| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/generic/wizard.cpp |
| 3 | // Purpose: generic implementation of wxWizard class |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: Robert Cavanaugh |
| 6 | // 1) Added capability for wxWizardPage to accept resources |
| 7 | // 2) Added "Help" button handler stub |
| 8 | // 3) Fixed ShowPage() bug on displaying bitmaps |
| 9 | // Robert Vazan (sizers) |
| 10 | // Created: 15.08.99 |
| 11 | // RCS-ID: $Id$ |
| 12 | // Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
| 13 | // Licence: wxWindows licence |
| 14 | /////////////////////////////////////////////////////////////////////////////// |
| 15 | |
| 16 | // ============================================================================ |
| 17 | // declarations |
| 18 | // ============================================================================ |
| 19 | |
| 20 | // ---------------------------------------------------------------------------- |
| 21 | // headers |
| 22 | // ---------------------------------------------------------------------------- |
| 23 | |
| 24 | // For compilers that support precompilation, includes "wx.h". |
| 25 | #include "wx/wxprec.h" |
| 26 | |
| 27 | #ifdef __BORLANDC__ |
| 28 | #pragma hdrstop |
| 29 | #endif |
| 30 | |
| 31 | #if wxUSE_WIZARDDLG |
| 32 | |
| 33 | #ifndef WX_PRECOMP |
| 34 | #include "wx/dynarray.h" |
| 35 | #include "wx/intl.h" |
| 36 | #include "wx/statbmp.h" |
| 37 | #include "wx/button.h" |
| 38 | #include "wx/settings.h" |
| 39 | #include "wx/sizer.h" |
| 40 | #endif //WX_PRECOMP |
| 41 | |
| 42 | #include "wx/statline.h" |
| 43 | |
| 44 | #include "wx/wizard.h" |
| 45 | |
| 46 | // ---------------------------------------------------------------------------- |
| 47 | // wxWizardSizer |
| 48 | // ---------------------------------------------------------------------------- |
| 49 | |
| 50 | class wxWizardSizer : public wxSizer |
| 51 | { |
| 52 | public: |
| 53 | wxWizardSizer(wxWizard *owner); |
| 54 | |
| 55 | virtual wxSizerItem *Insert(size_t index, wxSizerItem *item); |
| 56 | |
| 57 | virtual void RecalcSizes(); |
| 58 | virtual wxSize CalcMin(); |
| 59 | |
| 60 | // get the max size of all wizard pages |
| 61 | wxSize GetMaxChildSize(); |
| 62 | |
| 63 | // return the border which can be either set using wxWizard::SetBorder() or |
| 64 | // have default value |
| 65 | int GetBorder() const; |
| 66 | |
| 67 | // hide the pages which we temporarily "show" when they're added to this |
| 68 | // sizer (see Insert()) |
| 69 | void HidePages(); |
| 70 | |
| 71 | private: |
| 72 | wxSize SiblingSize(wxSizerItem *child); |
| 73 | |
| 74 | wxWizard *m_owner; |
| 75 | wxSize m_childSize; |
| 76 | }; |
| 77 | |
| 78 | // ---------------------------------------------------------------------------- |
| 79 | // event tables and such |
| 80 | // ---------------------------------------------------------------------------- |
| 81 | |
| 82 | DEFINE_EVENT_TYPE(wxEVT_WIZARD_PAGE_CHANGED) |
| 83 | DEFINE_EVENT_TYPE(wxEVT_WIZARD_PAGE_CHANGING) |
| 84 | DEFINE_EVENT_TYPE(wxEVT_WIZARD_CANCEL) |
| 85 | DEFINE_EVENT_TYPE(wxEVT_WIZARD_FINISHED) |
| 86 | DEFINE_EVENT_TYPE(wxEVT_WIZARD_HELP) |
| 87 | |
| 88 | BEGIN_EVENT_TABLE(wxWizard, wxDialog) |
| 89 | EVT_BUTTON(wxID_CANCEL, wxWizard::OnCancel) |
| 90 | EVT_BUTTON(wxID_BACKWARD, wxWizard::OnBackOrNext) |
| 91 | EVT_BUTTON(wxID_FORWARD, wxWizard::OnBackOrNext) |
| 92 | EVT_BUTTON(wxID_HELP, wxWizard::OnHelp) |
| 93 | |
| 94 | EVT_WIZARD_PAGE_CHANGED(wxID_ANY, wxWizard::OnWizEvent) |
| 95 | EVT_WIZARD_PAGE_CHANGING(wxID_ANY, wxWizard::OnWizEvent) |
