make distinction between classes which send events (use @beginEventEmissionTable...
[wxWidgets.git] / interface / wx / listctrl.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: wx/listctrl.h
3 // Purpose: interface of wxListCtrl
4 // Author: wxWidgets team
5 // RCS-ID: $Id$
6 // Licence: wxWindows license
7 /////////////////////////////////////////////////////////////////////////////
8
9 /**
10 @class wxListCtrl
11
12 A list control presents lists in a number of formats: list view, report view,
13 icon view and small icon view. In any case, elements are numbered from zero.
14 For all these modes, the items are stored in the control and must be added to
15 it using wxListCtrl::InsertItem method.
16
17 A special case of report view quite different from the other modes of the list
18 control is a virtual control in which the items data (including text, images
19 and attributes) is managed by the main program and is requested by the control
20 itself only when needed which allows to have controls with millions of items
21 without consuming much memory. To use virtual list control you must use
22 wxListCtrl::SetItemCount first and overload at least wxListCtrl::OnGetItemText
23 (and optionally wxListCtrl::OnGetItemImage or wxListCtrl::OnGetItemColumnImage and
24 wxListCtrl::OnGetItemAttr) to return the information about the items when the
25 control requests it.
26
27 Virtual list control can be used as a normal one except that no operations
28 which can take time proportional to the number of items in the control happen
29 -- this is required to allow having a practically infinite number of items.
30 For example, in a multiple selection virtual list control, the selections won't
31 be sent when many items are selected at once because this could mean iterating
32 over all the items.
33
34 Using many of wxListCtrl features is shown in the
35 @ref page_samples_listctrl "corresponding sample".
36
37 To intercept events from a list control, use the event table macros described
38 in wxListEvent.
39
40 <b>wxMac Note</b>: Starting with wxWidgets 2.8, wxListCtrl uses a native
41 implementation for report mode, and uses a generic implementation for other
42 modes. You can use the generic implementation for report mode as well by setting
43 the @c mac.listctrl.always_use_generic system option (see wxSystemOptions) to 1.
44
45
46 @beginStyleTable
47 @style{wxLC_LIST}
48 Multicolumn list view, with optional small icons. Columns are
49 computed automatically, i.e. you don't set columns as in
50 @c wxLC_REPORT. In other words, the list wraps, unlike a wxListBox.
51 @style{wxLC_REPORT}
52 Single or multicolumn report view, with optional header.
53 @style{wxLC_VIRTUAL}
54 The application provides items text on demand. May only be used
55 with @c wxLC_REPORT.
56 @style{wxLC_ICON}
57 Large icon view, with optional labels.
58 @style{wxLC_SMALL_ICON}
59 Small icon view, with optional labels.
60 @style{wxLC_ALIGN_TOP}
61 Icons align to the top. Win32 default, Win32 only.
62 @style{wxLC_ALIGN_LEFT}
63 Icons align to the left.
64 @style{wxLC_AUTOARRANGE}
65 Icons arrange themselves. Win32 only.
66 @style{wxLC_EDIT_LABELS}
67 Labels are editable: the application will be notified when editing
68 starts.
69 @style{wxLC_NO_HEADER}
70 No header in report mode.
71 @style{wxLC_SINGLE_SEL}
72 Single selection (default is multiple).
73 @style{wxLC_SORT_ASCENDING}
74 Sort in ascending order. (You must still supply a comparison callback
75 in wxListCtrl::SortItems.)
76 @style{wxLC_SORT_DESCENDING}
77 Sort in descending order. (You must still supply a comparison callback
78 in wxListCtrl::SortItems.)
