1 /*
   2  * Copyright (c) 2005, 2015, 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 #include <dlfcn.h>
  26 #include <setjmp.h>
  27 #include <X11/Xlib.h>
  28 #include <limits.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include "gtk2_interface.h"
  32 #include "java_awt_Transparency.h"
  33 #include "jvm_md.h"
  34 #include "sizecalc.h"
  35 #include <jni_util.h>
  36 #include "awt.h"
  37 
  38 #define GTK2_LIB_VERSIONED VERSIONED_JNI_LIB_NAME("gtk-x11-2.0", "0")
  39 #define GTK2_LIB JNI_LIB_NAME("gtk-x11-2.0")
  40 #define GTHREAD_LIB_VERSIONED VERSIONED_JNI_LIB_NAME("gthread-2.0", "0")
  41 #define GTHREAD_LIB JNI_LIB_NAME("gthread-2.0")
  42 
  43 #define G_TYPE_INVALID                  G_TYPE_MAKE_FUNDAMENTAL (0)
  44 #define G_TYPE_NONE                     G_TYPE_MAKE_FUNDAMENTAL (1)
  45 #define G_TYPE_INTERFACE                G_TYPE_MAKE_FUNDAMENTAL (2)
  46 #define G_TYPE_CHAR                     G_TYPE_MAKE_FUNDAMENTAL (3)
  47 #define G_TYPE_UCHAR                    G_TYPE_MAKE_FUNDAMENTAL (4)
  48 #define G_TYPE_BOOLEAN                  G_TYPE_MAKE_FUNDAMENTAL (5)
  49 #define G_TYPE_INT                      G_TYPE_MAKE_FUNDAMENTAL (6)
  50 #define G_TYPE_UINT                     G_TYPE_MAKE_FUNDAMENTAL (7)
  51 #define G_TYPE_LONG                     G_TYPE_MAKE_FUNDAMENTAL (8)
  52 #define G_TYPE_ULONG                    G_TYPE_MAKE_FUNDAMENTAL (9)
  53 #define G_TYPE_INT64                    G_TYPE_MAKE_FUNDAMENTAL (10)
  54 #define G_TYPE_UINT64                   G_TYPE_MAKE_FUNDAMENTAL (11)
  55 #define G_TYPE_ENUM                     G_TYPE_MAKE_FUNDAMENTAL (12)
  56 #define G_TYPE_FLAGS                    G_TYPE_MAKE_FUNDAMENTAL (13)
  57 #define G_TYPE_FLOAT                    G_TYPE_MAKE_FUNDAMENTAL (14)
  58 #define G_TYPE_DOUBLE                   G_TYPE_MAKE_FUNDAMENTAL (15)
  59 #define G_TYPE_STRING                   G_TYPE_MAKE_FUNDAMENTAL (16)
  60 #define G_TYPE_POINTER                  G_TYPE_MAKE_FUNDAMENTAL (17)
  61 #define G_TYPE_BOXED                    G_TYPE_MAKE_FUNDAMENTAL (18)
  62 #define G_TYPE_PARAM                    G_TYPE_MAKE_FUNDAMENTAL (19)
  63 #define G_TYPE_OBJECT                   G_TYPE_MAKE_FUNDAMENTAL (20)
  64 
  65 #define GTK_TYPE_BORDER                 ((*fp_gtk_border_get_type)())
  66 
  67 #define G_TYPE_FUNDAMENTAL_SHIFT        (2)
  68 #define G_TYPE_MAKE_FUNDAMENTAL(x)      ((GType) ((x) << G_TYPE_FUNDAMENTAL_SHIFT))
  69 #define MIN(a, b)  (((a) < (b)) ? (a) : (b))
  70 
  71 #define CONV_BUFFER_SIZE 128
  72 
  73 #define NO_SYMBOL_EXCEPTION 1
  74 
  75 /* SynthConstants */
  76 const gint ENABLED    = 1 << 0;
  77 const gint MOUSE_OVER = 1 << 1;
  78 const gint PRESSED    = 1 << 2;
  79 const gint DISABLED   = 1 << 3;
  80 const gint FOCUSED    = 1 << 8;
  81 const gint SELECTED   = 1 << 9;
  82 const gint DEFAULT    = 1 << 10;
  83 
  84 static void *gtk2_libhandle = NULL;
  85 static void *gthread_libhandle = NULL;
  86 
  87 static jmp_buf j;
  88 
  89 /* Widgets */
  90 static GtkWidget *gtk2_widget = NULL;
  91 static GtkWidget *gtk2_window = NULL;
  92 static GtkFixed  *gtk2_fixed  = NULL;
  93 
  94 /* Paint system */
  95 static GdkPixmap *gtk2_white_pixmap = NULL;
  96 static GdkPixmap *gtk2_black_pixmap = NULL;
  97 static GdkPixbuf *gtk2_white_pixbuf = NULL;
  98 static GdkPixbuf *gtk2_black_pixbuf = NULL;
  99 static int gtk2_pixbuf_width = 0;
 100 static int gtk2_pixbuf_height = 0;
 101 
 102 /* Static buffer for conversion from java.lang.String to UTF-8 */
 103 static char convertionBuffer[CONV_BUFFER_SIZE];
 104 
 105 static gboolean new_combo = TRUE;
 106 const char ENV_PREFIX[] = "GTK_MODULES=";
 107 
 108 /*******************/
 109 enum GtkWidgetType
 110 {
 111     _GTK_ARROW_TYPE,
 112     _GTK_BUTTON_TYPE,
 113     _GTK_CHECK_BUTTON_TYPE,
 114     _GTK_CHECK_MENU_ITEM_TYPE,
 115     _GTK_COLOR_SELECTION_DIALOG_TYPE,
 116     _GTK_COMBO_BOX_TYPE,
 117     _GTK_COMBO_BOX_ARROW_BUTTON_TYPE,
 118     _GTK_COMBO_BOX_TEXT_FIELD_TYPE,
 119     _GTK_CONTAINER_TYPE,
 120     _GTK_ENTRY_TYPE,
 121     _GTK_FRAME_TYPE,
 122     _GTK_HANDLE_BOX_TYPE,
 123     _GTK_HPANED_TYPE,
 124     _GTK_HPROGRESS_BAR_TYPE,
 125     _GTK_HSCALE_TYPE,
 126     _GTK_HSCROLLBAR_TYPE,
 127     _GTK_HSEPARATOR_TYPE,
 128     _GTK_IMAGE_TYPE,
 129     _GTK_MENU_TYPE,
 130     _GTK_MENU_BAR_TYPE,
 131     _GTK_MENU_ITEM_TYPE,
 132     _GTK_NOTEBOOK_TYPE,
 133     _GTK_LABEL_TYPE,
 134     _GTK_RADIO_BUTTON_TYPE,
 135     _GTK_RADIO_MENU_ITEM_TYPE,
 136     _GTK_SCROLLED_WINDOW_TYPE,
 137     _GTK_SEPARATOR_MENU_ITEM_TYPE,
 138     _GTK_SEPARATOR_TOOL_ITEM_TYPE,
 139     _GTK_SPIN_BUTTON_TYPE,
 140     _GTK_TEXT_VIEW_TYPE,
 141     _GTK_TOGGLE_BUTTON_TYPE,
 142     _GTK_TOOLBAR_TYPE,
 143     _GTK_TOOLTIP_TYPE,
 144     _GTK_TREE_VIEW_TYPE,
 145     _GTK_VIEWPORT_TYPE,
 146     _GTK_VPANED_TYPE,
 147     _GTK_VPROGRESS_BAR_TYPE,
 148     _GTK_VSCALE_TYPE,
 149     _GTK_VSCROLLBAR_TYPE,
 150     _GTK_VSEPARATOR_TYPE,
 151     _GTK_WINDOW_TYPE,
 152     _GTK_DIALOG_TYPE,
 153     _GTK_WIDGET_TYPE_SIZE
 154 };
 155 
 156 
 157 static GtkWidget *gtk2_widgets[_GTK_WIDGET_TYPE_SIZE];
 158 
 159 /*************************
 160  * Glib function pointers
 161  *************************/
 162 
 163 static gboolean (*fp_g_main_context_iteration)(GMainContext *context,
 164                                              gboolean may_block);
 165 
 166 static GValue*      (*fp_g_value_init)(GValue *value, GType g_type);
 167 static gboolean     (*fp_g_type_is_a)(GType type, GType is_a_type);
 168 static gboolean     (*fp_g_value_get_boolean)(const GValue *value);
 169 static gchar        (*fp_g_value_get_char)(const GValue *value);
 170 static guchar       (*fp_g_value_get_uchar)(const GValue *value);
 171 static gint         (*fp_g_value_get_int)(const GValue *value);
 172 static guint        (*fp_g_value_get_uint)(const GValue *value);
 173 static glong        (*fp_g_value_get_long)(const GValue *value);
 174 static gulong       (*fp_g_value_get_ulong)(const GValue *value);
 175 static gint64       (*fp_g_value_get_int64)(const GValue *value);
 176 static guint64      (*fp_g_value_get_uint64)(const GValue *value);
 177 static gfloat       (*fp_g_value_get_float)(const GValue *value);
 178 static gdouble      (*fp_g_value_get_double)(const GValue *value);
 179 static const gchar* (*fp_g_value_get_string)(const GValue *value);
 180 static gint         (*fp_g_value_get_enum)(const GValue *value);
 181 static guint        (*fp_g_value_get_flags)(const GValue *value);
 182 static GParamSpec*  (*fp_g_value_get_param)(const GValue *value);
 183 static gpointer*    (*fp_g_value_get_boxed)(const GValue *value);
 184 static gpointer*    (*fp_g_value_get_pointer)(const GValue *value);
 185 static GObject*     (*fp_g_value_get_object)(const GValue *value);
 186 static GParamSpec*  (*fp_g_param_spec_int)(const gchar *name,
 187         const gchar *nick, const gchar *blurb,
 188         gint minimum, gint maximum, gint default_value,
 189         GParamFlags flags);
 190 static void         (*fp_g_object_get)(gpointer object,
 191                                        const gchar* fpn, ...);
 192 static void         (*fp_g_object_set)(gpointer object,
 193                                        const gchar *first_property_name,
 194                                        ...);
 195 /************************
 196  * GDK function pointers
 197  ************************/
 198 static GdkPixmap *(*fp_gdk_pixmap_new)(GdkDrawable *drawable,
 199         gint width, gint height, gint depth);
 200 static GdkGC *(*fp_gdk_gc_new)(GdkDrawable*);
 201 static void (*fp_gdk_rgb_gc_set_foreground)(GdkGC*, guint32);
 202 static void (*fp_gdk_draw_rectangle)(GdkDrawable*, GdkGC*, gboolean,
 203         gint, gint, gint, gint);
 204 static GdkPixbuf *(*fp_gdk_pixbuf_new)(GdkColorspace colorspace,
 205         gboolean has_alpha, int bits_per_sample, int width, int height);
 206 static GdkPixbuf *(*fp_gdk_pixbuf_get_from_drawable)(GdkPixbuf *dest,
 207         GdkDrawable *src, GdkColormap *cmap, int src_x, int src_y,
 208         int dest_x, int dest_y, int width, int height);
 209 static void (*fp_gdk_drawable_get_size)(GdkDrawable *drawable,
 210         gint* width, gint* height);
 211 
 212 /************************
 213  * Gtk function pointers
 214  ************************/
 215 static gboolean (*fp_gtk_init_check)(int* argc, char** argv);
 216 
 217 /* Painting */
 218 static void (*fp_gtk_paint_hline)(GtkStyle* style, GdkWindow* window,
 219         GtkStateType state_type, GdkRectangle* area, GtkWidget* widget,
 220         const gchar* detail, gint x1, gint x2, gint y);
 221 static void (*fp_gtk_paint_vline)(GtkStyle* style, GdkWindow* window,
 222         GtkStateType state_type, GdkRectangle* area, GtkWidget* widget,
 223         const gchar* detail, gint y1, gint y2, gint x);
 224 static void (*fp_gtk_paint_shadow)(GtkStyle* style, GdkWindow* window,
 225         GtkStateType state_type, GtkShadowType shadow_type,
 226         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 227         gint x, gint y, gint width, gint height);
 228 static void (*fp_gtk_paint_arrow)(GtkStyle* style, GdkWindow* window,
 229         GtkStateType state_type, GtkShadowType shadow_type,
 230         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 231         GtkArrowType arrow_type, gboolean fill, gint x, gint y,
 232         gint width, gint height);
 233 static void (*fp_gtk_paint_diamond)(GtkStyle* style, GdkWindow* window,
 234         GtkStateType state_type, GtkShadowType shadow_type,
 235         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 236         gint x, gint y, gint width, gint height);
 237 static void (*fp_gtk_paint_box)(GtkStyle* style, GdkWindow* window,
 238         GtkStateType state_type, GtkShadowType shadow_type,
 239         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 240         gint x, gint y, gint width, gint height);
 241 static void (*fp_gtk_paint_flat_box)(GtkStyle* style, GdkWindow* window,
 242         GtkStateType state_type, GtkShadowType shadow_type,
 243         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 244         gint x, gint y, gint width, gint height);
 245 static void (*fp_gtk_paint_check)(GtkStyle* style, GdkWindow* window,
 246         GtkStateType state_type, GtkShadowType shadow_type,
 247         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 248         gint x, gint y, gint width, gint height);
 249 static void (*fp_gtk_paint_option)(GtkStyle* style, GdkWindow* window,
 250         GtkStateType state_type, GtkShadowType shadow_type,
 251         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 252         gint x, gint y, gint width, gint height);
 253 static void (*fp_gtk_paint_box_gap)(GtkStyle* style, GdkWindow* window,
 254         GtkStateType state_type, GtkShadowType shadow_type,
 255         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 256         gint x, gint y, gint width, gint height,
 257         GtkPositionType gap_side, gint gap_x, gint gap_width);
