageAlignLayFrm
304 : input paramter - layout frame, which determines the 'page area'
305 : the object has to be horizontal positioned in.
306 :
307 : @param _eRelOrient
308 : input parameter - horizontal relative alignment, for which
309 : the relative position is calculated.
310 :
311 : @param _bToggleLeftRight
312 : input parameter - boolean indicating, if left/right alignments
313 : have to be toggled.
314 :
315 : @param _bObjWrapThrough
316 : input parameter - boolean indicating, if object has wrap mode
317 : 'wrap through'.
318 : important note: value is only relevant, if _rHoriOrientFrm is
319 : a text frame.
320 :
321 : @param _orAlignAreaWidth
322 : output parameter - width in SwTwips of the area the horizontal
323 : position is aligned to.
324 :
325 : @param _orAlignAreaOffset
326 : output parameter - offset in SwTwips of the area the horizontal
327 : position is aligned to. offset is given to the 'left' of the
328 : anchor position.
329 :
330 : @param _obAlignedRelToPage
331 : output parameter - boolean indicating, that object is aligned
332 : to 'page area'.
333 : */
334 : void _GetHoriAlignmentValues( const SwFrm& _rHoriOrientFrm,
335 : const SwFrm& _rPageAlignLayFrm,
336 : const sal_Int16 _eRelOrient,
337 : const bool _bObjWrapThrough,
338 : SwTwips& _orAlignAreaWidth,
339 : SwTwips& _orAlignAreaOffset,
340 : bool& _obAlignedRelToPage ) const;
341 :
342 : /** adjust calculated horizontal position in order to draw object
343 : aside other objects with same positioning
344 :
345 : @param _rHoriOrientFrm
346 : input parameter - frame the horizontal position of the object
347 : is oriented at.
348 :
349 : @param _nProposedRelPosX
350 : input parameter - proposed relative horizontal position, which
351 : will be adjusted.
352 :
353 : @param _nRelPosY
354 : input parameter - relative vertical position
355 :
356 : @param _eHoriOrient
357 : input parameter - horizontal position of object
358 :
359 : @param _eRelOrient
360 : inpt parameter - alignment of object
361 :
362 : @param _rLRSpacing
363 : input parameter - left and right spacing of the object to the text
364 :
365 : @param _rULSpacing
366 : input parameter - upper and lower spacing of the object to the text
367 :
368 : @param _bEvenPage
369 : input parameter - boolean indicating, if object is on an even page.
370 :
371 : @return adjusted relative horizontal position in SwTwips
372 : */
373 : SwTwips _AdjustHoriRelPosForDrawAside( const SwFrm& _rHoriOrientFrm,
374 : const SwTwips _nProposedRelPosX,
375 : const SwTwips _nRelPosY,
376 : const sal_Int16 _eHoriOrient,
377 : const sal_Int16 _eRelOrient,
378 : const SvxLRSpaceItem& _rLRSpacing,
379 : const SvxULSpaceItem& _rULSpacing,
380 : const bool _bEvenPage
381 : ) const;
382 :
383 : /** detemine, if object has to draw aside given fly frame
384 :
385 : method used by <_AdjustHoriRelPosForDrawAside(..)>
386 :
387 : @param _pFly
388 : input parameter - fly frame the draw aside check is done for.
389 :
390 : @param _rObjRect
391 : input parameter - proposed object rectangle
392 :
393 : @param _pObjContext
394 : input parameter - context of the object
395 :
396 : @param _nObjIndex
397 : input parameter - index of the anchor frame of the object
398 :
399 : @param _bEvenPage
400 : input parameter - boolean indicating, if object is on an even page.
401 :
402 : @param _eHoriOrient
403 : input parameter - horizontal position of object
404 :
405 : @param _eRelOrient
406 : inpt parameter - alignment of object
407 :
408 : @return boolean indicating, if object has to be drawn aside
409 : given fly frame.
410 : */
411 : bool _DrawAsideFly( const SwFlyFrm* _pFly,
412 : const SwRect& _rObjRect,
413 : const SwFrm* _pObjContext,
414 : const sal_uLong _nObjIndex,
415 : const bool _bEvenPage,
416 : const sal_Int16 _eHoriOrient,
417 : const sal_Int16 _eRelOrient
418 : ) const;
419 :
420 : /** determine, if object has to draw aside another object
421 :
422 : the different alignments of the objects determines, if one has
423 : to draw aside another one. Thus, the given alignment are checked
424 : against each other, which one has to be drawn aside the other one.
425 : depending on parameter _bLeft check is done for left or right
426 : positioning.
427 : method used by <_DrawAsideFly(..)>
428 :
429 : @param _eRelOrient1
430 : input parameter - alignment 1
431 :
432 : @param _eRelOrient2
433 : input parameter - alignment 2
434 :
435 : @param _bLeft
436 : input parameter - boolean indicating, if check is done for left
437 : or for right positioning.
438 :
439 : @return boolean indicating, if an object with an alignment
440 : <_eRelOrient1> has to be drawn aside an object with an
441 : alignment <_eRelOrient2>
442 : */
443 : bool _Minor( sal_Int16 _eRelOrient1,
444 : sal_Int16 _eRelOrient2,
445 : bool _bLeft ) const;
446 :
447 : public:
448 : virtual void CalcPosition() = 0;
449 : };
450 : }
451 :
452 : #endif
453 :
454 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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