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456bc6d9 VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: wx/containr.h | |
4d98817c | 3 | // Purpose: wxControlContainer and wxNavigationEnabled declarations |
456bc6d9 VZ |
4 | // Author: Vadim Zeitlin |
5 | // Modified by: | |
6 | // Created: 06.08.01 | |
7 | // RCS-ID: $Id$ | |
4d98817c | 8 | // Copyright: (c) 2001, 2011 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> |
65571936 | 9 | // Licence: wxWindows licence |
456bc6d9 VZ |
10 | /////////////////////////////////////////////////////////////////////////////// |
11 | ||
12 | #ifndef _WX_CONTAINR_H_ | |
13 | #define _WX_CONTAINR_H_ | |
14 | ||
617fb24f VZ |
15 | #include "wx/defs.h" |
16 | ||
9f1bf940 VZ |
17 | #ifndef wxHAS_NATIVE_TAB_TRAVERSAL |
18 | // We need wxEVT_XXX declarations in this case. | |
19 | #include "wx/event.h" | |
20 | #endif | |
21 | ||
b5dbe15d VS |
22 | class WXDLLIMPEXP_FWD_CORE wxWindow; |
23 | class WXDLLIMPEXP_FWD_CORE wxWindowBase; | |
bf0e8244 | 24 | |
80332672 | 25 | /* |
4d98817c VZ |
26 | This header declares wxControlContainer class however it's not a real |
27 | container of controls but rather just a helper used to implement TAB | |
28 | navigation among the window children. You should rarely need to use it | |
29 | directly, derive from the documented public wxNavigationEnabled<> class to | |
30 | implement TAB navigation in a custom composite window. | |
80332672 VZ |
31 | */ |
32 | ||
33 | // ---------------------------------------------------------------------------- | |
34 | // wxControlContainerBase: common part used in both native and generic cases | |
35 | // ---------------------------------------------------------------------------- | |
36 | ||
53a2db12 | 37 | class WXDLLIMPEXP_CORE wxControlContainerBase |
80332672 VZ |
38 | { |
39 | public: | |
40 | // default ctor, SetContainerWindow() must be called later | |
41 | wxControlContainerBase() | |
42 | { | |
43 | m_winParent = NULL; | |
44 | ||
45 | // do accept focus initially, we'll stop doing it if/when any children | |
46 | // are added | |
47 | m_acceptsFocus = true; | |
c7bfb76a JS |
48 | m_inSetFocus = false; |
49 | m_winLastFocused = NULL; | |
80332672 | 50 | } |
c7bfb76a | 51 | virtual ~wxControlContainerBase() {} |
80332672 VZ |
52 | |
53 | void SetContainerWindow(wxWindow *winParent) | |
54 | { | |
9a83f860 | 55 | wxASSERT_MSG( !m_winParent, wxT("shouldn't be called twice") ); |
80332672 VZ |
56 | |
57 | m_winParent = winParent; | |
58 | } | |
59 | ||
c7bfb76a JS |
60 | // should be called from SetFocus(), returns false if we did nothing with |
61 | // the focus and the default processing should take place | |
62 | bool DoSetFocus(); | |
63 | ||
80332672 VZ |
64 | // should be called when we decide that we should [stop] accepting focus |
65 | void SetCanFocus(bool acceptsFocus); | |
66 | ||
67 | // returns whether we should accept focus ourselves or not | |
68 | bool AcceptsFocus() const { return m_acceptsFocus; } | |
69 | ||
edc09871 VZ |
70 | // returns whether we or one of our children accepts focus: we always do |
