interface/wx/headerctrl.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/headerctrl.h
   3 // Purpose:     interface of wxHeaderCtrl
   4 // Author:      Vadim Zeitlin
   5 // Created:     2008-12-01
   6 // Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 enum
  12 {
  13     // allow column drag and drop
  14     wxHD_ALLOW_REORDER = 0x0001,
  15
  16     // allow hiding (and showing back) the columns using the menu shown by
  17     // right clicking the header
  18     wxHD_ALLOW_HIDE = 0x0002,
  19
  20     // style used by default when creating the control
  21     wxHD_DEFAULT_STYLE = wxHD_ALLOW_REORDER
  22 };
  23
  24
  25
  26 /**
  27     @class wxHeaderCtrl
  28
  29     wxHeaderCtrl is the control containing the column headings which is usually
  30     used for display of tabular data.
  31
  32     It is used as part of wxGrid, in generic version wxDataViewCtrl and report
  33     view of wxListCtrl but can be also used independently. In general this
  34     class is meant to be used as part of another control which already stores
  35     the column information somewhere as it can't be used directly: instead you
  36     need to inherit from it and implement the GetColumn() method to provide
  37     column information. See wxHeaderCtrlSimple for a concrete control class
  38     which can be used directly.
  39
  40     In addition to labeling the columns, the control has the following
  41     features:
  42         - Column reordering support, either by explicitly configuring the
  43           columns order and calling SetColumnsOrder() or by dragging the
  44           columns interactively (if enabled).
  45         - Display of the icons in the header: this is often used to display a
  46           sort or reverse sort indicator when the column header is clicked.
  47
  48     Notice that this control itself doesn't do anything other than displaying
  49     the column headers. In particular column reordering and sorting must still
  50     be supported by the associated control displaying the real data under the
  51     header. Also remember to call ScrollWindow() method of the control if the
  52     associated data display window has a horizontal scrollbar, otherwise the
  53     headers wouldn't align with the data when the window is scrolled.
  54
  55     This control is implemented using the native header control under MSW
  56     systems and a generic implementation elsewhere.
  57
  58
  59     @section headerctrl_improvements Future Improvements
  60
  61     Some features are supported by the native MSW control and so could be
  62     easily implemented in this version of wxHeaderCtrl but need to be
  63     implemented in the generic version as well to be really useful. Please let
  64     us know if you need or, better, plan to work on implementing, any of them:
  65         - Displaying bitmaps instead of or together with the text
  66         - Custom drawn headers
  67         - Filters associated with a column.
  68
  69
  70     @beginStyleTable
  71     @style{wxHD_ALLOW_REORDER}
  72         If this style is specified (it is by default), the user can reorder
  73         the control columns by dragging them.
  74     @style{wxHD_ALLOW_HIDE}
  75         If this style is specified, the control shows a popup menu allowing the
  76         user to change the columns visibility on right mouse click. Notice that
  77         the program can always hide or show the columns, this style only
  78         affects the users capability to do it.
  79     @style{wxHD_DEFAULT_STYLE}
  80         Symbolic name for the default control style, currently equal to
  81         @c wxHD_ALLOW_REORDER.
  82     @endStyleTable
  83
  84     @beginEventEmissionTable{wxHeaderCtrlEvent}
  85     @event{EVT_HEADER_CLICK(id, func)}
  86         A column heading was clicked.
  87     @event{EVT_HEADER_RIGHT_CLICK(id, func)}
  88         A column heading was right clicked.
  89     @event{EVT_HEADER_MIDDLE_CLICK(id, func)}
  90         A column heading was clicked with the middle mouse button.
  91     @event{EVT_HEADER_DCLICK(id, func)}
  92         A column heading was double clicked.
  93     @event{EVT_HEADER_RIGHT_DCLICK(id, func)}
  94         A column heading was right double clicked.
  95     @event{EVT_HEADER_MIDDLE_DCLICK(id, func)}
  96         A column heading was double clicked with the middle mouse button.
  97     @event{EVT_HEADER_SEPARATOR_DCLICK(id, func)}
  98         Separator to the right of the specified column was double clicked
  99         (this action is commonly used to resize the column to fit its
 100         contents width and the control provides UpdateColumnWidthToFit() method
 101         to make implementing this easier).
