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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 | ||
e68b7b36 VZ |
45 | // By default, we accept focus ourselves. |
46 | m_acceptsFocusSelf = true; | |
47 | ||
48 | // But we don't have any children accepting it yet. | |
49 | m_acceptsFocusChildren = false; | |
50 | ||
c7bfb76a JS |
51 | m_inSetFocus = false; |
52 | m_winLastFocused = NULL; | |
80332672 | 53 | } |
c7bfb76a | 54 | virtual ~wxControlContainerBase() {} |
80332672 VZ |
55 | |
56 | void SetContainerWindow(wxWindow *winParent) | |
57 | { | |
9a83f860 | 58 | wxASSERT_MSG( !m_winParent, wxT("shouldn't be called twice") ); |
80332672 VZ |
59 | |
60 | m_winParent = winParent; | |
61 | } | |
62 | ||
e68b7b36 VZ |
63 | // This can be called by the window to indicate that it never wants to have |
64 | // the focus for itself. | |
65 | void DisableSelfFocus() { m_acceptsFocusSelf = false; } | |
66 | ||
c7bfb76a JS |
67 | // should be called from SetFocus(), returns false if we did nothing with |
68 | // the focus and the default processing should take place | |
69 | bool DoSetFocus(); | |
70 | ||
80332672 | 71 | // returns whether we should accept focus ourselves or not |
e68b7b36 | 72 | bool AcceptsFocus() const { return m_acceptsFocusSelf; } |
80332672 | 73 | |
e68b7b36 VZ |
74 | // Returns whether we or one of our children accepts focus. |
75 | bool AcceptsFocusRecursively() const | |
861bdae4 | 76 | { return m_acceptsFocusSelf || m_acceptsFocusChildren; } |
edc09871 | 77 | |
e68b7b36 VZ |
78 | // We accept focus from keyboard if we accept it at all. |
79 | bool AcceptsFocusFromKeyboard() const { return AcceptsFocusRecursively(); } | |
21bf81db | 80 | |
00ff24c8 | 81 | // Call this when the number of children of the window changes. |
e68b7b36 VZ |
82 | // |
83 | // Returns true if we have any focusable children, false otherwise. | |
84 | bool UpdateCanFocusChildren(); | |
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: |
e68b7b36 VZ |
100 | // Indicates whether the associated window can ever have focus itself. |
101 | // | |
102 | // Usually this is the case, e.g. a wxPanel can be used either as a | |
103 | // container for its children or just as a normal window which can be | |
104 | // focused. But sometimes, e.g. for wxStaticBox, we can never have focus | |
105 | // ourselves and can only get it if we have any focusable children. | |
106 | bool m_acceptsFocusSelf; | |
107 | ||
108 | // Cached value remembering whether we have any children accepting focus. | |
109 | bool m_acceptsFocusChildren; | |
c7bfb76a JS |
110 | |
111 | // a guard against infinite recursion | |
112 | bool m_inSetFocus; | |
80332672 VZ |
113 | }; |
114 | ||
4d98817c VZ |
115 | #ifdef wxHAS_NATIVE_TAB_TRAVERSAL |
116 | ||
117 | // ---------------------------------------------------------------------------- | |
118 | // wxControlContainer for native TAB navigation | |
119 | // ---------------------------------------------------------------------------- | |
120 | ||
121 | // this must be a real class as we forward-declare it elsewhere | |
122 | class WXDLLIMPEXP_CORE wxControlContainer : public wxControlContainerBase | |
123 | { | |
124 | protected: | |
125 | // set the focus to the child which had it the last time | |
126 | virtual bool SetFocusToChild(); | |
127 | }; | |
128 | ||
129 | #else // !wxHAS_NATIVE_TAB_TRAVERSAL | |
130 | ||
4d98817c VZ |
131 | // ---------------------------------------------------------------------------- |
