src/mac/carbon/metafile.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        metafile.cpp
   3 // Purpose:     wxMetaFile, wxMetaFileDC etc. These classes are optional.
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "metafile.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/setup.h"
  25 #endif
  26
  27 #if wxUSE_METAFILE
  28
  29 #ifndef WX_PRECOMP
  30 #include "wx/utils.h"
  31 #include "wx/app.h"
  32 #endif
  33
  34 #include "wx/metafile.h"
  35 #include "wx/clipbrd.h"
  36
  37 #include <stdio.h>
  38 #include <string.h>
  39
  40 extern bool wxClipboardIsOpen;
  41
  42 #if !USE_SHARED_LIBRARY
  43 IMPLEMENT_DYNAMIC_CLASS(wxMetafile, wxObject)
  44 IMPLEMENT_ABSTRACT_CLASS(wxMetafileDC, wxDC)
  45 #endif
  46
  47 /*
  48  * Metafiles
  49  * Currently, the only purpose for making a metafile is to put
  50  * it on the clipboard.
  51  */
  52
  53 wxMetafileRefData::wxMetafileRefData(void)
  54 {
  55     m_metafile = 0;
  56 }
  57
  58 wxMetafileRefData::~wxMetafileRefData(void)
  59 {
  60     if (m_metafile)
  61     {
  62                 KillPicture( m_metafile ) ;
  63         m_metafile = 0;
  64     }
  65 }
  66
  67 wxMetaFile::wxMetaFile(const wxString& file)
  68 {
  69     m_refData = new wxMetafileRefData;
  70
  71
  72     M_METAFILEDATA->m_metafile = 0;
  73     wxASSERT_MSG( file.IsEmpty() , "no file based metafile support yet") ;
  74 /*
  75     if (!file.IsNull() && (file.Cmp("") == 0))
  76         M_METAFILEDATA->m_metafile = (WXHANDLE) GetMetaFile(file);
  77 */
  78 }
  79
  80 wxMetaFile::~wxMetaFile()
  81 {
  82 }
  83
  84 bool wxMetaFile::SetClipboard(int width, int height)
  85 {
  86 #if wxUSE_DRAG_AND_DROP
  87 //TODO finishi this port , we need the data obj first
  88     if (!m_refData)
  89         return FALSE;
  90
  91     bool alreadyOpen=wxTheClipboard->IsOpened() ;
  92     if (!alreadyOpen)
  93     {
  94         wxTheClipboard->Open();
  95         wxTheClipboard->Clear();
  96     }
  97     wxDataObject *data =
  98       new wxMetafileDataObject( *this) ;
  99     bool success = wxTheClipboard->SetData(data);
 100     if (!alreadyOpen)
 101       wxTheClipboard->Close();
 102             return (bool) success;
 103 #endif
 104     return TRUE ;
 105 }
 106
 107 void wxMetafile::SetHMETAFILE(PicHandle mf)
 108 {
 109     if (!m_refData)
 110         m_refData = new wxMetafileRefData;
 111
 112     M_METAFILEDATA->m_metafile = mf;
 113 }
 114
 115 bool wxMetaFile::Play(wxDC *dc)
 116 {
 117   if (!m_refData)
 118     return FALSE;
 119
 120         if (!dc->Ok() )
 121                 return FALSE;
 122
 123         {
 124                 wxMacPortSetter helper( dc ) ;
 125                 PicHandle pict = GetHMETAFILE() ;
 126                 DrawPicture( pict , &(**pict).picFrame ) ;
 127         }
 128     return TRUE;
 129 }
 130
 131 /*
 132  * Metafile device context
 133  *
 134  */
 135
 136 // Original constructor that does not takes origin and extent. If you use this,
 137 // *DO* give origin/extent arguments to wxMakeMetaFilePlaceable.
 138 wxMetaFileDC::wxMetaFileDC(const wxString& file)
 139 {
 140   m_metaFile = NULL;
 141   m_minX = 10000;
 142   m_minY = 10000;
 143   m_maxX = -10000;
 144   m_maxY = -10000;
 145
 146   wxASSERT_MSG( file.IsEmpty() , "no file based metafile support yet") ;
 147
 148   m_metaFile = new wxMetaFile("") ;
 149   Rect r={0,0,1000,1000} ;
 150
 151   m_metaFile->SetHMETAFILE( OpenPicture( &r ) ) ;
 152   ::GetPort( &m_macPort ) ;
 153   m_ok = TRUE ;
 154
 155   SetMapMode(wxMM_TEXT);
 156 }
 157
 158 // New constructor that takes origin and extent. If you use this, don't
 159 // give origin/extent arguments to wxMakeMetaFilePlaceable.
 160
 161 wxMetaFileDC::wxMetaFileDC(const wxString& file, int xext, int yext, int xorg, int yorg)
 162 {
 163   m_minX = 10000;
 164   m_minY = 10000;
 165   m_maxX = -10000;
 166   m_maxY = -10000;
 167
 168   wxASSERT_MSG( file.IsEmpty() , "no file based metafile support yet") ;
 169
 170         m_metaFile = new wxMetaFile("") ;
 171         Rect r={yorg,xorg,yorg+yext,xorg+xext} ;
 172
 173         m_metaFile->SetHMETAFILE( OpenPicture( &r ) ) ;
 174         ::GetPort( &m_macPort ) ;
 175   m_ok = TRUE ;
 176
 177   SetMapMode(wxMM_TEXT);
 178 }
 179
 180 wxMetaFileDC::~wxMetaFileDC()
 181 {
 182 }
 183
 184 wxMetaFile *wxMetaFileDC::Close()
 185 {
 186         ClosePicture() ;
 187         return m_metaFile;
 188 }
 189
 190 #if wxUSE_DATAOBJ
 191 size_t wxMetafileDataObject::GetDataSize() const
 192 {
 193   return GetHandleSize( (Handle) (*((wxMetafile*)&m_metafile)).GetHMETAFILE() ) ;
 194 }
 195
 196 bool wxMetafileDataObject::GetDataHere(void *buf) const
 197 {
 198   memcpy( buf , (*(*((wxMetafile*)&m_metafile)).GetHMETAFILE()) ,
 199     GetHandleSize( (Handle) (*((wxMetafile*)&m_metafile)).GetHMETAFILE() ) ) ;
 200   return true ;
 201 }
 202
 203 bool wxMetafileDataObject::SetData(size_t len, const void *buf)
 204 {
 205   Handle handle = (Handle) m_metafile.GetHMETAFILE() ;
 206   SetHandleSize( handle , len ) ;
 207   memcpy( *handle , buf , len ) ;
 208   return true ;
 209 }
 210 #endif
 211
 212 #endif