1/*
2 * Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25#ifndef _GTK3_INTERFACE_H
26#define _GTK3_INTERFACE_H
27
28#include <stdlib.h>
29#include <jni.h>
30#include <X11/X.h>
31#include "gtk_interface.h"
32
33#define LIGHTNESS_MULT  1.3
34#define DARKNESS_MULT   0.7
35
36#define G_PI    3.1415926535897932384626433832795028841971693993751
37
38typedef enum
39{
40  GTK_STATE_FLAG_NORMAL       = 0,
41  GTK_STATE_FLAG_ACTIVE       = 1 << 0,
42  GTK_STATE_FLAG_PRELIGHT     = 1 << 1,
43  GTK_STATE_FLAG_SELECTED     = 1 << 2,
44  GTK_STATE_FLAG_INSENSITIVE  = 1 << 3,
45  GTK_STATE_FLAG_INCONSISTENT = 1 << 4,
46  GTK_STATE_FLAG_FOCUSED      = 1 << 5,
47  GTK_STATE_FLAG_BACKDROP     = 1 << 6,
48  GTK_STATE_FLAG_DIR_LTR      = 1 << 7,
49  GTK_STATE_FLAG_DIR_RTL      = 1 << 8,
50  GTK_STATE_FLAG_LINK         = 1 << 9,
51  GTK_STATE_FLAG_VISITED      = 1 << 10,
52  GTK_STATE_FLAG_CHECKED      = 1 << 11
53} GtkStateFlags;
54
55typedef enum {
56  GTK_JUNCTION_NONE = 0,
57  GTK_JUNCTION_CORNER_TOPLEFT = 1 << 0,
58  GTK_JUNCTION_CORNER_TOPRIGHT = 1 << 1,
59  GTK_JUNCTION_CORNER_BOTTOMLEFT = 1 << 2,
60  GTK_JUNCTION_CORNER_BOTTOMRIGHT = 1 << 3,
61  GTK_JUNCTION_TOP =
62                   (GTK_JUNCTION_CORNER_TOPLEFT | GTK_JUNCTION_CORNER_TOPRIGHT),
63  GTK_JUNCTION_BOTTOM =
64             (GTK_JUNCTION_CORNER_BOTTOMLEFT | GTK_JUNCTION_CORNER_BOTTOMRIGHT),
65  GTK_JUNCTION_LEFT =
66                 (GTK_JUNCTION_CORNER_TOPLEFT | GTK_JUNCTION_CORNER_BOTTOMLEFT),
67  GTK_JUNCTION_RIGHT =
68               (GTK_JUNCTION_CORNER_TOPRIGHT | GTK_JUNCTION_CORNER_BOTTOMRIGHT)
69} GtkJunctionSides;
70
71typedef enum {
72  GTK_REGION_EVEN    = 1 << 0,
73  GTK_REGION_ODD     = 1 << 1,
74  GTK_REGION_FIRST   = 1 << 2,
75  GTK_REGION_LAST    = 1 << 3,
76  GTK_REGION_ONLY    = 1 << 4,
77  GTK_REGION_SORTED  = 1 << 5
78} GtkRegionFlags;
79
80typedef enum
81{
82  GTK_WINDOW_TOPLEVEL,
83  GTK_WINDOW_POPUP
84} GtkWindowType;
85
86typedef enum
87{
88  G_PARAM_READABLE            = 1 << 0,
89  G_PARAM_WRITABLE            = 1 << 1,
90  G_PARAM_CONSTRUCT           = 1 << 2,
91  G_PARAM_CONSTRUCT_ONLY      = 1 << 3,
92  G_PARAM_LAX_VALIDATION      = 1 << 4,
93  G_PARAM_STATIC_NAME         = 1 << 5
94} GParamFlags;
95
96typedef enum
97{
98  GTK_ICON_LOOKUP_NO_SVG           = 1 << 0,
99  GTK_ICON_LOOKUP_FORCE_SVG        = 1 << 1,
100  GTK_ICON_LOOKUP_USE_BUILTIN      = 1 << 2,
101  GTK_ICON_LOOKUP_GENERIC_FALLBACK = 1 << 3,
102  GTK_ICON_LOOKUP_FORCE_SIZE       = 1 << 4
103} GtkIconLookupFlags;
104
105typedef enum
106{
107  GTK_UPDATE_CONTINUOUS,
108  GTK_UPDATE_DISCONTINUOUS,
109  GTK_UPDATE_DELAYED
110} GtkUpdateType;
111
112typedef enum
113{
114  GTK_PROGRESS_CONTINUOUS,
115  GTK_PROGRESS_DISCRETE
116} GtkProgressBarStyle;
117
118typedef enum
119{
120  GTK_PROGRESS_LEFT_TO_RIGHT,
121  GTK_PROGRESS_RIGHT_TO_LEFT,
122  GTK_PROGRESS_BOTTOM_TO_TOP,