 102     @event{EVT_HEADER_BEGIN_RESIZE(id, func)}
 103         The user started to drag the separator to the right of the column
 104         with the specified index (this can only happen for the columns for
 105         which wxHeaderColumn::IsResizeable() returns true). The event can
 106         be vetoed to prevent the column from being resized. If it isn't,
 107         the resizing and end resize (or dragging cancelled) events will be
 108         generated later.
 109     @event{EVT_HEADER_RESIZING(id, func)}
 110         The user is dragging the column with the specified index resizing
 111         it and its current width is wxHeaderCtrlEvent::GetWidth().
 112         The event can be vetoed to stop the dragging operation completely at
 113         any time.
 114     @event{EVT_HEADER_END_RESIZE(id, func)}
 115         The user stopped dragging the column by releasing the mouse.
 116         The column should normally be resized to the value of
 117         wxHeaderCtrlEvent::GetWidth().
 118     @event{EVT_HEADER_BEGIN_REORDER(id, func)}
 119         The user started to drag the column with the specified index (this
 120         can only happen for the controls with wxHD_ALLOW_REORDER style).
 121         This event can be vetoed to prevent the column from being reordered,
 122         otherwise the end reorder message will be generated later.
 123     @event{EVT_HEADER_END_REORDER(id, func)}
 124         The user dropped the column in its new location. The event can be
 125         vetoed to prevent the column from being placed at the new position
 126         or handled to update the display of the data in the associated
 127         control to match the new column location (available from
 128         wxHeaderCtrlEvent::GetNewOrder()).
 129     @event{EVT_HEADER_DRAGGING_CANCELLED(id, func)}
 130         The resizing or reordering operation currently in progress was
 131         cancelled. This can happen if the user pressed Esc key while
 132         dragging the mouse or the mouse capture was lost for some other
 133         reason. You only need to handle this event if your application
 134         entered into some modal mode when resizing or reordering began, in
 135         which case it should handle this event in addition to the matching
 136         end resizing or reordering ones.
 137     @endEventTable
 138
 139     @library{wxcore}
 140     @category{ctrl}
 141
 142     @see wxGrid, wxListCtrl, wxDataViewCtrl
 143 */
 144 class wxHeaderCtrl : public wxControl
 145 {
 146 public:
 147     /**
 148         Default constructor not creating the underlying window.
 149
 150         You must use Create() after creating the object using this constructor.
 151      */
 152     wxHeaderCtrl();
 153
 154     /**
 155         Constructor creating the window.
 156
 157         Please see Create() for the parameters documentation.
 158      */
 159     wxHeaderCtrl(wxWindow *parent,
 160                  wxWindowID winid = wxID_ANY,
 161                  const wxPoint& pos = wxDefaultPosition,
 162                  const wxSize& size = wxDefaultSize,
 163                  long style = wxHD_DEFAULT_STYLE,
 164                  const wxString& name = wxHeaderCtrlNameStr);
 165
 166     /**
 167         Create the header control window.
 168
 169         @param parent
 170             The parent window. The header control should be typically
 171             positioned along the top edge of this window.
 172         @param winid
 173             Id of the control or @c wxID_ANY if you don't care.
 174         @param pos
 175             The initial position of the control.
 176         @param size
 177             The initial size of the control (usually not very useful as this
 178             control will typically be resized to have the same width as the
 179             associated data display control).
 180         @param style
 181             The control style, @c wxHD_DEFAULT_STYLE by default. Notice that
 182             the default style allows the user to reorder the columns by
 183             dragging them and you need to explicitly turn this feature off by
 184             using @code wxHD_DEFAULT_STYLE & ~wxHD_ALLOW_REORDER @endcode if
 185             this is undesirable.
 186         @param name
 187             The name of the control.
 188      */
 189     bool Create(wxWindow *parent,
 190                 wxWindowID winid = wxID_ANY,
 191                 const wxPoint& pos = wxDefaultPosition,
 192                 const wxSize& size = wxDefaultSize,
 193                 long style = wxHD_DEFAULT_STYLE,
 194                 const wxString& name = wxHeaderCtrlNameStr);
 195
 196     /**
 197         Set the number of columns in the control.
 198
 199         The control will use GetColumn() to get information about all the
 200         new columns and refresh itself, i.e. this method also has the same
 201         effect as calling UpdateColumn() for all columns but it should only be
 202         used if the number of columns really changed.
