| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/osx/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/osx/private.h" |
| 28 | #include "wx/graphics.h" |
| 29 | #include "wx/osx/metafile.h" |
| 30 | |
| 31 | #include <stdio.h> |
| 32 | #include <string.h> |
| 33 | |
| 34 | IMPLEMENT_DYNAMIC_CLASS(wxMetafile, wxObject) |
| 35 | IMPLEMENT_ABSTRACT_CLASS(wxMetafileDC, wxDC) |
| 36 | IMPLEMENT_ABSTRACT_CLASS(wxMetafileDCImpl, wxGCDCImpl) |
| 37 | |
| 38 | #define M_METAFILEREFDATA( a ) ((wxMetafileRefData*)(a).GetRefData()) |
| 39 | |
| 40 | class wxMetafileRefData : public wxGDIRefData |
| 41 | { |
| 42 | public: |
| 43 | // default ctor needed for CreateGDIRefData(), must be initialized later |
| 44 | wxMetafileRefData() { Init(); } |
| 45 | |
| 46 | // creates a metafile from memory, assumes ownership |
| 47 | wxMetafileRefData(CFDataRef data); |
| 48 | |
| 49 | // prepares a recording metafile |
| 50 | wxMetafileRefData( int width, int height); |
| 51 | |
| 52 | // prepares a metafile to be read from a file (if filename is not empty) |
| 53 | wxMetafileRefData( const wxString& filename); |
| 54 | |
| 55 | virtual ~wxMetafileRefData(); |
| 56 | |
| 57 | virtual bool IsOk() const { return m_data != NULL; } |
| 58 | |
| 59 | void Init(); |
| 60 | |
| 61 | int GetWidth() const { return m_width; } |
| 62 | int GetHeight() const { return m_height; } |
| 63 | |
| 64 | CGPDFDocumentRef GetPDFDocument() const { return m_pdfDoc; } |
| 65 | void UpdateDocumentFromData() ; |
| 66 | |
| 67 | const wxCFDataRef& GetData() const { return m_data; } |
| 68 | CGContextRef GetContext() const { return m_context; } |
| 69 | |
| 70 | // ends the recording |
| 71 | void Close(); |
| 72 | private: |
| 73 | wxCFDataRef m_data; |
| 74 | wxCFRef<CGPDFDocumentRef> m_pdfDoc; |
| 75 | CGContextRef m_context; |
| 76 | |
| 77 | int m_width ; |
| 78 | int m_height ; |
| 79 | |
| 80 | |
| 81 | // Our m_pdfDoc field can't be easily (deep) copied and so we don't define a |
| 82 | // copy ctor. |
| 83 | wxDECLARE_NO_COPY_CLASS(wxMetafileRefData); |
| 84 | }; |
| 85 | |
| 86 | wxMetafileRefData::wxMetafileRefData(CFDataRef data) : |
| 87 | m_data(data) |
| 88 | { |
| 89 | Init(); |
| 90 | UpdateDocumentFromData(); |
| 91 | } |
| 92 | |
| 93 | wxMetafileRefData::wxMetafileRefData( const wxString& filename ) |
| 94 | { |
| 95 | Init(); |
| 96 | |
| 97 | if ( !filename.empty() ) |
| 98 | { |
| 99 | wxCFRef<CFMutableStringRef> cfMutableString(CFStringCreateMutableCopy(NULL, 0, wxCFStringRef(filename))); |
| 100 | CFStringNormalize(cfMutableString,kCFStringNormalizationFormD); |
| 101 | wxCFRef<CFURLRef> url(CFURLCreateWithFileSystemPath(kCFAllocatorDefault, cfMutableString , kCFURLPOSIXPathStyle, false)); |
| 102 | m_pdfDoc.reset(CGPDFDocumentCreateWithURL(url)); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | |
| 107 | wxMetafileRefData::wxMetafileRefData( int width, int height) |
