1 /*
2  * Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 #ifndef _GTK_INTERFACE_H
26 #define _GTK_INTERFACE_H
27 
28 #include <X11/X.h>
29 #include <jni.h>
30 
31 #ifndef FALSE
32 #define FALSE           (0)
33 #define TRUE            (!FALSE)
34 #endif
35 
36 #define GTHREAD_LIB_VERSIONED VERSIONED_JNI_LIB_NAME("gthread-2.0", "0")
37 #define GTHREAD_LIB JNI_LIB_NAME("gthread-2.0")
38 
39 #define _G_TYPE_CIC(ip, gt, ct)       ((ct*) ip)
40 #define G_TYPE_CHECK_INSTANCE_CAST(instance, g_type, c_type)  \
41                                     (_G_TYPE_CIC ((instance), (g_type), c_type))
42 #define GTK_TYPE_FILE_CHOOSER             (fp_gtk_file_chooser_get_type ())
43 #define GTK_FILE_CHOOSER(obj) \
44      (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_FILE_CHOOSER, GtkFileChooser))
45 #define G_CALLBACK(f) ((GCallback) (f))
46 #define G_TYPE_FUNDAMENTAL_SHIFT (2)
47 #define G_TYPE_MAKE_FUNDAMENTAL(x) ((GType) ((x) << G_TYPE_FUNDAMENTAL_SHIFT))
48 #define G_TYPE_OBJECT G_TYPE_MAKE_FUNDAMENTAL (20)
49 #define GTK_STOCK_CANCEL           "gtk-cancel"
50 #define GTK_STOCK_SAVE             "gtk-save"
51 #define GTK_STOCK_OPEN             "gtk-open"
52 #define GDK_CURRENT_TIME           0L
53 
54 #define G_TYPE_INVALID                  G_TYPE_MAKE_FUNDAMENTAL (0)
55 #define G_TYPE_NONE                     G_TYPE_MAKE_FUNDAMENTAL (1)
56 #define G_TYPE_INTERFACE                G_TYPE_MAKE_FUNDAMENTAL (2)
57 #define G_TYPE_CHAR                     G_TYPE_MAKE_FUNDAMENTAL (3)
58 #define G_TYPE_UCHAR                    G_TYPE_MAKE_FUNDAMENTAL (4)
59 #define G_TYPE_BOOLEAN                  G_TYPE_MAKE_FUNDAMENTAL (5)
60 #define G_TYPE_INT                      G_TYPE_MAKE_FUNDAMENTAL (6)
61 #define G_TYPE_UINT                     G_TYPE_MAKE_FUNDAMENTAL (7)
62 #define G_TYPE_LONG                     G_TYPE_MAKE_FUNDAMENTAL (8)
63 #define G_TYPE_ULONG                    G_TYPE_MAKE_FUNDAMENTAL (9)
64 #define G_TYPE_INT64                    G_TYPE_MAKE_FUNDAMENTAL (10)
65 #define G_TYPE_UINT64                   G_TYPE_MAKE_FUNDAMENTAL (11)
66 #define G_TYPE_ENUM                     G_TYPE_MAKE_FUNDAMENTAL (12)
67 #define G_TYPE_FLAGS                    G_TYPE_MAKE_FUNDAMENTAL (13)
68 #define G_TYPE_FLOAT                    G_TYPE_MAKE_FUNDAMENTAL (14)
69 #define G_TYPE_DOUBLE                   G_TYPE_MAKE_FUNDAMENTAL (15)
70 #define G_TYPE_STRING                   G_TYPE_MAKE_FUNDAMENTAL (16)
71 #define G_TYPE_POINTER                  G_TYPE_MAKE_FUNDAMENTAL (17)
72 #define G_TYPE_BOXED                    G_TYPE_MAKE_FUNDAMENTAL (18)
73 #define G_TYPE_PARAM                    G_TYPE_MAKE_FUNDAMENTAL (19)
74 #define G_TYPE_OBJECT                   G_TYPE_MAKE_FUNDAMENTAL (20)
75 
76 #define GTK_TYPE_BORDER                 ((*fp_gtk_border_get_type)())
77 
78 #define G_TYPE_FUNDAMENTAL_SHIFT        (2)
79 #define G_TYPE_MAKE_FUNDAMENTAL(x)      ((GType) ((x) << G_TYPE_FUNDAMENTAL_SHIFT))
80 
81 #ifndef MIN
82 #define MIN(a, b)  (((a) < (b)) ? (a) : (b))
83 #endif
84 
85 #define CONV_BUFFER_SIZE 128
86 #define NO_SYMBOL_EXCEPTION 1
87 
88 /* basic types */
89 typedef char    gchar;
