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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/mac/carbon/metafile.cpp | |
3 | // Purpose: wxMetaFile, wxMetaFileDC etc. These classes are optional. | |
4 | // Author: Stefan Csomor | |
5 | // Modified by: | |
6 | // Created: 04/01/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Stefan Csomor | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | // | |
12 | // Currently, the only purpose for making a metafile | |
13 | // is to put it on the clipboard. | |
14 | ||
15 | ||
16 | #include "wx/wxprec.h" | |
17 | ||
18 | #if wxUSE_METAFILE | |
19 | ||
20 | #ifndef WX_PRECOMP | |
21 | #include "wx/utils.h" | |
22 | #include "wx/app.h" | |
23 | #endif | |
24 | ||
25 | #include "wx/metafile.h" | |
26 | #include "wx/clipbrd.h" | |
27 | #include "wx/mac/uma.h" | |
28 | #include "wx/graphics.h" | |
29 | ||
30 | #include <stdio.h> | |
31 | #include <string.h> | |
32 | ||
33 | IMPLEMENT_DYNAMIC_CLASS(wxMetafile, wxObject) | |
34 | IMPLEMENT_ABSTRACT_CLASS(wxMetafileDC, wxDC) | |
35 | ||
36 | #define M_METAFILEREFDATA( a ) ((wxMetafileRefData*)(a).GetRefData()) | |
37 | ||
38 | class wxMetafileRefData: public wxGDIRefData | |
39 | { | |
40 | public: | |
41 | #if wxMAC_USE_CORE_GRAPHICS | |
42 | // creates a metafile from memory, assumes ownership | |
43 | wxMetafileRefData(CFDataRef data); | |
44 | #else | |
45 | // creates a metafile from memory, assumes ownership | |
46 | wxMetafileRefData(PicHandle data); | |
47 | #endif | |
48 | // prepares a recording metafile | |
49 | wxMetafileRefData( int width, int height); | |
50 | // prepares a metafile to be read from a file (if filename is not empty) | |
51 | wxMetafileRefData( const wxString& filename); | |
52 | virtual ~wxMetafileRefData(); | |
53 | ||
54 | void Init(); | |
55 | ||
56 | int GetWidth() const { return m_width; } | |
57 | int GetHeight() const { return m_height; } | |
58 | ||
59 | #if wxMAC_USE_CORE_GRAPHICS | |
60 | CGPDFDocumentRef GetPDFDocument() const { return m_pdfDoc; } | |
61 | void UpdateDocumentFromData() ; | |
62 | ||
63 | const wxCFDataRef& GetData() const { return m_data; } | |
64 | CGContextRef GetContext() const { return m_context; } | |
65 | #else | |
66 | PicHandle GetHandle() const { return m_metafile; } | |
67 | #endif | |
68 | // ends the recording | |
69 | void Close(); | |
70 | private: | |
71 | #if wxMAC_USE_CORE_GRAPHICS | |
72 | wxCFDataRef m_data; | |
73 | wxCFRef<CGPDFDocumentRef> m_pdfDoc; | |
74 | CGContextRef m_context; | |
75 | #else | |
76 | PicHandle m_metafile; | |
77 | #endif | |
78 | int m_width ; | |
79 | int m_height ; | |
80 | }; | |
81 | ||
82 | #if !wxMAC_USE_CORE_GRAPHICS | |
83 | wxMetafileRefData::wxMetafileRefData(PicHandle pict) | |
84 | { | |
85 | Init(); | |
86 | m_metafile = pict; | |
87 | ||
88 | Rect r; | |
89 | wxMacGetPictureBounds( m_metafile, &r ); | |
90 | m_width = r.right - r.left; | |
91 | m_height = r.bottom - r.top; | |
92 | } | |
93 | #else | |
