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Remove duplicated portability warning from wxShowEvent description.
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1/////////////////////////////////////////////////////////////////////////////
2// Name: control.h
e54c96f1 3// Purpose: interface of wxControl
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4// Author: wxWidgets team
5// RCS-ID: $Id$
526954c5 6// Licence: wxWindows licence
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7/////////////////////////////////////////////////////////////////////////////
8
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9/**
10 Flags used by wxControl::Ellipsize function.
11*/
12enum wxEllipsizeFlags
13{
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14 /// No special flags.
15 wxELLIPSIZE_FLAGS_NONE = 0,
16
17 /**
18 Take mnemonics into account when calculating the text width.
19
20 With this flag when calculating the size of the passed string,
21 mnemonics characters (see wxControl::SetLabel) will be automatically
22 reduced to a single character. This leads to correct calculations only
23 if the string passed to Ellipsize() will be used with
24 wxControl::SetLabel. If you don't want ampersand to be interpreted as
25 mnemonics (e.g. because you use wxControl::SetLabelText) then don't use
26 this flag.
27 */
28 wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS = 1,
29
30 /**
31 Expand tabs in spaces when calculating the text width.
32
33 This flag tells wxControl::Ellipsize() to calculate the width of tab
34 characters @c '\\t' as 6 spaces.
35 */
36 wxELLIPSIZE_FLAGS_EXPAND_TABS = 2,
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37
38 /// The default flags for wxControl::Ellipsize.
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39 wxELLIPSIZE_FLAGS_DEFAULT = wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS|
40 wxELLIPSIZE_FLAGS_EXPAND_TABS
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41};
42
43
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44/**
45 The different ellipsization modes supported by the
46 wxControl::Ellipsize function.
47*/
48enum wxEllipsizeMode
49{
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50 /// Don't ellipsize the text at all. @since 2.9.1
51 wxELLIPSIZE_NONE,
52
a78618b0 53 /// Put the ellipsis at the start of the string, if the string needs ellipsization.
5c87527c 54 wxELLIPSIZE_START,
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55
56 /// Put the ellipsis in the middle of the string, if the string needs ellipsization.
5c87527c 57 wxELLIPSIZE_MIDDLE,
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58
59 /// Put the ellipsis at the end of the string, if the string needs ellipsization.
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60 wxELLIPSIZE_END
61};
62
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63/**
64 @class wxControl
7c913512 65
cdbcf4c2 66 This is the base class for a control or "widget".
7c913512 67
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68 A control is generally a small window which processes user input and/or
69 displays one or more item of data.
7c913512 70
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71 @beginEventEmissionTable{wxClipboardTextEvent}
72 @event{EVT_TEXT_COPY(id, func)}
73 Some or all of the controls content was copied to the clipboard.
74 @event{EVT_TEXT_CUT(id, func)}
75 Some or all of the controls content was cut (i.e. copied and
76 deleted).
77 @event{EVT_TEXT_PASTE(id, func)}
78 Clipboard content was pasted into the control.
79 @endEventTable
80
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81 @library{wxcore}
82 @category{ctrl}
7c913512 83
e54c96f1 84 @see wxValidator
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85*/
86class wxControl : public wxWindow
87{
88public:
89 /**
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90 Simulates the effect of the user issuing a command to the item.
91
92 @see wxCommandEvent
23324ae1 93 */
b7e94bd7 94 virtual void Command(wxCommandEvent& event);
23324ae1 95
5c87527c 96 /**
32ee98eb 97 Returns the control's label, as it was passed to SetLabel().
5c87527c 98
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99 Note that the returned string may contains mnemonics ("&" characters) if they were
100 passed to the SetLabel() function; use GetLabelText() if they are undesired.
bd0812fe 101
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102 Also note that the returned string is always the string which was passed to
103 SetLabel() but may be different from the string passed to SetLabelText()
104 (since this last one escapes mnemonic characters).
23324ae1 105 */
328f5751 106 wxString GetLabel() const;
23324ae1 107
23324ae1 108 /**
bd0812fe 109 Returns the control's label without mnemonics.
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110
111 Note that because of the stripping of the mnemonics the returned string may differ
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112 from the string which was passed to SetLabel() but should always be the same which
113 was passed to SetLabelText().
23324ae1 114 */
4707b84c 115 wxString GetLabelText() const;
bd0812fe 116
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117 /**
118 Sets the control's label.
119
120 All "&" characters in the @a label are special and indicate that the
121 following character is a @e mnemonic for this control and can be used to
122 activate it from the keyboard (typically by using @e Alt key in
123 combination with it). To insert a literal ampersand character, you need
57ab6f23 124 to double it, i.e. use "&&". If this behaviour is undesirable, use
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125 SetLabelText() instead.
