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Change wxNotebook selection before sending page changed event in wxMSW.
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1///////////////////////////////////////////////////////////////////////////////
2// Name: src/osx/notebook_osx.cpp
3// Purpose: implementation of wxNotebook
4// Author: Stefan Csomor
5// Modified by:
6// Created: 1998-01-01
7// RCS-ID: $Id$
8// Copyright: (c) Stefan Csomor
9// Licence: wxWindows licence
10///////////////////////////////////////////////////////////////////////////////
11
12#include "wx/wxprec.h"
13
14#if wxUSE_NOTEBOOK
15
16#include "wx/notebook.h"
17
18#ifndef WX_PRECOMP
19 #include "wx/string.h"
20 #include "wx/log.h"
21 #include "wx/app.h"
22 #include "wx/image.h"
23#endif
24
25#include "wx/string.h"
26#include "wx/imaglist.h"
27#include "wx/osx/private.h"
28
29
30// check that the page index is valid
31#define IS_VALID_PAGE(nPage) ((nPage) < GetPageCount())
32
33BEGIN_EVENT_TABLE(wxNotebook, wxBookCtrlBase)
34 EVT_NOTEBOOK_PAGE_CHANGED(wxID_ANY, wxNotebook::OnSelChange)
35
36 EVT_SIZE(wxNotebook::OnSize)
37 EVT_SET_FOCUS(wxNotebook::OnSetFocus)
38 EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
39END_EVENT_TABLE()
40
41bool wxNotebook::Create( wxWindow *parent,
42 wxWindowID id,
43 const wxPoint& pos,
44 const wxSize& size,
45 long style,
46 const wxString& name )
47{
48 DontCreatePeer();
49
50 if (! (style & wxBK_ALIGN_MASK))
51 style |= wxBK_TOP;
52
53 if ( !wxNotebookBase::Create( parent, id, pos, size, style, name ) )
54 return false;
55
56 SetPeer(wxWidgetImpl::CreateTabView(this,parent, id, pos, size, style, GetExtraStyle() ));
57
58 MacPostControlCreate( pos, size );
59
60 return true ;
61}
62
63// dtor
64wxNotebook::~wxNotebook()
65{
66}
67
68// ----------------------------------------------------------------------------
69// wxNotebook accessors
70// ----------------------------------------------------------------------------
71
72void wxNotebook::SetPadding(const wxSize& WXUNUSED(padding))
73{
74 // unsupported by OS
75}
76
77void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
78{
79 // unsupported by OS
80}
81
82void wxNotebook::SetPageSize(const wxSize& size)
83{
84 SetSize( CalcSizeFromPage( size ) );
85}
86
87wxSize wxNotebook::CalcSizeFromPage(const wxSize& sizePage) const
88{
89 return DoGetSizeFromClientSize( sizePage );
90}
91
92int wxNotebook::DoSetSelection(size_t nPage, int flags)
93{
94 wxCHECK_MSG( IS_VALID_PAGE(nPage), wxNOT_FOUND, wxT("DoSetSelection: invalid notebook page") );
95
96 if ( m_selection == wxNOT_FOUND || nPage != (size_t)m_selection )
97 {
98 if ( flags & SetSelection_SendEvent )
99 {
100 if ( !SendPageChangingEvent(nPage) )
101 {
102 // vetoed by program
103 return m_selection;
104 }
105 //else: program allows the page change
106
107 SendPageChangedEvent(m_selection, nPage);
108 }
109
110 ChangePage(m_selection, nPage);
111 }
112 //else: no change
113
114 return m_selection;
115}
116
117bool wxNotebook::SetPageText(size_t nPage, const wxString& strText)
118{
119 wxCHECK_MSG( IS_VALID_PAGE(nPage), false, wxT("SetPageText: invalid notebook page") );
120
121 wxNotebookPage *page = m_pages[nPage];
122 page->SetLabel(wxStripMenuCodes(strText));
123 MacSetupTabs();
124
125 return true;
126}
127
128wxString wxNotebook::GetPageText(size_t nPage) const
129{
130 wxCHECK_MSG( IS_VALID_PAGE(nPage), wxEmptyString, wxT("GetPageText: invalid notebook page") );
131
132 wxNotebookPage *page = m_pages[nPage];
133
134 return page->GetLabel();
135}
136
137int wxNotebook::GetPageImage(size_t nPage) const
138{
139 wxCHECK_MSG( IS_VALID_PAGE(nPage), wxNOT_FOUND, wxT("GetPageImage: invalid notebook page") );
140