132 | // wxControlContainer for TAB navigation implemented in wx itself | |
133 | // ---------------------------------------------------------------------------- | |
134 | ||
135 | class WXDLLIMPEXP_CORE wxControlContainer : public wxControlContainerBase | |
136 | { | |
137 | public: | |
138 | // default ctor, SetContainerWindow() must be called later | |
139 | wxControlContainer(); | |
140 | ||
141 | // the methods to be called from the window event handlers | |
142 | void HandleOnNavigationKey(wxNavigationKeyEvent& event); | |
143 | void HandleOnFocus(wxFocusEvent& event); | |
144 | void HandleOnWindowDestroy(wxWindowBase *child); | |
145 | ||
146 | // called from OnChildFocus() handler, i.e. when one of our (grand) | |
147 | // children gets the focus | |
148 | void SetLastFocus(wxWindow *win); | |
149 | ||
150 | protected: | |
151 | ||
152 | wxDECLARE_NO_COPY_CLASS(wxControlContainer); | |
153 | }; | |
154 | ||
155 | #endif // wxHAS_NATIVE_TAB_TRAVERSAL/!wxHAS_NATIVE_TAB_TRAVERSAL | |
156 | ||
157 | // this function is for wxWidgets internal use only | |
31af22fa | 158 | extern WXDLLIMPEXP_CORE bool wxSetFocusToChild(wxWindow *win, wxWindow **child); |
4d98817c VZ |
159 | |
160 | // ---------------------------------------------------------------------------- | |
161 | // wxNavigationEnabled: Derive from this class to support keyboard navigation | |
162 | // among window children in a wxWindow-derived class. The details of this class | |
163 | // don't matter, you just need to derive from it to make navigation work. | |
164 | // ---------------------------------------------------------------------------- | |
165 | ||
166 | // The template parameter W must be a wxWindow-derived class. | |
167 | template <class W> | |
168 | class wxNavigationEnabled : public W | |
169 | { | |
170 | public: | |
171 | typedef W BaseWindowClass; | |
172 | ||
173 | wxNavigationEnabled() | |
174 | { | |
175 | m_container.SetContainerWindow(this); | |
176 | ||
177 | #ifndef wxHAS_NATIVE_TAB_TRAVERSAL | |
1f6831ea | 178 | BaseWindowClass::Connect(wxEVT_NAVIGATION_KEY, |
4d98817c VZ |
179 | wxNavigationKeyEventHandler(wxNavigationEnabled::OnNavigationKey)); |
180 | ||
1f6831ea | 181 | BaseWindowClass::Connect(wxEVT_SET_FOCUS, |
4d98817c VZ |
182 | wxFocusEventHandler(wxNavigationEnabled::OnFocus)); |
183 | ||
1f6831ea | 184 | BaseWindowClass::Connect(wxEVT_CHILD_FOCUS, |
4d98817c VZ |
185 | wxChildFocusEventHandler(wxNavigationEnabled::OnChildFocus)); |
186 | #endif // !wxHAS_NATIVE_TAB_TRAVERSAL | |
187 | } | |
188 | ||
87381108 | 189 | WXDLLIMPEXP_INLINE_CORE virtual bool AcceptsFocus() const |
4d98817c VZ |
190 | { |
191 | return m_container.AcceptsFocus(); | |
192 | } | |
193 | ||
87381108 | 194 | WXDLLIMPEXP_INLINE_CORE virtual bool AcceptsFocusRecursively() const |
4d98817c VZ |
195 | { |
196 | return m_container.AcceptsFocusRecursively(); | |
197 | } | |
198 | ||
87381108 | 199 | WXDLLIMPEXP_INLINE_CORE virtual bool AcceptsFocusFromKeyboard() const |
4d98817c VZ |
200 | { |
201 | return m_container.AcceptsFocusFromKeyboard(); | |
202 | } | |
203 | ||
87381108 | 204 | WXDLLIMPEXP_INLINE_CORE virtual void AddChild(wxWindowBase *child) |
4d98817c VZ |
205 | { |
206 | BaseWindowClass::AddChild(child); | |
207 | ||
861bdae4 VZ |
208 | if ( m_container.UpdateCanFocusChildren() ) |
209 | { | |
210 | // Under MSW we must have wxTAB_TRAVERSAL style for TAB navigation | |
211 | // to work. | |
212 | if ( !BaseWindowClass::HasFlag(wxTAB_TRAVERSAL) ) | |
213 | BaseWindowClass::ToggleWindowStyle(wxTAB_TRAVERSAL); | |
