interface/wx/propgrid/propgrid.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        propgrid.h
   3 // Purpose:     interface of wxPropertyGrid
   4 // Author:      wxWidgets team
   5 // RCS-ID:      $Id$
   6 // Licence:     wxWindows license
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9
  10 /**
  11     @section propgrid_window_styles wxPropertyGrid Window Styles
  12
  13     SetWindowStyleFlag method can be used to modify some of these at run-time.
  14     @{
  15 */
  16 enum wxPG_WINDOW_STYLES
  17 {
  18
  19 /**
  20     This will cause Sort() automatically after an item is added.
  21     When inserting a lot of items in this mode, it may make sense to
  22     use Freeze() before operations and Thaw() afterwards to increase
  23     performance.
  24 */
  25 wxPG_AUTO_SORT                      = 0x00000010,
  26
  27 /**
  28     Categories are not initially shown (even if added).
  29     IMPORTANT NOTE: If you do not plan to use categories, then this
  30     style will waste resources.
  31     This flag can also be changed using wxPropertyGrid::EnableCategories method.
  32 */
  33 wxPG_HIDE_CATEGORIES                = 0x00000020,
  34
  35 /**
  36     This style combines non-categoric mode and automatic sorting.
  37 */
  38 wxPG_ALPHABETIC_MODE                = (wxPG_HIDE_CATEGORIES|wxPG_AUTO_SORT),
  39
  40 /**
  41     Modified values are shown in bold font. Changing this requires Refresh()
  42     to show changes.
  43 */
  44 wxPG_BOLD_MODIFIED                  = 0x00000040,
  45
  46 /**
  47     When wxPropertyGrid is resized, splitter moves to the center. This
  48     behavior stops once the user manually moves the splitter.
  49 */
  50 wxPG_SPLITTER_AUTO_CENTER           = 0x00000080,
  51
  52 /**
  53     Display tool tips for cell text that cannot be shown completely. If
  54     wxUSE_TOOLTIPS is 0, then this doesn't have any effect.
  55 */
  56 wxPG_TOOLTIPS                       = 0x00000100,
  57
  58 /**
  59     Disables margin and hides all expand/collapse buttons that would appear
  60     outside the margin (for sub-properties). Toggling this style automatically
  61     expands all collapsed items.
  62 */
  63 wxPG_HIDE_MARGIN                    = 0x00000200,
  64
  65 /**
  66     This style prevents user from moving the splitter.
  67 */
  68 wxPG_STATIC_SPLITTER                = 0x00000400,
  69
  70 /**
  71     Combination of other styles that make it impossible for user to modify
  72     the layout.
  73 */
  74 wxPG_STATIC_LAYOUT                  = (wxPG_HIDE_MARGIN|wxPG_STATIC_SPLITTER),
  75
  76 /**
  77     Disables wxTextCtrl based editors for properties which
  78     can be edited in another way. Equals calling
  79     wxPropertyGrid::LimitPropertyEditing() for all added properties.
  80 */
  81 wxPG_LIMITED_EDITING                = 0x00000800,
  82
  83 /**
  84     wxPropertyGridManager only: Show tool bar for mode and page selection.
  85 */
  86 wxPG_TOOLBAR                        = 0x00001000,
  87
  88 /**
  89     wxPropertyGridManager only: Show adjustable text box showing description
  90     or help text, if available, for currently selected property.
  91 */
  92 wxPG_DESCRIPTION                    = 0x00002000
  93
  94 };
  95
  96 enum wxPG_EX_WINDOW_STYLES
  97 {
  98
  99 /**
 100     NOTE: wxPG_EX_xxx are extra window styles and must be set using SetExtraStyle()
 101     member function.
 102
 103     Speeds up switching to wxPG_HIDE_CATEGORIES mode. Initially, if
 104     wxPG_HIDE_CATEGORIES is not defined, the non-categorized data storage is not
 105     activated, and switching the mode first time becomes somewhat slower.
 106     wxPG_EX_INIT_NOCAT activates the non-categorized data storage right away.
 107
 108     NOTE: If you do plan not switching to non-categoric mode, or if
 109     you don't plan to use categories at all, then using this style will result
 110     in waste of resources.
 111 */
 112 wxPG_EX_INIT_NOCAT                  = 0x00001000,
 113
 114 /**
 115     Extended window style that sets wxPropertyGridManager tool bar to not
 116     use flat style.