 203      */
 204     void SetColumnCount(unsigned int count);
 205
 206     /**
 207         Return the number of columns in the control.
 208
 209         @return
 210             Number of columns as previously set by SetColumnCount().
 211
 212         @see IsEmpty()
 213      */
 214     unsigned int GetColumnCount() const;
 215
 216     /**
 217         Return whether the control has any columns.
 218
 219         @see GetColumnCount()
 220      */
 221     bool IsEmpty() const;
 222
 223     /**
 224         Update the column with the given index.
 225
 226         When the value returned by GetColumn() changes, this method must be
 227         called to notify the control about the change and update the visual
 228         display to match the new column data.
 229
 230         @param idx
 231             The column index, must be less than GetColumnCount().
 232      */
 233     void UpdateColumn(unsigned int idx);
 234
 235     /**
 236         Change the columns display order.
 237
 238         The display order defines the order in which the columns appear on the
 239         screen and does @em not affect the interpretation of indices by all the
 240         other class methods.
 241
 242         The @a order array specifies the column indices corresponding to the
 243         display positions.
 244
 245         @param order
 246             A permutation of all column indices, i.e. an array of size
 247             GetColumnsOrder() containing all column indices exactly once. The
 248             n-th element of this array defines the index of the column shown at
 249             the n-th position from left (for the default left-to-right writing
 250             direction).
 251
 252         @see wxListCtrl::SetColumnsOrder()
 253      */
 254     void SetColumnsOrder(const wxArrayInt& order);
 255
 256     /**
 257         Return the array describing the columns display order.
 258
 259         For the controls without wxHD_ALLOW_REORDER style the returned array
 260         will be the same as was passed to SetColumnsOrder() previously or
 261         define the default order (with n-th element being n) if it hadn't been
 262         called. But for the controls with wxHD_ALLOW_REORDER style, the columns
 263         can be also reordered by user.
 264      */
 265     wxArrayInt GetColumnsOrder() const;
 266
 267     /**
 268         Return the index of the column displayed at the given position.
 269
 270         @param pos
 271             The display position, e.g. 0 for the left-most column, 1 for the
 272             next one and so on until GetColumnCount() - 1.
 273
 274         @see GetColumnPos()
 275      */
 276     unsigned int GetColumnAt(unsigned int pos) const;
 277
 278     /**
 279         Get the position at which this column is currently displayed.
 280
 281         Notice that a valid position is returned even for the hidden columns
 282         currently.
 283
 284         @param idx
 285             The column index, must be less than GetColumnCount().
 286
 287         @see GetColumnAt()
 288      */
 289     unsigned int GetColumnPos(unsigned int idx) const;
 290
 291     /**
 292         Reset the columns order to the natural one.
 293
 294         After calling this function, the column with index @c idx appears at
 295         position @c idx in the control.
 296      */
 297     void ResetColumnsOrder();
 298
 299     /**
 300         Helper function to manipulate the array of column indices.
 301
 302         This function reshuffles the array of column indices indexed by
 303         positions (i.e. using the same convention as for SetColumnsOrder()) so
 304         that the column with the given index is found at the specified
 305         position.
 306
 307         @param order
 308             Array containing the indices of columns in order of their
 309             positions.
 310         @param idx
 311             The index of the column to move.
 312         @param pos
 313             The new position for the column @a idx.
 314      */
 315     static void MoveColumnInOrderArray(wxArrayInt& order,
 316                                        unsigned int idx,
 317                                        unsigned int pos);
 318
 319     /**
 320         Show the popup menu allowing the user to show or hide the columns.
 321
 322         This functions shows the popup menu containing all columns with check
 323         marks for the ones which are currently shown and allows the user to
 324         check or uncheck them to toggle their visibility. It is called from the
 325         default EVT_HEADER_RIGHT_CLICK handler for the controls which have
 326         wxHD_ALLOW_HIDE style. And if the column has wxHD_ALLOW_REORDER style
 327         as well, the menu also contains an item to customize the columns shown
 328         using which results in ShowCustomizeDialog() being called, please see
 329         its description for more details.
 330
 331         If a column was toggled, UpdateColumnVisibility() virtual function is
 332         called so it must be implemented for the controls with wxHD_ALLOW_HIDE
 333         style or if you call this function explicitly.
 334
 335         @param pt
 336             The position of the menu, in the header window coordinates.
 337         @param title
 338             The title for the menu if not empty.
 339         @return
 340             @true if a column was shown or hidden or @false if nothing was
 341             done, e.g. because the menu was cancelled.