| 108 | { |
| 109 | Init(); |
| 110 | |
| 111 | m_width = width; |
| 112 | m_height = height; |
| 113 | |
| 114 | CGRect r = CGRectMake( 0 , 0 , width , height ); |
| 115 | |
| 116 | CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0); |
| 117 | m_data.reset(data); |
| 118 | CGDataConsumerRef dataConsumer = wxMacCGDataConsumerCreateWithCFData(data); |
| 119 | m_context = CGPDFContextCreate( dataConsumer, (width != 0 && height != 0) ? &r : NULL , NULL ); |
| 120 | CGDataConsumerRelease( dataConsumer ); |
| 121 | if ( m_context ) |
| 122 | { |
| 123 | CGPDFContextBeginPage(m_context, NULL); |
| 124 | |
| 125 | CGColorSpaceRef genericColorSpace = wxMacGetGenericRGBColorSpace(); |
| 126 | |
| 127 | CGContextSetFillColorSpace( m_context, genericColorSpace ); |
| 128 | CGContextSetStrokeColorSpace( m_context, genericColorSpace ); |
| 129 | |
| 130 | CGContextTranslateCTM( m_context , 0 , height ) ; |
| 131 | CGContextScaleCTM( m_context , 1 , -1 ) ; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | wxMetafileRefData::~wxMetafileRefData() |
| 136 | { |
| 137 | } |
| 138 | |
| 139 | void wxMetafileRefData::Init() |
| 140 | { |
| 141 | m_context = NULL; |
| 142 | m_width = -1; |
| 143 | m_height = -1; |
| 144 | } |
| 145 | |
| 146 | void wxMetafileRefData::Close() |
| 147 | { |
| 148 | CGPDFContextEndPage(m_context); |
| 149 | |
| 150 | CGContextRelease(m_context); |
| 151 | m_context = NULL; |
| 152 | |
| 153 | UpdateDocumentFromData(); |
| 154 | } |
| 155 | |
| 156 | void wxMetafileRefData::UpdateDocumentFromData() |
| 157 | { |
| 158 | wxCFRef<CGDataProviderRef> provider(wxMacCGDataProviderCreateWithCFData(m_data)); |
| 159 | m_pdfDoc.reset(CGPDFDocumentCreateWithProvider(provider)); |
| 160 | if ( m_pdfDoc != NULL ) |
| 161 | { |
| 162 | CGPDFPageRef page = CGPDFDocumentGetPage( m_pdfDoc, 1 ); |
| 163 | CGRect rect = CGPDFPageGetBoxRect ( page, kCGPDFMediaBox); |
| 164 | m_width = static_cast<int>(rect.size.width); |
| 165 | m_height = static_cast<int>(rect.size.height); |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | wxMetaFile::wxMetaFile(const wxString& file) |
| 170 | { |
| 171 | m_refData = new wxMetafileRefData(file); |
| 172 | } |
| 173 | |
| 174 | wxMetaFile::~wxMetaFile() |
| 175 | { |
| 176 | } |
| 177 | |
| 178 | wxGDIRefData *wxMetaFile::CreateGDIRefData() const |
| 179 | { |
| 180 | return new wxMetafileRefData; |
| 181 | } |
| 182 | |
| 183 | wxGDIRefData * |
| 184 | wxMetaFile::CloneGDIRefData(const wxGDIRefData * WXUNUSED(data)) const |
| 185 | { |
| 186 | wxFAIL_MSG( wxS("Cloning metafiles is not implemented in wxCarbon.") ); |
| 187 | |
| 188 | return new wxMetafileRefData; |
| 189 | } |
| 190 | |
| 191 | WXHMETAFILE wxMetaFile::GetHMETAFILE() const |
| 192 | { |
| 193 | return (WXHMETAFILE) (CFDataRef) M_METAFILEDATA->GetData(); |
| 194 | } |
| 195 | |
| 196 | bool wxMetaFile::SetClipboard(int WXUNUSED(width), int WXUNUSED(height)) |
