| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: univ/radiobox.cpp |
| 3 | // Purpose: wxRadioBox implementation |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 11.09.00 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com) |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #ifdef __GNUG__ |
| 21 | #pragma implementation "univradiobox.h" |
| 22 | #endif |
| 23 | |
| 24 | #include "wx/wxprec.h" |
| 25 | |
| 26 | #ifdef __BORLANDC__ |
| 27 | #pragma hdrstop |
| 28 | #endif |
| 29 | |
| 30 | #if wxUSE_RADIOBOX |
| 31 | |
| 32 | #ifndef WX_PRECOMP |
| 33 | #include "wx/dcclient.h" |
| 34 | #include "wx/radiobox.h" |
| 35 | #include "wx/radiobut.h" |
| 36 | #include "wx/validate.h" |
| 37 | #endif |
| 38 | |
| 39 | #include "wx/univ/theme.h" |
| 40 | #include "wx/univ/renderer.h" |
| 41 | #include "wx/univ/inphand.h" |
| 42 | #include "wx/univ/colschem.h" |
| 43 | |
| 44 | // ---------------------------------------------------------------------------- |
| 45 | // constants |
| 46 | // ---------------------------------------------------------------------------- |
| 47 | |
| 48 | static const int BUTTON_BORDER_X = 2; |
| 49 | static const int BUTTON_BORDER_Y = 4; |
| 50 | |
| 51 | static const int BOX_BORDER_X = 2; |
| 52 | static const int BOX_BORDER_Y = 2; |
| 53 | |
| 54 | // ---------------------------------------------------------------------------- |
| 55 | // wxRadioBox event handler |
| 56 | // ---------------------------------------------------------------------------- |
| 57 | |
| 58 | class wxRadioHookHandler : public wxEvtHandler |
| 59 | { |
| 60 | public: |
| 61 | wxRadioHookHandler(wxRadioBox *radio) { m_radio = radio; } |
| 62 | |
| 63 | virtual bool ProcessEvent(wxEvent& event) |
| 64 | { |
| 65 | // we intercept the command events from radio buttons |
| 66 | if ( event.GetEventType() == wxEVT_COMMAND_RADIOBUTTON_SELECTED ) |
| 67 | { |
| 68 | m_radio->OnRadioButton(event); |
| 69 | } |
| 70 | else if ( event.GetEventType() == wxEVT_KEY_DOWN ) |
| 71 | { |
| 72 | if ( m_radio->OnKeyDown((wxKeyEvent &)event) ) |
| 73 | { |
| 74 | return TRUE; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | // just pass it on |
| 79 | return GetNextHandler()->ProcessEvent(event); |
| 80 | } |
| 81 | |
| 82 | private: |
| 83 | wxRadioBox *m_radio; |
| 84 | }; |
| 85 | |
| 86 | // ============================================================================ |
| 87 | // implementation |
| 88 | // ============================================================================ |
| 89 | |
| 90 | IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl) |
| 91 | |
| 92 | // ---------------------------------------------------------------------------- |
| 93 | // wxRadioBox creation |
| 94 | // ---------------------------------------------------------------------------- |
| 95 | |
| 96 | void wxRadioBox::Init() |
| 97 | { |
| 98 | m_selection = -1; |
| 99 | m_majorDim = 0; |
| 100 | } |
| 101 | |
| 102 | bool wxRadioBox::Create(wxWindow *parent, |
| 103 | wxWindowID id, |
| 104 | const wxString& title, |
| 105 | const wxPoint& pos, |
| 106 | const wxSize& size, |
| 107 | int n, |
| 108 | const wxString *choices, |
| 109 | int majorDim, |
| 110 | long style, |
| 111 | const wxValidator& val, |
| 112 | const wxString& name) |
| 113 | { |
| 114 | // for compatibility with the other ports which don't handle (yet?) |
| 115 | // wxRA_LEFTTORIGHT and wxRA_TOPTOBOTTOM flags, we add them ourselves if |
| 116 | // not specified |
| 117 | if ( !(style & (wxRA_LEFTTORIGHT | wxRA_TOPTOBOTTOM)) ) |