94 | wxMetafileRefData::wxMetafileRefData(CFDataRef data) : | |
95 | m_data(data) | |
96 | { | |
97 | Init(); | |
98 | UpdateDocumentFromData(); | |
99 | } | |
100 | #endif | |
101 | ||
102 | wxMetafileRefData::wxMetafileRefData( const wxString& filename ) | |
103 | { | |
104 | Init(); | |
105 | #if wxMAC_USE_CORE_GRAPHICS | |
106 | if ( !filename.empty() ) | |
107 | { | |
108 | wxCFRef<CFMutableStringRef> cfMutableString(CFStringCreateMutableCopy(NULL, 0, wxMacCFStringHolder(filename))); | |
109 | CFStringNormalize(cfMutableString,kCFStringNormalizationFormD); | |
110 | wxCFRef<CFURLRef> url(CFURLCreateWithFileSystemPath(kCFAllocatorDefault, cfMutableString , kCFURLPOSIXPathStyle, false)); | |
111 | m_pdfDoc.reset(CGPDFDocumentCreateWithURL(url)); | |
112 | } | |
113 | #else | |
114 | wxASSERT_MSG( filename.empty(), wxT("no file-based metafile support yet") ); | |
115 | m_metafile = NULL; | |
116 | #endif | |
117 | } | |
118 | ||
119 | ||
120 | wxMetafileRefData::wxMetafileRefData( int width, int height) | |
121 | { | |
122 | Init(); | |
123 | ||
124 | m_width = width; | |
125 | m_height = height; | |
126 | #if wxMAC_USE_CORE_GRAPHICS | |
127 | CGRect r = CGRectMake( 0 , 0 , width , height ); | |
128 | ||
129 | CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0); | |
130 | m_data.reset(data); | |
131 | CGDataConsumerRef dataConsumer = UMACGDataConsumerCreateWithCFData(data); | |
132 | m_context = CGPDFContextCreate( dataConsumer, (width != 0 && height != 0) ? &r : NULL , NULL ); | |
133 | CGDataConsumerRelease( dataConsumer ); | |
134 | if ( m_context ) | |
135 | { | |
136 | #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4 | |
137 | if ( &CGPDFContextBeginPage != NULL ) | |
138 | CGPDFContextBeginPage(m_context, NULL); | |
139 | else | |
140 | #endif | |
141 | CGContextBeginPage(m_context, &r); | |
142 | ||
143 | CGColorSpaceRef genericColorSpace = wxMacGetGenericRGBColorSpace(); | |
144 | ||
145 | CGContextSetFillColorSpace( m_context, genericColorSpace ); | |
146 | CGContextSetStrokeColorSpace( m_context, genericColorSpace ); | |
147 | ||
148 | CGContextTranslateCTM( m_context , 0 , height ) ; | |
149 | CGContextScaleCTM( m_context , 1 , -1 ) ; | |
150 | } | |
151 | #else | |
152 | Rect r = { 0, 0, height, width }; | |
153 | m_metafile = OpenPicture( &r ) ; | |
154 | #endif | |
155 | } | |
156 | ||
157 | wxMetafileRefData::~wxMetafileRefData() | |
158 | { | |
159 | #if! wxMAC_USE_CORE_GRAPHICS | |
160 | if (m_metafile) | |
161 | { | |
162 | KillPicture( (PicHandle)m_metafile ); | |
163 | m_metafile = NULL; | |
164 | } | |
165 | #endif | |
166 | } | |
167 | ||
168 | void wxMetafileRefData::Init() | |
169 | { | |
170 | #if wxMAC_USE_CORE_GRAPHICS | |
171 | m_context = NULL; | |
172 | #else | |
173 | m_metafile = NULL; | |
174 | #endif | |
175 | m_width = -1; | |
176 | m_height = -1; | |
177 | } | |
178 | ||
179 | void wxMetafileRefData::Close() | |
180 | { | |
181 | #if wxMAC_USE_CORE_GRAPHICS | |
