nss: upgrade to release 3.73
[LibreOffice.git] / include / svx / svdmrkv.hxx
blob17e9ad2b15f9cc9692b92153361e720b3d49ce52
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
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/.
9 * This file incorporates work covered by the following license notice:
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 .
20 #ifndef INCLUDED_SVX_SVDMRKV_HXX
21 #define INCLUDED_SVX_SVDMRKV_HXX
23 #include <svx/svdmark.hxx>
24 #include <svx/svdhdl.hxx>
25 #include <svx/svdsnpv.hxx>
26 #include <svx/svdtypes.hxx>
27 #include <svx/svxdllapi.h>
28 #include <o3tl/typed_flags_set.hxx>
29 #include <basegfx/range/b2drectangle.hxx>
32 class SfxViewShell;
34 // The following is not yet implemented, or just partially:
35 enum class SdrSearchOptions
37 NONE = 0x0000,
38 DEEP = 0x0001, /* recursive into group objects */
39 ALSOONMASTER = 0x0002, /* MasterPages are also scanned */
40 WHOLEPAGE = 0x0004, /* Not just the ObjList of PageView */
41 TESTMARKABLE = 0x0008, /* just markable objects/points/handles/... */
42 TESTMACRO = 0x0010, /* Just objects with macro */
43 TESTTEXTEDIT = 0x0020, /* Just TextEdit-enabled objects */
44 MARKED = 0x0040, /* Just marked objects/points/... */
45 PASS2BOUND = 0x0080, /* In case of empty search results, then 2nd. try with BoundRectHit */
46 BEFOREMARK = 0x0100, /* if one marked one found, ignore all behind that */
48 IMPISMASTER = 0x0200, /* MasterPage is being searched right now */
49 PICKMARKABLE = TESTMARKABLE,
50 PICKTEXTEDIT = DEEP | TESTMARKABLE | TESTTEXTEDIT,
51 PICKMACRO = DEEP | ALSOONMASTER | WHOLEPAGE | TESTMACRO,
53 namespace o3tl
55 template<> struct typed_flags<SdrSearchOptions> : is_typed_flags<SdrSearchOptions, 0x03ff> {};
58 enum class SdrHitKind
60 NONE, // No hit
61 Object, // Hit
62 Handle, // Marking handle
63 HelpLine, // Reference line
64 Gluepoint, // Glue point
65 TextEdit, // Open OutlinerView was hit
66 TextEditObj, // Object for SdrBeginTextEdit (Textbereich)
67 UrlField, // Field in TextObj was hit (while it is currently not edited)
68 Macro, // Object for BegMacroObj
69 MarkedObject, // Marked object (e.g. for dragging)
70 UnmarkedObject, // non-marked Object (e.g. for marking)
71 Cell // hit on a cell inside a table shape (outside of the cells text area)
74 enum class SdrViewEditMode {
75 Edit, // Also known as arrow or pointer mode
76 Create, // Tool for object creation
77 GluePointEdit // Glue point editing mode
80 /** options for ImpGetDescriptionString() */
81 enum class ImpGetDescriptionOptions
83 NONE = 0,
84 POINTS = 1,
85 GLUEPOINTS = 2,
88 class ImplMarkingOverlay;
89 class MarkingSubSelectionOverlay;
91 class SVXCORE_DLLPUBLIC SdrMarkView : public SdrSnapView
93 friend class SdrPageView;
95 // #114409#-3 Migrate selections
96 std::unique_ptr<ImplMarkingOverlay> mpMarkObjOverlay;
97 std::unique_ptr<ImplMarkingOverlay> mpMarkPointsOverlay;
98 std::unique_ptr<ImplMarkingOverlay> mpMarkGluePointsOverlay;
100 std::unique_ptr<MarkingSubSelectionOverlay> mpMarkingSubSelectionOverlay;
102 protected:
