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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