| 1 | /////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: generic/gridctrl.cpp |
| 3 | // Purpose: wxGrid controls |
| 4 | // Author: Paul Gammans, Roger Gammans |
| 5 | // Modified by: |
| 6 | // Created: 11/04/2001 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) The Computer Surgery (paul@compsurg.co.uk) |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #include "wx/wxprec.h" |
| 13 | |
| 14 | #ifdef __BORLANDC__ |
| 15 | #pragma hdrstop |
| 16 | #endif |
| 17 | |
| 18 | #if wxUSE_GRID |
| 19 | |
| 20 | #include "wx/generic/gridctrl.h" |
| 21 | |
| 22 | #ifndef WX_PRECOMP |
| 23 | #include "wx/textctrl.h" |
| 24 | #include "wx/dc.h" |
| 25 | #include "wx/combobox.h" |
| 26 | #endif // WX_PRECOMP |
| 27 | |
| 28 | #include "wx/tokenzr.h" |
| 29 | |
| 30 | // ---------------------------------------------------------------------------- |
| 31 | // wxGridCellDateTimeRenderer |
| 32 | // ---------------------------------------------------------------------------- |
| 33 | |
| 34 | #if wxUSE_DATETIME |
| 35 | |
| 36 | // Enables a grid cell to display a formatted date and or time |
| 37 | |
| 38 | wxGridCellDateTimeRenderer::wxGridCellDateTimeRenderer(const wxString& outformat, const wxString& informat) |
| 39 | { |
| 40 | m_iformat = informat; |
| 41 | m_oformat = outformat; |
| 42 | m_tz = wxDateTime::Local; |
| 43 | m_dateDef = wxDefaultDateTime; |
| 44 | } |
| 45 | |
| 46 | wxGridCellRenderer *wxGridCellDateTimeRenderer::Clone() const |
| 47 | { |
| 48 | wxGridCellDateTimeRenderer *renderer = new wxGridCellDateTimeRenderer; |
| 49 | renderer->m_iformat = m_iformat; |
| 50 | renderer->m_oformat = m_oformat; |
| 51 | renderer->m_dateDef = m_dateDef; |
| 52 | renderer->m_tz = m_tz; |
| 53 | |
| 54 | return renderer; |
| 55 | } |
| 56 | |
| 57 | wxString wxGridCellDateTimeRenderer::GetString(const wxGrid& grid, int row, int col) |
| 58 | { |
| 59 | wxGridTableBase *table = grid.GetTable(); |
| 60 | |
| 61 | bool hasDatetime = false; |
| 62 | wxDateTime val; |
| 63 | wxString text; |
| 64 | if ( table->CanGetValueAs(row, col, wxGRID_VALUE_DATETIME) ) |
| 65 | { |
| 66 | void * tempval = table->GetValueAsCustom(row, col,wxGRID_VALUE_DATETIME); |
| 67 | |
| 68 | if (tempval) |
| 69 | { |
| 70 | val = *((wxDateTime *)tempval); |
| 71 | hasDatetime = true; |
| 72 | delete (wxDateTime *)tempval; |
| 73 | } |
| 74 | |
| 75 | } |
| 76 | |
| 77 | if (!hasDatetime ) |
| 78 | { |
| 79 | text = table->GetValue(row, col); |
| 80 | const char * const end = val.ParseFormat(text, m_iformat, m_dateDef); |
| 81 | hasDatetime = end && !*end; |
| 82 | } |
| 83 | |
| 84 | if ( hasDatetime ) |
| 85 | text = val.Format(m_oformat, m_tz ); |
| 86 | |
| 87 | // If we failed to parse string just show what we where given? |
| 88 | return text; |
| 89 | } |
| 90 | |
| 91 | void wxGridCellDateTimeRenderer::Draw(wxGrid& grid, |
| 92 | wxGridCellAttr& attr, |
| 93 | wxDC& dc, |
| 94 | const wxRect& rectCell, |
| 95 | int row, int col, |
| 96 | bool isSelected) |
| 97 | { |
| 98 | wxGridCellRenderer::Draw(grid, attr, dc, rectCell, row, col, isSelected); |
| 99 | |
| 100 | SetTextColoursAndFont(grid, attr, dc, isSelected); |
| 101 | |
| 102 | // draw the text right aligned by default |
| 103 | int hAlign, vAlign; |