123  GTK_PROGRESS_TOP_TO_BOTTOM
124} GtkProgressBarOrientation;
125
126typedef enum {
127    CAIRO_FORMAT_INVALID   = -1,
128    CAIRO_FORMAT_ARGB32    = 0,
129    CAIRO_FORMAT_RGB24     = 1,
130    CAIRO_FORMAT_A8        = 2,
131    CAIRO_FORMAT_A1        = 3,
132    CAIRO_FORMAT_RGB16_565 = 4
133} cairo_format_t;
134
135/* We define all structure pointers to be void* */
136typedef void GdkPixbuf;
137typedef void GMainContext;
138typedef void GVfs;
139
140typedef void GdkColormap;
141typedef void GdkDrawable;
142typedef void GdkGC;
143typedef void GdkPixmap;
144typedef void GtkStyleContext;
145typedef void GtkFixed;
146typedef void GtkMenuItem;
147typedef void GtkMenuShell;
148typedef void GtkWidgetClass;
149typedef void PangoFontDescription;
150typedef void GtkSettings;
151typedef void GtkStyleProvider;
152typedef void cairo_pattern_t;
153typedef void cairo_t;
154typedef void cairo_surface_t;
155typedef void GtkScrolledWindow;
156typedef void GtkIconTheme;
157typedef void GtkWidget;
158typedef void GtkMisc;
159typedef void GtkContainer;
160typedef void GtkBin;
161typedef void GtkAdjustment;
162typedef void GtkRange;
163typedef void GtkProgressBar;
164typedef void GtkProgress;
165
166/* Some real structures */
167typedef struct
168{
169  guint32 pixel;
170  guint16 red;
171  guint16 green;
172  guint16 blue;
173} GdkColor;
174
175typedef struct
176{
177  gdouble red;
178  gdouble green;
179  gdouble blue;
180  gdouble alpha;
181} GdkRGBA;
182
183typedef struct {
184  gint      fd;
185  gushort   events;
186  gushort   revents;
187} GPollFD;
188
189typedef struct {
190  gint x;
191  gint y;
192  gint width;
193  gint height;
194} GdkRectangle;
195
196typedef struct {
197    int x, y;
198    int width, height;
199} GtkAllocation;
200
201typedef struct {
202  gint width;
203  gint height;
204} GtkRequisition;
205
206typedef struct {
207  GtkWidgetClass *g_class;
208} GTypeInstance;
209
210typedef struct {
211  gint16 left;
212  gint16 right;
213  gint16 top;
214  gint16 bottom;
215} GtkBorder;
216
217typedef struct
218{
219  GType         g_type;
220  union {
221    gint        v_int;
222    guint       v_uint;
223    glong       v_long;
224    gulong      v_ulong;
225    gint64      v_int64;
226    guint64     v_uint64;
227    gfloat      v_float;
228    gdouble     v_double;
229    gpointer    v_pointer;
230  } data[2];
231} GValue;
232
233typedef struct {
234  GTypeInstance  g_type_instance;
235  const gchar   *name;
236  GParamFlags    flags;
237  GType    value_type;
238  GType    owner_type;
239} GParamSpec;
240
241
242static gchar* (*fp_glib_check_version)(guint required_major,
243                           guint required_minor, guint required_micro);
244
245/**
246 * Returns :
247 * NULL if the GTK+ library is compatible with the given version, or a string
248 * describing the version mismatch.