 117 */
 118 wxPG_EX_NO_FLAT_TOOLBAR             = 0x00002000,
 119
 120 /**
 121     Shows alphabetic/categoric mode buttons from tool bar.
 122 */
 123 wxPG_EX_MODE_BUTTONS                = 0x00008000,
 124
 125 /**
 126     Show property help strings as tool tips instead as text on the status bar.
 127     You can set the help strings using SetPropertyHelpString member function.
 128 */
 129 wxPG_EX_HELP_AS_TOOLTIPS            = 0x00010000,
 130
 131 /**
 132     Allows relying on native double-buffering.
 133 */
 134 wxPG_EX_NATIVE_DOUBLE_BUFFERING         = 0x00080000,
 135
 136 /**
 137     Set this style to let user have ability to set values of properties to
 138     unspecified state. Same as setting wxPG_PROP_AUTO_UNSPECIFIED for
 139     all properties.
 140 */
 141 wxPG_EX_AUTO_UNSPECIFIED_VALUES         = 0x00200000,
 142
 143 /**
 144     If this style is used, built-in attributes (such as wxPG_FLOAT_PRECISION and
 145     wxPG_STRING_PASSWORD) are not stored into property's attribute storage (thus
 146     they are not readable).
 147
 148     Note that this option is global, and applies to all wxPG property containers.
 149 */
 150 wxPG_EX_WRITEONLY_BUILTIN_ATTRIBUTES    = 0x00400000,
 151
 152 /**
 153     Hides page selection buttons from tool bar.
 154 */
 155 wxPG_EX_HIDE_PAGE_BUTTONS               = 0x01000000
 156
 157 };
 158
 159 /** Combines various styles.
 160 */
 161 #define wxPG_DEFAULT_STYLE              (0)
 162
 163 /** Combines various styles.
 164 */
 165 #define wxPGMAN_DEFAULT_STYLE       (0)
 166
 167 /** @}
 168 */
 169
 170 // -----------------------------------------------------------------------
 171
 172 /**
 173     @section propgrid_vfbflags wxPropertyGrid Validation Failure Behavior Flags
 174     @{
 175 */
 176
 177 enum wxPG_VALIDATION_FAILURE_BEHAVIOR_FLAGS
 178 {
 179
 180 /**
 181     Prevents user from leaving property unless value is valid. If this
 182     behavior flag is not used, then value change is instead cancelled.
 183 */
 184 wxPG_VFB_STAY_IN_PROPERTY           = 0x01,
 185
 186 /**
 187     Calls wxBell() on validation failure.
 188 */
 189 wxPG_VFB_BEEP                       = 0x02,
 190
 191 /**
 192     Cell with invalid value will be marked (with red colour).
 193 */
 194 wxPG_VFB_MARK_CELL                  = 0x04,
 195
 196 /**
 197     Display customizable text message explaining the situation.
 198 */
 199 wxPG_VFB_SHOW_MESSAGE               = 0x08,
 200
 201 /**
 202     Defaults.
 203 */
 204 wxPG_VFB_DEFAULT                    = wxPG_VFB_STAY_IN_PROPERTY|wxPG_VFB_BEEP,
 205 };
 206
 207 /** @}
 208 */
 209
 210 typedef wxByte wxPGVFBFlags;
 211
 212 /**
 213     wxPGValidationInfo
 214
 215     Used to convey validation information to and from functions that
 216     actually perform validation. Mostly used in custom property classes.
 217 */
 218 class wxPGValidationInfo
 219 {
 220 public:
 221     /**
 222         @return Returns failure behavior which is a combination of
 223             @ref propgrid_vfbflags.
 224     */
 225     wxPGVFBFlags GetFailureBehavior();
 226
 227     /**
 228         Returns current failure message.
 229     */
 230     const wxString& GetFailureMessage() const;
 231
 232     /**
 233         Returns reference to pending value.
 234     */
 235     const wxVariant& GetValue() const;
 236
 237     /** Set validation failure behavior
 238
 239         @param failureBehavior
 240             Mixture of @ref propgrid_vfbflags.
 241     */
 242     void SetFailureBehavior(wxPGVFBFlags failureBehavior);
 243
 244     /**
 245         Set current failure message.
 246     */
 247     void SetFailureMessage(const wxString& message);
 248 };
 249
 250 // -----------------------------------------------------------------------
 251
 252 /**
 253     @section propgrid_keyboard_actions wxPropertyGrid Action Identifiers
 254
 255     These are used with wxPropertyGrid::AddActionTrigger() and
 256     wxPropertyGrid::ClearActionTriggers().
