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         {
 119                 wxMacPortSetter helper( dc ) ;
 120                 PicHandle pict = GetHMETAFILE() ;
 121                 DrawPicture( pict , &(**pict).picFrame ) ;
 122         }
 123     return TRUE;
 124 }
 125
 126 /*
 127  * Metafile device context
 128  *
 129  */
 130
 131 // Original constructor that does not takes origin and extent. If you use this,
 132 // *DO* give origin/extent arguments to wxMakeMetaFilePlaceable.
 133 wxMetaFileDC::wxMetaFileDC(const wxString& file)
 134 {
 135   m_metaFile = NULL;
 136   m_minX = 10000;
 137   m_minY = 10000;
 138   m_maxX = -10000;
 139   m_maxY = -10000;
 140
 141   wxASSERT_MSG( file.IsEmpty() , "no file based metafile support yet") ;
 142
 143   m_metaFile = new wxMetaFile("") ;
 144   Rect r={0,0,1000,1000} ;
 145
 146   m_metaFile->SetHMETAFILE( OpenPicture( &r ) ) ;
 147   ::GetPort( &m_macPort ) ;
 148   m_ok = TRUE ;
 149
 150   SetMapMode(wxMM_TEXT);
 151 }
 152
 153 // New constructor that takes origin and extent. If you use this, don't
 154 // give origin/extent arguments to wxMakeMetaFilePlaceable.
 155
 156 wxMetaFileDC::wxMetaFileDC(const wxString& file, int xext, int yext, int xorg, int yorg)
 157 {
 158   m_minX = 10000;
 159   m_minY = 10000;
 160   m_maxX = -10000;
 161   m_maxY = -10000;
 162
 163   wxASSERT_MSG( file.IsEmpty() , "no file based metafile support yet") ;
 164
 165         m_metaFile = new wxMetaFile("") ;
 166         Rect r={yorg,xorg,yorg+yext,xorg+xext} ;
 167
 168         m_metaFile->SetHMETAFILE( OpenPicture( &r ) ) ;
 169         ::GetPort( &m_macPort ) ;
 170   m_ok = TRUE ;
 171
 172   SetMapMode(wxMM_TEXT);
 173 }
 174
 175 wxMetaFileDC::~wxMetaFileDC()
 176 {
 177 }
 178
 179 wxMetaFile *wxMetaFileDC::Close()
 180 {
 181         ClosePicture() ;
 182         return m_metaFile;
 183 }
 184
 185 #endif