| 118 | { |
| 119 | // horizontal radiobox use left to right layout |
| 120 | if ( style & wxRA_HORIZONTAL ) |
| 121 | { |
| 122 | style |= wxRA_LEFTTORIGHT; |
| 123 | } |
| 124 | else if ( style & wxRA_VERTICAL ) |
| 125 | { |
| 126 | style |= wxRA_TOPTOBOTTOM; |
| 127 | } |
| 128 | else |
| 129 | { |
| 130 | wxFAIL_MSG( _T("you must specify wxRA_XXX style!") ); |
| 131 | |
| 132 | // use default |
| 133 | style = wxRA_HORIZONTAL | wxRA_LEFTTORIGHT; |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | if ( !wxStaticBox::Create(parent, id, title, pos, size, style, name) ) |
| 138 | return FALSE; |
| 139 | |
| 140 | #if wxUSE_VALIDATORS |
| 141 | SetValidator(val); |
| 142 | #endif // wxUSE_VALIDATORS |
| 143 | |
| 144 | Append(n, choices); |
| 145 | |
| 146 | // majorDim default value is 0 which means make one row/column |
| 147 | SetMajorDim(majorDim == 0 ? n : majorDim); |
| 148 | |
| 149 | if ( size == wxDefaultSize ) |
| 150 | { |
| 151 | SetClientSize(DoGetBestClientSize()); |
| 152 | } |
| 153 | |
| 154 | // radiobox should already have selection so select at least one item |
| 155 | SetSelection(0); |
| 156 | |
| 157 | return TRUE; |
| 158 | } |
| 159 | |
| 160 | wxRadioBox::~wxRadioBox() |
| 161 | { |
| 162 | // remove the event handlers we pushed on them from all buttons and delete |
| 163 | // the buttons themselves: this must be done as the user code expects them |
| 164 | // to disappear now and not some time later when they will be deleted by |
| 165 | // our (common) parent |
| 166 | size_t count = m_buttons.GetCount(); |
| 167 | for ( size_t n = 0; n < count; n++ ) |
| 168 | { |
| 169 | m_buttons[n]->PopEventHandler(TRUE /* delete it */); |
| 170 | |
| 171 | delete m_buttons[n]; |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | // ---------------------------------------------------------------------------- |
| 176 | // wxRadioBox init |
| 177 | // ---------------------------------------------------------------------------- |
| 178 | |
| 179 | void wxRadioBox::SetMajorDim(int majorDim) |
| 180 | { |
| 181 | wxCHECK_RET( majorDim != 0, _T("major radiobox dimension can't be 0") ); |
| 182 | |
| 183 | m_majorDim = majorDim; |
| 184 | |
| 185 | int minorDim = (GetCount() + m_majorDim - 1) / m_majorDim; |
| 186 | |
| 187 | if ( GetWindowStyle() & wxRA_SPECIFY_COLS ) |
| 188 | { |
| 189 | m_numCols = majorDim; |
| 190 | m_numRows = minorDim; |
| 191 | } |
| 192 | else // wxRA_SPECIFY_ROWS |
| 193 | { |
| 194 | m_numCols = minorDim; |
| 195 | m_numRows = majorDim; |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | void wxRadioBox::Append(int count, const wxString *choices) |
| 200 | { |
| 201 | if ( !count ) |
| 202 | return; |
| 203 | |
| 204 | wxWindow *parent = GetParent(); |
| 205 | m_buttons.Alloc(count); |
| 206 | for ( int n = 0; n < count; n++ ) |
| 207 | { |
| 208 | // make the first button in the box the start of new group by giving it |
| 209 | // wxRB_GROUP style |
| 210 | wxRadioButton *btn = new wxRadioButton(parent, -1, choices[n], |
| 211 | wxDefaultPosition, |
| 212 | wxDefaultSize, |
| 213 | n == 0 ? wxRB_GROUP : 0); |
| 214 | |
| 215 | // we want to get the events from the buttons to translate it into |
| 216 | btn->PushEventHandler(new wxRadioHookHandler(this)); |
| 217 | m_buttons.Add(btn); |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | // ---------------------------------------------------------------------------- |
| 222 | // selection |
