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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: _cshelp.i | |
3 | // Purpose: Context sensitive help classes, and etc. | |
4 | // | |
5 | // Author: Robin Dunn | |
6 | // | |
7 | // Created: 28-July-2001 | |
8 | // RCS-ID: $Id$ | |
9 | // Copyright: (c) 2001 by Total Control Software | |
10 | // Licence: wxWindows license | |
11 | ///////////////////////////////////////////////////////////////////////////// | |
12 | ||
13 | // not a %module | |
14 | ||
15 | //--------------------------------------------------------------------------- | |
16 | %newgroup | |
17 | ||
18 | %{ | |
19 | %} | |
20 | ||
21 | //---------------------------------------------------------------------- | |
22 | ||
23 | %constant wxEventType wxEVT_HELP; | |
24 | %constant wxEventType wxEVT_DETAILED_HELP; | |
25 | ||
26 | ||
27 | %pythoncode { | |
28 | EVT_HELP = wx.PyEventBinder( wxEVT_HELP, 1) | |
29 | EVT_HELP_RANGE = wx.PyEventBinder( wxEVT_HELP, 2) | |
30 | EVT_DETAILED_HELP = wx.PyEventBinder( wxEVT_DETAILED_HELP, 1) | |
31 | EVT_DETAILED_HELP_RANGE = wx.PyEventBinder( wxEVT_DETAILED_HELP, 2) | |
32 | } | |
33 | ||
34 | //---------------------------------------------------------------------- | |
35 | ||
36 | DocStr(wxHelpEvent, | |
37 | "A help event is sent when the user has requested context-sensitive | |
38 | help. This can either be caused by the application requesting | |
39 | context-sensitive help mode via wx.ContextHelp, or (on MS Windows) by | |
40 | the system generating a WM_HELP message when the user pressed F1 or | |
41 | clicked on the query button in a dialog caption. | |
42 | ||
43 | A help event is sent to the window that the user clicked on, and is | |
44 | propagated up the window hierarchy until the event is processed or | |
45 | there are no more event handlers. The application should call | |
46 | event.GetId to check the identity of the clicked-on window, and then | |
47 | either show some suitable help or call event.Skip if the identifier is | |
48 | unrecognised. Calling Skip is important because it allows wxWindows to | |
49 | generate further events for ancestors of the clicked-on | |
50 | window. Otherwise it would be impossible to show help for container | |
51 | windows, since processing would stop after the first window found.", | |
52 | " | |
53 | ||
54 | Events | |
55 | ------- | |
56 | ============== ========================================= | |
57 | EVT_HELP Sent when the user has requested context- | |
58 | sensitive help. | |
59 | EVT_HELP_RANGE Allows to catch EVT_HELP for a range of IDs | |
60 | ============== ========================================= | |
61 | ||
62 | :see: `wx.ContextHelp`, `wx.ContextHelpButton` | |
63 | "); | |
64 | ||
65 | ||
66 | class wxHelpEvent : public wxCommandEvent | |
67 | { | |
68 | public: | |
69 | // how was this help event generated? | |
70 | enum Origin | |
71 | { | |
72 | Origin_Unknown, // unrecognized event source | |
73 | Origin_Keyboard, // event generated from F1 key press | |
74 | Origin_HelpButton // event from [?] button on the title bar (Windows) | |
75 | }; | |
76 | ||
77 | DocCtorStr( | |
78 | wxHelpEvent(wxEventType type = wxEVT_NULL, | |
79 | wxWindowID winid = 0, | |
80 | const wxPoint& pt = wxDefaultPosition, | |
81 | Origin origin = Origin_Unknown ), | |
82 | "", ""); | |
83 | ||
84 | ||
85 | DocDeclStr( | |
86 | const wxPoint , GetPosition() const, | |
87 | "Returns the left-click position of the mouse, in screen | |
88 | coordinates. This allows the application to position the help | |
89 | appropriately.", ""); | |
90 | ||
91 | DocDeclStr( | |
92 | void , SetPosition(const wxPoint& pos), | |
93 | "Sets the left-click position of the mouse, in screen coordinates.", ""); | |
94 | ||
95 | ||
96 | DocDeclStr( | |
97 | const wxString& , GetLink() const, | |
98 | "Get an optional link to further help", ""); | |
99 | ||
100 | DocDeclStr( | |
101 | void , SetLink(const wxString& link), | |
102 | "Set an optional link to further help", ""); | |
103 | ||
104 | ||
105 | DocDeclStr( | |
106 | const wxString& , GetTarget() const, | |
107 | "Get an optional target to display help in. E.g. a window specification", ""); | |
108 | ||
109 | DocDeclStr( | |
110 | void , SetTarget(const wxString& target), | |
111 | "Set an optional target to display help in. E.g. a window specification", ""); | |