214 | } | |
4d98817c VZ |
215 | } |
216 | ||
87381108 | 217 | WXDLLIMPEXP_INLINE_CORE virtual void RemoveChild(wxWindowBase *child) |
4d98817c VZ |
218 | { |
219 | #ifndef wxHAS_NATIVE_TAB_TRAVERSAL | |
220 | m_container.HandleOnWindowDestroy(child); | |
221 | #endif // !wxHAS_NATIVE_TAB_TRAVERSAL | |
222 | ||
223 | BaseWindowClass::RemoveChild(child); | |
224 | ||
861bdae4 VZ |
225 | // We could reset wxTAB_TRAVERSAL here but it doesn't seem to do any |
226 | // harm to keep it. | |
e68b7b36 | 227 | m_container.UpdateCanFocusChildren(); |
4d98817c VZ |
228 | } |
229 | ||
87381108 | 230 | WXDLLIMPEXP_INLINE_CORE virtual void SetFocus() |
4d98817c VZ |
231 | { |
232 | if ( !m_container.DoSetFocus() ) | |
233 | BaseWindowClass::SetFocus(); | |
234 | } | |
235 | ||
236 | void SetFocusIgnoringChildren() | |
237 | { | |
238 | BaseWindowClass::SetFocus(); | |
239 | } | |
240 | ||
4d98817c VZ |
241 | protected: |
242 | #ifndef wxHAS_NATIVE_TAB_TRAVERSAL | |
243 | void OnNavigationKey(wxNavigationKeyEvent& event) | |
244 | { | |
245 | m_container.HandleOnNavigationKey(event); | |
246 | } | |
247 | ||
248 | void OnFocus(wxFocusEvent& event) | |
249 | { | |
250 | m_container.HandleOnFocus(event); | |
251 | } | |
252 | ||
253 | void OnChildFocus(wxChildFocusEvent& event) | |
254 | { | |
255 | m_container.SetLastFocus(event.GetWindow()); | |
256 | event.Skip(); | |
257 | } | |
258 | #endif // !wxHAS_NATIVE_TAB_TRAVERSAL | |
259 | ||
260 | wxControlContainer m_container; | |
261 | ||
262 | ||
263 | wxDECLARE_NO_COPY_TEMPLATE_CLASS(wxNavigationEnabled, W); | |
264 | }; | |
265 | ||
266 | // ---------------------------------------------------------------------------- | |
267 | // Compatibility macros from now on, do NOT use them and preferably do not even | |
268 | // look at them. | |
269 | // ---------------------------------------------------------------------------- | |
270 | ||
7bc57fd9 | 271 | #if WXWIN_COMPATIBILITY_2_8 |
4d98817c | 272 | |
80332672 VZ |
273 | // common part of WX_DECLARE_CONTROL_CONTAINER in the native and generic cases, |
274 | // it should be used in the wxWindow-derived class declaration | |
275 | #define WX_DECLARE_CONTROL_CONTAINER_BASE() \ | |
276 | public: \ | |
277 | virtual bool AcceptsFocus() const; \ | |
edc09871 | 278 | virtual bool AcceptsFocusRecursively() const; \ |
21bf81db | 279 | virtual bool AcceptsFocusFromKeyboard() const; \ |
80332672 VZ |
280 | virtual void AddChild(wxWindowBase *child); \ |
281 | virtual void RemoveChild(wxWindowBase *child); \ | |
c7bfb76a | 282 | virtual void SetFocus(); \ |
80332672 | 283 | void SetFocusIgnoringChildren(); \ |
80332672 VZ |
284 | \ |
285 | protected: \ | |
286 | wxControlContainer m_container | |
287 | ||
288 | // this macro must be used in the derived class ctor | |
289 | #define WX_INIT_CONTROL_CONTAINER() \ | |
290 | m_container.SetContainerWindow(this) | |
291 | ||
292 | // common part of WX_DELEGATE_TO_CONTROL_CONTAINER in the native and generic | |
293 | // cases, must be used in the wxWindow-derived class implementation | |
294 | #define WX_DELEGATE_TO_CONTROL_CONTAINER_BASE(classname, basename) \ | |
295 | void classname::AddChild(wxWindowBase *child) \ | |
296 | { \ | |
297 | basename::AddChild(child); \ | |
298 | \ | |
e68b7b36 | 299 | m_container.UpdateCanFocusChildren(); \ |
80332672 VZ |
300 | } \ |
301 | \ | |
edc09871 VZ |
302 | bool classname::AcceptsFocusRecursively() const \ |
303 | { \ | |
304 | return m_container.AcceptsFocusRecursively(); \ | |
305 | } \ | |
