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1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: textctrl.h
3 // Purpose: wxTextCtrlBase class - the interface of wxTextCtrl
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 13.07.99
7 // RCS-ID: $Id$
8 // Copyright: (c) wxWidgets team
9 // Licence: wxWindows licence
10 ///////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_TEXTCTRL_H_BASE_
13 #define _WX_TEXTCTRL_H_BASE_
14
15 // ----------------------------------------------------------------------------
16 // headers
17 // ----------------------------------------------------------------------------
18
19 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
20 #pragma interface "textctrlbase.h"
21 #endif
22
23 #include "wx/defs.h"
24
25 #if wxUSE_TEXTCTRL
26
27 #include "wx/control.h" // the base class
28 #include "wx/dynarray.h" // wxArrayInt
29 #include "wx/gdicmn.h" // wxPoint
30
31 // 16-bit Borland 4.0 doesn't seem to allow multiple inheritance with wxWindow
32 // and streambuf: it complains about deriving a huge class from the huge class
33 // streambuf. !! Also, can't use streambuf if making or using a DLL :-(
34
35 #if (defined(__BORLANDC__)) || defined(__MWERKS__) || \
36 (defined(__WINDOWS__) && (defined(WXUSINGDLL) || defined(WXMAKINGDLL)))
37 #define NO_TEXT_WINDOW_STREAM
38 #endif
39
40 #ifndef NO_TEXT_WINDOW_STREAM
41 #if wxUSE_STD_IOSTREAM
42 #include "wx/ioswrap.h" // derivation: we need the full decls.
43 #else // !wxUSE_STD_IOSTREAM
44 // can't compile this feature in if we don't use streams at all
45 #define NO_TEXT_WINDOW_STREAM
46 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
47 #endif
48
49 #if defined(__WXMSW__) && defined(__MINGW32__)
50 #include "wx/msw/winundef.h"
51 #endif
52
53 class WXDLLEXPORT wxTextCtrl;
54 class WXDLLEXPORT wxTextCtrlBase;
55
56 // ----------------------------------------------------------------------------
57 // wxTextCtrl types
58 // ----------------------------------------------------------------------------
59
60 // wxTextPos is the position in the text
61 typedef long wxTextPos;
62
63 // wxTextCoord is the line or row number (which should have been unsigned but
64 // is long for backwards compatibility)
65 typedef long wxTextCoord;
66
67 // ----------------------------------------------------------------------------
68 // constants
69 // ----------------------------------------------------------------------------
70
71 extern WXDLLEXPORT_DATA(const wxChar*) wxTextCtrlNameStr;
72
73 // this is intentionally not enum to avoid warning fixes with
74 // typecasting from enum type to wxTextCoord
75 const wxTextCoord wxOutOfRangeTextCoord = -1;
76 const wxTextCoord wxInvalidTextCoord = -2;
77
78 // ----------------------------------------------------------------------------
79 // wxTextCtrl style flags
80 // ----------------------------------------------------------------------------
81
82 // the flag bits 0x0001, and 0x0004 are free but should be used only for the
83 // things which don't make sense for a text control used by wxTextEntryDialog
84 // because they would otherwise conflict with wxOK, wxCANCEL, wxCENTRE
85
86 #define wxTE_NO_VSCROLL 0x0002
87 #define wxTE_AUTO_SCROLL 0x0008
88
89 #define wxTE_READONLY 0x0010
90 #define wxTE_MULTILINE 0x0020
91 #define wxTE_PROCESS_TAB 0x0040
92
93 // alignment flags
94 #define wxTE_LEFT 0x0000 // 0x0000
95 #define wxTE_CENTER wxALIGN_CENTER_HORIZONTAL // 0x0100
96 #define wxTE_RIGHT wxALIGN_RIGHT // 0x0200
97 #define wxTE_CENTRE wxTE_CENTER
98
99 // this style means to use RICHEDIT control and does something only under wxMSW
100 // and Win32 and is silently ignored under all other platforms
101 #define wxTE_RICH 0x0080
102
103 #define wxTE_PROCESS_ENTER 0x0400
104 #define wxTE_PASSWORD 0x0800
105
106 // automatically detect the URLs and generate the events when mouse is
107 // moved/clicked over an URL
108 //
109 // this is for Win32 richedit and wxGTK2 multiline controls only so far
110 #define wxTE_AUTO_URL 0x1000
111
112 // by default, the Windows text control doesn't show the selection when it
113 // doesn't have focus - use this style to force it to always show it
114 #define wxTE_NOHIDESEL 0x2000
115
116 // use wxHSCROLL to not wrap text at all, wxTE_LINEWRAP to wrap it at any
117 // position and wxTE_WORDWRAP to wrap at words boundary
118 #define wxTE_DONTWRAP wxHSCROLL
119 #define wxTE_LINEWRAP 0x4000
120 #define wxTE_WORDWRAP 0x0000 // it's just == !wxHSCROLL
121
122 // force using RichEdit version 2.0 or 3.0 instead of 1.0 (default) for
123 // wxTE_RICH controls - can be used together with or instead of wxTE_RICH
124 #define wxTE_RICH2 0x8000
125
126 // reuse wxTE_RICH2's value for CAPEDIT control on Windows CE
127 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
128 #define wxTE_CAPITALIZE wxTE_RICH2
129 #else
130 #define wxTE_CAPITALIZE 0
131 #endif
132
133 // ----------------------------------------------------------------------------
134 // wxTextCtrl::HitTest return values
135 // ----------------------------------------------------------------------------
136
137 // the point asked is ...