| 104 | attr.GetAlignment(&hAlign, &vAlign); |
| 105 | hAlign = wxRIGHT; |
| 106 | |
| 107 | wxRect rect = rectCell; |
| 108 | rect.Inflate(-1); |
| 109 | |
| 110 | grid.DrawTextRectangle(dc, GetString(grid, row, col), rect, hAlign, vAlign); |
| 111 | } |
| 112 | |
| 113 | wxSize wxGridCellDateTimeRenderer::GetBestSize(wxGrid& grid, |
| 114 | wxGridCellAttr& attr, |
| 115 | wxDC& dc, |
| 116 | int row, int col) |
| 117 | { |
| 118 | return DoGetBestSize(attr, dc, GetString(grid, row, col)); |
| 119 | } |
| 120 | |
| 121 | void wxGridCellDateTimeRenderer::SetParameters(const wxString& params) |
| 122 | { |
| 123 | if (!params.empty()) |
| 124 | m_oformat=params; |
| 125 | } |
| 126 | |
| 127 | #endif // wxUSE_DATETIME |
| 128 | |
| 129 | // ---------------------------------------------------------------------------- |
| 130 | // wxGridCellChoiceNumberRenderer |
| 131 | // ---------------------------------------------------------------------------- |
| 132 | // Renders a number as a textual equivalent. |
| 133 | // eg data in cell is 0,1,2 ... n the cell could be rendered as "John","Fred"..."Bob" |
| 134 | |
| 135 | |
| 136 | wxGridCellEnumRenderer::wxGridCellEnumRenderer(const wxString& choices) |
| 137 | { |
| 138 | if (!choices.empty()) |
| 139 | SetParameters(choices); |
| 140 | } |
| 141 | |
| 142 | wxGridCellRenderer *wxGridCellEnumRenderer::Clone() const |
| 143 | { |
| 144 | wxGridCellEnumRenderer *renderer = new wxGridCellEnumRenderer; |
| 145 | renderer->m_choices = m_choices; |
| 146 | return renderer; |
| 147 | } |
| 148 | |
| 149 | wxString wxGridCellEnumRenderer::GetString(const wxGrid& grid, int row, int col) |
| 150 | { |
| 151 | wxGridTableBase *table = grid.GetTable(); |
| 152 | wxString text; |
| 153 | if ( table->CanGetValueAs(row, col, wxGRID_VALUE_NUMBER) ) |
| 154 | { |
| 155 | int choiceno = table->GetValueAsLong(row, col); |
| 156 | text.Printf(_T("%s"), m_choices[ choiceno ].c_str() ); |
| 157 | } |
| 158 | else |
| 159 | { |
| 160 | text = table->GetValue(row, col); |
| 161 | } |
| 162 | |
| 163 | |
| 164 | //If we faild to parse string just show what we where given? |
| 165 | return text; |
| 166 | } |
| 167 | |
| 168 | void wxGridCellEnumRenderer::Draw(wxGrid& grid, |
| 169 | wxGridCellAttr& attr, |
| 170 | wxDC& dc, |
| 171 | const wxRect& rectCell, |
| 172 | int row, int col, |
| 173 | bool isSelected) |
| 174 | { |
| 175 | wxGridCellRenderer::Draw(grid, attr, dc, rectCell, row, col, isSelected); |
| 176 | |
| 177 | SetTextColoursAndFont(grid, attr, dc, isSelected); |
| 178 | |
| 179 | // draw the text right aligned by default |
| 180 | int hAlign, vAlign; |
| 181 | attr.GetAlignment(&hAlign, &vAlign); |
| 182 | hAlign = wxRIGHT; |
| 183 | |
| 184 | wxRect rect = rectCell; |
| 185 | rect.Inflate(-1); |
| 186 | |
| 187 | grid.DrawTextRectangle(dc, GetString(grid, row, col), rect, hAlign, vAlign); |
| 188 | } |
| 189 | |
| 190 | wxSize wxGridCellEnumRenderer::GetBestSize(wxGrid& grid, |
| 191 | wxGridCellAttr& attr, |
| 192 | wxDC& dc, |
| 193 | int row, int col) |
| 194 | { |
| 195 | return DoGetBestSize(attr, dc, GetString(grid, row, col)); |
| 196 | } |
| 197 | |
| 198 | void wxGridCellEnumRenderer::SetParameters(const wxString& params) |
| 199 | { |
| 200 | if ( !params ) |
| 201 | { |
