src/mac/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 #ifndef __WXMAC__
  17 #include <sys/types.h>
  18 #include <sys/stat.h>
  19 #else
  20 #include <stat.h>
  21 #endif
  22 #include <fstream.h>
  23
  24 #include "wx/textctrl.h"
  25 #include "wx/settings.h"
  26 #include "wx/filefn.h"
  27 #include "wx/utils.h"
  28
  29 #if defined(__BORLANDC__) && !defined(__WIN32__)
  30 #include <alloc.h>
  31 #else
  32 #ifndef __MWERKS__
  33 #ifndef __GNUWIN32__
  34 #include <malloc.h>
  35 #endif
  36 #endif
  37 #endif
  38
  39 #if !USE_SHARED_LIBRARY
  40 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)
  41
  42 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  43         EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
  44 END_EVENT_TABLE()
  45 #endif
  46
  47 // Text item
  48 wxTextCtrl::wxTextCtrl()
  49 #ifndef NO_TEXT_WINDOW_STREAM
  50  :streambuf()
  51 #endif
  52 {
  53     m_fileName = "";
  54 }
  55
  56 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
  57                    const wxString& value,
  58            const wxPoint& pos,
  59            const wxSize& size, long style,
  60            const wxValidator& validator,
  61            const wxString& name)
  62 {
  63     m_fileName = "";
  64     SetName(name);
  65     SetValidator(validator);
  66     if (parent) parent->AddChild(this);
  67
  68     m_windowStyle = style;
  69
  70     if ( id == -1 )
  71             m_windowId = (int)NewControlId();
  72     else
  73             m_windowId = id;
  74
  75     return TRUE;
  76 }
  77
  78 wxString wxTextCtrl::GetValue() const
  79 {
  80     // TODO
  81     return wxString("");
  82 }
  83
  84 void wxTextCtrl::SetValue(const wxString& value)
  85 {
  86     // TODO
  87 }
  88
  89 void wxTextCtrl::SetSize(int x, int y, int width, int height, int sizeFlags)
  90 {
  91     // TODO
  92 }
  93
  94 // Clipboard operations
  95 void wxTextCtrl::Copy()
  96 {
  97     // TODO
  98 }
  99
 100 void wxTextCtrl::Cut()
 101 {
 102     // TODO
 103 }
 104
 105 void wxTextCtrl::Paste()
 106 {
 107     // TODO
 108 }
 109
 110 void wxTextCtrl::SetEditable(bool editable)
 111 {
 112     // TODO
 113 }
 114
 115 void wxTextCtrl::SetInsertionPoint(long pos)
 116 {
 117     // TODO
 118 }
 119
 120 void wxTextCtrl::SetInsertionPointEnd()
 121 {
 122     long pos = GetLastPosition();
 123     SetInsertionPoint(pos);
 124 }
 125
 126 long wxTextCtrl::GetInsertionPoint() const
 127 {
 128     // TODO
 129     return 0;
 130 }
 131
 132 long wxTextCtrl::GetLastPosition() const
 133 {
 134     // TODO
 135     return 0;
 136 }
 137
 138 void wxTextCtrl::Replace(long from, long to, const wxString& value)
 139 {
 140     // TODO
 141 }
 142
 143 void wxTextCtrl::Remove(long from, long to)
 144 {
 145     // TODO
 146 }
 147
 148 void wxTextCtrl::SetSelection(long from, long to)
 149 {
 150     // TODO
 151 }
 152
 153 bool wxTextCtrl::LoadFile(const wxString& file)
 154 {
 155     if (!wxFileExists(file))
 156         return FALSE;
 157
 158     m_fileName = file;
 159
 160     Clear();
 161
 162 #ifndef __WXMAC__
 163     ifstream input((char*) (const char*) file, ios::nocreate | ios::in);
 164 #else
 165     ifstream input((char*) (const char*) file, ios::in);
 166 #endif
 167     if (!input.bad())
 168     {
 169         struct stat stat_buf;
 170         if (stat(file, &stat_buf) < 0)
 171             return FALSE;
 172         // This may need to be a bigger buffer than the file size suggests,
 173         // if it's a UNIX file. Give it an extra 1000 just in case.