 342      */
 343     bool ShowColumnsMenu(const wxPoint& pt, const wxString& title = wxString());
 344
 345     /**
 346         Helper function appending the checkable items corresponding to all the
 347         columns to the given menu.
 348
 349         This function is used by ShowColumnsMenu() but can also be used if you
 350         show your own custom columns menu and still want all the columns shown
 351         in it. It appends menu items with column labels as their text and
 352         consecutive ids starting from @a idColumnsBase to the menu and checks
 353         the items corresponding to the currently visible columns.
 354
 355         Example of use:
 356         @code
 357             wxMenu menu;
 358             menu.Append(100, "Some custom command");
 359             menu.AppendSeparator();
 360             AddColumnsItems(menu, 200);
 361             const int rc = GetPopupMenuSelectionFromUser(menu, pt);
 362             if ( rc >= 200 )
 363                 ... toggle visibility of the column rc-200 ...
 364         @endcode
 365
 366         @param menu
 367             The menu to append the items to. It may be currently empty or not.
 368         @param idColumnsBase
 369             The id for the menu item corresponding to the first column, the
 370             other ones are consecutive starting from it. It should be positive.
 371      */
 372     void AddColumnsItems(wxMenu& menu, int idColumnsBase = 0);
 373
 374     /**
 375         Show the column customization dialog.
 376
 377         This function displays a modal dialog containing the list of all
 378         columns which the user can use to reorder them as well as show or hide
 379         individual columns.
 380
 381         If the user accepts the changes done in the dialog, the virtual
 382         methods UpdateColumnVisibility() and UpdateColumnsOrder() will be
 383         called so they must be overridden in the derived class if this method
 384         is ever called. Please notice that the user will be able to invoke it
 385         interactively from the header popup menu if the control has both
 386         wxHD_ALLOW_HIDE and wxHD_ALLOW_REORDER styles.
 387
 388         @see wxRearrangeDialog
 389      */
 390     bool ShowCustomizeDialog();
 391
 392     /**
 393         Returns width needed for given column's title.
 394
 395         @since 2.9.4
 396      */
 397     int GetColumnTitleWidth(const wxHeaderColumn& col);
 398
 399 protected:
 400     /**
 401         Method to be implemented by the derived classes to return the
 402         information for the given column.
 403
 404         @param idx
 405             The column index, between 0 and the value last passed to
 406             SetColumnCount().
 407      */
 408     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const = 0;
 409
 410     /**
 411         Method called when the column visibility is changed by the user.
 412
 413         This method is called from ShowColumnsMenu() or ShowCustomizeDialog()
 414         when the user interactively hides or shows a column. A typical
 415         implementation will simply update the internally stored column state.
 416         Notice that there is no need to call UpdateColumn() from this method as
 417         it is already done by wxHeaderCtrl itself.
 418
 419         The base class version doesn't do anything and must be overridden if
 420         this method is called.
 421
 422         @param idx
 423             The index of the column whose visibility was toggled.
 424         @param show
 425             The new visibility value, @true if the column is now shown or
 426             @false if it is not hidden.
 427      */
 428     virtual void UpdateColumnVisibility(unsigned int idx, bool show);
 429
 430     /**
 431         Method called when the columns order is changed in the customization
 432         dialog.
 433
 434         This method is only called from ShowCustomizeDialog() when the user
 435         changes the order of columns. In particular it is @em not called if a
 436         single column changes place because the user dragged it to the new
 437         location, the EVT_HEADER_END_REORDER event handler should be used to
 438         react to this.
 439
 440         A typical implementation in a derived class will update the display
 441         order of the columns in the associated control, if any. Notice that
 442         there is no need to call SetColumnsOrder() from it as wxHeaderCtrl does
 443         it itself.
 444
 445         The base class version doesn't do anything and must be overridden if
 446         this method is called.
 447
 448         @param order
 449             The new column order. This array uses the same convention as
 450             SetColumnsOrder().
 451      */
 452     virtual void UpdateColumnsOrder(const wxArrayInt& order);
 453
 454     /**
 455         Method which may be implemented by the derived classes to allow double
 456         clicking the column separator to resize the column to fit its contents.
 457
 458         When a separator is double clicked, the default handler of
 459         EVT_HEADER_SEPARATOR_DCLICK event calls this function and refreshes the
 460         column if it returns @true so to implement the resizing of the column
 461         to fit its width on header double click you need to implement this
 462         method using logic similar to this example:
 463         @code
 464             class MyHeaderColumn : public wxHeaderColumn
 465             {
 466             public:
 467                 ...