249 */
250static gchar* (*fp_gtk_check_version)(guint required_major, guint
251                           required_minor, guint required_micro);
252
253static void (*fp_g_free)(gpointer mem);
254static void (*fp_g_object_unref)(gpointer object);
255static GdkWindow *(*fp_gdk_get_default_root_window) (void);
256
257static int (*fp_gdk_pixbuf_get_bits_per_sample)(const GdkPixbuf *pixbuf);
258static guchar *(*fp_gdk_pixbuf_get_pixels)(const GdkPixbuf *pixbuf);
259static gboolean (*fp_gdk_pixbuf_get_has_alpha)(const GdkPixbuf *pixbuf);
260static int (*fp_gdk_pixbuf_get_height)(const GdkPixbuf *pixbuf);
261static int (*fp_gdk_pixbuf_get_n_channels)(const GdkPixbuf *pixbuf);
262static int (*fp_gdk_pixbuf_get_rowstride)(const GdkPixbuf *pixbuf);
263static int (*fp_gdk_pixbuf_get_width)(const GdkPixbuf *pixbuf);
264static GdkPixbuf *(*fp_gdk_pixbuf_new_from_file)(const char *filename,
265                                                              GError **error);
266static GdkColorspace (*fp_gdk_pixbuf_get_colorspace)(const GdkPixbuf *pixbuf);
267
268static GdkPixbuf *(*fp_gdk_pixbuf_get_from_drawable)(GdkWindow *window,
269        int src_x, int src_y, int width, int height);
270static GdkPixbuf *(*fp_gdk_pixbuf_scale_simple)(GdkPixbuf *src,
271        int dest_width, int dest_heigh, GdkInterpType interp_type);
272
273
274static void (*fp_gtk_widget_destroy)(void *widget);
275static void (*fp_gtk_window_present)(GtkWindow *window);
276static void (*fp_gtk_window_move)(GtkWindow *window, gint x, gint y);
277static void (*fp_gtk_window_resize)(GtkWindow *window, gint width, gint height);
278
279/**
280 * Function Pointers for GtkFileChooser
281 */
282static gchar* (*fp_gtk_file_chooser_get_filename)(GtkFileChooser *chooser);
283static void (*fp_gtk_widget_hide)(void *widget);
284static void (*fp_gtk_main_quit)(void);
285static void* (*fp_gtk_file_chooser_dialog_new)(const gchar *title,
286    GtkWindow *parent, GtkFileChooserAction action,
287    const gchar *first_button_text, ...);
288static gboolean (*fp_gtk_file_chooser_set_current_folder)
289                              (GtkFileChooser *chooser, const gchar *filename);
290static gboolean (*fp_gtk_file_chooser_set_filename)(GtkFileChooser *chooser,
291    const char *filename);
292static void (*fp_gtk_file_chooser_set_current_name)(GtkFileChooser *chooser,
293    const gchar *name);
294static void (*fp_gtk_file_filter_add_custom)(GtkFileFilter *filter,
295    GtkFileFilterFlags needed, GtkFileFilterFunc func, gpointer data,
296    GDestroyNotify notify);
297static void (*fp_gtk_file_chooser_set_filter)(GtkFileChooser *chooser,
298    GtkFileFilter *filter);
299static GType (*fp_gtk_file_chooser_get_type)(void);
300static GtkFileFilter* (*fp_gtk_file_filter_new)(void);
301static void (*fp_gtk_file_chooser_set_do_overwrite_confirmation)(
302    GtkFileChooser *chooser, gboolean do_overwrite_confirmation);
303static void (*fp_gtk_file_chooser_set_select_multiple)(
304    GtkFileChooser *chooser, gboolean select_multiple);
305static gchar* (*fp_gtk_file_chooser_get_current_folder)
306                                                      (GtkFileChooser *chooser);
307static GSList* (*fp_gtk_file_chooser_get_filenames)(GtkFileChooser *chooser);
308static guint (*fp_gtk_g_slist_length)(GSList *list);
309static gulong (*fp_g_signal_connect_data)(gpointer instance,
310    const gchar *detailed_signal, GCallback c_handler, gpointer data,
311    GClosureNotify destroy_data, GConnectFlags connect_flags);
312static void (*fp_gtk_widget_show)(void *widget);
313static void (*fp_gtk_main)(void);
314static guint (*fp_gtk_main_level)(void);
315static gchar* (*fp_g_path_get_dirname) (const gchar *file_name);
316static XID (*fp_gdk_x11_drawable_get_xid) (GdkWindow *drawable);
317
318static GList* (*fp_g_list_append) (GList *list, gpointer data);
319static void (*fp_g_list_free) (GList *list);
320static void (*fp_g_list_free_full) (GList *list, GDestroyNotify free_func);