103 SdrObject* mpMarkedObj; // If not just one object ( i.e. More than one object ) is marked.
104 SdrPageView* mpMarkedPV; // If all marked objects are situated on the same PageView.
106 Point maRef1; // Persistent - Rotation center / axis of reflection
107 Point maRef2; // Persistent
108 SdrHdlList maHdlList;
110 sdr::ViewSelection maSdrViewSelection;
112 std::vector<basegfx::B2DRectangle> maSubSelectionList;
113 tools::Rectangle maMarkedObjRect;
114 tools::Rectangle maMarkedPointsRect;
115 tools::Rectangle maMarkedGluePointsRect;
117 static constexpr sal_uInt16 mnFrameHandlesLimit = 50;
119 SdrDragMode meDragMode; // Persistent
120 SdrViewEditMode meEditMode; // Persistent
121 SdrViewEditMode meEditMode0; // Persistent
123 bool mbDesignMode : 1; // DesignMode for SdrUnoObj
124 bool mbForceFrameHandles : 1; // Persistent - FrameDrag also for single objects
125 bool mbPlusHdlAlways : 1; // Persistent
126 bool mbInsPolyPoint : 1; // at this time InsPolyPointDragging
127 bool mbMarkedObjRectDirty : 1;
128 bool mbMrkPntDirty : 1;
129 bool mbMarkedPointsRectsDirty : 1;
131 // flag to completely disable handles at the view
132 bool mbMarkHandlesHidden : 1;
134 // Helper to get a possible GridOffset from SdrObject
135 bool getPossibleGridOffsetForSdrObject(
136 basegfx::B2DVector& rOffset,
137 const SdrObject* pObj,
138 const SdrPageView* pPV) const;
140 // Helper to get a possible GridOffset from Position
141 bool getPossibleGridOffsetForPosition(
142 basegfx::B2DVector& rOffset,
143 const basegfx::B2DPoint& rPoint,
144 const SdrPageView* pPV) const;
146 private:
147 SVX_DLLPRIVATE void ImpSetPointsRects() const;
148 void UndirtyMrkPnt() const;
150 void SetMarkHandlesForLOKit(tools::Rectangle const & rRect, const SfxViewShell* pOtherShell);
152 protected:
153 virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint) override;
154 virtual void ModelHasChanged() override; // Is called by the PaintView
155 virtual void SetMarkHandles(SfxViewShell* pOtherShell); // maHdlList - fill (List of handles)
156 void SetMarkRects(); // Rects at the PageViews
157 void CheckMarked(); // Scan MarkList after Del and Lock Layer ...
158 void AddDragModeHdl(SdrDragMode eMode);
159 virtual bool MouseMove(const MouseEvent& rMEvt, OutputDevice* pWin) override;
160 virtual bool RequestHelp(const HelpEvent& rHEvt) override;
162 // add custom handles (used by other apps, e.g. AnchorPos)
163 virtual void AddCustomHdl();
165 void ForceRefToMarked();
166 void ForceUndirtyMrkPnt() const { if (mbMrkPntDirty) UndirtyMrkPnt(); }
168 virtual SdrObject* CheckSingleSdrObjectHit(const Point& rPnt, sal_uInt16 nTol, SdrObject* pObj, SdrPageView* pPV, SdrSearchOptions nOptions, const SdrLayerIDSet* pMVisLay) const;
169 SdrObject* CheckSingleSdrObjectHit(const Point& rPnt, sal_uInt16 nTol, SdrObjList const * pOL, SdrPageView* pPV, SdrSearchOptions nOptions, const SdrLayerIDSet* pMVisLay, SdrObject*& rpRootObj) const;
170 SdrObject* CheckSingleSdrObjectHit(const Point& rPnt, sal_uInt16 nTol, SdrObjList const * pOL, SdrPageView* pPV, SdrSearchOptions nOptions, const SdrLayerIDSet* pMVisLay, SdrObject*& rpRootObj,const SdrMarkList * pMarkList) const;
171 bool ImpIsFrameHandles() const;
172 OUString ImpGetDescriptionString(const char* pStrCacheID, ImpGetDescriptionOptions nOpt=ImpGetDescriptionOptions::NONE) const;
174 // Generates a string including degrees symbol, from an angel specification in 1/100deg
175 bool ImpMarkPoint(SdrHdl* pHdl, SdrMark* pMark, bool bUnmark);
176 virtual bool MarkPoints(const tools::Rectangle* pRect, bool bUnmark);
177 bool MarkGluePoints(const tools::Rectangle* pRect, bool bUnmark);
179 void SetMoveOutside(bool bOn);
180 bool MarkableObjectsExceed( int n ) const;
182 protected:
183 // #i71538# make constructors of SdrView sub-components protected to avoid incomplete incarnations which may get casted to SdrView
184 SdrMarkView(
185 SdrModel& rSdrModel,
186 OutputDevice* pOut);
188 virtual ~SdrMarkView() override;
190 public:
191 virtual bool IsAction() const override;
192 virtual void MovAction(const Point& rPnt) override;
193 virtual void EndAction() override;
194 virtual void BckAction() override;
195 virtual void BrkAction() override;
196 virtual void TakeActionRect(tools::Rectangle& rRect) const override;
198 virtual void ClearPageView() override;
199 virtual void HideSdrPage() override;
200 bool IsObjMarkable(SdrObject const * pObj, SdrPageView const * pPV) const;
202 // Returns sal_True if objects, points or glue points are selected by drawing a frame
203 // (as long as the frame is drawn).