141 return m_images[nPage];
142}
143
144bool wxNotebook::SetPageImage(size_t nPage, int nImage)
145{
146 wxCHECK_MSG( IS_VALID_PAGE(nPage), false,
147 wxT("SetPageImage: invalid notebook page") );
148 wxCHECK_MSG( m_imageList && nImage < m_imageList->GetImageCount(), false,
149 wxT("SetPageImage: invalid image index") );
150
151 if ( nImage != m_images[nPage] )
152 {
153 // if the item didn't have an icon before or, on the contrary, did have
154 // it but has lost it now, its size will change - but if the icon just
155 // changes, it won't
156 m_images[nPage] = nImage;
157
158 MacSetupTabs() ;
159 }
160
161 return true;
162}
163
164// ----------------------------------------------------------------------------
165// wxNotebook operations
166// ----------------------------------------------------------------------------
167
168// remove one page from the notebook, without deleting the window
169wxNotebookPage* wxNotebook::DoRemovePage(size_t nPage)
170{
171 wxCHECK_MSG( IS_VALID_PAGE(nPage), NULL,
172 wxT("DoRemovePage: invalid notebook page") );
173
174 wxNotebookPage* page = m_pages[nPage] ;
175 m_pages.RemoveAt(nPage);
176
177 MacSetupTabs();
178
179 if (m_selection >= (int)GetPageCount())
180 m_selection = GetPageCount() - 1;
181
182 if (m_selection >= 0)
183 m_pages[m_selection]->Show(true);
184
185 InvalidateBestSize();
186
187 return page;
188}
189
190// remove all pages
191bool wxNotebook::DeleteAllPages()
192{
193 WX_CLEAR_ARRAY(m_pages) ;
194 MacSetupTabs();
195 m_selection = wxNOT_FOUND ;
196 InvalidateBestSize();
197
198 return true;
199}
200
201// same as AddPage() but does it at given position
202bool wxNotebook::InsertPage(size_t nPage,
203 wxNotebookPage *pPage,
204 const wxString& strText,
205 bool bSelect,
206 int imageId )
207{
208 if ( !wxNotebookBase::InsertPage( nPage, pPage, strText, bSelect, imageId ) )
209 return false;
210
211 wxASSERT_MSG( pPage->GetParent() == this, wxT("notebook pages must have notebook as parent") );
212
213 // don't show pages by default (we'll need to adjust their size first)
214 pPage->Show( false ) ;
215
216 pPage->SetLabel( wxStripMenuCodes(strText) );
217
218 m_images.Insert( imageId, nPage );
219
220 MacSetupTabs();
221
222 wxRect rect = GetPageRect() ;
223 pPage->SetSize( rect );
224 if ( pPage->GetAutoLayout() )
225 pPage->Layout();
226
227 // now deal with the selection
228 // ---------------------------
229
230 // if the inserted page is before the selected one, we must update the
231 // index of the selected page
232
233 if ( int(nPage) <= m_selection )
234 {
235 m_selection++;
236
237 // while this still is the same page showing, we need to update the tabs
238 GetPeer()->SetValue( m_selection + 1 ) ;
239 }
240
241 DoSetSelectionAfterInsertion(nPage, bSelect);
242
243 InvalidateBestSize();
244
245 return true;
246}
247
248int wxNotebook::HitTest(const wxPoint& WXUNUSED(pt), long * WXUNUSED(flags)) const
249{
250 int resultV = wxNOT_FOUND;
251#if 0
252 const int countPages = GetPageCount();
253
254 // we have to convert from Client to Window relative coordinates
255 wxPoint adjustedPt = pt + GetClientAreaOrigin();
256 // and now to HIView native ones
257 adjustedPt.x -= MacGetLeftBorderSize() ;
258 adjustedPt.y -= MacGetTopBorderSize() ;
259
260 HIPoint hipoint= { adjustedPt.x , adjustedPt.y } ;
261 HIViewPartCode outPart = 0 ;
262 OSStatus err = HIViewGetPartHit( GetPeer()->GetControlRef(), &hipoint, &outPart );
263
264 int max = GetPeer()->GetMaximum() ;
265 if ( outPart == 0 && max > 0 )
266 {
267 // this is a hack, as unfortunately a hit on an already selected tab returns 0,
268 // so we have to go some extra miles to make sure we select something different
269 // and try again ..