112 | ||
113 | // optional indication of the event source | |
114 | DocDeclStr( | |
115 | Origin , GetOrigin() const, | |
116 | "Optiononal indication of the source of the event.", ""); | |
117 | ||
118 | DocDeclStr( | |
119 | void , SetOrigin(Origin origin), | |
120 | "", ""); | |
121 | ||
122 | %property(Link, GetLink, SetLink, doc="See `GetLink` and `SetLink`"); | |
123 | %property(Origin, GetOrigin, SetOrigin, doc="See `GetOrigin` and `SetOrigin`"); | |
124 | %property(Position, GetPosition, SetPosition, doc="See `GetPosition` and `SetPosition`"); | |
125 | %property(Target, GetTarget, SetTarget, doc="See `GetTarget` and `SetTarget`"); | |
126 | }; | |
127 | ||
128 | //--------------------------------------------------------------------------- | |
129 | ||
130 | ||
131 | DocStr(wxContextHelp, | |
132 | "This class changes the cursor to a query and puts the application into | |
133 | a 'context-sensitive help mode'. When the user left-clicks on a window | |
134 | within the specified window, a ``EVT_HELP`` event is sent to that | |
135 | control, and the application may respond to it by popping up some | |
136 | help. | |
137 | ||
138 | There are a couple of ways to invoke this behaviour implicitly: | |
139 | ||
140 | * Use the wx.WS_EX_CONTEXTHELP extended style for a dialog or frame | |
141 | (Windows only). This will put a question mark in the titlebar, | |
142 | and Windows will put the application into context-sensitive help | |
143 | mode automatically, with further programming. | |
144 | ||
145 | * Create a `wx.ContextHelpButton`, whose predefined behaviour is | |
146 | to create a context help object. Normally you will write your | |
147 | application so that this button is only added to a dialog for | |
148 | non-Windows platforms (use ``wx.WS_EX_CONTEXTHELP`` on | |
149 | Windows). | |
150 | ||
151 | :see: `wx.ContextHelpButton` | |
152 | ", ""); | |
153 | ||
154 | MustHaveApp(wxContextHelp); | |
155 | ||
156 | class wxContextHelp : public wxObject { | |
157 | public: | |
158 | DocCtorStr( | |
159 | wxContextHelp(wxWindow* window = NULL, bool doNow = true), | |
160 | "Constructs a context help object, calling BeginContextHelp if doNow is | |
161 | true (the default). | |
162 | ||
163 | If window is None, the top window is used.", ""); | |
164 | ||
165 | ~wxContextHelp(); | |
166 | ||
167 | DocDeclStr( | |
168 | bool , BeginContextHelp(wxWindow* window = NULL), | |
169 | "Puts the application into context-sensitive help mode. window is the | |
170 | window which will be used to catch events; if NULL, the top window | |
171 | will be used. | |
172 | ||
173 | Returns true if the application was successfully put into | |
174 | context-sensitive help mode. This function only returns when the event | |
175 | loop has finished.", ""); | |
176 | ||
177 | DocDeclStr( | |
178 | bool , EndContextHelp(), | |
179 | "Ends context-sensitive help mode. Not normally called by the | |
180 | application.", ""); | |
181 | ||
182 | }; | |
183 | ||
184 | ||
185 | //---------------------------------------------------------------------- | |
186 | ||
187 | DocStr(wxContextHelpButton, | |
188 | "Instances of this class may be used to add a question mark button that | |
189 | when pressed, puts the application into context-help mode. It does | |
190 | this by creating a wx.ContextHelp object which itself generates a | |
191 | ``EVT_HELP`` event when the user clicks on a window. | |
192 | ||
193 | On Windows, you may add a question-mark icon to a dialog by use of the | |
194 | ``wx.DIALOG_EX_CONTEXTHELP`` extra style, but on other platforms you | |
195 | will have to add a button explicitly, usually next to OK, Cancel or | |
196 | similar buttons. | |
197 | ||
198 | :see: `wx.ContextHelp`, `wx.ContextHelpButton` | |
199 | ", ""); | |
200 | ||
201 | MustHaveApp(wxContextHelpButton); | |
202 | ||
203 | class wxContextHelpButton : public wxBitmapButton { | |
204 | public: | |
205 | %pythonAppend wxContextHelpButton "self._setOORInfo(self)" | |
206 | ||
207 | DocCtorStr( | |
208 | wxContextHelpButton(wxWindow* parent, wxWindowID id = wxID_CONTEXT_HELP, | |
209 | const wxPoint& pos = wxDefaultPosition, | |
210 | const wxSize& size = wxDefaultSize, | |
211 | long style = wxBU_AUTODRAW), | |
212 | "Constructor, creating and showing a context help button.", ""); | |
213 | }; | |
