1945421 applied

[wxWidgets.git] / src / mac / carbon / metafile.cpp

diff --git a/src/mac/carbon/metafile.cpp b/src/mac/carbon/metafile.cpp
index a92874b33669dc15650d93c4877886130f9f97ed..73d5b77f9ab8a651fa60b7328ac23bbd776dad68 100644 (file)
--- a/src/mac/carbon/metafile.cpp
+++ b/src/mac/carbon/metafile.cpp
@@ -1,239 +1,366 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        metafile.cpp
+// Name:        src/mac/carbon/metafile.cpp

 // Purpose:     wxMetaFile, wxMetaFileDC etc. These classes are optional.
 // Purpose:     wxMetaFile, wxMetaFileDC etc. These classes are optional.

-// Author:      AUTHOR
+// Author:      Stefan Csomor

 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$

-// Copyright:   (c) AUTHOR
-// Licence:    wxWindows licence
+// Copyright:   (c) Stefan Csomor
+// Licence:       wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

+//
+// Currently, the only purpose for making a metafile
+// is to put it on the clipboard.

 
 

-#ifdef __GNUG__
-#pragma implementation "metafile.h"
+
+#include "wx/wxprec.h"
+
+#if wxUSE_METAFILE
+
+#ifndef WX_PRECOMP
+    #include "wx/utils.h"
+    #include "wx/app.h"

 #endif
 
 #endif
 

-#include "wx/object.h"
-#include "wx/string.h"
-#include "wx/dc.h"
-#include "wx/stubs/metafile.h"
+#include "wx/metafile.h"

 #include "wx/clipbrd.h"
 #include "wx/clipbrd.h"

+#include "wx/mac/uma.h"
+#include "wx/graphics.h"
+#include "wx/mac/carbon/metafile.h"

 
 

-extern bool wxClipboardIsOpen;
+#include <stdio.h>
+#include <string.h>

 
 

