95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
/*
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* UAE - The Un*x Amiga Emulator
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*
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* Target-independent support for parsing hotkey sequences
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*
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* Copyright 2004 Richard Drummond
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*
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* Based on the hotkey handling previously found
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* in x11win.c and sdlgfx.c
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*/
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#include "sysconfig.h"
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#include "sysdeps.h"
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#include "options.h"
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#include "inputdevice.h"
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#include "hotkeys.h"
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static struct uae_hotkeyseq *hotkey_table;
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void set_default_hotkeys (struct uae_hotkeyseq *keys)
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{
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hotkey_table = keys;
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reset_hotkeys ();
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}
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void reset_hotkeys (void) {
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struct uae_hotkeyseq *seq = hotkey_table;
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int i;
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if (!seq)
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return;
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while (seq->event) {
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for (i=0; i < HOTKEYSEQ_MAXKEYS; i++)
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seq->key_pressed[i] = 0;
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seq->complete = 0;
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seq++;
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}
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}
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int match_hotkey_sequence (int key, int state)
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{
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struct uae_hotkeyseq *seq = hotkey_table;
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int event = 0;
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if (!seq)
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return 0;
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if (state) {
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/* Key down */
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while (seq->event != 0) {
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int i;
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/* Check whether key is the next key in this sequence */
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if (key == seq->keyseq[0])
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seq->key_pressed[0] = 1;
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for (i=1; i < HOTKEYSEQ_MAXKEYS; i++) {
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if ((seq->key_pressed[i-1] == 1) && (key == seq->keyseq[i])) {
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seq->key_pressed[i] = 1;
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/* Was it the final key in this sequence ? */
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if ((i+1 == HOTKEYSEQ_MAXKEYS) || (seq->keyseq[i+1] == (uae_u16)-1)) {
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/* Yes. Return the event */
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event = seq->event;
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seq->complete = 1;
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break;
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}
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}
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}
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seq++;
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}
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} else {
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/* key up */
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while (seq->event != 0) {
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int i, j;
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for (i = 0; i < HOTKEYSEQ_MAXKEYS; i++) {
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if ((key == seq->keyseq[i]) && (seq->key_pressed[i] == 1)) {
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/* letting up a key - cancels any keys following it
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* in the sequence that are pressed */
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for (j=i; j < HOTKEYSEQ_MAXKEYS; j++)
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seq->key_pressed[j] = 0;
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/* if it was previously complete generate return the event
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* (so that it can be used as a key-up event */
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if (seq->complete) {
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seq->complete = 0;
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event = seq->event;
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}
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}
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}
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seq++;
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}
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}
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return event;
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}
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