 258 static void (*fp_gtk_paint_extension)(GtkStyle* style, GdkWindow* window,
 259         GtkStateType state_type, GtkShadowType shadow_type,
 260         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 261         gint x, gint y, gint width, gint height, GtkPositionType gap_side);
 262 static void (*fp_gtk_paint_focus)(GtkStyle* style, GdkWindow* window,
 263         GtkStateType state_type, GdkRectangle* area, GtkWidget* widget,
 264         const gchar* detail, gint x, gint y, gint width, gint height);
 265 static void (*fp_gtk_paint_slider)(GtkStyle* style, GdkWindow* window,
 266         GtkStateType state_type, GtkShadowType shadow_type,
 267         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 268         gint x, gint y, gint width, gint height, GtkOrientation orientation);
 269 static void (*fp_gtk_paint_handle)(GtkStyle* style, GdkWindow* window,
 270         GtkStateType state_type, GtkShadowType shadow_type,
 271         GdkRectangle* area, GtkWidget* widget, const gchar* detail,
 272         gint x, gint y, gint width, gint height, GtkOrientation orientation);
 273 static void (*fp_gtk_paint_expander)(GtkStyle* style, GdkWindow* window,
 274         GtkStateType state_type, GdkRectangle* area, GtkWidget* widget,
 275         const gchar* detail, gint x, gint y, GtkExpanderStyle expander_style);
 276 static void (*fp_gtk_style_apply_default_background)(GtkStyle* style,
 277         GdkWindow* window, gboolean set_bg, GtkStateType state_type,
 278         GdkRectangle* area, gint x, gint y, gint width, gint height);
 279 
 280 /* Widget creation */
 281 static GtkWidget* (*fp_gtk_arrow_new)(GtkArrowType arrow_type,
 282                                       GtkShadowType shadow_type);
 283 static GtkWidget* (*fp_gtk_button_new)();
 284 static GtkWidget* (*fp_gtk_check_button_new)();
 285 static GtkWidget* (*fp_gtk_check_menu_item_new)();
 286 static GtkWidget* (*fp_gtk_color_selection_dialog_new)(const gchar* title);
 287 static GtkWidget* (*fp_gtk_combo_box_new)();
 288 static GtkWidget* (*fp_gtk_combo_box_entry_new)();
 289 static GtkWidget* (*fp_gtk_entry_new)();
 290 static GtkWidget* (*fp_gtk_fixed_new)();
 291 static GtkWidget* (*fp_gtk_handle_box_new)();
 292 static GtkWidget* (*fp_gtk_hpaned_new)();
 293 static GtkWidget* (*fp_gtk_vpaned_new)();
 294 static GtkWidget* (*fp_gtk_hscale_new)(GtkAdjustment* adjustment);
 295 static GtkWidget* (*fp_gtk_vscale_new)(GtkAdjustment* adjustment);
 296 static GtkWidget* (*fp_gtk_hscrollbar_new)(GtkAdjustment* adjustment);
 297 static GtkWidget* (*fp_gtk_vscrollbar_new)(GtkAdjustment* adjustment);
 298 static GtkWidget* (*fp_gtk_hseparator_new)();
 299 static GtkWidget* (*fp_gtk_vseparator_new)();
 300 static GtkWidget* (*fp_gtk_image_new)();
 301 static GtkWidget* (*fp_gtk_label_new)(const gchar* str);
 302 static GtkWidget* (*fp_gtk_menu_new)();
 303 static GtkWidget* (*fp_gtk_menu_bar_new)();
 304 static GtkWidget* (*fp_gtk_menu_item_new)();
 305 static GtkWidget* (*fp_gtk_notebook_new)();
 306 static GtkWidget* (*fp_gtk_progress_bar_new)();
 307 static GtkWidget* (*fp_gtk_progress_bar_set_orientation)(
 308         GtkProgressBar *pbar,
 309         GtkProgressBarOrientation orientation);
 310 static GtkWidget* (*fp_gtk_radio_button_new)(GSList *group);
 311 static GtkWidget* (*fp_gtk_radio_menu_item_new)(GSList *group);
 312 static GtkWidget* (*fp_gtk_scrolled_window_new)(GtkAdjustment *hadjustment,
 313         GtkAdjustment *vadjustment);
 314 static GtkWidget* (*fp_gtk_separator_menu_item_new)();
 315 static GtkWidget* (*fp_gtk_separator_tool_item_new)();
 316 static GtkWidget* (*fp_gtk_text_view_new)();
 317 static GtkWidget* (*fp_gtk_toggle_button_new)();
 318 static GtkWidget* (*fp_gtk_toolbar_new)();
 319 static GtkWidget* (*fp_gtk_tree_view_new)();
 320 static GtkWidget* (*fp_gtk_viewport_new)(GtkAdjustment *hadjustment,
 321         GtkAdjustment *vadjustment);
 322 static GtkWidget* (*fp_gtk_window_new)(GtkWindowType type);
 323 static GtkWidget* (*fp_gtk_dialog_new)();
 324 static GtkWidget* (*fp_gtk_spin_button_new)(GtkAdjustment *adjustment,
 325         gdouble climb_rate, guint digits);
 326 static GtkWidget* (*fp_gtk_frame_new)(const gchar *label);
 327 
 328 /* Other widget operations */
 329 static GtkObject* (*fp_gtk_adjustment_new)(gdouble value,
 330         gdouble lower, gdouble upper, gdouble step_increment,
 331         gdouble page_increment, gdouble page_size);
 332 static void (*fp_gtk_container_add)(GtkContainer *window, GtkWidget *widget);
 333 static void (*fp_gtk_menu_shell_append)(GtkMenuShell *menu_shell,
 334         GtkWidget *child);
 335 static void (*fp_gtk_menu_item_set_submenu)(GtkMenuItem *menu_item,
 336         GtkWidget *submenu);
 337 static void (*fp_gtk_widget_realize)(GtkWidget *widget);
 338 static GdkPixbuf* (*fp_gtk_widget_render_icon)(GtkWidget *widget,
 339         const gchar *stock_id, GtkIconSize size, const gchar *detail);
 340 static void (*fp_gtk_widget_set_name)(GtkWidget *widget, const gchar *name);
 341 static void (*fp_gtk_widget_set_parent)(GtkWidget *widget, GtkWidget *parent);
 342 static void (*fp_gtk_widget_set_direction)(GtkWidget *widget,
 343         GtkTextDirection direction);
 344 static void (*fp_gtk_widget_style_get)(GtkWidget *widget,
 345         const gchar *first_property_name, ...);
 346 static void (*fp_gtk_widget_class_install_style_property)(
 347         GtkWidgetClass* class, GParamSpec *pspec);
 348 static GParamSpec* (*fp_gtk_widget_class_find_style_property)(
 349         GtkWidgetClass* class, const gchar* property_name);
 350 static void (*fp_gtk_widget_style_get_property)(GtkWidget* widget,
 351         const gchar* property_name, GValue* value);
 352 static char* (*fp_pango_font_description_to_string)(
 353         const PangoFontDescription* fd);
 354 static GtkSettings* (*fp_gtk_settings_get_default)();
 355 static GtkSettings* (*fp_gtk_widget_get_settings)(GtkWidget *widget);
 356 static GType        (*fp_gtk_border_get_type)();
 357 static void (*fp_gtk_arrow_set)(GtkWidget* arrow,
 358                                 GtkArrowType arrow_type,
 359                                 GtkShadowType shadow_type);
 360 static void (*fp_gtk_widget_size_request)(GtkWidget *widget,
 361                                           GtkRequisition *requisition);
 362 static GtkAdjustment* (*fp_gtk_range_get_adjustment)(GtkRange* range);
 363 
 364 /* Method bodies */
 365 const char *getStrFor(JNIEnv *env, jstring val)
 366 {
 367     int length = (*env)->GetStringLength(env, val);
 368     if (length > CONV_BUFFER_SIZE-1)
 369     {
 370         length = CONV_BUFFER_SIZE-1;
 371 #ifdef DEBUG
 372         fprintf(stderr, "Note: Detail is too long: %d chars\n", length);
 373 #endif /* DEBUG */
 374     }
 375 
 376     (*env)->GetStringUTFRegion(env, val, 0, length, convertionBuffer);
 377     return convertionBuffer;
 378 }
 379 
 380 static void throw_exception(JNIEnv *env, const char* name, const char* message)
 381 {
 382     jclass class = (*env)->FindClass(env, name);
 383 
 384     if (class != NULL)
 385         (*env)->ThrowNew(env, class, message);
 386 
 387     (*env)->DeleteLocalRef(env, class);
 388 }
 389 
 390 /* This is a workaround for the bug:
 391  * http://sourceware.org/bugzilla/show_bug.cgi?id=1814
 392  * (dlsym/dlopen clears dlerror state)
 393  * This bug is specific to Linux, but there is no harm in
 394  * applying this workaround on Solaris as well.
 395  */
 396 static void* dl_symbol(const char* name)
 397 {
 398     void* result = dlsym(gtk2_libhandle, name);
 399     if (!result)
 400         longjmp(j, NO_SYMBOL_EXCEPTION);
 401 
 402     return result;
 403 }
 404 
 405 static void* dl_symbol_gthread(const char* name)
 406 {
 407     void* result = dlsym(gthread_libhandle, name);
 408     if (!result)
 409         longjmp(j, NO_SYMBOL_EXCEPTION);
 410 
 411     return result;
 412 }
 413 
 414 gboolean gtk2_check_version()
 415 {
 416     if (gtk2_libhandle != NULL) {
 417         /* We've already successfully opened the GTK libs, so return true. */
 418         return TRUE;
 419     } else {
 420         void *lib = NULL;
 421         gboolean result = FALSE;
 422 
 423         lib = dlopen(GTK2_LIB_VERSIONED, RTLD_LAZY | RTLD_LOCAL);
 424         if (lib == NULL) {
 425             lib = dlopen(GTK2_LIB, RTLD_LAZY | RTLD_LOCAL);
 426             if (lib == NULL) {
 427                 return FALSE;
 428             }
 429         }
 430 
 431         fp_gtk_check_version = dlsym(lib, "gtk_check_version");
 432         /* Check for GTK 2.2+ */
 433         if (!fp_gtk_check_version(2, 2, 0)) {
 434             result = TRUE;
 435         }
 436 
 437         // 8048289: workaround for https://bugzilla.gnome.org/show_bug.cgi?id=733065
 438         // dlclose(lib);
 439 
 440         return result;
 441     }
 442 }
 443 
 444 #define ADD_SUPPORTED_ACTION(actionStr) \
 445 do { \
 446     jfieldID fld_action = (*env)->GetStaticFieldID(env, cls_action, actionStr, "Ljava/awt/Desktop$Action;"); \
 447     if (!(*env)->ExceptionCheck(env)) { \
 448         jobject action = (*env)->GetStaticObjectField(env, cls_action, fld_action); \
 449         (*env)->CallBooleanMethod(env, supportedActions, mid_arrayListAdd, action); \
 450     } else { \
 451         (*env)->ExceptionClear(env); \
 452     } \
 453 } while(0);
 454 
 455 
 456 void update_supported_actions(JNIEnv *env) {
 457     GVfs * (*fp_g_vfs_get_default) (void);
 458     const gchar * const * (*fp_g_vfs_get_supported_uri_schemes) (GVfs * vfs);
 459     const gchar * const * schemes = NULL;
 460 
 461     jclass cls_action = (*env)->FindClass(env, "java/awt/Desktop$Action");
 462     CHECK_NULL(cls_action);
 463     jclass cls_xDesktopPeer = (*env)->FindClass(env, "sun/awt/X11/XDesktopPeer");
 464     CHECK_NULL(cls_xDesktopPeer);
 465     jfieldID fld_supportedActions = (*env)->GetStaticFieldID(env, cls_xDesktopPeer, "supportedActions", "Ljava/util/List;");
 466     CHECK_NULL(fld_supportedActions);
 467     jobject supportedActions = (*env)->GetStaticObjectField(env, cls_xDesktopPeer, fld_supportedActions);
 468 
 469     jclass cls_arrayList = (*env)->FindClass(env, "java/util/ArrayList");
 470     CHECK_NULL(cls_arrayList);
 471     jmethodID mid_arrayListAdd = (*env)->GetMethodID(env, cls_arrayList, "add", "(Ljava/lang/Object;)Z");
 472     CHECK_NULL(mid_arrayListAdd);
 473     jmethodID mid_arrayListClear = (*env)->GetMethodID(env, cls_arrayList, "clear", "()V");
 474     CHECK_NULL(mid_arrayListClear);
 475 
 476     (*env)->CallVoidMethod(env, supportedActions, mid_arrayListClear);
 477 
 478     ADD_SUPPORTED_ACTION("OPEN");
 479 
 480     /**
 481      * gtk_show_uri() documentation says:
 482      *
 483      * > you need to install gvfs to get support for uri schemes such as http://
 484      * > or ftp://, as only local files are handled by GIO itself.
 485      *
 486      * So OPEN action was safely added here.
 487      * However, it looks like Solaris 11 have gvfs support only for 32-bit
 488      * applications only by default.
