docs/latex/wx/dataviewctrl.tex

   1 \section{\class{wxDataViewCtrl}}\label{wxdataviewctrl}
   2
   3 wxDataViewCtrl is a control to display data either
   4 in a tree like fashion or in a tabular form or both.
   5 If you only need to display a simple tree structure
   6 with an API more like the older wxTreeCtrl class,
   7 then the specialized \helpref{wxDataViewTreeCtrl}{wxdataviewtreectrl}
   8 can be used.
   9
  10 A \helpref{wxDataViewItem}{wxdataviewitem} is used
  11 to represent a (visible) item in the control.
  12
  13 Unlike \helpref{wxListCtrl}{wxlistctrl} wxDataViewCtrl doesn't
  14 get its data from the user through virtual functions or by
  15 setting it directly. Instead you need to write your own
  16 \helpref{wxDataViewModel}{wxdataviewmodel} and associate
  17 it with this control. Then you need to add a number of
  18 \helpref{wxDataViewColumn}{wxdataviewcolumn} to this control to
  19 define what each column shall display. Each wxDataViewColumn
  20 in turn owns 1 instance of a
  21 \helpref{wxDataViewRenderer}{wxdataviewrenderer} to render its
  22 cells. A number of standard renderers for rendering text, dates,
  23 images, toggle, a progress bar etc. are provided. Additionally,
  24 the user can write custom renderes deriving from
  25 \helpref{wxDataViewCustomRenderer}{wxdataviewcustomrenderer}
  26 for displaying anything.
  27
  28 All data transfer from the control to the model and the user
  29 code is done through \helpref{wxVariant}{wxvariant} which can
  30 be extended to support more data formats as necessary.
  31 Accordingly, all type information uses the strings returned
  32 from \helpref{wxVariant::GetType}{wxvariantgettype}.
  33
  34 \wxheading{Window styles}
  35
  36 \twocolwidtha{5cm}
  37 \begin{twocollist}\itemsep=0pt
  38 \twocolitem{\windowstyle{wxDV\_SINGLE}}{Single selection mode. This is the default.}
  39 \twocolitem{\windowstyle{wxDV\_MULTIPLE}}{Multiple selection mode.}
  40 \twocolitem{\windowstyle{wxDV\_ROW\_LINES}}{Use alternating colours for rows if supported by platform and theme.}
  41 \twocolitem{\windowstyle{wxDV\_HORIZ\_RULES}}{Display fine rules between row if supported.}
  42 \twocolitem{\windowstyle{wxDV\_VERT\_RULES}}{Display fine rules between columns is supported.}
  43 \end{twocollist}
  44
  45
  46 \wxheading{Event handling}
  47
  48 To process input from a dataview control, use the following event handler
  49 macros to direct input to member functions that take a
  50 \helpref{wxDataViewEvent}{wxdataviewevent} argument.
  51
  52 \twocolwidtha{7cm}
  53 \begin{twocollist}\itemsep=0pt
  54
  55 \twocolitem{{\bf EVT\_DATAVIEW\_SELECTION\_CHANGED(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_SELECTION\_CHANGED event.}
  56 \twocolitem{{\bf EVT\_DATAVIEW\_ITEM\_ACTIVATED(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_ITEM\_ACTIVATED event.}
  57 \twocolitem{{\bf EVT\_DATAVIEW\_ITEM\_EDITING\_STARTED(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_ITEM\_EDITING\_STARTED event.}
  58 \twocolitem{{\bf EVT\_DATAVIEW\_ITEM\_EDITING\_DONE(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_ITEM\_EDITING\_DONE event.}
  59 \twocolitem{{\bf EVT\_DATAVIEW\_ITEM\_COLLAPSING(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_ITEM\_COLLAPSING event.}
  60 \twocolitem{{\bf EVT\_DATAVIEW\_ITEM\_COLLAPSED(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_ITEM\_COLLAPSED event.}
  61 \twocolitem{{\bf EVT\_DATAVIEW\_ITEM\_EXPANDING(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_ITEM\_EXPANDING event.}
  62 \twocolitem{{\bf EVT\_DATAVIEW\_ITEM\_EXPANDED(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_ITEM\_EXPANDED event.}
  63 \twocolitem{{\bf EVT\_DATAVIEW\_ITEM\_VALUE\_CHANGED(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_ITEM\_VALUE\_CHANGED event.}
  64 \twocolitem{{\bf EVT\_DATAVIEW\_COLUMN\_HEADER\_CLICK(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_COLUMN\_HEADER\_CLICKED event.}
  65 \twocolitem{{\bf EVT\_DATAVIEW\_COLUMN\_HEADER\_RIGHT\_CLICK(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_COLUMN\_HEADER\_RIGHT\_CLICKED event.}
  66 \twocolitem{{\bf EVT\_DATAVIEW\_COLUMN\_HEADER\_SORTED(id, func)}}{Processes a wxEVT\_COMMAND\_DATAVIEW\_COLUMN\_HEADER\_SORTED event.}
  67
  68 \end{twocollist}
  69
  70
  71 \wxheading{Derived from}
  72
  73 \helpref{wxControl}{wxcontrol}\\
  74 \helpref{wxWindow}{wxwindow}\\
  75 \helpref{wxEvtHandler}{wxevthandler}\\
  76 \helpref{wxObject}{wxobject}
  77
  78 \wxheading{Include files}
  79
  80 <wx/dataview.h>
  81
  82 \wxheading{Library}
  83
  84 \helpref{wxAdv}{librarieslist}
  85
  86
  87 \latexignore{\rtfignore{\wxheading{Members}}}
  88
  89 \membersection{wxDataViewCtrl::wxDataViewCtrl}\label{wxdataviewctrlwxdataviewctrl}
  90
  91 \func{}{wxDataViewCtrl}{\void}
  92
  93 \func{}{wxDataViewCtrl}{\param{wxWindow* }{parent}, \param{wxWindowID }{id}, \param{const wxPoint\& }{pos = wxDefaultPosition}, \param{const wxSize\& }{size = wxDefaultSize}, \param{long }{style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator}}
