src/mac/carbon/clipbrd.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        clipbrd.cpp
   3 // Purpose:     Clipboard functionality
   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
  14 #pragma implementation "clipbrd.h"
  15 #endif
  16
  17 #include "wx/app.h"
  18 #include "wx/frame.h"
  19 #include "wx/bitmap.h"
  20 #include "wx/utils.h"
  21 #include "wx/metafile.h"
  22 #include "wx/clipbrd.h"
  23
  24 #include <string.h>
  25
  26 // open/close
  27 bool wxOpenClipboard()
  28 {
  29     return TRUE;
  30 }
  31
  32 bool wxCloseClipboard()
  33 {
  34     return TRUE;
  35 }
  36
  37 bool wxIsClipboardOpened()
  38 {
  39      return TRUE;
  40 }
  41
  42 // get/set data
  43
  44 bool wxEmptyClipboard()
  45 {
  46         ZeroScrap() ;
  47     return TRUE;
  48 }
  49
  50 bool wxSetClipboardData(wxDataFormat dataFormat,const void *data,int width , int height)
  51 {
  52     return FALSE;
  53 }
  54
  55 void *wxGetClipboardData(wxDataFormat dataFormat, long *len)
  56 {
  57     return NULL;
  58 }
  59
  60
  61 // clipboard formats
  62
  63 bool wxIsClipboardFormatAvailable(wxDataFormat dataFormat)
  64 {
  65      return FALSE;
  66 }
  67
  68 wxDataFormat wxEnumClipboardFormats(wxDataFormat dataFormat)
  69 {
  70     return wxDataFormat();
  71 }
  72
  73 int  wxRegisterClipboardFormat(wxChar *formatName)
  74 {
  75     return 0;
  76 }
  77
  78 bool wxGetClipboardFormatName(wxDataFormat dataFormat, wxChar *formatName, int maxCount)
  79 {
  80     return FALSE;
  81 }
  82
  83 /*
  84  * Generalized clipboard implementation by Matthew Flatt
  85  */
  86
  87 IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject)
  88
  89 wxClipboard::wxClipboard()
  90 {
  91     m_clearOnExit = FALSE;
  92 }
  93
  94 wxClipboard::~wxClipboard()
  95 {
  96     if ( m_clearOnExit )
  97     {
  98         Clear();
  99     }
 100 }
 101
 102 void wxClipboard::Clear()
 103 {
 104 }
 105
 106 bool wxClipboard::Flush()
 107 {
 108     return FALSE;
 109 }
 110
 111 bool wxClipboard::Open()
 112 {
 113     return wxOpenClipboard();
 114 }
 115
 116 bool wxClipboard::IsOpened() const
 117 {
 118     return wxIsClipboardOpened();
 119 }
 120
 121 static int FormatStringToID(char *str)
 122 {
 123   if (!strcmp(str, "TEXT"))
 124     return wxDF_TEXT;
 125
 126   return wxRegisterClipboardFormat(str);
 127 }
 128
 129 bool wxClipboard::SetData( wxDataObject *data )
 130 {
 131     (void)wxEmptyClipboard();
 132
 133     if ( data )
 134         return AddData(data);
 135     else
 136         return TRUE;
 137 }
 138
 139 bool wxClipboard::AddData( wxDataObject *data )
 140 {
 141     wxCHECK_MSG( data, FALSE, wxT("data is invalid") );
 142
 143 #if wxUSE_DATAOBJ
 144     wxCHECK_MSG( wxIsClipboardOpened(), FALSE, wxT("clipboard not open") );
 145
 146     wxDataFormat format = data->GetFormat();
 147
 148     switch ( format )
 149     {
 150         case wxDF_TEXT:
 151         case wxDF_OEMTEXT:
 152         {
 153             wxTextDataObject* textDataObject = (wxTextDataObject*) data;
 154             wxString str(textDataObject->GetText());
 155             return wxSetClipboardData(format, str.c_str());
 156         }
 157
 158         case wxDF_BITMAP:
 159         case wxDF_DIB:
 160         {
 161             wxBitmapDataObject* bitmapDataObject = (wxBitmapDataObject*) data;
 162             wxBitmap bitmap(bitmapDataObject->GetBitmap());
 163             return wxSetClipboardData(data->GetFormat(), &bitmap);
 164         }
 165
 166 #if wxUSE_METAFILE
 167         case wxDF_METAFILE:
 168         {
 169             wxMetafileDataObject* metaFileDataObject =
 170                 (wxMetafileDataObject*) data;
 171             wxMetafile metaFile = metaFileDataObject->GetMetafile();
 172             return wxSetClipboardData(wxDF_METAFILE, &metaFile,
 173                                       metaFileDataObject->GetWidth(),
 174                                       metaFileDataObject->GetHeight());
 175         }
 176 #endif // wxUSE_METAFILE
 177
 178         default:
 179             return wxSetClipboardData(data);
 180     }
 181 #else // !wxUSE_DATAOBJ
 182     return FALSE;
 183 #endif
 184 }
 185
 186 void wxClipboard::Close()
 187 {
 188     wxCloseClipboard();
 189 }
 190
 191 bool wxClipboard::IsSupported( wxDataFormat format )
 192 {
 193     return wxIsClipboardFormatAvailable(format);
 194 }
 195
 196 bool wxClipboard::GetData( wxDataObject& data )
 197 {
 198 #if wxUSE_DATAOBJ
 199     wxCHECK_MSG( wxIsClipboardOpened(), FALSE, wxT("clipboard not open") );
