| 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 | #include "wx/intl.h" |
| 24 | |
| 25 | #include "wx/mac/private.h" |
| 26 | #ifndef __DARWIN__ |
| 27 | #include <Scrap.h> |
| 28 | #endif |
| 29 | |
| 30 | #define wxUSE_DATAOBJ 1 |
| 31 | |
| 32 | #include <string.h> |
| 33 | |
| 34 | // the trace mask we use with wxLogTrace() - call |
| 35 | // wxLog::AddTraceMask(TRACE_CLIPBOARD) to enable the trace messages from here |
| 36 | // (there will be a *lot* of them!) |
| 37 | static const wxChar *TRACE_CLIPBOARD = _T("clipboard"); |
| 38 | |
| 39 | void *wxGetClipboardData(wxDataFormat dataFormat, long *len) |
| 40 | { |
| 41 | #if !TARGET_CARBON |
| 42 | OSErr err = noErr ; |
| 43 | #else |
| 44 | OSStatus err = noErr ; |
| 45 | #endif |
| 46 | void * data = NULL ; |
| 47 | |
| 48 | switch (dataFormat.GetType()) |
| 49 | { |
| 50 | case wxDF_OEMTEXT: |
| 51 | dataFormat = wxDF_TEXT; |
| 52 | // fall through |
| 53 | |
| 54 | case wxDF_TEXT: |
| 55 | break; |
| 56 | default: |
| 57 | { |
| 58 | wxLogError(_("Unsupported clipboard format.")); |
| 59 | return NULL; |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | #if TARGET_CARBON |
| 64 | ScrapRef scrapRef; |
| 65 | |
| 66 | err = GetCurrentScrap( &scrapRef ); |
| 67 | if ( err != noTypeErr && err != memFullErr ) |
| 68 | { |
| 69 | ScrapFlavorFlags flavorFlags; |
| 70 | Size byteCount; |
| 71 | |
| 72 | if (( err = GetScrapFlavorFlags( scrapRef, dataFormat.GetFormatId(), &flavorFlags )) == noErr) |
| 73 | { |
| 74 | if (( err = GetScrapFlavorSize( scrapRef, dataFormat.GetFormatId(), &byteCount )) == noErr) |
| 75 | { |
| 76 | if ( dataFormat.GetType() == wxDF_TEXT ) |
| 77 | byteCount++ ; |
| 78 | |
| 79 | data = new char[ byteCount ] ; |
| 80 | if (( err = GetScrapFlavorData( scrapRef, dataFormat.GetFormatId(), &byteCount , data )) == noErr ) |
| 81 | { |
| 82 | *len = byteCount ; |
| 83 | if ( dataFormat.GetType() == wxDF_TEXT ) |
| 84 | ((char*)data)[byteCount] = 0 ; |
| 85 | } |
| 86 | else |
| 87 | { |
| 88 | delete[] ((char *)data) ; |
| 89 | data = NULL ; |
| 90 | } |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | #else |
| 96 | long offset ; |
| 97 | Handle datahandle = NewHandle(0) ; |
| 98 | HLock( datahandle ) ; |
| 99 | GetScrap( datahandle , dataFormat.GetFormatId() , &offset ) ; |
| 100 | HUnlock( datahandle ) ; |
| 101 | if ( GetHandleSize( datahandle ) > 0 ) |
| 102 | { |
| 103 | long byteCount = GetHandleSize( datahandle ) ; |
| 104 | if ( dataFormat.GetType() == wxDF_TEXT ) |
| 105 | data = new char[ byteCount + 1] ; |
| 106 | else |
| 107 | data = new char[ byteCount ] ; |
| 108 | |
| 109 | memcpy( (char*) data , (char*) *datahandle , byteCount ) ; |
| 110 | if ( dataFormat.GetType() == wxDF_TEXT ) |
| 111 | ((char*)data)[byteCount] = 0 ; |
| 112 | * len = byteCount ; |
| 113 | } |
| 114 | DisposeHandle( datahandle ) ; |
| 115 | #endif |
| 116 | if ( err ) |
| 117 | { |
| 118 | wxLogSysError(_("Failed to get clipboard data.")); |
| 119 | |
| 120 | return NULL ; |
| 121 | } |
| 122 | if ( dataFormat.GetType() == wxDF_TEXT && wxApp::s_macDefaultEncodingIsPC ) |
| 123 | { |
| 124 | wxMacConvertToPC((char*)data) ; |
| 125 | } |
| 126 | return data; |
| 127 | } |
| 128 | |
| 129 | |
| 130 | /* |
| 131 | * Generalized clipboard implementation by Matthew Flatt |
| 132 | */ |
| 133 | |
| 134 | IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject) |
| 135 | |
| 136 | wxClipboard::wxClipboard() |
| 137 | { |
| 138 | m_open = false ; |
| 139 | m_data = NULL ; |
| 140 | } |
| 141 | |
| 142 | wxClipboard::~wxClipboard() |
| 143 | { |