 174         char *tmp_buffer = (char*)malloc((size_t)(stat_buf.st_size+1+1000));
 175         long no_lines = 0;
 176         long pos = 0;
 177         while (!input.eof() && input.peek() != EOF)
 178         {
 179             input.getline(wxBuffer, 500);
 180                 int len = strlen(wxBuffer);
 181                 wxBuffer[len] = 13;
 182                 wxBuffer[len+1] = 10;
 183                 wxBuffer[len+2] = 0;
 184                 strcpy(tmp_buffer+pos, wxBuffer);
 185                 pos += strlen(wxBuffer);
 186                 no_lines++;
 187          }
 188
 189          // TODO add line
 190
 191          free(tmp_buffer);
 192
 193          return TRUE;
 194     }
 195     return FALSE;
 196 }
 197
 198 // If file is null, try saved file name first
 199 // Returns TRUE if succeeds.
 200 bool wxTextCtrl::SaveFile(const wxString& file)
 201 {
 202     wxString theFile(file);
 203     if (theFile == "")
 204         theFile = m_fileName;
 205     if (theFile == "")
 206         return FALSE;
 207     m_fileName = theFile;
 208
 209     ofstream output((char*) (const char*) theFile);
 210     if (output.bad())
 211             return FALSE;
 212
 213     // TODO get and save text
 214
 215     return FALSE;
 216 }
 217
 218 void wxTextCtrl::WriteText(const wxString& text)
 219 {
 220     // TODO write text to control
 221 }
 222
 223 void wxTextCtrl::Clear()
 224 {
 225     // TODO
 226 }
 227
 228 bool wxTextCtrl::IsModified() const
 229 {
 230     // TODO
 231     return FALSE;
 232 }
 233
 234 // Makes 'unmodified'
 235 void wxTextCtrl::DiscardEdits()
 236 {
 237     // TODO
 238 }
 239
 240 int wxTextCtrl::GetNumberOfLines() const
 241 {
 242     // TODO
 243     return 0;
 244 }
 245
 246 long wxTextCtrl::XYToPosition(long x, long y) const
 247 {
 248     // TODO
 249     return 0;
 250 }
 251
 252 void wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
 253 {
 254     // TODO
 255 }
 256
 257 void wxTextCtrl::ShowPosition(long pos)
 258 {
 259     // TODO
 260 }
 261
 262 int wxTextCtrl::GetLineLength(long lineNo) const
 263 {
 264     // TODO
 265     return 0;
 266 }
 267
 268 wxString wxTextCtrl::GetLineText(long lineNo) const
 269 {
 270     // TODO
 271     return wxString("");
 272 }
 273
 274 /*
 275  * Text item
 276  */
 277
 278 void wxTextCtrl::Command(wxCommandEvent & event)
 279 {
 280     SetValue (event.GetString());
 281     ProcessCommand (event);
 282 }
 283
 284 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
 285 {
 286     // By default, load the first file into the text window.
 287     if (event.GetNumberOfFiles() > 0)
 288     {
 289         LoadFile(event.GetFiles()[0]);
 290     }
 291 }
 292
 293 // The streambuf code was partly taken from chapter 3 by Jerry Schwarz of
 294 // AT&T's "C++ Lanuage System Release 3.0 Library Manual" - Stein Somers
 295
 296 //=========================================================================
 297 // Called then the buffer is full (gcc 2.6.3)
 298 // or when "endl" is output (Borland 4.5)
 299 //=========================================================================
 300 // Class declaration using multiple inheritance doesn't work properly for
 301 // Borland. See note in wb_text.h.