| 202 | // what can we do? |
| 203 | return; |
| 204 | } |
| 205 | |
| 206 | m_choices.Empty(); |
| 207 | |
| 208 | wxStringTokenizer tk(params, _T(',')); |
| 209 | while ( tk.HasMoreTokens() ) |
| 210 | { |
| 211 | m_choices.Add(tk.GetNextToken()); |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | #if wxUSE_COMBOBOX |
| 216 | |
| 217 | // ---------------------------------------------------------------------------- |
| 218 | // wxGridCellEnumEditor |
| 219 | // ---------------------------------------------------------------------------- |
| 220 | |
| 221 | // A cell editor which displays an enum number as a textual equivalent. eg |
| 222 | // data in cell is 0,1,2 ... n the cell could be displayed as |
| 223 | // "John","Fred"..."Bob" in the combo choice box |
| 224 | |
| 225 | wxGridCellEnumEditor::wxGridCellEnumEditor(const wxString& choices) |
| 226 | :wxGridCellChoiceEditor() |
| 227 | { |
| 228 | m_startint = -1; |
| 229 | |
| 230 | if (!choices.empty()) |
| 231 | SetParameters(choices); |
| 232 | } |
| 233 | |
| 234 | wxGridCellEditor *wxGridCellEnumEditor::Clone() const |
| 235 | { |
| 236 | wxGridCellEnumEditor *editor = new wxGridCellEnumEditor(); |
| 237 | editor->m_startint = m_startint; |
| 238 | return editor; |
| 239 | } |
| 240 | |
| 241 | void wxGridCellEnumEditor::BeginEdit(int row, int col, wxGrid* grid) |
| 242 | { |
| 243 | wxASSERT_MSG(m_control, |
| 244 | wxT("The wxGridCellEnumEditor must be Created first!")); |
| 245 | |
| 246 | wxGridTableBase *table = grid->GetTable(); |
| 247 | |
| 248 | if ( table->CanGetValueAs(row, col, wxGRID_VALUE_NUMBER) ) |
| 249 | { |
| 250 | m_startint = table->GetValueAsLong(row, col); |
| 251 | } |
| 252 | else |
| 253 | { |
| 254 | wxString startValue = table->GetValue(row, col); |
| 255 | if (startValue.IsNumber() && !startValue.empty()) |
| 256 | { |
| 257 | startValue.ToLong(&m_startint); |
| 258 | } |
| 259 | else |
| 260 | { |
| 261 | m_startint=-1; |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | Combo()->SetSelection(m_startint); |
| 266 | Combo()->SetInsertionPointEnd(); |
| 267 | Combo()->SetFocus(); |
| 268 | |
| 269 | } |
| 270 | |
| 271 | bool wxGridCellEnumEditor::EndEdit(int row, int col, wxGrid* grid) |
| 272 | { |
| 273 | int pos = Combo()->GetSelection(); |
| 274 | bool changed = (pos != m_startint); |
| 275 | if (changed) |
| 276 | { |
| 277 | if (grid->GetTable()->CanSetValueAs(row, col, wxGRID_VALUE_NUMBER)) |
| 278 | grid->GetTable()->SetValueAsLong(row, col, pos); |
| 279 | else |
| 280 | grid->GetTable()->SetValue(row, col,wxString::Format(wxT("%i"),pos)); |
| 281 | } |
| 282 | |
| 283 | return changed; |
| 284 | } |
| 285 | |
| 286 | #endif // wxUSE_COMBOBOX |
| 287 | |
| 288 | // ---------------------------------------------------------------------------- |
| 289 | // wxGridCellAutoWrapStringEditor |
| 290 | // ---------------------------------------------------------------------------- |
| 291 | |
| 292 | void |
| 293 | wxGridCellAutoWrapStringEditor::Create(wxWindow* parent, |
| 294 | wxWindowID id, |
| 295 | wxEvtHandler* evtHandler) |
| 296 | { |
| 297 | wxGridCellTextEditor::DoCreate(parent, id, evtHandler, |
| 298 | wxTE_MULTILINE | wxTE_RICH); |
| 299 | } |
| 300 | |
| 301 | void |
| 302 | wxGridCellAutoWrapStringRenderer::Draw(wxGrid& grid, |