79 @style{wxLC_HRULES}
80 Draws light horizontal rules between rows in report mode.
81 @style{wxLC_VRULES}
82 Draws light vertical rules between columns in report mode.
83 @endStyleTable
84
85
86 @beginEventEmissionTable{wxListEvent}
87 @event{EVT_LIST_BEGIN_DRAG(id, func)}
88 Begin dragging with the left mouse button.
89 @event{EVT_LIST_BEGIN_RDRAG(id, func)}
90 Begin dragging with the right mouse button..
91 @event{EVT_BEGIN_LABEL_EDIT(id, func)}
92 Begin editing a label. This can be prevented by calling Veto().
93 @event{EVT_LIST_END_LABEL_EDIT(id, func)}
94 Finish editing a label. This can be prevented by calling Veto().
95 @event{EVT_LIST_DELETE_ITEM(id, func)}
96 An item was deleted.
97 @event{EVT_LIST_DELETE_ALL_ITEMS(id, func)}
98 All items were deleted.
99 @event{EVT_LIST_ITEM_SELECTED(id, func)}
100 The item has been selected.
101 @event{EVT_LIST_ITEM_DESELECTED(id, func)}
102 The item has been deselected.
103 @event{EVT_LIST_ITEM_ACTIVATED(id, func)}
104 The item has been activated (ENTER or double click).
105 @event{EVT_LIST_ITEM_FOCUSED(id, func)}
106 The currently focused item has changed.
107 @event{EVT_LIST_ITEM_MIDDLE_CLICK(id, func)}
108 The middle mouse button has been clicked on an item.
109 @event{EVT_LIST_ITEM_RIGHT_CLICK(id, func)}
110 The right mouse button has been clicked on an item.
111 @event{EVT_LIST_KEY_DOWN(id, func)}
112 A key has been pressed.
113 @event{EVT_LIST_INSERT_ITEM(id, func)}
114 An item has been inserted.
115 @event{EVT_LIST_COL_CLICK(id, func)}
116 A column (m_col) has been left-clicked.
117 @event{EVT_LIST_COL_RIGHT_CLICK(id, func)}
118 A column (m_col) has been right-clicked.
119 @event{EVT_LIST_COL_BEGIN_DRAG(id, func)}
120 The user started resizing a column - can be vetoed.
121 @event{EVT_LIST_COL_DRAGGING(id, func)}
122 The divider between columns is being dragged.
123 @event{EVT_LIST_COL_END_DRAG(id, func)}
124 A column has been resized by the user.
125 @event{EVT_LIST_CACHE_HINT(id, func)}
126 Prepare cache for a virtual list control.
127 @endEventTable
128
129
130 @library{wxcore}
131 @category{ctrl}
132 @appearance{listctrl.png}
133
134 @see @ref overview_listctrl, wxListView, wxListBox, wxTreeCtrl, wxImageList,
135 wxListEvent, wxListItem, wxEditableListBox
136 */
137 class wxListCtrl : public wxControl
138 {
139 public:
140 /**
141 Default constructor.
142 */
143 wxListCtrl();
144
145 /**
146 Constructor, creating and showing a list control.
147
148 @param parent
149 Parent window. Must not be @NULL.
150 @param id
151 Window identifier. The value wxID_ANY indicates a default value.
152 @param pos
153 Window position.
154 @param size
155 Window size.
156 If wxDefaultSize is specified then the window is sized appropriately.
157 @param style
158 Window style. See wxListCtrl.
159 @param validator
160 Window validator.
161 @param name
162 Window name.
163
164 @see Create(), wxValidator
165 */
166 wxListCtrl(wxWindow* parent, wxWindowID id,
167 const wxPoint& pos = wxDefaultPosition,
168 const wxSize& size = wxDefaultSize,
169 long style = wxLC_ICON,
170 const wxValidator& validator = wxDefaultValidator,
171 const wxString& name = wxListCtrlNameStr);
172
173 /**
174 Destructor, destroying the list control.
175 */
176 virtual ~wxListCtrl();
177
178 /**
179 Arranges the items in icon or small icon view.
180 This only has effect on Win32. @a flag is one of:
181 - wxLIST_ALIGN_DEFAULT: Default alignment.
182 - wxLIST_ALIGN_LEFT: Align to the left side of the control.
183 - wxLIST_ALIGN_TOP: Align to the top side of the control.
184 - wxLIST_ALIGN_SNAP_TO_GRID: Snap to grid.
185 */
186 bool Arrange(int flag = wxLIST_ALIGN_DEFAULT);
187
188 /**
189 Sets the image list associated with the control and takes ownership of it
190 (i.e. the control will, unlike when using SetImageList(), delete the list
191 when destroyed). @a which is one of @c wxIMAGE_LIST_NORMAL, @c wxIMAGE_LIST_SMALL,
192 @c wxIMAGE_LIST_STATE (the last is unimplemented).
193
194 @see SetImageList()
195 */
196 void AssignImageList(wxImageList* imageList, int which);
197
198 /**
199 Deletes all items and all columns.
200 */
201 void ClearAll();
202
203 /**
204 Creates the list control. See wxListCtrl() for further details.
205 */
206 bool Create(wxWindow* parent, wxWindowID id,
207 const wxPoint& pos = wxDefaultPosition,
208 const wxSize& size = wxDefaultSize,
209 long style = wxLC_ICON,
210 const wxValidator& validator = wxDefaultValidator,
211 const wxString& name = wxListCtrlNameStr);
212
213 /**
214 Deletes all items in the list control.
215
216 @note This function does @e not send the @c wxEVT_COMMAND_LIST_DELETE_ITEM
217 event because deleting many items from the control would be too slow
218 then (unlike wxListCtrl::DeleteItem).
219 */
220 bool DeleteAllItems();
221
222 /**
223 Deletes a column.
224 */
225 bool DeleteColumn(int col);
226
227 /**
228 Deletes the specified item.
229 This function sends the @c wxEVT_COMMAND_LIST_DELETE_ITEM event for the
230 item being deleted.
231
232 @see DeleteAllItems()
233 */
234 bool DeleteItem(long item);
235
236 /**
237 Starts editing the label of the given item.
238
239 This function generates a @c EVT_LIST_BEGIN_LABEL_EDIT event which can be
240 vetoed so that no text control will appear for in-place editing.
241
242 If the user changed the label (i.e. s/he does not press ESC or leave
243 the text control without changes, a @c EVT_LIST_END_LABEL_EDIT event
244 will be sent which can be vetoed as well.
245 */
246 wxTextCtrl* EditLabel(long item,
247 wxClassInfo* textControlClass = CLASSINFO(wxTextCtrl));
248
249 /**
250 Ensures this item is visible.
251 */
252 bool EnsureVisible(long item);
253
254 /**
255 Find an item whose label matches this string, starting from start or the
256 beginning if start is @c -1. The string comparison is case insensitive.
257
258 If @a partial is @true then this method will look for items which begin with @a str.
259 */
260 long FindItem(long start, const wxString& str,
261 bool partial = false);
262
263 /**
264 Find an item whose data matches this data, starting from start or the
265 beginning if 'start' is @c -1.
266 */
267 long FindItem(long start, wxUIntPtr data);
268
269 /**
270 Find an item nearest this position in the specified direction,
271 starting from @a start or the beginning if @a start is -1.
272 */
273 long FindItem(long start, const wxPoint& pt, int direction);
274
275 /**
276 Gets information about this column.
277 See SetItem() for more information.
278 */
279 bool GetColumn(int col, wxListItem& item) const;
280
281 /**
282 Returns the number of columns.
283 */
284 int GetColumnCount() const;
285
286 /**
287 Gets the column index from its position in visual order.
288
289 After calling SetColumnsOrder(), the index returned by this function
290 corresponds to the value of the element number @a pos in the array
291 returned by GetColumnsOrder().
292
293 Please see SetColumnsOrder() documentation for an example and
294 additional remarks about the columns ordering.
295
296 @see GetColumnOrder()
297 */
298 int GetColumnIndexFromOrder(int pos) const;
299
300 /**
301 Gets the column visual order position.
302
303 This function returns the index of the column which appears at the
304 given visual position, e.g. calling it with @a col equal to 0 returns
305 the index of the first shown column.
306
307 Please see SetColumnsOrder() documentation for an example and
308 additional remarks about the columns ordering.
309
310 @see GetColumnsOrder(), GetColumnIndexFromOrder()
311 */
312 int GetColumnOrder(int col) const;
313
314 /**
315 Gets the column width (report view only).
316 */
317 int GetColumnWidth(int col) const;
318
319 /**
320 Returns the array containing the orders of all columns.
321
322 On error, an empty array is returned.
323
324 Please see SetColumnsOrder() documentation for an example and
325 additional remarks about the columns ordering.
326
327 @see GetColumnOrder(), GetColumnIndexFromOrder()
328 */
329 wxArrayInt GetColumnsOrder() const;
330
331 /**
332 Gets the number of items that can fit vertically in the visible area of
333 the list control (list or report view) or the total number of items in
334 the list control (icon or small icon view).