 257     @{
 258 */
 259
 260 enum wxPG_KEYBOARD_ACTIONS
 261 {
 262     wxPG_ACTION_INVALID = 0,
 263     wxPG_ACTION_NEXT_PROPERTY,
 264     wxPG_ACTION_PREV_PROPERTY,
 265     wxPG_ACTION_EXPAND_PROPERTY,
 266     wxPG_ACTION_COLLAPSE_PROPERTY,
 267     wxPG_ACTION_CANCEL_EDIT,
 268     wxPG_ACTION_MAX
 269 };
 270
 271 /** @}
 272 */
 273
 274 // -----------------------------------------------------------------------
 275
 276 /**
 277     @class wxPropertyGrid
 278
 279     wxPropertyGrid is a specialized grid for editing properties - in other
 280     words name = value pairs. List of ready-to-use property classes include
 281     strings, numbers, flag sets, fonts, colours and many others. It is possible,
 282     for example, to categorize properties, set up a complete tree-hierarchy,
 283     add more than two columns, and set arbitrary per-property attributes.
 284
 285     Please note that most member functions are inherited and as such not
 286     documented on this page. This means you will probably also want to read
 287     wxPropertyGridInterface class reference.
 288
 289     See also @ref overview_propgrid.
 290
 291     @section propgrid_window_styles_ Window Styles
 292
 293     See @ref propgrid_window_styles.
 294
 295     @section propgrid_event_handling Event Handling
 296
 297     To process input from a property grid control, use these event handler macros
 298     to direct input to member functions that take a wxPropertyGridEvent argument.
 299
 300     @beginEventTable{wxPropertyGridEvent}
 301     @event{EVT_PG_SELECTED (id, func)}
 302         Respond to wxEVT_PG_SELECTED event, generated when property value
 303         has been changed by user.
 304     @event{EVT_PG_CHANGING(id, func)}
 305         Respond to wxEVT_PG_CHANGING event, generated when property value
 306         is about to be changed by user. Use wxPropertyGridEvent::GetValue()
 307         to take a peek at the pending value, and wxPropertyGridEvent::Veto()
 308         to prevent change from taking place, if necessary.
 309     @event{EVT_PG_HIGHLIGHTED(id, func)}
 310         Respond to wxEVT_PG_HIGHLIGHTED event, which occurs when mouse
 311         moves over a property. Event's property is NULL if hovered area does
 312         not belong to any property.
 313     @event{EVT_PG_RIGHT_CLICK(id, func)}
 314         Respond to wxEVT_PG_RIGHT_CLICK event, which occurs when property is
 315         clicked on with right mouse button.
 316     @event{EVT_PG_DOUBLE_CLICK(id, func)}
 317         Respond to wxEVT_PG_DOUBLE_CLICK event, which occurs when property is
 318         double-clicked on with left mouse button.
 319     @event{EVT_PG_ITEM_COLLAPSED(id, func)}
 320         Respond to wxEVT_PG_ITEM_COLLAPSED event, generated when user collapses
 321         a property or category.
 322     @event{EVT_PG_ITEM_EXPANDED(id, func)}
 323         Respond to wxEVT_PG_ITEM_EXPANDED event, generated when user expands
 324         a property or category.
 325     @endEventTable
 326
 327     @remarks
 328     Use Freeze() and Thaw() respectively to disable and enable drawing.
 329     This will also delay sorting etc. miscellaneous calculations to the last
 330     possible moment.
 331
 332     @library{wxpropgrid}
 333     @category{propgrid}
 334     @appearance{propertygrid.png}
 335 */
 336 class wxPropertyGrid : public wxScrolledWindow, public wxPropertyGridInterface
 337 {
 338 public:
 339     /**
 340         Two step constructor.
 341         Call Create() when this constructor is called to build up the wxPropertyGrid
 342     */
 343     wxPropertyGrid();
 344
 345     /**
 346         Constructor.
 347         The styles to be used are styles valid for the wxWindow and wxScrolledWindow.
 348
 349         @see @ref propgrid_window_styles.