321
322static void (*fp_gdk_threads_enter)(void);
323static void (*fp_gdk_threads_leave)(void);
324
325static gboolean (*fp_gtk_show_uri)(GdkScreen *screen, const gchar *uri,
326    guint32 timestamp, GError **error);
327
328// Implementation functions prototypes
329static void gtk3_init(GtkApi* gtk);
330static GValue*      (*fp_g_value_init)(GValue *value, GType g_type);
331static gboolean     (*fp_g_type_is_a)(GType type, GType is_a_type);
332static gboolean     (*fp_g_value_get_boolean)(const GValue *value);
333static gchar        (*fp_g_value_get_char)(const GValue *value);
334static guchar       (*fp_g_value_get_uchar)(const GValue *value);
335static gint         (*fp_g_value_get_int)(const GValue *value);
336static guint        (*fp_g_value_get_uint)(const GValue *value);
337static glong        (*fp_g_value_get_long)(const GValue *value);
338static gulong       (*fp_g_value_get_ulong)(const GValue *value);
339static gint64       (*fp_g_value_get_int64)(const GValue *value);
340static guint64      (*fp_g_value_get_uint64)(const GValue *value);
341static gfloat       (*fp_g_value_get_float)(const GValue *value);
342static gdouble      (*fp_g_value_get_double)(const GValue *value);
343static const gchar* (*fp_g_value_get_string)(const GValue *value);
344static gint         (*fp_g_value_get_enum)(const GValue *value);
345static guint        (*fp_g_value_get_flags)(const GValue *value);
346static GParamSpec*  (*fp_g_value_get_param)(const GValue *value);
347static gpointer*    (*fp_g_value_get_boxed)(const GValue *value);
348static gpointer*    (*fp_g_value_get_pointer)(const GValue *value);
349static void         (*fp_g_object_get)(gpointer object,
350                                       const gchar* fpn, ...);
351static void         (*fp_g_object_set)(gpointer object,
352                                       const gchar *first_property_name,
353                                       ...);
354
355static gboolean (*fp_g_main_context_iteration)(GMainContext *context);
356static gboolean (*fp_g_str_has_prefix)(const gchar *str, const gchar *prefix);
357static gchar** (*fp_g_strsplit)(const gchar *string, const gchar *delimiter,
358           gint max_tokens);
359static void (*fp_g_strfreev)(gchar **str_array);
360
361
362static cairo_surface_t* (*fp_cairo_image_surface_create)(cairo_format_t format,
363                               int width, int height);
364static void (*fp_cairo_surface_destroy)(cairo_surface_t *surface);
365static cairo_t* (*fp_cairo_create)(cairo_surface_t *target);
366static void (*fp_cairo_destroy)(cairo_t *cr);
367static void (*fp_cairo_fill)(cairo_t *cr);
368static void (*fp_cairo_surface_flush)(cairo_surface_t *surface);
369static void (*fp_cairo_rectangle)(cairo_t *cr, double x, double y, double width,
370                double height);
371static void (*fp_cairo_set_source_rgb)(cairo_t *cr, double red, double green,
372                double blue);
373static void (*fp_cairo_set_source_rgba)(cairo_t *cr, double red, double green,
374                double blue, double alpha);
375static void (*fp_cairo_paint)(cairo_t *cr);
376static void (*fp_cairo_clip)(cairo_t *cr);
377static unsigned char* (*fp_cairo_image_surface_get_data)(
378                                                 cairo_surface_t *surface);
379static int (*fp_cairo_image_surface_get_stride) (cairo_surface_t *surface);
380static GdkPixbuf* (*fp_gdk_pixbuf_get_from_surface)(cairo_surface_t *surface,
381                            gint src_x, gint src_y, gint width, gint height);
382static GtkStateType (*fp_gtk_widget_get_state)(GtkWidget *widget);
383static void (*fp_gtk_widget_set_state)(GtkWidget *widget, GtkStateType state);
384static gboolean (*fp_gtk_widget_is_focus)(GtkWidget *widget);
385static void (*fp_gtk_widget_set_allocation)(GtkWidget *widget,
386                                            const GtkAllocation *allocation);
387static GtkWidget* (*fp_gtk_widget_get_parent)(GtkWidget *widget);
