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1/////////////////////////////////////////////////////////////////////////////
2// Name: clipbrd.cpp
3// Purpose: Clipboard functionality
a31a5f85 4// Author: Stefan Csomor
e9576ca5 5// Modified by:
a31a5f85 6// Created: 1998-01-01
e9576ca5 7// RCS-ID: $Id$
a31a5f85 8// Copyright: (c) Stefan Csomor
ed60b502 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
12#ifdef __GNUG__
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13#pragma implementation "clipbrd.h"
14#endif
15
16#include "wx/app.h"
17#include "wx/frame.h"
18#include "wx/bitmap.h"
19#include "wx/utils.h"
20#include "wx/metafile.h"
21#include "wx/clipbrd.h"
5fde6fcc 22#include "wx/intl.h"
48d2ab90 23#include "wx/log.h"
e9576ca5 24
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25#ifndef __DARWIN__
26#include <Scrap.h>
27#endif
9c3c5849 28#include "wx/mac/uma.h"
76a5e5d2 29
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30#define wxUSE_DATAOBJ 1
31
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32#include <string.h>
33
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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!)
37static const wxChar *TRACE_CLIPBOARD = _T("clipboard");
2f1ae414 38
f0822896 39void *wxGetClipboardData(wxDataFormat dataFormat, long *len)
e9576ca5 40{
2f1ae414 41#if !TARGET_CARBON
ed60b502 42 OSErr err = noErr ;
2f1ae414 43#else
ed60b502 44 OSStatus err = noErr ;
2f1ae414 45#endif
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46 void * data = NULL ;
47 Size byteCount;
e135f093 48
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49 switch (dataFormat.GetType())
50 {
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51 case wxDF_OEMTEXT:
52 dataFormat = wxDF_TEXT;
53 // fall through
e135f093 54
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55 case wxDF_TEXT:
56 break;
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57 case wxDF_UNICODETEXT:
58 break;
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59 case wxDF_BITMAP :
60 case wxDF_METAFILE :
61 break ;
62 default:
63 {
64 wxLogError(_("Unsupported clipboard format."));
65 return NULL;
66 }
97af5088 67 }
e135f093 68
97af5088 69#if TARGET_CARBON
ed60b502 70 ScrapRef scrapRef;
e135f093 71
ed60b502 72 err = GetCurrentScrap( &scrapRef );
e135f093 73 if ( err != noTypeErr && err != memFullErr )
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74 {
75 ScrapFlavorFlags flavorFlags;
e135f093 76
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77 if (( err = GetScrapFlavorFlags( scrapRef, dataFormat.GetFormatId(), &flavorFlags )) == noErr)
78 {
79 if (( err = GetScrapFlavorSize( scrapRef, dataFormat.GetFormatId(), &byteCount )) == noErr)
80 {
427ff662 81 Size allocSize = byteCount ;
e135f093 82 if ( dataFormat.GetType() == wxDF_TEXT )
427ff662 83 allocSize += 1 ;
e135f093 84 else if ( dataFormat.GetType() == wxDF_UNICODETEXT )
427ff662 85 allocSize += 2 ;
e135f093 86
427ff662 87 data = new char[ allocSize ] ;
e135f093 88
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89 if (( err = GetScrapFlavorData( scrapRef, dataFormat.GetFormatId(), &byteCount , data )) == noErr )
90 {
427ff662 91 *len = allocSize ;
e135f093 92 if ( dataFormat.GetType() == wxDF_TEXT )
e40298d5 93 ((char*)data)[byteCount] = 0 ;
e135f093 94 if ( dataFormat.GetType() == wxDF_UNICODETEXT )
427ff662 95 ((wxChar*)data)[byteCount/2] = 0 ;
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96 }
97 else
98 {
99 delete[] ((char *)data) ;
100 data = NULL ;
101 }
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102 }
103 }
104 }
e135f093 105
97af5088 106#else
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107 long offset ;
108 Handle datahandle = NewHandle(0) ;
109 HLock( datahandle ) ;
110 GetScrap( datahandle , dataFormat.GetFormatId() , &offset ) ;
111 HUnlock( datahandle ) ;
112 if ( GetHandleSize( datahandle ) > 0 )
113 {
e40298d5 114 byteCount = GetHandleSize( datahandle ) ;
427ff662 115 Size allocSize = byteCount ;
e135f093 116 if ( dataFormat.GetType() == wxDF_TEXT )
427ff662 117 allocSize += 1 ;
e135f093 118 else if ( dataFormat.GetType() == wxDF_UNICODETEXT )
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119 allocSize += 2 ;
120
121 data = new char[ allocSize ] ;
122
e40298d5 123 memcpy( (char*) data , (char*) *datahandle , byteCount ) ;
e135f093 124 if ( dataFormat.GetType() == wxDF_TEXT )
e40298d5 125 ((char*)data)[byteCount] = 0 ;
e135f093 126 if ( dataFormat.GetType() == wxDF_UNICODETEXT )
427ff662 127 ((wxChar*)data)[byteCount/2] = 0 ;
e40298d5 128 *len = byteCount ;
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129 }
130 DisposeHandle( datahandle ) ;
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131#endif
132 if ( err )
133 {
134 wxLogSysError(_("Failed to get clipboard data."));
e135f093 135