| 96 | EVT_WIZARD_CANCEL(wxID_ANY, wxWizard::OnWizEvent) |
| 97 | EVT_WIZARD_FINISHED(wxID_ANY, wxWizard::OnWizEvent) |
| 98 | EVT_WIZARD_HELP(wxID_ANY, wxWizard::OnWizEvent) |
| 99 | END_EVENT_TABLE() |
| 100 | |
| 101 | IMPLEMENT_DYNAMIC_CLASS(wxWizard, wxDialog) |
| 102 | |
| 103 | /* |
| 104 | TODO PROPERTIES : |
| 105 | wxWizard |
| 106 | extstyle |
| 107 | title |
| 108 | */ |
| 109 | |
| 110 | IMPLEMENT_ABSTRACT_CLASS(wxWizardPage, wxPanel) |
| 111 | IMPLEMENT_DYNAMIC_CLASS(wxWizardPageSimple, wxWizardPage) |
| 112 | IMPLEMENT_DYNAMIC_CLASS(wxWizardEvent, wxNotifyEvent) |
| 113 | |
| 114 | // ============================================================================ |
| 115 | // implementation |
| 116 | // ============================================================================ |
| 117 | |
| 118 | // ---------------------------------------------------------------------------- |
| 119 | // wxWizardPage |
| 120 | // ---------------------------------------------------------------------------- |
| 121 | |
| 122 | void wxWizardPage::Init() |
| 123 | { |
| 124 | m_bitmap = wxNullBitmap; |
| 125 | } |
| 126 | |
| 127 | wxWizardPage::wxWizardPage(wxWizard *parent, |
| 128 | const wxBitmap& bitmap, |
| 129 | const wxChar *resource) |
| 130 | { |
| 131 | Create(parent, bitmap, resource); |
| 132 | } |
| 133 | |
| 134 | bool wxWizardPage::Create(wxWizard *parent, |
| 135 | const wxBitmap& bitmap, |
| 136 | const wxChar *resource) |
| 137 | { |
| 138 | if ( !wxPanel::Create(parent, wxID_ANY) ) |
| 139 | return false; |
| 140 | |
| 141 | if ( resource != NULL ) |
| 142 | { |
| 143 | #if wxUSE_WX_RESOURCES |
| 144 | #if 0 |
| 145 | if ( !LoadFromResource(this, resource) ) |
| 146 | { |
| 147 | wxFAIL_MSG(wxT("wxWizardPage LoadFromResource failed!!!!")); |
| 148 | } |
| 149 | #endif |
| 150 | #endif // wxUSE_RESOURCES |
| 151 | } |
| 152 | |
| 153 | m_bitmap = bitmap; |
| 154 | |
| 155 | // initially the page is hidden, it's shown only when it becomes current |
| 156 | Hide(); |
| 157 | |
| 158 | return true; |
| 159 | } |
| 160 | |
| 161 | // ---------------------------------------------------------------------------- |
| 162 | // wxWizardPageSimple |
| 163 | // ---------------------------------------------------------------------------- |
| 164 | |
| 165 | wxWizardPage *wxWizardPageSimple::GetPrev() const |
| 166 | { |
| 167 | return m_prev; |
| 168 | } |
| 169 | |
| 170 | wxWizardPage *wxWizardPageSimple::GetNext() const |
| 171 | { |
| 172 | return m_next; |
| 173 | } |
| 174 | |
| 175 | // ---------------------------------------------------------------------------- |
| 176 | // wxWizardSizer |
| 177 | // ---------------------------------------------------------------------------- |
| 178 | |
| 179 | wxWizardSizer::wxWizardSizer(wxWizard *owner) |
| 180 | : m_owner(owner), |
| 181 | m_childSize(wxDefaultSize) |
| 182 | { |
| 183 | } |
| 184 | |
| 185 | wxSizerItem *wxWizardSizer::Insert(size_t index, wxSizerItem *item) |
| 186 | { |
| 187 | m_owner->m_usingSizer = true; |
| 188 | |
| 189 | if ( item->IsWindow() ) |
| 190 | { |
| 191 | // we must pretend that the window is shown as otherwise it wouldn't be |
| 192 | // taken into account for the layout -- but avoid really showing it, so |
| 193 | // just set the internal flag instead of calling wxWindow::Show() |
| 194 | item->GetWindow()->wxWindowBase::Show(); |
| 195 | } |
| 196 | |
| 197 | return wxSizer::Insert(index, item); |
| 198 | } |
| 199 | |
| 200 | void wxWizardSizer::HidePages() |
| 201 | { |
| 202 | for ( wxSizerItemList::compatibility_iterator node = GetChildren().GetFirst(); |
| 203 | node; |
| 204 | node = node->GetNext() ) |
| 205 | { |
| 206 | wxSizerItem * const item = node->GetData(); |
| 207 | if ( item->IsWindow() ) |
| 208 | item->GetWindow()->wxWindowBase::Show(false); |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | void wxWizardSizer::RecalcSizes() |
| 213 | { |
| 214 | // Effect of this function depends on m_owner->m_page and |
| 215 | // it should be called whenever it changes (wxWizard::ShowPage) |
| 216 | if ( m_owner->m_page ) |
| 217 | { |
| 218 | m_owner->m_page->SetSize(wxRect(m_position, m_size)); |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | wxSize wxWizardSizer::CalcMin() |
| 223 | { |
| 224 | return m_owner->GetPageSize(); |
| 225 | } |
| 226 | |
| 227 | wxSize wxWizardSizer::GetMaxChildSize() |
| 228 | { |
| 229 | #if !defined(__WXDEBUG__) |
| 230 | if ( m_childSize.IsFullySpecified() ) |
| 231 | return m_childSize; |
| 232 | #endif |
| 233 | |
| 234 | wxSize maxOfMin; |
| 235 | |
| 236 | for ( wxSizerItemList::compatibility_iterator childNode = m_children.GetFirst(); |
| 237 | childNode; |
| 238 | childNode = childNode->GetNext() ) |
| 239 | { |
| 240 | wxSizerItem *child = childNode->GetData(); |
| 241 | maxOfMin.IncTo(child->CalcMin()); |
| 242 | maxOfMin.IncTo(SiblingSize(child)); |
| 243 | } |
| 244 | |
| 245 | #ifdef __WXDEBUG__ |
| 246 | if ( m_childSize.IsFullySpecified() && m_childSize != maxOfMin ) |
| 247 | { |
| 248 | wxFAIL_MSG( _T("Size changed in wxWizard::GetPageAreaSizer()") |
| 249 | _T("after RunWizard().\n") |
| 250 | _T("Did you forget to call GetSizer()->Fit(this) ") |
| 251 | _T("for some page?")) ; |
| 252 | |
| 253 | return m_childSize; |
| 254 | } |
| 255 | #endif // __WXDEBUG__ |
| 256 | |
| 257 | if ( m_owner->m_started ) |
| 258 | { |
| 259 | m_childSize = maxOfMin; |
| 260 | } |
| 261 | |
| 262 | return maxOfMin; |
| 263 | } |
| 264 | |
| 265 | int wxWizardSizer::GetBorder() const |
| 266 | { |
| 267 | return m_owner->m_border; |
| 268 | } |
| 269 | |
| 270 | wxSize wxWizardSizer::SiblingSize(wxSizerItem *child) |
| 271 | { |
| 272 | wxSize maxSibling; |
| 273 | |
| 274 | if ( child->IsWindow() ) |
| 275 | { |
| 276 | wxWizardPage *page = wxDynamicCast(child->GetWindow(), wxWizardPage); |
| 277 | if ( page ) |
| 278 | { |
| 279 | for ( wxWizardPage *sibling = page->GetNext(); |
| 280 | sibling; |
| 281 | sibling = sibling->GetNext() ) |
| 282 | { |
| 283 | if ( sibling->GetSizer() ) |
| 284 | { |
| 285 | maxSibling.IncTo(sibling->GetSizer()->CalcMin()); |
| 286 | } |
| 287 | } |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | return maxSibling; |
| 292 | } |
| 293 | |
| 294 | // ---------------------------------------------------------------------------- |
| 295 | // generic wxWizard implementation |
| 296 | // ---------------------------------------------------------------------------- |
| 297 | |
| 298 | void wxWizard::Init() |
| 299 | { |
| 300 | m_posWizard = wxDefaultPosition; |
| 301 | m_page = (wxWizardPage *)NULL; |
| 302 | m_btnPrev = m_btnNext = NULL; |
| 303 | m_statbmp = NULL; |
| 304 | m_sizerBmpAndPage = NULL; |
| 305 | m_sizerPage = NULL; |
| 306 | m_border = 5; |
| 307 | m_started = false; |
| 308 | m_wasModal = false; |
| 309 | m_usingSizer = false; |
| 310 | } |
| 311 | |
| 312 | bool wxWizard::Create(wxWindow *parent, |
| 313 | int id, |
| 314 | const wxString& title, |
| 315 | const wxBitmap& bitmap, |
| 316 | const wxPoint& pos, |
| 317 | long style) |
| 318 | { |
| 319 | bool result = wxDialog::Create(parent,id,title,pos,wxDefaultSize,style); |
| 320 | |
| 321 | m_posWizard = pos; |
| 322 | m_bitmap = bitmap ; |
| 323 | |
| 324 | DoCreateControls(); |
| 325 | |
| 326 | return result; |
| 327 | } |
| 328 | |
| 329 | void wxWizard::AddBitmapRow(wxBoxSizer *mainColumn) |
| 330 | { |
| 331 | m_sizerBmpAndPage = new wxBoxSizer(wxHORIZONTAL); |
| 332 | mainColumn->Add( |
| 333 | m_sizerBmpAndPage, |
| 334 | 1, // Vertically stretchable |
| 335 | wxEXPAND // Horizonal stretching, no border |
| 336 | ); |
| 337 | mainColumn->Add(0,5, |
| 338 | 0, // No vertical stretching |
| 339 | wxEXPAND // No border, (mostly useless) horizontal stretching |
| 340 | ); |
| 341 | |
| 342 | #if wxUSE_STATBMP |
| 343 | if ( m_bitmap.Ok() ) |
| 344 | { |
| 345 | m_statbmp = new wxStaticBitmap(this, wxID_ANY, m_bitmap); |
| 346 | m_sizerBmpAndPage->Add( |
| 347 | m_statbmp, |
| 348 | 0, // No horizontal stretching |
| 349 | wxALL, // Border all around, top alignment |
| 350 | 5 // Border width |
| 351 | ); |
| 352 | m_sizerBmpAndPage->Add( |
| 353 | 5,0, |
| 354 | 0, // No horizontal stretching |
| 355 | wxEXPAND // No border, (mostly useless) vertical stretching |
| 356 | ); |
| 357 | } |
| 358 | #endif |
| 359 | |
| 360 | // Added to m_sizerBmpAndPage later |
| 361 | m_sizerPage = new wxWizardSizer(this); |
| 362 | } |
| 363 | |
| 364 | void wxWizard::AddStaticLine(wxBoxSizer *mainColumn) |
| 365 | { |
| 366 | #if wxUSE_STATLINE |
| 367 | mainColumn->Add( |
| 368 | new wxStaticLine(this, wxID_ANY), |
| 369 | 0, // Vertically unstretchable |
| 370 | wxEXPAND | wxALL, // Border all around, horizontally stretchable |
| 371 | 5 // Border width |
| 372 | ); |
| 373 | mainColumn->Add(0,5, |
| 374 | 0, // No vertical stretching |
| 375 | wxEXPAND // No border, (mostly useless) horizontal stretching |
| 376 | ); |
| 377 | #else |
| 378 | (void)mainColumn; |
| 379 | #endif // wxUSE_STATLINE |
| 380 | } |
| 381 | |
| 382 | void wxWizard::AddBackNextPair(wxBoxSizer *buttonRow) |
| 383 | { |
| 384 | wxASSERT_MSG( m_btnNext && m_btnPrev, |
| 385 | _T("You must create the buttons before calling ") |
| 386 | _T("wxWizard::AddBackNextPair") ); |
| 387 | |
| 388 | // margin between Back and Next buttons |
| 389 | #ifdef __WXMAC__ |
| 390 | static const int BACKNEXT_MARGIN = 10; |
| 391 | #else |
| 392 | static const int BACKNEXT_MARGIN = 0; |
| 393 | #endif |
| 394 | |
| 395 | wxBoxSizer *backNextPair = new wxBoxSizer(wxHORIZONTAL); |
| 396 | buttonRow->Add( |
| 397 | backNextPair, |
| 398 | 0, // No horizontal stretching |
| 399 | wxALL, // Border all around |
| 400 | 5 // Border width |
| 401 | ); |
| 402 | |
| 403 | backNextPair->Add(m_btnPrev); |
| 404 | backNextPair->Add(BACKNEXT_MARGIN,0, |
| 405 | 0, // No horizontal stretching |
| 406 | wxEXPAND // No border, (mostly useless) vertical stretching |
| 407 | ); |
| 408 | backNextPair->Add(m_btnNext); |
| 409 | } |
| 410 | |
| 411 | void wxWizard::AddButtonRow(wxBoxSizer *mainColumn) |
| 412 | { |
| 413 | // the order in which the buttons are created determines the TAB order - at least under MSWindows... |
| 414 | // although the 'back' button appears before the 'next' button, a more userfriendly tab order is |
| 415 | // to activate the 'next' button first (create the next button before the back button). |
| 416 | // The reason is: The user will repeatedly enter information in the wizard pages and then wants to |
| 417 | // press 'next'. If a user uses mostly the keyboard, he would have to skip the 'back' button |
| 418 | // everytime. This is annoying. There is a second reason: RETURN acts as TAB. If the 'next' |
| 419 | // button comes first in the TAB order, the user can enter information very fast using the RETURN |
| 420 | // key to TAB to the next entry field and page. This would not be possible, if the 'back' button |
| 421 | // was created before the 'next' button. |
| 422 | |
| 423 | bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA); |
| 424 | int buttonStyle = isPda ? wxBU_EXACTFIT : 0; |
| 425 | |
| 426 | wxBoxSizer *buttonRow = new wxBoxSizer(wxHORIZONTAL); |
| 427 | #ifdef __WXMAC__ |
| 428 | if (GetExtraStyle() & wxWIZARD_EX_HELPBUTTON) |
| 429 | mainColumn->Add( |
| 430 | buttonRow, |
| 431 | 0, // Vertically unstretchable |
| 432 | wxGROW|wxALIGN_CENTRE |
| 433 | ); |
| 434 | else |
| 435 | #endif |
| 436 | mainColumn->Add( |
| 437 | buttonRow, |
| 438 | 0, // Vertically unstretchable |
| 439 | wxALIGN_RIGHT // Right aligned, no border |
| 440 | ); |
| 441 | |
| 442 | // Desired TAB order is 'next', 'cancel', 'help', 'back'. This makes the 'back' button the last control on the page. |
| 443 | // Create the buttons in the right order... |
| 444 | wxButton *btnHelp=0; |
| 445 | #ifdef __WXMAC__ |
| 446 | if (GetExtraStyle() & wxWIZARD_EX_HELPBUTTON) |
| 447 | btnHelp=new wxButton(this, wxID_HELP, _("&Help"), wxDefaultPosition, wxDefaultSize, buttonStyle); |
| 448 | #endif |
| 449 | |
| 450 | m_btnNext = new wxButton(this, wxID_FORWARD, _("&Next >")); |
| 451 | wxButton *btnCancel=new wxButton(this, wxID_CANCEL, _("&Cancel"), wxDefaultPosition, wxDefaultSize, buttonStyle); |
| 452 | #ifndef __WXMAC__ |
| 453 | if (GetExtraStyle() & wxWIZARD_EX_HELPBUTTON) |
| 454 | btnHelp=new wxButton(this, wxID_HELP, _("&Help"), wxDefaultPosition, wxDefaultSize, buttonStyle); |
| 455 | #endif |
| 456 | m_btnPrev = new wxButton(this, wxID_BACKWARD, _("< &Back"), wxDefaultPosition, wxDefaultSize, buttonStyle); |
| 457 | |
| 458 | if (btnHelp) |
| 459 | { |
| 460 | buttonRow->Add( |
| 461 | btnHelp, |
| 462 | 0, // Horizontally unstretchable |
| 463 | wxALL, // Border all around, top aligned |
| 464 | 5 // Border width |
| 465 | ); |
| 466 | #ifdef __WXMAC__ |
| 467 | // Put stretchable space between help button and others |
| 468 | buttonRow->Add(0, 0, 1, wxALIGN_CENTRE, 0); |
| 469 | #endif |
| 470 | } |
| 471 | |
| 472 | AddBackNextPair(buttonRow); |
| 473 | |
| 474 | buttonRow->Add( |
| 475 | btnCancel, |
| 476 | 0, // Horizontally unstretchable |
| 477 | wxALL, // Border all around, top aligned |
| 478 | 5 // Border width |
| 479 | ); |
| 480 | } |
| 481 | |
| 482 | void wxWizard::DoCreateControls() |
| 483 | { |
| 484 | // do nothing if the controls were already created |
| 485 | if ( WasCreated() ) |
| 486 | return; |
| 487 | |
| 488 | bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA); |
| 489 | |
| 490 | // Horizontal stretching, and if not PDA, border all around |
| 491 | int mainColumnSizerFlags = isPda ? wxEXPAND : wxALL|wxEXPAND ; |
| 492 | |
| 493 | // wxWindow::SetSizer will be called at end |
| 494 | wxBoxSizer *windowSizer = new wxBoxSizer(wxVERTICAL); |
| 495 | |
| 496 | wxBoxSizer *mainColumn = new wxBoxSizer(wxVERTICAL); |
| 497 | windowSizer->Add( |
| 498 | mainColumn, |
| 499 | 1, // Vertical stretching |
| 500 | mainColumnSizerFlags, |
| 501 | 5 // Border width |
| 502 | ); |
| 503 | |
| 504 | AddBitmapRow(mainColumn); |
| 505 | |
| 506 | if (!isPda) |
| 507 | AddStaticLine(mainColumn); |
| 508 | |
| 509 | AddButtonRow(mainColumn); |
| 510 | |
| 511 | SetSizer(windowSizer); |
| 512 | } |
| 513 | |
| 514 | void wxWizard::SetPageSize(const wxSize& size) |
| 515 | { |
| 516 | wxCHECK_RET(!m_started, wxT("wxWizard::SetPageSize after RunWizard")); |
| 517 | m_sizePage = size; |
| 518 | } |
| 519 | |
| 520 | void wxWizard::FitToPage(const wxWizardPage *page) |
| 521 | { |
| 522 | wxCHECK_RET(!m_started, wxT("wxWizard::FitToPage after RunWizard")); |
| 523 | |
| 524 | while ( page ) |
| 525 | { |
| 526 | wxSize size = page->GetBestSize(); |
| 527 | |
| 528 | m_sizePage.IncTo(size); |
| 529 | |
| 530 | page = page->GetNext(); |
| 531 | } |
| 532 | } |
| 533 | |
| 534 | bool wxWizard::ShowPage(wxWizardPage *page, bool goingForward) |
| 535 | { |
| 536 | wxASSERT_MSG( page != m_page, wxT("this is useless") ); |
| 537 | |
| 538 | wxSizerFlags flags(1); |
| 539 | flags.Border(wxALL, m_border).Expand(); |
| 540 | |
| 541 | if ( !m_started ) |
| 542 | { |
| 543 | if ( m_usingSizer ) |
| 544 | { |
| 545 | m_sizerBmpAndPage->Add(m_sizerPage, flags); |
| 546 | |
| 547 | // now that our layout is computed correctly, hide the pages |
| 548 | // artificially shown in wxWizardSizer::Insert() back again |
| 549 | m_sizerPage->HidePages(); |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | |
| 554 | // we'll use this to decide whether we have to change the label of this |
| 555 | // button or not (initially the label is "Next") |
| 556 | bool btnLabelWasNext = true; |
| 557 | |
| 558 | // remember the old bitmap (if any) to compare with the new one later |
| 559 | wxBitmap bmpPrev; |
| 560 | |
| 561 | // check for previous page |
| 562 | if ( m_page ) |
| 563 | { |
| 564 | // send the event to the old page |
| 565 | wxWizardEvent event(wxEVT_WIZARD_PAGE_CHANGING, GetId(), |
| 566 | goingForward, m_page); |
| 567 | if ( m_page->GetEventHandler()->ProcessEvent(event) && |
| 568 | !event.IsAllowed() ) |
| 569 | { |
| 570 | // vetoed by the page |
| 571 | return false; |
| 572 | } |
| 573 | |
| 574 | m_page->Hide(); |
| 575 | |
| 576 | btnLabelWasNext = HasNextPage(m_page); |
| 577 | |
| 578 | bmpPrev = m_page->GetBitmap(); |
| 579 | |
| 580 | if ( !m_usingSizer ) |
| 581 | m_sizerBmpAndPage->Detach(m_page); |
| 582 | } |
| 583 | |
| 584 | // set the new page |
| 585 | m_page = page; |
| 586 | |
| 587 | // is this the end? |
| 588 | if ( !m_page ) |
| 589 | { |
| 590 | // terminate successfully |
| 591 | if ( IsModal() ) |
| 592 | { |
| 593 | EndModal(wxID_OK); |
| 594 | } |
| 595 | else |
| 596 | { |
| 597 | SetReturnCode(wxID_OK); |
| 598 | Hide(); |
| 599 | } |
| 600 | |
| 601 | // and notify the user code (this is especially useful for modeless |
| 602 | // wizards) |
| 603 | wxWizardEvent event(wxEVT_WIZARD_FINISHED, GetId(), false, 0); |
| 604 | (void)GetEventHandler()->ProcessEvent(event); |
| 605 | |
| 606 | return true; |
| 607 | } |
| 608 | |
| 609 | // position and show the new page |
| 610 | (void)m_page->TransferDataToWindow(); |
| 611 | |
| 612 | if ( m_usingSizer ) |
| 613 | { |
| 614 | // wxWizardSizer::RecalcSizes wants to be called when m_page changes |
| 615 | m_sizerPage->RecalcSizes(); |
| 616 | } |
| 617 | else // pages are not managed by the sizer |
| 618 | { |
| 619 | m_sizerBmpAndPage->Add(m_page, flags); |
| 620 | m_sizerBmpAndPage->SetItemMinSize(m_page, GetPageSize()); |
| 621 | } |
| 622 | |
| 623 | #if wxUSE_STATBMP |
| 624 | // update the bitmap if:it changed |
| 625 | if ( m_statbmp ) |
| 626 | { |
| 627 | wxBitmap bmp = m_page->GetBitmap(); |
| 628 | if ( !bmp.Ok() ) |
| 629 | bmp = m_bitmap; |
| 630 | |
| 631 | if ( !bmpPrev.Ok() ) |
| 632 | bmpPrev = m_bitmap; |
| 633 | |
| 634 | if ( bmp != bmpPrev ) |
| 635 | m_statbmp->SetBitmap(bmp); |
| 636 | } |
| 637 | #endif // wxUSE_STATBMP |
| 638 | |
| 639 | |
| 640 | // and update the buttons state |
| 641 | m_btnPrev->Enable(HasPrevPage(m_page)); |
| 642 | |
| 643 | bool hasNext = HasNextPage(m_page); |
| 644 | if ( btnLabelWasNext != hasNext ) |
| 645 | { |
| 646 | m_btnNext->SetLabel(hasNext ? _("&Next >") : _("&Finish")); |
| 647 | } |
| 648 | // nothing to do: the label was already correct |
| 649 | |
| 650 | m_btnNext->SetDefault(); |
| 651 | |
| 652 | |
| 653 | // send the change event to the new page now |
| 654 | wxWizardEvent event(wxEVT_WIZARD_PAGE_CHANGED, GetId(), goingForward, m_page); |
| 655 | (void)m_page->GetEventHandler()->ProcessEvent(event); |
| 656 | |
| 657 | // and finally show it |
| 658 | m_page->Show(); |
| 659 | m_page->SetFocus(); |
| 660 | |
| 661 | if ( !m_usingSizer ) |
| 662 | m_sizerBmpAndPage->Layout(); |
| 663 | |
| 664 | if ( !m_started ) |
| 665 | { |
| 666 | m_started = true; |
| 667 | |
| 668 | if ( wxSystemSettings::GetScreenType() > wxSYS_SCREEN_PDA ) |
| 669 | { |
| 670 | GetSizer()->SetSizeHints(this); |
| 671 | if ( m_posWizard == wxDefaultPosition ) |
| 672 | CentreOnScreen(); |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | return true; |
| 677 | } |
| 678 | |
| 679 | bool wxWizard::RunWizard(wxWizardPage *firstPage) |
| 680 | { |
| 681 | wxCHECK_MSG( firstPage, false, wxT("can't run empty wizard") ); |
| 682 | |
| 683 | // can't return false here because there is no old page |
| 684 | (void)ShowPage(firstPage, true /* forward */); |
| 685 | |
| 686 | m_wasModal = true; |
| 687 | |
| 688 | return ShowModal() == wxID_OK; |
| 689 | } |
| 690 | |
| 691 | wxWizardPage *wxWizard::GetCurrentPage() const |
| 692 | { |
| 693 | return m_page; |
| 694 | } |
| 695 | |
| 696 | wxSize wxWizard::GetPageSize() const |
| 697 | { |
| 698 | // default width and height of the page |
| 699 | int DEFAULT_PAGE_WIDTH, |
| 700 | DEFAULT_PAGE_HEIGHT; |
| 701 | if ( wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA ) |
| 702 | { |
| 703 | // Make the default page size small enough to fit on screen |
| 704 | DEFAULT_PAGE_WIDTH = wxSystemSettings::GetMetric(wxSYS_SCREEN_X) / 2; |
| 705 | DEFAULT_PAGE_HEIGHT = wxSystemSettings::GetMetric(wxSYS_SCREEN_Y) / 2; |
| 706 | } |
| 707 | else // !PDA |
| 708 | { |
| 709 | DEFAULT_PAGE_WIDTH = |
| 710 | DEFAULT_PAGE_HEIGHT = 270; |
| 711 | } |
| 712 | |
| 713 | // start with default minimal size |
| 714 | wxSize pageSize(DEFAULT_PAGE_WIDTH, DEFAULT_PAGE_HEIGHT); |
| 715 | |
| 716 | // make the page at least as big as specified by user |
| 717 | pageSize.IncTo(m_sizePage); |
| 718 | |
| 719 | if ( m_statbmp ) |
| 720 | { |
| 721 | // make the page at least as tall as the bitmap |
| 722 | pageSize.IncTo(wxSize(0, m_bitmap.GetHeight())); |
| 723 | } |
| 724 | |
| 725 | if ( m_usingSizer ) |
| 726 | { |
| 727 | // make it big enough to contain all pages added to the sizer |
| 728 | pageSize.IncTo(m_sizerPage->GetMaxChildSize()); |
| 729 | } |
| 730 | |
| 731 | return pageSize; |
| 732 | } |
| 733 | |
| 734 | wxSizer *wxWizard::GetPageAreaSizer() const |
| 735 | { |
| 736 | return m_sizerPage; |
| 737 | } |
| 738 | |
| 739 | void wxWizard::SetBorder(int border) |
| 740 | { |
| 741 | wxCHECK_RET(!m_started, wxT("wxWizard::SetBorder after RunWizard")); |
| 742 | |
| 743 | m_border = border; |
| 744 | } |
| 745 | |
| 746 | void wxWizard::OnCancel(wxCommandEvent& WXUNUSED(eventUnused)) |
| 747 | { |
| 748 | // this function probably can never be called when we don't have an active |
| 749 | // page, but a small extra check won't hurt |
| 750 | wxWindow *win = m_page ? (wxWindow *)m_page : (wxWindow *)this; |
| 751 | |
| 752 | wxWizardEvent event(wxEVT_WIZARD_CANCEL, GetId(), false, m_page); |
| 753 | if ( !win->GetEventHandler()->ProcessEvent(event) || event.IsAllowed() ) |
| 754 | { |
| 755 | // no objections - close the dialog |
| 756 | if(IsModal()) |
| 757 | { |
| 758 | EndModal(wxID_CANCEL); |
| 759 | } |
| 760 | else |
| 761 | { |
| 762 | SetReturnCode(wxID_CANCEL); |
| 763 | Hide(); |
| 764 | } |
| 765 | } |
| 766 | //else: request to Cancel ignored |
| 767 | } |
| 768 | |
| 769 | void wxWizard::OnBackOrNext(wxCommandEvent& event) |
| 770 | { |
| 771 | wxASSERT_MSG( (event.GetEventObject() == m_btnNext) || |
| 772 | (event.GetEventObject() == m_btnPrev), |
| 773 | wxT("unknown button") ); |
| 774 | |
| 775 | wxCHECK_RET( m_page, _T("should have a valid current page") ); |
| 776 | |
| 777 | // ask the current page first: notice that we do it before calling |
| 778 | // GetNext/Prev() because the data transfered from the controls of the page |
| 779 | // may change the value returned by these methods |
| 780 | if ( !m_page->Validate() || !m_page->TransferDataFromWindow() ) |
| 781 | { |
| 782 | // the page data is incorrect, don't do anything |
| 783 | return; |
| 784 | } |
| 785 | |
| 786 | bool forward = event.GetEventObject() == m_btnNext; |
| 787 | |
| 788 | wxWizardPage *page; |
| 789 | if ( forward ) |
| 790 | { |
| 791 | page = m_page->GetNext(); |
| 792 | } |
| 793 | else // back |
| 794 | { |
| 795 | page = m_page->GetPrev(); |
| 796 | |
| 797 | wxASSERT_MSG( page, wxT("\"<Back\" button should have been disabled") ); |
| 798 | } |
| 799 | |
| 800 | // just pass to the new page (or maybe not - but we don't care here) |
| 801 | (void)ShowPage(page, forward); |
| 802 | } |
| 803 | |
| 804 | void wxWizard::OnHelp(wxCommandEvent& WXUNUSED(event)) |
| 805 | { |
| 806 | // this function probably can never be called when we don't have an active |
| 807 | // page, but a small extra check won't hurt |
| 808 | if(m_page != NULL) |
| 809 | { |
| 810 | // Create and send the help event to the specific page handler |
| 811 | // event data contains the active page so that context-sensitive |
| 812 | // help is possible |
| 813 | wxWizardEvent eventHelp(wxEVT_WIZARD_HELP, GetId(), true, m_page); |
| 814 | (void)m_page->GetEventHandler()->ProcessEvent(eventHelp); |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | void wxWizard::OnWizEvent(wxWizardEvent& event) |
| 819 | { |
| 820 | // the dialogs have wxWS_EX_BLOCK_EVENTS style on by default but we want to |
| 821 | // propagate wxEVT_WIZARD_XXX to the parent (if any), so do it manually |
| 822 | if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) ) |
| 823 | { |
| 824 | // the event will be propagated anyhow |
| 825 | event.Skip(); |
| 826 | } |
| 827 | else |
| 828 | { |
| 829 | wxWindow *parent = GetParent(); |
| 830 | |
| 831 | if ( !parent || !parent->GetEventHandler()->ProcessEvent(event) ) |
| 832 | { |
| 833 | event.Skip(); |
| 834 | } |
| 835 | } |
| 836 | |
| 837 | if ( ( !m_wasModal ) && |
| 838 | event.IsAllowed() && |
| 839 | ( event.GetEventType() == wxEVT_WIZARD_FINISHED || |
| 840 | event.GetEventType() == wxEVT_WIZARD_CANCEL |
| 841 | ) |
| 842 | ) |
| 843 | { |
| 844 | Destroy(); |
| 845 | } |
| 846 | } |
| 847 | |
| 848 | // ---------------------------------------------------------------------------- |
| 849 | // wxWizardEvent |
| 850 | // ---------------------------------------------------------------------------- |
| 851 | |
| 852 | wxWizardEvent::wxWizardEvent(wxEventType type, int id, bool direction, wxWizardPage* page) |
| 853 | : wxNotifyEvent(type, id) |
| 854 | { |
| 855 | // Modified 10-20-2001 Robert Cavanaugh |
| 856 | // add the active page to the event data |
| 857 | m_direction = direction; |
| 858 | m_page = page; |
| 859 | } |
| 860 | |
| 861 | #endif // wxUSE_WIZARDDLG |