Author : chb, 30.Oct.1995
Docu : see kbmap.C
Purpose: class definitions for XKeyEvent keymap handling
- \* ======================================================================= */
+ \* ==================================================================== */
-#ifndef _KBMAP_H_
-#define _KBMAP_H_
+#ifndef KBMAP_H
+#define KBMAP_H
#ifdef __GNUG__
#pragma interface
#endif
-#include <X11/Xlib.h>
+#include <list>
+#include <boost/smart_ptr.hpp>
-#define KB_PREALLOC 16
-#define KB_HASHSIZE 128 // yes, yes - I know. 128 is not exactly prime :-)
-// ... but we are dealing with ASCII chars mostly.
+#include "LString.h"
-class kb_keymap;
class kb_sequence;
-class LString;
-
-///
-struct kb_key {
- /// Keysym
- unsigned int code;
-
- /// Modifier masks
- unsigned int mod;
-
- /// Keymap for prefix keys
- kb_keymap *table;
-
- /// Action for !prefix keys
- int action;
-};
-
/// Defines key maps and actions for key sequences
class kb_keymap {
public:
+ /** Bind a key-sequence to an action.
+ Returns 0 on success. Otherwise, position in string where
+ error occured. */
+ int bind(string const & seq, int action);
+
///
- kb_keymap() {
- size = 0;
- table = 0;
- }
- ///
- ~kb_keymap();
-
- /// Bind a key-sequence to an action
- /** Returns 0 on success. Otherwise, position in string where
- error occured. */
- int bind(char const* seq, int action);
-
- ///
- int print(char* buf, int maxlen) const;
+ void print(string & buf) const;
/// Look up a key in the keymap
- int lookup(KeySym key, unsigned mod, kb_sequence *seq);
+ int lookup(unsigned int key,
+ unsigned int mod, kb_sequence * seq) const;
/// Given an action, find all keybindings.
- LString findbinding(int action) const;
+ string const findbinding(int action,
+ string const & prefix = string()) const;
private:
- /// Define a new key sequence
- int defkey(kb_sequence *seq, int action, int idx = 0);
-
- /// Size of the table (<0: hashtab)
- int size;
-
- /// Holds the defined keys
- /** Both kinds of tables ends with NoSymbol */
- union
- {
- /// Table for linear array
- kb_key *table;
+ ///
+ struct kb_key {
+ /// Keysym
+ unsigned int code;
+
+ /// Modifier masks
+ unsigned int mod;
+
+ /// Keymap for prefix keys
+ boost::shared_ptr<kb_keymap> table;
- /// Hash table holding key lists
- kb_key **htable;
+ /// Action for !prefix keys
+ int action;
};
-};
-/// Holds a key sequence and the current and standard keymaps
-class kb_sequence {
-public:
+ /// Define a new key sequence
+ int defkey(kb_sequence * seq, int action, int idx = 0);
///
- kb_sequence() {
- stdmap = curmap = 0;
- sequence = staticseq;
- modifiers = staticmod;
- length = 0;
- size = KB_PREALLOC;
- }
+ static string const keyname(kb_key const & k);
///
-
-
+ static
+ void printKey(kb_key const & key, string & buf);
///
- ~kb_sequence()
- {
- if (sequence != staticseq) {
- delete sequence;
- delete modifiers;
- }
+ bool empty() const {
+ return table.empty();
}
-
- /// Add a key to the key sequence and look it up in the curmap
- /** Add a key to the key sequence and look it up in the curmap
- if the latter is defined. */
- int addkey(KeySym key, unsigned mod, unsigned nmod = 0);
-
- ///
- int print(char *buf, int maxlen, bool when_defined = false) const; //RVDK_PATCH_5
-
- ///
- int printOptions(char *buf, int maxlen) const;
-
- /// Make length negative to mark the sequence as deleted
- void delseq();
-
- ///
- char getiso();
-
///
- KeySym getsym();
-
- ///
- void reset();
-
+ typedef std::list<kb_key> Table;
///
- int parse(char const *s);
-
- /// Keymap to use if a new sequence is starting
- kb_keymap *stdmap;
-
- /// Keymap to use for the next key
- kb_keymap *curmap;
-
- /// Array holding the current key sequence
- /** If sequence[length-1] < 0xff it can be used as ISO8859 char */
- unsigned int *sequence;
-
- ///
- unsigned int *modifiers;
-
- /// Current length of key sequence
- int length;
-
-private:
- /// Static array preallocated for sequence
- unsigned int staticseq[KB_PREALLOC];
-
- ///
- unsigned int staticmod[KB_PREALLOC];
-
- /// Physically allocated storage size
- int size;
+ Table table;
};
#endif