335 */
336 int GetCountPerPage() const;
337
338 /**
339 Returns the edit control being currently used to edit a label.
340 Returns @NULL if no label is being edited.
341
342 @note It is currently only implemented for wxMSW and the generic version,
343 not for the native Mac OS X version.
344 */
345 wxTextCtrl* GetEditControl() const;
346
347 /**
348 Returns the specified image list. @a which may be one of:
349 - wxIMAGE_LIST_NORMAL: The normal (large icon) image list.
350 - wxIMAGE_LIST_SMALL: The small icon image list.
351 - wxIMAGE_LIST_STATE: The user-defined state image list (unimplemented).
352 */
353 wxImageList* GetImageList(int which) const;
354
355 /**
356 Gets information about the item. See SetItem() for more information.
357
358 You must call @e info.SetId() to set the ID of item you're interested in
359 before calling this method, and @e info.SetMask() with the flags indicating
360 what fields you need to retrieve from @a info.
361 */
362 bool GetItem(wxListItem& info) const;
363
364 /**
365 Returns the colour for this item.
366 If the item has no specific colour, returns an invalid colour
367 (and not the default background control of the control itself).
368
369 @see GetItemTextColour()
370 */
371 wxColour GetItemBackgroundColour(long item) const;
372
373 /**
374 Returns the number of items in the list control.
375 */
376 int GetItemCount() const;
377
378 /**
379 Gets the application-defined data associated with this item.
380 */
381 wxUIntPtr GetItemData(long item) const;
382
383 /**
384 Returns the item's font.
385 */
386 wxFont GetItemFont(long item) const;
387
388 /**
389 Returns the position of the item, in icon or small icon view.
390 */
391 bool GetItemPosition(long item, wxPoint& pos) const;
392
393 /**
394 Returns the rectangle representing the item's size and position, in physical
395 coordinates.
396
397 @a code is one of wxLIST_RECT_BOUNDS, wxLIST_RECT_ICON, wxLIST_RECT_LABEL.
398 */
399 bool GetItemRect(long item, wxRect& rect,
400 int code = wxLIST_RECT_BOUNDS) const;
401
402 /**
403 Retrieves the spacing between icons in pixels: horizontal spacing is
404 returned as @c x component of the wxSize object and the vertical spacing
405 as its @c y component.
406 */
407 wxSize GetItemSpacing() const;
408
409 /**
410 Gets the item state. For a list of state flags, see SetItem().
411 The @a stateMask indicates which state flags are of interest.
412 */
413 int GetItemState(long item, long stateMask) const;
414
415 /**
416 Gets the item text for this item.
417 */
418 wxString GetItemText(long item) const;
419
420 /**
421 Returns the colour for this item.
422
423 If the item has no specific colour, returns an invalid colour (and not the
424 default foreground control of the control itself as this wouldn't allow
425 distinguishing between items having the same colour as the current control
426 foreground and items with default colour which, hence, have always the
427 same colour as the control).
428 */
429 wxColour GetItemTextColour(long item) const;
430
431 /**
432 Searches for an item with the given geometry or state, starting from
433 @a item but excluding the @a item itself.
434
435 If @a item is -1, the first item that matches the specified flags will be returned.
436 Returns the first item with given state following @a item or -1 if no such item found.
437 This function may be used to find all selected items in the control like this:
438
439 @code
440 long item = -1;
441 for ( ;; )
442 {
443 item = listctrl->GetNextItem(item,
444 wxLIST_NEXT_ALL,
445 wxLIST_STATE_SELECTED);
446 if ( item == -1 )
447 break;
448
449 // this item is selected - do whatever is needed with it
450 wxLogMessage("Item %ld is selected.", item);
451 }
452 @endcode
453
454 @a geometry can be one of:
455 - wxLIST_NEXT_ABOVE: Searches for an item above the specified item.
456 - wxLIST_NEXT_ALL: Searches for subsequent item by index.
457 - wxLIST_NEXT_BELOW: Searches for an item below the specified item.
458 - wxLIST_NEXT_LEFT: Searches for an item to the left of the specified item.
459 - wxLIST_NEXT_RIGHT: Searches for an item to the right of the specified item.
460
461 @note this parameter is only supported by wxMSW currently and ignored on
462 other platforms.
463
464 @a state can be a bitlist of the following:
465 - wxLIST_STATE_DONTCARE: Don't care what the state is.
466 - wxLIST_STATE_DROPHILITED: The item indicates it is a drop target.
467 - wxLIST_STATE_FOCUSED: The item has the focus.
468 - wxLIST_STATE_SELECTED: The item is selected.
469 - wxLIST_STATE_CUT: The item is selected as part of a cut and paste operation.
470 */
471 long GetNextItem(long item, int geometry = wxLIST_NEXT_ALL,
472 int state = wxLIST_STATE_DONTCARE) const;
473
474 /**
475 Returns the number of selected items in the list control.
476 */
477 int GetSelectedItemCount() const;
478
479 /**
480 Returns the rectangle representing the size and position, in physical
481 coordinates, of the given subitem, i.e. the part of the row @a item in the
482 column @a subItem.
483
484 This method is only meaningfull when the wxListCtrl is in the report mode.
485 If @a subItem parameter is equal to the special value
486 @c wxLIST_GETSUBITEMRECT_WHOLEITEM the return value is the same as
487 for GetItemRect().
488
489 @a code can be one of @c wxLIST_RECT_BOUNDS, @c wxLIST_RECT_ICON or
490 @c wxLIST_RECT_LABEL.
491
492 @since 2.7.0
493 */
494 bool GetSubItemRect(long item, long subItem, wxRect& rect,
495 int code = wxLIST_RECT_BOUNDS) const;
496
497 /**
498 Gets the text colour of the list control.
499 */
500 wxColour GetTextColour() const;
501
502 /**
503 Gets the index of the topmost visible item when in list or report view.
504 */
505 long GetTopItem() const;
506
507 /**
508 Returns the rectangle taken by all items in the control. In other words, if the
509 controls client size were equal to the size of this rectangle, no scrollbars
510 would be needed and no free space would be left.
511
512 Note that this function only works in the icon and small icon views, not in
513 list or report views (this is a limitation of the native Win32 control).
514 */
515 wxRect GetViewRect() const;
516
517 /**
518 Determines which item (if any) is at the specified point, giving details
519 in @a flags. Returns index of the item or @c wxNOT_FOUND if no item is at
520 the specified point.