 489      */
 490 
 491     fp_g_vfs_get_default = dl_symbol("g_vfs_get_default");
 492     fp_g_vfs_get_supported_uri_schemes = dl_symbol("g_vfs_get_supported_uri_schemes");
 493     dlerror();
 494 
 495     if (fp_g_vfs_get_default && fp_g_vfs_get_supported_uri_schemes) {
 496         GVfs * vfs = fp_g_vfs_get_default();
 497         schemes = vfs ? fp_g_vfs_get_supported_uri_schemes(vfs) : NULL;
 498         if (schemes) {
 499             int i = 0;
 500             while (schemes[i]) {
 501                 if (strcmp(schemes[i], "http") == 0) {
 502                     ADD_SUPPORTED_ACTION("BROWSE");
 503                     ADD_SUPPORTED_ACTION("MAIL");
 504                     break;
 505                 }
 506                 i++;
 507             }
 508         }
 509     } else {
 510 #ifdef DEBUG
 511         fprintf(stderr, "Cannot load g_vfs_get_supported_uri_schemes\n");
 512 #endif /* DEBUG */
 513     }
 514 
 515 }
 516 /**
 517  * Functions for awt_Desktop.c
 518  */
 519 gboolean gtk2_show_uri_load(JNIEnv *env) {
 520      gboolean success = FALSE;
 521      dlerror();
 522      const char *gtk_version = fp_gtk_check_version(2, 14, 0);
 523      if (gtk_version != NULL) {
 524          // The gtk_show_uri is available from GTK+ 2.14
 525 #ifdef DEBUG
 526          fprintf (stderr, "The version of GTK is %s. "
 527              "The gtk_show_uri function is supported "
 528              "since GTK+ 2.14.\n", gtk_version);
 529 #endif /* DEBUG */
 530      } else {
 531          // Loading symbols only if the GTK version is 2.14 and higher
 532          fp_gtk_show_uri = dl_symbol("gtk_show_uri");
 533          const char *dlsym_error = dlerror();
 534          if (dlsym_error) {
 535 #ifdef DEBUG
 536              fprintf (stderr, "Cannot load symbol: %s \n", dlsym_error);
 537 #endif /* DEBUG */
 538          } else if (fp_gtk_show_uri == NULL) {
 539 #ifdef DEBUG
 540              fprintf(stderr, "dlsym(gtk_show_uri) returned NULL\n");
 541 #endif /* DEBUG */
 542         } else {
 543             update_supported_actions(env);
 544             success = TRUE;
 545         }
 546      }
 547      return success;
 548 }
 549 
 550 /**
 551  * Functions for sun_awt_X11_GtkFileDialogPeer.c
 552  */
 553 void gtk2_file_chooser_load()
 554 {
 555     fp_gtk_file_chooser_get_filename = dl_symbol(
 556             "gtk_file_chooser_get_filename");
 557     fp_gtk_file_chooser_dialog_new = dl_symbol("gtk_file_chooser_dialog_new");
 558     fp_gtk_file_chooser_set_current_folder = dl_symbol(
 559             "gtk_file_chooser_set_current_folder");
 560     fp_gtk_file_chooser_set_filename = dl_symbol(
 561             "gtk_file_chooser_set_filename");
 562     fp_gtk_file_chooser_set_current_name = dl_symbol(
 563             "gtk_file_chooser_set_current_name");
 564     fp_gtk_file_filter_add_custom = dl_symbol("gtk_file_filter_add_custom");
 565     fp_gtk_file_chooser_set_filter = dl_symbol("gtk_file_chooser_set_filter");
 566     fp_gtk_file_chooser_get_type = dl_symbol("gtk_file_chooser_get_type");
 567     fp_gtk_file_filter_new = dl_symbol("gtk_file_filter_new");
 568     if (fp_gtk_check_version(2, 8, 0) == NULL) {
 569         fp_gtk_file_chooser_set_do_overwrite_confirmation = dl_symbol(
 570                 "gtk_file_chooser_set_do_overwrite_confirmation");
 571     }
 572     fp_gtk_file_chooser_set_select_multiple = dl_symbol(
 573             "gtk_file_chooser_set_select_multiple");
 574     fp_gtk_file_chooser_get_current_folder = dl_symbol(
 575             "gtk_file_chooser_get_current_folder");
 576     fp_gtk_file_chooser_get_filenames = dl_symbol(
 577             "gtk_file_chooser_get_filenames");
 578     fp_gtk_g_slist_length = dl_symbol("g_slist_length");
 579     fp_gdk_x11_drawable_get_xid = dl_symbol("gdk_x11_drawable_get_xid");
 580 }
 581 
 582 gboolean gtk2_load(JNIEnv *env)
 583 {
 584     gboolean result;
 585     int i;
 586     int (*handler)();
 587     int (*io_handler)();
 588     char *gtk_modules_env;
 589 
 590     gtk2_libhandle = dlopen(GTK2_LIB_VERSIONED, RTLD_LAZY | RTLD_LOCAL);
 591     if (gtk2_libhandle == NULL) {
 592         gtk2_libhandle = dlopen(GTK2_LIB, RTLD_LAZY | RTLD_LOCAL);
 593         if (gtk2_libhandle == NULL)
 594             return FALSE;
 595     }
 596 
 597     gthread_libhandle = dlopen(GTHREAD_LIB_VERSIONED, RTLD_LAZY | RTLD_LOCAL);
 598     if (gthread_libhandle == NULL) {
 599         gthread_libhandle = dlopen(GTHREAD_LIB, RTLD_LAZY | RTLD_LOCAL);
 600         if (gthread_libhandle == NULL)
 601             return FALSE;
 602     }
 603 
 604     if (setjmp(j) == 0)
 605     {
 606         fp_gtk_check_version = dl_symbol("gtk_check_version");
 607         /* Check for GTK 2.2+ */
 608         if (fp_gtk_check_version(2, 2, 0)) {
 609             longjmp(j, NO_SYMBOL_EXCEPTION);
 610         }
 611 
 612         /* GLib */
 613         fp_glib_check_version = dlsym(gtk2_libhandle, "glib_check_version");
 614         if (!fp_glib_check_version) {
 615             dlerror();
 616         }
 617         fp_g_free = dl_symbol("g_free");
 618         fp_g_object_unref = dl_symbol("g_object_unref");
 619 
 620         fp_g_main_context_iteration =
 621             dl_symbol("g_main_context_iteration");
 622 
 623         fp_g_value_init = dl_symbol("g_value_init");
 624         fp_g_type_is_a = dl_symbol("g_type_is_a");
 625 
 626         fp_g_value_get_boolean = dl_symbol("g_value_get_boolean");
 627         fp_g_value_get_char = dl_symbol("g_value_get_char");
 628         fp_g_value_get_uchar = dl_symbol("g_value_get_uchar");
 629         fp_g_value_get_int = dl_symbol("g_value_get_int");
 630         fp_g_value_get_uint = dl_symbol("g_value_get_uint");
 631         fp_g_value_get_long = dl_symbol("g_value_get_long");
 632         fp_g_value_get_ulong = dl_symbol("g_value_get_ulong");
 633         fp_g_value_get_int64 = dl_symbol("g_value_get_int64");
 634         fp_g_value_get_uint64 = dl_symbol("g_value_get_uint64");
 635         fp_g_value_get_float = dl_symbol("g_value_get_float");
 636         fp_g_value_get_double = dl_symbol("g_value_get_double");
 637         fp_g_value_get_string = dl_symbol("g_value_get_string");
 638         fp_g_value_get_enum = dl_symbol("g_value_get_enum");
 639         fp_g_value_get_flags = dl_symbol("g_value_get_flags");
 640         fp_g_value_get_param = dl_symbol("g_value_get_param");
 641         fp_g_value_get_boxed = dl_symbol("g_value_get_boxed");
 642         fp_g_value_get_pointer = dl_symbol("g_value_get_pointer");
 643         fp_g_value_get_object = dl_symbol("g_value_get_object");
 644         fp_g_param_spec_int = dl_symbol("g_param_spec_int");
 645         fp_g_object_get = dl_symbol("g_object_get");
 646         fp_g_object_set = dl_symbol("g_object_set");
 647 
 648         /* GDK */
 649         fp_gdk_pixmap_new = dl_symbol("gdk_pixmap_new");
 650         fp_gdk_pixbuf_get_from_drawable =
 651             dl_symbol("gdk_pixbuf_get_from_drawable");
 652         fp_gdk_gc_new = dl_symbol("gdk_gc_new");
 653         fp_gdk_rgb_gc_set_foreground =
 654             dl_symbol("gdk_rgb_gc_set_foreground");
 655         fp_gdk_draw_rectangle = dl_symbol("gdk_draw_rectangle");
 656         fp_gdk_drawable_get_size = dl_symbol("gdk_drawable_get_size");
 657 
 658         /* Pixbuf */
 659         fp_gdk_pixbuf_new = dl_symbol("gdk_pixbuf_new");
 660         fp_gdk_pixbuf_new_from_file =
 661                 dl_symbol("gdk_pixbuf_new_from_file");
 662         fp_gdk_pixbuf_get_width = dl_symbol("gdk_pixbuf_get_width");
 663         fp_gdk_pixbuf_get_height = dl_symbol("gdk_pixbuf_get_height");
 664         fp_gdk_pixbuf_get_pixels = dl_symbol("gdk_pixbuf_get_pixels");
 665         fp_gdk_pixbuf_get_rowstride =
 666                 dl_symbol("gdk_pixbuf_get_rowstride");
 667         fp_gdk_pixbuf_get_has_alpha =
 668                 dl_symbol("gdk_pixbuf_get_has_alpha");
 669         fp_gdk_pixbuf_get_bits_per_sample =
 670                 dl_symbol("gdk_pixbuf_get_bits_per_sample");
 671         fp_gdk_pixbuf_get_n_channels =
 672                 dl_symbol("gdk_pixbuf_get_n_channels");
 673 
 674         /* GTK painting */
 675         fp_gtk_init_check = dl_symbol("gtk_init_check");
 676         fp_gtk_paint_hline = dl_symbol("gtk_paint_hline");
 677         fp_gtk_paint_vline = dl_symbol("gtk_paint_vline");
 678         fp_gtk_paint_shadow = dl_symbol("gtk_paint_shadow");
 679         fp_gtk_paint_arrow = dl_symbol("gtk_paint_arrow");
 680         fp_gtk_paint_diamond = dl_symbol("gtk_paint_diamond");
 681         fp_gtk_paint_box = dl_symbol("gtk_paint_box");
 682         fp_gtk_paint_flat_box = dl_symbol("gtk_paint_flat_box");
 683         fp_gtk_paint_check = dl_symbol("gtk_paint_check");
 684         fp_gtk_paint_option = dl_symbol("gtk_paint_option");
 685         fp_gtk_paint_box_gap = dl_symbol("gtk_paint_box_gap");
 686         fp_gtk_paint_extension = dl_symbol("gtk_paint_extension");
 687         fp_gtk_paint_focus = dl_symbol("gtk_paint_focus");
 688         fp_gtk_paint_slider = dl_symbol("gtk_paint_slider");
 689         fp_gtk_paint_handle = dl_symbol("gtk_paint_handle");
 690         fp_gtk_paint_expander = dl_symbol("gtk_paint_expander");
 691         fp_gtk_style_apply_default_background =
 692                 dl_symbol("gtk_style_apply_default_background");
 693 
 694         /* GTK widgets */
 695         fp_gtk_arrow_new = dl_symbol("gtk_arrow_new");
 696         fp_gtk_button_new = dl_symbol("gtk_button_new");
 697         fp_gtk_spin_button_new = dl_symbol("gtk_spin_button_new");
 698         fp_gtk_check_button_new = dl_symbol("gtk_check_button_new");
 699         fp_gtk_check_menu_item_new =
 700                 dl_symbol("gtk_check_menu_item_new");
 701         fp_gtk_color_selection_dialog_new =
 702                 dl_symbol("gtk_color_selection_dialog_new");
 703         fp_gtk_entry_new = dl_symbol("gtk_entry_new");
 704         fp_gtk_fixed_new = dl_symbol("gtk_fixed_new");
 705         fp_gtk_handle_box_new = dl_symbol("gtk_handle_box_new");
 706         fp_gtk_image_new = dl_symbol("gtk_image_new");
 707         fp_gtk_hpaned_new = dl_symbol("gtk_hpaned_new");
 708         fp_gtk_vpaned_new = dl_symbol("gtk_vpaned_new");
 709         fp_gtk_hscale_new = dl_symbol("gtk_hscale_new");
 710         fp_gtk_vscale_new = dl_symbol("gtk_vscale_new");
 711         fp_gtk_hscrollbar_new = dl_symbol("gtk_hscrollbar_new");
 712         fp_gtk_vscrollbar_new = dl_symbol("gtk_vscrollbar_new");
 713         fp_gtk_hseparator_new = dl_symbol("gtk_hseparator_new");
 714         fp_gtk_vseparator_new = dl_symbol("gtk_vseparator_new");
 715         fp_gtk_label_new = dl_symbol("gtk_label_new");
 716         fp_gtk_menu_new = dl_symbol("gtk_menu_new");
 717         fp_gtk_menu_bar_new = dl_symbol("gtk_menu_bar_new");
 718         fp_gtk_menu_item_new = dl_symbol("gtk_menu_item_new");
 719         fp_gtk_menu_item_set_submenu =
 720                 dl_symbol("gtk_menu_item_set_submenu");
 721         fp_gtk_notebook_new = dl_symbol("gtk_notebook_new");
 722         fp_gtk_progress_bar_new =
 723             dl_symbol("gtk_progress_bar_new");
 724         fp_gtk_progress_bar_set_orientation =
 725             dl_symbol("gtk_progress_bar_set_orientation");
 726         fp_gtk_radio_button_new =
 727             dl_symbol("gtk_radio_button_new");
 728         fp_gtk_radio_menu_item_new =
 729             dl_symbol("gtk_radio_menu_item_new");
 730         fp_gtk_scrolled_window_new =
 731             dl_symbol("gtk_scrolled_window_new");
 732         fp_gtk_separator_menu_item_new =
 733             dl_symbol("gtk_separator_menu_item_new");
 734         fp_gtk_text_view_new = dl_symbol("gtk_text_view_new");
 735         fp_gtk_toggle_button_new =
 736             dl_symbol("gtk_toggle_button_new");
 737         fp_gtk_toolbar_new = dl_symbol("gtk_toolbar_new");
 738         fp_gtk_tree_view_new = dl_symbol("gtk_tree_view_new");
 739         fp_gtk_viewport_new = dl_symbol("gtk_viewport_new");
 740         fp_gtk_window_new = dl_symbol("gtk_window_new");
 741         fp_gtk_window_present = dl_symbol("gtk_window_present");
 742         fp_gtk_window_move = dl_symbol("gtk_window_move");
 743         fp_gtk_window_resize = dl_symbol("gtk_window_resize");
 744 
 745           fp_gtk_dialog_new = dl_symbol("gtk_dialog_new");
 746         fp_gtk_frame_new = dl_symbol("gtk_frame_new");
 747 
 748         fp_gtk_adjustment_new = dl_symbol("gtk_adjustment_new");
 749         fp_gtk_container_add = dl_symbol("gtk_container_add");
 750         fp_gtk_menu_shell_append =
 751             dl_symbol("gtk_menu_shell_append");
 752         fp_gtk_widget_realize = dl_symbol("gtk_widget_realize");
 753         fp_gtk_widget_destroy = dl_symbol("gtk_widget_destroy");
 754         fp_gtk_widget_render_icon =
 755             dl_symbol("gtk_widget_render_icon");
 756         fp_gtk_widget_set_name =
 757             dl_symbol("gtk_widget_set_name");
 758         fp_gtk_widget_set_parent =
 759             dl_symbol("gtk_widget_set_parent");
 760         fp_gtk_widget_set_direction =
 761             dl_symbol("gtk_widget_set_direction");
 762         fp_gtk_widget_style_get =
 763             dl_symbol("gtk_widget_style_get");
 764         fp_gtk_widget_class_install_style_property =
 765             dl_symbol("gtk_widget_class_install_style_property");
 766         fp_gtk_widget_class_find_style_property =
 767             dl_symbol("gtk_widget_class_find_style_property");
 768         fp_gtk_widget_style_get_property =
 769             dl_symbol("gtk_widget_style_get_property");
 770         fp_pango_font_description_to_string =
 771             dl_symbol("pango_font_description_to_string");
 772         fp_gtk_settings_get_default =
 773             dl_symbol("gtk_settings_get_default");
 774         fp_gtk_widget_get_settings =
 775             dl_symbol("gtk_widget_get_settings");
 776         fp_gtk_border_get_type =  dl_symbol("gtk_border_get_type");
 777         fp_gtk_arrow_set = dl_symbol("gtk_arrow_set");
 778         fp_gtk_widget_size_request =
 779             dl_symbol("gtk_widget_size_request");
 780         fp_gtk_range_get_adjustment =
 781             dl_symbol("gtk_range_get_adjustment");
 782 
 783         fp_gtk_widget_hide = dl_symbol("gtk_widget_hide");
 784         fp_gtk_main_quit = dl_symbol("gtk_main_quit");
 785         fp_g_signal_connect_data = dl_symbol("g_signal_connect_data");
 786         fp_gtk_widget_show = dl_symbol("gtk_widget_show");
 787         fp_gtk_main = dl_symbol("gtk_main");
 788 
 789         fp_g_path_get_dirname = dl_symbol("g_path_get_dirname");
 790 
 791         /**
 792          * GLib thread system
 793          */
 794         if (GLIB_CHECK_VERSION(2, 20, 0)) {
 795             fp_g_thread_get_initialized = dl_symbol_gthread("g_thread_get_initialized");
 796         }
 797         fp_g_thread_init = dl_symbol_gthread("g_thread_init");
 798         fp_gdk_threads_init = dl_symbol("gdk_threads_init");
 799         fp_gdk_threads_enter = dl_symbol("gdk_threads_enter");
 800         fp_gdk_threads_leave = dl_symbol("gdk_threads_leave");
 801 
 802         /**
 803          * Functions for sun_awt_X11_GtkFileDialogPeer.c
 804          */
 805         if (fp_gtk_check_version(2, 4, 0) == NULL) {
 806             // The current GtkFileChooser is available from GTK+ 2.4
 807             gtk2_file_chooser_load();
 808         }
 809 
 810         /* Some functions may be missing in pre-2.4 GTK.