388static GtkStyleContext* (*fp_gtk_widget_get_style_context)(GtkWidget *widget);
389static void (*fp_gtk_style_context_get_color)(GtkStyleContext *context,
390                                           GtkStateFlags state, GdkRGBA *color);
391static void (*fp_gtk_style_context_get_background_color)
392                (GtkStyleContext *context, GtkStateFlags state, GdkRGBA *color);
393static void (*fp_gtk_style_context_get)(GtkStyleContext *context,
394                                                      GtkStateFlags state, ...);
395static GtkStateFlags (*fp_gtk_widget_get_state_flags)(GtkWidget* widget);
396static void (*fp_gtk_style_context_set_state)(GtkStyleContext* style,
397                                              GtkStateFlags flags);
398static void (*fp_gtk_style_context_add_class)(GtkStyleContext *context,
399                                                 const gchar *class_name);
400static void (*fp_gtk_style_context_save)(GtkStyleContext *context);
401static void (*fp_gtk_style_context_restore)(GtkStyleContext *context);
402static void (*fp_gtk_render_check)(GtkStyleContext *context, cairo_t *cr,
403                     gdouble x, gdouble y, gdouble width, gdouble height);
404static void (*fp_gtk_render_option)(GtkStyleContext *context, cairo_t *cr,
405                     gdouble x, gdouble y, gdouble width, gdouble height);
406static void (*fp_gtk_render_extension)(GtkStyleContext *context, cairo_t *cr,
407                     gdouble x, gdouble y, gdouble width, gdouble height,
408                     GtkPositionType gap_side);
409static void (*fp_gtk_render_expander)(GtkStyleContext *context, cairo_t *cr,
410                     gdouble x, gdouble y, gdouble width, gdouble height);
411static void (*fp_gtk_render_frame_gap)(GtkStyleContext *context, cairo_t *cr,
412                     gdouble x, gdouble y, gdouble width, gdouble height,
413                     GtkPositionType gap_side, gdouble xy0_gap,
414                     gdouble xy1_gap);
415static void (*fp_gtk_render_line)(GtkStyleContext *context, cairo_t *cr,
416                     gdouble x0, gdouble y0, gdouble x1, gdouble y1);
417static GdkPixbuf* (*fp_gtk_widget_render_icon_pixbuf)(GtkWidget *widget,
418                     const gchar *stock_id, GtkIconSize size);
419static cairo_surface_t* (*fp_gdk_window_create_similar_image_surface)(
420                     GdkWindow *window, cairo_format_t format, int width,
421                     int height, int scale);
422static cairo_surface_t* (*fp_gdk_window_create_similar_surface)(
423                     GdkWindow *window, cairo_format_t format,
424                     int width, int height);
425static GdkWindow* (*fp_gtk_widget_get_window)(GtkWidget *widget);
426static GtkSettings *(*fp_gtk_settings_get_for_screen)(GdkScreen *screen);
427static GdkScreen *(*fp_gtk_widget_get_screen)(GtkWidget *widget);
428static GtkStyleProvider* (*fp_gtk_css_provider_get_named)(const gchar *name,
429                     const gchar *variant);
430static void (*fp_gtk_style_context_add_provider)(GtkStyleContext *context,
431                     GtkStyleProvider *provider, guint priority);
432static void (*fp_gtk_render_frame)(GtkStyleContext *context,cairo_t *cr,
433                     gdouble x, gdouble y, gdouble width, gdouble height);
434static void (*fp_gtk_render_focus)(GtkStyleContext *context,cairo_t *cr,
435                     gdouble x, gdouble y, gdouble width, gdouble height);
436static void (*fp_gtk_render_handle)(GtkStyleContext *context,cairo_t *cr,
437                     gdouble x, gdouble y, gdouble width, gdouble height);
438static void (*fp_gtk_style_context_get_property)(GtkStyleContext *context,
439                     const gchar *property, GtkStateFlags state, GValue *value);
440static void (*fp_gtk_render_activity)(GtkStyleContext *context, cairo_t *cr,
441                     gdouble x, gdouble y, gdouble width, gdouble height);