  94
  95 Constructor. Calls \helpref{Create}{wxdataviewctrlcreate}.
  96
  97 \membersection{wxDataViewCtrl::\destruct{wxDataViewCtrl}}\label{wxdataviewctrldtor}
  98
  99 \func{}{\destruct{wxDataViewCtrl}}{\void}
 100
 101 Destructor.
 102
 103 \membersection{wxDataViewCtrl::AppendColumn}\label{wxdataviewctrlappendcolumn}
 104
 105 \func{virtual bool}{AppendColumn}{\param{wxDataViewColumn* }{col}}
 106
 107 Add a \helpref{wxDataViewColumn}{wxdataviewcolumn} to the control. Returns
 108 {\it true} on success.
 109
 110 Note that there is a number of short cut methods which implicitly create
 111 a \helpref{wxDataViewColumn}{wxdataviewcolumn} and a
 112 \helpref{wxDataViewRenderer}{wxdataviewrenderer} for it (see below).
 113
 114 \membersection{wxDataViewCtrl::AppendBitmapColumn}\label{wxdataviewctrlappendbitmapcolumn}
 115
 116 \func{wxDataViewColumn*}{AppendBitmapColumn}{\param{const wxString\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = -1}, \param{wxAlignment }{align = wxALIGN\_CENTER}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 117
 118 \func{wxDataViewColumn*}{AppendBitmapColumn}{\param{const wxBitmap\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = -1}, \param{wxAlignment }{align = wxALIGN\_CENTER}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 119
 120 Appends a column for rendering a bitmap. Returns the wxDataViewColumn
 121 created in the function or NULL on failure.
 122
 123 \membersection{wxDataViewCtrl::AppendDateColumn}\label{wxdataviewctrlappenddatecolumn}
 124
 125 \func{wxDataViewColumn*}{AppendDateColumn}{\param{const wxString\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_ACTIVATABLE}, \param{int }{width = -1}, \param{wxAlignment }{align = wxALIGN\_CENTER}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 126
 127 \func{wxDataViewColumn*}{AppendDateColumn}{\param{const wxBitmap\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_ACTIVATABLE}, \param{int }{width = -1}, \param{wxAlignment }{align = wxALIGN\_CENTER}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 128
 129 Appends a column for rendering a date. Returns the wxDataViewColumn
 130 created in the function or NULL on failure.
 131
 132 \membersection{wxDataViewCtrl::AppendProgressColumn}\label{wxdataviewctrlappendprogresscolumn}
 133
 134 \func{wxDataViewColumn*}{AppendProgressColumn}{\param{const wxString\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = 80}, \param{wxAlignment }{align = wxALIGN\_CENTER}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 135
 136 \func{wxDataViewColumn*}{AppendProgressColumn}{\param{const wxBitmap\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = 80}, \param{wxAlignment }{align = wxALIGN\_CENTER}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 137
 138 Appends a column for rendering a progress indicator. Returns the wxDataViewColumn
 139 created in the function or NULL on failure.
 140
 141 \membersection{wxDataViewCtrl::AppendIconTextColumn}\label{wxdataviewctrlappendicontextcolumn}
 142
 143 \func{wxDataViewColumn*}{AppendIconTextColumn}{\param{const wxString\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = -1}, \param{wxAlignment }{align = wxALIGN\_LEFT}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 144
 145 \func{wxDataViewColumn*}{AppendIconTextColumn}{\param{const wxBitmap\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = -1}, \param{wxAlignment }{align = wxALIGN\_LEFT}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 146
 147 Appends a column for rendering text with an icon. Returns the wxDataViewColumn
 148 created in the function or NULL on failure. This uses the
 149 \helpref{wxDataViewIconTextRenderer}{wxdataviewicontextrenderer}.