 468
 469                 void SetWidth(int width) { m_width = width; }
 470                 virtual int GetWidth() const { return m_width; }
 471
 472             private:
 473                 int m_width;
 474             };
 475
 476             class MyHeaderCtrl : public wxHeaderCtrl
 477             {
 478             public:
 479             protected:
 480                 virtual wxHeaderColumn& GetColumn(unsigned int idx) const
 481                 {
 482                     return m_cols[idx];
 483                 }
 484
 485                 virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 486                 {
 487                     int widthContents = ... compute minimal width for column idx ...
 488                     m_cols[idx].SetWidth(wxMax(widthContents, widthTitle));
 489                     return true;
 490                 }
 491
 492                 wxVector<MyHeaderColumn> m_cols;
 493             };
 494         @endcode
 495
 496         Base class version simply returns @false.
 497
 498         @param idx
 499             The zero-based index of the column to update.
 500         @param widthTitle
 501             Contains minimal width needed to display the column header itself
 502             and will usually be used as a starting point for the fitting width
 503             calculation.
 504
 505         @return
 506             @true to indicate that the column was resized, i.e. GetColumn() now
 507             returns the new width value, and so must be refreshed or @false
 508             meaning that the control didn't reach to the separator double click.
 509      */
 510     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle);
 511
 512     /**
 513         Can be overridden in the derived class to update internal data
 514         structures when the number of the columns in the control changes.
 515
 516         This method is called by SetColumnCount() before effectively changing
 517         the number of columns.
 518
 519         The base class version does nothing but it is good practice to still
 520         call it from the overridden version in the derived class.
 521      */
 522     virtual void OnColumnCountChanging(unsigned int count);
 523 };
 524
 525
 526 /**
 527     @class wxHeaderCtrlSimple
 528
 529     wxHeaderCtrlSimple is a concrete header control which can be used directly,
 530     without inheriting from it as you need to do when using wxHeaderCtrl
 531     itself.
 532
 533     When using it, you need to use simple AppendColumn(), InsertColumn() and
 534     DeleteColumn() methods instead of setting the number of columns with
 535     SetColumnCount() and returning the information about them from the
 536     overridden GetColumn().
 537
 538     @library{wxcore}
 539     @category{ctrl}
 540
 541     @see wxHeaderCtrl
 542 */
 543 class wxHeaderCtrlSimple : public wxHeaderCtrl
 544 {
 545 public:
 546     /**
 547         Default constructor not creating the underlying window.
 548
 549         You must use Create() after creating the object using this constructor.
 550      */
 551     wxHeaderCtrlSimple();
 552
 553     /**
 554         Constructor creating the window.
 555
 556         Please see the base class wxHeaderCtrl::Create() method for the
 557         parameters description.
 558      */
 559     wxHeaderCtrlSimple(wxWindow *parent,
 560                        wxWindowID winid = wxID_ANY,
 561                        const wxPoint& pos = wxDefaultPosition,
 562                        const wxSize& size = wxDefaultSize,
 563                        long style = wxHD_DEFAULT_STYLE,
 564                        const wxString& name = wxHeaderCtrlNameStr);
 565
 566     /**
 567         Insert the column at the given position.
 568
 569         @param col
 570             The column to insert. Notice that because of the existence of
 571             implicit conversion from wxString to wxHeaderColumn a string
 572             can be passed directly here.
 573         @param idx
 574             The position of the new column, from 0 to GetColumnCount(). Using
 575             GetColumnCount() means to append the column to the end.
 576
 577         @see AppendColumn()
 578      */
 579     void InsertColumn(const wxHeaderColumnSimple& col, unsigned int idx);
 580
 581     /**
 582         Append the column to the end of the control.
 583
 584         @see InsertColumn()
 585      */
 586     void AppendColumn(const wxHeaderColumnSimple& col);
 587
 588     /**
 589         Delete the column at the given position.
 590
 591         @see InsertColumn(), AppendColumn()
 592      */
 593     void DeleteColumn(unsigned int idx);
 594
 595     /**
 596         Show or hide the column.
 597
 598         Initially the column is shown by default or hidden if it was added with
 599         wxCOL_HIDDEN flag set.
 600
 601         When a column is hidden, it doesn't appear at all on the screen but its
 602         index is still taken into account when working with other columns. E.g.
