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1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: dnd.cpp
3 // Purpose: wxDropTarget, wxDropSource classes
4 // Author: Julian Smart
5 // Id: $Id$
6 // Copyright: (c) 1998 Julian Smart
7 // Licence: wxWindows licence
8 ///////////////////////////////////////////////////////////////////////////////
9
10 #include "wx/setup.h"
11
12 #if wxUSE_DRAG_AND_DROP
13
14 #include "wx/dnd.h"
15 #include "wx/window.h"
16 #include "wx/app.h"
17 #include "wx/gdicmn.h"
18 #include "wx/intl.h"
19 #include "wx/utils.h"
20 #include "wx/log.h"
21
22 #include <X11/Xlib.h>
23
24 // ----------------------------------------------------------------------------
25 // global
26 // ----------------------------------------------------------------------------
27
28 // ----------------------------------------------------------------------------
29 // wxDropTarget
30 // ----------------------------------------------------------------------------
31
32 wxDropTarget::wxDropTarget()
33 {
34 }
35
36 wxDropTarget::~wxDropTarget()
37 {
38 }
39
40 // ----------------------------------------------------------------------------
41 // wxTextDropTarget
42 // ----------------------------------------------------------------------------
43
44 bool wxTextDropTarget::OnDrop( long x, long y, const void *data, size_t WXUNUSED(size) )
45 {
46 OnDropText( x, y, (const char*)data );
47 return TRUE;
48 }
49
50 bool wxTextDropTarget::OnDropText( long x, long y, const char *psz )
51 {
52 wxLogDebug( "Got dropped text: %s.", psz );
53 wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
54 return TRUE;
55 }
56
57 size_t wxTextDropTarget::GetFormatCount() const
58 {
59 return 1;
60 }
61
62 wxDataFormat wxTextDropTarget::GetFormat(size_t WXUNUSED(n)) const
63 {
64 return wxDF_TEXT;
65 }
66
67 // ----------------------------------------------------------------------------
68 // wxFileDropTarget
69 // ----------------------------------------------------------------------------
70
71 bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const aszFiles[] )
72 {
73 wxLogDebug( "Got %d dropped files.", (int)nFiles );
74 wxLogDebug( "At x: %d, y: %d.", (int)x, (int)y );
75 size_t i;
76 for (i = 0; i < nFiles; i++)
77 {
78 wxLogDebug( aszFiles[i] );
79 }
80 return TRUE;
81 }
82
83 bool wxFileDropTarget::OnDrop(long x, long y, const void *data, size_t size )
84 {
85 size_t number = 0;
86 char *text = (char*) data;
87 size_t i;
88 for (i = 0; i < size; i++)
89 if (text[i] == 0) number++;
90
91 if (number == 0) return TRUE;
92
93 char **files = new char*[number];
94
95 text = (char*) data;
96 for ( i = 0; i < number; i++)
97 {
98 files[i] = text;
99 int len = strlen( text );
100 text += len+1;
101 }
102
103 bool ret = OnDropFiles( x, y, 1, files );
104
105 free( files );
106
107 return ret;
108 }
109
110 size_t wxFileDropTarget::GetFormatCount() const
111 {
112 return 1;
113 }
114
115 wxDataFormat wxFileDropTarget::GetFormat(size_t WXUNUSED(n)) const
116 {
117 return wxDF_FILENAME;
118 }
119
120 //-------------------------------------------------------------------------
121 // wxDropSource
122 //-------------------------------------------------------------------------
123
124 wxDropSource::wxDropSource( wxWindow *win )
125 {
126 #if 0
127 m_window = win;
128 m_data = (wxDataObject *) NULL;
129 m_retValue = wxDragCancel;
130
131 m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
132 m_goaheadCursor = wxCursor( wxCURSOR_HAND );
133 #endif
134 }
135
136 wxDropSource::wxDropSource( wxDataObject &data, wxWindow *win )
137 {
138 #if 0
139 g_blockEventsOnDrag = TRUE;
140
141 m_window = win;
142 m_widget = win->m_widget;
143 if (win->m_wxwindow) m_widget = win->m_wxwindow;
144 m_retValue = wxDragCancel;
145
146 m_data = &data;
147
148 m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
149 m_goaheadCursor = wxCursor( wxCURSOR_HAND );
150 #endif
151 }
152
153 void wxDropSource::SetData( wxDataObject &data )
154 {
155 // m_data = &data;
156 }
157
158 wxDropSource::~wxDropSource(void)
159 {
160 // if (m_data) delete m_data;
161 }
162
163 wxDragResult wxDropSource::DoDragDrop( int WXUNUSED(flags) )
164 {
165 // wxASSERT_MSG( m_data, "wxDragSource: no data" );
166
167 return wxDragNone;
168 #if 0
169 if (!m_data) return (wxDragResult) wxDragNone;
170 if (m_data->GetDataSize() == 0) return (wxDragResult) wxDragNone;
171
172 RegisterWindow();
173
174 // TODO
175
176 UnregisterWindow();
177
178 g_blockEventsOnDrag = FALSE;
179
180 return m_retValue;
181 #endif
182 }
183
184 #if 0
185 void wxDropSource::RegisterWindow(void)
186 {
187 if (!m_data) return;
188
189 wxString formats;
190
191 wxDataFormat df = m_data->GetPreferredFormat();
192
193 switch (df)
194 {
195 case wxDF_TEXT:
196 formats += "text/plain";
197 break;
198 case wxDF_FILENAME:
199 formats += "file:ALL";
200 break;
201 default:
202 break;
203 }
204
205 char *str = WXSTRINGCAST formats;
206
207 // TODO
208 }
209
210 void wxDropSource::UnregisterWindow(void)
211 {
212 if (!m_widget) return;
213
214 // TODO
215 }
216 #endif
217
218 wxPrivateDropTarget::wxPrivateDropTarget()
219 {
220 m_id = wxTheApp->GetAppName();
221 }
222
223 size_t wxPrivateDropTarget::GetFormatCount() const
224 {
225 return 1;
226 }
227
228 wxDataFormat wxPrivateDropTarget::GetFormat(size_t n) const
229 {
230 return wxDF_INVALID;
231 }
232
233 #endif
234 // wxUSE_DRAG_AND_DROP