1///////////////////////////////////////////////////////////////////////////////
2// Name:        src/motif/dataobj.cpp
3// Purpose:     wxDataObject class
4// Author:      Julian Smart
5// Id:          $Id: dataobj.cpp 38972 2006-05-02 10:39:23Z ABX $
6// Copyright:   (c) 1998 Julian Smart
7// Licence:     wxWindows licence
8///////////////////////////////////////////////////////////////////////////////
9
10// For compilers that support precompilation, includes "wx.h".
11#include "wx/wxprec.h"
12
13#if wxUSE_CLIPBOARD
14
15#include "wx/dataobj.h"
16
17#ifndef WX_PRECOMP
18    #include "wx/app.h"
19    #include "wx/utils.h"
20#endif
21
22#ifdef __VMS__
23#pragma message disable nosimpint
24#endif
25#include <Xm/Xm.h>
26#ifdef __VMS__
27#pragma message enable nosimpint
28#endif
29
30#include "wx/motif/private.h"
31
32//-------------------------------------------------------------------------
33// global data
34//-------------------------------------------------------------------------
35
36Atom  g_textAtom        = 0;
37Atom  g_bitmapAtom      = 0;
38Atom  g_fileAtom        = 0;
39
40//-------------------------------------------------------------------------
41// wxDataFormat
42//-------------------------------------------------------------------------
43
44wxDataFormat::wxDataFormat()
45{
46    // do *not* call PrepareFormats() from here for 2 reasons:
47    //
48    // 1. we will have time to do it later because some other Set function
49    //    must be called before we really need them
50    //
51    // 2. doing so prevents us from declaring global wxDataFormats because
52    //    calling PrepareFormats (and thus gdk_atom_intern) before GDK is
53    //    initialised will result in a crash
54    m_type = wxDF_INVALID;
55    m_format = (Atom) 0;
56}
57
58wxDataFormat::wxDataFormat( wxDataFormatId type )
59{
60    PrepareFormats();
61    SetType( type );
62}
63
64wxDataFormat::wxDataFormat( const wxChar *id )
65{
66    PrepareFormats();
67    SetId( id );
68}
69
70wxDataFormat::wxDataFormat( const wxString &id )
71{
72    PrepareFormats();
73    SetId( id );
74}
75
76wxDataFormat::wxDataFormat( NativeFormat format )
77{
78    PrepareFormats();
79    SetId( format );
80}
81
82void wxDataFormat::SetType( wxDataFormatId type )
83{
84    PrepareFormats();
85    m_type = type;
86
87    if (m_type == wxDF_TEXT)
88        m_format = g_textAtom;
89    else
90    if (m_type == wxDF_BITMAP)
91        m_format = g_bitmapAtom;
92    else
93    if (m_type == wxDF_FILENAME)
94        m_format = g_fileAtom;
95    else
96    {
97       wxFAIL_MSG( wxT("invalid dataformat") );
98    }
99}
100
101wxDataFormatId wxDataFormat::GetType() const
102{
103    return m_type;
104}
105
106wxString wxDataFormat::GetId() const
107{
108    char *t = XGetAtomName ((Display*) wxGetDisplay(), m_format);
109    wxString ret( t );  // this will convert from ascii to Unicode
110    if (t)
111        XFree( t );
112    return ret;
113}
114
115void wxDataFormat::SetId( NativeFormat format )
116{
117    PrepareFormats();
118    m_format = format;
119
120    if (m_format == g_textAtom)
121        m_type = wxDF_TEXT;
122    else
123    if (m_format == g_bitmapAtom)
124        m_type = wxDF_BITMAP;
125    else
126    if (m_format == g_fileAtom)
127        m_type = wxDF_FILENAME;
128    else
129        m_type = wxDF_PRIVATE;
130}
131
132void wxDataFormat::SetId( const wxChar *id )
133{
134    PrepareFormats();
135    m_type = wxDF_PRIVATE;
136    wxString tmp( id );
137    m_format = XInternAtom( wxGlobalDisplay(),
138                            tmp.mbc_str(), False );
139}
140
141void wxDataFormat::PrepareFormats()
142{
143    if (!g_textAtom)
144        g_textAtom = XInternAtom( wxGlobalDisplay(), "STRING", False );
145    if (!g_bitmapAtom)
146        g_bitmapAtom = XInternAtom( wxGlobalDisplay(), "PIXMAP", False );
147    if (!g_fileAtom)
148        g_fileAtom = XInternAtom( wxGlobalDisplay(), "file:ALL", False );
149}
150
151// ----------------------------------------------------------------------------
152// wxDataObject
153// ----------------------------------------------------------------------------
154
155wxDataObject::~wxDataObject()
156{
157}
158
159// ----------------------------------------------------------------------------
160// wxBitmapDataObject
161// ----------------------------------------------------------------------------
162
163size_t wxBitmapDataObject::GetDataSize() const
164{
165    return sizeof(Pixmap);
166}
167
168bool wxBitmapDataObject::GetDataHere(void* buf) const
169{
170    if( !GetBitmap().Ok() )
171        return false;
172
173    (*(Pixmap*)buf) = (Pixmap)GetBitmap().GetDrawable();
174
175    return true;
176}
177
178bool wxBitmapDataObject::SetData(size_t len, const void* buf)
179{
180    if( len != sizeof(Pixmap) )
181        return false;
182
183    WXPixmap pixmap = (WXPixmap)*(Pixmap*)buf;
184
185    m_bitmap.Create( pixmap );
186
187    return true;
188}
189
190#endif // wxUSE_CLIPBOARD
191