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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 // ----------------------------------------------------------------------------
127 // wxTextCtrl::HitTest return values
128 // ----------------------------------------------------------------------------
129
130 // the point asked is ...
131 enum wxTextCtrlHitTestResult
132 {
133 wxTE_HT_UNKNOWN = -2, // this means HitTest() is simply not implemented
134 wxTE_HT_BEFORE, // either to the left or upper
135 wxTE_HT_ON_TEXT, // directly on
136 wxTE_HT_BELOW, // below [the last line]
137 wxTE_HT_BEYOND // after [the end of line]
138 };
139 // ... the character returned
140
141 // ----------------------------------------------------------------------------
142 // Types for wxTextAttr
143 // ----------------------------------------------------------------------------
144
145 // Alignment
146
147 enum wxTextAttrAlignment
148 {
149 wxTEXT_ALIGNMENT_DEFAULT,
150 wxTEXT_ALIGNMENT_LEFT,
151 wxTEXT_ALIGNMENT_CENTRE,
152 wxTEXT_ALIGNMENT_CENTER = wxTEXT_ALIGNMENT_CENTRE,
153 wxTEXT_ALIGNMENT_RIGHT,
154 wxTEXT_ALIGNMENT_JUSTIFIED
155 };
156
157 // Flags to indicate which attributes are being applied
158
159 #define wxTEXT_ATTR_TEXT_COLOUR 0x0001
160 #define wxTEXT_ATTR_BACKGROUND_COLOUR 0x0002
161 #define wxTEXT_ATTR_FONT_FACE 0x0004
162 #define wxTEXT_ATTR_FONT_SIZE 0x0008
163 #define wxTEXT_ATTR_FONT_WEIGHT 0x0010
164 #define wxTEXT_ATTR_FONT_ITALIC 0x0020
165 #define wxTEXT_ATTR_FONT_UNDERLINE 0x0040
166 #define wxTEXT_ATTR_FONT \
167 wxTEXT_ATTR_FONT_FACE | wxTEXT_ATTR_FONT_SIZE | wxTEXT_ATTR_FONT_WEIGHT | wxTEXT_ATTR_FONT_ITALIC | wxTEXT_ATTR_FONT_UNDERLINE
168 #define wxTEXT_ATTR_ALIGNMENT 0x0080
169 #define wxTEXT_ATTR_LEFT_INDENT 0x0100
170 #define wxTEXT_ATTR_RIGHT_INDENT 0x0200
171 #define wxTEXT_ATTR_TABS 0x0400
172
173 // ----------------------------------------------------------------------------
174 // wxTextAttr: a structure containing the visual attributes of a text
175 // ----------------------------------------------------------------------------
176
177 class WXDLLEXPORT wxTextAttr
178 {
179 public:
180 // ctors
181 wxTextAttr() { Init(); }
182 wxTextAttr(const wxColour& colText,
183 const wxColour& colBack = wxNullColour,
184 const wxFont& font = wxNullFont,
185 wxTextAttrAlignment alignment = wxTEXT_ALIGNMENT_DEFAULT);
186
187 // operations
188 void Init();
189
190 // operators
191 void operator= (const wxTextAttr& attr);
192
193 // setters
194 void SetTextColour(const wxColour& colText) { m_colText = colText; m_flags |= wxTEXT_ATTR_TEXT_COLOUR; }
195 void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR; }
196 void SetFont(const wxFont& font, long flags = wxTEXT_ATTR_FONT) { m_font = font; m_flags |= flags; }
197 void SetAlignment(wxTextAttrAlignment alignment) { m_textAlignment = alignment; m_flags |= wxTEXT_ATTR_ALIGNMENT; }
198 void SetTabs(const wxArrayInt& tabs) { m_tabs = tabs; m_flags |= wxTEXT_ATTR_TABS; }
199 void SetLeftIndent(int indent, int subIndent = 0) { m_leftIndent = indent; m_leftSubIndent = subIndent; m_flags |= wxTEXT_ATTR_LEFT_INDENT; }
200 void SetRightIndent(int indent) { m_rightIndent = indent; m_flags |= wxTEXT_ATTR_RIGHT_INDENT; }
201 void SetFlags(long flags) { m_flags = flags; }
202
203 // accessors
204 bool HasTextColour() const { return m_colText.Ok() && HasFlag(wxTEXT_ATTR_TEXT_COLOUR) ; }