90 typedef short   gshort;
91 typedef int     gint;
92 typedef long    glong;
93 typedef float   gfloat;
94 typedef double  gdouble;
95 typedef void*   gpointer;
96 typedef gint    gboolean;
97 typedef signed char  gint8;
98 typedef signed short gint16;
99 typedef signed int   gint32;
100 typedef unsigned char  guchar;
101 typedef unsigned char  guint8;
102 typedef unsigned short gushort;
103 typedef unsigned short guint16;
104 typedef unsigned int   guint;
105 typedef unsigned int   guint32;
106 typedef unsigned int   gsize;
107 typedef unsigned long  gulong;
108 typedef signed long long   gint64;
109 typedef unsigned long long guint64;
110 typedef gulong GType;
111 
112 typedef struct _GList GList;
113 struct _GList
114 {
115   gpointer data;
116   GList *next;
117   GList *prev;
118 };
119 
120 typedef struct _GSList GSList;
121 struct _GSList {
122   gpointer data;
123   GSList *next;
124 };
125 
126 typedef enum {
127     BUTTON,                     /* GtkButton */
128     CHECK_BOX,                  /* GtkCheckButton */
129     CHECK_BOX_MENU_ITEM,        /* GtkCheckMenuItem */
130     COLOR_CHOOSER,              /* GtkColorSelectionDialog */
131     COMBO_BOX,                  /* GtkComboBox */
132     COMBO_BOX_ARROW_BUTTON,     /* GtkComboBoxEntry */
133     COMBO_BOX_TEXT_FIELD,       /* GtkComboBoxEntry */
134     DESKTOP_ICON,               /* GtkLabel */
135     DESKTOP_PANE,               /* GtkContainer */
136     EDITOR_PANE,                /* GtkTextView */
137     FORMATTED_TEXT_FIELD,       /* GtkEntry */
138     HANDLE_BOX,                 /* GtkHandleBox */
139     HPROGRESS_BAR,              /* GtkProgressBar */
140     HSCROLL_BAR,                /* GtkHScrollbar */
141     HSCROLL_BAR_BUTTON_LEFT,    /* GtkHScrollbar */
142     HSCROLL_BAR_BUTTON_RIGHT,   /* GtkHScrollbar */
143     HSCROLL_BAR_TRACK,          /* GtkHScrollbar */
144     HSCROLL_BAR_THUMB,          /* GtkHScrollbar */
145     HSEPARATOR,                 /* GtkHSeparator */
146     HSLIDER,                    /* GtkHScale */
147     HSLIDER_TRACK,              /* GtkHScale */
148     HSLIDER_THUMB,              /* GtkHScale */
149     HSPLIT_PANE_DIVIDER,        /* GtkHPaned */
150     INTERNAL_FRAME,             /* GtkWindow */
151     INTERNAL_FRAME_TITLE_PANE,  /* GtkLabel */
152     IMAGE,                      /* GtkImage */
153     LABEL,                      /* GtkLabel */
154     LIST,                       /* GtkTreeView */
155     MENU,                       /* GtkMenu */
156     MENU_BAR,                   /* GtkMenuBar */
157     MENU_ITEM,                  /* GtkMenuItem */
158     MENU_ITEM_ACCELERATOR,      /* GtkLabel */
159     OPTION_PANE,                /* GtkMessageDialog */
160     PANEL,                      /* GtkContainer */
161     PASSWORD_FIELD,             /* GtkEntry */
162     POPUP_MENU,                 /* GtkMenu */
163     POPUP_MENU_SEPARATOR,       /* GtkSeparatorMenuItem */
164     RADIO_BUTTON,               /* GtkRadioButton */
165     RADIO_BUTTON_MENU_ITEM,     /* GtkRadioMenuItem */
166     ROOT_PANE,                  /* GtkContainer */