-#if !USE_SHARED_LIBRARY
-IMPLEMENT_DYNAMIC_CLASS(wxMetaFile, wxObject)
-IMPLEMENT_ABSTRACT_CLASS(wxMetaFileDC, wxDC)
-#endif
+IMPLEMENT_DYNAMIC_CLASS(wxMetafile, wxObject)
+IMPLEMENT_ABSTRACT_CLASS(wxMetafileDC, wxDC)
+IMPLEMENT_ABSTRACT_CLASS(wxMetafileDCImpl, wxGCDCImpl)
+
+#define M_METAFILEREFDATA( a ) ((wxMetafileRefData*)(a).GetRefData())
+
+class wxMetafileRefData : public wxGDIRefData
+{
+public:
+    // default ctor needed for CreateGDIRefData(), must be initialized later
+    wxMetafileRefData() { Init(); }
+
+    // creates a metafile from memory, assumes ownership
+    wxMetafileRefData(CFDataRef data);
+
+    // prepares a recording metafile
+    wxMetafileRefData( int width, int height);
+
+    // prepares a metafile to be read from a file (if filename is not empty)
+    wxMetafileRefData( const wxString& filename);
+
+    virtual ~wxMetafileRefData();
+
+    virtual bool IsOk() const { return m_data != NULL; }
+
+    void Init();
+
+    int GetWidth() const { return m_width; }
+    int GetHeight() const { return m_height; }
+
+    CGPDFDocumentRef GetPDFDocument() const { return m_pdfDoc; }
+    void UpdateDocumentFromData() ;
+
+    const wxCFDataRef& GetData() const { return m_data; }
+    CGContextRef GetContext() const { return m_context; }
+
+    // ends the recording
+    void Close();
+private:
+    wxCFDataRef m_data;
+    wxCFRef<CGPDFDocumentRef> m_pdfDoc;
+    CGContextRef m_context;
+
+    int m_width ;
+    int m_height ;
+};
+
+wxMetafileRefData::wxMetafileRefData(CFDataRef data) :
+    m_data(data)
+{
+    Init();
+    UpdateDocumentFromData();
+}
+
+wxMetafileRefData::wxMetafileRefData( const wxString& filename )
+{
+    Init();
+
+    if ( !filename.empty() )
+    {
+        wxCFRef<CFMutableStringRef> cfMutableString(CFStringCreateMutableCopy(NULL, 0, wxCFStringRef(filename)));
+        CFStringNormalize(cfMutableString,kCFStringNormalizationFormD);
+        wxCFRef<CFURLRef> url(CFURLCreateWithFileSystemPath(kCFAllocatorDefault, cfMutableString , kCFURLPOSIXPathStyle, false));
+        m_pdfDoc.reset(CGPDFDocumentCreateWithURL(url));
+    }
+}
+
+
+wxMetafileRefData::wxMetafileRefData( int width, int height)
+{
+    Init();
+
+    m_width = width;
+    m_height = height;
+
+    CGRect r = CGRectMake( 0 , 0 , width  , height );
+
+    CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0);
+    m_data.reset(data);
+    CGDataConsumerRef dataConsumer = wxMacCGDataConsumerCreateWithCFData(data);
+    m_context = CGPDFContextCreate( dataConsumer, (width != 0 && height != 0) ? &r : NULL , NULL );
+    CGDataConsumerRelease( dataConsumer );
+    if ( m_context )
+    {
+        CGPDFContextBeginPage(m_context, NULL);
+
+        CGColorSpaceRef genericColorSpace  = wxMacGetGenericRGBColorSpace();
+
+        CGContextSetFillColorSpace( m_context, genericColorSpace );
+        CGContextSetStrokeColorSpace( m_context, genericColorSpace );
+
+        CGContextTranslateCTM( m_context , 0 ,  height ) ;
+        CGContextScaleCTM( m_context , 1 , -1 ) ;
+    }
+}
+
+wxMetafileRefData::~wxMetafileRefData()
+{
+}
+
+void wxMetafileRefData::Init()
+{
+    m_context = NULL;
+    m_width = -1;
+    m_height = -1;
+}
+
+void wxMetafileRefData::Close()
+{
+    CGPDFContextEndPage(m_context);
+
+    CGContextRelease(m_context);
+    m_context = NULL;
+
+    UpdateDocumentFromData();
+}
+
+void wxMetafileRefData::UpdateDocumentFromData()
+{
+    wxCFRef<CGDataProviderRef> provider(wxMacCGDataProviderCreateWithCFData(m_data));
+    m_pdfDoc.reset(CGPDFDocumentCreateWithProvider(provider));
+    if ( m_pdfDoc != NULL )
+    {
+        CGPDFPageRef page = CGPDFDocumentGetPage( m_pdfDoc, 1 );
+        CGRect rect = CGPDFPageGetBoxRect ( page, kCGPDFMediaBox);
+        m_width = wx_static_cast(int, rect.size.width);
+        m_height = wx_static_cast(int, rect.size.height);
+    }
+}

 
 wxMetaFile::wxMetaFile(const wxString& file)
 {
 
 wxMetaFile::wxMetaFile(const wxString& file)
 {

-    // TODO
+    m_refData = new wxMetafileRefData(file);

 }
 
 wxMetaFile::~wxMetaFile()
 {
 }
 
 wxMetaFile::~wxMetaFile()
 {

-    // TODO

 }
 
 }
 

-bool wxMetaFile::SetClipboard(int width, int height)
+wxGDIRefData *wxMetaFile::CreateGDIRefData() const
+{
+    return new wxMetafileRefData;
+}
+
+wxGDIRefData *wxMetaFile::CloneGDIRefData(const wxGDIRefData *data) const
+{
+    return new wxMetafileRefData(*wx_static_cast(const wxMetafileRefData *, data));
+}
+
+WXHMETAFILE wxMetaFile::GetHMETAFILE() const

 {
 {

-    bool alreadyOpen=wxClipboardOpen();
+    return (WXHMETAFILE) (CFDataRef) M_METAFILEDATA->GetData();
+}
+
+bool wxMetaFile::SetClipboard(int WXUNUSED(width), int WXUNUSED(height))
+{
+    bool success = true;
+
+#if wxUSE_DRAG_AND_DROP
+    if (m_refData == NULL)
+        return false;
+
+    bool alreadyOpen = wxTheClipboard->IsOpened();

     if (!alreadyOpen)
     {
     if (!alreadyOpen)
     {

-        wxOpenClipboard();
-        if (!wxEmptyClipboard()) return FALSE;
+        wxTheClipboard->Open();
+        wxTheClipboard->Clear();