| 303 | wxGridCellAttr& attr, |
| 304 | wxDC& dc, |
| 305 | const wxRect& rectCell, |
| 306 | int row, int col, |
| 307 | bool isSelected) { |
| 308 | |
| 309 | |
| 310 | wxGridCellRenderer::Draw(grid, attr, dc, rectCell, row, col, isSelected); |
| 311 | |
| 312 | // now we only have to draw the text |
| 313 | SetTextColoursAndFont(grid, attr, dc, isSelected); |
| 314 | |
| 315 | int horizAlign, vertAlign; |
| 316 | attr.GetAlignment(&horizAlign, &vertAlign); |
| 317 | |
| 318 | wxRect rect = rectCell; |
| 319 | rect.Inflate(-1); |
| 320 | |
| 321 | grid.DrawTextRectangle(dc, GetTextLines(grid,dc,attr,rect,row,col), |
| 322 | rect, horizAlign, vertAlign); |
| 323 | } |
| 324 | |
| 325 | |
| 326 | wxArrayString |
| 327 | wxGridCellAutoWrapStringRenderer::GetTextLines(wxGrid& grid, |
| 328 | wxDC& dc, |
| 329 | const wxGridCellAttr& attr, |
| 330 | const wxRect& rect, |
| 331 | int row, int col) |
| 332 | { |
| 333 | wxString data = grid.GetCellValue(row, col); |
| 334 | |
| 335 | wxArrayString lines; |
| 336 | dc.SetFont(attr.GetFont()); |
| 337 | |
| 338 | //Taken from wxGrid again! |
| 339 | wxCoord x = 0, y = 0, curr_x = 0; |
| 340 | wxCoord max_x = rect.GetWidth(); |
| 341 | |
| 342 | dc.SetFont(attr.GetFont()); |
| 343 | wxStringTokenizer tk(data , _T(" \n\t\r")); |
| 344 | wxString thisline = wxEmptyString; |
| 345 | |
| 346 | while ( tk.HasMoreTokens() ) |
| 347 | { |
| 348 | wxString tok = tk.GetNextToken(); |
| 349 | //FIXME: this causes us to print an extra unnecesary |
| 350 | // space at the end of the line. But it |
| 351 | // is invisible , simplifies the size calculation |
| 352 | // and ensures tokens are separated in the display |
| 353 | tok += _T(" "); |
| 354 | |
| 355 | dc.GetTextExtent(tok, &x, &y); |
| 356 | if ( curr_x + x > max_x) |
| 357 | { |
| 358 | lines.Add( wxString(thisline) ); |
| 359 | thisline = tok; |
| 360 | curr_x=x; |
| 361 | } |
| 362 | else |
| 363 | { |
| 364 | thisline+= tok; |
| 365 | curr_x += x; |
| 366 | } |
| 367 | } |
| 368 | //Add last line |
| 369 | lines.Add( wxString(thisline) ); |
| 370 | |
| 371 | return lines; |
| 372 | } |
| 373 | |
| 374 | |
| 375 | wxSize |
| 376 | wxGridCellAutoWrapStringRenderer::GetBestSize(wxGrid& grid, |
| 377 | wxGridCellAttr& attr, |
| 378 | wxDC& dc, |
| 379 | int row, int col) |
| 380 | { |
| 381 | wxCoord x,y, height , width = grid.GetColSize(col) -20; |
| 382 | // for width, subtract 20 because ColSize includes a magin of 10 pixels |
| 383 | // that we do not want here and because we always start with an increment |
| 384 | // by 10 in the loop below. |
| 385 | int count = 250; //Limit iterations.. |
| 386 | |
| 387 | wxRect rect(0,0,width,10); |
| 388 | |
| 389 | // M is a nice large character 'y' gives descender!. |
| 390 | dc.GetTextExtent(wxT("My"), &x, &y); |
| 391 | |
| 392 | do |
| 393 | { |
| 394 | width+=10; |
| 395 | rect.SetWidth(width); |
| 396 | height = y * (wx_truncate_cast(wxCoord, GetTextLines(grid,dc,attr,rect,row,col).GetCount())); |
| 397 | count--; |
| 398 | // Search for a shape no taller than the golden ratio. |
| 399 | } while (count && (width < (height*1.68)) ); |
| 400 | |
| 401 | |
| 402 | return wxSize(width,height); |
| 403 | } |
| 404 | |
| 405 | #endif // wxUSE_GRID |
| 406 | |