204 bool IsMarking() const { return IsMarkObj() || IsMarkPoints() || IsMarkGluePoints(); }
206 // Marking objects by drawing of a selection frame
207 void BegMarkObj(const Point& rPnt, bool bUnmark = false);
208 void MovMarkObj(const Point& rPnt);
209 bool EndMarkObj();
210 void BrkMarkObj();
211 bool IsMarkObj() const { return (nullptr != mpMarkObjOverlay); }
213 // DragModes: SDRDRAG_CREATE,SdrDragMode::Move,SdrDragMode::Resize,SdrDragMode::Rotate,SdrDragMode::Mirror,SdrDragMode::Shear,SdrDragMode::Crook
214 // Move==Resize
215 // The interface might maybe be changed in the future because of Ortho-Drag
216 void SetDragMode(SdrDragMode eMode);
217 SdrDragMode GetDragMode() const { return meDragMode; }
218 void SetFrameHandles(bool bOn);
219 bool IsFrameHandles() const { return mbForceFrameHandles; }
221 // returns true if number of markable objects is greater than 1
222 bool HasMultipleMarkableObjects() const { return MarkableObjectsExceed(1); };
224 void SetEditMode(SdrViewEditMode eMode);
225 SdrViewEditMode GetEditMode() const { return meEditMode; }
227 void SetEditMode(bool bOn) { SetEditMode(bOn?SdrViewEditMode::Edit:SdrViewEditMode::Create); }
228 bool IsEditMode() const { return meEditMode==SdrViewEditMode::Edit; }
229 void SetCreateMode(bool bOn) { SetEditMode(bOn?SdrViewEditMode::Create:SdrViewEditMode::Edit); }
230 bool IsCreateMode() const { return meEditMode==SdrViewEditMode::Create; }
231 void SetGluePointEditMode(bool bOn) { SetEditMode(bOn?SdrViewEditMode::GluePointEdit:meEditMode0); }
232 bool IsGluePointEditMode() const { return meEditMode==SdrViewEditMode::GluePointEdit; }
234 void SetDesignMode(bool bOn = true);
235 bool IsDesignMode() const { return mbDesignMode; }
237 void SetFrameDragSingles(bool bOn=true) { SetFrameHandles(bOn); }
238 bool IsFrameDragSingles() const { return IsFrameHandles(); }
240 bool HasMarkableObj() const { return MarkableObjectsExceed(0); };
243 // migrate selections
245 protected:
246 // all available changing methods
247 SdrMarkList& GetMarkedObjectListWriteAccess() { return maSdrViewSelection.GetMarkedObjectListWriteAccess(); }
249 public:
250 // all available const methods for read access to selection
251 const SdrMarkList& GetMarkedObjectList() const { return maSdrViewSelection.GetMarkedObjectList(); }
252 // returns SAL_MAX_SIZE if not found
253 size_t TryToFindMarkedObject(const SdrObject* pObj) const { return GetMarkedObjectList().FindObject(pObj); }
254 SdrPageView* GetSdrPageViewOfMarkedByIndex(size_t nNum) const { return GetMarkedObjectList().GetMark(nNum)->GetPageView(); }
255 SdrMark* GetSdrMarkByIndex(size_t nNum) const { return GetMarkedObjectList().GetMark(nNum); }
256 SdrObject* GetMarkedObjectByIndex(size_t nNum) const { return GetMarkedObjectList().GetMark(nNum)->GetMarkedSdrObj(); }
257 size_t GetMarkedObjectCount() const { return GetMarkedObjectList().GetMarkCount(); }
258 void SortMarkedObjects() const { GetMarkedObjectList().ForceSort(); }
259 bool AreObjectsMarked() const { return 0 != GetMarkedObjectList().GetMarkCount(); }
260 OUString const & GetDescriptionOfMarkedObjects() const { return GetMarkedObjectList().GetMarkDescription(); }
261 OUString const & GetDescriptionOfMarkedPoints() const { return GetMarkedObjectList().GetPointMarkDescription(); }
262 OUString const & GetDescriptionOfMarkedGluePoints() const { return GetMarkedObjectList().GetGluePointMarkDescription(); }
264 // Get a list of all those links which are connected to marked nodes,
265 // but which are not marked themselves.