 811            We handle them specially here.
 812          */
 813         fp_gtk_combo_box_new = dlsym(gtk2_libhandle, "gtk_combo_box_new");
 814         if (fp_gtk_combo_box_new == NULL) {
 815             fp_gtk_combo_box_new = dl_symbol("gtk_combo_new");
 816         }
 817 
 818         fp_gtk_combo_box_entry_new =
 819             dlsym(gtk2_libhandle, "gtk_combo_box_entry_new");
 820         if (fp_gtk_combo_box_entry_new == NULL) {
 821             fp_gtk_combo_box_entry_new = dl_symbol("gtk_combo_new");
 822             new_combo = FALSE;
 823         }
 824 
 825         fp_gtk_separator_tool_item_new =
 826             dlsym(gtk2_libhandle, "gtk_separator_tool_item_new");
 827         if (fp_gtk_separator_tool_item_new == NULL) {
 828             fp_gtk_separator_tool_item_new =
 829                 dl_symbol("gtk_vseparator_new");
 830         }
 831     }
 832     /* Now we have only one kind of exceptions: NO_SYMBOL_EXCEPTION
 833      * Otherwise we can check the return value of setjmp method.
 834      */
 835     else
 836     {
 837         dlclose(gtk2_libhandle);
 838         gtk2_libhandle = NULL;
 839 
 840         dlclose(gthread_libhandle);
 841         gthread_libhandle = NULL;
 842 
 843         return FALSE;
 844     }
 845 
 846     /*
 847      * Strip the AT-SPI GTK_MODULEs if present
 848      */
 849     gtk_modules_env = getenv ("GTK_MODULES");
 850 
 851     if (gtk_modules_env && strstr (gtk_modules_env, "atk-bridge") ||
 852         gtk_modules_env && strstr (gtk_modules_env, "gail"))
 853     {
 854         /* the new env will be smaller than the old one */
 855         gchar *s, *new_env = SAFE_SIZE_STRUCT_ALLOC(malloc,
 856                 sizeof(ENV_PREFIX), 1, strlen (gtk_modules_env));
 857 
 858         if (new_env != NULL )
 859         {
 860             /* careful, strtok modifies its args */
 861             gchar *tmp_env = strdup (gtk_modules_env);
 862             strcpy(new_env, ENV_PREFIX);
 863 
 864             /* strip out 'atk-bridge' and 'gail' */
 865             size_t PREFIX_LENGTH = strlen(ENV_PREFIX);
 866             while (s = strtok(tmp_env, ":"))
 867             {
 868                 if ((!strstr (s, "atk-bridge")) && (!strstr (s, "gail")))
 869                 {
 870                     if (strlen (new_env) > PREFIX_LENGTH) {
 871                         new_env = strcat (new_env, ":");
 872                     }
 873                     new_env = strcat(new_env, s);
 874                 }
 875                 if (tmp_env)
 876                 {
 877                     free (tmp_env);
 878                     tmp_env = NULL; /* next call to strtok arg1==NULL */
 879                 }
 880             }
 881             putenv (new_env);
 882             free (new_env);
 883             free (tmp_env);
 884         }
 885     }
 886 
 887     /*
 888      * GTK should be initialized with gtk_init_check() before use.
 889      *
 890      * gtk_init_check installs its own error handlers. It is critical that
 891      * we preserve error handler set from AWT. Otherwise we'll crash on
 892      * BadMatch errors which we would normally ignore. The IO error handler
 893      * is preserved here, too, just for consistency.
 894     */
 895     AWT_LOCK();
 896     handler = XSetErrorHandler(NULL);
 897     io_handler = XSetIOErrorHandler(NULL);
 898 
 899     if (fp_gtk_check_version(2, 2, 0) == NULL) {
 900         jclass clazz = (*env)->FindClass(env, "sun/misc/GThreadHelper");
 901         jmethodID mid_getAndSetInitializationNeededFlag =
 902                 (*env)->GetStaticMethodID(env, clazz, "getAndSetInitializationNeededFlag", "()Z");
 903         jmethodID mid_lock = (*env)->GetStaticMethodID(env, clazz, "lock", "()V");
 904         jmethodID mid_unlock = (*env)->GetStaticMethodID(env, clazz, "unlock", "()V");
 905 
 906         // Init the thread system to use GLib in a thread-safe mode
 907         (*env)->CallStaticVoidMethod(env, clazz, mid_lock);
 908 
 909         // Calling g_thread_init() multiple times leads to crash on GLib < 2.24
 910         // We can use g_thread_get_initialized () but it is available only for
 911         // GLib >= 2.20. We rely on GThreadHelper for GLib < 2.20.
 912         gboolean is_g_thread_get_initialized = FALSE;
 913         if (GLIB_CHECK_VERSION(2, 20, 0)) {
 914             is_g_thread_get_initialized = fp_g_thread_get_initialized();
 915         }
 916 
 917         if (!(*env)->CallStaticBooleanMethod(env, clazz, mid_getAndSetInitializationNeededFlag)) {
 918             if (!is_g_thread_get_initialized) {
 919                 fp_g_thread_init(NULL);
 920             }
 921 
 922             //According the GTK documentation, gdk_threads_init() should be
 923             //called before gtk_init() or gtk_init_check()
 924             fp_gdk_threads_init();
 925         }
 926         (*env)->CallStaticVoidMethod(env, clazz, mid_unlock);
 927     }
 928     result = (*fp_gtk_init_check)(NULL, NULL);
 929 
 930     XSetErrorHandler(handler);
 931     XSetIOErrorHandler(io_handler);
 932     AWT_UNLOCK();
 933 
 934     /* Initialize widget array. */
 935     for (i = 0; i < _GTK_WIDGET_TYPE_SIZE; i++)
 936     {
 937         gtk2_widgets[i] = NULL;
 938     }
 939 
 940     return result;
 941 }
 942 
 943 int gtk2_unload()
 944 {
 945     int i;
 946     char *gtk2_error;
 947 
 948     if (!gtk2_libhandle)
 949         return TRUE;
 950 
 951     /* Release painting objects */
 952     if (gtk2_white_pixmap != NULL) {
 953         (*fp_g_object_unref)(gtk2_white_pixmap);
 954         (*fp_g_object_unref)(gtk2_black_pixmap);
 955         (*fp_g_object_unref)(gtk2_white_pixbuf);
 956         (*fp_g_object_unref)(gtk2_black_pixbuf);
 957         gtk2_white_pixmap = gtk2_black_pixmap =
 958             gtk2_white_pixbuf = gtk2_black_pixbuf = NULL;
 959     }
 960     gtk2_pixbuf_width = 0;
 961     gtk2_pixbuf_height = 0;
 962 
 963     if (gtk2_window != NULL) {
 964         /* Destroying toplevel widget will destroy all contained widgets */
 965         (*fp_gtk_widget_destroy)(gtk2_window);
 966 
 967         /* Unset some static data so they get reinitialized on next load */
 968         gtk2_window = NULL;
 969     }
 970 
 971     dlerror();
 972     dlclose(gtk2_libhandle);
 973     dlclose(gthread_libhandle);
 974     if ((gtk2_error = dlerror()) != NULL)
 975     {
 976         return FALSE;
 977     }
 978     return TRUE;
 979 }
 980 
 981 /* Dispatch all pending events from the GTK event loop.
 982  * This is needed to catch theme change and update widgets' style.
 983  */
 984 void flush_gtk_event_loop()
 985 {
 986     while( (*fp_g_main_context_iteration)(NULL, FALSE));
 987 }
 988 
 989 /*
 990  * Initialize components of containment hierarchy. This creates a GtkFixed
 991  * inside a GtkWindow. All widgets get realized.
 992  */
 993 static void init_containers()
 994 {
 995     if (gtk2_window == NULL)
 996     {
 997         gtk2_window = (*fp_gtk_window_new)(GTK_WINDOW_TOPLEVEL);
 998         gtk2_fixed = (GtkFixed *)(*fp_gtk_fixed_new)();
 999         (*fp_gtk_container_add)((GtkContainer*)gtk2_window,
1000                                 (GtkWidget *)gtk2_fixed);
1001         (*fp_gtk_widget_realize)(gtk2_window);
1002         (*fp_gtk_widget_realize)((GtkWidget *)gtk2_fixed);
1003     }
1004 }
1005 
1006 /*
1007  * Ensure everything is ready for drawing an element of the specified width
1008  * and height.
1009  *
1010  * We should somehow handle translucent images. GTK can draw to X Drawables
1011  * only, which don't support alpha. When we retrieve the image back from
1012  * the server, translucency information is lost. There're several ways to
1013  * work around this:
1014  * 1) Subclass GdkPixmap and cache translucent objects on client side. This
1015  * requires us to implement parts of X server drawing logic on client side.
1016  * Many X requests can potentially be "translucent"; e.g. XDrawLine with
1017  * fill=tile and a translucent tile is a "translucent" operation, whereas
1018  * XDrawLine with fill=solid is an "opaque" one. Moreover themes can (and some
1019  * do) intermix transparent and opaque operations which makes caching even
1020  * more problematic.
1021  * 2) Use Xorg 32bit ARGB visual when available. GDK has no native support
1022  * for it (as of version 2.6). Also even in JDS 3 Xorg does not support
1023  * these visuals by default, which makes optimizing for them pointless.
1024  * We can consider doing this at a later point when ARGB visuals become more
1025  * popular.
1026  * 3') GTK has plans to use Cairo as its graphical backend (presumably in
1027  * 2.8), and Cairo supports alpha. With it we could also get rid of the
1028  * unnecessary round trip to server and do all the drawing on client side.
1029  * 4) For now we draw to two different pixmaps and restore alpha channel by
1030  * comparing results. This can be optimized by using subclassed pixmap and
1031  * doing the second drawing only if necessary.
1032 */
1033 void gtk2_init_painting(JNIEnv *env, gint width, gint height)
1034 {
1035     GdkGC *gc;
1036     GdkPixbuf *white, *black;
1037 
1038     init_containers();
1039 
1040     if (gtk2_pixbuf_width < width || gtk2_pixbuf_height < height)
1041     {
1042         white = (*fp_gdk_pixbuf_new)(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
1043         black = (*fp_gdk_pixbuf_new)(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
1044 
1045         if (white == NULL || black == NULL)
1046         {
1047             snprintf(convertionBuffer, CONV_BUFFER_SIZE, "Couldn't create pixbuf of size %dx%d", width, height);
1048             throw_exception(env, "java/lang/RuntimeException", convertionBuffer);
1049             fp_gdk_threads_leave();
1050             return;
1051         }
1052 
1053         if (gtk2_white_pixmap != NULL) {
1054             /* free old stuff */
1055             (*fp_g_object_unref)(gtk2_white_pixmap);
1056             (*fp_g_object_unref)(gtk2_black_pixmap);
1057             (*fp_g_object_unref)(gtk2_white_pixbuf);
1058             (*fp_g_object_unref)(gtk2_black_pixbuf);
1059         }
1060 
1061         gtk2_white_pixmap = (*fp_gdk_pixmap_new)(gtk2_window->window, width, height, -1);
1062         gtk2_black_pixmap = (*fp_gdk_pixmap_new)(gtk2_window->window, width, height, -1);
1063 
1064         gtk2_white_pixbuf = white;
1065         gtk2_black_pixbuf = black;
1066 
1067         gtk2_pixbuf_width = width;
1068         gtk2_pixbuf_height = height;
1069     }
1070 
1071     /* clear the pixmaps */
1072     gc = (*fp_gdk_gc_new)(gtk2_white_pixmap);
1073     (*fp_gdk_rgb_gc_set_foreground)(gc, 0xffffff);
1074     (*fp_gdk_draw_rectangle)(gtk2_white_pixmap, gc, TRUE, 0, 0, width, height);
1075     (*fp_g_object_unref)(gc);
1076 
1077     gc = (*fp_gdk_gc_new)(gtk2_black_pixmap);
1078     (*fp_gdk_rgb_gc_set_foreground)(gc, 0x000000);
1079     (*fp_gdk_draw_rectangle)(gtk2_black_pixmap, gc, TRUE, 0, 0, width, height);
1080     (*fp_g_object_unref)(gc);
1081 }
1082 
1083 /*
1084  * Restore image from white and black pixmaps and copy it into destination
1085  * buffer. This method compares two pixbufs taken from white and black
1086  * pixmaps and decodes color and alpha components. Pixbufs are RGB without
1087  * alpha, destination buffer is ABGR.
1088  *
1089  * The return value is the transparency type of the resulting image, either
1090  * one of java_awt_Transparency_OPAQUE, java_awt_Transparency_BITMASK, and
1091  * java_awt_Transparency_TRANSLUCENT.
1092  */
1093 gint gtk2_copy_image(gint *dst, gint width, gint height)
1094 {
1095     gint i, j, r, g, b;
1096     guchar *white, *black;
1097     gint stride, padding;
1098     gboolean is_opaque = TRUE;
1099     gboolean is_bitmask = TRUE;
1100 
1101     (*fp_gdk_pixbuf_get_from_drawable)(gtk2_white_pixbuf, gtk2_white_pixmap,
1102             NULL, 0, 0, 0, 0, width, height);
1103     (*fp_gdk_pixbuf_get_from_drawable)(gtk2_black_pixbuf, gtk2_black_pixmap,
1104             NULL, 0, 0, 0, 0, width, height);
1105 
1106     white = (*fp_gdk_pixbuf_get_pixels)(gtk2_white_pixbuf);
1107     black = (*fp_gdk_pixbuf_get_pixels)(gtk2_black_pixbuf);
1108     stride = (*fp_gdk_pixbuf_get_rowstride)(gtk2_black_pixbuf);
1109     padding = stride - width * 4;
1110 
1111     for (i = 0; i < height; i++) {
1112         for (j = 0; j < width; j++) {
1113             int r1 = *white++;
1114             int r2 = *black++;
1115             int alpha = 0xff + r2 - r1;
1116 
1117             switch (alpha) {
1118                 case 0:       /* transparent pixel */
1119                     r = g = b = 0;
1120                     black += 3;
1121                     white += 3;
1122                     is_opaque = FALSE;
1123                     break;
1124 
1125                 case 0xff:    /* opaque pixel */
1126                     r = r2;
1127                     g = *black++;
1128                     b = *black++;
1129                     black++;
1130                     white += 3;
1131                     break;
1132 
1133                 default:      /* translucent pixel */
1134                     r = 0xff * r2 / alpha;
1135                     g = 0xff * *black++ / alpha;
1136                     b = 0xff * *black++ / alpha;
1137                     black++;
1138                     white += 3;
1139                     is_opaque = FALSE;
1140                     is_bitmask = FALSE;
1141                     break;
1142             }
1143 
1144             *dst++ = (alpha << 24 | r << 16 | g << 8 | b);
1145         }
1146 
1147         white += padding;
1148         black += padding;
1149     }
1150     return is_opaque ? java_awt_Transparency_OPAQUE :
1151                        (is_bitmask ? java_awt_Transparency_BITMASK :
1152                                      java_awt_Transparency_TRANSLUCENT);
1153 }
1154 
1155 static void
1156 gtk2_set_direction(GtkWidget *widget, GtkTextDirection dir)
1157 {
1158     /*
1159      * Some engines (inexplicably) look at the direction of the widget's
1160      * parent, so we need to set the direction of both the widget and its
1161      * parent.
1162      */
1163     (*fp_gtk_widget_set_direction)(widget, dir);
1164     if (widget->parent != NULL) {
1165         (*fp_gtk_widget_set_direction)(widget->parent, dir);
1166     }
1167 }
1168 
1169 /*
1170  * Initializes the widget to correct state for some engines.
1171  * This is a pure empirical method.