182 | #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4 | |
183 | if ( &CGPDFContextEndPage != NULL ) | |
184 | CGPDFContextEndPage(m_context); | |
185 | else | |
186 | #endif | |
187 | CGContextEndPage(m_context); | |
188 | ||
189 | CGContextRelease(m_context); | |
190 | m_context = NULL; | |
191 | ||
192 | UpdateDocumentFromData(); | |
193 | #else | |
194 | ClosePicture(); | |
195 | #endif | |
196 | } | |
197 | ||
198 | #if wxMAC_USE_CORE_GRAPHICS | |
199 | void wxMetafileRefData::UpdateDocumentFromData() | |
200 | { | |
201 | wxCFRef<CGDataProviderRef> provider(UMACGDataProviderCreateWithCFData(m_data)); | |
202 | m_pdfDoc.reset(CGPDFDocumentCreateWithProvider(provider)); | |
203 | if ( m_pdfDoc != NULL ) | |
204 | { | |
205 | CGPDFPageRef page = CGPDFDocumentGetPage( m_pdfDoc, 1 ); | |
206 | CGRect rect = CGPDFPageGetBoxRect ( page, kCGPDFMediaBox); | |
207 | m_width = rect.size.width; | |
208 | m_height = rect.size.height; | |
209 | } | |
210 | } | |
211 | #endif | |
212 | ||
213 | wxMetaFile::wxMetaFile(const wxString& file) | |
214 | { | |
215 | m_refData = new wxMetafileRefData(file); | |
216 | } | |
217 | ||
218 | wxMetaFile::~wxMetaFile() | |
219 | { | |
220 | } | |
221 | ||
222 | bool wxMetaFile::IsOk() const | |
223 | { | |
224 | #if wxMAC_USE_CORE_GRAPHICS | |
225 | return (M_METAFILEDATA && (M_METAFILEDATA->GetData() != NULL)); | |
226 | #else | |
227 | return (M_METAFILEDATA && (M_METAFILEDATA->GetHandle() != NULL)); | |
228 | #endif | |
229 | } | |
230 | ||
231 | WXHMETAFILE wxMetaFile::GetHMETAFILE() const | |
232 | { | |
233 | #if wxMAC_USE_CORE_GRAPHICS | |
234 | return (WXHMETAFILE) (CFDataRef) M_METAFILEDATA->GetData(); | |
235 | #else | |
236 | return (WXHMETAFILE) M_METAFILEDATA->GetHandle(); | |
237 | #endif | |
238 | } | |
239 | ||
240 | bool wxMetaFile::SetClipboard(int WXUNUSED(width), int WXUNUSED(height)) | |
241 | { | |
242 | bool success = true; | |
243 | ||
244 | #if wxUSE_DRAG_AND_DROP | |
245 | if (m_refData == NULL) | |
246 | return false; | |
247 | ||
248 | bool alreadyOpen = wxTheClipboard->IsOpened(); | |
249 | if (!alreadyOpen) | |
250 | { | |
251 | wxTheClipboard->Open(); | |
252 | wxTheClipboard->Clear(); | |
253 | } | |
254 | ||
255 | wxDataObject *data = new wxMetafileDataObject( *this ); | |
256 | success = wxTheClipboard->SetData( data ); | |
257 | if (!alreadyOpen) | |
258 | wxTheClipboard->Close(); | |
259 | #endif | |
260 | ||
261 | return success; | |
262 | } | |
263 | ||
264 | void wxMetafile::SetHMETAFILE(WXHMETAFILE mf) | |
265 | { | |
266 | UnRef(); | |
267 | ||
268 | #if wxMAC_USE_CORE_GRAPHICS | |
269 | m_refData = new wxMetafileRefData((CFDataRef)mf); | |
270 | #else | |
271 | m_refData = new wxMetafileRefData((PicHandle)mf); | |
272 | #endif | |
273 | } | |
274 | ||
275 | void wxMetafile::SetPICT(void* pictHandle) | |
276 | { | |
277 | UnRef(); | |
278 | ||
279 | #if wxMAC_USE_CORE_GRAPHICS | |
280 | Handle picHandle = (Handle) pictHandle; | |
281 | HLock(picHandle); | |
