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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: fontenum.h
3 // Purpose: wxFontEnumerator class for getting available fonts
4 // Author: Julian Smart, Vadim Zeitlin
5 // Modified by: extended to enumerate more than just font facenames and works
6 // not only on Windows now (VZ)
7 // Created: 04/01/98
8 // RCS-ID: $Id$
9 // Copyright: (c) Julian Smart, Vadim Zeitlin
10 // Licence: wxWindows licence
11 /////////////////////////////////////////////////////////////////////////////
12
13 #ifndef _WX_FONTENUM_H_
14 #define _WX_FONTENUM_H_
15
16 #if defined(__GNUG__) && !defined(__APPLE__)
17 #pragma interface "fontenum.h"
18 #endif
19
20 #include "wx/font.h"
21
22 // ----------------------------------------------------------------------------
23 // wxFontEnumerator enumerates all available fonts on the system or only the
24 // fonts with given attributes
25 // ----------------------------------------------------------------------------
26
27 class WXDLLEXPORT wxFontEnumerator
28 {
29 public:
30 wxFontEnumerator() : m_Facenames(NULL), m_Encodings(NULL) { }
31
32 // start enumerating font facenames (either all of them or those which
33 // support the given encoding) - will result in OnFacename() being
34 // called for each available facename (until they are exhausted or
35 // OnFacename returns FALSE)
36 virtual bool EnumerateFacenames
37 (
38 wxFontEncoding encoding = wxFONTENCODING_SYSTEM, // all
39 bool fixedWidthOnly = FALSE
40 );
41
42 // enumerate the different encodings either for given font facename or for
43 // all facenames - will result in OnFontEncoding() being called for each
44 // available (facename, encoding) couple
45 virtual bool EnumerateEncodings(const wxString& facename = wxT(""));
46
47 // callbacks which are called after one of EnumerateXXX() functions from
48 // above is invoked - all of them may return FALSE to stop enumeration or
49 // TRUE to continue with it
50
51 // called by EnumerateFacenames
52 virtual bool OnFacename(const wxString& facename)
53 {
54 if (m_Facenames == NULL) m_Facenames = new wxArrayString;
55 m_Facenames -> Add(facename);
56 return TRUE;
57 }
58
59 // called by EnumerateEncodings
60 virtual bool OnFontEncoding(const wxString& WXUNUSED(facename),
61 const wxString& encoding)
62 {
63 if (m_Encodings == NULL) m_Encodings = new wxArrayString;
64 m_Encodings -> Add(encoding);
65 return TRUE;
66 }
67
68 // convenience function that returns array of facenames. Cannot be called
69 // before EnumerateFacenames.
70 wxArrayString *GetFacenames()
71 { return m_Facenames; }
72
73 // convenience function that returns array of encodings.
74 // Cannot be called before EnumerateEncodings.
75 wxArrayString *GetEncodings()
76 { return m_Encodings; }
77
78 // virtual dtor for the base class
79 virtual ~wxFontEnumerator()
80 {
81 if (m_Facenames) delete m_Facenames;
82 if (m_Encodings) delete m_Encodings;
83 }
84
85 private:
86 wxArrayString *m_Facenames, *m_Encodings;
87 };
88
89 #endif // _WX_FONTENUM_H_