summaryrefslogtreecommitdiff
path: root/libjava/classpath/native/jni/gtk-peer/GtkDragSourceContextPeer.c
blob: aee61bd08f614719e3985f07e0bfc9eefaa961fd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
/* gtkdragsourcecontextpeer.c -- Native implementation of GtkDragSourceContextPeer
   Copyright (C) 2006 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.

As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module.  An independent module is a module which is not derived from
or based on this library.  If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so.  If you do not wish to do so, delete this
exception statement from your version. */

#include "gtkpeer.h"
#include "gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer.h"

#include <jni.h>
#include <gtk/gtk.h>

static GtkWidget * get_widget (GtkWidget *widget);
static void connect_signals_for_widget (GtkWidget *widget);
                                         
#define ACTION_COPY 1
#define ACTION_MOVE 2
#define ACTION_COPY_OR_MOVE  3
#define ACTION_LINK 1073741824

#define AWT_DEFAULT_CURSOR 0
#define AWT_CROSSHAIR_CURSOR 1
#define AWT_TEXT_CURSOR 2
#define AWT_WAIT_CURSOR 3
#define AWT_SW_RESIZE_CURSOR 4
#define AWT_SE_RESIZE_CURSOR 5
#define AWT_NW_RESIZE_CURSOR 6
#define AWT_NE_RESIZE_CURSOR 7
#define AWT_N_RESIZE_CURSOR 8
#define AWT_S_RESIZE_CURSOR 9
#define AWT_W_RESIZE_CURSOR 10
#define AWT_E_RESIZE_CURSOR 11
#define AWT_HAND_CURSOR 12
#define AWT_MOVE_CURSOR 13

static jmethodID dragEnterID;
static jmethodID dragExitID;
static jmethodID dragDropEndID;
static jmethodID dragMouseMovedID;
static jmethodID dragOverID;
static jmethodID dragActionChangedID;
static jmethodID acceptDragID;
static jmethodID rejectDragID;
static jmethodID acceptDropID;
static jmethodID rejectDropID;
static jmethodID dropCompleteID;

GtkWidget *widget;
GtkWidget *tgt;
jobject gref;
jobject javaObj;

JNIEXPORT void JNICALL 
Java_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer_create 
  (JNIEnv *env, jobject obj, jobject comp)
{  
  gdk_threads_enter ();
 
  javaObj = obj;
  gtkpeer_set_global_ref (env, obj);  
  gtkpeer_set_global_ref (env, comp);
  
  gref = gtkpeer_get_widget (env, comp);
  widget = get_widget (GTK_WIDGET (gref));

  gdk_threads_leave ();
}

JNIEXPORT void JNICALL 
Java_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer_nativeSetCursor
  (JNIEnv *env, jobject obj, jint type)
{
  void *ptr;
  GdkWindow *win;
  GdkCursorType gdk_cursor_type;
  GdkCursor *gdk_cursor;

  gdk_threads_enter ();

  javaObj = obj;
  ptr = gtkpeer_get_global_ref (env, obj);
  
  switch (type)
    {
    case AWT_CROSSHAIR_CURSOR:
      gdk_cursor_type = GDK_CROSSHAIR;
      break;
    case AWT_TEXT_CURSOR:
      gdk_cursor_type = GDK_XTERM;
      break;
    case AWT_WAIT_CURSOR:
      gdk_cursor_type = GDK_WATCH;
      break;
    case AWT_SW_RESIZE_CURSOR:
      gdk_cursor_type = GDK_BOTTOM_LEFT_CORNER;
      break;
    case AWT_SE_RESIZE_CURSOR:
      gdk_cursor_type = GDK_BOTTOM_RIGHT_CORNER;
      break;
    case AWT_NW_RESIZE_CURSOR:
      gdk_cursor_type = GDK_TOP_LEFT_CORNER;
      break;
    case AWT_NE_RESIZE_CURSOR:
      gdk_cursor_type = GDK_TOP_RIGHT_CORNER;
      break;
    case AWT_N_RESIZE_CURSOR:
      gdk_cursor_type = GDK_TOP_SIDE;
      break;
    case AWT_S_RESIZE_CURSOR:
      gdk_cursor_type = GDK_BOTTOM_SIDE;
      break;
    case AWT_W_RESIZE_CURSOR:
      gdk_cursor_type = GDK_LEFT_SIDE;
      break;
    case AWT_E_RESIZE_CURSOR:
      gdk_cursor_type = GDK_RIGHT_SIDE;
      break;
    case AWT_HAND_CURSOR:
      gdk_cursor_type = GDK_HAND2;
      break;
    case AWT_MOVE_CURSOR:
      gdk_cursor_type = GDK_FLEUR;
      break;
    default:
      gdk_cursor_type = GDK_LEFT_PTR;
    }
  
  win = widget->window;
  if ((widget->window) == NULL)
    win = widget->window;
    
  gdk_cursor = gdk_cursor_new (gdk_cursor_type);

  gdk_window_set_cursor (win, gdk_cursor);
  gdk_cursor_unref (gdk_cursor);

  gdk_flush();
  
  gdk_threads_leave ();
}

JNIEXPORT void JNICALL 
Java_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer_connectSignals 
  (JNIEnv *env, jobject obj, jobject comp)
{
  jclass gtkdragsourcecontextpeer;
  jclass gtkdroptargetcontextpeer;
  