205 bool HasBackgroundColour() const { return m_colBack.Ok() && HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) ; }
206 bool HasFont() const { return m_font.Ok() && HasFlag(wxTEXT_ATTR_FONT) ; }
207 bool HasAlignment() const { return (m_textAlignment != wxTEXT_ALIGNMENT_DEFAULT) || ((m_flags & wxTEXT_ATTR_ALIGNMENT) != 0) ; }
208 bool HasTabs() const { return (m_flags & wxTEXT_ATTR_TABS) != 0 ; }
209 bool HasLeftIndent() const { return (m_flags & wxTEXT_ATTR_LEFT_INDENT) != 0 ; }
210 bool HasRightIndent() const { return (m_flags & wxTEXT_ATTR_RIGHT_INDENT) != 0 ; }
211 bool HasFlag(long flag) const { return (m_flags & flag) != 0; }
212
213 const wxColour& GetTextColour() const { return m_colText; }
214 const wxColour& GetBackgroundColour() const { return m_colBack; }
215 const wxFont& GetFont() const { return m_font; }
216 wxTextAttrAlignment GetAlignment() const { return m_textAlignment; }
217 const wxArrayInt& GetTabs() const { return m_tabs; }
218 long GetLeftIndent() const { return m_leftIndent; }
219 long GetLeftSubIndent() const { return m_leftSubIndent; }
220 long GetRightIndent() const { return m_rightIndent; }
221 long GetFlags() const { return m_flags; }
222
223 // returns false if we have any attributes set, true otherwise
224 bool IsDefault() const
225 {
226 return !HasTextColour() && !HasBackgroundColour() && !HasFont() && !HasAlignment() &&
227 !HasTabs() && !HasLeftIndent() && !HasRightIndent() ;
228 }
229
230 // return the attribute having the valid font and colours: it uses the
231 // attributes set in attr and falls back first to attrDefault and then to
232 // the text control font/colours for those attributes which are not set
233 static wxTextAttr Combine(const wxTextAttr& attr,
234 const wxTextAttr& attrDef,
235 const wxTextCtrlBase *text);
236
237 private:
238 long m_flags;
239 wxColour m_colText,
240 m_colBack;
241 wxFont m_font;
242 wxTextAttrAlignment m_textAlignment;
243 wxArrayInt m_tabs; // array of int: tab stops in 1/10 mm
244 int m_leftIndent; // left indent in 1/10 mm
245 int m_leftSubIndent; // left indent for all but the first
246 // line in a paragraph relative to the
247 // first line, in 1/10 mm
248 int m_rightIndent; // right indent in 1/10 mm
249 };
250
251 // ----------------------------------------------------------------------------
252 // wxTextCtrl: a single or multiple line text zone where user can enter and
253 // edit text
254 // ----------------------------------------------------------------------------
255
256 class WXDLLEXPORT wxTextCtrlBase : public wxControl
257 #ifndef NO_TEXT_WINDOW_STREAM
258 , public wxSTD streambuf
259 #endif
260
261 {
262 public:
263 // creation
264 // --------
265
266 wxTextCtrlBase(){}
267 ~wxTextCtrlBase(){}
268
269 // accessors
270 // ---------
271
272 virtual wxString GetValue() const = 0;
273 virtual void SetValue(const wxString& value) = 0;
274
275 virtual wxString GetRange(long from, long to) const;
276
277 virtual int GetLineLength(long lineNo) const = 0;
278 virtual wxString GetLineText(long lineNo) const = 0;
279 virtual int GetNumberOfLines() const = 0;
280
281 virtual bool IsModified() const = 0;
282 virtual bool IsEditable() const = 0;
283
284 // more readable flag testing methods
285 bool IsSingleLine() const { return !HasFlag(wxTE_MULTILINE); }
286 bool IsMultiLine() const { return !IsSingleLine(); }
287
288 // If the return values from and to are the same, there is no selection.