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136 return NULL ;
137 }
427ff662 138
939fba6c 139 if ( dataFormat.GetType() == wxDF_TEXT )
97af5088 140 {
8aa701ed 141 wxMacConvertNewlines10To13( (char*) data ) ;
97af5088 142 }
427ff662 143
97af5088 144 return data;
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145}
146
147
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148/*
149 * Generalized clipboard implementation by Matthew Flatt
150 */
151
528e2293 152IMPLEMENT_DYNAMIC_CLASS(wxClipboard, wxObject)
7c74e7fe 153
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154wxClipboard::wxClipboard()
155{
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156 m_open = false ;
157 m_data = NULL ;
e7549107 158}
e9576ca5 159
e7549107 160wxClipboard::~wxClipboard()
e9576ca5 161{
f0822896 162 if (m_data)
e7549107 163 {
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164 delete m_data;
165 m_data = (wxDataObject*) NULL;
e7549107 166 }
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167}
168
e7549107 169void wxClipboard::Clear()
e9576ca5 170{
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171 if (m_data)
172 {
173 delete m_data;
174 m_data = (wxDataObject*) NULL;
175 }
176#if TARGET_CARBON
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177 OSStatus err ;
178 err = ClearCurrentScrap( );
f0822896 179#else
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180 OSErr err ;
181 err = ZeroScrap( );
f0822896 182#endif
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183 if ( err )
184 {
f0822896 185 wxLogSysError(_("Failed to empty the clipboard."));
ed60b502 186 }
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187}
188
e7549107 189bool wxClipboard::Flush()
e9576ca5 190{
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191 return FALSE;
192}
193
194bool wxClipboard::Open()
195{
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196 wxCHECK_MSG( !m_open, FALSE, wxT("clipboard already open") );
197 m_open = true ;
198 return true ;
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199}
200
201bool wxClipboard::IsOpened() const
202{
f0822896 203 return m_open;
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204}
205
f0822896 206bool wxClipboard::SetData( wxDataObject *data )
e9576ca5 207{
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208 // as we can only store one wxDataObject, this is the same in this
209 // implementation
f0822896 210 return AddData( data );
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211}
212
213bool wxClipboard::AddData( wxDataObject *data )
214{
f0822896 215 wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") );
e7549107 216
f0822896 217 wxCHECK_MSG( data, FALSE, wxT("data is invalid") );
e7549107 218
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219 /* we can only store one wxDataObject */
220 Clear();
e7549107 221
f0822896 222 m_data = data;
e7549107 223
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224 /* get formats from wxDataObjects */
225 wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
226 m_data->GetAllFormats( array );
e7549107 227
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228 for (size_t i = 0; i < m_data->GetFormatCount(); i++)
229 {
230 wxLogTrace( TRACE_CLIPBOARD,
231 wxT("wxClipboard now supports atom %s"),
232 array[i].GetId().c_str() );
e7549107 233
f0822896 234#if !TARGET_CARBON
0cd51b2d 235 OSErr err = noErr ;
f0822896 236#else
0cd51b2d 237 OSStatus err = noErr ;
f0822896 238#endif
e7549107 239
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240 switch ( array[i].GetType() )
241 {
242 case wxDF_TEXT:
243 case wxDF_OEMTEXT:
244 {
245 wxTextDataObject* textDataObject = (wxTextDataObject*) data;
939fba6c 246 wxCharBuffer buf = textDataObject->GetText().mb_str() ;
427ff662 247 err = UMAPutScrap( strlen(buf) , kScrapFlavorTypeText , (void*) buf.data() ) ;
f0822896 248 }
d1171566 249 break ;
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250#if wxUSE_UNICODE
251 case wxDF_UNICODETEXT :
252 {
253 wxTextDataObject* textDataObject = (wxTextDataObject*) data;
254 wxString str(textDataObject->GetText());
255 err = UMAPutScrap( str.Length() * sizeof(wxChar) , kScrapFlavorTypeUnicode , (void*) str.wc_str() ) ;
256 }
257 break ;
258#endif
f0822896 259#if wxUSE_DRAG_AND_DROP
e7549107 260 case wxDF_METAFILE:
f0822896 261 {
e40298d5 262 wxMetafileDataObject* metaFileDataObject =
f0822896 263 (wxMetafileDataObject*) data;
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264 wxMetafile metaFile = metaFileDataObject->GetMetafile();
265 PicHandle pict = (PicHandle) metaFile.GetHMETAFILE() ;
266 HLock( (Handle) pict ) ;
427ff662 267 err = UMAPutScrap( GetHandleSize( (Handle) pict ) , kScrapFlavorTypePicture , *pict ) ;
e40298d5 268 HUnlock( (Handle) pict ) ;
f0822896 269 }
d1171566 270 break ;
e7549107 271#endif
