src/stubs/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        textctrl.cpp
   3 // Purpose:     wxTextCtrl
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "textctrl.h"
  14 #endif
  15
  16 #include <sys/types.h>
  17 #include <sys/stat.h>
  18 #include <fstream.h>
  19
  20 #include "wx/textctrl.h"
  21 #include "wx/settings.h"
  22 #include "wx/filefn.h"
  23 #include "wx/utils.h"
  24
  25 #if defined(__BORLANDC__) && !defined(__WIN32__)
  26 #include <alloc.h>
  27 #else
  28 #ifndef __GNUWIN32__
  29 #include <malloc.h>
  30 #endif
  31 #endif
  32
  33 #if !USE_SHARED_LIBRARY
  34 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)
  35
  36 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  37         EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
  38 END_EVENT_TABLE()
  39 #endif
  40
  41 // Text item
  42 wxTextCtrl::wxTextCtrl()
  43 #ifndef NO_TEXT_WINDOW_STREAM
  44  :streambuf()
  45 #endif
  46 {
  47     m_fileName = "";
  48 }
  49
  50 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
  51                    const wxString& value,
  52            const wxPoint& pos,
  53            const wxSize& size, long style,
  54            const wxValidator& validator,
  55            const wxString& name)
  56 {
  57     m_fileName = "";
  58     SetName(name);
  59     SetValidator(validator);
  60     if (parent) parent->AddChild(this);
  61
  62     m_windowStyle = style;
  63
  64     if ( id == -1 )
  65             m_windowId = (int)NewControlId();
  66     else
  67             m_windowId = id;
  68
  69     return TRUE;
  70 }
  71
  72 wxString wxTextCtrl::GetValue() const
  73 {
  74     // TODO
  75     return wxString("");
  76 }
  77
  78 void wxTextCtrl::SetValue(const wxString& value)
  79 {
  80     // TODO
  81 }
  82
  83 void wxTextCtrl::SetSize(int x, int y, int width, int height, int sizeFlags)
  84 {
  85     // TODO
  86 }
  87
  88 // Clipboard operations
  89 void wxTextCtrl::Copy()
  90 {
  91     // TODO
  92 }
  93
  94 void wxTextCtrl::Cut()
  95 {
  96     // TODO
  97 }
  98
  99 void wxTextCtrl::Paste()
 100 {
 101     // TODO
 102 }
 103
 104 void wxTextCtrl::SetEditable(bool editable)
 105 {
 106     // TODO
 107 }
 108
 109 void wxTextCtrl::SetInsertionPoint(long pos)
 110 {
 111     // TODO
 112 }
 113
 114 void wxTextCtrl::SetInsertionPointEnd()
 115 {
 116     long pos = GetLastPosition();
 117     SetInsertionPoint(pos);
 118 }
 119
 120 long wxTextCtrl::GetInsertionPoint() const
 121 {
 122     // TODO
 123     return 0;
 124 }
 125
 126 long wxTextCtrl::GetLastPosition() const
 127 {
 128     // TODO
 129     return 0;
 130 }
 131
 132 void wxTextCtrl::Replace(long from, long to, const wxString& value)
 133 {
 134     // TODO
 135 }
 136
 137 void wxTextCtrl::Remove(long from, long to)
 138 {
 139     // TODO
 140 }
 141
 142 void wxTextCtrl::SetSelection(long from, long to)
 143 {
 144     // TODO
 145 }
 146
 147 bool wxTextCtrl::LoadFile(const wxString& file)
 148 {
 149     if (!wxFileExists(file))
 150         return FALSE;
 151
 152     m_fileName = file;
 153
 154     Clear();
 155
 156     ifstream input((char*) (const char*) file, ios::nocreate | ios::in);
 157
 158     if (!input.bad())
 159     {
 160         struct stat stat_buf;
 161         if (stat(file, &stat_buf) < 0)
 162             return FALSE;
 163         // This may need to be a bigger buffer than the file size suggests,
 164         // if it's a UNIX file. Give it an extra 1000 just in case.