442static void (*fp_gtk_render_background)(GtkStyleContext *context, cairo_t *cr,
443                     gdouble x, gdouble y, gdouble width, gdouble height);
444static gboolean (*fp_gtk_style_context_has_class)(GtkStyleContext *context,
445                     const gchar *class_name);
446static void transform_detail_string (const gchar *detail,
447                     GtkStyleContext *context);
448void (*fp_gtk_style_context_set_junction_sides)(GtkStyleContext  *context,
449                     GtkJunctionSides  sides);
450void (*fp_gtk_style_context_add_region)(GtkStyleContext *context,
451                     const gchar *region_name, GtkRegionFlags flags);
452void (*fp_gtk_render_arrow)(GtkStyleContext *context, cairo_t *cr,
453                     gdouble angle, gdouble x, gdouble y, gdouble size);
454void (*fp_gtk_bin_set_child)(GtkBin *bin, GtkWidget *widget);
455void (*fp_gtk_scrolled_window_set_shadow_type)(
456                     GtkScrolledWindow *scrolled_window, GtkShadowType type);
457static void (*fp_gtk_render_slider)(GtkStyleContext *context, cairo_t *cr,
458                     gdouble x, gdouble y, gdouble width, gdouble height,
459                     GtkOrientation orientation);
460static void (*fp_gtk_style_context_get_padding)(GtkStyleContext *self,
461                     GtkStateFlags state, GtkBorder* padding);
462static void (*fp_gtk_range_set_inverted)(GtkRange *range, gboolean  setting);
463static PangoFontDescription* (*fp_gtk_style_context_get_font)(
464                     GtkStyleContext *context, GtkStateFlags state);
465static int (*fp_gtk_widget_get_allocated_width)(GtkWidget *widget);
466static int (*fp_gtk_widget_get_allocated_height)(GtkWidget *widget);
467static GtkIconTheme* (*fp_gtk_icon_theme_get_default)(void);
468static GdkPixbuf* (*fp_gtk_icon_theme_load_icon)(GtkIconTheme *icon_theme,
469                     const gchar *icon_name, gint size,
470                     GtkIconLookupFlags flags, GError **error);
471static void (*fp_gtk_adjustment_set_lower)(GtkAdjustment *adjustment,
472                     gdouble lower);
473static void (*fp_gtk_adjustment_set_page_increment)(GtkAdjustment *adjustment,
474                     gdouble page_increment);
475static void (*fp_gtk_adjustment_set_page_size)(GtkAdjustment *adjustment,
476                     gdouble page_size);
477static void (*fp_gtk_adjustment_set_step_increment)(GtkAdjustment *adjustment,
478                     gdouble step_increment);
479static void (*fp_gtk_adjustment_set_upper)(GtkAdjustment *adjustment,
480                     gdouble upper);
481static void (*fp_gtk_adjustment_set_value)(GtkAdjustment *adjustment,
482                     gdouble value);
483static GdkGC *(*fp_gdk_gc_new)(GdkDrawable*);
484static void (*fp_gdk_rgb_gc_set_foreground)(GdkGC*, guint32);
485static void (*fp_gdk_draw_rectangle)(GdkDrawable*, GdkGC*, gboolean,
486        gint, gint, gint, gint);
487static GdkPixbuf *(*fp_gdk_pixbuf_new)(GdkColorspace colorspace,
488        gboolean has_alpha, int bits_per_sample, int width, int height);
489static void (*fp_gdk_drawable_get_size)(GdkDrawable *drawable,
490        gint* width, gint* height);
491static gboolean (*fp_gtk_init_check)(int* argc, char** argv);
492
493/* Widget creation */
494static GtkWidget* (*fp_gtk_arrow_new)(GtkArrowType arrow_type,
495                                      GtkShadowType shadow_type);
496static GtkWidget* (*fp_gtk_button_new)();
497static GtkWidget* (*fp_gtk_check_button_new)();
498static GtkWidget* (*fp_gtk_check_menu_item_new)();
499static GtkWidget* (*fp_gtk_color_selection_dialog_new)(const gchar* title);
500static GtkWidget* (*fp_gtk_combo_box_new)();
501static GtkWidget* (*fp_gtk_combo_box_entry_new)();
502static GtkWidget* (*fp_gtk_entry_new)();
503static GtkWidget* (*fp_gtk_fixed_new)();
504static GtkWidget* (*fp_gtk_handle_box_new)();
505static GtkWidget* (*fp_gtk_hpaned_new)();
506static GtkWidget* (*fp_gtk_vpaned_new)();