138 enum wxTextCtrlHitTestResult
139 {
140 wxTE_HT_UNKNOWN = -2, // this means HitTest() is simply not implemented
141 wxTE_HT_BEFORE, // either to the left or upper
142 wxTE_HT_ON_TEXT, // directly on
143 wxTE_HT_BELOW, // below [the last line]
144 wxTE_HT_BEYOND // after [the end of line]
145 };
146 // ... the character returned
147
148 // ----------------------------------------------------------------------------
149 // Types for wxTextAttr
150 // ----------------------------------------------------------------------------
151
152 // Alignment
153
154 enum wxTextAttrAlignment
155 {
156 wxTEXT_ALIGNMENT_DEFAULT,
157 wxTEXT_ALIGNMENT_LEFT,
158 wxTEXT_ALIGNMENT_CENTRE,
159 wxTEXT_ALIGNMENT_CENTER = wxTEXT_ALIGNMENT_CENTRE,
160 wxTEXT_ALIGNMENT_RIGHT,
161 wxTEXT_ALIGNMENT_JUSTIFIED
162 };
163
164 // Flags to indicate which attributes are being applied
165
166 #define wxTEXT_ATTR_TEXT_COLOUR 0x0001
167 #define wxTEXT_ATTR_BACKGROUND_COLOUR 0x0002
168 #define wxTEXT_ATTR_FONT_FACE 0x0004
169 #define wxTEXT_ATTR_FONT_SIZE 0x0008
170 #define wxTEXT_ATTR_FONT_WEIGHT 0x0010
171 #define wxTEXT_ATTR_FONT_ITALIC 0x0020
172 #define wxTEXT_ATTR_FONT_UNDERLINE 0x0040
173 #define wxTEXT_ATTR_FONT \
174 wxTEXT_ATTR_FONT_FACE | wxTEXT_ATTR_FONT_SIZE | wxTEXT_ATTR_FONT_WEIGHT | wxTEXT_ATTR_FONT_ITALIC | wxTEXT_ATTR_FONT_UNDERLINE
175 #define wxTEXT_ATTR_ALIGNMENT 0x0080
176 #define wxTEXT_ATTR_LEFT_INDENT 0x0100
177 #define wxTEXT_ATTR_RIGHT_INDENT 0x0200
178 #define wxTEXT_ATTR_TABS 0x0400
179
180 // ----------------------------------------------------------------------------
181 // wxTextAttr: a structure containing the visual attributes of a text
182 // ----------------------------------------------------------------------------
183
184 class WXDLLEXPORT wxTextAttr
185 {
186 public:
187 // ctors
188 wxTextAttr() { Init(); }
189 wxTextAttr(const wxColour& colText,
190 const wxColour& colBack = wxNullColour,
191 const wxFont& font = wxNullFont,
192 wxTextAttrAlignment alignment = wxTEXT_ALIGNMENT_DEFAULT);
193
194 // operations
195 void Init();
196
197 // operators
198 void operator= (const wxTextAttr& attr);
199
200 // setters
201 void SetTextColour(const wxColour& colText) { m_colText = colText; m_flags |= wxTEXT_ATTR_TEXT_COLOUR; }
202 void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR; }
203 void SetFont(const wxFont& font, long flags = wxTEXT_ATTR_FONT) { m_font = font; m_flags |= flags; }
204 void SetAlignment(wxTextAttrAlignment alignment) { m_textAlignment = alignment; m_flags |= wxTEXT_ATTR_ALIGNMENT; }
205 void SetTabs(const wxArrayInt& tabs) { m_tabs = tabs; m_flags |= wxTEXT_ATTR_TABS; }
206 void SetLeftIndent(int indent, int subIndent = 0) { m_leftIndent = indent; m_leftSubIndent = subIndent; m_flags |= wxTEXT_ATTR_LEFT_INDENT; }
207 void SetRightIndent(int indent) { m_rightIndent = indent; m_flags |= wxTEXT_ATTR_RIGHT_INDENT; }
208 void SetFlags(long flags) { m_flags = flags; }
209
210 // accessors
211 bool HasTextColour() const { return m_colText.Ok() && HasFlag(wxTEXT_ATTR_TEXT_COLOUR) ; }
212 bool HasBackgroundColour() const { return m_colBack.Ok() && HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) ; }
213 bool HasFont() const { return m_font.Ok() && HasFlag(wxTEXT_ATTR_FONT) ; }