     }
     }

-    bool success = wxSetClipboardData(wxDF_METAFILE,this, width,height);
-    if (!alreadyOpen) wxCloseClipboard();
-    return (bool) success;
+
+    wxDataObject *data = new wxMetafileDataObject( *this );
+    success = wxTheClipboard->SetData( data );
+    if (!alreadyOpen)
+        wxTheClipboard->Close();
+#endif
+
+    return success;

 }
 
 }
 

-bool wxMetaFile::Play(wxDC *dc)
+void wxMetafile::SetHMETAFILE(WXHMETAFILE mf)

 {
 {

-    // TODO
-    return FALSE;
+    UnRef();
+
+    m_refData = new wxMetafileRefData((CFDataRef)mf);

 }
 
 }
 

-/*
- * Metafile device context
- *
- */
+#ifndef __LP64__
+void wxMetafile::SetPICT(void* pictHandle)
+{
+    UnRef();
+
+    Handle picHandle = (Handle) pictHandle;
+    HLock(picHandle);
+    CFDataRef data = CFDataCreateWithBytesNoCopy( kCFAllocatorDefault, (const UInt8*) *picHandle, GetHandleSize(picHandle), kCFAllocatorNull);
+    wxCFRef<CGDataProviderRef> provider(wxMacCGDataProviderCreateWithCFData(data));
+    QDPictRef pictRef = QDPictCreateWithProvider(provider);
+    CGRect rect = QDPictGetBounds(pictRef);
+    m_refData = new wxMetafileRefData(wx_static_cast(int, rect.size.width),
+                                      wx_static_cast(int, rect.size.height));
+    QDPictDrawToCGContext( ((wxMetafileRefData*) m_refData)->GetContext(), rect, pictRef );
+    CFRelease( data );
+    QDPictRelease( pictRef );
+    ((wxMetafileRefData*) m_refData)->Close();
+}
+#endif

 
 

-// Original constructor that does not takes origin and extent. If you use this,
-// *DO* give origin/extent arguments to wxMakeMetaFilePlaceable.
-wxMetaFileDC::wxMetaFileDC(const wxString& file)
+bool wxMetaFile::Play(wxDC *dc)

 {
 {

-    // TODO
+    if (!m_refData)
+        return false;
+
+    if (!dc->IsOk())
+        return false;
+
+    {
+        wxDCImpl *impl = dc->GetImpl();
+        wxGCDCImpl *gc_impl = wxDynamicCast(impl, wxGCDCImpl);
+        if (gc_impl)
+        {
+            CGContextRef cg = (CGContextRef) (gc_impl->GetGraphicsContext()->GetNativeContext());
+            CGPDFDocumentRef doc = M_METAFILEDATA->GetPDFDocument();
+            CGPDFPageRef page = CGPDFDocumentGetPage( doc, 1 );
+            wxMacCGContextStateSaver save(cg);
+            CGContextDrawPDFPage( cg, page );
+        }
+//        CGContextTranslateCTM( cg, 0, bounds.size.width );
+//        CGContextScaleCTM( cg, 1, -1 );
+    }
+
+    return true;

 }
 
 }
 

+wxSize wxMetaFile::GetSize() const
+{
+    wxSize dataSize = wxDefaultSize;
+
+    if (Ok())
+    {
+        dataSize.x = M_METAFILEDATA->GetWidth();
+        dataSize.y = M_METAFILEDATA->GetHeight();
+    }
+
+    return dataSize;
+}
+
+// Metafile device context
+

 // New constructor that takes origin and extent. If you use this, don't
 // give origin/extent arguments to wxMakeMetaFilePlaceable.
 // New constructor that takes origin and extent. If you use this, don't
 // give origin/extent arguments to wxMakeMetaFilePlaceable.