521
522 @a flags will be a combination of the following flags:
523 - wxLIST_HITTEST_ABOVE: Above the client area.
524 - wxLIST_HITTEST_BELOW: Below the client area.
525 - wxLIST_HITTEST_NOWHERE: In the client area but below the last item.
526 - wxLIST_HITTEST_ONITEMICON: On the bitmap associated with an item.
527 - wxLIST_HITTEST_ONITEMLABEL: On the label (string) associated with an item.
528 - wxLIST_HITTEST_ONITEMRIGHT: In the area to the right of an item.
529 - wxLIST_HITTEST_ONITEMSTATEICON: On the state icon for a tree view item
530 that is in a user-defined state.
531 - wxLIST_HITTEST_TOLEFT: To the right of the client area.
532 - wxLIST_HITTEST_TORIGHT: To the left of the client area.
533 - wxLIST_HITTEST_ONITEM: Combination of @c wxLIST_HITTEST_ONITEMICON,
534 @c wxLIST_HITTEST_ONITEMLABEL, @c wxLIST_HITTEST_ONITEMSTATEICON.
535
536 If @a ptrSubItem is not @NULL and the wxListCtrl is in the report
537 mode the subitem (or column) number will also be provided.
538 This feature is only available in version 2.7.0 or higher and is currently only
539 implemented under wxMSW and requires at least comctl32.dll of verion 4.70 on
540 the host system or the value stored in @a ptrSubItem will be always -1.
541 To compile this feature into wxWidgets library you need to have access to
542 commctrl.h of version 4.70 that is provided by Microsoft.
543 */
544 long HitTest(const wxPoint& point, int& flags, long* ptrSubItem = NULL) const;
545
546 /**
547 For report view mode (only), inserts a column. For more details, see SetItem().
548 */
549 long InsertColumn(long col, wxListItem& info);
550
551 /**
552 For report view mode (only), inserts a column. For more details, see SetItem().
553 */
554 long InsertColumn(long col, const wxString& heading,
555 int format = wxLIST_FORMAT_LEFT,
556 int width = -1);
557
558 /**
559 Inserts an item, returning the index of the new item if successful, -1 otherwise.
560
561 @param info
562 wxListItem object
563 */
564 long InsertItem(wxListItem& info);
565
566 /**
567 Insert an string item.
568
569 @param index
570 Index of the new item, supplied by the application
571 @param label
572 String label
573 */
574 long InsertItem(long index, const wxString& label);
575
576 /**
577 Insert an image item.
578
579 @param index
580 Index of the new item, supplied by the application
581 @param imageIndex
582 Index into the image list associated with this control and view style
583 */
584 long InsertItem(long index, int imageIndex);
585
586 /**
587 Insert an image/string item.
588
589 @param index
590 Index of the new item, supplied by the application
591 @param label
592 String label
593 @param imageIndex
594 Index into the image list associated with this control and view style
595 */
596 long InsertItem(long index, const wxString& label,
597 int imageIndex);
598
599 /**
600 Redraws the given @e item.
601
602 This is only useful for the virtual list controls as without calling this
603 function the displayed value of the item doesn't change even when the
604 underlying data does change.
605
606 @see RefreshItems()
607 */
608 void RefreshItem(long item);
609
610 /**
611 Redraws the items between @a itemFrom and @e itemTo.
612 The starting item must be less than or equal to the ending one.
613
614 Just as RefreshItem() this is only useful for virtual list controls.
615 */
616 void RefreshItems(long itemFrom, long itemTo);
617
618 /**
619 Scrolls the list control. If in icon, small icon or report view mode,
620 @a dx specifies the number of pixels to scroll. If in list view mode,
621 @a dx specifies the number of columns to scroll. @a dy always specifies
622 the number of pixels to scroll vertically.
623
624 @note This method is currently only implemented in the Windows version.
625 */
626 bool ScrollList(int dx, int dy);
627
628 /**
629 Sets the background colour.
630
631 Note that the wxWindow::GetBackgroundColour() function of wxWindow base
632 class can be used to retrieve the current background colour.
633 */
634 virtual bool SetBackgroundColour(const wxColour& col);
635
636 /**
637 Sets information about this column.
638 See SetItem() for more information.
639 */
640 bool SetColumn(int col, wxListItem& item);
641
642 /**
643 Sets the column width.
644
645 @a width can be a width in pixels or @c wxLIST_AUTOSIZE (-1) or
646 @c wxLIST_AUTOSIZE_USEHEADER (-2).
647
648 @c wxLIST_AUTOSIZE will resize the column to the length of its longest item.
649
650 @c wxLIST_AUTOSIZE_USEHEADER will resize the column to the length of the
651 header (Win32) or 80 pixels (other platforms).
652
653 In small or normal icon view, @a col must be -1, and the column width is set
654 for all columns.
655 */
656 bool SetColumnWidth(int col, int width);
657
658 /**
659 Changes the order in which the columns are shown.
660
661 By default, the columns of a list control appear on the screen in order
662 of their indices, i.e. the column 0 appears first, the column 1 next
663 and so on. However by using this function it is possible to arbitrarily
664 reorder the columns visual order and the user can also rearrange the
665 columns interactively by dragging them. In this case, the index of the
666 column is not the same as its order and the functions GetColumnOrder()
667 and GetColumnIndexFromOrder() should be used to translate between them.
668 Notice that all the other functions still work with the column indices,
669 i.e. the visual positioning of the columns on screen doesn't affect the
670 code setting or getting their values for example.
671
672 The @a orders array must have the same number elements as the number of
673 columns and contain each position exactly once. Its n-th element
674 contains the index of the column to be shown in n-th position, so for a
675 control with three columns passing an array with elements 2, 0 and 1
676 results in the third column being displayed first, the first one next
677 and the second one last.