| 144 | if (m_data) |
| 145 | { |
| 146 | delete m_data; |
| 147 | m_data = (wxDataObject*) NULL; |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | void wxClipboard::Clear() |
| 152 | { |
| 153 | if (m_data) |
| 154 | { |
| 155 | delete m_data; |
| 156 | m_data = (wxDataObject*) NULL; |
| 157 | } |
| 158 | #if TARGET_CARBON |
| 159 | OSStatus err ; |
| 160 | err = ClearCurrentScrap( ); |
| 161 | #else |
| 162 | OSErr err ; |
| 163 | err = ZeroScrap( ); |
| 164 | #endif |
| 165 | if ( err ) |
| 166 | { |
| 167 | wxLogSysError(_("Failed to empty the clipboard.")); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | bool wxClipboard::Flush() |
| 172 | { |
| 173 | return FALSE; |
| 174 | } |
| 175 | |
| 176 | bool wxClipboard::Open() |
| 177 | { |
| 178 | wxCHECK_MSG( !m_open, FALSE, wxT("clipboard already open") ); |
| 179 | m_open = true ; |
| 180 | return true ; |
| 181 | } |
| 182 | |
| 183 | bool wxClipboard::IsOpened() const |
| 184 | { |
| 185 | return m_open; |
| 186 | } |
| 187 | |
| 188 | bool wxClipboard::SetData( wxDataObject *data ) |
| 189 | { |
| 190 | wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") ); |
| 191 | |
| 192 | wxCHECK_MSG( data, FALSE, wxT("data is invalid") ); |
| 193 | |
| 194 | Clear(); |
| 195 | |
| 196 | return AddData( data ); |
| 197 | } |
| 198 | |
| 199 | bool wxClipboard::AddData( wxDataObject *data ) |
| 200 | { |
| 201 | wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") ); |
| 202 | |
| 203 | wxCHECK_MSG( data, FALSE, wxT("data is invalid") ); |
| 204 | |
| 205 | wxDataFormat format = data->GetPreferredFormat(); |
| 206 | |
| 207 | /* we can only store one wxDataObject */ |
| 208 | Clear(); |
| 209 | |
| 210 | m_data = data; |
| 211 | |
| 212 | /* get formats from wxDataObjects */ |
| 213 | wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ]; |
| 214 | m_data->GetAllFormats( array ); |
| 215 | |
| 216 | for (size_t i = 0; i < m_data->GetFormatCount(); i++) |
| 217 | { |
| 218 | wxLogTrace( TRACE_CLIPBOARD, |
| 219 | wxT("wxClipboard now supports atom %s"), |
| 220 | array[i].GetId().c_str() ); |
| 221 | |
| 222 | #if !TARGET_CARBON |
| 223 | OSErr err = noErr ; |
| 224 | #else |
| 225 | OSStatus err = noErr ; |
| 226 | #endif |
| 227 | |
| 228 | switch ( array[i].GetType() ) |
| 229 | { |
| 230 | case wxDF_TEXT: |
| 231 | case wxDF_OEMTEXT: |
| 232 | { |
| 233 | wxTextDataObject* textDataObject = (wxTextDataObject*) data; |
| 234 | wxString str(textDataObject->GetText()); |
| 235 | wxString mac ; |
| 236 | if ( wxApp::s_macDefaultEncodingIsPC ) |
| 237 | { |
| 238 | mac = wxMacMakeMacStringFromPC(textDataObject->GetText()) ; |
| 239 | } |
| 240 | else |
| 241 | { |
| 242 | mac = textDataObject->GetText() ; |
| 243 | } |
| 244 | #if !TARGET_CARBON |
| 245 | err = PutScrap( mac.Length() , 'TEXT' , mac.c_str() ) ; |
| 246 | #else |
| 247 | ScrapRef scrap; |
| 248 | err = GetCurrentScrap (&scrap); |
| 249 | if ( !err ) |
| 250 | { |
| 251 | err = PutScrapFlavor (scrap, 'TEXT', 0, mac.Length(), mac.c_str()); |
| 252 | } |
| 253 | #endif |
| 254 | } |
| 255 | break ; |
| 256 | |
| 257 | #if wxUSE_DRAG_AND_DROP |
| 258 | case wxDF_METAFILE: |
| 259 | { |
| 260 | wxMetafileDataObject* metaFileDataObject = |
| 261 | (wxMetafileDataObject*) data; |
| 262 | wxMetafile metaFile = metaFileDataObject->GetMetafile(); |
| 263 | PicHandle pict = (PicHandle) metaFile.GetHMETAFILE() ; |
| 264 | HLock( (Handle) pict ) ; |
| 265 | #if !TARGET_CARBON |
| 266 | err = PutScrap( GetHandleSize( (Handle) pict ) , 'PICT' , *pict ) ; |
| 267 | #else |
| 268 | ScrapRef scrap; |
| 269 | err = GetCurrentScrap (&scrap); |