214 bool HasAlignment() const { return (m_textAlignment != wxTEXT_ALIGNMENT_DEFAULT) || ((m_flags & wxTEXT_ATTR_ALIGNMENT) != 0) ; }
215 bool HasTabs() const { return (m_flags & wxTEXT_ATTR_TABS) != 0 ; }
216 bool HasLeftIndent() const { return (m_flags & wxTEXT_ATTR_LEFT_INDENT) != 0 ; }
217 bool HasRightIndent() const { return (m_flags & wxTEXT_ATTR_RIGHT_INDENT) != 0 ; }
218 bool HasFlag(long flag) const { return (m_flags & flag) != 0; }
219
220 const wxColour& GetTextColour() const { return m_colText; }
221 const wxColour& GetBackgroundColour() const { return m_colBack; }
222 const wxFont& GetFont() const { return m_font; }
223 wxTextAttrAlignment GetAlignment() const { return m_textAlignment; }
224 const wxArrayInt& GetTabs() const { return m_tabs; }
225 long GetLeftIndent() const { return m_leftIndent; }
226 long GetLeftSubIndent() const { return m_leftSubIndent; }
227 long GetRightIndent() const { return m_rightIndent; }
228 long GetFlags() const { return m_flags; }
229
230 // returns false if we have any attributes set, true otherwise
231 bool IsDefault() const
232 {
233 return !HasTextColour() && !HasBackgroundColour() && !HasFont() && !HasAlignment() &&
234 !HasTabs() && !HasLeftIndent() && !HasRightIndent() ;
235 }
236
237 // return the attribute having the valid font and colours: it uses the
238 // attributes set in attr and falls back first to attrDefault and then to
239 // the text control font/colours for those attributes which are not set
240 static wxTextAttr Combine(const wxTextAttr& attr,
241 const wxTextAttr& attrDef,
242 const wxTextCtrlBase *text);
243
244 private:
245 long m_flags;
246 wxColour m_colText,
247 m_colBack;
248 wxFont m_font;
249 wxTextAttrAlignment m_textAlignment;
250 wxArrayInt m_tabs; // array of int: tab stops in 1/10 mm
251 int m_leftIndent; // left indent in 1/10 mm
252 int m_leftSubIndent; // left indent for all but the first
253 // line in a paragraph relative to the
254 // first line, in 1/10 mm
255 int m_rightIndent; // right indent in 1/10 mm
256 };
257
258 // ----------------------------------------------------------------------------
259 // wxTextCtrl: a single or multiple line text zone where user can enter and
260 // edit text
261 // ----------------------------------------------------------------------------
262
263 class WXDLLEXPORT wxTextCtrlBase : public wxControl
264 #ifndef NO_TEXT_WINDOW_STREAM
265 , public wxSTD streambuf
266 #endif
267
268 {
269 public:
270 // creation
271 // --------
272
273 wxTextCtrlBase(){}
274 ~wxTextCtrlBase(){}
275
276 // accessors
277 // ---------
278
279 virtual wxString GetValue() const = 0;
280 virtual void SetValue(const wxString& value) = 0;
281
282 virtual wxString GetRange(long from, long to) const;
283
284 virtual int GetLineLength(long lineNo) const = 0;
285 virtual wxString GetLineText(long lineNo) const = 0;
286 virtual int GetNumberOfLines() const = 0;
287
288 virtual bool IsModified() const = 0;
289 virtual bool IsEditable() const = 0;
290
291 // more readable flag testing methods
292 bool IsSingleLine() const { return !HasFlag(wxTE_MULTILINE); }
293 bool IsMultiLine() const { return !IsSingleLine(); }
294
295 // If the return values from and to are the same, there is no selection.