 165         char *tmp_buffer = (char*)malloc((size_t)(stat_buf.st_size+1+1000));
 166         long no_lines = 0;
 167         long pos = 0;
 168         while (!input.eof() && input.peek() != EOF)
 169         {
 170             input.getline(wxBuffer, 500);
 171                 int len = strlen(wxBuffer);
 172                 wxBuffer[len] = 13;
 173                 wxBuffer[len+1] = 10;
 174                 wxBuffer[len+2] = 0;
 175                 strcpy(tmp_buffer+pos, wxBuffer);
 176                 pos += strlen(wxBuffer);
 177                 no_lines++;
 178          }
 179
 180          // TODO add line
 181
 182          free(tmp_buffer);
 183
 184          return TRUE;
 185     }
 186     return FALSE;
 187 }
 188
 189 // If file is null, try saved file name first
 190 // Returns TRUE if succeeds.
 191 bool wxTextCtrl::SaveFile(const wxString& file)
 192 {
 193     wxString theFile(file);
 194     if (theFile == "")
 195         theFile = m_fileName;
 196     if (theFile == "")
 197         return FALSE;
 198     m_fileName = theFile;
 199
 200     ofstream output((char*) (const char*) theFile);
 201     if (output.bad())
 202             return FALSE;
 203
 204     // TODO get and save text
 205
 206     return FALSE;
 207 }
 208
 209 void wxTextCtrl::WriteText(const wxString& text)
 210 {
 211     // TODO write text to control
 212 }
 213
 214 void wxTextCtrl::AppendText(const wxString& text)
 215 {
 216     // TODO append text to control
 217 }
 218
 219 void wxTextCtrl::Clear()
 220 {
 221     // TODO
 222 }
 223
 224 bool wxTextCtrl::IsModified() const
 225 {
 226     // TODO
 227     return FALSE;
 228 }
 229
 230 // Makes 'unmodified'
 231 void wxTextCtrl::DiscardEdits()
 232 {
 233     // TODO
 234 }
 235
 236 int wxTextCtrl::GetNumberOfLines() const
 237 {
 238     // TODO
 239     return 0;
 240 }
 241
 242 long wxTextCtrl::XYToPosition(long x, long y) const
 243 {
 244     // TODO
 245     return 0;
 246 }
 247
 248 void wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
 249 {
 250     // TODO
 251 }
 252
 253 void wxTextCtrl::ShowPosition(long pos)
 254 {
 255     // TODO
 256 }
 257
 258 int wxTextCtrl::GetLineLength(long lineNo) const
 259 {
 260     // TODO
 261     return 0;
 262 }
 263
 264 wxString wxTextCtrl::GetLineText(long lineNo) const
 265 {
 266     // TODO
 267     return wxString("");
 268 }
 269
 270 /*
 271  * Text item
 272  */
 273
 274 void wxTextCtrl::Command(wxCommandEvent & event)
 275 {
 276     SetValue (event.GetString());
 277     ProcessCommand (event);
 278 }
 279
 280 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
 281 {
 282     // By default, load the first file into the text window.
 283     if (event.GetNumberOfFiles() > 0)
 284     {
 285         LoadFile(event.GetFiles()[0]);
 286     }
 287 }
 288
 289 // The streambuf code was partly taken from chapter 3 by Jerry Schwarz of
 290 // AT&T's "C++ Lanuage System Release 3.0 Library Manual" - Stein Somers
 291
 292 //=========================================================================
 293 // Called then the buffer is full (gcc 2.6.3)
 294 // or when "endl" is output (Borland 4.5)
 295 //=========================================================================
 296 // Class declaration using multiple inheritance doesn't work properly for
 297 // Borland. See note in wb_text.h.
