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[wxWidgets.git] / include / wx / propgrid / propgridpagestate.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: wx/propgrid/propgridpagestate.h
3 // Purpose: wxPropertyGridPageState class
4 // Author: Jaakko Salli
5 // Modified by:
6 // Created: 2008-08-24
7 // RCS-ID: $Id$
8 // Copyright: (c) Jaakko Salli
9 // Licence: wxWindows license
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_PROPGRID_PROPGRIDPAGESTATE_H_
13 #define _WX_PROPGRID_PROPGRIDPAGESTATE_H_
14
15 #if wxUSE_PROPGRID
16
17 #include "wx/propgrid/property.h"
18
19 // -----------------------------------------------------------------------
20
21 /** @section propgrid_hittestresult wxPropertyGridHitTestResult
22
23 A return value from wxPropertyGrid::HitTest(),
24 contains all you need to know about an arbitrary location on the grid.
25 */
26 struct WXDLLIMPEXP_PROPGRID wxPropertyGridHitTestResult
27 {
28 friend class wxPropertyGridPageState;
29 public:
30
31 wxPGProperty* GetProperty() const { return property; }
32
33 /** Column. -1 for margin. */
34 int column;
35
36 /** Index of splitter hit, -1 for none. */
37 int splitter;
38
39 /** If splitter hit, offset to that */
40 int splitterHitOffset;
41
42 private:
43 /** Property. NULL if empty space below properties was hit */
44 wxPGProperty* property;
45 };
46
47 // -----------------------------------------------------------------------
48
49 #define wxPG_IT_CHILDREN(A) ((A)<<16)
50
51 /** @section propgrid_iterator_flags wxPropertyGridIterator Flags
52 @{
53
54 NOTES: At lower 16-bits, there are flags to check if item will be included.
55 At higher 16-bits, there are same flags, but to instead check if children
56 will be included.
57 */
58
59 enum wxPG_ITERATOR_FLAGS
60 {
61
62 /**
63 Iterate through 'normal' property items (does not include children of
64 aggregate or hidden items by default).
65 */
66 wxPG_ITERATE_PROPERTIES = wxPG_PROP_PROPERTY |
67 wxPG_PROP_MISC_PARENT |
68 wxPG_PROP_AGGREGATE |
69 wxPG_PROP_COLLAPSED |
70 wxPG_IT_CHILDREN(wxPG_PROP_MISC_PARENT) |
71 wxPG_IT_CHILDREN(wxPG_PROP_CATEGORY),
72
73 /** Iterate children of collapsed parents, and individual items that are hidden.
74 */
75 wxPG_ITERATE_HIDDEN = wxPG_PROP_HIDDEN |
76 wxPG_IT_CHILDREN(wxPG_PROP_COLLAPSED),
77
78 /**
79 Iterate children of parent that is an aggregate property (ie has fixed
80 children).
81 */
82 wxPG_ITERATE_FIXED_CHILDREN = wxPG_IT_CHILDREN(wxPG_PROP_AGGREGATE) |
83 wxPG_ITERATE_PROPERTIES,
84
85 /** Iterate categories.
86 Note that even without this flag, children of categories are still iterated
87 through.
88 */
89 wxPG_ITERATE_CATEGORIES = wxPG_PROP_CATEGORY |
90 wxPG_IT_CHILDREN(wxPG_PROP_CATEGORY) |
91 wxPG_PROP_COLLAPSED,
92
93 wxPG_ITERATE_ALL_PARENTS = wxPG_PROP_MISC_PARENT |
94 wxPG_PROP_AGGREGATE |
95 wxPG_PROP_CATEGORY,
96
97 wxPG_ITERATE_ALL_PARENTS_RECURSIVELY = wxPG_ITERATE_ALL_PARENTS |
98 wxPG_IT_CHILDREN(
99 wxPG_ITERATE_ALL_PARENTS),
100
101 wxPG_ITERATOR_FLAGS_ALL = wxPG_PROP_PROPERTY |
102 wxPG_PROP_MISC_PARENT |
103 wxPG_PROP_AGGREGATE |
104 wxPG_PROP_HIDDEN |
105 wxPG_PROP_CATEGORY |
106 wxPG_PROP_COLLAPSED,
107
108 wxPG_ITERATOR_MASK_OP_ITEM = wxPG_ITERATOR_FLAGS_ALL,
109
110 // (wxPG_PROP_MISC_PARENT|wxPG_PROP_AGGREGATE|wxPG_PROP_CATEGORY)
111 wxPG_ITERATOR_MASK_OP_PARENT = wxPG_ITERATOR_FLAGS_ALL,
112
113 /** Combines all flags needed to iterate through visible properties
114 (ie hidden properties and children of collapsed parents are skipped).