 200
 201     wxDataFormat format = data.GetFormat();
 202     switch ( format )
 203     {
 204         case wxDF_TEXT:
 205         case wxDF_OEMTEXT:
 206         {
 207             wxTextDataObject& textDataObject = (wxTextDataObject &)data;
 208             char* s = (char*)wxGetClipboardData(format);
 209             if ( !s )
 210                 return FALSE;
 211
 212             textDataObject.SetText(s);
 213             delete [] s;
 214
 215             return TRUE;
 216         }
 217
 218         case wxDF_BITMAP:
 219         case wxDF_DIB:
 220         {
 221             wxBitmapDataObject& bitmapDataObject = (wxBitmapDataObject &)data;
 222             wxBitmap* bitmap = (wxBitmap *)wxGetClipboardData(data->GetFormat());
 223             if ( !bitmap )
 224                 return FALSE;
 225
 226             bitmapDataObject.SetBitmap(*bitmap);
 227             delete bitmap;
 228
 229             return TRUE;
 230         }
 231 #if wxUSE_METAFILE
 232         case wxDF_METAFILE:
 233         {
 234             wxMetafileDataObject& metaFileDataObject = (wxMetafileDataObject &)data;
 235             wxMetafile* metaFile = (wxMetafile *)wxGetClipboardData(wxDF_METAFILE);
 236             if ( !metaFile )
 237                 return FALSE;
 238
 239             metaFileDataObject.SetMetafile(*metaFile);
 240             delete metaFile;
 241
 242             return TRUE;
 243         }
 244 #endif // wxUSE_METAFILE
 245     }
 246 #else // !wxUSE_DATAOBJ
 247     wxFAIL_MSG( wxT("no clipboard implementation") );
 248 #endif
 249     return FALSE;
 250 }
 251 /*
 252 void wxClipboard::SetClipboardClient(wxClipboardClient *client, long time)
 253 {
 254   bool got_selection;
 255
 256   if (clipOwner)
 257     clipOwner->BeingReplaced();
 258   clipOwner = client;
 259   if (cbString) {
 260     delete[] cbString;
 261     cbString = NULL;
 262   }
 263
 264   if (wxOpenClipboard()) {
 265     char **formats, *data;
 266          int i;
 267     int ftype;
 268     long size;
 269
 270     formats = clipOwner->formats.ListToArray(FALSE);
 271     for (i = clipOwner->formats.Number(); i--; ) {
 272       ftype = FormatStringToID(formats[i]);
 273       data = clipOwner->GetData(formats[i], &size);
 274       if (!wxSetClipboardData(ftype, (wxObject *)data, size, 1)) {
 275         got_selection = FALSE;
 276         break;
 277       }
 278     }
 279
 280     if (i < 0)
 281       got_selection = wxCloseClipboard();
 282   } else
 283     got_selection = FALSE;
 284
 285   got_selection = FALSE; // Assume another process takes over
 286
 287   if (!got_selection) {
 288     clipOwner->BeingReplaced();
 289          clipOwner = NULL;
 290   }
 291 }
 292
 293 wxClipboardClient *wxClipboard::GetClipboardClient()
 294 {
 295   return clipOwner;
 296 }
 297
 298 void wxClipboard::SetClipboardString(char *str, long time)
 299 {
 300   bool got_selection;
 301
 302   if (clipOwner) {
 303     clipOwner->BeingReplaced();
 304     clipOwner = NULL;
 305   }
 306   if (cbString)
 307     delete[] cbString;
 308
 309   cbString = str;
 310
 311   if (wxOpenClipboard()) {
 312     if (!wxSetClipboardData(wxDF_TEXT, (wxObject *)str))
 313       got_selection = FALSE;
 314     else
 315                 got_selection = wxCloseClipboard();
 316   } else
 317     got_selection = FALSE;
 318
 319   got_selection = FALSE; // Assume another process takes over
 320
 321   if (!got_selection) {
 322     delete[] cbString;
 323     cbString = NULL;
 324   }
 325 }
 326 char *wxClipboard::GetClipboardString(long time)
 327 {
 328   char *str;
 329   long length;
 330
 331   str = GetClipboardData("TEXT", &length, time);
 332   if (!str) {
 333     str = new char[1];
 334     *str = 0;
 335   }
 336
 337   return str;
 338 }
 339
 340
 341 char *wxClipboard::GetClipboardData(char *format, long *length, long time)
 342 {
 343   if (clipOwner)  {
 344          if (clipOwner->formats.Member(format))
 345       return clipOwner->GetData(format, length);
 346     else
 347       return NULL;
 348   } else if (cbString) {
 349     if (!strcmp(format, "TEXT"))
 350       return copystring(cbString);
 351     else
 352       return NULL;
 353   } else {
 354     if (wxOpenClipboard()) {
 355       receivedString = (char *)wxGetClipboardData(FormatStringToID(format),
 356                                                   length);
 357       wxCloseClipboard();
 358     } else
 359       receivedString = NULL;
 360
 361     return receivedString;
 362   }
 363 }
 364 */
 365