  gdk_threads_enter ();

  javaObj = obj;
  gref = gtkpeer_get_global_ref (env, comp);
  
  connect_signals_for_widget (widget);

  gtkdragsourcecontextpeer = (*cp_gtk_gdk_env())->FindClass (cp_gtk_gdk_env(),
                         "gnu/java/awt/dnd/peer/gtk/GtkDragSourceContextPeer");
  
  dragEnterID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), 
                                            gtkdragsourcecontextpeer,
                                               "dragEnter", "(II)V");
  dragExitID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), 
                                            gtkdragsourcecontextpeer,
                                               "dragExit", "(III)V");
  dragDropEndID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), 
                                             gtkdragsourcecontextpeer,
                                               "dragDropEnd", "(IZII)V");
  dragMouseMovedID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(),
                                             gtkdragsourcecontextpeer,
                                               "dragMouseMoved", "(II)V");
  dragOverID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(),
                                             gtkdragsourcecontextpeer,
                                               "dragOver", "(II)V");
  dragActionChangedID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(),
                                             gtkdragsourcecontextpeer,
                                               "dragActionChanged", "(II)V");


  gtkdroptargetcontextpeer = (*cp_gtk_gdk_env())->FindClass (cp_gtk_gdk_env(),
                         "gnu/java/awt/dnd/peer/gtk/GtkDropTargetContextPeer");
                         
  acceptDragID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), 
                                            gtkdroptargetcontextpeer,
                                               "acceptDrag", "(I)V");
  rejectDragID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), 
                                            gtkdroptargetcontextpeer,
                                               "rejectDrag", "()V");
  acceptDropID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), 
                                             gtkdroptargetcontextpeer,
                                               "acceptDrop", "(I)V");
  rejectDropID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(),
                                             gtkdroptargetcontextpeer,
                                               "rejectDrop", "()V");
  dropCompleteID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(),
                                             gtkdroptargetcontextpeer,
                                               "dropComplete", "(Z)V");
  
  gdk_threads_leave ();
}

static void
connect_signals_for_widget (GtkWidget *w)
{
  /* FIXME: Not implemented. */
  w = NULL;
}

JNIEXPORT void JNICALL 
Java_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer_setTarget
  (JNIEnv *env, jobject obj, jobject target)
{
  void *ptr;
  
  gdk_threads_enter ();
  
  javaObj = obj;
  ptr = gtkpeer_get_widget (env, target);
  tgt = get_widget (GTK_WIDGET (ptr));
  connect_signals_for_widget (tgt);

  gdk_threads_leave ();
}

JNIEXPORT void JNICALL 
Java_gnu_java_awt_dnd_peer_gtk_GtkDragSourceContextPeer_nativeStartDrag
  (JNIEnv *env, jobject obj, jobject img, jint x, jint y, jint act,
   jstring target)
{
  void *ptr;
  const gchar *data;
  GtkTargetEntry tar[1];
  GdkEvent *event;
  GdkPixbuf *image = NULL;
  GdkDragContext *context = NULL;
  GdkDragAction action = GDK_ACTION_DEFAULT;
  
  gdk_threads_enter ();
  
  javaObj = obj;
  ptr = gtkpeer_get_global_ref (env, obj);

  data = (*env)->GetStringUTFChars (env, target, NULL);
  tar[0].target = (gchar *) data;  
  event = gdk_event_new (GDK_ALL_EVENTS_MASK);
  
  switch (act)
    {
    case ACTION_COPY:
      action = GDK_ACTION_COPY;
      break;
    case ACTION_MOVE:
      action = GDK_ACTION_MOVE;
      break;
    case ACTION_COPY_OR_MOVE:
      action = GDK_ACTION_COPY | GDK_ACTION_MOVE;
      break;
    case ACTION_LINK:
      action = GDK_ACTION_LINK;
      break;
    default:
      action = GDK_ACTION_DEFAULT;
    }

  gtk_drag_dest_set (widget, GTK_DEST_DEFAULT_ALL, tar,
                                             sizeof (tar) / sizeof (GtkTargetEntry),
                                             action);
  context = gtk_drag_begin (widget, 
             gtk_target_list_new (tar, sizeof (tar) / sizeof (GtkTargetEntry)), 
             action, GDK_BUTTON1_MASK | GDK_BUTTON2_MASK, event);

  if (img != NULL)
  {
    image = cp_gtk_image_get_pixbuf (env, img);
    gtk_drag_set_icon_pixbuf (context, image, x, y);
  }
  
  if (tgt != NULL)
    gtk_drag_dest_set (tgt, GTK_DEST_DEFAULT_ALL, tar,
                                        sizeof (tar) / sizeof (GtkTargetEntry),
                                         action);

  gdk_event_free (event);
  (*env)->ReleaseStringUTFChars (env, target, data);  
  
  gdk_threads_leave ();
}

static GtkWidget *
get_widget (GtkWidget *widget)
{
  GtkWidget *w;
  
  if (GTK_IS_EVENT_BOX (widget) || GTK_IS_CONTAINER (widget))
    w = gtk_bin_get_child (GTK_BIN(widget));
  else
    w = widget;

  return w;
}