167     SCROLL_PANE,                /* GtkScrolledWindow */
168     SPINNER,                    /* GtkSpinButton */
169     SPINNER_ARROW_BUTTON,       /* GtkSpinButton */
170     SPINNER_TEXT_FIELD,         /* GtkSpinButton */
171     SPLIT_PANE,                 /* GtkPaned */
172     TABBED_PANE,                /* GtkNotebook */
173     TABBED_PANE_TAB_AREA,       /* GtkNotebook */
174     TABBED_PANE_CONTENT,        /* GtkNotebook */
175     TABBED_PANE_TAB,            /* GtkNotebook */
176     TABLE,                      /* GtkTreeView */
177     TABLE_HEADER,               /* GtkButton */
178     TEXT_AREA,                  /* GtkTextView */
179     TEXT_FIELD,                 /* GtkEntry */
180     TEXT_PANE,                  /* GtkTextView */
181     TITLED_BORDER,              /* GtkFrame */
182     TOGGLE_BUTTON,              /* GtkToggleButton */
183     TOOL_BAR,                   /* GtkToolbar */
184     TOOL_BAR_DRAG_WINDOW,       /* GtkToolbar */
185     TOOL_BAR_SEPARATOR,         /* GtkSeparatorToolItem */
186     TOOL_TIP,                   /* GtkWindow */
187     TREE,                       /* GtkTreeView */
188     TREE_CELL,                  /* GtkTreeView */
189     VIEWPORT,                   /* GtkViewport */
190     VPROGRESS_BAR,              /* GtkProgressBar */
191     VSCROLL_BAR,                /* GtkVScrollbar */
192     VSCROLL_BAR_BUTTON_UP,      /* GtkVScrollbar */
193     VSCROLL_BAR_BUTTON_DOWN,    /* GtkVScrollbar */
194     VSCROLL_BAR_TRACK,          /* GtkVScrollbar */
195     VSCROLL_BAR_THUMB,          /* GtkVScrollbar */
196     VSEPARATOR,                 /* GtkVSeparator */
197     VSLIDER,                    /* GtkVScale */
198     VSLIDER_TRACK,              /* GtkVScale */
199     VSLIDER_THUMB,              /* GtkVScale */
200     VSPLIT_PANE_DIVIDER,        /* GtkVPaned */
201     WIDGET_TYPE_SIZE
202 } WidgetType;
203 
204 typedef enum
205 {
206     _GTK_ARROW_TYPE,
207     _GTK_BUTTON_TYPE,
208     _GTK_CHECK_BUTTON_TYPE,
209     _GTK_CHECK_MENU_ITEM_TYPE,
210     _GTK_COLOR_SELECTION_DIALOG_TYPE,
211     _GTK_COMBO_BOX_TYPE,
212     _GTK_COMBO_BOX_ARROW_BUTTON_TYPE,
213     _GTK_COMBO_BOX_TEXT_FIELD_TYPE,
214     _GTK_CONTAINER_TYPE,
215     _GTK_ENTRY_TYPE,
216     _GTK_FRAME_TYPE,
217     _GTK_HANDLE_BOX_TYPE,
218     _GTK_HPANED_TYPE,
219     _GTK_HPROGRESS_BAR_TYPE,
220     _GTK_HSCALE_TYPE,
221     _GTK_HSCROLLBAR_TYPE,
222     _GTK_HSEPARATOR_TYPE,
223     _GTK_IMAGE_TYPE,
224     _GTK_MENU_TYPE,
225     _GTK_MENU_BAR_TYPE,
226     _GTK_MENU_ITEM_TYPE,
227     _GTK_NOTEBOOK_TYPE,
228     _GTK_LABEL_TYPE,
229     _GTK_RADIO_BUTTON_TYPE,
230     _GTK_RADIO_MENU_ITEM_TYPE,
231     _GTK_SCROLLED_WINDOW_TYPE,
232     _GTK_SEPARATOR_MENU_ITEM_TYPE,
233     _GTK_SEPARATOR_TOOL_ITEM_TYPE,
234     _GTK_SPIN_BUTTON_TYPE,
235     _GTK_TEXT_VIEW_TYPE,
236     _GTK_TOGGLE_BUTTON_TYPE,
237     _GTK_TOOLBAR_TYPE,
238     _GTK_TOOLTIP_TYPE,
239     _GTK_TREE_VIEW_TYPE,
240     _GTK_VIEWPORT_TYPE,
241     _GTK_VPANED_TYPE,
242     _GTK_VPROGRESS_BAR_TYPE,
243     _GTK_VSCALE_TYPE,
244     _GTK_VSCROLLBAR_TYPE,
245     _GTK_VSEPARATOR_TYPE,
246     _GTK_WINDOW_TYPE,