| 223 | // ---------------------------------------------------------------------------- |
| 224 | |
| 225 | void wxRadioBox::SetSelection(int n) |
| 226 | { |
| 227 | wxCHECK_RET( IsValid(n), _T("invalid index in wxRadioBox::SetSelection") ); |
| 228 | |
| 229 | m_selection = n; |
| 230 | |
| 231 | wxRadioButton *btn = m_buttons[n]; |
| 232 | |
| 233 | // the selected button is always focused in the radiobox |
| 234 | btn->SetFocus(); |
| 235 | |
| 236 | // this will also unselect the previously selected button in our group |
| 237 | btn->SetValue(TRUE); |
| 238 | } |
| 239 | |
| 240 | int wxRadioBox::GetSelection() const |
| 241 | { |
| 242 | return m_selection; |
| 243 | } |
| 244 | |
| 245 | void wxRadioBox::SendRadioEvent() |
| 246 | { |
| 247 | wxCHECK_RET( m_selection != -1, _T("no active radio button") ); |
| 248 | |
| 249 | wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, GetId()); |
| 250 | InitCommandEvent(event); |
| 251 | event.SetInt(m_selection); |
| 252 | event.SetString(GetString(m_selection)); |
| 253 | |
| 254 | Command(event); |
| 255 | } |
| 256 | |
| 257 | void wxRadioBox::OnRadioButton(wxEvent& event) |
| 258 | { |
| 259 | int n = m_buttons.Index((wxRadioButton *)event.GetEventObject()); |
| 260 | wxCHECK_RET( n != wxNOT_FOUND, _T("click from alien radio button") ); |
| 261 | |
| 262 | m_selection = n; |
| 263 | |
| 264 | SendRadioEvent(); |
| 265 | } |
| 266 | |
| 267 | // ---------------------------------------------------------------------------- |
| 268 | // methods forwarded to the buttons |
| 269 | // ---------------------------------------------------------------------------- |
| 270 | |
| 271 | wxString wxRadioBox::GetString(int n) const |
| 272 | { |
| 273 | wxCHECK_MSG( IsValid(n), _T(""), |
| 274 | _T("invalid index in wxRadioBox::GetString") ); |
| 275 | |
| 276 | return m_buttons[n]->GetLabel(); |
| 277 | } |
| 278 | |
| 279 | void wxRadioBox::SetString(int n, const wxString& label) |
| 280 | { |
| 281 | wxCHECK_RET( IsValid(n), _T("invalid index in wxRadioBox::SetString") ); |
| 282 | |
| 283 | m_buttons[n]->SetLabel(label); |
| 284 | } |
| 285 | |
| 286 | void wxRadioBox::Enable(int n, bool enable) |
| 287 | { |
| 288 | wxCHECK_RET( IsValid(n), _T("invalid index in wxRadioBox::Enable") ); |
| 289 | |
| 290 | m_buttons[n]->Enable(enable); |
| 291 | } |
| 292 | |
| 293 | void wxRadioBox::Show(int n, bool show) |
| 294 | { |
| 295 | wxCHECK_RET( IsValid(n), _T("invalid index in wxRadioBox::Show") ); |
| 296 | |
| 297 | m_buttons[n]->Show(show); |
| 298 | } |
| 299 | |
| 300 | // ---------------------------------------------------------------------------- |
| 301 | // methods forwarded to the static box |
| 302 | // ---------------------------------------------------------------------------- |
| 303 | |
| 304 | bool wxRadioBox::Enable(bool enable) |
| 305 | { |
| 306 | return wxStaticBox::Enable(enable); |
| 307 | } |
| 308 | |
| 309 | bool wxRadioBox::Show(bool show) |
| 310 | { |
| 311 | return wxStaticBox::Show(show); |
| 312 | } |
| 313 | |
| 314 | wxString wxRadioBox::GetLabel() const |
| 315 | { |
| 316 | return wxStaticBox::GetLabel(); |
| 317 | } |
| 318 | |
| 319 | void wxRadioBox::SetLabel(const wxString& label) |
| 320 | { |
| 321 | wxStaticBox::SetLabel(label); |
| 322 | } |
| 323 | |
| 324 | // ---------------------------------------------------------------------------- |
| 325 | // buttons positioning |
| 326 | // ---------------------------------------------------------------------------- |
| 327 | |
| 328 | wxSize wxRadioBox::GetMaxButtonSize() const |
