src/gtkutil.h

   1 /* Definitions and headers for GTK widgets.
   2    Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19 Boston, MA 02110-1301, USA.  */
  20
  21 #ifndef GTKUTIL_H
  22 #define GTKUTIL_H
  23
  24
  25 #ifdef USE_GTK
  26
  27 #include <gtk/gtk.h>
  28 #include "frame.h"
  29
  30 /* Minimum and maximum values used for GTK scroll bars  */
  31
  32 #define XG_SB_MIN 1
  33 #define XG_SB_MAX 10000000
  34 #define XG_SB_RANGE (XG_SB_MAX-XG_SB_MIN)
  35
  36 /* Key for data that is valid for menus in a frame  */
  37 #define XG_FRAME_DATA "emacs_frame"
  38
  39 /* Key for data that is the last scrollbar value  */
  40 #define XG_LAST_SB_DATA "emacs_last_sb_value"
  41
  42 /* Key for data that menu items hold.  */
  43 #define XG_ITEM_DATA "emacs_menuitem"
  44
  45
  46 /* Button types in menus.  */
  47 enum button_type
  48 {
  49   BUTTON_TYPE_NONE,
  50   BUTTON_TYPE_TOGGLE,
  51   BUTTON_TYPE_RADIO
  52 };
  53
  54 /* This is a list node in a generic list implementation.  */
  55 typedef struct xg_list_node_
  56 {
  57   struct xg_list_node_ *prev;
  58   struct xg_list_node_ *next;
  59 } xg_list_node;
  60
  61 /* This structure is the callback data that is shared for menu items.
  62    We need to keep it separate from the frame structure due to
  63    detachable menus.  The data in the frame structure is only valid while
  64    the menu is popped up.  This structure is kept around as long as
  65    the menu is.  */
  66 typedef struct xg_menu_cb_data_
  67 {
  68   xg_list_node  ptrs;
  69
  70   FRAME_PTR     f;
  71   Lisp_Object   menu_bar_vector;
  72   int           menu_bar_items_used;
  73   GCallback     highlight_cb;
  74   int           ref_count;
  75 } xg_menu_cb_data;
  76
  77 /* This structure holds callback information for each individual menu item.  */
  78 typedef struct xg_menu_item_cb_data_
  79 {
  80   xg_list_node  ptrs;
  81
  82   gulong        select_id;
  83   Lisp_Object   help;
  84   gpointer      call_data;
  85   xg_menu_cb_data *cl_data;
  86
  87 } xg_menu_item_cb_data;
  88
  89
  90 /* Used to specify menus and dialogs.
  91    This is an adaption from lwlib for Gtk so we can use more of the same
  92    code as lwlib in xmenu.c.  */
  93 typedef struct _widget_value
  94 {
  95   /* name of widget */
  96   Lisp_Object   lname;
  97   char          *name;
  98   /* value (meaning depend on widget type) */
  99   char          *value;
 100   /* keyboard equivalent. no implications for XtTranslations */
 101   Lisp_Object   lkey;
 102   char          *key;
 103   /* Help string or nil if none.
 104      GC finds this string through the frame's menu_bar_vector
 105      or through menu_items.  */
 106   Lisp_Object   help;
 107   /* true if enabled */
 108   gint          enabled;
 109   /* true if selected */
 110   gint  selected;
 111   /* The type of a button.  */
 112   enum button_type button_type;
 113   /* Contents of the sub-widgets, also selected slot for checkbox */
 114   struct _widget_value  *contents;
 115   /* data passed to callback */
 116   gpointer      call_data;
 117   /* next one in the list */
 118   struct _widget_value  *next;
 119
 120   /* we resource the widget_value structures; this points to the next
 121      one on the free list if this one has been deallocated.