247     _GTK_DIALOG_TYPE,
248     _GTK_WIDGET_TYPE_SIZE
249 } GtkWidgetType;
250 
251 typedef enum
252 {
253   GTK_STATE_NORMAL,
254   GTK_STATE_ACTIVE,
255   GTK_STATE_PRELIGHT,
256   GTK_STATE_SELECTED,
257   GTK_STATE_INSENSITIVE,
258   GTK_STATE_INCONSISTENT,
259   GTK_STATE_FOCUSED
260 } GtkStateType;
261 
262 typedef enum
263 {
264   GTK_SHADOW_NONE,
265   GTK_SHADOW_IN,
266   GTK_SHADOW_OUT,
267   GTK_SHADOW_ETCHED_IN,
268   GTK_SHADOW_ETCHED_OUT
269 } GtkShadowType;
270 
271 typedef enum
272 {
273   GTK_EXPANDER_COLLAPSED,
274   GTK_EXPANDER_SEMI_COLLAPSED,
275   GTK_EXPANDER_SEMI_EXPANDED,
276   GTK_EXPANDER_EXPANDED
277 } GtkExpanderStyle;
278 
279 typedef enum
280 {
281   GTK_ICON_SIZE_INVALID,
282   GTK_ICON_SIZE_MENU,
283   GTK_ICON_SIZE_SMALL_TOOLBAR,
284   GTK_ICON_SIZE_LARGE_TOOLBAR,
285   GTK_ICON_SIZE_BUTTON,
286   GTK_ICON_SIZE_DND,
287   GTK_ICON_SIZE_DIALOG
288 } GtkIconSize;
289 
290 typedef enum
291 {
292   GTK_ORIENTATION_HORIZONTAL,
293   GTK_ORIENTATION_VERTICAL
294 } GtkOrientation;
295 
296 typedef enum
297 {
298     FOREGROUND,
299     BACKGROUND,
300     TEXT_FOREGROUND,
301     TEXT_BACKGROUND,
302     FOCUS,
303     LIGHT,
304     DARK,
305     MID,
306     BLACK,
307     WHITE
308 } ColorType;
309 
310 typedef enum
311 {
312     GTK_FONT_NAME,
313     GTK_ICON_SIZES,
314     GTK_CURSOR_BLINK,
315     GTK_CURSOR_BLINK_TIME
316 } Setting;
317 
318 typedef enum
319 {
320   GTK_ARROW_UP,
321   GTK_ARROW_DOWN,
322   GTK_ARROW_LEFT,
323   GTK_ARROW_RIGHT,
324   GTK_ARROW_NONE
325 } GtkArrowType;
326 
327 typedef enum
328 {
329   GTK_TEXT_DIR_NONE,
330   GTK_TEXT_DIR_LTR,
331   GTK_TEXT_DIR_RTL
332 } GtkTextDirection;
333 
334 typedef enum
335 {
336   GTK_POS_LEFT,
337   GTK_POS_RIGHT,
338   GTK_POS_TOP,
339   GTK_POS_BOTTOM
340 } GtkPositionType;
341 
342 /* SynthConstants */
343 static const gint ENABLED    = 1 << 0;
344 static const gint MOUSE_OVER = 1 << 1;
345 static const gint PRESSED    = 1 << 2;
346 static const gint DISABLED   = 1 << 3;
347 static const gint FOCUSED    = 1 << 8;
348 static const gint SELECTED   = 1 << 9;
349 static const gint DEFAULT    = 1 << 10;
350 
351 typedef enum
352 {
353   GTK_ANY,
354   GTK_1,
355   GTK_2,
356   GTK_3
357 } GtkVersion;
358 
359 //------------------------------
360 
361 
362 
363 typedef enum {
364   GTK_RESPONSE_NONE = -1,
365   GTK_RESPONSE_REJECT = -2,
366   GTK_RESPONSE_ACCEPT = -3,
367   GTK_RESPONSE_DELETE_EVENT = -4,
368   GTK_RESPONSE_OK = -5,
369   GTK_RESPONSE_CANCEL = -6,
370   GTK_RESPONSE_CLOSE = -7,
371   GTK_RESPONSE_YES = -8,
372   GTK_RESPONSE_NO = -9,
373   GTK_RESPONSE_APPLY = -10,
374   GTK_RESPONSE_HELP = -11
375 } GtkResponseType;
376 
377 typedef enum {
378   GTK_FILE_CHOOSER_ACTION_OPEN,
379   GTK_FILE_CHOOSER_ACTION_SAVE,
380   GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER,
381   GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER
382 } GtkFileChooserAction;
383 
384 typedef enum {
385   GTK_FILE_FILTER_FILENAME = 1 << 0,
386   GTK_FILE_FILTER_URI = 1 << 1,
387   GTK_FILE_FILTER_DISPLAY_NAME = 1 << 2,
388   GTK_FILE_FILTER_MIME_TYPE = 1 << 3
389 } GtkFileFilterFlags;