-wxMetaFileDC::wxMetaFileDC(const wxString& file, int xext, int yext, int xorg, int yorg)
+
+wxMetafileDCImpl::wxMetafileDCImpl(
+    wxDC *owner,
+    const wxString& filename,
+    int width, int height,
+    const wxString& WXUNUSED(description) ) :
+    wxGCDCImpl( owner )

 {
 {

-    // TODO
+    wxASSERT_MSG( width != 0 || height != 0, wxT("no arbitration of metafile size supported") );
+    wxASSERT_MSG( filename.empty(), wxT("no file based metafile support yet"));
+
+    m_metaFile = new wxMetaFile( filename );
+    wxMetafileRefData* metafiledata = new wxMetafileRefData(width, height);
+    m_metaFile->UnRef();
+    m_metaFile->SetRefData( metafiledata );
+
+    SetGraphicsContext( wxGraphicsContext::CreateFromNative(metafiledata->GetContext()));
+    m_ok = (m_graphicContext != NULL) ;
+
+    SetMapMode( wxMM_TEXT );

 }
 
 }
 

-wxMetaFileDC::~wxMetaFileDC()
+wxMetafileDCImpl::~wxMetafileDCImpl()

 {
 }
 
 {
 }
 

-void wxMetaFileDC::GetTextExtent(const wxString& string, float *x, float *y,
-                                 float *descent, float *externalLeading, wxFont *theFont, bool use16bit)
+void wxMetafileDCImpl::DoGetSize(int *width, int *height) const

 {
 {

-    // TODO
+    wxCHECK_RET( m_metaFile, wxT("GetSize() doesn't work without a metafile") );
+
+    wxSize sz = m_metaFile->GetSize();
+    if (width)
+        (*width) = sz.x;
+    if (height)
+        (*height) = sz.y;

 }
 
 }
 

-wxMetaFile *wxMetaFileDC::Close()
+wxMetaFile *wxMetafileDCImpl::Close()

 {
 {

-    // TODO
-    return NULL;
+    delete m_graphicContext;
+    m_graphicContext = NULL;
+    m_ok = false;
+
+    M_METAFILEREFDATA(*m_metaFile)->Close();
+
+    return m_metaFile;

 }
 
 }
 

-void wxMetaFileDC::SetMapMode(int mode)
+#if wxUSE_DATAOBJ
+size_t wxMetafileDataObject::GetDataSize() const

 {
 {

-    // TODO
+    CFIndex length = 0;
+    wxMetafileRefData* refData = M_METAFILEREFDATA(m_metafile);
+    if ( refData )
+        length = refData->GetData().GetLength();
+    return length;

 }
 
 }
 

-#if 0
-
-#ifdef __WIN32__
-struct RECT32
+bool wxMetafileDataObject::GetDataHere(void *buf) const

 {
 {

-  short left;
-  short top;
-  short right;
-  short bottom;
-};
+    bool result = false;

 
 