126 */
127 void SetLabel(const wxString& label);
128
129 /**
130 Sets the control's label to exactly the given string.
131
132 Unlike SetLabel(), this function shows exactly the @a text passed to it
133 in the control, without interpreting ampersands in it in any way.
134 Notice that it means that the control can't have any mnemonic defined
135 for it using this function.
136
137 @see EscapeMnemonics()
138 */
139 void SetLabelText(const wxString& text);
140
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141 // NB: when writing docs for the following function remember that Doxygen
142 // will always expand HTML entities (e.g. ") and thus we need to
143 // write e.g. "<" to have in the output the "<" string.
144
145 /**
146 Sets the controls label to a string using markup.
147
148 Simple markup supported by this function can be used to apply different
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149 fonts or colours to different parts of the control label when supported.
150 If markup is not supported by the control or platform, it is simply
151 stripped and SetLabel() is used with the resulting string.
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152
153 For example,
154 @code
155 wxStaticText *text;
156 ...
157 text->SetLabelMarkup("<b>&amp;Bed</b> &amp;mp; "
158 "<span foreground='red'>breakfast</span> "
159 "available <big>HERE</big>");
160 @endcode
161 would show the string using bold, red and big for the corresponding
162 words under wxGTK but will simply show the string "Bed &amp; breakfast
163 available HERE" on the other platforms. In any case, the "B" of "Bed"
164 will be underlined to indicate that it can be used as a mnemonic for
165 this control.
166
167 The supported tags are:
168 <TABLE>
169 <TR>
170 <TD><b>Tag</b></TD>
171 <TD><b>Description</b></TD>
172 </TR>
173 <TR>
174 <TD>&lt;b&gt;</TD>
175 <TD>bold text</TD>
176 </TR>
177 <TR>
178 <TD>&lt;big&gt;</TD>
179 <TD>bigger text</TD>
180 </TR>
181 <TR>
182 <TD>&lt;i&gt;</TD>
183 <TD>italic text</TD>
184 </TR>
185 <TR>
186 <TD>&lt;s&gt;</TD>
187 <TD>strike-through text</TD>
188 </TR>
189 <TR>
190 <TD>&lt;small&gt;</TD>
191 <TD>smaller text</TD>
192 </TR>
193 <TR>
194 <TD>&lt;tt&gt;</TD>
195 <TD>monospaced text</TD>
196 </TR>
197 <TR>
198 <TD>&lt;u&gt;</TD>
199 <TD>underlined text</TD>
200 </TR>
201 <TR>
202 <TD>&lt;span&gt;</TD>
203 <TD>generic formatter tag, see the table below for supported
204 attributes.
205 </TD>
206 </TR>
207 </TABLE>
208
209 Supported @c &lt;span&gt; attributes:
210 <TABLE>
211 <TR>
212 <TD><b>Name</b></TD>
213 <TD><b>Description</b></TD>
214 </TR>
215 <TR>
216 <TD>foreground, fgcolor, color</TD>
217 <TD>Foreground text colour, can be a name or RGB value.</TD>
218 </TR>
219 <TR>
220 <TD>background, bgcolor</TD>
221 <TD>Background text colour, can be a name or RGB value.</TD>
222 </TR>
223 <TR>
224 <TD>font_family, face</TD>
225 <TD>Font face name.</TD>
226 </TR>
227 <TR>
228 <TD>font_weight, weight</TD>
229 <TD>Numeric value in 0..900 range or one of "ultralight",
230 "light", "normal" (all meaning non-bold), "bold", "ultrabold"
231 and "heavy" (all meaning bold).</TD>
232 </TR>
233 <TR>
234 <TD>font_style, style</TD>
235 <TD>Either "oblique" or "italic" (both with the same meaning)
236 or "normal".</TD>
237 </TR>
238 <TR>
239 <TD>size</TD>
240 <TD>The font size can be specified either as "smaller" or
241 "larger" relatively to the current font, as a CSS font size
242 name ("xx-small", "x-small", "small", "medium", "large",
243 "x-large" or "xx-large") or as a number giving font size in
244 1024th parts of a point, i.e. 10240 for a 10pt font.</TD>
245 </TR>
246 </TABLE>
247
248 This markup language is a strict subset of Pango markup (described at
249 http://library.gnome.org/devel/pango/unstable/PangoMarkupFormat.html)
250 and any tags and span attributes not documented above can't be used
251 under non-GTK platforms.