71 | // because if we don't have any focusable children it probably means that | |
72 | // we're not being used as a container at all (think of wxGrid or generic | |
73 | // wxListCtrl) and so should get focus for ourselves | |
74 | bool AcceptsFocusRecursively() const { return true; } | |
75 | ||
21bf81db VZ |
76 | // this is used to determine whether we can accept focus when Tab or |
77 | // another navigation key is pressed -- we alsways can, for the same reason | |
78 | // as mentioned above for AcceptsFocusRecursively() | |
79 | bool AcceptsFocusFromKeyboard() const { return true; } | |
80 | ||
00ff24c8 RR |
81 | // Call this when the number of children of the window changes. |
82 | // If we have any children, this panel (used just as container for | |
83 | // them) shouldn't get focus for itself. | |
edc09871 | 84 | void UpdateCanFocus() { SetCanFocus(!HasAnyFocusableChildren()); } |
80332672 VZ |
85 | |
86 | protected: | |
c7bfb76a JS |
87 | // set the focus to the child which had it the last time |
88 | virtual bool SetFocusToChild(); | |
89 | ||
edc09871 VZ |
90 | // return true if we have any children accepting focus |
91 | bool HasAnyFocusableChildren() const; | |
80332672 | 92 | |
80332672 VZ |
93 | // the parent window we manage the children for |
94 | wxWindow *m_winParent; | |
95 | ||
1c1ad005 JS |
96 | // the child which had the focus last time this panel was activated |
97 | wxWindow *m_winLastFocused; | |
98 | ||
bf0e8244 | 99 | private: |
80332672 VZ |
100 | // value returned by AcceptsFocus(), should be changed using SetCanFocus() |
101 | // only | |
102 | bool m_acceptsFocus; | |
c7bfb76a JS |
103 | |
104 | // a guard against infinite recursion | |
105 | bool m_inSetFocus; | |
80332672 VZ |
106 | }; |
107 | ||
4d98817c VZ |
108 | #ifdef wxHAS_NATIVE_TAB_TRAVERSAL |
109 | ||
110 | // ---------------------------------------------------------------------------- | |
111 | // wxControlContainer for native TAB navigation | |
112 | // ---------------------------------------------------------------------------- | |
113 | ||
114 | // this must be a real class as we forward-declare it elsewhere | |
115 | class WXDLLIMPEXP_CORE wxControlContainer : public wxControlContainerBase | |
116 | { | |
117 | protected: | |
118 | // set the focus to the child which had it the last time | |
119 | virtual bool SetFocusToChild(); | |
120 | }; | |
121 | ||
122 | #else // !wxHAS_NATIVE_TAB_TRAVERSAL | |
123 | ||
4d98817c VZ |
124 | // ---------------------------------------------------------------------------- |
125 | // wxControlContainer for TAB navigation implemented in wx itself | |
126 | // ---------------------------------------------------------------------------- | |
127 | ||
128 | class WXDLLIMPEXP_CORE wxControlContainer : public wxControlContainerBase | |
129 | { | |
130 | public: | |
131 | // default ctor, SetContainerWindow() must be called later | |
132 | wxControlContainer(); | |
133 | ||
134 | // the methods to be called from the window event handlers | |
135 | void HandleOnNavigationKey(wxNavigationKeyEvent& event); | |
136 | void HandleOnFocus(wxFocusEvent& event); | |
