Pileus Git - ~andy/gtk/blob - gtk/gtkwidgetprivate.h

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /*
  19  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  20  * file for a list of people on the GTK+ Team.  See the ChangeLog
  21  * files for a list of changes.  These files are distributed with
  22  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  23  */
  24
  25 #ifndef __GTK_WIDGET_PRIVATE_H__
  26 #define __GTK_WIDGET_PRIVATE_H__
  27
  28 #include "gtkcsstypesprivate.h"
  29 #include "gtkwidget.h"
  30
  31 G_BEGIN_DECLS
  32
  33 /* Cache as many ranges of height-for-width
  34  * (or width-for-height) as can be rational
  35  * for a said widget to have, if a label can
  36  * only wrap to 3 lines, only 3 caches will
  37  * ever be allocated for it.
  38  */
  39 #define GTK_SIZE_REQUEST_CACHED_SIZES   (5)
  40
  41 typedef struct {
  42   gint minimum_size;
  43   gint natural_size;
  44 } CachedSize;
  45
  46 typedef struct
  47 {
  48   gint       lower_for_size; /* The minimum for_size with the same result */
  49   gint       upper_for_size; /* The maximum for_size with the same result */
  50   CachedSize cached_size;
  51 } SizeRequest;
  52
  53 typedef struct {
  54   SizeRequest **widths;
  55   SizeRequest **heights;
  56
  57   CachedSize  cached_width;
  58   CachedSize  cached_height;
  59
  60   guint       cached_widths      : 3;
  61   guint       cached_heights     : 3;
  62   guint       last_cached_width  : 3;
  63   guint       last_cached_height : 3;
  64   guint       cached_base_width  : 1;
  65   guint       cached_base_height : 1;
  66 } SizeRequestCache;
  67
  68 void         _gtk_widget_set_visible_flag   (GtkWidget *widget,
  69                                              gboolean   visible);
  70 gboolean     _gtk_widget_get_in_reparent    (GtkWidget *widget);
  71 void         _gtk_widget_set_in_reparent    (GtkWidget *widget,
  72                                              gboolean   in_reparent);
  73 gboolean     _gtk_widget_get_anchored       (GtkWidget *widget);
  74 void         _gtk_widget_set_anchored       (GtkWidget *widget,
  75                                              gboolean   anchored);
  76 gboolean     _gtk_widget_get_shadowed       (GtkWidget *widget);
  77 void         _gtk_widget_set_shadowed       (GtkWidget *widget,
  78                                              gboolean   shadowed);
  79 gboolean     _gtk_widget_get_alloc_needed   (GtkWidget *widget);
  80 void         _gtk_widget_set_alloc_needed   (GtkWidget *widget,
  81                                              gboolean   alloc_needed);
  82 gboolean     _gtk_widget_get_width_request_needed  (GtkWidget *widget);
  83 void         _gtk_widget_set_width_request_needed  (GtkWidget *widget,
  84                                                     gboolean   width_request_needed);
  85 gboolean     _gtk_widget_get_height_request_needed (GtkWidget *widget);
  86 void         _gtk_widget_set_height_request_needed (GtkWidget *widget,
  87                                                     gboolean   height_request_needed);
  88
  89 gboolean     _gtk_widget_get_sizegroup_visited (GtkWidget    *widget);
  90 void         _gtk_widget_set_sizegroup_visited (GtkWidget    *widget,
  91                                                 gboolean      visited);
  92 gboolean     _gtk_widget_get_sizegroup_bumping (GtkWidget    *widget);
  93 void         _gtk_widget_set_sizegroup_bumping (GtkWidget    *widget,
  94                                                 gboolean      bumping);
  95 void         _gtk_widget_add_sizegroup         (GtkWidget    *widget,
  96                                                 gpointer      group);
  97 void         _gtk_widget_remove_sizegroup      (GtkWidget    *widget,
  98                                                 gpointer      group);
  99 GSList      *_gtk_widget_get_sizegroups        (GtkWidget    *widget);
 100
 101 void         _gtk_widget_add_attached_window    (GtkWidget    *widget,
 102                                                  GtkWindow    *window);
 103 void         _gtk_widget_remove_attached_window (GtkWidget    *widget,
 104                                                  GtkWindow    *window);
 105
 106 void _gtk_widget_override_size_request (GtkWidget *widget,
 107                                         int        width,
 108                                         int        height,
 109                                         int       *old_width,
 110                                         int       *old_height);
 111 void _gtk_widget_restore_size_request  (GtkWidget *widget,