 150
 151 \membersection{wxDataViewCtrl::AppendTextColumn}\label{wxdataviewctrlappendtextcolumn}
 152
 153 \func{wxDataViewColumn*}{AppendTextColumn}{\param{const wxString\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = -1}, \param{wxAlignment }{align = wxALIGN\_LEFT}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 154
 155 \func{wxDataViewColumn*}{AppendTextColumn}{\param{const wxBitmap\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = -1}, \param{wxAlignment }{align = wxALIGN\_LEFT}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 156
 157 Appends a column for rendering text. Returns the wxDataViewColumn
 158 created in the function or NULL on failure.
 159
 160 \membersection{wxDataViewCtrl::AppendToggleColumn}\label{wxdataviewctrlappendtogglecolumn}
 161
 162 \func{wxDataViewColumn*}{AppendToggleColumn}{\param{const wxString\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = 30}, \param{wxAlignment }{align = wxALIGN\_CENTER}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 163
 164 \func{wxDataViewColumn*}{AppendToggleColumn}{\param{const wxBitmap\& }{label}, \param{unsigned int }{model\_column}, \param{wxDataViewCellMode }{mode = wxDATAVIEW\_CELL\_INERT}, \param{int }{width = 30}, \param{wxAlignment }{align = wxALIGN\_CENTER}, \param{int }{flags = wxDATAVIEW\_COL\_RESIZABLE}}
 165
 166 Appends a column for rendering a toggle. Returns the wxDataViewColumn
 167 created in the function or NULL on failure.
 168
 169 \membersection{wxDataViewCtrl::AssociateModel}\label{wxdataviewctrlassociatemodel}
 170
 171 \func{virtual bool}{AssociateModel}{\param{wxDataViewModel* }{model}}
 172
 173 Associates a \helpref{wxDataViewModel}{wxdataviewmodel} with the
 174 control. This increases the reference count of the model by 1.
 175
 176 \membersection{wxDataViewCtrl::Create}\label{wxdataviewctrlcreate}
 177
 178 \func{bool}{Create}{\param{wxWindow* }{parent}, \param{wxWindowID }{id}, \param{const wxPoint\& }{pos = wxDefaultPosition}, \param{const wxSize\& }{size = wxDefaultSize}, \param{long }{style = 0}, \param{const wxValidator\& }{validator = wxDefaultValidator}}
 179
 180 Create the control. Useful for two step creation.
 181
 182 \membersection{wxDataViewCtrl::ClearColumns}\label{wxdataviewctrlclearcolumns}
 183
 184 \func{virtual bool}{ClearColumns}{\void}
 185
 186 Removes all columns.
 187
 188 \membersection{wxDataViewCtrl::ClearSelection}\label{wxdataviewctrlclearselection}
 189
 190 \func{void}{ClearSelection}{\void}
 191
 192 Unselects all rows.
 193
 194 \membersection{wxDataViewCtrl::Collapse}\label{wxdataviewctrlcollapse}
 195
 196 \func{void}{Collapse}{\param{const wxDataViewItem \& }{item}}
 197
 198 Collapses the item.
 199
 200 \membersection{wxDataViewCtrl::DeleteColumn}\label{wxdataviewctrldeletecolumn}
 201
 202 \func{virtual bool}{DeleteColumn}{\param{const wxDataViewColumn* }{column}}
 203
 204 Deletes given column.
 205
 206 \membersection{wxDataViewCtrl::Expand}\label{wxdataviewctrlexpand}
 207
 208 \func{void}{Expand}{\param{const wxDataViewItem \& }{item}}
 209
 210 Expands the item.
 211
 212 \membersection{wxDataViewCtrl::GetColumn}\label{wxdataviewctrlgetcolumn}
 213
 214 \constfunc{virtual wxDataViewColumn*}{GetColumn}{\param{unsigned int }{pos}}
 215
 216 Returns pointer to the column. {\it pos} refers to the
 217 position in the control which may change after reordering
 218 columns by the user.