678
679 Example of using it:
680 @code
681 wxListCtrl *list = new wxListCtrl(...);
682 for ( int i = 0; i < 3; i++ )
683 list->InsertColumn(i, wxString::Format("Column %d", i));
684
685 wxArrayInt order(3);
686 order[0] = 2;
687 order[1] = 0;
688 order[2] = 1;
689 list->SetColumnsOrder(order);
690
691 // now list->GetColumnsOrder() will return order and
692 // list->GetColumnIndexFromOrder(n) will return order[n] and
693 // list->GetColumnOrder() will return 1, 2 and 0 for the column 0,
694 // 1 and 2 respectively
695 @endcode
696
697 Please notice that this function makes sense for report view only and
698 currently is only implemented in wxMSW port. To avoid explicit tests
699 for @c __WXMSW__ in your code, please use @c wxHAS_LISTCTRL_COLUMN_ORDER
700 as this will allow it to start working under the other platforms when
701 support for the column reordering is added there.
702
703 @see GetColumnsOrder()
704 */
705 bool SetColumnsOrder(const wxArrayInt& orders) const;
706
707 /**
708 Sets the image list associated with the control.
709
710 @a which is one of @c wxIMAGE_LIST_NORMAL, @c wxIMAGE_LIST_SMALL,
711 @c wxIMAGE_LIST_STATE (the last is unimplemented).
712
713 This method does not take ownership of the image list, you have to
714 delete it yourself.
715
716 @see AssignImageList()
717 */
718 void SetImageList(wxImageList* imageList, int which);
719
720 /**
721 Sets the data of an item.
722
723 Using the wxListItem's mask and state mask, you can change only selected
724 attributes of a wxListCtrl item.
725 */
726 bool SetItem(wxListItem& info);
727
728 /**
729 Sets an item string field at a particular column.
730 */
731 long SetItem(long index, int column, const wxString& label, int imageId = -1);
732
733 /**
734 Sets the background colour for this item.
735 This function only works in report view mode.
736 The colour can be retrieved using GetItemBackgroundColour().
737 */
738 void SetItemBackgroundColour(long item, const wxColour& col);
739
740 /**
741 Sets the image associated with the item.
742 In report view, you can specify the column.
743 The image is an index into the image list associated with the list control.
744 */
745 bool SetItemColumnImage(long item, long column, int image);
746
747 /**
748 This method can only be used with virtual list controls.
749
750 It is used to indicate to the control the number of items it contains.
751 After calling it, the main program should be ready to handle calls to
752 various item callbacks (such as wxListCtrl::OnGetItemText) for all
753 items in the range from 0 to @a count.
754
755 Notice that the control is not necessarily redrawn after this call as
756 it may be undesirable if an item which is not visible on the screen
757 anyhow was added to or removed from a control displaying many items, if
758 you do need to refresh the display you can just call Refresh() manually.
759 */
760 void SetItemCount(long count);
761
762 /**
763 Associates application-defined data with this item.
764
765 Notice that this function cannot be used to associate pointers with the control
766 items, use SetItemPtrData() instead.
767 */
768 bool SetItemData(long item, long data);
769
770 /**
771 Sets the item's font.
772 */
773 void SetItemFont(long item, const wxFont& font);
774
775 /**
776 Sets the unselected and selected images associated with the item.
777 The images are indices into the image list associated with the list control.
778 */
779 bool SetItemImage(long item, int image, int selImage = -1);
780
781 /**
782 Sets the unselected and selected images associated with the item.
783 The images are indices into the image list associated with the list control.
784
785 @deprecated
786 This form is deprecated: @a selImage is not used; use the other
787 SetItemImage() overload.
788 */
789 bool SetItemImage(long item, int image, int selImage = -1);
790
791 /**
792 Sets the position of the item, in icon or small icon view. Windows only.
793 */
794 bool SetItemPosition(long item, const wxPoint& pos);
795
796 /**
797 Associates application-defined data with this item.
798
799 The @a data parameter may be either an integer or a pointer cast to the
800 @c wxUIntPtr type which is guaranteed to be large enough to be able to
801 contain all integer types and pointers.
802
803 @since 2.8.4
804 */
805 bool SetItemPtrData(long item, wxUIntPtr data);
806
807 /**
808 Sets the item state. For a list of state flags, see SetItem().
809 The @b stateMask indicates which state flags are valid.
810 */
811 bool SetItemState(long item, long state, long stateMask);
812
813 /**
814 Sets the item text for this item.
815 */
816 void SetItemText(long item, const wxString& text);
817
818 /**
819 Sets the colour for this item.
820 This function only works in report view.
821 The colour can be retrieved using GetItemTextColour().
822 */
823 void SetItemTextColour(long item, const wxColour& col);
824
825 /**
826 Adds or removes a single window style.
827 */
828 void SetSingleStyle(long style, bool add = true);
829
830 /**
831 Sets the text colour of the list control.
832 */
833 void SetTextColour(const wxColour& col);
834
835 /**
836 Sets the whole window style, deleting all items.
837 */
838 void SetWindowStyleFlag(long style);
839
840 /**
841 Call this function to sort the items in the list control. Sorting is done
842 using the specified @a fnSortCallBack function. This function must have the
843 following prototype:
844 @code
845 int wxCALLBACK wxListCompareFunction(long item1, long item2, long sortData)
846 @endcode
847
848 It is called each time when the two items must be compared and should return 0
849 if the items are equal, negative value if the first item is less than the
850 second one and positive value if the first one is greater than the second one
851 (the same convention as used by @c qsort(3)).
852
853 The parameter @e item1 is the client data associated with the first item (NOT the index).
854 The parameter @e item2 is the client data associated with the second item (NOT the index).
855 The parameter @e data is the value passed to SortItems() itself.
856
857 Notice that the control may only be sorted on client data associated with
858 the items, so you must use SetItemData if you want to be able to sort the
859 items in the control.
860
861 Please see the @ref page_samples_listctrl for an example of using this function.
862 */
863 bool SortItems(wxListCtrlCompare fnSortCallBack, long data);
864
865 protected:
866
867 /**
868 This function may be overloaded in the derived class for a control with
869 @c wxLC_VIRTUAL style. It should return the attribute for the specified
870 @c item or @NULL to use the default appearance parameters.
871
872 wxListCtrl will not delete the pointer or keep a reference of it.
873 You can return the same wxListItemAttr pointer for every OnGetItemAttr() call.
874
875 The base class version always returns @NULL.
876
877 @see OnGetItemImage(), OnGetItemColumnImage(), OnGetItemText(),
878 OnGetItemColumnAttr()
879 */
880 virtual wxListItemAttr* OnGetItemAttr(long item) const;
881
882 /**
883 This function may be overridden in the derived class for a control with
884 @c wxLC_VIRTUAL style.