282 | CFDataRef data = CFDataCreateWithBytesNoCopy( kCFAllocatorDefault, (const UInt8*) *picHandle, GetHandleSize(picHandle), kCFAllocatorNull); | |
283 | wxCFRef<CGDataProviderRef> provider(UMACGDataProviderCreateWithCFData(data)); | |
284 | QDPictRef pictRef = QDPictCreateWithProvider(provider); | |
285 | CGRect rect = QDPictGetBounds(pictRef); | |
286 | m_refData = new wxMetafileRefData( rect.size.width, rect.size.height ); | |
287 | QDPictDrawToCGContext( ((wxMetafileRefData*) m_refData)->GetContext(), rect, pictRef ); | |
288 | CFRelease( data ); | |
289 | QDPictRelease( pictRef ); | |
290 | ((wxMetafileRefData*) m_refData)->Close(); | |
291 | #else | |
292 | m_refData = new wxMetafileRefData((PicHandle)pictHandle); | |
293 | #endif | |
294 | } | |
295 | ||
296 | bool wxMetaFile::Play(wxDC *dc) | |
297 | { | |
298 | if (!m_refData) | |
299 | return false; | |
300 | ||
301 | if (!dc->Ok()) | |
302 | return false; | |
303 | ||
304 | { | |
305 | #if wxMAC_USE_CORE_GRAPHICS | |
306 | CGContextRef cg = (CGContextRef) dc->GetGraphicsContext()->GetNativeContext(); | |
307 | CGPDFDocumentRef doc = M_METAFILEDATA->GetPDFDocument(); | |
308 | CGPDFPageRef page = CGPDFDocumentGetPage( doc, 1 ); | |
309 | wxMacCGContextStateSaver save(cg); | |
310 | CGContextDrawPDFPage( cg, page ); | |
311 | // CGContextTranslateCTM( cg, 0, bounds.size.width ); | |
312 | // CGContextScaleCTM( cg, 1, -1 ); | |
313 | #else | |
314 | PicHandle pict = (PicHandle)GetHMETAFILE(); | |
315 | wxMacPortSetter helper( dc ); | |
316 | Rect picFrame; | |
317 | DrawPicture( pict, wxMacGetPictureBounds( pict, &picFrame ) ); | |
318 | #endif | |
319 | } | |
320 | ||
321 | return true; | |
322 | } | |
323 | ||
324 | wxSize wxMetaFile::GetSize() const | |
325 | { | |
326 | wxSize dataSize = wxDefaultSize; | |
327 | ||
328 | if (Ok()) | |
329 | { | |
330 | dataSize.x = M_METAFILEDATA->GetWidth(); | |
331 | dataSize.y = M_METAFILEDATA->GetHeight(); | |
332 | } | |
333 | ||
334 | return dataSize; | |
335 | } | |
336 | ||
337 | // Metafile device context | |
338 | ||
339 | // New constructor that takes origin and extent. If you use this, don't | |
340 | // give origin/extent arguments to wxMakeMetaFilePlaceable. | |
341 | ||
342 | wxMetaFileDC::wxMetaFileDC( | |
343 | const wxString& filename, | |
344 | int width, int height, | |
345 | const wxString& WXUNUSED(description) ) | |
346 | { | |
347 | wxASSERT_MSG( width != 0 || height != 0, wxT("no arbitration of metafile size supported") ); | |
348 | wxASSERT_MSG( filename.empty(), wxT("no file based metafile support yet")); | |
349 | ||
350 | m_metaFile = new wxMetaFile( filename ); | |
351 | wxMetafileRefData* metafiledata = new wxMetafileRefData(width, height); | |
352 | m_metaFile->UnRef(); | |
353 | m_metaFile->SetRefData( metafiledata ); | |
354 | #if wxMAC_USE_CORE_GRAPHICS | |
355 | SetGraphicsContext( wxGraphicsContext::CreateFromNative(metafiledata->GetContext())); | |
356 | m_ok = (m_graphicContext != NULL) ; | |