-struct mfPLACEABLEHEADER {
-       DWORD   key;
-       short   hmf;
-       RECT32  bbox;
-       WORD    inch;
-       DWORD   reserved;
-       WORD    checksum;
-};
-#else
-struct mfPLACEABLEHEADER {
-       DWORD   key;
-       HANDLE  hmf;
-       RECT    bbox;
-       WORD    inch;
-       DWORD   reserved;
-       WORD    checksum;
-};
-#endif
-
-/*
- * Pass filename of existing non-placeable metafile, and bounding box.
- * Adds a placeable metafile header, sets the mapping mode to anisotropic,
- * and sets the window origin and extent to mimic the MM_TEXT mapping mode.
- *
- */
- 
-bool wxMakeMetaFilePlaceable(const wxString& filename, float scale)
-{
-  return wxMakeMetaFilePlaceable(filename, 0, 0, 0, 0, scale, FALSE);
-}
-
-bool wxMakeMetaFilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale, bool useOriginAndExtent)
-{
-  // I'm not sure if this is the correct way of suggesting a scale
-  // to the client application, but it's the only way I can find.
-  int unitsPerInch = (int)(576/scale);
-  
-  mfPLACEABLEHEADER header;
-  header.key = 0x9AC6CDD7L;
-  header.hmf = 0;
-  header.bbox.left = (int)(x1);
-  header.bbox.top = (int)(y1);
-  header.bbox.right = (int)(x2);
-  header.bbox.bottom = (int)(y2);
-  header.inch = unitsPerInch;
-  header.reserved = 0;
-
-  // Calculate checksum  
-  WORD *p;
-  mfPLACEABLEHEADER *pMFHead = &header;
-  for (p =(WORD *)pMFHead,pMFHead -> checksum = 0;
-       p < (WORD *)&pMFHead ->checksum; ++p)
-       pMFHead ->checksum ^= *p;
-
-  FILE *fd = fopen((char *)(const char *)filename, "rb");
-  if (!fd) return FALSE;
-  
-  char tempFileBuf[256];
-  wxGetTempFileName("mf", tempFileBuf);
-  FILE *fHandle = fopen(tempFileBuf, "wb");
-  if (!fHandle)
-    return FALSE;
-  fwrite((void *)&header, sizeof(unsigned char), sizeof(mfPLACEABLEHEADER), fHandle);
-
-  // Calculate origin and extent
-  int originX = x1;
-  int originY = y1;
-  int extentX = x2 - x1;
-  int extentY = (y2 - y1);
-
-  // Read metafile header and write
-  METAHEADER metaHeader;
-  fread((void *)&metaHeader, sizeof(unsigned char), sizeof(metaHeader), fd);
-  
-  if (useOriginAndExtent)
-    metaHeader.mtSize += 15;
-  else
-    metaHeader.mtSize += 5;
-    
-  fwrite((void *)&metaHeader, sizeof(unsigned char), sizeof(metaHeader), fHandle);
-
-  // Write SetMapMode, SetWindowOrigin and SetWindowExt records
-  char modeBuffer[8];
-  char originBuffer[10];
-  char extentBuffer[10];
-  METARECORD *modeRecord = (METARECORD *)&modeBuffer;
-
-  METARECORD *originRecord = (METARECORD *)&originBuffer;
-  METARECORD *extentRecord = (METARECORD *)&extentBuffer;
-
-  modeRecord->rdSize = 4;
-  modeRecord->rdFunction = META_SETMAPMODE;
-  modeRecord->rdParm[0] = MM_ANISOTROPIC;
-
-  originRecord->rdSize = 5;
-  originRecord->rdFunction = META_SETWINDOWORG;
-  originRecord->rdParm[0] = originY;
-  originRecord->rdParm[1] = originX;
-
-  extentRecord->rdSize = 5;
-  extentRecord->rdFunction = META_SETWINDOWEXT;
-  extentRecord->rdParm[0] = extentY;
-  extentRecord->rdParm[1] = extentX;
-
-  fwrite((void *)modeBuffer, sizeof(char), 8, fHandle);
-  
-  if (useOriginAndExtent)
-  {
-    fwrite((void *)originBuffer, sizeof(char), 10, fHandle);
-    fwrite((void *)extentBuffer, sizeof(char), 10, fHandle);
-  }
-
-  int ch = -2;
-  while (ch != EOF)
-  {
-    ch = getc(fd);
-    if (ch != EOF)
+    wxMetafileRefData* refData = M_METAFILEREFDATA(m_metafile);
+    if ( refData )

     {
     {

-      putc(ch, fHandle);
+        CFIndex length = refData->GetData().GetLength();
+        if ( length > 0 )
+        {
+            result = true ;
+            refData->GetData().GetBytes(CFRangeMake(0,length), (UInt8 *) buf);
+        }

     }
     }

-  }
-  fclose(fHandle);
-  fclose(fd);
-  wxRemoveFile(filename);
-  wxCopyFile(tempFileBuf, filename);
-  wxRemoveFile(tempFileBuf);
-  return TRUE;
+    return result;

 }
 
 }
 

+bool wxMetafileDataObject::SetData(size_t len, const void *buf)
+{
+    wxMetafileRefData* metafiledata = new wxMetafileRefData(wxCFRefFromGet(wxCFDataRef((UInt8*)buf, len).get()));
+    m_metafile.UnRef();
+    m_metafile.SetRefData( metafiledata );
+    return true;
+}

 #endif
 
 #endif
 

+#endif