270 int val = GetPeer()->GetValue() ;
271 int maxval = max ;
272 if ( max == 1 )
273 {
274 GetPeer()->SetMaximum( 2 ) ;
275 maxval = 2 ;
276 }
277
278 if ( val == 1 )
279 GetPeer()->SetValue( maxval ) ;
280 else
281 GetPeer()->SetValue( 1 ) ;
282
283 err = HIViewGetPartHit( GetPeer()->GetControlRef(), &hipoint, &outPart );
284
285 GetPeer()->SetValue( val ) ;
286 if ( max == 1 )
287 GetPeer()->SetMaximum( 1 ) ;
288 }
289
290 if ( outPart >= 1 && outPart <= countPages )
291 resultV = outPart - 1 ;
292
293 if (flags != NULL)
294 {
295 *flags = 0;
296
297 // we cannot differentiate better
298 if (resultV >= 0)
299 *flags |= wxBK_HITTEST_ONLABEL;
300 else
301 *flags |= wxBK_HITTEST_NOWHERE;
302 }
303#endif
304 return resultV;
305}
306
307// Added by Mark Newsam
308// When a page is added or deleted to the notebook this function updates
309// information held in the control so that it matches the order
310// the user would expect.
311//
312void wxNotebook::MacSetupTabs()
313{
314 GetPeer()->SetupTabs(*this);
315 Refresh();
316}
317
318wxRect wxNotebook::GetPageRect() const
319{
320 wxSize size = GetClientSize() ;
321
322 return wxRect( 0 , 0 , size.x , size.y ) ;
323}
324
325// ----------------------------------------------------------------------------
326// wxNotebook callbacks
327// ----------------------------------------------------------------------------
328
329// @@@ OnSize() is used for setting the font when it's called for the first
330// time because doing it in ::Create() doesn't work (for unknown reasons)
331void wxNotebook::OnSize(wxSizeEvent& event)
332{
333 unsigned int nCount = m_pages.Count();
334 wxRect rect = GetPageRect() ;
335
336 for ( unsigned int nPage = 0; nPage < nCount; nPage++ )
337 {
338 wxNotebookPage *pPage = m_pages[nPage];
339 pPage->SetSize(rect, wxSIZE_FORCE_EVENT);
340 }
341
342 // If the selected page is hidden at this point, the notebook
343 // has become visible for the first time after creation, and
344 // we postponed showing the page in ChangePage().
345 // So show the selected page now.
346 if ( m_selection != wxNOT_FOUND )
347 {
348 wxNotebookPage *pPage = m_pages[m_selection];
349 if ( !pPage->IsShown() )
350 {
351 pPage->Show( true );
352 pPage->SetFocus();
353 }
354 }
355
356 // Processing continues to next OnSize
357 event.Skip();
358}
359
360void wxNotebook::OnSelChange(wxBookCtrlEvent& event)
361{
362 // is it our tab control?