137 | void HandleOnWindowDestroy(wxWindowBase *child); | |
138 | ||
139 | // called from OnChildFocus() handler, i.e. when one of our (grand) | |
140 | // children gets the focus | |
141 | void SetLastFocus(wxWindow *win); | |
142 | ||
143 | protected: | |
144 | ||
145 | wxDECLARE_NO_COPY_CLASS(wxControlContainer); | |
146 | }; | |
147 | ||
148 | #endif // wxHAS_NATIVE_TAB_TRAVERSAL/!wxHAS_NATIVE_TAB_TRAVERSAL | |
149 | ||
150 | // this function is for wxWidgets internal use only | |
151 | extern bool wxSetFocusToChild(wxWindow *win, wxWindow **child); | |
152 | ||
153 | // ---------------------------------------------------------------------------- | |
154 | // wxNavigationEnabled: Derive from this class to support keyboard navigation | |
155 | // among window children in a wxWindow-derived class. The details of this class | |
156 | // don't matter, you just need to derive from it to make navigation work. | |
157 | // ---------------------------------------------------------------------------- | |
158 | ||
159 | // The template parameter W must be a wxWindow-derived class. | |
160 | template <class W> | |
161 | class wxNavigationEnabled : public W | |
162 | { | |
163 | public: | |
164 | typedef W BaseWindowClass; | |
165 | ||
166 | wxNavigationEnabled() | |
167 | { | |
168 | m_container.SetContainerWindow(this); | |
169 | ||
170 | #ifndef wxHAS_NATIVE_TAB_TRAVERSAL | |
1f6831ea | 171 | BaseWindowClass::Connect(wxEVT_NAVIGATION_KEY, |
4d98817c VZ |
172 | wxNavigationKeyEventHandler(wxNavigationEnabled::OnNavigationKey)); |
173 | ||
1f6831ea | 174 | BaseWindowClass::Connect(wxEVT_SET_FOCUS, |
4d98817c VZ |
175 | wxFocusEventHandler(wxNavigationEnabled::OnFocus)); |
176 | ||
1f6831ea | 177 | BaseWindowClass::Connect(wxEVT_CHILD_FOCUS, |
4d98817c VZ |
178 | wxChildFocusEventHandler(wxNavigationEnabled::OnChildFocus)); |
179 | #endif // !wxHAS_NATIVE_TAB_TRAVERSAL | |
180 | } | |
181 | ||
182 | virtual bool AcceptsFocus() const | |
183 | { | |
184 | return m_container.AcceptsFocus(); | |
185 | } | |
186 | ||
187 | virtual bool AcceptsFocusRecursively() const | |
188 | { | |
189 | return m_container.AcceptsFocusRecursively(); | |
190 | } | |
191 | ||
192 | virtual bool AcceptsFocusFromKeyboard() const | |
193 | { | |
194 | return m_container.AcceptsFocusFromKeyboard(); | |
195 | } | |
196 | ||
197 | virtual void AddChild(wxWindowBase *child) | |
198 | { | |
199 | BaseWindowClass::AddChild(child); | |
200 | ||
201 | m_container.UpdateCanFocus(); | |
202 | } | |
203 | ||
204 | virtual void RemoveChild(wxWindowBase *child) | |
205 | { | |
206 | #ifndef wxHAS_NATIVE_TAB_TRAVERSAL | |
207 | m_container.HandleOnWindowDestroy(child); | |
208 | #endif // !wxHAS_NATIVE_TAB_TRAVERSAL | |
209 | ||
210 | BaseWindowClass::RemoveChild(child); | |
211 | ||
212 | m_container.UpdateCanFocus(); | |
213 | } | |
214 | ||
215 | virtual void SetFocus() | |
216 | { | |
217 | if ( !m_container.DoSetFocus() ) | |
218 | BaseWindowClass::SetFocus(); | |
219 | } | |
220 | ||
221 | void SetFocusIgnoringChildren() | |
222 | { | |
223 | BaseWindowClass::SetFocus(); | |
224 | } | |
225 | ||