306 | \ | |
c7bfb76a JS |
307 | void classname::SetFocus() \ |
308 | { \ | |
309 | if ( !m_container.DoSetFocus() ) \ | |
310 | basename::SetFocus(); \ | |
311 | } \ | |
312 | \ | |
80332672 VZ |
313 | bool classname::AcceptsFocus() const \ |
314 | { \ | |
315 | return m_container.AcceptsFocus(); \ | |
21bf81db VZ |
316 | } \ |
317 | \ | |
318 | bool classname::AcceptsFocusFromKeyboard() const \ | |
319 | { \ | |
320 | return m_container.AcceptsFocusFromKeyboard(); \ | |
80332672 VZ |
321 | } |
322 | ||
de160b06 | 323 | |
4d98817c | 324 | #ifdef wxHAS_NATIVE_TAB_TRAVERSAL |
de160b06 | 325 | |
de160b06 | 326 | #define WX_EVENT_TABLE_CONTROL_CONTAINER(classname) |
80332672 VZ |
327 | |
328 | #define WX_DECLARE_CONTROL_CONTAINER WX_DECLARE_CONTROL_CONTAINER_BASE | |
329 | ||
330 | #define WX_DELEGATE_TO_CONTROL_CONTAINER(classname, basename) \ | |
331 | WX_DELEGATE_TO_CONTROL_CONTAINER_BASE(classname, basename) \ | |
332 | \ | |
333 | void classname::RemoveChild(wxWindowBase *child) \ | |
334 | { \ | |
335 | basename::RemoveChild(child); \ | |
336 | \ | |
e68b7b36 | 337 | m_container.UpdateCanFocusChildren(); \ |
80332672 VZ |
338 | } \ |
339 | \ | |
340 | void classname::SetFocusIgnoringChildren() \ | |
341 | { \ | |
00ff24c8 | 342 | basename::SetFocus(); \ |
80332672 | 343 | } |
de160b06 VZ |
344 | |
345 | #else // !wxHAS_NATIVE_TAB_TRAVERSAL | |
346 | ||
456bc6d9 | 347 | // declare the methods to be forwarded |
d1cd787b VZ |
348 | #define WX_DECLARE_CONTROL_CONTAINER() \ |
349 | WX_DECLARE_CONTROL_CONTAINER_BASE(); \ | |
350 | \ | |
351 | public: \ | |
352 | void OnNavigationKey(wxNavigationKeyEvent& event); \ | |
353 | void OnFocus(wxFocusEvent& event); \ | |
c7bfb76a | 354 | virtual void OnChildFocus(wxChildFocusEvent& event) |
456bc6d9 VZ |
355 | |
356 | // implement the event table entries for wxControlContainer | |
357 | #define WX_EVENT_TABLE_CONTROL_CONTAINER(classname) \ | |
358 | EVT_SET_FOCUS(classname::OnFocus) \ | |
359 | EVT_CHILD_FOCUS(classname::OnChildFocus) \ | |
360 | EVT_NAVIGATION_KEY(classname::OnNavigationKey) | |
361 | ||
362 | // implement the methods forwarding to the wxControlContainer | |
80332672 VZ |
363 | #define WX_DELEGATE_TO_CONTROL_CONTAINER(classname, basename) \ |
364 | WX_DELEGATE_TO_CONTROL_CONTAINER_BASE(classname, basename) \ | |
365 | \ | |
366 | void classname::RemoveChild(wxWindowBase *child) \ | |
367 | { \ | |
368 | m_container.HandleOnWindowDestroy(child); \ | |
369 | \ | |
370 | basename::RemoveChild(child); \ | |
371 | \ | |
e68b7b36 | 372 | m_container.UpdateCanFocusChildren(); \ |
80332672 VZ |
373 | } \ |
374 | \ | |
375 | void classname::OnNavigationKey( wxNavigationKeyEvent& event ) \ | |
376 | { \ | |
377 | m_container.HandleOnNavigationKey(event); \ | |
378 | } \ | |
379 | \ | |
80332672 VZ |
380 | void classname::SetFocusIgnoringChildren() \ |
381 | { \ | |
382 | basename::SetFocus(); \ | |
383 | } \ | |
384 | \ | |
385 | void classname::OnChildFocus(wxChildFocusEvent& event) \ | |
386 | { \ | |
387 | m_container.SetLastFocus(event.GetWindow()); \ | |
57c5c10f | 388 | event.Skip(); \ |
80332672 VZ |
389 | } \ |
390 | \ | |
391 | void classname::OnFocus(wxFocusEvent& event) \ | |
392 | { \ | |
393 | m_container.HandleOnFocus(event); \ | |
1c1ad005 | 394 | } |
456bc6d9 | 395 | |
de160b06 | 396 | #endif // wxHAS_NATIVE_TAB_TRAVERSAL/!wxHAS_NATIVE_TAB_TRAVERSAL |
456bc6d9 | 397 | |
4d98817c | 398 | #endif // WXWIN_COMPATIBILITY_2_8 |
c7bfb76a | 399 | |
456bc6d9 | 400 | #endif // _WX_CONTAINR_H_ |