src/mac/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 (!m_refData)
  87         return FALSE;
  88
  89     bool alreadyOpen=wxClipboardOpen();
  90     if (!alreadyOpen)
  91     {
  92         wxOpenClipboard();
  93         if (!wxEmptyClipboard()) return FALSE;
  94     }
  95     bool success = wxSetClipboardData(wxDF_METAFILE, this, width,height);
  96     if (!alreadyOpen) wxCloseClipboard();
  97             return (bool) success;
  98
  99     return TRUE ;
 100 }
 101
 102 void wxMetafile::SetHMETAFILE(PicHandle mf)
 103 {
 104     if (!m_refData)
 105         m_refData = new wxMetafileRefData;
 106
 107     M_METAFILEDATA->m_metafile = mf;
 108 }
 109
 110 bool wxMetaFile::Play(wxDC *dc)
 111 {
 112   if (!m_refData)
 113     return FALSE;
 114
 115         if (!dc->Ok() )
 116                 return FALSE;
 117
 118         dc->MacVerifySetup() ;
 119
 120         {
 121                 PicHandle pict = GetHMETAFILE() ;
 122                 DrawPicture( pict , &(**pict).picFrame ) ;
 123         }
 124 /*
 125     if (!m_refData)
 126         return FALSE;
 127
 128     dc->BeginDrawing();
 129
 130     if (dc->GetHDC() && M_METAFILEDATA->m_metafile)
 131         PlayMetaFile((HDC) dc->GetHDC(), (HMETAFILE) M_METAFILEDATA->m_metafile);
 132
 133     dc->EndDrawing();
 134 */
 135     return TRUE;
 136 }
 137
 138 /*
 139  * Metafile device context
 140  *
 141  */
 142
 143 // Original constructor that does not takes origin and extent. If you use this,
 144 // *DO* give origin/extent arguments to wxMakeMetaFilePlaceable.
 145 wxMetaFileDC::wxMetaFileDC(const wxString& file)
 146 {
 147   m_metaFile = NULL;
 148   m_minX = 10000;
 149   m_minY = 10000;
 150   m_maxX = -10000;
 151   m_maxY = -10000;
 152
 153   wxASSERT_MSG( file.IsEmpty() , "no file based metafile support yet") ;
 154
 155   m_metaFile = new wxMetaFile("") ;
 156   Rect r={0,0,1000,1000} ;
 157
 158   m_metaFile->SetHMETAFILE( OpenPicture( &r ) ) ;
 159   ::GetPort( &m_macPort ) ;
 160   m_ok = TRUE ;
 161
 162   SetMapMode(wxMM_TEXT);
 163 }
 164
 165 // New constructor that takes origin and extent. If you use this, don't
 166 // give origin/extent arguments to wxMakeMetaFilePlaceable.
 167
 168 wxMetaFileDC::wxMetaFileDC(const wxString& file, int xext, int yext, int xorg, int yorg)
 169 {
 170   m_minX = 10000;
 171   m_minY = 10000;
 172   m_maxX = -10000;
 173   m_maxY = -10000;
 174
 175   wxASSERT_MSG( file.IsEmpty() , "no file based metafile support yet") ;
 176
 177         m_metaFile = new wxMetaFile("") ;
 178         Rect r={yorg,xorg,yorg+yext,xorg+xext} ;
 179
 180         m_metaFile->SetHMETAFILE( OpenPicture( &r ) ) ;
 181         ::GetPort( &m_macPort ) ;
 182   m_ok = TRUE ;
 183
 184   SetMapMode(wxMM_TEXT);
 185 }
 186
 187 wxMetaFileDC::~wxMetaFileDC()
 188 {
 189 }
 190
 191 wxMetaFile *wxMetaFileDC::Close()
 192 {
 193         ClosePicture() ;
 194         return m_metaFile;
 195 }
 196
 197 #endif