226 | void AcceptFocus(bool acceptFocus) | |
227 | { | |
228 | m_container.SetCanFocus(acceptFocus); | |
229 | } | |
230 | ||
231 | protected: | |
232 | #ifndef wxHAS_NATIVE_TAB_TRAVERSAL | |
233 | void OnNavigationKey(wxNavigationKeyEvent& event) | |
234 | { | |
235 | m_container.HandleOnNavigationKey(event); | |
236 | } | |
237 | ||
238 | void OnFocus(wxFocusEvent& event) | |
239 | { | |
240 | m_container.HandleOnFocus(event); | |
241 | } | |
242 | ||
243 | void OnChildFocus(wxChildFocusEvent& event) | |
244 | { | |
245 | m_container.SetLastFocus(event.GetWindow()); | |
246 | event.Skip(); | |
247 | } | |
248 | #endif // !wxHAS_NATIVE_TAB_TRAVERSAL | |
249 | ||
250 | wxControlContainer m_container; | |
251 | ||
252 | ||
253 | wxDECLARE_NO_COPY_TEMPLATE_CLASS(wxNavigationEnabled, W); | |
254 | }; | |
255 | ||
256 | // ---------------------------------------------------------------------------- | |
257 | // Compatibility macros from now on, do NOT use them and preferably do not even | |
258 | // look at them. | |
259 | // ---------------------------------------------------------------------------- | |
260 | ||
261 | #ifdef WXWIN_COMPATIBILITY_2_8 | |
262 | ||
80332672 VZ |
263 | // common part of WX_DECLARE_CONTROL_CONTAINER in the native and generic cases, |
264 | // it should be used in the wxWindow-derived class declaration | |
265 | #define WX_DECLARE_CONTROL_CONTAINER_BASE() \ | |
266 | public: \ | |
267 | virtual bool AcceptsFocus() const; \ | |
edc09871 | 268 | virtual bool AcceptsFocusRecursively() const; \ |
21bf81db | 269 | virtual bool AcceptsFocusFromKeyboard() const; \ |
80332672 VZ |
270 | virtual void AddChild(wxWindowBase *child); \ |
271 | virtual void RemoveChild(wxWindowBase *child); \ | |
c7bfb76a | 272 | virtual void SetFocus(); \ |
80332672 VZ |
273 | void SetFocusIgnoringChildren(); \ |
274 | void AcceptFocus(bool acceptFocus) \ | |
275 | { \ | |
276 | m_container.SetCanFocus(acceptFocus); \ | |
277 | } \ | |
278 | \ | |
279 | protected: \ | |
280 | wxControlContainer m_container | |
281 | ||
282 | // this macro must be used in the derived class ctor | |
283 | #define WX_INIT_CONTROL_CONTAINER() \ | |
284 | m_container.SetContainerWindow(this) | |
285 | ||
286 | // common part of WX_DELEGATE_TO_CONTROL_CONTAINER in the native and generic | |
287 | // cases, must be used in the wxWindow-derived class implementation | |
288 | #define WX_DELEGATE_TO_CONTROL_CONTAINER_BASE(classname, basename) \ | |
289 | void classname::AddChild(wxWindowBase *child) \ | |
290 | { \ | |
291 | basename::AddChild(child); \ | |
292 | \ | |
293 | m_container.UpdateCanFocus(); \ | |
294 | } \ | |
295 | \ | |
edc09871 VZ |
296 | bool classname::AcceptsFocusRecursively() const \ |
297 | { \ | |
298 | return m_container.AcceptsFocusRecursively(); \ | |
299 | } \ | |
300 | \ | |
c7bfb76a JS |
301 | void classname::SetFocus() \ |
302 | { \ | |
303 | if ( !m_container.DoSetFocus() ) \ | |
304 | basename::SetFocus(); \ | |
305 | } \ | |
306 | \ | |
80332672 VZ |
307 | bool classname::AcceptsFocus() const \ |
308 | { \ | |
309 | return m_container.AcceptsFocus(); \ | |
21bf81db VZ |
310 | } \ |