 350     */
 351     wxPropertyGrid( wxWindow *parent, wxWindowID id = wxID_ANY,
 352                     const wxPoint& pos = wxDefaultPosition,
 353                     const wxSize& size = wxDefaultSize,
 354                     long style = wxPG_DEFAULT_STYLE,
 355                     const wxChar* name = wxPropertyGridNameStr );
 356
 357     /** Destructor */
 358     virtual ~wxPropertyGrid();
 359
 360     /**
 361         Adds given key combination to trigger given action.
 362
 363         @param action
 364             Which action to trigger. See @ref propgrid_keyboard_actions.
 365         @param keycode
 366             Which keycode triggers the action.
 367         @param modifiers
 368             Which key event modifiers, in addition to keycode, are needed to
 369             trigger the action.
 370     */
 371     void AddActionTrigger( int action, int keycode, int modifiers = 0 );
 372
 373     /**
 374         This static function enables or disables automatic use of
 375         wxGetTranslation() for following strings: wxEnumProperty list labels,
 376         wxFlagsProperty child property labels.
 377
 378         Default is false.
 379     */
 380     static void AutoGetTranslation( bool enable );
 381
 382     /**
 383         Changes value of a property, as if from an editor. Use this instead of
 384         SetPropertyValue() if you need the value to run through validation
 385         process, and also send the property change event.
 386
 387         @return Returns true if value was successfully changed.
 388     */
 389     bool ChangePropertyValue( wxPGPropArg id, wxVariant newValue );
 390
 391     /**
 392         Centers the splitter. If argument is true, automatic splitter centering
 393         is enabled (only applicable if style wxPG_SPLITTER_AUTO_CENTER was
 394         defined).
 395     */
 396     void CenterSplitter( bool enable_auto_centering = false );
 397
 398     /**
 399         Deletes all properties.
 400     */
 401     virtual void Clear();
 402
 403     /**
 404         Clears action triggers for given action.
 405
 406         @param action
 407             Which action to trigger. @ref propgrid_keyboard_actions.
 408     */
 409     void ClearActionTriggers( int action );
 410
 411     /**
 412         Forces updating the value of property from the editor control.
 413         Note that wxEVT_PG_CHANGING and wxEVT_PG_CHANGED are dispatched using
 414         ProcessEvent, meaning your event handlers will be called immediately.
 415
 416         @return Returns @true if anything was changed.
 417     */
 418     virtual bool CommitChangesFromEditor( wxUint32 flags = 0 );
 419
 420     /**
 421         Two step creation. Whenever the control is created without any
 422         parameters, use Create to actually create it. Don't access the control's
 423         public methods before this is called
 424
 425         @see @ref propgrid_window_styles.
 426     */
 427     bool Create( wxWindow *parent, wxWindowID id = wxID_ANY,
 428                 const wxPoint& pos = wxDefaultPosition,
 429                 const wxSize& size = wxDefaultSize,
 430                 long style = wxPG_DEFAULT_STYLE,
 431                 const wxChar* name = wxPropertyGridNameStr );
 432
 433     /**
 434         Call when editor widget's contents is modified. For example, this is
 435         called when changes text in wxTextCtrl (used in wxStringProperty and
 436         wxIntProperty).
 437
 438         @remarks This function should only be called by custom properties.
 439
 440         @see wxPGProperty::OnEvent()
 441     */
 442     void EditorsValueWasModified();
 443
 444     /**
 445         Reverse of EditorsValueWasModified().
 446
 447         @remarks This function should only be called by custom properties.
 448     */
 449     void EditorsValueWasNotModified();
 450
 451     /**
 452         Enables or disables (shows/hides) categories according to parameter
 453         enable.
 454     */
 455     bool EnableCategories( bool enable );
 456
 457     /**
 458         Scrolls and/or expands items to ensure that the given item is visible.
 459
 460         @return Returns @true if something was actually done.
 461     */
 462     bool EnsureVisible( wxPGPropArg id );
 463
 464     /**
 465         Reduces column sizes to minimum possible, while still retaining
 466         fully visible grid contents (labels, images).
 467
 468         @return Minimum size for the grid to still display everything.
 469
 470         @remarks Does not work well with wxPG_SPLITTER_AUTO_CENTER window style.
 471
 472                 This function only works properly if grid size prior to call was
 473                 already fairly large.