214 | ||
215 | ||
216 | //---------------------------------------------------------------------- | |
217 | ||
218 | DocStr(wxHelpProvider, | |
219 | "wx.HelpProvider is an abstract class used by a program | |
220 | implementing context-sensitive help to show the help text for the | |
221 | given window. | |
222 | ||
223 | The current help provider must be explicitly set by the | |
224 | application using wx.HelpProvider.Set().", ""); | |
225 | ||
226 | class wxHelpProvider | |
227 | { | |
228 | public: | |
229 | ||
230 | ~wxHelpProvider(); | |
231 | ||
232 | ||
233 | %disownarg( wxHelpProvider *helpProvider ); | |
234 | %newobject Set; | |
235 | DocDeclStr( | |
236 | static wxHelpProvider *, Set(wxHelpProvider *helpProvider), | |
237 | "Sset the current, application-wide help provider. Returns the previous | |
238 | one. Unlike some other classes, the help provider is not created on | |
239 | demand. This must be explicitly done by the application.", ""); | |
240 | %cleardisown( wxHelpProvider *helpProvider ); | |
241 | ||
242 | DocDeclStr( | |
243 | static wxHelpProvider *, Get(), | |
244 | "Return the current application-wide help provider.", ""); | |
245 | ||
246 | ||
247 | DocDeclStr( | |
248 | wxString , GetHelp(const wxWindow *window), | |
249 | "Gets the help string for this window. Its interpretation is dependent | |
250 | on the help provider except that empty string always means that no | |
251 | help is associated with the window.", ""); | |
252 | ||
253 | DocDeclStr( | |
254 | bool , ShowHelp(wxWindow *window), | |
255 | "Shows help for the given window. Uses GetHelp internally if | |
256 | applicable. Returns True if it was done, or False if no help was | |
257 | available for this window.", ""); | |
258 | ||
259 | DocDeclStr( | |
260 | virtual bool , ShowHelpAtPoint(wxWindowBase *window, | |
261 | const wxPoint& pt, | |
262 | wxHelpEvent::Origin origin), | |
263 | "Show help for the given window (uses window.GetHelpAtPoint() | |
264 | internally if applicable), return true if it was done or false if no | |
265 | help available for this window.", ""); | |
266 | ||
267 | ||
268 | ||
269 | DocDeclStr( | |
270 | void , AddHelp(wxWindow *window, const wxString& text), | |
271 | "Associates the text with the given window.", ""); | |
272 | ||
273 | DocDeclStrName( | |
274 | void , AddHelp(wxWindowID id, const wxString& text), | |
275 | "This version associates the given text with all windows with this | |
276 | id. May be used to set the same help string for all Cancel buttons in | |
277 | the application, for example.", "", | |
278 | AddHelpById); | |
279 | ||
280 | DocDeclStr( | |
281 | void , RemoveHelp(wxWindow* window), | |
282 | "Removes the association between the window pointer and the help | |
283 | text. This is called by the wx.Window destructor. Without this, the | |
284 | table of help strings will fill up and when window pointers are | |
285 | reused, the wrong help string will be found.", ""); | |
286 | ||
287 | ||
288 | %pythonPrepend Destroy "args[0].this.own(False)" | |
289 | %extend { void Destroy() { delete self; } } | |
290 | }; | |
291 | ||
292 | ||
293 | //---------------------------------------------------------------------- | |
294 | ||
295 | DocStr(wxSimpleHelpProvider, | |
296 | "wx.SimpleHelpProvider is an implementation of `wx.HelpProvider` which | |
297 | supports only plain text help strings, and shows the string associated | |
298 | with the control (if any) in a tooltip.", ""); | |
299 | ||
300 | class wxSimpleHelpProvider : public wxHelpProvider | |
301 | { | |
302 | public: | |
303 | wxSimpleHelpProvider(); | |
304 | }; | |
305 | ||
306 | ||
307 | //---------------------------------------------------------------------- | |
308 | ||
309 | // TODO: Add this once the wxHelpController is in wxPython... | |
310 | ||
311 | // class WXDLLEXPORT wxHelpControllerHelpProvider : public wxSimpleHelpProvider | |
312 | // { | |
313 | // public: | |
314 | // wxHelpControllerHelpProvider(wxHelpController* hc = NULL); | |
315 | // void SetHelpController(wxHelpController* hc); | |
316 | // wxHelpController* GetHelpController(); | |
317 | // }; | |
318 | ||
319 | ||
320 | ||
321 | ||
322 | //---------------------------------------------------------------------- | |
323 | //--------------------------------------------------------------------------- |