311 | \ | |
312 | bool classname::AcceptsFocusFromKeyboard() const \ | |
313 | { \ | |
314 | return m_container.AcceptsFocusFromKeyboard(); \ | |
80332672 VZ |
315 | } |
316 | ||
de160b06 | 317 | |
4d98817c | 318 | #ifdef wxHAS_NATIVE_TAB_TRAVERSAL |
de160b06 | 319 | |
de160b06 | 320 | #define WX_EVENT_TABLE_CONTROL_CONTAINER(classname) |
80332672 VZ |
321 | |
322 | #define WX_DECLARE_CONTROL_CONTAINER WX_DECLARE_CONTROL_CONTAINER_BASE | |
323 | ||
324 | #define WX_DELEGATE_TO_CONTROL_CONTAINER(classname, basename) \ | |
325 | WX_DELEGATE_TO_CONTROL_CONTAINER_BASE(classname, basename) \ | |
326 | \ | |
327 | void classname::RemoveChild(wxWindowBase *child) \ | |
328 | { \ | |
329 | basename::RemoveChild(child); \ | |
330 | \ | |
331 | m_container.UpdateCanFocus(); \ | |
332 | } \ | |
333 | \ | |
334 | void classname::SetFocusIgnoringChildren() \ | |
335 | { \ | |
00ff24c8 | 336 | basename::SetFocus(); \ |
80332672 | 337 | } |
de160b06 VZ |
338 | |
339 | #else // !wxHAS_NATIVE_TAB_TRAVERSAL | |
340 | ||
456bc6d9 | 341 | // declare the methods to be forwarded |
d1cd787b VZ |
342 | #define WX_DECLARE_CONTROL_CONTAINER() \ |
343 | WX_DECLARE_CONTROL_CONTAINER_BASE(); \ | |
344 | \ | |
345 | public: \ | |
346 | void OnNavigationKey(wxNavigationKeyEvent& event); \ | |
347 | void OnFocus(wxFocusEvent& event); \ | |
c7bfb76a | 348 | virtual void OnChildFocus(wxChildFocusEvent& event) |
456bc6d9 VZ |
349 | |
350 | // implement the event table entries for wxControlContainer | |
351 | #define WX_EVENT_TABLE_CONTROL_CONTAINER(classname) \ | |
352 | EVT_SET_FOCUS(classname::OnFocus) \ | |
353 | EVT_CHILD_FOCUS(classname::OnChildFocus) \ | |
354 | EVT_NAVIGATION_KEY(classname::OnNavigationKey) | |
355 | ||
356 | // implement the methods forwarding to the wxControlContainer | |
80332672 VZ |
357 | #define WX_DELEGATE_TO_CONTROL_CONTAINER(classname, basename) \ |
358 | WX_DELEGATE_TO_CONTROL_CONTAINER_BASE(classname, basename) \ | |
359 | \ | |
360 | void classname::RemoveChild(wxWindowBase *child) \ | |
361 | { \ | |
362 | m_container.HandleOnWindowDestroy(child); \ | |
363 | \ | |
364 | basename::RemoveChild(child); \ | |
365 | \ | |
366 | m_container.UpdateCanFocus(); \ | |
367 | } \ | |
368 | \ | |
369 | void classname::OnNavigationKey( wxNavigationKeyEvent& event ) \ | |
370 | { \ | |
371 | m_container.HandleOnNavigationKey(event); \ | |
372 | } \ | |
373 | \ | |
80332672 VZ |
374 | void classname::SetFocusIgnoringChildren() \ |
375 | { \ | |
376 | basename::SetFocus(); \ | |
377 | } \ | |
378 | \ | |
379 | void classname::OnChildFocus(wxChildFocusEvent& event) \ | |
380 | { \ | |
381 | m_container.SetLastFocus(event.GetWindow()); \ | |
57c5c10f | 382 | event.Skip(); \ |
80332672 VZ |
383 | } \ |
384 | \ | |
385 | void classname::OnFocus(wxFocusEvent& event) \ | |
386 | { \ | |
387 | m_container.HandleOnFocus(event); \ | |
1c1ad005 | 388 | } |
456bc6d9 | 389 | |
de160b06 | 390 | #endif // wxHAS_NATIVE_TAB_TRAVERSAL/!wxHAS_NATIVE_TAB_TRAVERSAL |
456bc6d9 | 391 | |
4d98817c | 392 | #endif // WXWIN_COMPATIBILITY_2_8 |
c7bfb76a | 393 | |
456bc6d9 | 394 | #endif // _WX_CONTAINR_H_ |