src/gtkutil.h

   1 /* Definitions and headers for GTK widgets.
   2
   3 Copyright (C) 2003-2015 Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef GTKUTIL_H
  21 #define GTKUTIL_H
  22
  23
  24 #ifdef USE_GTK
  25
  26 #include <gtk/gtk.h>
  27 #include "../lwlib/lwlib-widget.h"
  28 #include "frame.h"
  29 #include "xterm.h"
  30
  31 /* Minimum and maximum values used for GTK scroll bars  */
  32
  33 #define XG_SB_MIN 1
  34 #define XG_SB_MAX 10000000
  35 #define XG_SB_RANGE (XG_SB_MAX-XG_SB_MIN)
  36 #define YG_SB_MIN 1
  37 #define YG_SB_MAX 10000000
  38 #define YG_SB_RANGE (YG_SB_MAX-YG_SB_MIN)
  39
  40 /* Key for data that is valid for menus and scroll bars in a frame  */
  41 #define XG_FRAME_DATA "emacs_frame"
  42
  43 /* Key for data that menu items hold.  */
  44 #define XG_ITEM_DATA "emacs_menuitem"
  45
  46 /* This is a list node in a generic list implementation.  */
  47 typedef struct xg_list_node_
  48 {
  49   struct xg_list_node_ *prev;
  50   struct xg_list_node_ *next;
  51 } xg_list_node;
  52
  53 /* This structure is the callback data that is shared for menu items.
  54    We need to keep it separate from the frame structure due to
  55    detachable menus.  The data in the frame structure is only valid while
  56    the menu is popped up.  This structure is kept around as long as
  57    the menu is.  */
  58 typedef struct xg_menu_cb_data_
  59 {
  60   xg_list_node  ptrs;
  61
  62   struct frame  *f;
  63   Lisp_Object   menu_bar_vector;
  64   int           menu_bar_items_used;
  65   GCallback     highlight_cb;
  66   int           ref_count;
  67 } xg_menu_cb_data;
  68
  69 /* This structure holds callback information for each individual menu item.  */
  70 typedef struct xg_menu_item_cb_data_
  71 {
  72   xg_list_node  ptrs;
  73
  74   gulong        select_id;
  75   Lisp_Object   help;
  76   gpointer      call_data;
  77   xg_menu_cb_data *cl_data;
  78
  79 } xg_menu_item_cb_data;
  80
  81 extern bool xg_uses_old_file_dialog (void);
  82
  83 extern char *xg_get_file_name (struct frame *f,
  84                                char *prompt,
  85                                char *default_filename,
  86                                bool mustmatch_p,
  87                                bool only_dir_p);
  88
  89 extern Lisp_Object xg_get_font (struct frame *f, const char *);
  90
  91 extern GtkWidget *xg_create_widget (const char *type,
  92                                     const char *name,
  93                                     struct frame *f,
  94                                     struct _widget_value *val,
  95                                     GCallback select_cb,
  96                                     GCallback deactivate_cb,
  97                                     GCallback highlight_cb);
  98
  99 extern void xg_modify_menubar_widgets (GtkWidget *menubar,
 100                                        struct frame *f,
 101                                        struct _widget_value *val,
 102                                        bool deep_p,
 103                                        GCallback select_cb,
 104                                        GCallback deactivate_cb,
 105                                        GCallback highlight_cb);
 106
 107 extern void xg_update_frame_menubar (struct frame *f);
 108
 109 extern bool xg_event_is_for_menubar (struct frame *, const XEvent *);
 110
 111 extern ptrdiff_t xg_get_scroll_id_for_window (Display *dpy, Window wid);
 112
 113 extern void xg_create_scroll_bar (struct frame *f,
 114                                   struct scroll_bar *bar,
 115                                   GCallback scroll_callback,
 116                                   GCallback end_callback,
 117                                   const char *scroll_bar_name);
 118 extern void xg_create_horizontal_scroll_bar (struct frame *f,
 119                                              struct scroll_bar *bar,
 120                                              GCallback scroll_callback,
 121                                              GCallback end_callback,
 122                                              const char *scroll_bar_name);
 123 extern void xg_remove_scroll_bar (struct frame *f, ptrdiff_t scrollbar_id);
 124
 125 extern void xg_update_scrollbar_pos (struct frame *f,
 126                                      ptrdiff_t scrollbar_id,
 127                                      int top,
 128                                      int left,
 129                                      int width,
 130                                      int height);
 131 extern void xg_update_horizontal_scrollbar_pos (struct frame *f,
 132                                                 ptrdiff_t scrollbar_id,
 133                                                 int top,
 134                                                 int left,
 135                                                 int width,
 136                                                 int height);
 137
 138 extern void xg_set_toolkit_scroll_bar_thumb (struct scroll_bar *bar,
 139                                              int portion,
 140                                              int position,
 141                                              int whole);
 142 extern void xg_set_toolkit_horizontal_scroll_bar_thumb (struct scroll_bar *bar,
 143                                                         int portion,
 144                                                         int position,
 145                                                         int whole);
 146 extern bool xg_event_is_for_scrollbar (struct frame *, const XEvent *);
 147 extern int xg_get_default_scrollbar_width (void);
 148 extern int xg_get_default_scrollbar_height (void);
 149
 150 extern void update_frame_tool_bar (struct frame *f);
 151 extern void free_frame_tool_bar (struct frame *f);
 152 extern void xg_change_toolbar_position (struct frame *f, Lisp_Object pos);
 153
 154 extern void xg_clear_under_internal_border (struct frame *f);
 155 extern void xg_frame_resized (struct frame *f,
 156                               int pixelwidth,
 157                               int pixelheight);
 158 extern void xg_frame_set_char_size (struct frame *f, int width, int height);
 159 extern GtkWidget * xg_win_to_widget (Display *dpy, Window wdesc);
 160
 161 extern void xg_display_open (char *display_name, Display **dpy);
 162 extern void xg_display_close (Display *dpy);
 163 extern GdkCursor * xg_create_default_cursor (Display *dpy);
 164
 165 extern bool xg_create_frame_widgets (struct frame *f);
 166 extern void xg_free_frame_widgets (struct frame *f);
 167 extern void xg_set_background_color (struct frame *f, unsigned long bg);
 168 extern bool xg_check_special_colors (struct frame *f,
 169                                      const char *color_name,
 170                                      XColor *color);
 171
 172 extern void xg_set_frame_icon (struct frame *f,
 173                                Pixmap icon_pixmap,
 174                                Pixmap icon_mask);
 175
 176 extern bool xg_prepare_tooltip (struct frame *f,
 177                                 Lisp_Object string,
 178                                 int *width,
 179                                 int *height);
 180 extern void xg_show_tooltip (struct frame *f, int root_x, int root_y);
 181 extern bool xg_hide_tooltip (struct frame *f);
 182
 183 /* Mark all callback data that are Lisp_object:s during GC.  */
 184 extern void xg_mark_data (void);
 185
 186 /* Initialize GTK specific parts.  */
 187 extern void xg_initialize (void);
 188
 189 /* Setting scrollbar values invokes the callback.  Use this variable
 190    to indicate that the callback should do nothing.  */
 191 extern bool xg_ignore_gtk_scrollbar;
 192
 193 #endif /* USE_GTK */
 194 #endif /* GTKUTIL_H */