266 const SdrMarkList& GetEdgesOfMarkedNodes() const { return maSdrViewSelection.GetEdgesOfMarkedNodes(); }
267 const SdrMarkList& GetMarkedEdgesOfMarkedNodes() const { return maSdrViewSelection.GetMarkedEdgesOfMarkedNodes(); }
268 const std::vector<SdrObject*>& GetTransitiveHullOfMarkedObjects() const { return maSdrViewSelection.GetAllMarkedObjects(); }
271 // mechanism to complete disable handles at the view. Handles will be hidden and deleted
272 // when set, no new ones created, no interaction allowed. Handles will be recreated and shown
273 // when reset. Default is false.
274 void hideMarkHandles();
275 void showMarkHandles();
276 bool areMarkHandlesHidden() const { return mbMarkHandlesHidden; }
278 bool IsMarkedHit(const Point& rPnt, short nTol=-2) const { return IsMarkedObjHit(rPnt,nTol); }
279 bool IsMarkedObjHit(const Point& rPnt, short nTol=-2) const;
281 SdrHdl* PickHandle(const Point& rPnt) const;
283 // Pick: Supported options for nOptions are:
284 // SdrSearchOptions::DEEP SdrSearchOptions::ALSOONMASTER SdrSearchOptions::TESTMARKABLE SdrSearchOptions::TESTTEXTEDIT
285 // SdrSearchOptions::MARKED
286 // SdrSearchOptions::WHOLEPAGE
287 SdrObject* PickObj(const Point& rPnt, short nTol, SdrPageView*& rpPV, SdrSearchOptions nOptions, SdrObject** ppRootObj, bool* pbHitPassDirect=nullptr) const;
288 SdrObject* PickObj(const Point& rPnt, short nTol, SdrPageView*& rpPV, SdrSearchOptions nOptions=SdrSearchOptions::NONE) const;
289 bool MarkObj(const Point& rPnt, short nTol=-2, bool bToggle=false, bool bDeep=false);
291 // Pick: Supported options for nOptions are SdrSearchOptions::PASS2BOUND
292 bool PickMarkedObj(const Point& rPnt, SdrObject*& rpObj, SdrPageView*& rpPV, SdrSearchOptions nOptions) const;
294 // Selects the most upper of the marked objects (O1) and scans from there
295 // towards bottom direction, selecting the first non-marked object (O2).
296 // In case of success the marking of O1 is deleted, a marking is created at
297 // O2 and TRUE is returned. With the parameter bPrev=sal_True the scan
298 // direction is turned to the other direction.
299 bool MarkNextObj(bool bPrev=false);
301 // Selects the most upper of the marked objects which is hit by rPnt/nTol
302 // and scans from there to bottom direction, selecting the first non-marked
303 // object (O2). In case of success the marking of O1 is deleted, a marking
304 // is created at O2 and sal_True is returned. With the parameter
305 // bPrev=sal_True the scan direction is turned to the other direction.
306 bool MarkNextObj(const Point& rPnt, short nTol, bool bPrev);
308 // Mark all objects within a rectangular area
309 // Just objects are marked which are inclosed completely
310 void MarkObj(const tools::Rectangle& rRect, bool bUnmark);
311 void MarkObj(SdrObject* pObj, SdrPageView* pPV, bool bUnmark = false, bool bDoNoSetMarkHdl = false,
312 std::vector<basegfx::B2DRectangle> const & rSubSelections = std::vector<basegfx::B2DRectangle>());
313 void MarkAllObj(SdrPageView* pPV=nullptr); // pPage=NULL => all displayed pages
314 void UnmarkAllObj(SdrPageView const * pPV=nullptr); // pPage=NULL => all displayed pages
316 // This function is time-consuming intensive, as the MarkList has to be scanned.