| 197 | { |
| 198 | bool success = true; |
| 199 | |
| 200 | #if wxUSE_DRAG_AND_DROP |
| 201 | if (m_refData == NULL) |
| 202 | return false; |
| 203 | |
| 204 | bool alreadyOpen = wxTheClipboard->IsOpened(); |
| 205 | if (!alreadyOpen) |
| 206 | { |
| 207 | wxTheClipboard->Open(); |
| 208 | wxTheClipboard->Clear(); |
| 209 | } |
| 210 | |
| 211 | wxDataObject *data = new wxMetafileDataObject( *this ); |
| 212 | success = wxTheClipboard->SetData( data ); |
| 213 | if (!alreadyOpen) |
| 214 | wxTheClipboard->Close(); |
| 215 | #endif |
| 216 | |
| 217 | return success; |
| 218 | } |
| 219 | |
| 220 | void wxMetafile::SetHMETAFILE(WXHMETAFILE mf) |
| 221 | { |
| 222 | UnRef(); |
| 223 | |
| 224 | m_refData = new wxMetafileRefData((CFDataRef)mf); |
| 225 | } |
| 226 | |
| 227 | #if wxOSX_USE_COCOA_OR_CARBON && !defined( __LP64__ ) |
| 228 | void wxMetafile::SetPICT(void* pictHandle) |
| 229 | { |
| 230 | UnRef(); |
| 231 | |
| 232 | Handle picHandle = (Handle) pictHandle; |
| 233 | HLock(picHandle); |
| 234 | CFDataRef data = CFDataCreateWithBytesNoCopy( kCFAllocatorDefault, (const UInt8*) *picHandle, GetHandleSize(picHandle), kCFAllocatorNull); |
| 235 | wxCFRef<CGDataProviderRef> provider(wxMacCGDataProviderCreateWithCFData(data)); |
| 236 | QDPictRef pictRef = QDPictCreateWithProvider(provider); |
| 237 | CGRect rect = QDPictGetBounds(pictRef); |
| 238 | m_refData = new wxMetafileRefData(static_cast<int>(rect.size.width), |
| 239 | static_cast<int>(rect.size.height)); |
| 240 | QDPictDrawToCGContext( ((wxMetafileRefData*) m_refData)->GetContext(), rect, pictRef ); |
| 241 | CFRelease( data ); |
| 242 | QDPictRelease( pictRef ); |
| 243 | ((wxMetafileRefData*) m_refData)->Close(); |
| 244 | } |
| 245 | #endif |
| 246 | |
| 247 | bool wxMetaFile::Play(wxDC *dc) |
| 248 | { |
| 249 | if (!m_refData) |
| 250 | return false; |
| 251 | |
| 252 | if (!dc->IsOk()) |
| 253 | return false; |
| 254 | |
| 255 | { |
| 256 | wxDCImpl *impl = dc->GetImpl(); |
| 257 | wxGCDCImpl *gc_impl = wxDynamicCast(impl, wxGCDCImpl); |
| 258 | if (gc_impl) |
| 259 | { |
| 260 | CGContextRef cg = (CGContextRef) (gc_impl->GetGraphicsContext()->GetNativeContext()); |
| 261 | CGPDFDocumentRef doc = M_METAFILEDATA->GetPDFDocument(); |
| 262 | CGPDFPageRef page = CGPDFDocumentGetPage( doc, 1 ); |
| 263 | wxMacCGContextStateSaver save(cg); |
| 264 | CGContextDrawPDFPage( cg, page ); |
| 265 | } |
| 266 | // CGContextTranslateCTM( cg, 0, bounds.size.width ); |
| 267 | // CGContextScaleCTM( cg, 1, -1 ); |
| 268 | } |
| 269 | |
| 270 | return true; |
| 271 | } |
| 272 | |
| 273 | wxSize wxMetaFile::GetSize() const |
| 274 | { |
| 275 | wxSize dataSize = wxDefaultSize; |
| 276 | |
| 277 | if (Ok()) |
| 278 | { |
| 279 | dataSize.x = M_METAFILEDATA->GetWidth(); |
| 280 | dataSize.y = M_METAFILEDATA->GetHeight(); |
| 281 | } |
| 282 | |
| 283 | return dataSize; |
| 284 | } |
| 285 | |