 302 #ifndef NO_TEXT_WINDOW_STREAM
 303 int wxTextCtrl::overflow(int c)
 304 {
 305   // Make sure there is a holding area
 306   if ( allocate()==EOF )
 307   {
 308     wxError("Streambuf allocation failed","Internal error");
 309     return EOF;
 310   }
 311
 312   // Verify that there are no characters in get area
 313   if ( gptr() && gptr() < egptr() )
 314   {
 315      wxError("Who's trespassing my get area?","Internal error");
 316      return EOF;
 317   }
 318
 319   // Reset get area
 320   setg(0,0,0);
 321
 322   // Make sure there is a put area
 323   if ( ! pptr() )
 324   {
 325 /* This doesn't seem to be fatal so comment out error message */
 326 //    wxError("Put area not opened","Internal error");
 327     setp( base(), base() );
 328   }
 329
 330   // Determine how many characters have been inserted but no consumed
 331   int plen = pptr() - pbase();
 332
 333   // Now Jerry relies on the fact that the buffer is at least 2 chars
 334   // long, but the holding area "may be as small as 1" ???
 335   // And we need an additional \0, so let's keep this inefficient but
 336   // safe copy.
 337
 338   // If c!=EOF, it is a character that must also be comsumed
 339   int xtra = c==EOF? 0 : 1;
 340
 341   // Write temporary C-string to wxTextWindow
 342   {
 343   char *txt = new char[plen+xtra+1];
 344   memcpy(txt, pbase(), plen);
 345   txt[plen] = (char)c;     // append c
 346   txt[plen+xtra] = '\0';   // append '\0' or overwrite c
 347     // If the put area already contained \0, output will be truncated there
 348   WriteText(txt);
 349     delete[] txt;
 350   }
 351
 352   // Reset put area
 353   setp(pbase(), epptr());
 354
 355 #if defined(__WATCOMC__)
 356   return __NOT_EOF;
 357 #elif defined(zapeof)     // HP-UX (all cfront based?)
 358   return zapeof(c);
 359 #else
 360   return c!=EOF ? c : 0;  // this should make everybody happy
 361 #endif
 362 }
 363
 364 //=========================================================================
 365 // called then "endl" is output (gcc) or then explicit sync is done (Borland)
 366 //=========================================================================
 367 int wxTextCtrl::sync()
 368 {
 369   // Verify that there are no characters in get area
 370   if ( gptr() && gptr() < egptr() )
 371   {
 372      wxError("Who's trespassing my get area?","Internal error");
 373      return EOF;
 374   }
 375
 376   if ( pptr() && pptr() > pbase() ) return overflow(EOF);
 377
 378   return 0;
 379 /* OLD CODE
 380   int len = pptr() - pbase();
 381   char *txt = new char[len+1];
 382   strncpy(txt, pbase(), len);
 383   txt[len] = '\0';
 384   (*this) << txt;
 385   setp(pbase(), epptr());
 386   delete[] txt;
 387   return 0;
 388 */
 389 }
 390
 391 //=========================================================================
 392 // Should not be called by a "ostream". Used by a "istream"
 393 //=========================================================================
 394 int wxTextCtrl::underflow()
 395 {
 396   return EOF;
 397 }
 398 #endif
 399
 400 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 401 {
 402     WriteText(s);
 403     return *this;
 404 }
 405
 406 wxTextCtrl& wxTextCtrl::operator<<(float f)
 407 {
 408     wxString str;
 409     str.Printf("%.2f", f);
 410     WriteText(str);
 411     return *this;
 412 }
 413
 414 wxTextCtrl& wxTextCtrl::operator<<(double d)
 415 {
 416     wxString str;
 417     str.Printf("%.2f", d);
 418     WriteText(str);
 419     return *this;
 420 }
 421
 422 wxTextCtrl& wxTextCtrl::operator<<(int i)
 423 {
 424     wxString str;
 425     str.Printf("%d", i);
 426     WriteText(str);
 427     return *this;
 428 }
 429
 430 wxTextCtrl& wxTextCtrl::operator<<(long i)
 431 {
 432     wxString str;
 433     str.Printf("%ld", i);
 434     WriteText(str);
 435     return *this;
 436 }
 437
 438 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 439 {
 440     char buf[2];
 441
 442     buf[0] = c;
 443     buf[1] = 0;
 444     WriteText(buf);
 445     return *this;
 446 }
 447