 474
 475                 Note that you can also get calculated column widths by calling
 476                 GetState->GetColumnWidth() immediately after this function
 477                 returns.
 478     */
 479     wxSize FitColumns();
 480
 481     /**
 482         Returns wxWindow that the properties are painted on, and which should be
 483         used as the parent for editor controls.
 484     */
 485     wxPanel* GetPanel() const;
 486
 487     /**
 488         Returns current category caption background colour.
 489     */
 490     wxColour GetCaptionBackgroundColour() const;
 491
 492     /**
 493         Returns current category caption font.
 494     */
 495     wxFont& GetCaptionFont();
 496
 497     /**
 498         Returns current category caption text colour.
 499     */
 500     wxColour GetCaptionForegroundColour() const;
 501
 502     /**
 503         Returns current cell background colour.
 504     */
 505     wxColour GetCellBackgroundColour() const;
 506
 507     /**
 508         Returns current cell text colour when disabled.
 509     */
 510     wxColour GetCellDisabledTextColour() const;
 511
 512     /**
 513         Returns current cell text colour.
 514     */
 515     wxColour GetCellTextColour() const;
 516
 517     /**
 518         Returns number of columns currently on grid.
 519     */
 520     unsigned int GetColumnCount() const;
 521
 522     /**
 523         Returns colour of empty space below properties.
 524     */
 525     wxColour GetEmptySpaceColour() const;
 526
 527     /**
 528         Returns height of highest characters of used font.
 529     */
 530     int GetFontHeight() const;
 531
 532     /**
 533         Returns pointer to itself. Dummy function that enables same kind
 534         of code to use wxPropertyGrid and wxPropertyGridManager.
 535     */
 536     wxPropertyGrid* GetGrid();
 537
 538     /**
 539         Returns rectangle of custom paint image.
 540
 541         @param property
 542             Return image rectangle for this property.
 543
 544         @param item
 545             Which choice of property to use (each choice may have
 546             different image).
 547     */
 548     wxRect GetImageRect( wxPGProperty* property, int item ) const;
 549
 550     /**
 551         Returns size of the custom paint image in front of property.
 552
 553         @param property
 554             Return image rectangle for this property.
 555             If this argument is NULL, then preferred size is returned.
 556
 557         @param item
 558             Which choice of property to use (each choice may have
 559             different image).
 560     */
 561     wxSize GetImageSize( wxPGProperty* property = NULL, int item = -1 ) const;
 562
 563     /**
 564         Returns last item which could be iterated using given flags.
 565
 566         @param flags
 567             See @ref propgrid_iterator_flags.
 568     */
 569     wxPGProperty* GetLastItem( int flags = wxPG_ITERATE_DEFAULT );
 570
 571     /**
 572         Returns colour of lines between cells.
 573     */
 574     wxColour GetLineColour() const;
 575
 576     /**
 577         Returns background colour of margin.
 578     */
 579     wxColour GetMarginColour() const;
 580
 581     /**
 582         Returns most up-to-date value of selected property. This will return
 583         value different from GetSelectedProperty()->GetValue() only when text
 584         editor is activate and string edited by user represents valid,
 585         uncommitted property value.
 586     */
 587     wxVariant GetUncommittedPropertyValue();
 588
 589     /**
 590         Returns "root property". It does not have name, etc. and it is not
 591         visible. It is only useful for accessing its children.
 592     */
 593     wxPGProperty* GetRoot() const;
 594
 595     /**
 596         Returns height of a single grid row (in pixels).
 597     */
 598     int GetRowHeight() const;
 599
 600     /**
 601         Returns currently selected property.
 602     */
 603     wxPGProperty* GetSelectedProperty() const;
 604
 605     /**
 606         Returns currently selected property.
 607     */
 608     wxPGProperty* GetSelection() const;
 609
 610     /**
 611         Returns current selection background colour.
 612     */
 613     wxColour GetSelectionBackgroundColour() const;
 614
 615     /**
 616         Returns current selection text colour.
 617     */
 618     wxColour GetSelectionForegroundColour() const;
 619
 620     /**
 621         Returns current splitter x position.
 622     */
 623     int GetSplitterPosition() const;
 624
 625     /**
 626         Returns wxTextCtrl active in currently selected property, if any. Takes
 627         wxOwnerDrawnComboBox into account.