1172  */
1173 static void init_toggle_widget(WidgetType widget_type, gint synth_state)
1174 {
1175     gboolean is_active = ((synth_state & SELECTED) != 0);
1176 
1177     if (widget_type == RADIO_BUTTON ||
1178         widget_type == CHECK_BOX ||
1179         widget_type == TOGGLE_BUTTON) {
1180         ((GtkToggleButton*)gtk2_widget)->active = is_active;
1181     }
1182 
1183     if ((synth_state & FOCUSED) != 0) {
1184         ((GtkObject*)gtk2_widget)->flags |= GTK_HAS_FOCUS;
1185     } else {
1186         ((GtkObject*)gtk2_widget)->flags &= ~GTK_HAS_FOCUS;
1187     }
1188 
1189     if ((synth_state & MOUSE_OVER) != 0 && (synth_state & PRESSED) == 0 ||
1190            (synth_state & FOCUSED) != 0 && (synth_state & PRESSED) != 0) {
1191         gtk2_widget->state = GTK_STATE_PRELIGHT;
1192     } else if ((synth_state & DISABLED) != 0) {
1193         gtk2_widget->state = GTK_STATE_INSENSITIVE;
1194     } else {
1195         gtk2_widget->state = is_active ? GTK_STATE_ACTIVE : GTK_STATE_NORMAL;
1196     }
1197 }
1198 
1199 /* GTK state_type filter */
1200 static GtkStateType get_gtk_state_type(WidgetType widget_type, gint synth_state)
1201 {
1202     GtkStateType result = GTK_STATE_NORMAL;
1203 
1204     if ((synth_state & DISABLED) != 0) {
1205         result = GTK_STATE_INSENSITIVE;
1206     } else if ((synth_state & PRESSED) != 0) {
1207         result = GTK_STATE_ACTIVE;
1208     } else if ((synth_state & MOUSE_OVER) != 0) {
1209         result = GTK_STATE_PRELIGHT;
1210     }
1211     return result;
1212 }
1213 
1214 /* GTK shadow_type filter */
1215 static GtkShadowType get_gtk_shadow_type(WidgetType widget_type, gint synth_state)
1216 {
1217     GtkShadowType result = GTK_SHADOW_OUT;
1218 
1219     if ((synth_state & SELECTED) != 0) {
1220         result = GTK_SHADOW_IN;
1221     }
1222     return result;
1223 }
1224 
1225 
1226 static GtkWidget* gtk2_get_arrow(GtkArrowType arrow_type, GtkShadowType shadow_type)
1227 {
1228     GtkWidget *arrow = NULL;
1229     if (NULL == gtk2_widgets[_GTK_ARROW_TYPE])
1230     {
1231         gtk2_widgets[_GTK_ARROW_TYPE] = (*fp_gtk_arrow_new)(arrow_type, shadow_type);
1232         (*fp_gtk_container_add)((GtkContainer *)gtk2_fixed, gtk2_widgets[_GTK_ARROW_TYPE]);
1233         (*fp_gtk_widget_realize)(gtk2_widgets[_GTK_ARROW_TYPE]);
1234     }
1235     arrow = gtk2_widgets[_GTK_ARROW_TYPE];
1236 
1237     (*fp_gtk_arrow_set)(arrow, arrow_type, shadow_type);
1238     return arrow;
1239 }
1240 
1241 static GtkAdjustment* create_adjustment()
1242 {
1243     return (GtkAdjustment *)
1244             (*fp_gtk_adjustment_new)(50.0, 0.0, 100.0, 10.0, 20.0, 20.0);
1245 }
1246 
1247 /**
1248  * Returns a pointer to the cached native widget for the specified widget
1249  * type.
1250  */
1251 static GtkWidget *gtk2_get_widget(WidgetType widget_type)
1252 {
1253     gboolean init_result = FALSE;
1254     GtkWidget *result = NULL;
1255     switch (widget_type)
1256     {
1257         case BUTTON:
1258         case TABLE_HEADER:
1259             if (init_result = (NULL == gtk2_widgets[_GTK_BUTTON_TYPE]))
1260             {
1261                 gtk2_widgets[_GTK_BUTTON_TYPE] = (*fp_gtk_button_new)();
1262             }
1263             result = gtk2_widgets[_GTK_BUTTON_TYPE];
1264             break;
1265         case CHECK_BOX:
1266             if (init_result = (NULL == gtk2_widgets[_GTK_CHECK_BUTTON_TYPE]))
1267             {
1268                 gtk2_widgets[_GTK_CHECK_BUTTON_TYPE] =
1269                     (*fp_gtk_check_button_new)();
1270             }
1271             result = gtk2_widgets[_GTK_CHECK_BUTTON_TYPE];
1272             break;
1273         case CHECK_BOX_MENU_ITEM:
1274             if (init_result = (NULL == gtk2_widgets[_GTK_CHECK_MENU_ITEM_TYPE]))
1275             {
1276                 gtk2_widgets[_GTK_CHECK_MENU_ITEM_TYPE] =
1277                     (*fp_gtk_check_menu_item_new)();
1278             }
1279             result = gtk2_widgets[_GTK_CHECK_MENU_ITEM_TYPE];
1280             break;
1281         /************************************************************
1282          *    Creation a dedicated color chooser is dangerous because
1283          * it deadlocks the EDT
1284          ************************************************************/
1285 /*        case COLOR_CHOOSER:
1286             if (init_result =
1287                     (NULL == gtk2_widgets[_GTK_COLOR_SELECTION_DIALOG_TYPE]))
1288             {
1289                 gtk2_widgets[_GTK_COLOR_SELECTION_DIALOG_TYPE] =
1290                     (*fp_gtk_color_selection_dialog_new)(NULL);
1291             }
1292             result = gtk2_widgets[_GTK_COLOR_SELECTION_DIALOG_TYPE];
1293             break;*/
1294         case COMBO_BOX:
1295             if (init_result = (NULL == gtk2_widgets[_GTK_COMBO_BOX_TYPE]))
1296             {
1297                 gtk2_widgets[_GTK_COMBO_BOX_TYPE] =
1298                     (*fp_gtk_combo_box_new)();
1299             }
1300             result = gtk2_widgets[_GTK_COMBO_BOX_TYPE];
1301             break;
1302         case COMBO_BOX_ARROW_BUTTON:
1303             if (init_result =
1304                     (NULL == gtk2_widgets[_GTK_COMBO_BOX_ARROW_BUTTON_TYPE]))
1305             {
1306                 gtk2_widgets[_GTK_COMBO_BOX_ARROW_BUTTON_TYPE] =
1307                      (*fp_gtk_toggle_button_new)();
1308             }
1309             result = gtk2_widgets[_GTK_COMBO_BOX_ARROW_BUTTON_TYPE];
1310             break;
1311         case COMBO_BOX_TEXT_FIELD:
1312             if (init_result =
1313                     (NULL == gtk2_widgets[_GTK_COMBO_BOX_TEXT_FIELD_TYPE]))
1314             {
1315                 result = gtk2_widgets[_GTK_COMBO_BOX_TEXT_FIELD_TYPE] =
1316                      (*fp_gtk_entry_new)();
1317             }
1318             result = gtk2_widgets[_GTK_COMBO_BOX_TEXT_FIELD_TYPE];
1319             break;
1320         case DESKTOP_ICON:
1321         case INTERNAL_FRAME_TITLE_PANE:
1322         case LABEL:
1323             if (init_result = (NULL == gtk2_widgets[_GTK_LABEL_TYPE]))
1324             {
1325                 gtk2_widgets[_GTK_LABEL_TYPE] =
1326                     (*fp_gtk_label_new)(NULL);
1327             }
1328             result = gtk2_widgets[_GTK_LABEL_TYPE];
1329             break;
1330         case DESKTOP_PANE:
1331         case PANEL:
1332         case ROOT_PANE:
1333             if (init_result = (NULL == gtk2_widgets[_GTK_CONTAINER_TYPE]))
1334             {
1335                 /* There is no constructor for a container type.  I've
1336                  * chosen GtkFixed container since it has a default
1337                  * constructor.
1338                  */
1339                 gtk2_widgets[_GTK_CONTAINER_TYPE] =
1340                     (*fp_gtk_fixed_new)();
1341             }
1342             result = gtk2_widgets[_GTK_CONTAINER_TYPE];
1343             break;
1344         case EDITOR_PANE:
1345         case TEXT_AREA:
1346         case TEXT_PANE:
1347             if (init_result = (NULL == gtk2_widgets[_GTK_TEXT_VIEW_TYPE]))
1348             {
1349                 gtk2_widgets[_GTK_TEXT_VIEW_TYPE] =
1350                     (*fp_gtk_text_view_new)();
1351             }
1352             result = gtk2_widgets[_GTK_TEXT_VIEW_TYPE];
1353             break;
1354         case FORMATTED_TEXT_FIELD:
1355         case PASSWORD_FIELD:
1356         case TEXT_FIELD:
1357             if (init_result = (NULL == gtk2_widgets[_GTK_ENTRY_TYPE]))
1358             {
1359                 gtk2_widgets[_GTK_ENTRY_TYPE] =
1360                     (*fp_gtk_entry_new)();
1361             }
1362             result = gtk2_widgets[_GTK_ENTRY_TYPE];
1363             break;
1364         case HANDLE_BOX:
1365             if (init_result = (NULL == gtk2_widgets[_GTK_HANDLE_BOX_TYPE]))
1366             {
1367                 gtk2_widgets[_GTK_HANDLE_BOX_TYPE] =
1368                     (*fp_gtk_handle_box_new)();
1369             }
1370             result = gtk2_widgets[_GTK_HANDLE_BOX_TYPE];
1371             break;
1372         case HSCROLL_BAR:
1373         case HSCROLL_BAR_BUTTON_LEFT:
1374         case HSCROLL_BAR_BUTTON_RIGHT:
1375         case HSCROLL_BAR_TRACK:
1376         case HSCROLL_BAR_THUMB:
1377             if (init_result = (NULL == gtk2_widgets[_GTK_HSCROLLBAR_TYPE]))
1378             {
1379                 gtk2_widgets[_GTK_HSCROLLBAR_TYPE] =
1380                     (*fp_gtk_hscrollbar_new)(create_adjustment());
1381             }
1382             result = gtk2_widgets[_GTK_HSCROLLBAR_TYPE];
1383             break;
1384         case HSEPARATOR:
1385             if (init_result = (NULL == gtk2_widgets[_GTK_HSEPARATOR_TYPE]))
1386             {
1387                 gtk2_widgets[_GTK_HSEPARATOR_TYPE] =
1388                     (*fp_gtk_hseparator_new)();
1389             }
1390             result = gtk2_widgets[_GTK_HSEPARATOR_TYPE];
1391             break;
1392         case HSLIDER:
1393         case HSLIDER_THUMB:
1394         case HSLIDER_TRACK:
1395             if (init_result = (NULL == gtk2_widgets[_GTK_HSCALE_TYPE]))
1396             {
1397                 gtk2_widgets[_GTK_HSCALE_TYPE] =
1398                     (*fp_gtk_hscale_new)(NULL);
1399             }
1400             result = gtk2_widgets[_GTK_HSCALE_TYPE];
1401             break;
1402         case HSPLIT_PANE_DIVIDER:
1403         case SPLIT_PANE:
1404             if (init_result = (NULL == gtk2_widgets[_GTK_HPANED_TYPE]))
1405             {
1406                 gtk2_widgets[_GTK_HPANED_TYPE] = (*fp_gtk_hpaned_new)();
1407             }
1408             result = gtk2_widgets[_GTK_HPANED_TYPE];
1409             break;
1410         case IMAGE:
1411             if (init_result = (NULL == gtk2_widgets[_GTK_IMAGE_TYPE]))
1412             {
1413                 gtk2_widgets[_GTK_IMAGE_TYPE] = (*fp_gtk_image_new)();
1414             }
1415             result = gtk2_widgets[_GTK_IMAGE_TYPE];
1416             break;
1417         case INTERNAL_FRAME:
1418             if (init_result = (NULL == gtk2_widgets[_GTK_WINDOW_TYPE]))
1419             {
1420                 gtk2_widgets[_GTK_WINDOW_TYPE] =
1421                     (*fp_gtk_window_new)(GTK_WINDOW_TOPLEVEL);
1422             }
1423             result = gtk2_widgets[_GTK_WINDOW_TYPE];
1424             break;
1425         case TOOL_TIP:
1426             if (init_result = (NULL == gtk2_widgets[_GTK_TOOLTIP_TYPE]))
1427             {
1428                 result = (*fp_gtk_window_new)(GTK_WINDOW_TOPLEVEL);
1429                 (*fp_gtk_widget_set_name)(result, "gtk-tooltips");
1430                 gtk2_widgets[_GTK_TOOLTIP_TYPE] = result;
1431             }
1432             result = gtk2_widgets[_GTK_TOOLTIP_TYPE];
1433             break;
1434         case LIST:
1435         case TABLE:
1436         case TREE:
1437         case TREE_CELL:
1438             if (init_result = (NULL == gtk2_widgets[_GTK_TREE_VIEW_TYPE]))
1439             {
1440                 gtk2_widgets[_GTK_TREE_VIEW_TYPE] =
1441                     (*fp_gtk_tree_view_new)();
1442             }
1443             result = gtk2_widgets[_GTK_TREE_VIEW_TYPE];
1444             break;
1445         case TITLED_BORDER:
1446             if (init_result = (NULL == gtk2_widgets[_GTK_FRAME_TYPE]))
1447             {
1448                 gtk2_widgets[_GTK_FRAME_TYPE] = fp_gtk_frame_new(NULL);
1449             }
1450             result = gtk2_widgets[_GTK_FRAME_TYPE];
1451             break;
1452         case POPUP_MENU:
1453             if (init_result = (NULL == gtk2_widgets[_GTK_MENU_TYPE]))
1454             {
1455                 gtk2_widgets[_GTK_MENU_TYPE] =
1456                     (*fp_gtk_menu_new)();
1457             }
1458             result = gtk2_widgets[_GTK_MENU_TYPE];
1459             break;
1460         case MENU:
1461         case MENU_ITEM:
1462         case MENU_ITEM_ACCELERATOR:
1463             if (init_result = (NULL == gtk2_widgets[_GTK_MENU_ITEM_TYPE]))
1464             {
1465                 gtk2_widgets[_GTK_MENU_ITEM_TYPE] =
1466                     (*fp_gtk_menu_item_new)();
1467             }
1468             result = gtk2_widgets[_GTK_MENU_ITEM_TYPE];
1469             break;
1470         case MENU_BAR:
1471             if (init_result = (NULL == gtk2_widgets[_GTK_MENU_BAR_TYPE]))
1472             {
1473                 gtk2_widgets[_GTK_MENU_BAR_TYPE] =
1474                     (*fp_gtk_menu_bar_new)();
1475             }
1476             result = gtk2_widgets[_GTK_MENU_BAR_TYPE];
1477             break;
1478         case COLOR_CHOOSER:
1479         case OPTION_PANE:
1480             if (init_result = (NULL == gtk2_widgets[_GTK_DIALOG_TYPE]))
1481             {
1482                 gtk2_widgets[_GTK_DIALOG_TYPE] =
1483                     (*fp_gtk_dialog_new)();
1484             }
1485             result = gtk2_widgets[_GTK_DIALOG_TYPE];
1486             break;
1487         case POPUP_MENU_SEPARATOR:
1488             if (init_result =
1489                     (NULL == gtk2_widgets[_GTK_SEPARATOR_MENU_ITEM_TYPE]))
1490             {
1491                 gtk2_widgets[_GTK_SEPARATOR_MENU_ITEM_TYPE] =
1492                     (*fp_gtk_separator_menu_item_new)();
1493             }
1494             result = gtk2_widgets[_GTK_SEPARATOR_MENU_ITEM_TYPE];
1495             break;
1496         case HPROGRESS_BAR:
1497             if (init_result = (NULL == gtk2_widgets[_GTK_HPROGRESS_BAR_TYPE]))
1498             {
1499                 gtk2_widgets[_GTK_HPROGRESS_BAR_TYPE] =
1500                     (*fp_gtk_progress_bar_new)();
1501             }
1502             result = gtk2_widgets[_GTK_HPROGRESS_BAR_TYPE];
1503             break;
1504         case VPROGRESS_BAR:
1505             if (init_result = (NULL == gtk2_widgets[_GTK_VPROGRESS_BAR_TYPE]))
1506             {
1507                 gtk2_widgets[_GTK_VPROGRESS_BAR_TYPE] =
1508                     (*fp_gtk_progress_bar_new)();
1509                 /*
1510                  * Vertical JProgressBars always go bottom-to-top,
1511                  * regardless of the ComponentOrientation.