 112                                         int        old_width,
 113                                         int        old_height);
 114
 115 gboolean _gtk_widget_get_translation_to_window (GtkWidget      *widget,
 116                                                 GdkWindow      *window,
 117                                                 int            *x,
 118                                                 int            *y);
 119 void     _gtk_widget_free_cached_sizes (GtkWidget *widget);
 120
 121 const gchar*      _gtk_widget_get_accel_path               (GtkWidget *widget,
 122                                                             gboolean  *locked);
 123
 124 AtkObject *       _gtk_widget_peek_accessible              (GtkWidget *widget);
 125
 126 GdkEventExpose *  _gtk_cairo_get_event                     (cairo_t *cr);
 127
 128 void              _gtk_widget_draw_internal                (GtkWidget *widget,
 129                                                             cairo_t   *cr,
 130                                                             gboolean   clip_to_size);
 131 void              _gtk_widget_set_has_default              (GtkWidget *widget,
 132                                                             gboolean   has_default);
 133 void              _gtk_widget_set_has_grab                 (GtkWidget *widget,
 134                                                             gboolean   has_grab);
 135 void              _gtk_widget_set_is_toplevel              (GtkWidget *widget,
 136                                                             gboolean   is_toplevel);
 137
 138 void              _gtk_widget_grab_notify                  (GtkWidget *widget,
 139                                                             gboolean   was_grabbed);
 140
 141 void              _gtk_widget_propagate_hierarchy_changed  (GtkWidget *widget,
 142                                                             GtkWidget *previous_toplevel);
 143 void              _gtk_widget_propagate_screen_changed     (GtkWidget *widget,
 144                                                             GdkScreen *previous_screen);
 145 void              _gtk_widget_propagate_composited_changed (GtkWidget *widget);
 146
 147 void              _gtk_widget_set_device_window            (GtkWidget *widget,
 148                                                             GdkDevice *device,
 149                                                             GdkWindow *pointer_window);
 150 GdkWindow *       _gtk_widget_get_device_window            (GtkWidget *widget,
 151                                                             GdkDevice *device);
 152 GList *           _gtk_widget_list_devices                 (GtkWidget *widget);
 153
 154 void              _gtk_widget_synthesize_crossing          (GtkWidget       *from,
 155                                                             GtkWidget       *to,
 156                                                             GdkDevice       *device,
 157                                                             GdkCrossingMode  mode);
 158
 159 gpointer          _gtk_widget_peek_request_cache           (GtkWidget *widget);
 160
 161 void              _gtk_widget_buildable_finish_accelerator (GtkWidget *widget,
 162                                                             GtkWidget *toplevel,
 163                                                             gpointer   user_data);
 164 GtkStyle *        _gtk_widget_get_style                    (GtkWidget *widget);
 165 void              _gtk_widget_set_style                    (GtkWidget *widget,
 166                                                             GtkStyle  *style);
 167
 168 typedef gboolean (*GtkCapturedEventHandler) (GtkWidget *widget, GdkEvent *event);
 169
 170 void              _gtk_widget_set_captured_event_handler (GtkWidget               *widget,
 171                                                           GtkCapturedEventHandler  handler);
 172
 173 gboolean          _gtk_widget_captured_event               (GtkWidget *widget,
 174                                                             GdkEvent  *event);
 175
 176 GtkWidgetPath *   _gtk_widget_create_path                  (GtkWidget    *widget);
 177 void              _gtk_widget_invalidate_style_context     (GtkWidget    *widget,
 178                                                             GtkCssChange  change);
 179 void              _gtk_widget_style_context_invalidated    (GtkWidget    *widget);
 180
 181 G_END_DECLS
 182
 183 #endif /* __GTK_WIDGET_PRIVATE_H__ */