115 */
116 wxPG_ITERATE_VISIBLE = wxPG_ITERATE_PROPERTIES |
117 wxPG_PROP_CATEGORY |
118 wxPG_IT_CHILDREN(wxPG_PROP_AGGREGATE),
119
120 /** Iterate all items.
121 */
122 wxPG_ITERATE_ALL = wxPG_ITERATE_VISIBLE |
123 wxPG_ITERATE_HIDDEN,
124
125 /** Iterate through individual properties (ie categories and children of
126 aggregate properties are skipped).
127 */
128 wxPG_ITERATE_NORMAL = wxPG_ITERATE_PROPERTIES |
129 wxPG_ITERATE_HIDDEN,
130
131 /** Default iterator flags.
132 */
133 wxPG_ITERATE_DEFAULT = wxPG_ITERATE_NORMAL
134
135 };
136
137 /** @}
138 */
139
140
141 #define wxPG_ITERATOR_CREATE_MASKS(FLAGS, A, B) \
142 A = (FLAGS ^ wxPG_ITERATOR_MASK_OP_ITEM) & \
143 wxPG_ITERATOR_MASK_OP_ITEM & 0xFFFF; \
144 B = ((FLAGS>>16) ^ wxPG_ITERATOR_MASK_OP_PARENT) & \
145 wxPG_ITERATOR_MASK_OP_PARENT & 0xFFFF;
146
147
148 // Macro to test if children of PWC should be iterated through
149 #define wxPG_ITERATOR_PARENTEXMASK_TEST(PWC, PARENTMASK) \
150 ( \
151 !(PWC->GetFlags() & PARENTMASK) && \
152 PWC->GetChildCount() \
153 )
154
155
156 // Base for wxPropertyGridIterator classes.
157 class WXDLLIMPEXP_PROPGRID wxPropertyGridIteratorBase
158 {
159 public:
160 wxPropertyGridIteratorBase()
161 {
162 }
163
164 void Assign( const wxPropertyGridIteratorBase& it );
165
166 bool AtEnd() const { return m_property == NULL; }
167
168 /** Get current property.
169 */
170 wxPGProperty* GetProperty() const { return m_property; }
171
172 void Init( wxPropertyGridPageState* state,
173 int flags,
174 wxPGProperty* property,
175 int dir = 1 );
176
177 void Init( wxPropertyGridPageState* state,
178 int flags,
179 int startPos = wxTOP,
180 int dir = 0 );
181
182 /** Iterate to the next property.
183 */
184 void Next( bool iterateChildren = true );
185
186 /** Iterate to the previous property.
187 */
188 void Prev();
189
190 /**
191 Set base parent, ie a property when, in which iteration returns, it
192 ends.