1512                  */
1513                 (*fp_gtk_progress_bar_set_orientation)(
1514                     (GtkProgressBar *)gtk2_widgets[_GTK_VPROGRESS_BAR_TYPE],
1515                     GTK_PROGRESS_BOTTOM_TO_TOP);
1516             }
1517             result = gtk2_widgets[_GTK_VPROGRESS_BAR_TYPE];
1518             break;
1519         case RADIO_BUTTON:
1520             if (init_result = (NULL == gtk2_widgets[_GTK_RADIO_BUTTON_TYPE]))
1521             {
1522                 gtk2_widgets[_GTK_RADIO_BUTTON_TYPE] =
1523                     (*fp_gtk_radio_button_new)(NULL);
1524             }
1525             result = gtk2_widgets[_GTK_RADIO_BUTTON_TYPE];
1526             break;
1527         case RADIO_BUTTON_MENU_ITEM:
1528             if (init_result =
1529                     (NULL == gtk2_widgets[_GTK_RADIO_MENU_ITEM_TYPE]))
1530             {
1531                 gtk2_widgets[_GTK_RADIO_MENU_ITEM_TYPE] =
1532                     (*fp_gtk_radio_menu_item_new)(NULL);
1533             }
1534             result = gtk2_widgets[_GTK_RADIO_MENU_ITEM_TYPE];
1535             break;
1536         case SCROLL_PANE:
1537             if (init_result =
1538                     (NULL == gtk2_widgets[_GTK_SCROLLED_WINDOW_TYPE]))
1539             {
1540                 gtk2_widgets[_GTK_SCROLLED_WINDOW_TYPE] =
1541                     (*fp_gtk_scrolled_window_new)(NULL, NULL);
1542             }
1543             result = gtk2_widgets[_GTK_SCROLLED_WINDOW_TYPE];
1544             break;
1545         case SPINNER:
1546         case SPINNER_ARROW_BUTTON:
1547         case SPINNER_TEXT_FIELD:
1548             if (init_result = (NULL == gtk2_widgets[_GTK_SPIN_BUTTON_TYPE]))
1549             {
1550                 result = gtk2_widgets[_GTK_SPIN_BUTTON_TYPE] =
1551                     (*fp_gtk_spin_button_new)(NULL, 0, 0);
1552             }
1553             result = gtk2_widgets[_GTK_SPIN_BUTTON_TYPE];
1554             break;
1555         case TABBED_PANE:
1556         case TABBED_PANE_TAB_AREA:
1557         case TABBED_PANE_CONTENT:
1558         case TABBED_PANE_TAB:
1559             if (init_result = (NULL == gtk2_widgets[_GTK_NOTEBOOK_TYPE]))
1560             {
1561                 gtk2_widgets[_GTK_NOTEBOOK_TYPE] =
1562                     (*fp_gtk_notebook_new)(NULL);
1563             }
1564             result = gtk2_widgets[_GTK_NOTEBOOK_TYPE];
1565             break;
1566         case TOGGLE_BUTTON:
1567             if (init_result = (NULL == gtk2_widgets[_GTK_TOGGLE_BUTTON_TYPE]))
1568             {
1569                 gtk2_widgets[_GTK_TOGGLE_BUTTON_TYPE] =
1570                     (*fp_gtk_toggle_button_new)(NULL);
1571             }
1572             result = gtk2_widgets[_GTK_TOGGLE_BUTTON_TYPE];
1573             break;
1574         case TOOL_BAR:
1575         case TOOL_BAR_DRAG_WINDOW:
1576             if (init_result = (NULL == gtk2_widgets[_GTK_TOOLBAR_TYPE]))
1577             {
1578                 gtk2_widgets[_GTK_TOOLBAR_TYPE] =
1579                     (*fp_gtk_toolbar_new)(NULL);
1580             }
1581             result = gtk2_widgets[_GTK_TOOLBAR_TYPE];
1582             break;
1583         case TOOL_BAR_SEPARATOR:
1584             if (init_result =
1585                     (NULL == gtk2_widgets[_GTK_SEPARATOR_TOOL_ITEM_TYPE]))
1586             {
1587                 gtk2_widgets[_GTK_SEPARATOR_TOOL_ITEM_TYPE] =
1588                     (*fp_gtk_separator_tool_item_new)();
1589             }
1590             result = gtk2_widgets[_GTK_SEPARATOR_TOOL_ITEM_TYPE];
1591             break;
1592         case VIEWPORT:
1593             if (init_result = (NULL == gtk2_widgets[_GTK_VIEWPORT_TYPE]))
1594             {
1595                 GtkAdjustment *adjustment = create_adjustment();
1596                 gtk2_widgets[_GTK_VIEWPORT_TYPE] =
1597                     (*fp_gtk_viewport_new)(adjustment, adjustment);
1598             }
1599             result = gtk2_widgets[_GTK_VIEWPORT_TYPE];
1600             break;
1601         case VSCROLL_BAR:
1602         case VSCROLL_BAR_BUTTON_UP:
1603         case VSCROLL_BAR_BUTTON_DOWN:
1604         case VSCROLL_BAR_TRACK:
1605         case VSCROLL_BAR_THUMB:
1606             if (init_result = (NULL == gtk2_widgets[_GTK_VSCROLLBAR_TYPE]))
1607             {
1608                 gtk2_widgets[_GTK_VSCROLLBAR_TYPE] =
1609                     (*fp_gtk_vscrollbar_new)(create_adjustment());
1610             }
1611             result = gtk2_widgets[_GTK_VSCROLLBAR_TYPE];
1612             break;
1613         case VSEPARATOR:
1614             if (init_result = (NULL == gtk2_widgets[_GTK_VSEPARATOR_TYPE]))
1615             {
1616                 gtk2_widgets[_GTK_VSEPARATOR_TYPE] =
1617                     (*fp_gtk_vseparator_new)();
1618             }
1619             result = gtk2_widgets[_GTK_VSEPARATOR_TYPE];
1620             break;
1621         case VSLIDER:
1622         case VSLIDER_THUMB:
1623         case VSLIDER_TRACK:
1624             if (init_result = (NULL == gtk2_widgets[_GTK_VSCALE_TYPE]))
1625             {
1626                 gtk2_widgets[_GTK_VSCALE_TYPE] =
1627                     (*fp_gtk_vscale_new)(NULL);
1628             }
1629             result = gtk2_widgets[_GTK_VSCALE_TYPE];
1630             /*
1631              * Vertical JSliders start at the bottom, while vertical
1632              * GtkVScale widgets start at the top (by default), so to fix
1633              * this we set the "inverted" flag to get the Swing behavior.
1634              */
1635             ((GtkRange*)result)->inverted = 1;
1636             break;
1637         case VSPLIT_PANE_DIVIDER:
1638             if (init_result = (NULL == gtk2_widgets[_GTK_VPANED_TYPE]))
1639             {
1640                 gtk2_widgets[_GTK_VPANED_TYPE] = (*fp_gtk_vpaned_new)();
1641             }
1642             result = gtk2_widgets[_GTK_VPANED_TYPE];
1643             break;
1644         default:
1645             result = NULL;
1646             break;
1647     }
1648 
1649     if (result != NULL && init_result)
1650     {
1651         if (widget_type == RADIO_BUTTON_MENU_ITEM ||
1652                 widget_type == CHECK_BOX_MENU_ITEM ||
1653                 widget_type == MENU_ITEM ||
1654                 widget_type == MENU ||
1655                 widget_type == POPUP_MENU_SEPARATOR)
1656         {
1657             GtkWidget *menu = gtk2_get_widget(POPUP_MENU);
1658             (*fp_gtk_menu_shell_append)((GtkMenuShell *)menu, result);
1659         }
1660         else if (widget_type == POPUP_MENU)
1661         {
1662             GtkWidget *menu_bar = gtk2_get_widget(MENU_BAR);
1663             GtkWidget *root_menu = (*fp_gtk_menu_item_new)();
1664             (*fp_gtk_menu_item_set_submenu)((GtkMenuItem*)root_menu, result);
1665             (*fp_gtk_menu_shell_append)((GtkMenuShell *)menu_bar, root_menu);
1666         }
1667         else if (widget_type == COMBO_BOX_ARROW_BUTTON ||
1668                  widget_type == COMBO_BOX_TEXT_FIELD)
1669         {
1670             /*
1671             * We add a regular GtkButton/GtkEntry to a GtkComboBoxEntry
1672             * in order to trick engines into thinking it's a real combobox
1673             * arrow button/text field.
1674             */
1675             GtkWidget *combo = (*fp_gtk_combo_box_entry_new)();
1676 
1677             if (new_combo && widget_type == COMBO_BOX_ARROW_BUTTON) {
1678                 (*fp_gtk_widget_set_parent)(result, combo);
1679                 ((GtkBin*)combo)->child = result;
1680             } else {
1681                 (*fp_gtk_container_add)((GtkContainer *)combo, result);
1682             }
1683             (*fp_gtk_container_add)((GtkContainer *)gtk2_fixed, combo);
1684         }
1685         else if (widget_type != TOOL_TIP &&
1686                  widget_type != INTERNAL_FRAME &&
1687                  widget_type != OPTION_PANE)
1688         {
1689             (*fp_gtk_container_add)((GtkContainer *)gtk2_fixed, result);
1690         }
1691         (*fp_gtk_widget_realize)(result);
1692     }
1693     return result;
1694 }
1695 
1696 void gtk2_paint_arrow(WidgetType widget_type, GtkStateType state_type,
1697         GtkShadowType shadow_type, const gchar *detail,
1698         gint x, gint y, gint width, gint height,
1699         GtkArrowType arrow_type, gboolean fill)
1700 {
1701     static int w, h;
1702     static GtkRequisition size;
1703 
1704     if (widget_type == COMBO_BOX_ARROW_BUTTON || widget_type == TABLE)
1705         gtk2_widget = gtk2_get_arrow(arrow_type, shadow_type);
1706     else
1707         gtk2_widget = gtk2_get_widget(widget_type);
1708 
1709     switch (widget_type)
1710     {
1711         case SPINNER_ARROW_BUTTON:
1712             x = 1;
1713             y = ((arrow_type == GTK_ARROW_UP) ? 2 : 0);
1714             height -= 2;
1715             width -= 3;
1716 
1717             w = width / 2;
1718             w -= w % 2 - 1;
1719             h = (w + 1) / 2;
1720             break;
1721 
1722         case HSCROLL_BAR_BUTTON_LEFT:
1723         case HSCROLL_BAR_BUTTON_RIGHT:
1724         case VSCROLL_BAR_BUTTON_UP:
1725         case VSCROLL_BAR_BUTTON_DOWN:
1726             w = width / 2;
1727             h = height / 2;
1728             break;
1729 
1730         case COMBO_BOX_ARROW_BUTTON:
1731         case TABLE:
1732             x = 1;
1733             (*fp_gtk_widget_size_request)(gtk2_widget, &size);
1734             w = size.width - ((GtkMisc*)gtk2_widget)->xpad * 2;
1735             h = size.height - ((GtkMisc*)gtk2_widget)->ypad * 2;
1736             w = h = MIN(MIN(w, h), MIN(width,height)) * 0.7;
1737             break;
1738 
1739         default:
1740             w = width;
1741             h = height;
1742             break;
1743     }
1744     x += (width - w) / 2;
1745     y += (height - h) / 2;
1746 
1747     (*fp_gtk_paint_arrow)(gtk2_widget->style, gtk2_white_pixmap, state_type,
1748             shadow_type, NULL, gtk2_widget, detail, arrow_type, fill,
1749             x, y, w, h);
1750     (*fp_gtk_paint_arrow)(gtk2_widget->style, gtk2_black_pixmap, state_type,
1751             shadow_type, NULL, gtk2_widget, detail, arrow_type, fill,
1752             x, y, w, h);
1753 }
1754 
1755 void gtk2_paint_box(WidgetType widget_type, GtkStateType state_type,
1756                     GtkShadowType shadow_type, const gchar *detail,
1757                     gint x, gint y, gint width, gint height,
1758                     gint synth_state, GtkTextDirection dir)
1759 {
1760     gtk2_widget = gtk2_get_widget(widget_type);
1761 
1762     /*
1763      * The clearlooks engine sometimes looks at the widget's state field
1764      * instead of just the state_type variable that we pass in, so to account
1765      * for those cases we set the widget's state field accordingly.  The
1766      * flags field is similarly important for things like focus/default state.
1767      */
1768     gtk2_widget->state = state_type;
1769 
1770     if (widget_type == HSLIDER_TRACK) {
1771         /*
1772          * For horizontal JSliders with right-to-left orientation, we need
1773          * to set the "inverted" flag to match the native GTK behavior where
1774          * the foreground highlight is on the right side of the slider thumb.
1775          * This is needed especially for the ubuntulooks engine, which looks
1776          * exclusively at the "inverted" flag to determine on which side of
1777          * the thumb to paint the highlight...
1778          */
1779         ((GtkRange*)gtk2_widget)->inverted = (dir == GTK_TEXT_DIR_RTL);
1780 
1781         /*
1782          * Note however that other engines like clearlooks will look at both
1783          * the "inverted" field and the text direction to determine how
1784          * the foreground highlight is painted:
1785          *     !inverted && ltr --> paint highlight on left side
1786          *     !inverted && rtl --> paint highlight on right side
1787          *      inverted && ltr --> paint highlight on right side
1788          *      inverted && rtl --> paint highlight on left side
1789          * So the only way to reliably get the desired results for horizontal
1790          * JSlider (i.e., highlight on left side for LTR ComponentOrientation
1791          * and highlight on right side for RTL ComponentOrientation) is to
1792          * always override text direction as LTR, and then set the "inverted"
1793          * flag accordingly (as we have done above).
1794          */
1795         dir = GTK_TEXT_DIR_LTR;
1796     }
1797 
1798     /*
1799      * Some engines (e.g. clearlooks) will paint the shadow of certain
1800      * widgets (e.g. COMBO_BOX_ARROW_BUTTON) differently depending on the
1801      * the text direction.