390 
391 typedef enum {
392   GDK_COLORSPACE_RGB
393 } GdkColorspace;
394 
395 typedef enum {
396     GDK_INTERP_NEAREST,
397     GDK_INTERP_TILES,
398     GDK_INTERP_BILINEAR,
399     GDK_INTERP_HYPER
400 } GdkInterpType;
401 
402 typedef enum {
403   G_CONNECT_AFTER = 1 << 0, G_CONNECT_SWAPPED = 1 << 1
404 } GConnectFlags;
405 //------------------------------
406 
407 
408 typedef void GError;
409 typedef void GdkScreen;
410 typedef void GtkWindow;
411 typedef void GdkWindow;
412 typedef void GClosure;
413 typedef void GtkFileChooser;
414 typedef void GtkFileFilter;
415 typedef struct {
416     GtkFileFilterFlags contains;
417     const gchar *filename;
418     const gchar *uri;
419     const gchar *display_name;
420     const gchar *mime_type;
421 } GtkFileFilterInfo;
422 typedef gboolean (*GtkFileFilterFunc)(const GtkFileFilterInfo *filter_info,
423                                                                  gpointer data);
424 typedef void (*GClosureNotify)(gpointer data, GClosure *closure);
425 typedef void (*GDestroyNotify)(gpointer data);
426 typedef void (*GCallback)(void);
427 
428 
429 typedef struct GtkApi {
430     int version;
431     gboolean (*show_uri_load)(JNIEnv *env);
432     gboolean (*unload)();
433     void (*flush_event_loop)();
434     gchar* (*gtk_check_version)(guint required_major, guint required_minor,
435                                 guint required_micro);
436     jobject (*get_setting)(JNIEnv *env, Setting property);
437 
438     void (*paint_arrow)(WidgetType widget_type, GtkStateType state_type,
439         GtkShadowType shadow_type, const gchar *detail,
440         gint x, gint y, gint width, gint height,
441         GtkArrowType arrow_type, gboolean fill);
442     void (*paint_box)(WidgetType widget_type, GtkStateType state_type,
443                         GtkShadowType shadow_type, const gchar *detail,
444                         gint x, gint y, gint width, gint height,
445                         gint synth_state, GtkTextDirection dir);
446     void (*paint_box_gap)(WidgetType widget_type, GtkStateType state_type,
447             GtkShadowType shadow_type, const gchar *detail,
448             gint x, gint y, gint width, gint height,
449             GtkPositionType gap_side, gint gap_x, gint gap_width);
450     void (*paint_expander)(WidgetType widget_type, GtkStateType state_type,
451             const gchar *detail, gint x, gint y, gint width, gint height,
452             GtkExpanderStyle expander_style);
453     void (*paint_extension)(WidgetType widget_type, GtkStateType state_type,
454             GtkShadowType shadow_type, const gchar *detail,
455             gint x, gint y, gint width, gint height, GtkPositionType gap_side);
456     void (*paint_flat_box)(WidgetType widget_type, GtkStateType state_type,
457             GtkShadowType shadow_type, const gchar *detail,
458             gint x, gint y, gint width, gint height, gboolean has_focus);
459     void (*paint_focus)(WidgetType widget_type, GtkStateType state_type,
460             const char *detail, gint x, gint y, gint width, gint height);