357 | #else | |
358 | Rect r = { 0, 0, height, width }; | |
359 | RectRgn( (RgnHandle)m_macBoundaryClipRgn, &r ); | |
360 | CopyRgn( (RgnHandle)m_macBoundaryClipRgn, (RgnHandle)m_macCurrentClipRgn ); | |
361 | ::GetPort( (GrafPtr*)&m_macPort ); | |
362 | m_ok = true; | |
363 | #endif | |
364 | ||
365 | SetMapMode( wxMM_TEXT ); | |
366 | } | |
367 | ||
368 | wxMetaFileDC::~wxMetaFileDC() | |
369 | { | |
370 | } | |
371 | ||
372 | void wxMetaFileDC::DoGetSize(int *width, int *height) const | |
373 | { | |
374 | wxCHECK_RET( m_metaFile, wxT("GetSize() doesn't work without a metafile") ); | |
375 | ||
376 | wxSize sz = m_metaFile->GetSize(); | |
377 | if (width) | |
378 | (*width) = sz.x; | |
379 | if (height) | |
380 | (*height) = sz.y; | |
381 | } | |
382 | ||
383 | wxMetaFile *wxMetaFileDC::Close() | |
384 | { | |
385 | #if wxMAC_USE_CORE_GRAPHICS | |
386 | delete m_graphicContext; | |
387 | m_graphicContext = NULL; | |
388 | m_ok = false; | |
389 | #endif | |
390 | ||
391 | M_METAFILEREFDATA(*m_metaFile)->Close(); | |
392 | ||
393 | return m_metaFile; | |
394 | } | |
395 | ||
396 | #if wxUSE_DATAOBJ | |
397 | size_t wxMetafileDataObject::GetDataSize() const | |
398 | { | |
399 | #if wxMAC_USE_CORE_GRAPHICS | |
400 | CFIndex length = 0; | |
401 | wxMetafileRefData* refData = M_METAFILEREFDATA(m_metafile); | |
402 | if ( refData ) | |
403 | length = refData->GetData().GetLength(); | |
404 | return length; | |
405 | #else | |
406 | return GetHandleSize( (Handle) (*((wxMetafile*)&m_metafile)).GetHMETAFILE() ); | |
407 | #endif | |
408 | } | |
409 | ||
410 | bool wxMetafileDataObject::GetDataHere(void *buf) const | |
411 | { | |
412 | bool result = false; | |
413 | #if wxMAC_USE_CORE_GRAPHICS | |
414 | wxMetafileRefData* refData = M_METAFILEREFDATA(m_metafile); | |
415 | if ( refData ) | |
416 | { | |
417 | CFIndex length = refData->GetData().GetLength(); | |
418 | if ( length > 0 ) | |
419 | { | |
420 | result = true ; | |
421 | refData->GetData().GetBytes(CFRangeMake(0,length), (UInt8 *) buf); | |
422 | } | |
423 | } | |
424 | #else | |
425 | Handle pictH = (Handle)(*((wxMetafile*)&m_metafile)).GetHMETAFILE(); | |
426 | result = (pictH != NULL); | |
427 | ||
428 | if (result) | |
429 | memcpy( buf, *pictH, GetHandleSize( pictH ) ); | |
430 | ||
431 | #endif | |
432 | return result; | |
433 | } | |
434 | ||
435 | bool wxMetafileDataObject::SetData(size_t len, const void *buf) | |
436 | { | |
437 | #if wxMAC_USE_CORE_GRAPHICS | |
438 | wxMetafileRefData* metafiledata = new wxMetafileRefData(wxCFRefFromGet(wxCFDataRef((UInt8*)buf, len).get())); | |
439 | m_metafile.UnRef(); | |
440 | m_metafile.SetRefData( metafiledata ); | |
441 | #else | |
442 | Handle handle = NewHandle( len ); | |
443 | SetHandleSize( handle, len ); | |
444 | memcpy( *handle, buf, len ); | |
445 | m_metafile.SetHMETAFILE( (WXHMETAFILE) handle ); | |
446 | #endif | |
447 | return true; | |
448 | } | |
449 | #endif | |
450 | ||
451 | #endif |