00001 /*--------------------------------------------------------------------
00002 * binding.h
00003 *
00004 * A "binding" is a function callback that is attached to a user event.
00005 * It can be attached to a menu item, user selection, invocation, etc.
00006 *
00007 * The callback function can be in several forms - tcl/tk command,
00008 * "bfun" or "bfun2" functions (defined in binding.h). The function
00009 * parameters are a "event" object, and one or two client data. The
00010 * "event" object contains context information of the event that invoked
00011 * the binding.
00012 *
00013 */
00014
00015 #ifndef BINDING_H
00016 #define BINDING_H
00017
00018 #include "event.h"
00019 //#include <sty.h>
00020 #include "common/suif_list.h"
00021
00022 class vnode;
00023
00024 typedef void (*bfun)(const event &e, void *client_data);
00025 typedef void (*bfun2)(const event &e, void *client_data1, void *client_data2);
00026
00027 class binding {
00028 private:
00029 char *tcl_command;
00030 bfun function;
00031
00032 int num_client_data;
00033 void *client_data1;
00034 void *client_data2;
00035
00036 public:
00037 binding(void);
00038 binding(bfun f, void *data = 0);
00039 binding(bfun2 f, void *data1, void *data2);
00040
00041 ~binding(void);
00042
00043 void set_tcl_command(char *s, void *data = 0) {
00044 tcl_command = s;
00045 client_data1 = data;
00046 num_client_data = 1;
00047 }
00048 void set_tcl_command(char *s, void *data1, void *data2) {
00049 tcl_command = s;
00050 client_data1 = data1;
00051 client_data2 = data2;
00052 num_client_data = 2;
00053 }
00054 void set_function(bfun f, void *data = 0) {
00055 function = f;
00056 client_data1 = data;
00057 num_client_data = 1;
00058 };
00059 void set_function(bfun2 f, void *data1, void *data2) {
00060 function = (bfun) f;
00061 client_data1 = data1;
00062 client_data2 = data2;
00063 num_client_data = 2;
00064 };
00065
00066 /* invoke */
00067 void invoke(const event &e);
00068 };
00069
00070
00071 //typedef slist_tos<binding*> binding_list;
00072 typedef list<binding*> binding_list;
00073
00074 void delete_bindings(binding_list *bindings);
00075
00076 #endif