 628     */
 629     wxTextCtrl* GetEditorTextCtrl() const;
 630
 631     /**
 632         Returns current vertical spacing.
 633     */
 634     int GetVerticalSpacing() const;
 635
 636     /**
 637         Returns true if editor's value was marked modified.
 638     */
 639     bool IsEditorsValueModified() const;
 640
 641     /**
 642         Returns information about arbitrary position in the grid.
 643     */
 644     wxPropertyGridHitTestResult HitTest( const wxPoint& pt ) const;
 645
 646     /**
 647         Returns true if any property has been modified by the user.
 648     */
 649     bool IsAnyModified() const;
 650
 651     /**
 652         Returns true if updating is frozen (ie. Freeze() called but not
 653         yet Thaw() ).
 654     */
 655     bool IsFrozen() const;
 656
 657     /**
 658         When creating custom property editors, connect required editor events to
 659         this function. For instance:
 660
 661         @code
 662             control->Connect(control->GetId(), wxEVT_COMMAND_TEXT_UPDATED,
 663                             wxEventHandler(wxPropertyGrid::OnCustomEditorEvent),
 664                             NULL, propgrid);
 665         @endcode
 666
 667         @remarks You should never need to call this function directly!
 668
 669         @see wxPGEditor::CreateControls(), wxEvtHandler::Connect()
 670     */
 671     void OnCustomEditorEvent( wxEvent &event );
 672
 673     /**
 674         Redraws given property.
 675     */
 676     virtual void RefreshProperty( wxPGProperty* p );
 677
 678     /**
 679         Registers a new editor class.
 680
 681         @return Returns pointer  to the editor class instance that should be used.
 682     */
 683     static wxPGEditor* RegisterEditorClass( wxPGEditor* editor,
 684                                             const wxString& name,
 685                                             bool noDefCheck = false );
 686
 687     /**
 688         Resets all colours to the original system values.
 689     */
 690     void ResetColours();
 691
 692     /**
 693         Selects a property. Editor widget is automatically created, but
 694         not focused unless focus is true. This will generate wxEVT_PG_SELECT
 695         event.
 696
 697         @param id
 698             Property to select (name or pointer).
 699
 700         @param focus
 701             If @true, move keyboard focus to the created editor right away.
 702
 703         @return returns @true if selection finished successfully. Usually only
 704         fails if current value in editor is not valid.
 705
 706         @see wxPropertyGrid::ClearSelection()
 707     */
 708     bool SelectProperty( wxPGPropArg id, bool focus = false );
 709
 710     /**
 711         Changes keyboard shortcut to push the editor button.
 712
 713         @remarks You can set default with keycode 0. Good value for the platform
 714                 is guessed, but don't expect it to be very accurate.
 715     */
 716     void SetButtonShortcut( int keycode, bool ctrlDown = false, bool altDown = false );
 717
 718     /**
 719         Sets category caption background colour.
 720     */
 721     void SetCaptionBackgroundColour(const wxColour& col);
 722
 723     /**
 724         Sets category caption text colour.
 725     */
 726     void SetCaptionTextColour(const wxColour& col);
 727
 728     /**
 729         Sets default cell background colour - applies to property cells.
 730         Note that appearance of editor widgets may not be affected.
 731     */
 732     void SetCellBackgroundColour(const wxColour& col);
 733
 734     /**
 735         Sets cell text colour for disabled properties.
 736     */
 737     void SetCellDisabledTextColour(const wxColour& col);
 738
 739     /**
 740         Sets default cell text colour - applies to property name and value text.
 741         Note that appearance of editor widgets may not be affected.
 742     */
 743     void SetCellTextColour(const wxColour& col);
 744
 745     /**
 746         Set number of columns (2 or more).
 747     */
 748     void SetColumnCount( int colCount );
 749
 750     /**
 751         Sets the 'current' category - Append will add non-category properties
 752         under it.
 753     */
 754     void SetCurrentCategory( wxPGPropArg id );
 755
 756     /**
 757         Sets colour of empty space below properties.
 758     */
 759     void SetEmptySpaceColour(const wxColour& col);
 760
 761     /**
 762         Sets colour of lines between cells.
 763     */
 764     void SetLineColour(const wxColour& col);
 765
 766     /**
 767         Sets background colour of margin.
 768     */
 769     void SetMarginColour(const wxColour& col);
 770
 771     /**
 772         Sets selection background colour - applies to selected property name
 773         background.