885
886 It should return the attribute for the for the specified @a item and @a
887 column or @NULL to use the default appearance parameters.
888
889 The base class version returns @c OnGetItemAttr(item).
890
891 @note Currently this function is only called under wxMSW, the other
892 ports only support OnGetItemAttr()
893
894 @see OnGetItemAttr(), OnGetItemText(),
895 OnGetItemImage(), OnGetItemColumnImage(),
896 */
897 virtual wxListItemAttr* OnGetItemColumnAttr(long item, long column) const;
898
899 /**
900 Overload this function in the derived class for a control with
901 @c wxLC_VIRTUAL and @c wxLC_REPORT styles in order to specify the image
902 index for the given line and column.
903
904 The base class version always calls OnGetItemImage() for the first column, else
905 it returns -1.
906
907 @see OnGetItemText(), OnGetItemImage(), OnGetItemAttr(),
908 OnGetItemColumnAttr()
909 */
910 virtual int OnGetItemColumnImage(long item, long column) const;
911
912 /**
913 This function must be overloaded in the derived class for a control with
914 @c wxLC_VIRTUAL style having an "image list" (see SetImageList(); if the
915 control doesn't have an image list, it is not necessary to overload it).
916 It should return the index of the items image in the controls image list
917 or -1 for no image.
918
919 In a control with @c wxLC_REPORT style, OnGetItemImage() only gets called for
920 the first column of each line.
921
922 The base class version always returns -1.
923
924 @see OnGetItemText(), OnGetItemColumnImage(), OnGetItemAttr()
925 */
926 virtual int OnGetItemImage(long item) const;
927
928 /**
929 This function @b must be overloaded in the derived class for a control with
930 @c wxLC_VIRTUAL style. It should return the string containing the text of
931 the given @a column for the specified @c item.
932
933 @see SetItemCount(), OnGetItemImage(), OnGetItemColumnImage(), OnGetItemAttr()
934 */
935 virtual wxString OnGetItemText(long item, long column) const;
936 };
937
938
939
940 /**
941 @class wxListEvent
942
943 A list event holds information about events associated with wxListCtrl objects.
944
945 @beginEventTable{wxListEvent}
946 @event{EVT_LIST_BEGIN_DRAG(id, func)}
947 Begin dragging with the left mouse button.
948 @event{EVT_LIST_BEGIN_RDRAG(id, func)}
949 Begin dragging with the right mouse button.
950 @event{EVT_LIST_BEGIN_LABEL_EDIT(id, func)}
951 Begin editing a label. This can be prevented by calling Veto().
952 @event{EVT_LIST_END_LABEL_EDIT(id, func)}
953 Finish editing a label. This can be prevented by calling Veto().
954 @event{EVT_LIST_DELETE_ITEM(id, func)}
955 Delete an item.
956 @event{EVT_LIST_DELETE_ALL_ITEMS(id, func)}
957 Delete all items.
958 @event{EVT_LIST_ITEM_SELECTED(id, func)}
959 The item has been selected.
960 @event{EVT_LIST_ITEM_DESELECTED(id, func)}
961 The item has been deselected.
962 @event{EVT_LIST_ITEM_ACTIVATED(id, func)}
963 The item has been activated (ENTER or double click).
964 @event{EVT_LIST_ITEM_FOCUSED(id, func)}
965 The currently focused item has changed.
966 @event{EVT_LIST_ITEM_MIDDLE_CLICK(id, func)}
967 The middle mouse button has been clicked on an item.
968 @event{EVT_LIST_ITEM_RIGHT_CLICK(id, func)}
969 The right mouse button has been clicked on an item.
970 @event{EVT_LIST_KEY_DOWN(id, func)}
971 A key has been pressed.
972 @event{EVT_LIST_INSERT_ITEM(id, func)}
973 An item has been inserted.
974 @event{EVT_LIST_COL_CLICK(id, func)}
975 A column (m_col) has been left-clicked.
976 @event{EVT_LIST_COL_RIGHT_CLICK(id, func)}
977 A column (m_col) (which can be -1 if the click occurred outside any column)
978 has been right-clicked.
979 @event{EVT_LIST_COL_BEGIN_DRAG(id, func)}
980 The user started resizing a column - can be vetoed.
981 @event{EVT_LIST_COL_DRAGGING(id, func)}
982 The divider between columns is being dragged.
983 @event{EVT_LIST_COL_END_DRAG(id, func)}
984 A column has been resized by the user.
985 @event{EVT_LIST_CACHE_HINT(id, func)}
986 Prepare cache for a virtual list control
987 @endEventTable
988
989
990 @library{wxbase}
991 @category{events}
992
993 @see wxListCtrl
994 */
995 class wxListEvent : public wxNotifyEvent
996 {
997 public:
998 /**
999 Constructor.
1000 */
1001 wxListEvent(wxEventType commandType = wxEVT_NULL, int id = 0);
1002
1003 /**
1004 For @c EVT_LIST_CACHE_HINT event only: return the first item which the
1005 list control advises us to cache.
1006 */
1007 long GetCacheFrom() const;
1008
1009 /**
1010 For @c EVT_LIST_CACHE_HINT event only: return the last item (inclusive)
1011 which the list control advises us to cache.
1012 */
1013 long GetCacheTo() const;
1014
1015 /**
1016 The column position: it is only used with @c COL events.
1017
1018 For the column dragging events, it is the column to the left of the divider
1019 being dragged, for the column click events it may be -1 if the user clicked
1020 in the list control header outside any column.
1021 */
1022 int GetColumn() const;
1023
1024 /**
1025 The data.
1026 */
1027 long GetData() const;
1028
1029 /**
1030 The image.
1031 */
1032 int GetImage() const;
1033
1034 /**
1035 The item index.
1036 */
1037 long GetIndex() const;
1038
1039 /**
1040 An item object, used by some events. See also wxListCtrl::SetItem.
1041 */
1042 const wxListItem& GetItem() const;
1043
1044 /**
1045 Key code if the event is a keypress event.
1046 */
1047 int GetKeyCode() const;
1048
1049 /**
1050 The (new) item label for @c EVT_LIST_END_LABEL_EDIT event.
1051 */
1052 const wxString& GetLabel() const;
1053
1054 /**
1055 The mask.
1056 */
1057 long GetMask() const;
1058
1059 /**
1060 The position of the mouse pointer if the event is a drag event.
1061 */
1062 wxPoint GetPoint() const;
1063
1064 /**
1065 The text.
1066 */
1067 const wxString& GetText() const;
1068
1069 /**
1070 This method only makes sense for @c EVT_LIST_END_LABEL_EDIT message and
1071 returns @true if it the label editing has been cancelled by the user
1072 (GetLabel() returns an empty string in this case but it doesn't allow the
1073 application to distinguish between really cancelling the edit and the
1074 admittedly rare case when the user wants to rename it to an empty string).