 122    */
 123   struct _widget_value *free_list;
 124 } widget_value;
 125
 126 #ifdef HAVE_GTK_FILE_BOTH
 127 extern int use_old_gtk_file_dialog;
 128 #endif
 129
 130 extern widget_value *malloc_widget_value P_ ((void));
 131 extern void free_widget_value P_ ((widget_value *));
 132
 133 extern int xg_uses_old_file_dialog P_ ((void));
 134
 135 extern char *xg_get_file_name P_ ((FRAME_PTR f,
 136                                    char *prompt,
 137                                    char *default_filename,
 138                                    int mustmatch_p,
 139                                    int only_dir_p));
 140
 141 extern GtkWidget *xg_create_widget P_ ((char *type,
 142                                         char *name,
 143                                         FRAME_PTR f,
 144                                         widget_value *val,
 145                                         GCallback select_cb,
 146                                         GCallback deactivate_cb,
 147                                         GCallback hightlight_cb));
 148
 149 extern void xg_modify_menubar_widgets P_ ((GtkWidget *menubar,
 150                                            FRAME_PTR f,
 151                                            widget_value *val,
 152                                            int deep_p,
 153                                            GCallback select_cb,
 154                                            GCallback deactivate_cb,
 155                                            GCallback hightlight_cb));
 156
 157 extern int xg_update_frame_menubar P_ ((FRAME_PTR f));
 158
 159 extern int xg_have_tear_offs P_ ((void));
 160
 161 extern int xg_get_scroll_id_for_window P_ ((Display *dpy, Window wid));
 162
 163 extern void xg_create_scroll_bar P_ ((FRAME_PTR f,
 164                                       struct scroll_bar *bar,
 165                                       GCallback scroll_callback,
 166                                       char *scroll_bar_name));
 167 extern void xg_show_scroll_bar P_ ((int scrollbar_id));
 168 extern void xg_remove_scroll_bar P_ ((FRAME_PTR f, int scrollbar_id));
 169
 170 extern void xg_update_scrollbar_pos P_ ((FRAME_PTR f,
 171                                          int scrollbar_id,
 172                                          int top,
 173                                          int left,
 174                                          int width,
 175                                          int height));
 176
 177 extern void xg_set_toolkit_scroll_bar_thumb P_ ((struct scroll_bar *bar,
 178                                                  int portion,
 179                                                  int position,
 180                                                  int whole));
 181
 182
 183 extern void update_frame_tool_bar P_ ((FRAME_PTR f));
 184 extern void free_frame_tool_bar P_ ((FRAME_PTR f));
 185
 186 extern void xg_resize_widgets P_ ((FRAME_PTR f,
 187                                    int pixelwidth,
 188                                    int pixelheight));
 189 extern void xg_frame_set_char_size P_ ((FRAME_PTR f, int cols, int rows));
 190 extern GtkWidget * xg_win_to_widget P_ ((Display *dpy, Window wdesc));
 191
 192 extern int xg_display_open P_ ((char *display_name, Display **dpy));
 193 extern void xg_display_close P_ ((Display *dpy));
 194 extern GdkCursor * xg_create_default_cursor P_ ((Display *dpy));
 195
 196 extern int xg_create_frame_widgets P_ ((FRAME_PTR f));
 197 extern void x_wm_set_size_hint P_ ((FRAME_PTR f,
 198                                     long flags,
 199                                     int user_position));
 200 extern void xg_set_background_color P_ ((FRAME_PTR f, unsigned long bg));
 201
 202 extern void xg_set_frame_icon P_ ((FRAME_PTR f,
 203                                    Pixmap icon_pixmap,
 204                                    Pixmap icon_mask));
 205
 206 /* Mark all callback data that are Lisp_object:s during GC.  */
 207 extern void xg_mark_data P_ ((void));
 208
 209 /* Initialize GTK specific parts.  */
 210 extern void xg_initialize P_ ((void));
 211
 212 /* Setting scrollbar values invokes the callback.  Use this variable
 213    to indicate that the callback should do nothing.  */
 214 extern int xg_ignore_gtk_scrollbar;
 215
 216 #endif /* USE_GTK */
 217 #endif /* GTKUTIL_H */
 218
 219 /* arch-tag: 0757f3dc-00c7-4cee-9e4c-282cf1d34c72
 220    (do not change this comment) */