289 virtual void GetSelection(long* from, long* to) const = 0;
290
291 virtual wxString GetStringSelection() const;
292
293 // operations
294 // ----------
295
296 // editing
297 virtual void Clear() = 0;
298 virtual void Replace(long from, long to, const wxString& value) = 0;
299 virtual void Remove(long from, long to) = 0;
300
301 // load/save the controls contents from/to the file
302 virtual bool LoadFile(const wxString& file);
303 virtual bool SaveFile(const wxString& file = wxEmptyString);
304
305 // sets/clears the dirty flag
306 virtual void MarkDirty() = 0;
307 virtual void DiscardEdits() = 0;
308
309 // set the max number of characters which may be entered in a single line
310 // text control
311 virtual void SetMaxLength(unsigned long WXUNUSED(len)) { }
312
313 // writing text inserts it at the current position, appending always
314 // inserts it at the end
315 virtual void WriteText(const wxString& text) = 0;
316 virtual void AppendText(const wxString& text) = 0;
317
318 // insert the character which would have resulted from this key event,
319 // return true if anything has been inserted
320 virtual bool EmulateKeyPress(const wxKeyEvent& event);
321
322 // text control under some platforms supports the text styles: these
323 // methods allow to apply the given text style to the given selection or to
324 // set/get the style which will be used for all appended text
325 virtual bool SetStyle(long start, long end, const wxTextAttr& style);
326 virtual bool GetStyle(long position, wxTextAttr& style);
327 virtual bool SetDefaultStyle(const wxTextAttr& style);
328 virtual const wxTextAttr& GetDefaultStyle() const;
329
330 // translate between the position (which is just an index in the text ctrl
331 // considering all its contents as a single strings) and (x, y) coordinates
332 // which represent column and line.
333 virtual long XYToPosition(long x, long y) const = 0;
334 virtual bool PositionToXY(long pos, long *x, long *y) const = 0;
335
336 virtual void ShowPosition(long pos) = 0;
337
338 // find the character at position given in pixels
339 //
340 // NB: pt is in device coords (not adjusted for the client area origin nor
341 // scrolling)
342 virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
343 virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
344 wxTextCoord *col,
345 wxTextCoord *row) const;
346
347 // Clipboard operations
348 virtual void Copy() = 0;
349 virtual void Cut() = 0;
350 virtual void Paste() = 0;
351
352 virtual bool CanCopy() const;
353 virtual bool CanCut() const;
354 virtual bool CanPaste() const;
355
356 // Undo/redo
357 virtual void Undo() = 0;
358 virtual void Redo() = 0;
359
360 virtual bool CanUndo() const = 0;
361 virtual bool CanRedo() const = 0;
362
363 // Insertion point
364 virtual void SetInsertionPoint(long pos) = 0;
365 virtual void SetInsertionPointEnd() = 0;
366 virtual long GetInsertionPoint() const = 0;
367 virtual wxTextPos GetLastPosition() const = 0;
368
369 virtual void SetSelection(long from, long to) = 0;
370 virtual void SelectAll();
371 virtual void SetEditable(bool editable) = 0;
372
373 // override streambuf method
374 #ifndef NO_TEXT_WINDOW_STREAM
375 int overflow(int i);
376 #endif // NO_TEXT_WINDOW_STREAM
377
378 // stream-like insertion operators: these are always available, whether we
379 // were, or not, compiled with streambuf support
380 wxTextCtrl& operator<<(const wxString& s);
381 wxTextCtrl& operator<<(int i);
382 wxTextCtrl& operator<<(long i);
383 wxTextCtrl& operator<<(float f);
384 wxTextCtrl& operator<<(double d);
385 wxTextCtrl& operator<<(const wxChar c);
386
387 // do the window-specific processing after processing the update event
388 virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
389
390 virtual bool ShouldInheritColours() const { return false; }
391
392 protected:
393 // the name of the last file loaded with LoadFile() which will be used by
394 // SaveFile() by default
395 wxString m_filename;
396
397 // the text style which will be used for any new text added to the control
398 wxTextAttr m_defaultStyle;
399
400 DECLARE_NO_COPY_CLASS(wxTextCtrlBase)
401 };
402
403 // ----------------------------------------------------------------------------
404 // include the platform-dependent class definition