| 270 | if ( !err ) |
| 271 | { |
| 272 | err = PutScrapFlavor (scrap, 'PICT', 0, GetHandleSize((Handle) pict), *pict); |
| 273 | } |
| 274 | #endif |
| 275 | HUnlock( (Handle) pict ) ; |
| 276 | } |
| 277 | break ; |
| 278 | #endif |
| 279 | case wxDF_BITMAP: |
| 280 | case wxDF_DIB: |
| 281 | default: |
| 282 | break ; |
| 283 | } |
| 284 | |
| 285 | } |
| 286 | |
| 287 | delete[] array; |
| 288 | |
| 289 | return true ; |
| 290 | } |
| 291 | |
| 292 | void wxClipboard::Close() |
| 293 | { |
| 294 | m_open = false ; |
| 295 | } |
| 296 | |
| 297 | bool wxClipboard::IsSupported( const wxDataFormat &dataFormat ) |
| 298 | { |
| 299 | if ( m_data ) |
| 300 | { |
| 301 | return m_data->IsSupported( dataFormat ) ; |
| 302 | } |
| 303 | #if TARGET_CARBON |
| 304 | OSStatus err = noErr; |
| 305 | ScrapRef scrapRef; |
| 306 | |
| 307 | err = GetCurrentScrap( &scrapRef ); |
| 308 | if ( err != noTypeErr && err != memFullErr ) |
| 309 | { |
| 310 | ScrapFlavorFlags flavorFlags; |
| 311 | Size byteCount; |
| 312 | |
| 313 | if (( err = GetScrapFlavorFlags( scrapRef, dataFormat.GetFormatId(), &flavorFlags )) == noErr) |
| 314 | { |
| 315 | if (( err = GetScrapFlavorSize( scrapRef, dataFormat.GetFormatId(), &byteCount )) == noErr) |
| 316 | { |
| 317 | return TRUE ; |
| 318 | } |
| 319 | } |
| 320 | } |
| 321 | return FALSE; |
| 322 | |
| 323 | #else |
| 324 | long offset ; |
| 325 | Handle datahandle = NewHandle(0) ; |
| 326 | HLock( datahandle ) ; |
| 327 | GetScrap( datahandle , dataFormat.GetFormatId() , &offset ) ; |
| 328 | HUnlock( datahandle ) ; |
| 329 | bool hasData = GetHandleSize( datahandle ) > 0 ; |
| 330 | DisposeHandle( datahandle ) ; |
| 331 | return hasData ; |
| 332 | #endif |
| 333 | } |
| 334 | |
| 335 | bool wxClipboard::GetData( wxDataObject& data ) |
| 336 | { |
| 337 | wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") ); |
| 338 | |
| 339 | int formatcount = data.GetFormatCount() + 1 ; |
| 340 | wxDataFormat *array = new wxDataFormat[ formatcount ]; |
| 341 | array[0] = data.GetPreferredFormat(); |
| 342 | data.GetAllFormats( &array[1] ); |
| 343 | |
| 344 | bool transferred = false ; |
| 345 | |
| 346 | if ( m_data ) |
| 347 | { |
| 348 | for (size_t i = 0; !transferred && i < formatcount ; i++) |
| 349 | { |
| 350 | wxDataFormat format = array[i] ; |
| 351 | if ( m_data->IsSupported( format ) ) |
| 352 | { |
| 353 | int size = m_data->GetDataSize( format ); |
| 354 | transferred = true ; |
| 355 | |
| 356 | if (size == 0) |
| 357 | { |
| 358 | data.SetData(format , 0 , 0 ) ; |
| 359 | } |
| 360 | else |
| 361 | { |
| 362 | char *d = new char[size]; |
| 363 | m_data->GetDataHere( format , (void*) d ); |
| 364 | data.SetData( format , size , d ) ; |
| 365 | delete[] d ; |
| 366 | } |
| 367 | } |
| 368 | } |
| 369 | } |
| 370 | /* get formats from wxDataObjects */ |
| 371 | if ( !transferred ) |
| 372 | { |
| 373 | for (size_t i = 0; !transferred && i < formatcount ; i++) |
| 374 | { |
| 375 | wxDataFormat format = array[i] ; |
| 376 | |
| 377 | switch ( format.GetType() ) |
| 378 | { |
| 379 | case wxDF_TEXT: |
| 380 | case wxDF_OEMTEXT: |
| 381 | { |
| 382 | long len ; |
| 383 | char* s = (char*)wxGetClipboardData(format, &len ); |
| 384 | if ( s ) |
| 385 | { |
| 386 | data.SetData( format , len , s ) ; |
| 387 | delete [] s; |
| 388 | |
| 389 | transferred = true ; |
| 390 | } |
| 391 | } |
| 392 | break ; |
| 393 | |
| 394 | default : |
| 395 | break ; |
| 396 | } |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | delete[] array ; |
| 401 | return transferred ; |
| 402 | } |