363 if ( event.GetEventObject() == this )
364 ChangePage(event.GetOldSelection(), event.GetSelection());
365
366 // we want to give others a chance to process this message as well
367 event.Skip();
368}
369
370void wxNotebook::OnSetFocus(wxFocusEvent& event)
371{
372 // set focus to the currently selected page if any
373 if ( m_selection != wxNOT_FOUND )
374 m_pages[m_selection]->SetFocus();
375
376 event.Skip();
377}
378
379void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
380{
381 if ( event.IsWindowChange() )
382 {
383 // change pages
384 AdvanceSelection( event.GetDirection() );
385 }
386 else
387 {
388 // we get this event in 2 cases
389 //
390 // a) one of our pages might have generated it because the user TABbed
391 // out from it in which case we should propagate the event upwards and
392 // our parent will take care of setting the focus to prev/next sibling
393 //
394 // or
395 //
396 // b) the parent panel wants to give the focus to us so that we
397 // forward it to our selected page. We can't deal with this in
398 // OnSetFocus() because we don't know which direction the focus came
399 // from in this case and so can't choose between setting the focus to
400 // first or last panel child
401 wxWindow *parent = GetParent();
402
403 // the cast is here to fix a GCC ICE
404 if ( ((wxWindow*)event.GetEventObject()) == parent )
405 {
406 // no, it doesn't come from child, case (b): forward to a page
407 if ( m_selection != wxNOT_FOUND )
408 {
409 // so that the page knows that the event comes from it's parent
410 // and is being propagated downwards
411 event.SetEventObject( this );
412
413 wxWindow *page = m_pages[m_selection];
414 if ( !page->HandleWindowEvent( event ) )
415 {
416 page->SetFocus();
417 }
418 //else: page manages focus inside it itself
419 }
420 else
421 {
422 // we have no pages - still have to give focus to _something_
423 SetFocus();
424 }
425 }
426 else
427 {
428 // it comes from our child, case (a), pass to the parent
429 if ( parent )
430 {
431 event.SetCurrentFocus( this );
432 parent->HandleWindowEvent( event );
433 }
434 }
435 }
436}
437
438// ----------------------------------------------------------------------------
439// wxNotebook base class virtuals
440// ----------------------------------------------------------------------------
441
442#if wxUSE_CONSTRAINTS
443
444// override these 2 functions to do nothing: everything is done in OnSize
445
446void wxNotebook::SetConstraintSizes(bool WXUNUSED(recurse))
447{
448 // don't set the sizes of the pages - their correct size is not yet known
449 wxControl::SetConstraintSizes( false );
450}
451
452bool wxNotebook::DoPhase(int WXUNUSED(nPhase))
453{
454 return true;
455}
456
457#endif // wxUSE_CONSTRAINTS
458
459void wxNotebook::Command(wxCommandEvent& WXUNUSED(event))
460{
461 wxFAIL_MSG(wxT("wxNotebook::Command not implemented"));
462}
463
464// ----------------------------------------------------------------------------
465// wxNotebook helper functions
466// ----------------------------------------------------------------------------
467
468// hide the currently active panel and show the new one
469void wxNotebook::ChangePage(int nOldSel, int nSel)
470{
471 if (nOldSel == nSel)
472 return;
473
474 if ( nOldSel != wxNOT_FOUND )
475 m_pages[nOldSel]->Show( false );
476
477 if ( nSel != wxNOT_FOUND )
478 {
479 wxNotebookPage *pPage = m_pages[nSel];
480 if ( IsShownOnScreen() )
481 {
482 pPage->Show( true );
483 pPage->SetFocus();
484 }
485 else
486 {
487 // Postpone Show() until the control is actually shown.
488 // Otherwise this forces the containing toplevel window
489 // to show, even if it's just being created and called
490 // AddPage() without intent to show the window yet.
491 // We Show() the selected page in our OnSize handler,
492 // unless it already is shown.
493 }
494 }
495
496 m_selection = nSel;
497 GetPeer()->SetValue( m_selection + 1 ) ;
498}
499
500bool wxNotebook::OSXHandleClicked( double WXUNUSED(timestampsec) )
501{
502 bool status = false ;
503
504 SInt32 newSel = GetPeer()->GetValue() - 1 ;
505 if ( newSel != m_selection )
506 {
507 wxBookCtrlEvent changing(
508 wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING, m_windowId,
509 newSel , m_selection );
510 changing.SetEventObject( this );
511 HandleWindowEvent( changing );
512
513 if ( changing.IsAllowed() )
514 {
515 wxBookCtrlEvent event(
516 wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED, m_windowId,
517 newSel, m_selection );
518 event.SetEventObject( this );
519 HandleWindowEvent( event );
520 }
521 else
522 {
523 GetPeer()->SetValue( m_selection + 1 ) ;
524 }
525
526 status = true ;
527 }
528
529 return status ;
530}
531
532#endif