405 // ----------------------------------------------------------------------------
406
407 #if defined(__WXX11__)
408 #include "wx/x11/textctrl.h"
409 #elif defined(__WXUNIVERSAL__)
410 #include "wx/univ/textctrl.h"
411 #elif defined(__SMARTPHONE__) && defined(__WXWINCE__)
412 #include "wx/msw/wince/textctrlce.h"
413 #elif defined(__WXMSW__)
414 #include "wx/msw/textctrl.h"
415 #elif defined(__WXMOTIF__)
416 #include "wx/motif/textctrl.h"
417 #elif defined(__WXGTK__)
418 #include "wx/gtk/textctrl.h"
419 #elif defined(__WXMAC__)
420 #include "wx/mac/textctrl.h"
421 #elif defined(__WXCOCOA__)
422 #include "wx/cocoa/textctrl.h"
423 #elif defined(__WXPM__)
424 #include "wx/os2/textctrl.h"
425 #endif
426
427 // ----------------------------------------------------------------------------
428 // wxTextCtrl events
429 // ----------------------------------------------------------------------------
430
431 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
432
433 BEGIN_DECLARE_EVENT_TYPES()
434 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED, 7)
435 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_ENTER, 8)
436 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_URL, 13)
437 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_MAXLEN, 14)
438 END_DECLARE_EVENT_TYPES()
439
440 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
441
442 class WXDLLEXPORT wxTextUrlEvent : public wxCommandEvent
443 {
444 public:
445 wxTextUrlEvent(int winid, const wxMouseEvent& evtMouse,
446 long start, long end)
447 : wxCommandEvent(wxEVT_COMMAND_TEXT_URL, winid)
448 , m_evtMouse(evtMouse), m_start(start), m_end(end)
449 { }
450
451 // get the mouse event which happend over the URL
452 const wxMouseEvent& GetMouseEvent() const { return m_evtMouse; }
453
454 // get the start of the URL
455 long GetURLStart() const { return m_start; }
456
457 // get the end of the URL
458 long GetURLEnd() const { return m_end; }
459
460 protected:
461 // the corresponding mouse event
462 wxMouseEvent m_evtMouse;
463
464 // the start and end indices of the URL in the text control
465 long m_start,
466 m_end;
467
468 private:
469 DECLARE_DYNAMIC_CLASS_NO_COPY(wxTextUrlEvent)
470
471 public:
472 // for wxWin RTTI only, don't use
473 wxTextUrlEvent() : m_evtMouse(), m_start(0), m_end(0) { }
474 };
475
476 typedef void (wxEvtHandler::*wxTextUrlEventFunction)(wxTextUrlEvent&);
477
478 #define wxTextEventHandler(func) wxCommandEventHandler(func)
479 #define wxTextUrlEventHandler(func) \
480 (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxTextUrlEventFunction, &func)
481
482 #define wx__DECLARE_TEXTEVT(evt, id, fn) \
483 wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextEventHandler(fn))
484
485 #define wx__DECLARE_TEXTURLEVT(evt, id, fn) \
486 wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextUrlEventHandler(fn))
487
488 #define EVT_TEXT(id, fn) wx__DECLARE_TEXTEVT(UPDATED, id, fn)
489 #define EVT_TEXT_ENTER(id, fn) wx__DECLARE_TEXTEVT(ENTER, id, fn)
490 #define EVT_TEXT_URL(id, fn) wx__DECLARE_TEXTURLEVT(URL, id, fn)
491 #define EVT_TEXT_MAXLEN(id, fn) wx__DECLARE_TEXTEVT(MAXLEN, id, fn)
492
493 #ifndef NO_TEXT_WINDOW_STREAM
494
495 // ----------------------------------------------------------------------------
496 // wxStreamToTextRedirector: this class redirects all data sent to the given
497 // C++ stream to the wxTextCtrl given to its ctor during its lifetime.
498 // ----------------------------------------------------------------------------
499
500 class WXDLLEXPORT wxStreamToTextRedirector
501 {
502 private:
503 void Init(wxTextCtrl *text)
504 {
505 m_sbufOld = m_ostr.rdbuf();
506 m_ostr.rdbuf(text);
507 }
508
509 public:
510 wxStreamToTextRedirector(wxTextCtrl *text)
511 : m_ostr(wxSTD cout)
512 {
513 Init(text);
514 }
515
516 wxStreamToTextRedirector(wxTextCtrl *text, wxSTD ostream *ostr)
517 : m_ostr(*ostr)
518 {
519 Init(text);
520 }
521
522 ~wxStreamToTextRedirector()
523 {
524 m_ostr.rdbuf(m_sbufOld);
525 }
526
527 private:
528 // the stream we're redirecting
529 wxSTD ostream& m_ostr;
530
531 // the old streambuf (before we changed it)
532 wxSTD streambuf *m_sbufOld;
533 };
534
535 #endif // !NO_TEXT_WINDOW_STREAM
536
537 #endif // wxUSE_TEXTCTRL
538
539 #endif
540 // _WX_TEXTCTRL_H_BASE_