| 329 | { |
| 330 | int widthMax, heightMax, width, height; |
| 331 | widthMax = heightMax = 0; |
| 332 | |
| 333 | int count = GetCount(); |
| 334 | for ( int n = 0; n < count; n++ ) |
| 335 | { |
| 336 | m_buttons[n]->GetBestSize(&width, &height); |
| 337 | |
| 338 | if ( width > widthMax ) |
| 339 | widthMax = width; |
| 340 | if ( height > heightMax ) |
| 341 | heightMax = height; |
| 342 | } |
| 343 | |
| 344 | return wxSize(widthMax + BUTTON_BORDER_X, heightMax + BUTTON_BORDER_Y); |
| 345 | } |
| 346 | |
| 347 | wxSize wxRadioBox::DoGetBestClientSize() const |
| 348 | { |
| 349 | wxSize sizeBtn = GetMaxButtonSize(); |
| 350 | |
| 351 | sizeBtn.x *= m_numCols; |
| 352 | sizeBtn.y *= m_numRows; |
| 353 | |
| 354 | // add a border around all buttons |
| 355 | sizeBtn.x += 2*BOX_BORDER_X; |
| 356 | sizeBtn.y += 2*BOX_BORDER_Y; |
| 357 | |
| 358 | // account for the area taken by static box |
| 359 | wxRect rect = GetBorderGeometry(); |
| 360 | sizeBtn.x += rect.x + rect.width; |
| 361 | sizeBtn.y += rect.y + rect.height; |
| 362 | |
| 363 | return sizeBtn; |
| 364 | } |
| 365 | |
| 366 | void wxRadioBox::DoMoveWindow(int x0, int y0, int width, int height) |
| 367 | { |
| 368 | wxStaticBox::DoMoveWindow(x0, y0, width, height); |
| 369 | |
| 370 | wxSize sizeBtn = GetMaxButtonSize(); |
| 371 | wxPoint ptOrigin = GetBoxAreaOrigin(); |
| 372 | |
| 373 | x0 += ptOrigin.x + BOX_BORDER_X; |
| 374 | y0 += ptOrigin.y + BOX_BORDER_Y; |
| 375 | |
| 376 | int x = x0, |
| 377 | y = y0; |
| 378 | |
| 379 | int count = GetCount(); |
| 380 | for ( int n = 0; n < count; n++ ) |
| 381 | { |
| 382 | m_buttons[n]->SetSize(x, y, sizeBtn.x, sizeBtn.y); |
| 383 | |
| 384 | if ( GetWindowStyle() & wxRA_TOPTOBOTTOM ) |
| 385 | { |
| 386 | // from top to bottom |
| 387 | if ( (n + 1) % m_numRows ) |
| 388 | { |
| 389 | // continue in this column |
| 390 | y += sizeBtn.y; |
| 391 | } |
| 392 | else |
| 393 | { |
| 394 | // start a new column |
| 395 | x += sizeBtn.x; |
| 396 | y = y0; |
| 397 | } |
| 398 | } |
| 399 | else // wxRA_LEFTTORIGHT: mirror the code above |
| 400 | { |
| 401 | // from left to right |
| 402 | if ( (n + 1) % m_numCols ) |
| 403 | { |
| 404 | // continue in this row |
| 405 | x += sizeBtn.x; |
| 406 | } |
| 407 | else |
| 408 | { |
| 409 | // start a new row |
| 410 | y += sizeBtn.y; |
| 411 | x = x0; |
| 412 | } |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | // ---------------------------------------------------------------------------- |
| 418 | // keyboard navigation |
| 419 | // ---------------------------------------------------------------------------- |
| 420 | |
| 421 | bool wxRadioBox::OnKeyDown(wxKeyEvent& event) |
| 422 | { |
| 423 | wxDirection dir; |
| 424 | switch ( event.GetKeyCode() ) |
| 425 | { |
| 426 | case WXK_UP: |
| 427 | dir = wxUP; |
| 428 | break; |
| 429 | |
| 430 | case WXK_LEFT: |
| 431 | dir = wxLEFT; |
| 432 | break; |
| 433 | |
| 434 | case WXK_DOWN: |
| 435 | dir = wxDOWN; |
| 436 | break; |
| 437 | |
| 438 | case WXK_RIGHT: |
| 439 | dir = wxRIGHT; |
| 440 | break; |
| 441 | |
| 442 | default: |
| 443 | return FALSE; |
| 444 | } |
| 445 | |
| 446 | int selOld = GetSelection(); |
| 447 | int selNew = GetNextItem(selOld, dir, GetWindowStyle()); |
| 448 | if ( selNew != selOld ) |
| 449 | { |
| 450 | SetSelection(selNew); |
| 451 | |
| 452 | // emulate the button click |
| 453 | SendRadioEvent(); |
| 454 | } |
| 455 | |
| 456 | return TRUE; |
| 457 | } |
| 458 | |
| 459 | #endif // wxUSE_RADIOBOX |
| 460 | |