193
194 Default base parent is the root of the used wxPropertyGridPageState.
195 */
196 void SetBaseParent( wxPGProperty* baseParent )
197 { m_baseParent = baseParent; }
198
199 protected:
200
201 wxPGProperty* m_property;
202
203 private:
204 wxPropertyGridPageState* m_state;
205 wxPGProperty* m_baseParent;
206
207 // Masks are used to quickly exclude items
208 int m_itemExMask;
209 int m_parentExMask;
210 };
211
212
213 #define wxPG_IMPLEMENT_ITERATOR(CLASS, PROPERTY, STATE) \
214 CLASS( STATE* state, int flags = wxPG_ITERATE_DEFAULT, \
215 PROPERTY* property = NULL, int dir = 1 ) \
216 : wxPropertyGridIteratorBase() \
217 { Init( (wxPropertyGridPageState*)state, flags, \
218 (wxPGProperty*)property, dir ); } \
219 CLASS( STATE* state, int flags, int startPos, int dir = 0 ) \
220 : wxPropertyGridIteratorBase() \
221 { Init( (wxPropertyGridPageState*)state, flags, startPos, dir ); } \
222 CLASS() \
223 : wxPropertyGridIteratorBase() \
224 { \
225 m_property = NULL; \
226 } \
227 CLASS( const CLASS& it ) \
228 : wxPropertyGridIteratorBase( ) \
229 { \
230 Assign(it); \
231 } \
232 ~CLASS() \
233 { \
234 } \
235 const CLASS& operator=( const CLASS& it ) \
236 { \
237 if (this != &it) \
238 Assign(it); \
239 return *this; \
240 } \
241 CLASS& operator++() { Next(); return *this; } \
242 CLASS operator++(int) { CLASS it=*this;Next();return it; } \
243 CLASS& operator--() { Prev(); return *this; } \
244 CLASS operator--(int) { CLASS it=*this;Prev();return it; } \
245 PROPERTY* operator *() const { return (PROPERTY*)m_property; } \
246 static PROPERTY* OneStep( STATE* state, \
247 int flags = wxPG_ITERATE_DEFAULT, \
248 PROPERTY* property = NULL, \
249 int dir = 1 ) \
250 { \
251 CLASS it( state, flags, property, dir ); \
252 if ( property ) \
253 { \
254 if ( dir == 1 ) it.Next(); \
255 else it.Prev(); \
256 } \
257 return *it; \
258 }
259
260
261 /** @class wxPropertyGridIterator
262
263 Preferable way to iterate through contents of wxPropertyGrid,
264 wxPropertyGridManager, and wxPropertyGridPage.
265
266 See wxPropertyGridInterface::GetIterator() for more information about usage.
267
268 @library{wxpropgrid}
269 @category{propgrid}
270 */
271 class WXDLLIMPEXP_PROPGRID
272 wxPropertyGridIterator : public wxPropertyGridIteratorBase
273 {
274 public:
275
276 wxPG_IMPLEMENT_ITERATOR(wxPropertyGridIterator,
277 wxPGProperty,
278 wxPropertyGridPageState)
279
280 protected:
281 };
282
283
284 // Const version of wxPropertyGridIterator.
285 class WXDLLIMPEXP_PROPGRID
286 wxPropertyGridConstIterator : public wxPropertyGridIteratorBase
287 {
288 public:
289 wxPG_IMPLEMENT_ITERATOR(wxPropertyGridConstIterator,
290 const wxPGProperty,
291 const wxPropertyGridPageState)
292
293 /**
294 Additional copy constructor.
295 */
296 wxPropertyGridConstIterator( const wxPropertyGridIterator& other )
297 {
298 Assign(other);
299 }
300
301 /**
302 Additional assignment operator.
303 */
304 const wxPropertyGridConstIterator& operator=( const wxPropertyGridIterator& it )
305 {
306 Assign(it);
307 return *this;
308 }
309
310 protected:
311 };
312
313 // -----------------------------------------------------------------------
314
315 /** Base class to derive new viterators.
316 */
317 class WXDLLIMPEXP_PROPGRID wxPGVIteratorBase
318 {
319 friend class wxPGVIterator;
320 public:
321 wxPGVIteratorBase() { m_refCount = 1; }
322 virtual void Next() = 0;
323 void IncRef()
324 {
325 m_refCount++;
326 }
327 void DecRef()
328 {
329 m_refCount--;
330 if ( m_refCount <= 0 )
331 delete this;
332 }
333 protected:
334 virtual ~wxPGVIteratorBase() { }
335
336 wxPropertyGridIterator m_it;
337 private:
338 int m_refCount;
339 };
340
341 /** @class wxPGVIterator
342
343 Abstract implementation of a simple iterator. Can only be used
344 to iterate in forward order, and only through the entire container.