1075 */
1076 bool IsEditCancelled() const;
1077 };
1078
1079
1080
1081 /**
1082 @class wxListItemAttr
1083
1084 Represents the attributes (color, font, ...) of a wxListCtrl's wxListItem.
1085
1086 @library{wxbase}
1087 @category{ctrl}
1088
1089 @see @ref overview_listctrl, wxListCtrl, wxListItem
1090 */
1091 class wxListItemAttr
1092 {
1093 public:
1094 /**
1095 Default Constructor.
1096 */
1097 wxListItemAttr();
1098
1099 /**
1100 Construct a wxListItemAttr with the specified foreground and
1101 background colors and font.
1102 */
1103 wxListItemAttr(const wxColour& colText,
1104 const wxColour& colBack,
1105 const wxFont& font);
1106
1107 /**
1108 Returns the currently set background color.
1109 */
1110 const wxColour& GetBackgroundColour() const;
1111
1112 /**
1113 Returns the currently set font.
1114 */
1115 const wxFont& GetFont() const;
1116
1117 /**
1118 Returns the currently set text color.
1119 */
1120 const wxColour& GetTextColour() const;
1121
1122 /**
1123 Returns @true if the currently set background color is valid.
1124 */
1125 bool HasBackgroundColour() const;
1126
1127 /**
1128 Returns @true if the currently set font is valid.
1129 */
1130 bool HasFont() const;
1131
1132 /**
1133 Returns @true if the currently set text color is valid.
1134 */
1135 bool HasTextColour() const;
1136
1137 /**
1138 Sets a new background color.
1139 */
1140 void SetBackgroundColour(const wxColour& colour);
1141
1142 /**
1143 Sets a new font.
1144 */
1145 void SetFont(const wxFont& font);
1146
1147 /**
1148 Sets a new text color.
1149 */
1150 void SetTextColour(const wxColour& colour);
1151 };
1152
1153
1154
1155 /**
1156 @class wxListView
1157
1158 This class currently simply presents a simpler to use interface for the
1159 wxListCtrl -- it can be thought of as a @e façade for that complicated class.
1160
1161 Using it is preferable to using wxListCtrl directly whenever possible because
1162 in the future some ports might implement wxListView but not the full set of
1163 wxListCtrl features.
1164
1165 Other than different interface, this class is identical to wxListCtrl.
1166 In particular, it uses the same events, same window styles and so on.
1167
1168 @library{wxcore}
1169 @category{ctrl}
1170 @appearance{listview.png}
1171
1172 @see wxListView::SetColumnImage
1173 */
1174 class wxListView : public wxListCtrl
1175 {
1176 public:
1177 /**
1178 Resets the column image -- after calling this function, no image will be shown.
1179
1180 @param col
1181 the column to clear image for
1182
1183 @see SetColumnImage()
1184 */
1185 void ClearColumnImage(int col);
1186
1187 /**
1188 Sets focus to the item with the given @a index.
1189 */
1190 void Focus(long index);
1191
1192 /**
1193 Returns the first selected item in a (presumably) multiple selection control.
1194 Together with GetNextSelected() it can be used to iterate over all selected
1195 items in the control.
1196
1197 @return The first selected item, if any, -1 otherwise.
1198 */
1199 long GetFirstSelected() const;
1200
1201 /**
1202 Returns the currently focused item or -1 if none.
1203
1204 @see IsSelected(), Focus()
1205 */
1206 long GetFocusedItem() const;
1207
1208 /**
1209 Used together with GetFirstSelected() to iterate over all selected items
1210 in the control.
1211
1212 @return Returns the next selected item or -1 if there are no more of them.
1213 */
1214 long GetNextSelected(long item) const;
1215
1216 /**
1217 Returns @true if the item with the given @a index is selected,
1218 @false otherwise.
1219
1220 @see GetFirstSelected(), GetNextSelected()
1221 */
1222 bool IsSelected(long index) const;
1223
1224 /**
1225 Selects or unselects the given item.
1226
1227 @param n
1228 the item to select or unselect
1229 @param on
1230 if @true (default), selects the item, otherwise unselects it
1231
1232 @see wxListCtrl::SetItemState
1233 */
1234 void Select(long n, bool on = true);
1235
1236 /**
1237 Sets the column image for the specified column.
1238 To use the column images, the control must have a valid image list with
1239 at least one image.
1240
1241 @param col
1242 the column to set image for
1243 @param image
1244 the index of the column image in the controls image list
1245 */
1246 void SetColumnImage(int col, int image);
1247 };
1248
1249
1250 /**
1251 Column format (MSW only except wxLIST_FORMAT_LEFT).
1252 */
1253 enum wxListColumnFormat
1254 {
1255 wxLIST_FORMAT_LEFT,
1256 wxLIST_FORMAT_RIGHT,
1257 wxLIST_FORMAT_CENTRE,
1258 wxLIST_FORMAT_CENTER = wxLIST_FORMAT_CENTRE
1259 };
1260
1261 /**
1262 @class wxListItem
1263
1264 This class stores information about a wxListCtrl item or column.
1265
1266 wxListItem is a class which contains informations about:
1267 - Zero based item position; see SetId() and GetId().
1268 - Zero based column index; see SetColumn() and GetColumn().
1269 - The label (or header for columns); see SetText() and GetText().
1270 - The zero based index into an image list; see GetImage() and SetImage().
1271 - Application defined data; see SetData() and GetData().
1272 - For columns only: the width of the column; see SetWidth() and GetWidth().
1273 - For columns only: the format of the column; one of @c wxLIST_FORMAT_LEFT,
1274 @c wxLIST_FORMAT_RIGHT, @c wxLIST_FORMAT_CENTRE. See SetAlign() and GetAlign().
1275 - The state of the item; see SetState() and GetState().