1802      */
1803     gtk2_set_direction(gtk2_widget, dir);
1804 
1805     switch (widget_type) {
1806     case BUTTON:
1807         if (synth_state & DEFAULT) {
1808             ((GtkObject*)gtk2_widget)->flags |= GTK_HAS_DEFAULT;
1809         } else {
1810             ((GtkObject*)gtk2_widget)->flags &= ~GTK_HAS_DEFAULT;
1811         }
1812         break;
1813     case TOGGLE_BUTTON:
1814         init_toggle_widget(widget_type, synth_state);
1815         break;
1816     case HSCROLL_BAR_BUTTON_LEFT:
1817         /*
1818          * The clearlooks engine will draw a "left" button when:
1819          *   x == w->allocation.x
1820          *
1821          * The ubuntulooks engine will draw a "left" button when:
1822          *   [x,y,width,height]
1823          *     intersects
1824          *   [w->alloc.x,w->alloc.y,width,height]
1825          *
1826          * The values that are set below should ensure that a "left"
1827          * button is rendered for both of these (and other) engines.
1828          */
1829         gtk2_widget->allocation.x = x;
1830         gtk2_widget->allocation.y = y;
1831         gtk2_widget->allocation.width = width;
1832         gtk2_widget->allocation.height = height;
1833         break;
1834     case HSCROLL_BAR_BUTTON_RIGHT:
1835         /*
1836          * The clearlooks engine will draw a "right" button when:
1837          *   x + width == w->allocation.x + w->allocation.width
1838          *
1839          * The ubuntulooks engine will draw a "right" button when:
1840          *   [x,y,width,height]
1841          *     does not intersect
1842          *   [w->alloc.x,w->alloc.y,width,height]
1843          *     but does intersect
1844          *   [w->alloc.x+width,w->alloc.y,width,height]
1845          *
1846          * The values that are set below should ensure that a "right"
1847          * button is rendered for both of these (and other) engines.
1848          */
1849         gtk2_widget->allocation.x = x+width;
1850         gtk2_widget->allocation.y = 0;
1851         gtk2_widget->allocation.width = 0;
1852         gtk2_widget->allocation.height = height;
1853         break;
1854     case VSCROLL_BAR_BUTTON_UP:
1855         /*
1856          * The clearlooks engine will draw an "up" button when:
1857          *   y == w->allocation.y
1858          *
1859          * The ubuntulooks engine will draw an "up" button when:
1860          *   [x,y,width,height]
1861          *     intersects
1862          *   [w->alloc.x,w->alloc.y,width,height]
1863          *
1864          * The values that are set below should ensure that an "up"
1865          * button is rendered for both of these (and other) engines.
1866          */
1867         gtk2_widget->allocation.x = x;
1868         gtk2_widget->allocation.y = y;
1869         gtk2_widget->allocation.width = width;
1870         gtk2_widget->allocation.height = height;
1871         break;
1872     case VSCROLL_BAR_BUTTON_DOWN:
1873         /*
1874          * The clearlooks engine will draw a "down" button when:
1875          *   y + height == w->allocation.y + w->allocation.height
1876          *
1877          * The ubuntulooks engine will draw a "down" button when:
1878          *   [x,y,width,height]
1879          *     does not intersect
1880          *   [w->alloc.x,w->alloc.y,width,height]
1881          *     but does intersect
1882          *   [w->alloc.x,w->alloc.y+height,width,height]
1883          *
1884          * The values that are set below should ensure that a "down"
1885          * button is rendered for both of these (and other) engines.
1886          */
1887         gtk2_widget->allocation.x = x;
1888         gtk2_widget->allocation.y = y+height;
1889         gtk2_widget->allocation.width = width;
1890         gtk2_widget->allocation.height = 0;
1891         break;
1892     default:
1893         break;
1894     }
1895 
1896     (*fp_gtk_paint_box)(gtk2_widget->style, gtk2_white_pixmap, state_type,
1897             shadow_type, NULL, gtk2_widget, detail, x, y, width, height);
1898     (*fp_gtk_paint_box)(gtk2_widget->style, gtk2_black_pixmap, state_type,
1899             shadow_type, NULL, gtk2_widget, detail, x, y, width, height);
1900 
1901     /*
1902      * Reset the text direction to the default value so that we don't
1903      * accidentally affect other operations and widgets.
1904      */
1905     gtk2_set_direction(gtk2_widget, GTK_TEXT_DIR_LTR);
1906 }
1907 
1908 void gtk2_paint_box_gap(WidgetType widget_type, GtkStateType state_type,
1909         GtkShadowType shadow_type, const gchar *detail,
1910         gint x, gint y, gint width, gint height,
1911         GtkPositionType gap_side, gint gap_x, gint gap_width)
1912 {
1913     /* Clearlooks needs a real clip area to paint the gap properly */
1914     GdkRectangle area = { x, y, width, height };
1915 
1916     gtk2_widget = gtk2_get_widget(widget_type);
1917     (*fp_gtk_paint_box_gap)(gtk2_widget->style, gtk2_white_pixmap, state_type,
1918             shadow_type, &area, gtk2_widget, detail,
1919             x, y, width, height, gap_side, gap_x, gap_width);
1920     (*fp_gtk_paint_box_gap)(gtk2_widget->style, gtk2_black_pixmap, state_type,
1921             shadow_type, &area, gtk2_widget, detail,
1922             x, y, width, height, gap_side, gap_x, gap_width);
1923 }
1924 
1925 void gtk2_paint_check(WidgetType widget_type, gint synth_state,
1926         const gchar *detail, gint x, gint y, gint width, gint height)
1927 {
1928     GtkStateType state_type = get_gtk_state_type(widget_type, synth_state);
1929     GtkShadowType shadow_type = get_gtk_shadow_type(widget_type, synth_state);
1930 
1931     gtk2_widget = gtk2_get_widget(widget_type);
1932     init_toggle_widget(widget_type, synth_state);
1933 
1934     (*fp_gtk_paint_check)(gtk2_widget->style, gtk2_white_pixmap, state_type,
1935             shadow_type, NULL, gtk2_widget, detail,
1936             x, y, width, height);
1937     (*fp_gtk_paint_check)(gtk2_widget->style, gtk2_black_pixmap, state_type,
1938             shadow_type, NULL, gtk2_widget, detail,
1939             x, y, width, height);
1940 }
1941 
1942 void gtk2_paint_diamond(WidgetType widget_type, GtkStateType state_type,
1943         GtkShadowType shadow_type, const gchar *detail,
1944         gint x, gint y, gint width, gint height)
1945 {
1946     gtk2_widget = gtk2_get_widget(widget_type);
1947     (*fp_gtk_paint_diamond)(gtk2_widget->style, gtk2_white_pixmap, state_type,
1948             shadow_type, NULL, gtk2_widget, detail,
1949             x, y, width, height);
1950     (*fp_gtk_paint_diamond)(gtk2_widget->style, gtk2_black_pixmap, state_type,
1951             shadow_type, NULL, gtk2_widget, detail,
1952             x, y, width, height);
1953 }
1954 
1955 void gtk2_paint_expander(WidgetType widget_type, GtkStateType state_type,
1956         const gchar *detail, gint x, gint y, gint width, gint height,
1957         GtkExpanderStyle expander_style)
1958 {
1959     gtk2_widget = gtk2_get_widget(widget_type);
1960     (*fp_gtk_paint_expander)(gtk2_widget->style, gtk2_white_pixmap,
1961             state_type, NULL, gtk2_widget, detail,
1962             x + width / 2, y + height / 2, expander_style);
1963     (*fp_gtk_paint_expander)(gtk2_widget->style, gtk2_black_pixmap,
1964             state_type, NULL, gtk2_widget, detail,
1965             x + width / 2, y + height / 2, expander_style);
1966 }
1967 
1968 void gtk2_paint_extension(WidgetType widget_type, GtkStateType state_type,
1969         GtkShadowType shadow_type, const gchar *detail,
1970         gint x, gint y, gint width, gint height, GtkPositionType gap_side)
1971 {
1972     gtk2_widget = gtk2_get_widget(widget_type);
1973     (*fp_gtk_paint_extension)(gtk2_widget->style, gtk2_white_pixmap,
1974             state_type, shadow_type, NULL, gtk2_widget, detail,
1975             x, y, width, height, gap_side);
1976     (*fp_gtk_paint_extension)(gtk2_widget->style, gtk2_black_pixmap,
1977             state_type, shadow_type, NULL, gtk2_widget, detail,
1978             x, y, width, height, gap_side);
1979 }
1980 
1981 void gtk2_paint_flat_box(WidgetType widget_type, GtkStateType state_type,
1982         GtkShadowType shadow_type, const gchar *detail,
1983         gint x, gint y, gint width, gint height, gboolean has_focus)
1984 {
1985     gtk2_widget = gtk2_get_widget(widget_type);
1986 
1987     if (has_focus)
1988         ((GtkObject*)gtk2_widget)->flags |= GTK_HAS_FOCUS;
1989     else
1990         ((GtkObject*)gtk2_widget)->flags &= ~GTK_HAS_FOCUS;
1991 
1992     (*fp_gtk_paint_flat_box)(gtk2_widget->style, gtk2_white_pixmap,
1993             state_type, shadow_type, NULL, gtk2_widget, detail,
1994             x, y, width, height);
1995     (*fp_gtk_paint_flat_box)(gtk2_widget->style, gtk2_black_pixmap,
1996             state_type, shadow_type, NULL, gtk2_widget, detail,
1997             x, y, width, height);
1998 }
1999 
2000 void gtk2_paint_focus(WidgetType widget_type, GtkStateType state_type,
2001         const char *detail, gint x, gint y, gint width, gint height)
2002 {
2003     gtk2_widget = gtk2_get_widget(widget_type);
2004     (*fp_gtk_paint_focus)(gtk2_widget->style, gtk2_white_pixmap, state_type,
2005             NULL, gtk2_widget, detail, x, y, width, height);
2006     (*fp_gtk_paint_focus)(gtk2_widget->style, gtk2_black_pixmap, state_type,
2007             NULL, gtk2_widget, detail, x, y, width, height);
2008 }
2009 
2010 void gtk2_paint_handle(WidgetType widget_type, GtkStateType state_type,
2011         GtkShadowType shadow_type, const gchar *detail,
2012         gint x, gint y, gint width, gint height, GtkOrientation orientation)
2013 {
2014     gtk2_widget = gtk2_get_widget(widget_type);
2015     (*fp_gtk_paint_handle)(gtk2_widget->style, gtk2_white_pixmap, state_type,
2016             shadow_type, NULL, gtk2_widget, detail,
2017             x, y, width, height, orientation);
2018     (*fp_gtk_paint_handle)(gtk2_widget->style, gtk2_black_pixmap, state_type,
2019             shadow_type, NULL, gtk2_widget, detail,
2020             x, y, width, height, orientation);
2021 }
2022 
2023 void gtk2_paint_hline(WidgetType widget_type, GtkStateType state_type,
2024         const gchar *detail, gint x, gint y, gint width, gint height)
2025 {
2026     gtk2_widget = gtk2_get_widget(widget_type);
2027     (*fp_gtk_paint_hline)(gtk2_widget->style, gtk2_white_pixmap, state_type,
2028             NULL, gtk2_widget, detail, x, x + width, y);
2029     (*fp_gtk_paint_hline)(gtk2_widget->style, gtk2_black_pixmap, state_type,
2030             NULL, gtk2_widget, detail, x, x + width, y);
2031 }
2032 
2033 void gtk2_paint_option(WidgetType widget_type, gint synth_state,
2034         const gchar *detail, gint x, gint y, gint width, gint height)
2035 {
2036     GtkStateType state_type = get_gtk_state_type(widget_type, synth_state);
2037     GtkShadowType shadow_type = get_gtk_shadow_type(widget_type, synth_state);
2038 
2039     gtk2_widget = gtk2_get_widget(widget_type);
2040     init_toggle_widget(widget_type, synth_state);
2041 
2042     (*fp_gtk_paint_option)(gtk2_widget->style, gtk2_white_pixmap, state_type,
2043             shadow_type, NULL, gtk2_widget, detail,
2044             x, y, width, height);
2045     (*fp_gtk_paint_option)(gtk2_widget->style, gtk2_black_pixmap, state_type,
2046             shadow_type, NULL, gtk2_widget, detail,
2047             x, y, width, height);
2048 }
2049 
2050 void gtk2_paint_shadow(WidgetType widget_type, GtkStateType state_type,
2051                        GtkShadowType shadow_type, const gchar *detail,
2052                        gint x, gint y, gint width, gint height,
2053                        gint synth_state, GtkTextDirection dir)
2054 {
2055     gtk2_widget = gtk2_get_widget(widget_type);
2056 
2057     /*
2058      * The clearlooks engine sometimes looks at the widget's state field
2059      * instead of just the state_type variable that we pass in, so to account
2060      * for those cases we set the widget's state field accordingly.  The
2061      * flags field is similarly important for things like focus state.
2062      */
2063     gtk2_widget->state = state_type;
2064 
2065     /*
2066      * Some engines (e.g. clearlooks) will paint the shadow of certain
2067      * widgets (e.g. COMBO_BOX_TEXT_FIELD) differently depending on the
2068      * the text direction.
2069      */
2070     gtk2_set_direction(gtk2_widget, dir);
2071 
2072     switch (widget_type) {
2073     case COMBO_BOX_TEXT_FIELD:
2074     case FORMATTED_TEXT_FIELD:
2075     case PASSWORD_FIELD:
2076     case SPINNER_TEXT_FIELD:
2077     case TEXT_FIELD:
2078         if (synth_state & FOCUSED) {
2079             ((GtkObject*)gtk2_widget)->flags |= GTK_HAS_FOCUS;
2080         } else {
2081             ((GtkObject*)gtk2_widget)->flags &= ~GTK_HAS_FOCUS;
2082         }
2083         break;
2084     default:
2085         break;
2086     }
2087 
2088     (*fp_gtk_paint_shadow)(gtk2_widget->style, gtk2_white_pixmap, state_type,
2089             shadow_type, NULL, gtk2_widget, detail, x, y, width, height);
2090     (*fp_gtk_paint_shadow)(gtk2_widget->style, gtk2_black_pixmap, state_type,
2091             shadow_type, NULL, gtk2_widget, detail, x, y, width, height);
2092 
2093     /*
2094      * Reset the text direction to the default value so that we don't
2095      * accidentally affect other operations and widgets.