461     void (*paint_handle)(WidgetType widget_type, GtkStateType state_type,
462            GtkShadowType shadow_type, const gchar *detail,
463            gint x, gint y, gint width, gint height, GtkOrientation orientation);
464     void (*paint_hline)(WidgetType widget_type, GtkStateType state_type,
465             const gchar *detail, gint x, gint y, gint width, gint height);
466     void (*paint_vline)(WidgetType widget_type, GtkStateType state_type,
467             const gchar *detail, gint x, gint y, gint width, gint height);
468     void (*paint_option)(WidgetType widget_type, gint synth_state,
469              const gchar *detail, gint x, gint y, gint width, gint height);
470     void (*paint_shadow)(WidgetType widget_type, GtkStateType state_type,
471                            GtkShadowType shadow_type, const gchar *detail,
472                            gint x, gint y, gint width, gint height,
473                            gint synth_state, GtkTextDirection dir);
474     void (*paint_slider)(WidgetType widget_type, GtkStateType state_type,
475             GtkShadowType shadow_type, const gchar *detail,
476             gint x, gint y, gint width, gint height, GtkOrientation orientation,
477             gboolean has_focus);
478     void (*paint_background)(WidgetType widget_type, GtkStateType state_type,
479             gint x, gint y, gint width, gint height);
480     void (*paint_check)(WidgetType widget_type, gint synth_state,
481         const gchar *detail, gint x, gint y, gint width, gint height);
482     void (*set_range_value)(WidgetType widget_type, jdouble value,
483                               jdouble min, jdouble max, jdouble visible);
484 
485     void (*init_painting)(JNIEnv *env, gint w, gint h);
486     gint (*copy_image)(gint *dest, gint width, gint height);
487 
488     gint (*get_xthickness)(JNIEnv *env, WidgetType widget_type);
489     gint (*get_ythickness)(JNIEnv *env, WidgetType widget_type);
490     gint (*get_color_for_state)(JNIEnv *env, WidgetType widget_type,
491                                   GtkStateType state_type, ColorType color_type);
492     jobject (*get_class_value)(JNIEnv *env, WidgetType widget_type,
493                                const char* key);
494 
495     jstring (*get_pango_font_name)(JNIEnv *env, WidgetType widget_type);
496     jboolean (*get_icon_data)(JNIEnv *env, gint widget_type,
497                     const gchar *stock_id, GtkIconSize size,
498                     GtkTextDirection direction, const char *detail,
499                     jmethodID icon_upcall_method, jobject this);
500     jboolean (*get_file_icon_data)(JNIEnv *env, const char *filename,
501                     GError **error, jmethodID icon_upcall_method, jobject this);
502     void (*gdk_threads_enter)(void);
503     void (*gdk_threads_leave)(void);
504     gboolean (*gtk_show_uri)(GdkScreen *screen, const gchar *uri,
505                                              guint32 timestamp, GError **error);
506     gboolean (*get_drawable_data)(JNIEnv *env, jintArray pixelArray,
507                                        jint x, jint y, jint width, jint height,
