ppokorny
877d8ac8e8
Fixed lots of small problems in various places. Added new protocol commands screen_add/del_key so screens can request keystrokes when they are being displayed. Lots of work on CPU GRAPH and BIG NUMBER CLOCK screens. Fixed 'output' function in MtxOrb.c
136 lines
2.9 KiB
C
136 lines
2.9 KiB
C
/*
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input.c
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Handles keypad (and other?) input from the user.
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Currently, the keys are as follows:
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Context Key Function
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------- --- --------
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Normal "normal" context is handled in this source file.
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A Pause/Continue
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B Back(Go to previous screen)
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C Forward(Go to next screen)
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D Open main menu
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E-Z Sent to client, if any; ignored otherwise
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(menu keys are not handled here, but in the menu code)
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Menu
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A Enter/select
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B Up/Left
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C Down/Right
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D Exit/Cancel
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E-Z Ignored
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "../shared/sockets.h"
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#include "../shared/debug.h"
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#include "drivers/lcd.h"
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#include "client_data.h"
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#include "clients.h"
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#include "screen.h"
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#include "widget.h"
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#include "screenlist.h"
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#include "menus.h"
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#include "input.h"
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int server_input (int key);
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// FIXME! The server tends to crash when "E" is pressed.. (?!)
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// (but only when the joystick driver is the last one on the list...)
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// Checks for keypad input, and dispatches it
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int
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handle_input ()
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{
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char str[256];
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int key;
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screen *s;
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widget *w;
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client *c;
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key = lcd.getkey ();
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if (!key)
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return 0;
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debug ("handle_input(%c)\n", (char) key);
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if (key) {
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// TODO: Interpret and translate keys!
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// Give current screen a shot at the key first
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s = screenlist_current ();
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w = widget_find( s, KEYS_WIDGETID );
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if( s->parent && w && w->text && strchr( w->text, key ) ) {
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// This screen wants this key. Tell it we got one
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sprintf(str, "key %c\n", key);
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sock_send_string(s->parent->sock, str);
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// Nobody else gets this key
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} else {
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// Give key to anyone who wants it
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c = (client *)LL_GetFirst(clients);
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while(c) {
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// If the client should have this keypress...
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s = (screen *)LL_GetFirst(c->data->screenlist);
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while(s) {
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w = widget_find( s, KEYS_WIDGETID );
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if( s->parent && w && w->text && strchr( w->text, key ) ) {
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// Send keypress to client
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sprintf(str, "key %c\n", key);
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sock_send_string(c->sock, str);
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break ; // Screen loop
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}
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s = (screen *)LL_GetNext(c->data->screenlist);
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} // while screens
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c = (client *)LL_GetNext(clients);
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} // while clients
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// Give server a shot at all keys
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server_input (key);
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}
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};
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return 0;
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}
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int
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server_input (int key)
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{
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debug ("server_input(%c)\n", (char) key);
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switch (key) {
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case 'A':
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if (screenlist_action == SCR_HOLD)
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screenlist_action = 0;
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else
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screenlist_action = SCR_HOLD;
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break;
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case 'B':
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screenlist_action = SCR_BACK;
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screenlist_prev ();
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break;
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case 'C':
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screenlist_action = SCR_SKIP;
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screenlist_next ();
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break;
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case 'D':
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debug ("got the menu key!\n");
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server_menu ();
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break;
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default:
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debug ("server_input: Unused key \"%c\" (%i)\n", (char) key, key);
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break;
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}
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return 0;
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}
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