| 286 | // Metafile device context |
| 287 | |
| 288 | // New constructor that takes origin and extent. If you use this, don't |
| 289 | // give origin/extent arguments to wxMakeMetaFilePlaceable. |
| 290 | |
| 291 | wxMetafileDCImpl::wxMetafileDCImpl( |
| 292 | wxDC *owner, |
| 293 | const wxString& filename, |
| 294 | int width, int height, |
| 295 | const wxString& WXUNUSED(description) ) : |
| 296 | wxGCDCImpl( owner ) |
| 297 | { |
| 298 | wxASSERT_MSG( width != 0 || height != 0, wxT("no arbitration of metafile size supported") ); |
| 299 | wxASSERT_MSG( filename.empty(), wxT("no file based metafile support yet")); |
| 300 | |
| 301 | m_metaFile = new wxMetaFile( filename ); |
| 302 | wxMetafileRefData* metafiledata = new wxMetafileRefData(width, height); |
| 303 | m_metaFile->UnRef(); |
| 304 | m_metaFile->SetRefData( metafiledata ); |
| 305 | |
| 306 | SetGraphicsContext( wxGraphicsContext::CreateFromNative(metafiledata->GetContext())); |
| 307 | m_ok = (m_graphicContext != NULL) ; |
| 308 | |
| 309 | SetMapMode( wxMM_TEXT ); |
| 310 | } |
| 311 | |
| 312 | wxMetafileDCImpl::~wxMetafileDCImpl() |
| 313 | { |
| 314 | } |
| 315 | |
| 316 | void wxMetafileDCImpl::DoGetSize(int *width, int *height) const |
| 317 | { |
| 318 | wxCHECK_RET( m_metaFile, wxT("GetSize() doesn't work without a metafile") ); |
| 319 | |
| 320 | wxSize sz = m_metaFile->GetSize(); |
| 321 | if (width) |
| 322 | (*width) = sz.x; |
| 323 | if (height) |
| 324 | (*height) = sz.y; |
| 325 | } |
| 326 | |
| 327 | wxMetaFile *wxMetafileDCImpl::Close() |
| 328 | { |
| 329 | wxDELETE(m_graphicContext); |
| 330 | m_ok = false; |
| 331 | |
| 332 | M_METAFILEREFDATA(*m_metaFile)->Close(); |
| 333 | |
| 334 | return m_metaFile; |
| 335 | } |
| 336 | |
| 337 | #if wxUSE_DATAOBJ |
| 338 | size_t wxMetafileDataObject::GetDataSize() const |
| 339 | { |
| 340 | CFIndex length = 0; |
| 341 | wxMetafileRefData* refData = M_METAFILEREFDATA(m_metafile); |
| 342 | if ( refData ) |
| 343 | length = refData->GetData().GetLength(); |
| 344 | return length; |
| 345 | } |
| 346 | |
| 347 | bool wxMetafileDataObject::GetDataHere(void *buf) const |
| 348 | { |
| 349 | bool result = false; |
| 350 | |
| 351 | wxMetafileRefData* refData = M_METAFILEREFDATA(m_metafile); |
| 352 | if ( refData ) |
| 353 | { |
| 354 | CFIndex length = refData->GetData().GetLength(); |
| 355 | if ( length > 0 ) |
| 356 | { |
| 357 | result = true ; |
| 358 | refData->GetData().GetBytes(CFRangeMake(0,length), (UInt8 *) buf); |
| 359 | } |
| 360 | } |
| 361 | return result; |
| 362 | } |
| 363 | |
| 364 | bool wxMetafileDataObject::SetData(size_t len, const void *buf) |
| 365 | { |
| 366 | wxMetafileRefData* metafiledata = new wxMetafileRefData(wxCFRefFromGet(wxCFDataRef((UInt8*)buf, len).get())); |
| 367 | m_metafile.UnRef(); |
| 368 | m_metafile.SetRefData( metafiledata ); |
| 369 | return true; |
| 370 | } |
| 371 | #endif |
| 372 | |
| 373 | #endif |