508                                        jint jwidth, int dx, int dy, jint scale);
509     void (*g_free)(gpointer mem);
510 
511 
512     gchar* (*gtk_file_chooser_get_filename)(GtkFileChooser *chooser);
513     void (*gtk_widget_hide)(void* widget);
514     void (*gtk_main_quit)(void);
515     void* (*gtk_file_chooser_dialog_new)(const gchar *title,
516         GtkWindow *parent, GtkFileChooserAction action,
517         const gchar *first_button_text, ...);
518     gboolean (*gtk_file_chooser_set_current_folder)(GtkFileChooser *chooser,
519         const gchar *filename);
520     gboolean (*gtk_file_chooser_set_filename)(GtkFileChooser *chooser,
521         const char *filename);
522     void (*gtk_file_chooser_set_current_name)(GtkFileChooser *chooser,
523         const gchar *name);
524     void (*gtk_file_filter_add_custom)(GtkFileFilter *filter,
525         GtkFileFilterFlags needed, GtkFileFilterFunc func, gpointer data,
526         GDestroyNotify notify);
527     void (*gtk_file_chooser_set_filter)(GtkFileChooser *chooser,
528         GtkFileFilter *filter);
529     GType (*gtk_file_chooser_get_type)(void);
530     GtkFileFilter* (*gtk_file_filter_new)(void);
531     void (*gtk_file_chooser_set_do_overwrite_confirmation)(
532         GtkFileChooser *chooser, gboolean do_overwrite_confirmation);
533     void (*gtk_file_chooser_set_select_multiple)(
534         GtkFileChooser *chooser, gboolean select_multiple);
535     gchar* (*gtk_file_chooser_get_current_folder)(GtkFileChooser *chooser);
536     GSList* (*gtk_file_chooser_get_filenames)(GtkFileChooser *chooser);
537     guint (*gtk_g_slist_length)(GSList *list);
538     gulong (*g_signal_connect_data)(gpointer instance,
539         const gchar *detailed_signal, GCallback c_handler, gpointer data,
540         GClosureNotify destroy_data, GConnectFlags connect_flags);
541     void (*gtk_widget_show)(void *widget);
542     void (*gtk_main)(void);
543     guint (*gtk_main_level)(void);
544     gchar* (*g_path_get_dirname) (const gchar *file_name);
545     XID (*gdk_x11_drawable_get_xid) (void *drawable);
546     void (*gtk_widget_destroy)(void *widget);
547     void (*gtk_window_present)(void *window);
548     void (*gtk_window_move)(void *window, gint x, gint y);
549     void (*gtk_window_resize)(void *window, gint width, gint height);
550     GdkWindow *(*get_window)(void *widget);
551 
552     void (*g_object_unref)(gpointer object);
553     GList* (*g_list_append) (GList *list, gpointer data);
554     void (*g_list_free) (GList *list);
555     void (*g_list_free_full) (GList *list, GDestroyNotify free_func);
556 } GtkApi;
557 
558 gboolean gtk_load(JNIEnv *env, GtkVersion version, gboolean verbose);
559 gboolean gtk_check_version(GtkVersion version);
560 
561 typedef struct _GThreadFunctions GThreadFunctions;
562 static gboolean (*fp_g_thread_get_initialized)(void);
563 static void (*fp_g_thread_init)(GThreadFunctions *vtable);
564 static void (*fp_gdk_threads_init)(void);
565 static void (*fp_gdk_threads_enter)(void);
566 static void (*fp_gdk_threads_leave)(void);
567 
568 extern GtkApi* gtk;
569 
570 #endif /* !_GTK_INTERFACE_H */
571