 219
 220 \membersection{wxDataViewCtrl::GetColumnCount}\label{wxdataviewctrlgetcolumncount}
 221
 222 \constfunc{virtual unsigned int}{GetColumnCount}{\void}
 223
 224 Returns the number of columns.
 225
 226 \membersection{wxDataViewCtrl::GetColumnPosition}\label{wxdataviewctrlgetcolumnposition}
 227
 228 \constfunc{virtual int}{GetColumnPosition}{\param{const wxDataViewColumn* }{column}}
 229
 230 Returns the position of the column or -1 if not found in the control.
 231
 232 \membersection{wxDataViewCtrl::EnsureVisible}\label{wxdataviewctrlensurevisible}
 233
 234 \func{void}{EnsureVisible}{\param{const wxDataViewItem \& }{item}, \param{const wxDataViewColumn* }{column = NULL}}
 235
 236 Call this to ensure that the given item is visible.
 237
 238 \membersection{wxDataViewCtrl::GetExpanderColumn}\label{wxdataviewctrlgetexpandercolumn}
 239
 240 \constfunc{wxDataViewColumn *}{GetExpanderColumn}{\void}
 241
 242 Returns column containing the expanders.
 243
 244 \membersection{wxDataViewCtrl::GetIndent}\label{wxdataviewctrlgetindent}
 245
 246 \constfunc{int}{GetIndent}{\void}
 247
 248 Returns indentation.
 249
 250 \membersection{wxDataViewCtrl::GetItemRect}\label{wxdataviewctrlgetitemrect}
 251
 252 \constfunc{wxRect}{GetItemRect}{\param{const wxDataViewItem\& }{item}, \param{const wxDataViewColumn *}{col = NULL}}
 253
 254 Returns item rect.
 255
 256 \membersection{wxDataViewCtrl::GetModel}\label{wxdataviewctrlgetmodel}
 257
 258 \constfunc{virtual wxDataViewModel*}{GetModel}{\void}
 259
 260 Returns pointer to the data model associated with the
 261 control (if any).
 262
 263 \membersection{wxDataViewCtrl::GetSelection}\label{wxdataviewctrlgetselection}
 264
 265 \constfunc{wxDataViewItem}{GetSelection}{\void}
 266
 267 Returns first selected item or an invalid item if none is selected.
 268
 269 \membersection{wxDataViewCtrl::GetSelections}\label{wxdataviewctrlgetselections}
 270
 271 \constfunc{int}{GetSelections}{\param{wxDataViewItemArray \& }{sel}}
 272
 273 Fills {\it sel} with currently selected items and returns
 274 their number.
 275
 276 \membersection{wxDataViewCtrl::GetSortingColumn}\label{wxdataviewctrlgetsortingcolumn}
 277
 278 \constfunc{virtual wxDataViewColumn*}{GetSortingColumn}{\void}
 279
 280 Returns the wxDataViewColumn currently responsible for sorting
 281 or NULL if none has been selected.
 282
 283 \membersection{wxDataViewCtrl::HitTest}\label{wxdataviewctrlhittest}
 284
 285 \constfunc{void}{HitTest}{\param{const wxPoint\& }{point}, \param{wxDataViewItem\& }{item}, \param{wxDataViewColumn *\&}{col}}
 286
 287 Hittest.
 288
 289 \membersection{wxDataViewCtrl::IsSelected}\label{wxdataviewctrlisselected}
 290
 291 \constfunc{bool}{IsSelected}{\param{const wxDataViewItem \& }{item}}
 292
 293 Return true if the item is selected.
 294
 295 \membersection{wxDataViewCtrl::Select}\label{wxdataviewctrlselect}
 296
 297 \func{void}{Select}{\param{const wxDataViewItem \& }{item}}
 298
 299 Select the given item.
 300
 301 \membersection{wxDataViewCtrl::SelectAll}\label{wxdataviewctrlselectall}
 302
 303 \func{void}{SelectAll}{\void}
 304
 305 Select all items.
 306
 307 \membersection{wxDataViewCtrl::SetExpanderColumn}\label{wxdataviewctrlsetexpandercolumn}
 308
 309 \func{void}{SetExpanderColumn}{\param{wxDataViewColumn *}{col}}
 310
 311 Set which column shall contain the tree-like expanders.
 312
 313 \membersection{wxDataViewCtrl::SetIndent}\label{wxdataviewctrlsetindent}
 314
 315 \func{void}{SetIndent}{\param{int }{indent}}
 316
 317 Sets the indendation.
 318
 319 \membersection{wxDataViewCtrl::SetSelections}\label{wxdataviewctrlsetselections}
 320
 321 \func{void}{SetSelections}{\param{const wxDataViewItemArray \& }{sel}}
 322
 323 Sets the selection to the array of wxDataViewItems.
 324
 325 \membersection{wxDataViewCtrl::Unselect}\label{wxdataviewctrlunselect}
 326
 327 \func{void}{Unselect}{\param{const wxDataViewItem \& }{item}}
 328
 329 Unselect the given item.
 330
 331 \membersection{wxDataViewCtrl::UnselectAll}\label{wxdataviewctrlunselectall}
 332
 333 \func{void}{UnselectAll}{\void}
 334
 335 Unselect all item. This method only has effect if multiple
 336 selections are allowed.
 337