345 Used to have functions dealing with all properties work with both
346 wxPropertyGrid and wxPropertyGridManager.
347 */
348 class WXDLLIMPEXP_PROPGRID wxPGVIterator
349 {
350 public:
351 wxPGVIterator() { m_pIt = NULL; }
352 wxPGVIterator( wxPGVIteratorBase* obj ) { m_pIt = obj; }
353 ~wxPGVIterator() { UnRef(); }
354 void UnRef() { if (m_pIt) m_pIt->DecRef(); }
355 wxPGVIterator( const wxPGVIterator& it )
356 {
357 m_pIt = it.m_pIt;
358 m_pIt->IncRef();
359 }
360 #ifndef SWIG
361 const wxPGVIterator& operator=( const wxPGVIterator& it )
362 {
363 if (this != &it)
364 {
365 UnRef();
366 m_pIt = it.m_pIt;
367 m_pIt->IncRef();
368 }
369 return *this;
370 }
371 #endif
372 void Next() { m_pIt->Next(); }
373 bool AtEnd() const { return m_pIt->m_it.AtEnd(); }
374 wxPGProperty* GetProperty() const { return m_pIt->m_it.GetProperty(); }
375 protected:
376 wxPGVIteratorBase* m_pIt;
377 };
378
379 // -----------------------------------------------------------------------
380
381 #ifndef SWIG
382 // We won't need this class from wxPython
383
384 /** @class wxPropertyGridPageState
385
386 Contains low-level property page information (properties, column widths,
387 etc) of a single wxPropertyGrid or single wxPropertyGridPage. Generally you
388 should not use this class directly, but instead member functions in
389 wxPropertyGridInterface, wxPropertyGrid, wxPropertyGridPage, and
390 wxPropertyGridManager.
391
392 @remarks
393 - In separate wxPropertyGrid component this class was known as
394 wxPropertyGridState.
395 - Currently this class is not implemented in wxPython.
396
397 @library{wxpropgrid}
398 @category{propgrid}
399 */
400 class WXDLLIMPEXP_PROPGRID wxPropertyGridPageState
401 {
402 friend class wxPGProperty;
403 friend class wxPropertyGrid;
404 friend class wxPGCanvas;
405 friend class wxPropertyGridInterface;
406 friend class wxPropertyGridPage;
407 friend class wxPropertyGridManager;
408 public:
409
410 /** Default constructor. */
411 wxPropertyGridPageState();
412
413 /** Destructor. */
414 virtual ~wxPropertyGridPageState();
415
416 /** Makes sure all columns have minimum width.
417 */
418 void CheckColumnWidths( int widthChange = 0 );
419
420 /**
421 Override this member function to add custom behavior on property
422 deletion.
423 */
424 virtual void DoDelete( wxPGProperty* item, bool doDelete = true );
425
426 wxSize DoFitColumns( bool allowGridResize = false );
427
428 wxPGProperty* DoGetItemAtY( int y ) const;
429
430 /**
431 Override this member function to add custom behavior on property
432 insertion.
433 */
434 virtual wxPGProperty* DoInsert( wxPGProperty* parent,
435 int index,
436 wxPGProperty* property );
437
438 /**
439 This needs to be overridden in grid used the manager so that splitter
440 changes can be propagated to other pages.
441 */
442 virtual void DoSetSplitterPosition( int pos,
443 int splitterColumn = 0,
444 bool allPages = false,
445 bool fromAutoCenter = false );
446
447 bool EnableCategories( bool enable );
448
449 /** Make sure virtual height is up-to-date.
450 */
451 void EnsureVirtualHeight()
452 {
453 if ( m_vhCalcPending )
454 {
455 RecalculateVirtualHeight();
456 m_vhCalcPending = 0;
457 }
458 }
459
460 /** Enables or disables given property and its subproperties. */
461 bool DoEnableProperty( wxPGProperty* p, bool enable );
462
463 /** Returns (precalculated) height of contained visible properties.