2096      */
2097     gtk2_set_direction(gtk2_widget, GTK_TEXT_DIR_LTR);
2098 }
2099 
2100 void gtk2_paint_slider(WidgetType widget_type, GtkStateType state_type,
2101         GtkShadowType shadow_type, const gchar *detail,
2102         gint x, gint y, gint width, gint height, GtkOrientation orientation)
2103 {
2104     gtk2_widget = gtk2_get_widget(widget_type);
2105     (*fp_gtk_paint_slider)(gtk2_widget->style, gtk2_white_pixmap, state_type,
2106             shadow_type, NULL, gtk2_widget, detail,
2107             x, y, width, height, orientation);
2108     (*fp_gtk_paint_slider)(gtk2_widget->style, gtk2_black_pixmap, state_type,
2109             shadow_type, NULL, gtk2_widget, detail,
2110             x, y, width, height, orientation);
2111 }
2112 
2113 void gtk2_paint_vline(WidgetType widget_type, GtkStateType state_type,
2114         const gchar *detail, gint x, gint y, gint width, gint height)
2115 {
2116     gtk2_widget = gtk2_get_widget(widget_type);
2117     (*fp_gtk_paint_vline)(gtk2_widget->style, gtk2_white_pixmap, state_type,
2118             NULL, gtk2_widget, detail, y, y + height, x);
2119     (*fp_gtk_paint_vline)(gtk2_widget->style, gtk2_black_pixmap, state_type,
2120             NULL, gtk2_widget, detail, y, y + height, x);
2121 }
2122 
2123 void gtk_paint_background(WidgetType widget_type, GtkStateType state_type,
2124         gint x, gint y, gint width, gint height)
2125 {
2126     gtk2_widget = gtk2_get_widget(widget_type);
2127     (*fp_gtk_style_apply_default_background)(gtk2_widget->style,
2128             gtk2_white_pixmap, TRUE, state_type, NULL, x, y, width, height);
2129     (*fp_gtk_style_apply_default_background)(gtk2_widget->style,
2130             gtk2_black_pixmap, TRUE, state_type, NULL, x, y, width, height);
2131 }
2132 
2133 GdkPixbuf *gtk2_get_stock_icon(gint widget_type, const gchar *stock_id,
2134         GtkIconSize size, GtkTextDirection direction, const char *detail)
2135 {
2136     init_containers();
2137     gtk2_widget = gtk2_get_widget((widget_type < 0) ? IMAGE : widget_type);
2138     gtk2_widget->state = GTK_STATE_NORMAL;
2139     (*fp_gtk_widget_set_direction)(gtk2_widget, direction);
2140     return (*fp_gtk_widget_render_icon)(gtk2_widget, stock_id, size, detail);
2141 }
2142 
2143 /*************************************************/
2144 gint gtk2_get_xthickness(JNIEnv *env, WidgetType widget_type)
2145 {
2146     init_containers();
2147 
2148     gtk2_widget = gtk2_get_widget(widget_type);
2149     GtkStyle* style = gtk2_widget->style;
2150     return style->xthickness;
2151 }
2152 
2153 gint gtk2_get_ythickness(JNIEnv *env, WidgetType widget_type)
2154 {
2155     init_containers();
2156 
2157     gtk2_widget = gtk2_get_widget(widget_type);
2158     GtkStyle* style = gtk2_widget->style;
2159     return style->ythickness;
2160 }
2161 
2162 /*************************************************/
2163 guint8 recode_color(guint16 channel)
2164 {
2165     return (guint8)(channel>>8);
2166 }
2167 
2168 gint gtk2_get_color_for_state(JNIEnv *env, WidgetType widget_type,
2169                               GtkStateType state_type, ColorType color_type)
2170 {
2171     gint result = 0;
2172     GdkColor *color = NULL;
2173 
2174     init_containers();
2175 
2176     gtk2_widget = gtk2_get_widget(widget_type);
2177     GtkStyle* style = gtk2_widget->style;
2178 
2179     switch (color_type)
2180     {
2181         case FOREGROUND:
2182             color = &(style->fg[state_type]);
2183             break;
2184         case BACKGROUND:
2185             color = &(style->bg[state_type]);
2186             break;
2187         case TEXT_FOREGROUND:
2188             color = &(style->text[state_type]);
2189             break;
2190         case TEXT_BACKGROUND:
2191             color = &(style->base[state_type]);
2192             break;
2193         case LIGHT:
2194             color = &(style->light[state_type]);
2195             break;
2196         case DARK:
2197             color = &(style->dark[state_type]);
2198             break;
2199         case MID:
2200             color = &(style->mid[state_type]);
2201             break;
2202         case FOCUS:
2203         case BLACK:
2204             color = &(style->black);
2205             break;
2206         case WHITE:
2207             color = &(style->white);
2208             break;
2209     }
2210 
2211     if (color)
2212         result = recode_color(color->red)   << 16 |
2213                  recode_color(color->green) << 8  |
2214                  recode_color(color->blue);
2215 
2216     return result;
2217 }
2218 
2219 /*************************************************/
2220 jobject create_Boolean(JNIEnv *env, jboolean boolean_value);
2221 jobject create_Integer(JNIEnv *env, jint int_value);
2222 jobject create_Long(JNIEnv *env, jlong long_value);
2223 jobject create_Float(JNIEnv *env, jfloat float_value);
2224 jobject create_Double(JNIEnv *env, jdouble double_value);
2225 jobject create_Character(JNIEnv *env, jchar char_value);
2226 jobject create_Insets(JNIEnv *env, GtkBorder *border);
2227 
2228 jobject gtk2_get_class_value(JNIEnv *env, WidgetType widget_type, jstring jkey)
2229 {
2230     init_containers();
2231 
2232     const char* key = getStrFor(env, jkey);
2233     gtk2_widget = gtk2_get_widget(widget_type);
2234 
2235     GValue value;
2236     value.g_type = 0;
2237 
2238     GParamSpec* param = (*fp_gtk_widget_class_find_style_property)(
2239                                     ((GTypeInstance*)gtk2_widget)->g_class, key);
2240     if( param )
2241     {
2242         (*fp_g_value_init)( &value, param->value_type );
2243         (*fp_gtk_widget_style_get_property)(gtk2_widget, key, &value);
2244 
2245         if( (*fp_g_type_is_a)( param->value_type, G_TYPE_BOOLEAN ))
2246         {
2247             gboolean val = (*fp_g_value_get_boolean)(&value);
2248             return create_Boolean(env, (jboolean)val);
2249         }
2250         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_CHAR ))
2251         {
2252             gchar val = (*fp_g_value_get_char)(&value);
2253             return create_Character(env, (jchar)val);
2254         }
2255         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_UCHAR ))
2256         {
2257             guchar val = (*fp_g_value_get_uchar)(&value);
2258             return create_Character(env, (jchar)val);
2259         }
2260         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_INT ))
2261         {
2262             gint val = (*fp_g_value_get_int)(&value);
2263             return create_Integer(env, (jint)val);
2264         }
2265         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_UINT ))
2266         {
2267             guint val = (*fp_g_value_get_uint)(&value);
2268             return create_Integer(env, (jint)val);
2269         }
2270         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_LONG ))
2271         {
2272             glong val = (*fp_g_value_get_long)(&value);
2273             return create_Long(env, (jlong)val);
2274         }
2275         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_ULONG ))
2276         {
2277             gulong val = (*fp_g_value_get_ulong)(&value);
2278             return create_Long(env, (jlong)val);
2279         }
2280         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_INT64 ))
2281         {
2282             gint64 val = (*fp_g_value_get_int64)(&value);
2283             return create_Long(env, (jlong)val);
2284         }
2285         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_UINT64 ))
2286         {
2287             guint64 val = (*fp_g_value_get_uint64)(&value);
2288             return create_Long(env, (jlong)val);
2289         }
2290         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_FLOAT ))
2291         {
2292             gfloat val = (*fp_g_value_get_float)(&value);
2293             return create_Float(env, (jfloat)val);
2294         }
2295         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_DOUBLE ))
2296         {
2297             gdouble val = (*fp_g_value_get_double)(&value);
2298             return create_Double(env, (jdouble)val);
2299         }
2300         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_ENUM ))
2301         {
2302             gint val = (*fp_g_value_get_enum)(&value);
2303             return create_Integer(env, (jint)val);
2304         }
2305         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_FLAGS ))
2306         {
2307             guint val = (*fp_g_value_get_flags)(&value);
2308             return create_Integer(env, (jint)val);
2309         }
2310         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_STRING ))
2311         {
2312             const gchar* val = (*fp_g_value_get_string)(&value);
2313 
2314             /* We suppose that all values come in C locale and
2315              * utf-8 representation of a string is the same as
2316              * the string itself. If this isn't so we should
2317              * use g_convert.
2318              */
2319             return (*env)->NewStringUTF(env, val);
2320         }
2321         else if( (*fp_g_type_is_a)( param->value_type, GTK_TYPE_BORDER ))
2322         {
2323             GtkBorder *border = (GtkBorder*)(*fp_g_value_get_boxed)(&value);
2324             return border ? create_Insets(env, border) : NULL;
2325         }
2326 
2327         /*      TODO: Other types are not supported yet.*/
2328 /*        else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_PARAM ))
2329         {
2330             GParamSpec* val = (*fp_g_value_get_param)(&value);
2331             printf( "Param: %p\n", val );
2332         }
2333         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_BOXED ))
2334         {
2335             gpointer* val = (*fp_g_value_get_boxed)(&value);
2336             printf( "Boxed: %p\n", val );
2337         }
2338         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_POINTER ))
2339         {
2340             gpointer* val = (*fp_g_value_get_pointer)(&value);
2341             printf( "Pointer: %p\n", val );
2342         }
2343         else if( (*fp_g_type_is_a)( param->value_type, G_TYPE_OBJECT ))
2344         {
2345             GObject* val = (GObject*)(*fp_g_value_get_object)(&value);
2346             printf( "Object: %p\n", val );
2347         }*/
2348     }
2349 
2350     return NULL;
2351 }
2352 
2353 void gtk2_set_range_value(WidgetType widget_type, jdouble value,
2354                           jdouble min, jdouble max, jdouble visible)
2355 {
2356     GtkAdjustment *adj;
2357 
2358     gtk2_widget = gtk2_get_widget(widget_type);
2359 
2360     adj = (*fp_gtk_range_get_adjustment)((GtkRange *)gtk2_widget);
2361     adj->value = (gdouble)value;
2362     adj->lower = (gdouble)min;
2363     adj->upper = (gdouble)max;
2364     adj->page_size = (gdouble)visible;
2365 }
2366 
2367 /*************************************************/
2368 jobject create_Object(JNIEnv *env, jmethodID *cid,
2369                              const char* class_name,
2370                              const char* signature,
2371                              jvalue* value)
2372 {
2373     jclass  class;
2374     jobject result;
2375 
2376     class = (*env)->FindClass(env, class_name);
2377     if( class == NULL )
2378         return NULL; /* can't find/load the class, exception thrown */
2379 
2380     if( *cid == NULL)
2381     {
2382         *cid = (*env)->GetMethodID(env, class, "<init>", signature);
2383         if( *cid == NULL )
2384         {
2385             (*env)->DeleteLocalRef(env, class);
2386             return NULL; /* can't find/get the method, exception thrown */
2387         }
2388     }
2389 
2390     result = (*env)->NewObjectA(env, class, *cid, value);
2391 
2392     (*env)->DeleteLocalRef(env, class);
2393     return result;
2394 }
2395 
2396 jobject create_Boolean(JNIEnv *env, jboolean boolean_value)
2397 {
2398     static jmethodID cid = NULL;
2399     jvalue value;
2400 
2401     value.z = boolean_value;
2402 
2403     return create_Object(env, &cid, "java/lang/Boolean", "(Z)V", &value);
2404 }
2405 
2406 jobject create_Integer(JNIEnv *env, jint int_value)
2407 {
2408     static jmethodID cid = NULL;
2409     jvalue value;
2410 
2411     value.i = int_value;
2412 
2413     return create_Object(env, &cid, "java/lang/Integer", "(I)V", &value);
2414 }
2415 
2416 jobject create_Long(JNIEnv *env, jlong long_value)
2417 {
2418     static jmethodID cid = NULL;
2419     jvalue value;
2420 
2421     value.j = long_value;
2422 
2423     return create_Object(env, &cid, "java/lang/Long", "(J)V", &value);
2424 }
2425 
2426 jobject create_Float(JNIEnv *env, jfloat float_value)
2427 {
2428     static jmethodID cid = NULL;
2429     jvalue value;
2430 
2431     value.f = float_value;
2432 
2433     return create_Object(env, &cid, "java/lang/Float", "(F)V", &value);
2434 }
2435 
2436 jobject create_Double(JNIEnv *env, jdouble double_value)
2437 {
2438     static jmethodID cid = NULL;
2439     jvalue value;
2440 
2441     value.d = double_value;
2442 
2443     return create_Object(env, &cid, "java/lang/Double", "(D)V", &value);
2444 }
2445 
2446 jobject create_Character(JNIEnv *env, jchar char_value)
2447 {
2448     static jmethodID cid = NULL;
2449     jvalue value;
2450 
2451     value.c = char_value;
2452 
2453     return create_Object(env, &cid, "java/lang/Character", "(C)V", &value);
2454 }
2455 
2456 
2457 jobject create_Insets(JNIEnv *env, GtkBorder *border)
2458 {
2459     static jmethodID cid = NULL;
2460     jvalue values[4];
2461 
2462     values[0].i = border->top;
2463     values[1].i = border->left;
2464     values[2].i = border->bottom;
2465     values[3].i = border->right;
2466 
2467     return create_Object(env, &cid, "java/awt/Insets", "(IIII)V", values);
2468 }
2469 
2470 /*********************************************/
2471 jstring gtk2_get_pango_font_name(JNIEnv *env, WidgetType widget_type)
2472 {
2473     init_containers();
2474 
2475     gtk2_widget = gtk2_get_widget(widget_type);
2476     jstring  result = NULL;
2477     GtkStyle* style = gtk2_widget->style;
2478 
2479     if (style && style->font_desc)
2480     {
2481         gchar* val = (*fp_pango_font_description_to_string)(style->font_desc);
2482         result = (*env)->NewStringUTF(env, val);
2483         (*fp_g_free)( val );
2484     }
2485 
2486     return result;
2487 }
2488 
2489 /***********************************************/
2490 jobject get_string_property(JNIEnv *env, GtkSettings* settings, const gchar* key)
2491 {
2492     jobject result = NULL;
2493     gchar*  strval = NULL;
2494 
2495     (*fp_g_object_get)(settings, key, &strval, NULL);
2496     result = (*env)->NewStringUTF(env, strval);
2497     (*fp_g_free)(strval);
2498 
2499     return result;
2500 }
2501 
2502 jobject get_integer_property(JNIEnv *env, GtkSettings* settings, const gchar* key)
2503 {
2504     gint intval = NULL;
2505     (*fp_g_object_get)(settings, key, &intval, NULL);
2506     return create_Integer(env, intval);
2507 }
2508 
2509 jobject get_boolean_property(JNIEnv *env, GtkSettings* settings, const gchar* key)
2510 {
2511     gint intval = NULL;
2512     (*fp_g_object_get)(settings, key, &intval, NULL);
2513     return create_Boolean(env, intval);
2514 }
2515 
2516 jobject gtk2_get_setting(JNIEnv *env, Setting property)
2517 {
2518     GtkSettings* settings = (*fp_gtk_settings_get_default)();
2519 
2520     switch (property)
2521     {
2522         case GTK_FONT_NAME:
2523             return get_string_property(env, settings, "gtk-font-name");
2524         case GTK_ICON_SIZES:
2525             return get_string_property(env, settings, "gtk-icon-sizes");
2526         case GTK_CURSOR_BLINK:
2527             return get_boolean_property(env, settings, "gtk-cursor-blink");
2528         case GTK_CURSOR_BLINK_TIME:
2529             return get_integer_property(env, settings, "gtk-cursor-blink-time");
2530     }
2531 
2532     return NULL;
2533 }