 298 #ifndef NO_TEXT_WINDOW_STREAM
 299 int wxTextCtrl::overflow(int c)
 300 {
 301   // Make sure there is a holding area
 302   if ( allocate()==EOF )
 303   {
 304     wxError("Streambuf allocation failed","Internal error");
 305     return EOF;
 306   }
 307
 308   // Verify that there are no characters in get area
 309   if ( gptr() && gptr() < egptr() )
 310   {
 311      wxError("Who's trespassing my get area?","Internal error");
 312      return EOF;
 313   }
 314
 315   // Reset get area
 316   setg(0,0,0);
 317
 318   // Make sure there is a put area
 319   if ( ! pptr() )
 320   {
 321 /* This doesn't seem to be fatal so comment out error message */
 322 //    wxError("Put area not opened","Internal error");
 323     setp( base(), base() );
 324   }
 325
 326   // Determine how many characters have been inserted but no consumed
 327   int plen = pptr() - pbase();
 328
 329   // Now Jerry relies on the fact that the buffer is at least 2 chars
 330   // long, but the holding area "may be as small as 1" ???
 331   // And we need an additional \0, so let's keep this inefficient but
 332   // safe copy.
 333
 334   // If c!=EOF, it is a character that must also be comsumed
 335   int xtra = c==EOF? 0 : 1;
 336
 337   // Write temporary C-string to wxTextWindow
 338   {
 339   char *txt = new char[plen+xtra+1];
 340   memcpy(txt, pbase(), plen);
 341   txt[plen] = (char)c;     // append c
 342   txt[plen+xtra] = '\0';   // append '\0' or overwrite c
 343     // If the put area already contained \0, output will be truncated there
 344   AppendText(txt);
 345     delete[] txt;
 346   }
 347
 348   // Reset put area
 349   setp(pbase(), epptr());
 350
 351 #if defined(__WATCOMC__)
 352   return __NOT_EOF;
 353 #elif defined(zapeof)     // HP-UX (all cfront based?)
 354   return zapeof(c);
 355 #else
 356   return c!=EOF ? c : 0;  // this should make everybody happy
 357 #endif
 358 }
 359
 360 //=========================================================================
 361 // called then "endl" is output (gcc) or then explicit sync is done (Borland)
 362 //=========================================================================
 363 int wxTextCtrl::sync()
 364 {
 365   // Verify that there are no characters in get area
 366   if ( gptr() && gptr() < egptr() )
 367   {
 368      wxError("Who's trespassing my get area?","Internal error");
 369      return EOF;
 370   }
 371
 372   if ( pptr() && pptr() > pbase() ) return overflow(EOF);
 373
 374   return 0;
 375 /* OLD CODE
 376   int len = pptr() - pbase();
 377   char *txt = new char[len+1];
 378   strncpy(txt, pbase(), len);
 379   txt[len] = '\0';
 380   (*this) << txt;
 381   setp(pbase(), epptr());
 382   delete[] txt;
 383   return 0;
 384 */
 385 }
 386
 387 //=========================================================================
 388 // Should not be called by a "ostream". Used by a "istream"
 389 //=========================================================================
 390 int wxTextCtrl::underflow()
 391 {
 392   return EOF;
 393 }
 394 #endif
 395
 396 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 397 {
 398     AppendText(s);
 399     return *this;
 400 }
 401
 402 wxTextCtrl& wxTextCtrl::operator<<(float f)
 403 {
 404     wxString str;
 405     str.Printf("%.2f", f);
 406     AppendText(str);
 407     return *this;
 408 }
 409
 410 wxTextCtrl& wxTextCtrl::operator<<(double d)
 411 {
 412     wxString str;
 413     str.Printf("%.2f", d);
 414     AppendText(str);
 415     return *this;
 416 }
 417
 418 wxTextCtrl& wxTextCtrl::operator<<(int i)
 419 {
 420     wxString str;
 421     str.Printf("%d", i);
 422     AppendText(str);
 423     return *this;
 424 }
 425
 426 wxTextCtrl& wxTextCtrl::operator<<(long i)
 427 {
 428     wxString str;
 429     str.Printf("%ld", i);
 430     AppendText(str);
 431     return *this;
 432 }
 433
 434 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 435 {
 436     char buf[2];
 437
 438     buf[0] = c;
 439     buf[1] = 0;
 440     AppendText(buf);
 441     return *this;
 442 }
 443