507static GtkWidget* (*fp_gtk_scale_new)(GtkOrientation  orientation,
508                                       GtkAdjustment* adjustment);
509static GtkWidget* (*fp_gtk_hscrollbar_new)(GtkAdjustment* adjustment);
510static GtkWidget* (*fp_gtk_vscrollbar_new)(GtkAdjustment* adjustment);
511static GtkWidget* (*fp_gtk_hseparator_new)();
512static GtkWidget* (*fp_gtk_vseparator_new)();
513static GtkWidget* (*fp_gtk_image_new)();
514static GtkWidget* (*fp_gtk_label_new)(const gchar* str);
515static GtkWidget* (*fp_gtk_menu_new)();
516static GtkWidget* (*fp_gtk_menu_bar_new)();
517static GtkWidget* (*fp_gtk_menu_item_new)();
518static GtkWidget* (*fp_gtk_notebook_new)();
519static GtkWidget* (*fp_gtk_progress_bar_new)();
520static GtkWidget* (*fp_gtk_progress_bar_set_orientation)(
521        GtkProgressBar *pbar,
522        GtkProgressBarOrientation orientation);
523static GtkWidget* (*fp_gtk_radio_button_new)(GSList *group);
524static GtkWidget* (*fp_gtk_radio_menu_item_new)(GSList *group);
525static GtkWidget* (*fp_gtk_scrolled_window_new)(GtkAdjustment *hadjustment,
526        GtkAdjustment *vadjustment);
527static GtkWidget* (*fp_gtk_separator_menu_item_new)();
528static GtkWidget* (*fp_gtk_separator_tool_item_new)();
529static GtkWidget* (*fp_gtk_text_view_new)();
530static GtkWidget* (*fp_gtk_toggle_button_new)();
531static GtkWidget* (*fp_gtk_toolbar_new)();
532static GtkWidget* (*fp_gtk_tree_view_new)();
533static GtkWidget* (*fp_gtk_viewport_new)(GtkAdjustment *hadjustment,
534        GtkAdjustment *vadjustment);
535static GtkWidget* (*fp_gtk_window_new)(GtkWindowType type);
536static GtkWidget* (*fp_gtk_dialog_new)();
537static GtkWidget* (*fp_gtk_spin_button_new)(GtkAdjustment *adjustment,
538        gdouble climb_rate, guint digits);
539static GtkWidget* (*fp_gtk_frame_new)(const gchar *label);
540
541/* Other widget operations */
542static GtkAdjustment* (*fp_gtk_adjustment_new)(gdouble value,
543        gdouble lower, gdouble upper, gdouble step_increment,
544        gdouble page_increment, gdouble page_size);
545static void (*fp_gtk_container_add)(GtkContainer *window, GtkWidget *widget);
546static void (*fp_gtk_menu_shell_append)(GtkMenuShell *menu_shell,
547        GtkWidget *child);
548static void (*fp_gtk_menu_item_set_submenu)(GtkMenuItem *menu_item,
549        GtkWidget *submenu);
550static void (*fp_gtk_widget_realize)(GtkWidget *widget);
551static GdkPixbuf* (*fp_gtk_widget_render_icon)(GtkWidget *widget,
552        const gchar *stock_id, GtkIconSize size, const gchar *detail);
553static void (*fp_gtk_widget_set_name)(GtkWidget *widget, const gchar *name);
554static void (*fp_gtk_widget_set_parent)(GtkWidget *widget, GtkWidget *parent);
555static void (*fp_gtk_widget_set_direction)(GtkWidget *widget,
556        GtkTextDirection direction);
557static void (*fp_gtk_widget_style_get)(GtkWidget *widget,
558        const gchar *first_property_name, ...);
559static void (*fp_gtk_widget_class_install_style_property)(
560        GtkWidgetClass* class, GParamSpec *pspec);
561static GParamSpec* (*fp_gtk_widget_class_find_style_property)(
562        GtkWidgetClass* class, const gchar* property_name);
563static void (*fp_gtk_widget_style_get_property)(GtkWidget* widget,
564        const gchar* property_name, GValue* value);
565static char* (*fp_pango_font_description_to_string)(
566        const PangoFontDescription* fd);
567static GtkSettings* (*fp_gtk_settings_get_default)();
568static GtkSettings* (*fp_gtk_widget_get_settings)(GtkWidget *widget);
569static GType        (*fp_gtk_border_get_type)();
570static void (*fp_gtk_arrow_set)(GtkWidget* arrow,
571                                GtkArrowType arrow_type,
572                                GtkShadowType shadow_type);
573static void (*fp_gtk_widget_size_request)(GtkWidget *widget,
574                                          GtkRequisition *requisition);
575static GtkAdjustment* (*fp_gtk_range_get_adjustment)(GtkRange* range);
576
577#endif /* !_GTK3_INTERFACE_H */
578