296 virtual void GetSelection(long* from, long* to) const = 0;
297
298 virtual wxString GetStringSelection() const;
299
300 // operations
301 // ----------
302
303 // editing
304 virtual void Clear() = 0;
305 virtual void Replace(long from, long to, const wxString& value) = 0;
306 virtual void Remove(long from, long to) = 0;
307
308 // load/save the controls contents from/to the file
309 virtual bool LoadFile(const wxString& file);
310 virtual bool SaveFile(const wxString& file = wxEmptyString);
311
312 // sets/clears the dirty flag
313 virtual void MarkDirty() = 0;
314 virtual void DiscardEdits() = 0;
315
316 // set the max number of characters which may be entered in a single line
317 // text control
318 virtual void SetMaxLength(unsigned long WXUNUSED(len)) { }
319
320 // writing text inserts it at the current position, appending always
321 // inserts it at the end
322 virtual void WriteText(const wxString& text) = 0;
323 virtual void AppendText(const wxString& text) = 0;
324
325 // insert the character which would have resulted from this key event,
326 // return true if anything has been inserted
327 virtual bool EmulateKeyPress(const wxKeyEvent& event);
328
329 // text control under some platforms supports the text styles: these
330 // methods allow to apply the given text style to the given selection or to
331 // set/get the style which will be used for all appended text
332 virtual bool SetStyle(long start, long end, const wxTextAttr& style);
333 virtual bool GetStyle(long position, wxTextAttr& style);
334 virtual bool SetDefaultStyle(const wxTextAttr& style);
335 virtual const wxTextAttr& GetDefaultStyle() const;
336
337 // translate between the position (which is just an index in the text ctrl
338 // considering all its contents as a single strings) and (x, y) coordinates
339 // which represent column and line.
340 virtual long XYToPosition(long x, long y) const = 0;
341 virtual bool PositionToXY(long pos, long *x, long *y) const = 0;
342
343 virtual void ShowPosition(long pos) = 0;
344
345 // find the character at position given in pixels
346 //
347 // NB: pt is in device coords (not adjusted for the client area origin nor
348 // scrolling)
349 virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
350 virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
351 wxTextCoord *col,
352 wxTextCoord *row) const;
353
354 // Clipboard operations
355 virtual void Copy() = 0;
356 virtual void Cut() = 0;
357 virtual void Paste() = 0;
358
359 virtual bool CanCopy() const;
360 virtual bool CanCut() const;
361 virtual bool CanPaste() const;
362
363 // Undo/redo
364 virtual void Undo() = 0;
365 virtual void Redo() = 0;
366
367 virtual bool CanUndo() const = 0;
368 virtual bool CanRedo() const = 0;
369
370 // Insertion point
371 virtual void SetInsertionPoint(long pos) = 0;
372 virtual void SetInsertionPointEnd() = 0;
373 virtual long GetInsertionPoint() const = 0;
374 virtual wxTextPos GetLastPosition() const = 0;
375
376 virtual void SetSelection(long from, long to) = 0;
377 virtual void SelectAll();
378 virtual void SetEditable(bool editable) = 0;
379
380 // override streambuf method
381 #ifndef NO_TEXT_WINDOW_STREAM
382 int overflow(int i);
383 #endif // NO_TEXT_WINDOW_STREAM
384
385 // stream-like insertion operators: these are always available, whether we
386 // were, or not, compiled with streambuf support
387 wxTextCtrl& operator<<(const wxString& s);
388 wxTextCtrl& operator<<(int i);
389 wxTextCtrl& operator<<(long i);
390 wxTextCtrl& operator<<(float f);
391 wxTextCtrl& operator<<(double d);
392 wxTextCtrl& operator<<(const wxChar c);
393
394 // do the window-specific processing after processing the update event
395 virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
396
397 virtual bool ShouldInheritColours() const { return false; }
398
399 protected:
400 // the name of the last file loaded with LoadFile() which will be used by
401 // SaveFile() by default
402 wxString m_filename;
403
404 // the text style which will be used for any new text added to the control
405 wxTextAttr m_defaultStyle;
406
407 DECLARE_NO_COPY_CLASS(wxTextCtrlBase)
408 };
409
410 // ----------------------------------------------------------------------------
411 // include the platform-dependent class definition