252
253 Also note that you need to escape the following special characters:
254 <TABLE>
255 <TR>
256 <TD><b>Special character</b></TD>
257 <TD><b>Escape as</b></TD>
258 </TR>
259 <TR>
260 <TD>@c &amp;</TD>
261 <TD>@c &amp;amp; or as @c &amp;&amp;</TD>
262 </TR>
263 <TR>
264 <TD>@c &apos;</TD>
265 <TD>@c &amp;apos;</TD>
266 </TR>
267 <TR>
268 <TD>@c &quot;</TD>
269 <TD>@c &amp;quot;</TD>
270 </TR>
271 <TR>
272 <TD>@c &lt;</TD>
273 <TD>@c &amp;lt;</TD>
274 </TR>
275 <TR>
276 <TD>@c &gt;</TD>
277 <TD>@c &amp;gt;</TD>
278 </TR>
279 </TABLE>
280
281 The non-escaped ampersand @c &amp; characters are interpreted as
282 mnemonics as with wxControl::SetLabel.
283
284
285 @param markup
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286 String containing markup for the label. It may contain markup tags
287 described above and newline characters but currently only wxGTK and
288 wxOSX support multiline labels with markup, the generic
289 implementation (also used in wxMSW) only handles single line markup
290 labels. Notice that the string must be well-formed (e.g. all tags
291 must be correctly closed) and won't be shown at all otherwise.
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292 @return
293 @true if the new label was set (even if markup in it was ignored)
294 or @false if we failed to parse the markup. In this case the label
295 remains unchanged.
296
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297
298 Currently wxButton supports markup in all major ports (wxMSW, wxGTK and
299 wxOSX/Cocoa) while wxStaticText supports it in wxGTK and wxOSX and its
300 generic version (which can be used under MSW if markup support is
301 required). Extending support to more controls is planned in the future.
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302
303 @since 2.9.2
304 */
305 bool SetLabelMarkup(const wxString& markup);
306
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307
308public: // static functions
309
bd0812fe 310 /**
4520d583 311 Returns the given @a label string without mnemonics ("&" characters).
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312 */
313 static wxString GetLabelText(const wxString& label);
23324ae1 314
4520d583 315 /**
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316 Returns the given @a str string without mnemonics ("&" characters).
317
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318 @note This function is identical to GetLabelText() and is provided
319 mostly for symmetry with EscapeMnemonics().
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320 */
321 static wxString RemoveMnemonics(const wxString& str);
322
5b8b2c84 323 /**
32ee98eb 324 Escapes the special mnemonics characters ("&") in the given string.
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325
326 This function can be helpful if you need to set the controls label to a
327 user-provided string. If the string contains ampersands, they wouldn't
328 appear on the display but be used instead to indicate that the
329 character following the first of them can be used as a control mnemonic.
330 While this can sometimes be desirable (e.g. to allow the user to
331 configure mnemonics of the controls), more often you will want to use
332 this function before passing a user-defined string to SetLabel().
333 Alternatively, if the label is entirely user-defined, you can just call
334 SetLabelText() directly -- but this function must be used if the label
335 is a combination of a part defined by program containing the control
336 mnemonics and a user-defined part.
337
338 @param text
339 The string such as it should appear on the display.
340 @return
341 The same string with the ampersands in it doubled.
342 */
343 static wxString EscapeMnemonics(const wxString& text);
344
23324ae1 345 /**
32ee98eb 346 Replaces parts of the @a label string with ellipsis, if needed, so
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347 that it fits into @a maxWidth pixels if possible.
348
349 Note that this function does @em not guarantee that the returned string
350 will always be shorter than @a maxWidth; if @a maxWidth is extremely
351 small, ellipsized text may be larger.
bd0812fe 352
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353 @param label
354 The string to ellipsize
355 @param dc
356 The DC used to retrieve the character widths through the
357 wxDC::GetPartialTextExtents() function.
358 @param mode
359 The ellipsization mode. This is the setting which determines
360 which part of the string should be replaced by the ellipsis.
361 See ::wxEllipsizeMode enumeration values for more info.
362 @param maxWidth
363 The maximum width of the returned string in pixels.
364 This argument determines how much characters of the string need to
365 be removed (and replaced by ellipsis).
366 @param flags
367 One or more of the ::wxEllipsizeFlags enumeration values combined.
23324ae1 368 */
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369 static wxString Ellipsize(const wxString& label, const wxDC& dc,
370 wxEllipsizeMode mode, int maxWidth,
371 int flags = wxELLIPSIZE_FLAGS_DEFAULT);
23324ae1 372};
e54c96f1 373