464 */
465 unsigned int GetVirtualHeight() const
466 {
467 wxASSERT( !m_vhCalcPending );
468 return m_virtualHeight;
469 }
470
471 /** Returns (precalculated) height of contained visible properties.
472 */
473 unsigned int GetVirtualHeight()
474 {
475 EnsureVirtualHeight();
476 return m_virtualHeight;
477 }
478
479 /** Returns actual height of contained visible properties.
480 @remarks
481 Mostly used for internal diagnostic purposes.
482 */
483 inline unsigned int GetActualVirtualHeight() const;
484
485 unsigned int GetColumnCount() const
486 {
487 return (unsigned int) m_colWidths.size();
488 }
489
490 wxPGProperty* GetSelection() const
491 {
492 return m_selected;
493 }
494
495 int GetColumnMinWidth( int column ) const;
496
497 int GetColumnWidth( unsigned int column ) const
498 {
499 return m_colWidths[column];
500 }
501
502 wxPropertyGrid* GetGrid() const { return m_pPropGrid; }
503
504 /** Returns last item which could be iterated using given flags.
505 @param flags
506 @link iteratorflags List of iterator flags@endlink
507 */
508 wxPGProperty* GetLastItem( int flags = wxPG_ITERATE_DEFAULT );
509
510 const wxPGProperty* GetLastItem( int flags = wxPG_ITERATE_DEFAULT ) const
511 {
512 return ((wxPropertyGridPageState*)this)->GetLastItem(flags);
513 }
514
515 wxPropertyCategory* GetPropertyCategory( const wxPGProperty* p ) const;
516
517 wxPGProperty* GetPropertyByLabel( const wxString& name,
518 wxPGProperty* parent = NULL ) const;
519
520 wxVariant DoGetPropertyValues( const wxString& listname,
521 wxPGProperty* baseparent,
522 long flags ) const;
523
524 wxPGProperty* DoGetRoot() const { return m_properties; }
525
526 void DoSetPropertyName( wxPGProperty* p, const wxString& newName );
527
528 // Returns combined width of margin and all the columns
529 int GetVirtualWidth() const
530 {
531 return m_width;
532 }
533
534 /**
535 Returns minimal width for given column so that all images and texts
536 will fit entirely.
537
538 Used by SetSplitterLeft() and DoFitColumns().
539 */
540 int GetColumnFitWidth(wxClientDC& dc,
541 wxPGProperty* pwc,
542 unsigned int col,
543 bool subProps) const;
544
545 /**
546 Returns information about arbitrary position in the grid.
547
548 @param pt
549 Logical coordinates in the virtual grid space. Use
550 wxScrolledWindow::CalcUnscrolledPosition() if you need to
551 translate a scrolled position into a logical one.
552 */
553 wxPropertyGridHitTestResult HitTest( const wxPoint& pt ) const;
554
555 /** Returns true if page is visibly displayed.
556 */
557 inline bool IsDisplayed() const;
558
559 bool IsInNonCatMode() const { return (bool)(m_properties == m_abcArray); }
560
561 void DoLimitPropertyEditing( wxPGProperty* p, bool limit = true )
562 {
563 p->SetFlagRecursively(wxPG_PROP_NOEDITOR, limit);
564 }
565
566 bool DoSelectProperty( wxPGProperty* p, unsigned int flags = 0 );
567
568 /** widthChange is non-client.
569 */
570 void OnClientWidthChange( int newWidth,
571 int widthChange,
572 bool fromOnResize = false );
573
574 /** Recalculates m_virtualHeight.