317 bool IsObjMarked(SdrObject const * pObj) const;
318 void UnMarkAll(SdrPageView const * pPV=nullptr) { UnmarkAllObj(pPV); }
320 // Request/set the size of the marking handles. Declaration in Pixel.
321 // The value is meant to be the edge length ( link length ).
322 // Pair values are round up to impair values: 3->3, 4->5, 5->5, 6->7, 7->7, ...
323 // Default value is 7, minimum value is 3 Pixels.
324 sal_uInt16 GetMarkHdlSizePixel() const;
325 void SetMarkHdlSizePixel(sal_uInt16 nSiz);
327 virtual bool HasMarkablePoints() const;
328 virtual sal_Int32 GetMarkablePointCount() const;
329 virtual bool HasMarkedPoints() const;
331 // There might be points which can't be marked:
332 bool IsPointMarkable(const SdrHdl& rHdl) const;
333 virtual bool MarkPoint(SdrHdl& rHdl, bool bUnmark=false);
335 /** should only be used from outside svx for special ui elements */
336 bool MarkPointHelper(SdrHdl* pHdl, SdrMark* pMark, bool bUnmark);
338 bool UnmarkPoint(SdrHdl& rHdl) { return MarkPoint(rHdl,true); }
339 bool IsPointMarked(const SdrHdl& rHdl) const { ForceUndirtyMrkPnt(); return rHdl.IsSelected(); }
340 bool MarkAllPoints() { return MarkPoints(nullptr,false); }
341 bool UnmarkAllPoints() { return MarkPoints(nullptr,true); }
343 // Selects the first marked point (P1) which is hit by rPnt
344 // and from there it searches the first non-marked point(P2).
345 // In case of success the marking of
346 // P1 is deleted, a mark is set at P2.
347 void MarkNextPoint();
349 // Search for the number of the suitable handle. In case of empty search result,
350 // SAL_MAX_SIZE is returned.
351 size_t GetHdlNum(SdrHdl const * pHdl) const { return maHdlList.GetHdlNum(pHdl); }
352 SdrHdl* GetHdl(size_t nHdlNum) const { return maHdlList.GetHdl(nHdlNum); }
353 const SdrHdlList& GetHdlList() const { return maHdlList; }
355 // Draw a selection frame for marking of points.
356 // This routine will just be started in case that HasMarkablePoints() returns sal_True.
357 bool BegMarkPoints(const Point& rPnt, bool bUnmark = false);
358 void MovMarkPoints(const Point& rPnt);
359 bool EndMarkPoints();
360 void BrkMarkPoints();
361 bool IsMarkPoints() const { return (nullptr != mpMarkPointsOverlay); }
363 // Select that additional handles are displayed permanently.
364 void SetPlusHandlesAlwaysVisible(bool bOn);
365 bool IsPlusHandlesAlwaysVisible() const { return mbPlusHdlAlways; }
367 bool HasMarkableGluePoints() const;
368 bool HasMarkedGluePoints() const;
370 // A gluepoint is clearly identified by the SdrObject
371 // (to which it belongs) as well as by a sal_uInt16 nId (as each SdrObject may consist of
372 // several glue points. Here at the View there is an additional
373 // SdrPageView, which should be defined correctly always.
374 // Alternatively a gluepoint may be characterized by a SdrHdl.
375 // In this case the SdrHdl instance consists of all required information.
376 // And in this case, the glue point are always is marked by enforcement
377 // (Handlers are just situated at marked gluepoints )
378 // Attention: With each change of the glue point status the handle list is re-calculated.
379 // All previously saved SdrHdl* became invalid by this, the same with the point IDs!