 774     */
 775     void SetSelectionBackgroundColour(const wxColour& col);
 776
 777     /**
 778         Sets selection foreground colour - applies to selected property name text.
 779     */
 780     void SetSelectionTextColour(const wxColour& col);
 781
 782     /**
 783         Sets x coordinate of the splitter.
 784
 785         @remarks Splitter position cannot exceed grid size, and therefore setting
 786                 it during form creation may fail as initial grid size is often
 787                 smaller than desired splitter position, especially when sizers
 788                 are being used.
 789     */
 790     void SetSplitterPosition( int newxpos, int col = 0 );
 791
 792     /**
 793         Moves splitter as left as possible, while still allowing all
 794         labels to be shown in full.
 795
 796         @param privateChildrenToo
 797             If @false, will still allow private children to be cropped.
 798     */
 799     void SetSplitterLeft( bool privateChildrenToo = false );
 800
 801     /**
 802         Sets vertical spacing. Can be 1, 2, or 3 - a value relative to font
 803         height. Value of 2 should be default on most platforms.
 804     */
 805     void SetVerticalSpacing( int vspacing );
 806
 807     /**
 808         Shows an brief error message that is related to a property.
 809     */
 810     void ShowPropertyError( wxPGPropArg id, const wxString& msg );
 811
 812     /**
 813         Sorts all items at all levels (except private children).
 814     */
 815     void Sort();
 816
 817     /**
 818         Sorts children of a property.
 819     */
 820     void SortChildren( wxPGPropArg id );
 821 };
 822
 823
 824 /**
 825     @class wxPropertyGridEvent
 826
 827     A property grid event holds information about events associated with
 828     wxPropertyGrid objects.
 829
 830     @library{wxpropgrid}
 831     @category{propgrid}
 832 */
 833 class wxPropertyGridEvent : public wxCommandEvent
 834 {
 835 public:
 836
 837     /** Constructor. */
 838     wxPropertyGridEvent(wxEventType commandType=0, int id=0);
 839
 840     /** Copy constructor. */
 841     wxPropertyGridEvent(const wxPropertyGridEvent& event);
 842
 843     /** Destructor. */
 844     ~wxPropertyGridEvent();
 845
 846     /**
 847         Returns true if you can veto the action that the event is signaling.
 848     */
 849     bool CanVeto() const;
 850
 851     /** Copyer. */
 852     virtual wxEvent* Clone() const;
 853
 854     /**
 855         Returns highest level non-category, non-root parent of property for
 856         which event occurred. Useful when you have nested properties with
 857         children.
 858
 859         @remarks If immediate parent is root or category, this will return the
 860                 property itself.
 861     */
 862     wxPGProperty* GetMainParent() const;
 863
 864     /**
 865         Returns property associated with this event.
 866     */
 867     wxPGProperty* GetProperty() const;
 868
 869     /**
 870         Returns current validation failure flags.
 871     */
 872     wxPGVFBFlags GetValidationFailureBehavior() const;
 873
 874     /**
 875         Returns value that is about to be set for wxEVT_PG_CHANGING.
 876     */
 877     const wxVariant& GetValue() const;
 878
 879     /**
 880         Set if event can be vetoed.
 881     */
 882     void SetCanVeto( bool canVeto );
 883
 884     /** Changes the property associated with this event. */
 885     void SetProperty( wxPGProperty* p );
 886
 887     /**
 888         Set override validation failure behavior. Only effective if Veto() was
 889         also called, and only allowed if event type is wxEVT_PG_CHANGING.
 890     */
 891     void SetValidationFailureBehavior( wxPGVFBFlags flags );
 892
 893     /**
 894         Sets custom failure message for this time only. Only applies if
 895         wxPG_VFB_SHOW_MESSAGE is set in validation failure flags.
 896     */
 897     void SetValidationFailureMessage( const wxString& message );
 898
 899     /**
 900         Call this from your event handler to veto action that the event is
 901         signaling. You can only veto a shutdown if wxPropertyGridEvent::CanVeto()
 902         returns true.
 903
 904         @remarks Currently only wxEVT_PG_CHANGING supports vetoing.
 905     */
 906     void Veto( bool veto = true );
 907
 908     /**
 909         Returns @true if event was vetoed.
 910     */
 911     bool WasVetoed() const;
 912 };