575 */
576 void RecalculateVirtualHeight()
577 {
578 m_virtualHeight = GetActualVirtualHeight();
579 }
580
581 void SetColumnCount( int colCount );
582
583 void PropagateColSizeDec( int column, int decrease, int dir );
584
585 bool DoHideProperty( wxPGProperty* p, bool hide, int flags = wxPG_RECURSE );
586
587 bool DoSetPropertyValueString( wxPGProperty* p, const wxString& value );
588
589 bool DoSetPropertyValue( wxPGProperty* p, wxVariant& value );
590
591 bool DoSetPropertyValueWxObjectPtr( wxPGProperty* p, wxObject* value );
592 void DoSetPropertyValues( const wxVariantList& list,
593 wxPGProperty* default_category );
594
595 void SetSplitterLeft( bool subProps = false );
596
597 /** Set virtual width for this particular page. */
598 void SetVirtualWidth( int width );
599
600 void DoSortChildren( wxPGProperty* p, int flags = 0 );
601 void DoSort( int flags = 0 );
602
603 bool PrepareAfterItemsAdded();
604
605 void SetSelection( wxPGProperty* p ) { m_selected = p; }
606
607 /** Called after virtual height needs to be recalculated.
608 */
609 void VirtualHeightChanged()
610 {
611 m_vhCalcPending = 1;
612 }
613
614 /** Base append. */
615 wxPGProperty* DoAppend( wxPGProperty* property );
616
617 /** Returns property by its name. */
618 wxPGProperty* BaseGetPropertyByName( const wxString& name ) const;
619
620 void DoClearSelection()
621 {
622 m_selected = NULL;
623 }
624
625 /** Called in, for example, wxPropertyGrid::Clear. */
626 void DoClear();
627
628 bool DoCollapse( wxPGProperty* p );
629
630 bool DoExpand( wxPGProperty* p );
631
632 void CalculateFontAndBitmapStuff( int vspacing );
633
634 protected:
635
636 int DoGetSplitterPosition( int splitterIndex = 0 ) const;
637
638 /** Returns column at x coordinate (in GetGrid()->GetPanel()).
639 @param pSplitterHit
640 Give pointer to int that receives index to splitter that is at x.
641 @param pSplitterHitOffset
642 Distance from said splitter.
643 */
644 int HitTestH( int x, int* pSplitterHit, int* pSplitterHitOffset ) const;
645
646 bool PrepareToAddItem( wxPGProperty* property,
647 wxPGProperty* scheduledParent );
648
649 /** If visible, then this is pointer to wxPropertyGrid.
650 This shall *never* be NULL to indicate that this state is not visible.
651 */
652 wxPropertyGrid* m_pPropGrid;
653
654 /** Pointer to currently used array. */
655 wxPGProperty* m_properties;
656
657 /** Array for categoric mode. */
658 wxPGRootProperty m_regularArray;
659
660 /** Array for root of non-categoric mode. */
661 wxPGRootProperty* m_abcArray;
662
663 /** Dictionary for name-based access. */
664 wxPGHashMapS2P m_dictName;
665
666 /** List of column widths (first column does not include margin). */
667 wxArrayInt m_colWidths;
668
669 double m_fSplitterX;
670
671 /** Most recently added category. */
672 wxPropertyCategory* m_currentCategory;
673
674 /** Pointer to selected property. */
675 wxPGProperty* m_selected;
676
677 /** Virtual width. */
678 int m_width;
679
680 /** Indicates total virtual height of visible properties. */
681 unsigned int m_virtualHeight;
682
683 /** 1 if m_lastCaption is also the bottommost caption. */
684 unsigned char m_lastCaptionBottomnest;
685
686 /** 1 items appended/inserted, so stuff needs to be done before drawing;
687 If m_virtualHeight == 0, then calcylatey's must be done.
688 Otherwise just sort.
689 */
690 unsigned char m_itemsAdded;
691
692 /** 1 if any value is modified. */
693 unsigned char m_anyModified;
694
695 unsigned char m_vhCalcPending;
696
697 private:
698 /** Only inits arrays, doesn't migrate things or such. */
699 void InitNonCatMode();
700 };
701
702 #endif // #ifndef SWIG
703
704 // -----------------------------------------------------------------------
705
706 #endif // wxUSE_PROPGRID
707
708 #endif // _WX_PROPGRID_PROPGRIDPAGESTATE_H_
709