380 bool PickGluePoint(const Point& rPnt, SdrObject*& rpObj, sal_uInt16& rnId, SdrPageView*& rpPV) const;
381 bool MarkGluePoint(const SdrObject* pObj, sal_uInt16 nId, bool bUnmark);
382 void UnmarkGluePoint(const SdrObject* pObj, sal_uInt16 nId) { MarkGluePoint(pObj,nId,true); }
383 bool IsGluePointMarked(const SdrObject* pObj, sal_uInt16 nId) const;
385 // Get the Hdl (handle) of a marked GluePoint. Non-marked
386 // GluePoints don`t have handles
387 SdrHdl* GetGluePointHdl(const SdrObject* pObj, sal_uInt16 nId) const;
389 // Mark all points within this rectangular (View coordinates)
390 bool MarkAllGluePoints() { return MarkGluePoints(nullptr,false); }
391 bool UnmarkAllGluePoints() { return MarkGluePoints(nullptr,true); }
393 // Selects the first marked point (P1) which is hit by rPnt
394 // and from there it searches the first non-marked point(P2).
395 // In case of success the marking of
396 // P1 is deleted, a mark is set at P2.
397 void MarkNextGluePoint();
399 // Draw a selection frame for glue point marking.
400 // This routine will just be started in case that HasMarkablePoints() returns sal_True.
401 // The GlueEditMode sal_True is disregarded.
402 // bool BegMarkGluePoints(const Point& rPnt, OutputDevice* pOut);
403 bool BegMarkGluePoints(const Point& rPnt, bool bUnmark = false);
404 void MovMarkGluePoints(const Point& rPnt);
405 void EndMarkGluePoints();
406 void BrkMarkGluePoints();
407 bool IsMarkGluePoints() const { return (nullptr != mpMarkGluePointsOverlay); }
409 // bRestraintPaint=sal_False causes the handles not to be drawn immediately.
410 // AdjustMarkHdl is just called in case of changes; usually this causes an Invalidate
411 // At the end of a redraw the handles are drawn automatically.
412 // The purpose is to avoid unnecessary flickering. -> This does not yet work, that's why sal_True!
413 void AdjustMarkHdl(SfxViewShell* pOtherShell = nullptr); //HMHBOOL bRestraintPaint=sal_True);
415 const tools::Rectangle& GetMarkedObjRect() const; // SnapRects of Objects, without line width
416 tools::Rectangle GetMarkedObjBoundRect() const; // incl. line width, overlapping rags, ...
417 const tools::Rectangle& GetMarkedPointsRect() const; // Enclosing rectangle of all marked points
418 const tools::Rectangle& GetMarkedGluePointsRect() const; // Enclosing rectangle of all marked glue points
419 const tools::Rectangle& GetAllMarkedRect() const { return GetMarkedObjRect(); }
420 tools::Rectangle GetAllMarkedBoundRect() const { return GetMarkedObjBoundRect(); }
422 // Will be always called, if the list of marked objects might be changed.
423 // If you override this method, be sure that you call the
424 // methods of the base class!
425 virtual void MarkListHasChanged();
427 // Entering (Editing) of a maybe marked object group. If there are several
428 // object groups marked, the most upper group is selected. After that
429 // all member objects of the group are directly accessible. All other
430 // objects may not be processed in the meantime (until the next
431 // LeaveGroup()). With markings which overlaps pages, every page is processed
432 // separately. The method returns sal_True, if at least one group was entered.
433 void EnterMarkedGroup();
435 // Rotation center point and start point of the axis of reflection, respectively
436 const Point& GetRef1() const { return maRef1; }
437 void SetRef1(const Point& rPt);
439 // End point of the axis of reflection
440 const Point& GetRef2() const { return maRef2; }
441 void SetRef2(const Point& rPt);
442 /// Get access to the view shell owning this draw view, if any.
443 virtual SfxViewShell* GetSfxViewShell() const;
447 // - Hit tolerances:
448 // It has to be declared in logical coordinates. So please translate the
449 // wanted pixel value with PixelToLogic in Logical values.
450 // Taking as example a logical value of 100:
451 // - For a horizontal hairline (Object with height 0), the generated data is +/-100, i.e.
452 // a vertical area of 200 logical units is sensitive.
453 // - For a polygon, a rectangular of the size (200,200) is generated and a
454 // touch test between Poly and this Rect is processed.
455 // - Objects which respond SdrObject::HasEdit()==TRUE ( e.g. a text frame ),
456 // are specially treated: An additional sensitive area with a width of
457 // 2*Tol (200 units for this example) is created around the object.
458 // When an object is directly hit, the Edit method is called.
459 // In opposite, a hit in the surrounding sensitive area enables Dragging.
462 #endif // INCLUDED_SVX_SVDMRKV_HXX
464 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */