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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 | { | |
130 | Create(parent, bitmap); | |
131 | } | |
132 | ||
133 | bool wxWizardPage::Create(wxWizard *parent, | |
134 | const wxBitmap& bitmap) | |
135 | { | |
136 | if ( !wxPanel::Create(parent, wxID_ANY) ) | |
137 | return false; | |
138 | ||
139 | m_bitmap = bitmap; | |
140 | ||
141 | // initially the page is hidden, it's shown only when it becomes current | |
142 | Hide(); | |
143 | ||
144 | return true; | |
145 | } | |
146 | ||
147 | // ---------------------------------------------------------------------------- | |
148 | // wxWizardPageSimple | |
149 | // ---------------------------------------------------------------------------- | |
150 | ||
151 | wxWizardPage *wxWizardPageSimple::GetPrev() const | |
152 | { | |
153 | return m_prev; | |
154 | } | |
155 | ||
156 | wxWizardPage *wxWizardPageSimple::GetNext() const | |
157 | { | |
158 | return m_next; | |
159 | } | |
160 | ||
161 | // ---------------------------------------------------------------------------- | |
162 | // wxWizardSizer | |
163 | // ---------------------------------------------------------------------------- | |
164 | ||
165 | wxWizardSizer::wxWizardSizer(wxWizard *owner) | |
166 | : m_owner(owner), | |
167 | m_childSize(wxDefaultSize) | |
168 | { | |
169 | } | |
170 | ||
171 | wxSizerItem *wxWizardSizer::Insert(size_t index, wxSizerItem *item) | |
172 | { | |
173 | m_owner->m_usingSizer = true; | |
174 | ||
175 | if ( item->IsWindow() ) | |
176 | { | |
177 | // we must pretend that the window is shown as otherwise it wouldn't be | |
178 | // taken into account for the layout -- but avoid really showing it, so | |
179 | // just set the internal flag instead of calling wxWindow::Show() | |
180 | item->GetWindow()->wxWindowBase::Show(); | |
181 | } | |
182 | ||
183 | return wxSizer::Insert(index, item); | |
184 | } | |
185 | ||
186 | void wxWizardSizer::HidePages() | |
187 | { | |
188 | for ( wxSizerItemList::compatibility_iterator node = GetChildren().GetFirst(); | |
189 | node; | |
190 | node = node->GetNext() ) | |
191 | { | |
192 | wxSizerItem * const item = node->GetData(); | |
193 | if ( item->IsWindow() ) | |
194 | item->GetWindow()->wxWindowBase::Show(false); | |
195 | } | |
196 | } | |
197 | ||
198 | void wxWizardSizer::RecalcSizes() | |
199 | { | |
200 | // Effect of this function depends on m_owner->m_page and | |
201 | // it should be called whenever it changes (wxWizard::ShowPage) | |
202 | if ( m_owner->m_page ) | |
203 | { | |
204 | m_owner->m_page->SetSize(wxRect(m_position, m_size)); | |
205 | } | |
206 | } | |
207 | ||
208 | wxSize wxWizardSizer::CalcMin() | |
209 | { | |
210 | return m_owner->GetPageSize(); | |
211 | } | |
212 | ||
213 | wxSize wxWizardSizer::GetMaxChildSize() | |
214 | { | |
215 | #if !defined(__WXDEBUG__) | |
216 | if ( m_childSize.IsFullySpecified() ) | |
217 | return m_childSize; | |
218 | #endif | |
219 | ||
220 | wxSize maxOfMin; | |
221 | ||
222 | for ( wxSizerItemList::compatibility_iterator childNode = m_children.GetFirst(); | |
223 | childNode; | |
224 | childNode = childNode->GetNext() ) | |
225 | { | |
226 | wxSizerItem *child = childNode->GetData(); | |
227 | maxOfMin.IncTo(child->CalcMin()); | |
228 | maxOfMin.IncTo(SiblingSize(child)); | |
229 | } | |
230 | ||
231 | #ifdef __WXDEBUG__ | |
232 | if ( m_childSize.IsFullySpecified() && m_childSize != maxOfMin ) | |
233 | { | |
234 | wxFAIL_MSG( _T("Size changed in wxWizard::GetPageAreaSizer()") | |
235 | _T("after RunWizard().\n") | |
236 | _T("Did you forget to call GetSizer()->Fit(this) ") | |
237 | _T("for some page?")) ; | |
238 | ||
239 | return m_childSize; | |
240 | } | |
241 | #endif // __WXDEBUG__ | |
242 | ||
243 | if ( m_owner->m_started ) | |
244 | { | |
245 | m_childSize = maxOfMin; | |
246 | } | |
247 | ||
248 | return maxOfMin; | |
249 | } | |
250 | ||
251 | int wxWizardSizer::GetBorder() const | |
252 | { | |
253 | return m_owner->m_border; | |
254 | } | |
255 | ||
256 | wxSize wxWizardSizer::SiblingSize(wxSizerItem *child) | |
257 | { | |
258 | wxSize maxSibling; | |
259 | ||
260 | if ( child->IsWindow() ) | |
261 | { | |
262 | wxWizardPage *page = wxDynamicCast(child->GetWindow(), wxWizardPage); | |
263 | if ( page ) | |
264 | { | |
265 | for ( wxWizardPage *sibling = page->GetNext(); | |
266 | sibling; | |
267 | sibling = sibling->GetNext() ) | |
268 | { | |
269 | if ( sibling->GetSizer() ) | |
270 | { | |
271 | maxSibling.IncTo(sibling->GetSizer()->CalcMin()); | |
272 | } | |
273 | } | |
274 | } | |
275 | } | |
276 | ||
277 | return maxSibling; | |
278 | } | |
279 | ||
280 | // ---------------------------------------------------------------------------- | |
281 | // generic wxWizard implementation | |
282 | // ---------------------------------------------------------------------------- | |
283 | ||
284 | void wxWizard::Init() | |
285 | { | |
286 | m_posWizard = wxDefaultPosition; | |
287 | m_page = (wxWizardPage *)NULL; | |
288 | m_btnPrev = m_btnNext = NULL; | |
289 | m_statbmp = NULL; | |
290 | m_sizerBmpAndPage = NULL; | |
291 | m_sizerPage = NULL; | |
292 | m_border = 5; | |
293 | m_started = false; | |
294 | m_wasModal = false; | |
295 | m_usingSizer = false; | |
296 | } | |
297 | ||
298 | bool wxWizard::Create(wxWindow *parent, | |
299 | int id, | |
300 | const wxString& title, | |
301 | const wxBitmap& bitmap, | |
302 | const wxPoint& pos, | |
303 | long style) | |
304 | { | |
305 | bool result = wxDialog::Create(parent,id,title,pos,wxDefaultSize,style); | |
306 | ||
307 | m_posWizard = pos; | |
308 | m_bitmap = bitmap ; | |
309 | ||
310 | DoCreateControls(); | |
311 | ||
312 | return result; | |
313 | } | |
314 | ||
315 | wxWizard::~wxWizard() | |
316 | { | |
317 | // normally we don't have to delete this sizer as it's deleted by the | |
318 | // associated window but if we never used it or didn't set it as the window | |
319 | // sizer yet, do delete it manually | |
320 | if ( !m_usingSizer || !m_started ) | |
321 | delete m_sizerPage; | |
322 | } | |
323 | ||
324 | void wxWizard::AddBitmapRow(wxBoxSizer *mainColumn) | |
325 | { | |
326 | m_sizerBmpAndPage = new wxBoxSizer(wxHORIZONTAL); | |
327 | mainColumn->Add( | |
328 | m_sizerBmpAndPage, | |
329 | 1, // Vertically stretchable | |
330 | wxEXPAND // Horizonal stretching, no border | |
331 | ); | |
332 | mainColumn->Add(0,5, | |
333 | 0, // No vertical stretching | |
334 | wxEXPAND // No border, (mostly useless) horizontal stretching | |
335 | ); | |
336 | ||
337 | #if wxUSE_STATBMP | |
338 | if ( m_bitmap.Ok() ) | |
339 | { | |
340 | m_statbmp = new wxStaticBitmap(this, wxID_ANY, m_bitmap); | |
341 | m_sizerBmpAndPage->Add( | |
342 | m_statbmp, | |
343 | 0, // No horizontal stretching | |
344 | wxALL, // Border all around, top alignment | |
345 | 5 // Border width | |
346 | ); | |
347 | m_sizerBmpAndPage->Add( | |
348 | 5,0, | |
349 | 0, // No horizontal stretching | |
350 | wxEXPAND // No border, (mostly useless) vertical stretching | |
351 | ); | |
352 | } | |
353 | #endif | |
354 | ||
355 | // Added to m_sizerBmpAndPage later | |
356 | m_sizerPage = new wxWizardSizer(this); | |
357 | } | |
358 | ||
359 | void wxWizard::AddStaticLine(wxBoxSizer *mainColumn) | |
360 | { | |
361 | #if wxUSE_STATLINE | |
362 | mainColumn->Add( | |
363 | new wxStaticLine(this, wxID_ANY), | |
364 | 0, // Vertically unstretchable | |
365 | wxEXPAND | wxALL, // Border all around, horizontally stretchable | |
366 | 5 // Border width | |
367 | ); | |
368 | mainColumn->Add(0,5, | |
369 | 0, // No vertical stretching | |
370 | wxEXPAND // No border, (mostly useless) horizontal stretching | |
371 | ); | |
372 | #else | |
373 | (void)mainColumn; | |
374 | #endif // wxUSE_STATLINE | |
375 | } | |
376 | ||
377 | void wxWizard::AddBackNextPair(wxBoxSizer *buttonRow) | |
378 | { | |
379 | wxASSERT_MSG( m_btnNext && m_btnPrev, | |
380 | _T("You must create the buttons before calling ") | |
381 | _T("wxWizard::AddBackNextPair") ); | |
382 | ||
383 | // margin between Back and Next buttons | |
384 | #ifdef __WXMAC__ | |
385 | static const int BACKNEXT_MARGIN = 10; | |
386 | #else | |
387 | static const int BACKNEXT_MARGIN = 0; | |
388 | #endif | |
389 | ||
390 | wxBoxSizer *backNextPair = new wxBoxSizer(wxHORIZONTAL); | |
391 | buttonRow->Add( | |
392 | backNextPair, | |
393 | 0, // No horizontal stretching | |
394 | wxALL, // Border all around | |
395 | 5 // Border width | |
396 | ); | |
397 | ||
398 | backNextPair->Add(m_btnPrev); | |
399 | backNextPair->Add(BACKNEXT_MARGIN,0, | |
400 | 0, // No horizontal stretching | |
401 | wxEXPAND // No border, (mostly useless) vertical stretching | |
402 | ); | |
403 | backNextPair->Add(m_btnNext); | |
404 | } | |
405 | ||
406 | void wxWizard::AddButtonRow(wxBoxSizer *mainColumn) | |
407 | { | |
408 | // the order in which the buttons are created determines the TAB order - at least under MSWindows... | |
409 | // although the 'back' button appears before the 'next' button, a more userfriendly tab order is | |
410 | // to activate the 'next' button first (create the next button before the back button). | |
411 | // The reason is: The user will repeatedly enter information in the wizard pages and then wants to | |
412 | // press 'next'. If a user uses mostly the keyboard, he would have to skip the 'back' button | |
413 | // everytime. This is annoying. There is a second reason: RETURN acts as TAB. If the 'next' | |
414 | // button comes first in the TAB order, the user can enter information very fast using the RETURN | |
415 | // key to TAB to the next entry field and page. This would not be possible, if the 'back' button | |
416 | // was created before the 'next' button. | |
417 | ||
418 | bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA); | |
419 | int buttonStyle = isPda ? wxBU_EXACTFIT : 0; | |
420 | ||
421 | wxBoxSizer *buttonRow = new wxBoxSizer(wxHORIZONTAL); | |
422 | #ifdef __WXMAC__ | |
423 | if (GetExtraStyle() & wxWIZARD_EX_HELPBUTTON) | |
424 | mainColumn->Add( | |
425 | buttonRow, | |
426 | 0, // Vertically unstretchable | |
427 | wxGROW|wxALIGN_CENTRE | |
428 | ); | |
429 | else | |
430 | #endif | |
431 | mainColumn->Add( | |
432 | buttonRow, | |
433 | 0, // Vertically unstretchable | |
434 | wxALIGN_RIGHT // Right aligned, no border | |
435 | ); | |
436 | ||
437 | // Desired TAB order is 'next', 'cancel', 'help', 'back'. This makes the 'back' button the last control on the page. | |
438 | // Create the buttons in the right order... | |
439 | wxButton *btnHelp=0; | |
440 | #ifdef __WXMAC__ | |
441 | if (GetExtraStyle() & wxWIZARD_EX_HELPBUTTON) | |
442 | btnHelp=new wxButton(this, wxID_HELP, _("&Help"), wxDefaultPosition, wxDefaultSize, buttonStyle); | |
443 | #endif | |
444 | ||
445 | m_btnNext = new wxButton(this, wxID_FORWARD, _("&Next >")); | |
446 | wxButton *btnCancel=new wxButton(this, wxID_CANCEL, _("&Cancel"), wxDefaultPosition, wxDefaultSize, buttonStyle); | |
447 | #ifndef __WXMAC__ | |
448 | if (GetExtraStyle() & wxWIZARD_EX_HELPBUTTON) | |
449 | btnHelp=new wxButton(this, wxID_HELP, _("&Help"), wxDefaultPosition, wxDefaultSize, buttonStyle); | |
450 | #endif | |
451 | m_btnPrev = new wxButton(this, wxID_BACKWARD, _("< &Back"), wxDefaultPosition, wxDefaultSize, buttonStyle); | |
452 | ||
453 | if (btnHelp) | |
454 | { | |
455 | buttonRow->Add( | |
456 | btnHelp, | |
457 | 0, // Horizontally unstretchable | |
458 | wxALL, // Border all around, top aligned | |
459 | 5 // Border width | |
460 | ); | |
461 | #ifdef __WXMAC__ | |
462 | // Put stretchable space between help button and others | |
463 | buttonRow->Add(0, 0, 1, wxALIGN_CENTRE, 0); | |
464 | #endif | |
465 | } | |
466 | ||
467 | AddBackNextPair(buttonRow); | |
468 | ||
469 | buttonRow->Add( | |
470 | btnCancel, | |
471 | 0, // Horizontally unstretchable | |
472 | wxALL, // Border all around, top aligned | |
473 | 5 // Border width | |
474 | ); | |
475 | } | |
476 | ||
477 | void wxWizard::DoCreateControls() | |
478 | { | |
479 | // do nothing if the controls were already created | |
480 | if ( WasCreated() ) | |
481 | return; | |
482 | ||
483 | bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA); | |
484 | ||
485 | // Horizontal stretching, and if not PDA, border all around | |
486 | int mainColumnSizerFlags = isPda ? wxEXPAND : wxALL|wxEXPAND ; | |
487 | ||
488 | // wxWindow::SetSizer will be called at end | |
489 | wxBoxSizer *windowSizer = new wxBoxSizer(wxVERTICAL); | |
490 | ||
491 | wxBoxSizer *mainColumn = new wxBoxSizer(wxVERTICAL); | |
492 | windowSizer->Add( | |
493 | mainColumn, | |
494 | 1, // Vertical stretching | |
495 | mainColumnSizerFlags, | |
496 | 5 // Border width | |
497 | ); | |
498 | ||
499 | AddBitmapRow(mainColumn); | |
500 | ||
501 | if (!isPda) | |
502 | AddStaticLine(mainColumn); | |
503 | ||
504 | AddButtonRow(mainColumn); | |
505 | ||
506 | SetSizer(windowSizer); | |
507 | } | |
508 | ||
509 | void wxWizard::SetPageSize(const wxSize& size) | |
510 | { | |
511 | wxCHECK_RET(!m_started, wxT("wxWizard::SetPageSize after RunWizard")); | |
512 | m_sizePage = size; | |
513 | } | |
514 | ||
515 | void wxWizard::FitToPage(const wxWizardPage *page) | |
516 | { | |
517 | wxCHECK_RET(!m_started, wxT("wxWizard::FitToPage after RunWizard")); | |
518 | ||
519 | while ( page ) | |
520 | { | |
521 | wxSize size = page->GetBestSize(); | |
522 | ||
523 | m_sizePage.IncTo(size); | |
524 | ||
525 | page = page->GetNext(); | |
526 | } | |
527 | } | |
528 | ||
529 | bool wxWizard::ShowPage(wxWizardPage *page, bool goingForward) | |
530 | { | |
531 | wxASSERT_MSG( page != m_page, wxT("this is useless") ); | |
532 | ||
533 | wxSizerFlags flags(1); | |
534 | flags.Border(wxALL, m_border).Expand(); | |
535 | ||
536 | if ( !m_started ) | |
537 | { | |
538 | if ( m_usingSizer ) | |
539 | { | |
540 | m_sizerBmpAndPage->Add(m_sizerPage, flags); | |
541 | ||
542 | // now that our layout is computed correctly, hide the pages | |
543 | // artificially shown in wxWizardSizer::Insert() back again | |
544 | m_sizerPage->HidePages(); | |
545 | } | |
546 | } | |
547 | ||
548 | ||
549 | // we'll use this to decide whether we have to change the label of this | |
550 | // button or not (initially the label is "Next") | |
551 | bool btnLabelWasNext = true; | |
552 | ||
553 | // remember the old bitmap (if any) to compare with the new one later | |
554 | wxBitmap bmpPrev; | |
555 | ||
556 | // check for previous page | |
557 | if ( m_page ) | |
558 | { | |
559 | // send the event to the old page | |
560 | wxWizardEvent event(wxEVT_WIZARD_PAGE_CHANGING, GetId(), | |
561 | goingForward, m_page); | |
562 | if ( m_page->GetEventHandler()->ProcessEvent(event) && | |
563 | !event.IsAllowed() ) | |
564 | { | |
565 | // vetoed by the page | |
566 | return false; | |
567 | } | |
568 | ||
569 | m_page->Hide(); | |
570 | ||
571 | btnLabelWasNext = HasNextPage(m_page); | |
572 | ||
573 | bmpPrev = m_page->GetBitmap(); | |
574 | ||
575 | if ( !m_usingSizer ) | |
576 | m_sizerBmpAndPage->Detach(m_page); | |
577 | } | |
578 | ||
579 | // set the new page | |
580 | m_page = page; | |
581 | ||
582 | // is this the end? | |
583 | if ( !m_page ) | |
584 | { | |
585 | // terminate successfully | |
586 | if ( IsModal() ) | |
587 | { | |
588 | EndModal(wxID_OK); | |
589 | } | |
590 | else | |
591 | { | |
592 | SetReturnCode(wxID_OK); | |
593 | Hide(); | |
594 | } | |
595 | ||
596 | // and notify the user code (this is especially useful for modeless | |
597 | // wizards) | |
598 | wxWizardEvent event(wxEVT_WIZARD_FINISHED, GetId(), false, 0); | |
599 | (void)GetEventHandler()->ProcessEvent(event); | |
600 | ||
601 | return true; | |
602 | } | |
603 | ||
604 | // position and show the new page | |
605 | (void)m_page->TransferDataToWindow(); | |
606 | ||
607 | if ( m_usingSizer ) | |
608 | { | |
609 | // wxWizardSizer::RecalcSizes wants to be called when m_page changes | |
610 | m_sizerPage->RecalcSizes(); | |
611 | } | |
612 | else // pages are not managed by the sizer | |
613 | { | |
614 | m_sizerBmpAndPage->Add(m_page, flags); | |
615 | m_sizerBmpAndPage->SetItemMinSize(m_page, GetPageSize()); | |
616 | } | |
617 | ||
618 | #if wxUSE_STATBMP | |
619 | // update the bitmap if:it changed | |
620 | if ( m_statbmp ) | |
621 | { | |
622 | wxBitmap bmp = m_page->GetBitmap(); | |
623 | if ( !bmp.Ok() ) | |
624 | bmp = m_bitmap; | |
625 | ||
626 | if ( !bmpPrev.Ok() ) | |
627 | bmpPrev = m_bitmap; | |
628 | ||
629 | if ( !bmp.IsSameAs(bmpPrev) ) | |
630 | m_statbmp->SetBitmap(bmp); | |
631 | } | |
632 | #endif // wxUSE_STATBMP | |
633 | ||
634 | ||
635 | // and update the buttons state | |
636 | m_btnPrev->Enable(HasPrevPage(m_page)); | |
637 | ||
638 | bool hasNext = HasNextPage(m_page); | |
639 | if ( btnLabelWasNext != hasNext ) | |
640 | { | |
641 | if ( hasNext ) | |
642 | m_btnNext->SetLabel(_("&Next >")); | |
643 | else | |
644 | m_btnNext->SetLabel(_("&Finish")); | |
645 | } | |
646 | // nothing to do: the label was already correct | |
647 | ||
648 | m_btnNext->SetDefault(); | |
649 | ||
650 | ||
651 | // send the change event to the new page now | |
652 | wxWizardEvent event(wxEVT_WIZARD_PAGE_CHANGED, GetId(), goingForward, m_page); | |
653 | (void)m_page->GetEventHandler()->ProcessEvent(event); | |
654 | ||
655 | // and finally show it | |
656 | m_page->Show(); | |
657 | m_page->SetFocus(); | |
658 | ||
659 | if ( !m_usingSizer ) | |
660 | m_sizerBmpAndPage->Layout(); | |
661 | ||
662 | if ( !m_started ) | |
663 | { | |
664 | m_started = true; | |
665 | ||
666 | if ( wxSystemSettings::GetScreenType() > wxSYS_SCREEN_PDA ) | |
667 | { | |
668 | GetSizer()->SetSizeHints(this); | |
669 | if ( m_posWizard == wxDefaultPosition ) | |
670 | CentreOnScreen(); | |
671 | } | |
672 | } | |
673 | ||
674 | return true; | |
675 | } | |
676 | ||
677 | bool wxWizard::RunWizard(wxWizardPage *firstPage) | |
678 | { | |
679 | wxCHECK_MSG( firstPage, false, wxT("can't run empty wizard") ); | |
680 | ||
681 | // can't return false here because there is no old page | |
682 | (void)ShowPage(firstPage, true /* forward */); | |
683 | ||
684 | m_wasModal = true; | |
685 | ||
686 | return ShowModal() == wxID_OK; | |
687 | } | |
688 | ||
689 | wxWizardPage *wxWizard::GetCurrentPage() const | |
690 | { | |
691 | return m_page; | |
692 | } | |
693 | ||
694 | wxSize wxWizard::GetPageSize() const | |
695 | { | |
696 | // default width and height of the page | |
697 | int DEFAULT_PAGE_WIDTH, | |
698 | DEFAULT_PAGE_HEIGHT; | |
699 | if ( wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA ) | |
700 | { | |
701 | // Make the default page size small enough to fit on screen | |
702 | DEFAULT_PAGE_WIDTH = wxSystemSettings::GetMetric(wxSYS_SCREEN_X) / 2; | |
703 | DEFAULT_PAGE_HEIGHT = wxSystemSettings::GetMetric(wxSYS_SCREEN_Y) / 2; | |
704 | } | |
705 | else // !PDA | |
706 | { | |
707 | DEFAULT_PAGE_WIDTH = | |
708 | DEFAULT_PAGE_HEIGHT = 270; | |
709 | } | |
710 | ||
711 | // start with default minimal size | |
712 | wxSize pageSize(DEFAULT_PAGE_WIDTH, DEFAULT_PAGE_HEIGHT); | |
713 | ||
714 | // make the page at least as big as specified by user | |
715 | pageSize.IncTo(m_sizePage); | |
716 | ||
717 | if ( m_statbmp ) | |
718 | { | |
719 | // make the page at least as tall as the bitmap | |
720 | pageSize.IncTo(wxSize(0, m_bitmap.GetHeight())); | |
721 | } | |
722 | ||
723 | if ( m_usingSizer ) | |
724 | { | |
725 | // make it big enough to contain all pages added to the sizer | |
726 | pageSize.IncTo(m_sizerPage->GetMaxChildSize()); | |
727 | } | |
728 | ||
729 | return pageSize; | |
730 | } | |
731 | ||
732 | wxSizer *wxWizard::GetPageAreaSizer() const | |
733 | { | |
734 | return m_sizerPage; | |
735 | } | |
736 | ||
737 | void wxWizard::SetBorder(int border) | |
738 | { | |
739 | wxCHECK_RET(!m_started, wxT("wxWizard::SetBorder after RunWizard")); | |
740 | ||
741 | m_border = border; | |
742 | } | |
743 | ||
744 | void wxWizard::OnCancel(wxCommandEvent& WXUNUSED(eventUnused)) | |
745 | { | |
746 | // this function probably can never be called when we don't have an active | |
747 | // page, but a small extra check won't hurt | |
748 | wxWindow *win = m_page ? (wxWindow *)m_page : (wxWindow *)this; | |
749 | ||
750 | wxWizardEvent event(wxEVT_WIZARD_CANCEL, GetId(), false, m_page); | |
751 | if ( !win->GetEventHandler()->ProcessEvent(event) || event.IsAllowed() ) | |
752 | { | |
753 | // no objections - close the dialog | |
754 | if(IsModal()) | |
755 | { | |
756 | EndModal(wxID_CANCEL); | |
757 | } | |
758 | else | |
759 | { | |
760 | SetReturnCode(wxID_CANCEL); | |
761 | Hide(); | |
762 | } | |
763 | } | |
764 | //else: request to Cancel ignored | |
765 | } | |
766 | ||
767 | void wxWizard::OnBackOrNext(wxCommandEvent& event) | |
768 | { | |
769 | wxASSERT_MSG( (event.GetEventObject() == m_btnNext) || | |
770 | (event.GetEventObject() == m_btnPrev), | |
771 | wxT("unknown button") ); | |
772 | ||
773 | wxCHECK_RET( m_page, _T("should have a valid current page") ); | |
774 | ||
775 | // ask the current page first: notice that we do it before calling | |
776 | // GetNext/Prev() because the data transfered from the controls of the page | |
777 | // may change the value returned by these methods | |
778 | if ( !m_page->Validate() || !m_page->TransferDataFromWindow() ) | |
779 | { | |
780 | // the page data is incorrect, don't do anything | |
781 | return; | |
782 | } | |
783 | ||
784 | bool forward = event.GetEventObject() == m_btnNext; | |
785 | ||
786 | wxWizardPage *page; | |
787 | if ( forward ) | |
788 | { | |
789 | page = m_page->GetNext(); | |
790 | } | |
791 | else // back | |
792 | { | |
793 | page = m_page->GetPrev(); | |
794 | ||
795 | wxASSERT_MSG( page, wxT("\"<Back\" button should have been disabled") ); | |
796 | } | |
797 | ||
798 | // just pass to the new page (or maybe not - but we don't care here) | |
799 | (void)ShowPage(page, forward); | |
800 | } | |
801 | ||
802 | void wxWizard::OnHelp(wxCommandEvent& WXUNUSED(event)) | |
803 | { | |
804 | // this function probably can never be called when we don't have an active | |
805 | // page, but a small extra check won't hurt | |
806 | if(m_page != NULL) | |
807 | { | |
808 | // Create and send the help event to the specific page handler | |
809 | // event data contains the active page so that context-sensitive | |
810 | // help is possible | |
811 | wxWizardEvent eventHelp(wxEVT_WIZARD_HELP, GetId(), true, m_page); | |
812 | (void)m_page->GetEventHandler()->ProcessEvent(eventHelp); | |
813 | } | |
814 | } | |
815 | ||
816 | void wxWizard::OnWizEvent(wxWizardEvent& event) | |
817 | { | |
818 | // the dialogs have wxWS_EX_BLOCK_EVENTS style on by default but we want to | |
819 | // propagate wxEVT_WIZARD_XXX to the parent (if any), so do it manually | |
820 | if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) ) | |
821 | { | |
822 | // the event will be propagated anyhow | |
823 | event.Skip(); | |
824 | } | |
825 | else | |
826 | { | |
827 | wxWindow *parent = GetParent(); | |
828 | ||
829 | if ( !parent || !parent->GetEventHandler()->ProcessEvent(event) ) | |
830 | { | |
831 | event.Skip(); | |
832 | } | |
833 | } | |
834 | ||
835 | if ( ( !m_wasModal ) && | |
836 | event.IsAllowed() && | |
837 | ( event.GetEventType() == wxEVT_WIZARD_FINISHED || | |
838 | event.GetEventType() == wxEVT_WIZARD_CANCEL | |
839 | ) | |
840 | ) | |
841 | { | |
842 | Destroy(); | |
843 | } | |
844 | } | |
845 | ||
846 | void wxWizard::SetBitmap(const wxBitmap& bitmap) | |
847 | { | |
848 | m_bitmap = bitmap; | |
849 | if (m_statbmp) | |
850 | m_statbmp->SetBitmap(m_bitmap); | |
851 | } | |
852 | ||
853 | // ---------------------------------------------------------------------------- | |
854 | // wxWizardEvent | |
855 | // ---------------------------------------------------------------------------- | |
856 | ||
857 | wxWizardEvent::wxWizardEvent(wxEventType type, int id, bool direction, wxWizardPage* page) | |
858 | : wxNotifyEvent(type, id) | |
859 | { | |
860 | // Modified 10-20-2001 Robert Cavanaugh | |
861 | // add the active page to the event data | |
862 | m_direction = direction; | |
863 | m_page = page; | |
864 | } | |
865 | ||
866 | #endif // wxUSE_WIZARDDLG |