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272 case wxDF_BITMAP:
273 case wxDF_DIB:
9c3c5849 274 {
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275 bool created = false ;
276 PicHandle pict = NULL ;
e135f093 277
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278 wxBitmapDataObject* bitmapDataObject = (wxBitmapDataObject*) data ;
279 pict = (PicHandle) bitmapDataObject->GetBitmap().GetPict( &created ) ;
280
281 HLock( (Handle) pict ) ;
427ff662 282 err = UMAPutScrap( GetHandleSize( (Handle) pict ) , kScrapFlavorTypePicture , *pict ) ;
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283 HUnlock( (Handle) pict ) ;
284 if ( created )
285 KillPicture( pict ) ;
9c3c5849 286 }
f0822896 287 default:
ed60b502 288 break ;
f0822896 289 }
e9576ca5 290
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291 }
292
f0822896 293 delete[] array;
e9576ca5 294
f0822896 295 return true ;
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296}
297
f0822896 298void wxClipboard::Close()
e9576ca5 299{
f0822896 300 m_open = false ;
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301
302 // Get rid of cached object. If this is not done copying from another application will
303 // only work once
304 if (m_data)
305 {
306 delete m_data;
307 m_data = (wxDataObject*) NULL;
308 }
309
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310}
311
f0822896 312bool wxClipboard::IsSupported( const wxDataFormat &dataFormat )
e7549107 313{
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314 if ( m_data )
315 {
316 return m_data->IsSupported( dataFormat ) ;
e9576ca5 317 }
f0822896 318#if TARGET_CARBON
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319 OSStatus err = noErr;
320 ScrapRef scrapRef;
e135f093 321
ed60b502 322 err = GetCurrentScrap( &scrapRef );
e135f093 323 if ( err != noTypeErr && err != memFullErr )
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324 {
325 ScrapFlavorFlags flavorFlags;
326 Size byteCount;
e135f093 327
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328 if (( err = GetScrapFlavorFlags( scrapRef, dataFormat.GetFormatId(), &flavorFlags )) == noErr)
329 {
330 if (( err = GetScrapFlavorSize( scrapRef, dataFormat.GetFormatId(), &byteCount )) == noErr)
331 {
332 return TRUE ;
333 }
334 }
335 }
336 return FALSE;
e135f093 337
f0822896 338#else
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339 long offset ;
340 Handle datahandle = NewHandle(0) ;
341 HLock( datahandle ) ;
342 GetScrap( datahandle , dataFormat.GetFormatId() , &offset ) ;
343 HUnlock( datahandle ) ;
344 bool hasData = GetHandleSize( datahandle ) > 0 ;
345 DisposeHandle( datahandle ) ;
346 return hasData ;
f0822896 347#endif
e9576ca5 348}
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349
350bool wxClipboard::GetData( wxDataObject& data )
e9576ca5 351{
f0822896 352 wxCHECK_MSG( m_open, FALSE, wxT("clipboard not open") );
e9576ca5 353
3340066a 354 size_t formatcount = data.GetFormatCount() + 1 ;
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355 wxDataFormat *array = new wxDataFormat[ formatcount ];
356 array[0] = data.GetPreferredFormat();
357 data.GetAllFormats( &array[1] );
e9576ca5 358
f0822896 359 bool transferred = false ;
e9576ca5 360
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361 if ( m_data )
362 {
363 for (size_t i = 0; !transferred && i < formatcount ; i++)
364 {
365 wxDataFormat format = array[i] ;
e135f093 366 if ( m_data->IsSupported( format ) )
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367 {
368 int size = m_data->GetDataSize( format );
369 transferred = true ;
e7549107 370
e135f093 371 if (size == 0)
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372 {
373 data.SetData(format , 0 , 0 ) ;
374 }
375 else
376 {
377 char *d = new char[size];
378 m_data->GetDataHere( format , (void*) d );
379 data.SetData( format , size , d ) ;
380 delete[] d ;
381 }
382 }
383 }
384 }
385 /* get formats from wxDataObjects */
e135f093 386 if ( !transferred )
f0822896 387 {
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388 for (size_t i = 0; !transferred && i < formatcount ; i++)
389 {
390 wxDataFormat format = array[i] ;
391
392 switch ( format.GetType() )
393 {
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394 case wxDF_TEXT :
395 case wxDF_OEMTEXT :
396 case wxDF_BITMAP :
397 case wxDF_METAFILE :
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398 {
399 long len ;
400 char* s = (char*)wxGetClipboardData(format, &len );
401 if ( s )
402 {
403 data.SetData( format , len , s ) ;
404 delete [] s;
405
406 transferred = true ;
407 }
408 }
e40298d5 409 break ;
d1171566 410
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411 default :
412 break ;
413 }
414 }
415 }
e9576ca5 416
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417 delete[] array ;
418 return transferred ;
419}