412 // ----------------------------------------------------------------------------
413
414 #if defined(__WXX11__)
415 #include "wx/x11/textctrl.h"
416 #elif defined(__WXUNIVERSAL__)
417 #include "wx/univ/textctrl.h"
418 #elif defined(__SMARTPHONE__) && defined(__WXWINCE__)
419 #include "wx/msw/wince/textctrlce.h"
420 #elif defined(__WXMSW__)
421 #include "wx/msw/textctrl.h"
422 #elif defined(__WXMOTIF__)
423 #include "wx/motif/textctrl.h"
424 #elif defined(__WXGTK__)
425 #include "wx/gtk/textctrl.h"
426 #elif defined(__WXMAC__)
427 #include "wx/mac/textctrl.h"
428 #elif defined(__WXCOCOA__)
429 #include "wx/cocoa/textctrl.h"
430 #elif defined(__WXPM__)
431 #include "wx/os2/textctrl.h"
432 #endif
433
434 // ----------------------------------------------------------------------------
435 // wxTextCtrl events
436 // ----------------------------------------------------------------------------
437
438 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
439
440 BEGIN_DECLARE_EVENT_TYPES()
441 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED, 7)
442 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_ENTER, 8)
443 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_URL, 13)
444 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_MAXLEN, 14)
445 END_DECLARE_EVENT_TYPES()
446
447 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
448
449 class WXDLLEXPORT wxTextUrlEvent : public wxCommandEvent
450 {
451 public:
452 wxTextUrlEvent(int winid, const wxMouseEvent& evtMouse,
453 long start, long end)
454 : wxCommandEvent(wxEVT_COMMAND_TEXT_URL, winid)
455 , m_evtMouse(evtMouse), m_start(start), m_end(end)
456 { }
457
458 // get the mouse event which happend over the URL
459 const wxMouseEvent& GetMouseEvent() const { return m_evtMouse; }
460
461 // get the start of the URL
462 long GetURLStart() const { return m_start; }
463
464 // get the end of the URL
465 long GetURLEnd() const { return m_end; }
466
467 protected:
468 // the corresponding mouse event
469 wxMouseEvent m_evtMouse;
470
471 // the start and end indices of the URL in the text control
472 long m_start,
473 m_end;
474
475 private:
476 DECLARE_DYNAMIC_CLASS_NO_COPY(wxTextUrlEvent)
477
478 public:
479 // for wxWin RTTI only, don't use
480 wxTextUrlEvent() : m_evtMouse(), m_start(0), m_end(0) { }
481 };
482
483 typedef void (wxEvtHandler::*wxTextUrlEventFunction)(wxTextUrlEvent&);
484
485 #define wxTextEventHandler(func) wxCommandEventHandler(func)
486 #define wxTextUrlEventHandler(func) \
487 (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxTextUrlEventFunction, &func)
488
489 #define wx__DECLARE_TEXTEVT(evt, id, fn) \
490 wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextEventHandler(fn))
491
492 #define wx__DECLARE_TEXTURLEVT(evt, id, fn) \
493 wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextUrlEventHandler(fn))
494
495 #define EVT_TEXT(id, fn) wx__DECLARE_TEXTEVT(UPDATED, id, fn)
496 #define EVT_TEXT_ENTER(id, fn) wx__DECLARE_TEXTEVT(ENTER, id, fn)
497 #define EVT_TEXT_URL(id, fn) wx__DECLARE_TEXTURLEVT(URL, id, fn)
498 #define EVT_TEXT_MAXLEN(id, fn) wx__DECLARE_TEXTEVT(MAXLEN, id, fn)
499
500 #ifndef NO_TEXT_WINDOW_STREAM
501
502 // ----------------------------------------------------------------------------
503 // wxStreamToTextRedirector: this class redirects all data sent to the given
504 // C++ stream to the wxTextCtrl given to its ctor during its lifetime.
505 // ----------------------------------------------------------------------------
506
507 class WXDLLEXPORT wxStreamToTextRedirector
508 {
509 private:
510 void Init(wxTextCtrl *text)
511 {
512 m_sbufOld = m_ostr.rdbuf();
513 m_ostr.rdbuf(text);
514 }
515
516 public:
517 wxStreamToTextRedirector(wxTextCtrl *text)
518 : m_ostr(wxSTD cout)
519 {
520 Init(text);
521 }
522
523 wxStreamToTextRedirector(wxTextCtrl *text, wxSTD ostream *ostr)
524 : m_ostr(*ostr)
525 {
526 Init(text);
527 }
528
529 ~wxStreamToTextRedirector()
530 {
531 m_ostr.rdbuf(m_sbufOld);
532 }
533
534 private:
535 // the stream we're redirecting
536 wxSTD ostream& m_ostr;
537
538 // the old streambuf (before we changed it)
539 wxSTD streambuf *m_sbufOld;
540 };
541
542 #endif // !NO_TEXT_WINDOW_STREAM
543
544 #endif // wxUSE_TEXTCTRL
545
546 #endif
547 // _WX_TEXTCTRL_H_BASE_