1276 This is a bitlist of the following flags:
1277 - @c wxLIST_STATE_FOCUSED: The item has the focus.
1278 - @c wxLIST_STATE_SELECTED: The item is selected.
1279 - @c wxLIST_STATE_DONTCARE: Don't care what the state is. Win32 only.
1280 - @c wxLIST_STATE_DROPHILITED: The item is highlighted to receive a drop event. Win32 only.
1281 - @c wxLIST_STATE_CUT: The item is in the cut state. Win32 only.
1282 - A mask indicating which state flags are valid; this is a bitlist of the
1283 flags reported above for the item state. See SetStateMask() and GetStateMask().
1284 - A mask indicating which fields of this class are valid; see SetMask() and GetMask().
1285 This is a bitlist of the following flags:
1286 - @c wxLIST_MASK_STATE: The state field is valid.
1287 - @c wxLIST_MASK_TEXT: The label field is valid.
1288 - @c wxLIST_MASK_IMAGE: The image field is valid.
1289 - @c wxLIST_MASK_DATA: The application-defined data field is valid.
1290 - @c wxLIST_MASK_WIDTH: The column width field is valid.
1291 - @c wxLIST_MASK_FORMAT: The column format field is valid.
1292
1293 The wxListItem object can also contain item-specific colour and font
1294 information: for this you need to call one of SetTextColour(), SetBackgroundColour()
1295 or SetFont() functions on it passing it the colour/font to use.
1296 If the colour/font is not specified, the default list control colour/font is used.
1297
1298 @library{wxbase}
1299 @category{ctrl}
1300
1301 @see wxListCtrl
1302 */
1303 class wxListItem : public wxObject
1304 {
1305 public:
1306 /**
1307 Constructor.
1308 */
1309 wxListItem();
1310
1311 /**
1312 Resets the item state to the default.
1313 */
1314 void Clear();
1315
1316 /**
1317 Returns the alignment for this item.
1318 Can be one of @c wxLIST_FORMAT_LEFT, @c wxLIST_FORMAT_RIGHT or @c wxLIST_FORMAT_CENTRE.
1319 */
1320 wxListColumnFormat GetAlign() const;
1321
1322 /**
1323 Returns the background colour for this item.
1324 */
1325 wxColour GetBackgroundColour() const;
1326
1327 /**
1328 Returns the zero-based column; meaningful only in report mode.
1329 */
1330 int GetColumn() const;
1331
1332 /**
1333 Returns client data associated with the control.
1334 Please note that client data is associated with the item and not with subitems.
1335 */
1336 wxUIntPtr GetData() const;
1337
1338 /**
1339 Returns the font used to display the item.
1340 */
1341 wxFont GetFont() const;
1342
1343 /**
1344 Returns the zero-based item position.
1345 */
1346 long GetId() const;
1347
1348 /**
1349 Returns the zero-based index of the image associated with the item into
1350 the image list.
1351 */
1352 int GetImage() const;
1353
1354 /**
1355 Returns a bit mask indicating which fields of the structure are valid.
1356
1357 Can be any combination of the following values:
1358 - wxLIST_MASK_STATE: @b GetState is valid.
1359 - wxLIST_MASK_TEXT: @b GetText is valid.
1360 - wxLIST_MASK_IMAGE: @b GetImage is valid.
1361 - wxLIST_MASK_DATA: @b GetData is valid.
1362 - wxLIST_MASK_WIDTH: @b GetWidth is valid.
1363 - wxLIST_MASK_FORMAT: @b GetFormat is valid.
1364 */
1365 long GetMask() const;
1366
1367 /**
1368 Returns a bit field representing the state of the item.
1369
1370 Can be any combination of:
1371 - wxLIST_STATE_DONTCARE: Don't care what the state is. Win32 only.
1372 - wxLIST_STATE_DROPHILITED: The item is highlighted to receive a drop event. Win32 only.
1373 - wxLIST_STATE_FOCUSED: The item has the focus.
1374 - wxLIST_STATE_SELECTED: The item is selected.
1375 - wxLIST_STATE_CUT: The item is in the cut state. Win32 only.
1376 */
1377 long GetState() const;
1378
1379 /**
1380 Returns the label/header text.
1381 */
1382 const wxString& GetText() const;
1383
1384 /**
1385 Returns the text colour.
1386 */
1387 wxColour GetTextColour() const;
1388
1389 /**
1390 Meaningful only for column headers in report mode. Returns the column width.
1391 */
1392 int GetWidth() const;
1393
1394 /**
1395 Sets the alignment for the item. See also GetAlign()
1396 */
1397 void SetAlign(wxListColumnFormat align);
1398
1399 /**
1400 Sets the background colour for the item.
1401 */
1402 void SetBackgroundColour(const wxColour& colBack);
1403
1404 /**
1405 Sets the zero-based column. Meaningful only in report mode.
1406 */
1407 void SetColumn(int col);
1408
1409 //@{
1410 /**
1411 Sets client data for the item.
1412 Please note that client data is associated with the item and not with subitems.
1413 */
1414 void SetData(long data);
1415 void SetData(void* data);
1416 //@}
1417
1418 /**
1419 Sets the font for the item.
1420 */
1421 void SetFont(const wxFont& font);
1422
1423 /**
1424 Sets the zero-based item position.
1425 */
1426 void SetId(long id);
1427
1428 /**
1429 Sets the zero-based index of the image associated with the item
1430 into the image list.
1431 */
1432 void SetImage(int image);
1433
1434 /**
1435 Sets the mask of valid fields. See GetMask().
1436 */
1437 void SetMask(long mask);
1438
1439 /**
1440 Sets the item state flags (note that the valid state flags are influenced
1441 by the value of the state mask, see wxListItem::SetStateMask).
1442
1443 See GetState() for valid flag values.
1444 */
1445 void SetState(long state);
1446
1447 /**
1448 Sets the bitmask that is used to determine which of the state flags
1449 are to be set. See also SetState().
1450 */
1451 void SetStateMask(long stateMask);
1452
1453 /**
1454 Sets the text label for the item.
1455 */
1456 void SetText(const wxString& text);
1457
1458 /**
1459 Sets the text colour for the item.
1460 */
1461 void SetTextColour(const wxColour& colText);
1462
1463 /**
1464 Meaningful only for column headers in report mode. Sets the column width.
1465 */
1466 void SetWidth(int width);
1467 };
1468