src/gtkutil.h

   1 /* Definitions and headers for GTK widgets.
   2
   3 Copyright (C) 2003-2014 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 "frame.h"
  28 #include "xterm.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 and scroll bars in a frame  */
  37 #define XG_FRAME_DATA "emacs_frame"
  38
  39 /* Key for data that menu items hold.  */
  40 #define XG_ITEM_DATA "emacs_menuitem"
  41
  42 /* This is a list node in a generic list implementation.  */
  43 typedef struct xg_list_node_
  44 {
  45   struct xg_list_node_ *prev;
  46   struct xg_list_node_ *next;
  47 } xg_list_node;
  48
  49 /* This structure is the callback data that is shared for menu items.
  50    We need to keep it separate from the frame structure due to
  51    detachable menus.  The data in the frame structure is only valid while
  52    the menu is popped up.  This structure is kept around as long as
  53    the menu is.  */
  54 typedef struct xg_menu_cb_data_
  55 {
  56   xg_list_node  ptrs;
  57
  58   struct frame  *f;
  59   Lisp_Object   menu_bar_vector;
  60   int           menu_bar_items_used;
  61   GCallback     highlight_cb;
  62   int           ref_count;
  63 } xg_menu_cb_data;
  64
  65 /* This structure holds callback information for each individual menu item.  */
  66 typedef struct xg_menu_item_cb_data_
  67 {
  68   xg_list_node  ptrs;
  69
  70   gulong        select_id;
  71   Lisp_Object   help;
  72   gpointer      call_data;
  73   xg_menu_cb_data *cl_data;
  74
  75 } xg_menu_item_cb_data;
  76
  77 extern struct _widget_value *malloc_widget_value (void);
  78 extern void free_widget_value (struct _widget_value *);
  79
  80 extern bool xg_uses_old_file_dialog (void) ATTRIBUTE_CONST;
  81
  82 extern char *xg_get_file_name (struct frame *f,
  83                                char *prompt,
  84                                char *default_filename,
  85                                bool mustmatch_p,
  86                                bool only_dir_p);
  87
  88 extern Lisp_Object xg_get_font (struct frame *f, const char *);
  89
  90 extern GtkWidget *xg_create_widget (const char *type,
  91                                     const char *name,
  92                                     struct frame *f,
  93                                     struct _widget_value *val,
  94                                     GCallback select_cb,
  95                                     GCallback deactivate_cb,
  96                                     GCallback highlight_cb);
  97
  98 extern void xg_modify_menubar_widgets (GtkWidget *menubar,
  99                                        struct frame *f,
 100                                        struct _widget_value *val,
 101                                        bool deep_p,
 102                                        GCallback select_cb,
 103                                        GCallback deactivate_cb,
 104                                        GCallback highlight_cb);
 105
 106 extern void xg_update_frame_menubar (struct frame *f);
 107
 108 extern bool xg_event_is_for_menubar (struct frame *, const XEvent *);
 109
 110 extern bool xg_have_tear_offs (void);
 111
 112 extern ptrdiff_t xg_get_scroll_id_for_window (Display *dpy, Window wid);
 113
 114 extern void xg_create_scroll_bar (struct frame *f,
 115                                   struct scroll_bar *bar,
 116                                   GCallback scroll_callback,
 117                                   GCallback end_callback,
 118                                   const char *scroll_bar_name);
 119 extern void xg_remove_scroll_bar (struct frame *f, ptrdiff_t scrollbar_id);
 120
 121 extern void xg_update_scrollbar_pos (struct frame *f,
 122                                      ptrdiff_t scrollbar_id,
 123                                      int top,
 124                                      int left,
 125                                      int width,
 126                                      int height);
 127
 128 extern void xg_set_toolkit_scroll_bar_thumb (struct scroll_bar *bar,
 129                                              int portion,
 130                                              int position,
 131                                              int whole);
 132 extern bool xg_event_is_for_scrollbar (struct frame *, const XEvent *);
 133 extern int xg_get_default_scrollbar_width (void);
 134
 135 extern void update_frame_tool_bar (struct frame *f);
 136 extern void free_frame_tool_bar (struct frame *f);
 137 extern void xg_change_toolbar_position (struct frame *f, Lisp_Object pos);
 138
 139 extern void xg_frame_resized (struct frame *f,
 140                               int pixelwidth,
 141                               int pixelheight);
 142 extern void xg_frame_set_char_size (struct frame *f, int width, int height);
 143 extern GtkWidget * xg_win_to_widget (Display *dpy, Window wdesc);
 144
 145 extern void xg_display_open (char *display_name, Display **dpy);
 146 extern void xg_display_close (Display *dpy);
 147 extern GdkCursor * xg_create_default_cursor (Display *dpy);
 148
 149 extern bool xg_create_frame_widgets (struct frame *f);
 150 extern void xg_free_frame_widgets (struct frame *f);
 151 extern void xg_set_background_color (struct frame *f, unsigned long bg);
 152 extern bool xg_check_special_colors (struct frame *f,
 153                                      const char *color_name,
 154                                      XColor *color);
 155
 156 extern void xg_set_frame_icon (struct frame *f,
 157                                Pixmap icon_pixmap,
 158                                Pixmap icon_mask);
 159
 160 extern bool xg_prepare_tooltip (struct frame *f,
 161                                 Lisp_Object string,
 162                                 int *width,
 163                                 int *height);
 164 extern void xg_show_tooltip (struct frame *f, int root_x, int root_y);
 165 extern bool xg_hide_tooltip (struct frame *f);
 166
 167
 168 /* Mark all callback data that are Lisp_object:s during GC.  */
 169 extern void xg_mark_data (void);
 170
 171 /* Initialize GTK specific parts.  */
 172 extern void xg_initialize (void);
 173
 174 /* Setting scrollbar values invokes the callback.  Use this variable
 175    to indicate that the callback should do nothing.  */
 176 extern bool xg_ignore_gtk_scrollbar;
 177
 178 #endif /* USE_GTK */
 179 #endif /* GTKUTIL_H */