 603         if there are three columns 0, 1 and 2 and the column 1 is hidden you
 604         still need to use index 2 to refer to the last visible column.
 605
 606         @param idx
 607             The index of the column to show or hide, from 0 to GetColumnCount().
 608         @param show
 609             Indicates whether the column should be shown (default) or hidden.
 610      */
 611     void ShowColumn(unsigned int idx, bool show = true);
 612
 613     /**
 614         Hide the column with the given index.
 615
 616         This is the same as calling @code ShowColumn(idx, false) @endcode.
 617
 618         @param idx
 619             The index of the column to show or hide, from 0 to GetColumnCount().
 620      */
 621     void HideColumn(unsigned int idx);
 622
 623     /**
 624         Update the column sort indicator.
 625
 626         The sort indicator, if shown, is typically an arrow pointing upwards or
 627         downwards depending on whether the control contents is sorted in
 628         ascending or descending order.
 629
 630         @param idx
 631             The column to set the sort indicator for.
 632             If @c -1 is given, then the currently shown sort indicator
 633             will be removed.
 634         @param sortOrder
 635             If @true or @false show the sort indicator corresponding to
 636             ascending or descending sort order respectively.
 637      */
 638     void ShowSortIndicator(unsigned int idx, bool sortOrder = true);
 639
 640     /**
 641         Remove the sort indicator from the column being used as sort key.
 642
 643         @see ShowSortIndicator
 644      */
 645     void RemoveSortIndicator();
 646
 647 protected:
 648     /**
 649         This function can be overridden in the classes deriving from this
 650         control instead of overriding UpdateColumnWidthToFit().
 651
 652         To implement automatic column resizing to fit its contents width when
 653         the column divider is double clicked, you need to simply return the
 654         fitting width for the given column @a idx from this method, the control
 655         will automatically use the biggest value between the one returned from
 656         here and the one needed for the display of the column title itself.
 657
 658         The base class version returns -1 indicating that this function is not
 659         implemented.
 660      */
 661     virtual int GetBestFittingWidth(unsigned int idx) const;
 662 };
 663
 664 /**
 665     @class wxHeaderCtrlEvent
 666
 667     Event class representing the events generated by wxHeaderCtrl.
 668
 669     @library{wxcore}
 670     @category{events}
 671
 672     @see wxHeaderCtrl
 673 */
 674 class wxHeaderCtrlEvent : public wxNotifyEvent
 675 {
 676 public:
 677     wxHeaderCtrlEvent(wxEventType commandType = wxEVT_NULL, int winid = 0);
 678     wxHeaderCtrlEvent(const wxHeaderCtrlEvent& event);
 679
 680     /**
 681         Return the index of the column affected by this event.
 682
 683         This method can be called for all header control events.
 684      */
 685     int GetColumn() const;
 686     void SetColumn(int col);
 687
 688     /**
 689         Return the current width of the column.
 690
 691         This method can only be called for the dragging events.
 692      */
 693     int GetWidth() const;
 694     void SetWidth(int width);
 695
 696     /**
 697         Return the new order of the column.
 698
 699         This method can only be called for a reorder event for which it
 700         indicates the tentative new position for the column GetColumn()
 701         selected by the user. If the event is not vetoed, this will become the
 702         new column position in wxHeaderCtrl::GetColumnsOrder().
 703      */
 704     unsigned int GetNewOrder() const;
 705     void SetNewOrder(unsigned int order);
 706 };
 707
 708
 709
 710 wxEventType wxEVT_HEADER_CLICK;
 711 wxEventType wxEVT_HEADER_RIGHT_CLICK;
 712 wxEventType wxEVT_HEADER_MIDDLE_CLICK;
 713 wxEventType wxEVT_HEADER_DCLICK;
 714 wxEventType wxEVT_HEADER_RIGHT_DCLICK;
 715 wxEventType wxEVT_HEADER_MIDDLE_DCLICK;
 716 wxEventType wxEVT_HEADER_SEPARATOR_DCLICK;
 717 wxEventType wxEVT_HEADER_BEGIN_RESIZE;
 718 wxEventType wxEVT_HEADER_RESIZING;
 719 wxEventType wxEVT_HEADER_END_RESIZE;
 720 wxEventType wxEVT_HEADER_BEGIN_REORDER;
 721 wxEventType wxEVT_HEADER_END_REORDER;
 722 wxEventType wxEVT_HEADER_DRAGGING_CANCELLED;