added simple keycode->char lookup functionality

[ppcskel.git] / main.c

diff --git a/main.c b/main.c
index a058cfe93d7efd138d2fa467af90e84bdb0372c0..2bc956f7c3532bddb1197fcb49090216e1bbb7b9 100644 (file)
--- a/main.c
+++ b/main.c
@@ -134,43 +134,66 @@ int main(void)
        }
        while(!usb_hidkb_inuse());
 
+#define FONT_WIDTH  13
+#define FONT_HEIGHT 15
+#define STDOUT_BORDER_LEFT 20
+#define STDOUT_BORDER_RIGHT 650
+#define STDOUT_BORDER_TOP 20
+#define STDOUT_BORDER_BOTTOM 550
+#define TABSIZE 4
        /* you are welcome to make this nice :) */
        char str[7];
-       u16 i, j, y=20, x=20;
+       u16 i, j, y=STDOUT_BORDER_TOP, x=STDOUT_BORDER_LEFT;
+       u16 old_x, old_y;
        struct kbrep *k;
 
        while(1) {
                memset(str, '\0', 8);
                j=0;
                k = usb_hidkb_getChars();
+               old_x = x; /* save actual x and y position for printing after the loop */
+               old_y = y;
                for(i=0; k->keys[i]>0; i++) {
-                       if(x>650) {
-                               x = 20;
-                               y += 15;
+                       unsigned char key = usb_hidkb_get_char_from_keycode(k->keys[i],
+                                       (k->mod & MOD_lshift) || (k->mod & MOD_rshift));
+                       /* no key or key not relevant? next, please. */
+                       if (key == 0)
+                               continue;
+
+                       /* RETURN pressed? */
+                       if (key == '\n') {
+                               x = STDOUT_BORDER_LEFT;
+                               y += FONT_HEIGHT;
+                       /* TAB pressed? */
+                       } else if (key == '\t') {
+                               x += (TABSIZE*FONT_WIDTH);
+
+                       /* BACKSPACE pressed? */
+                       } else if (key == '\r') {
+                               /* TODO */
+
+                       /* now we have only printable characters left */
+                       } else {
+                               x += FONT_WIDTH;
+                               str[j] = key;
+                               j++;
                        }
-                       if(y>440) {
-                               y=20;
-                       }
-                       if((k->keys[i] >= 4) && k->keys[i] <= 4+'z'-'a') {
-                               str[j] = k->keys[i] - 4 + (k->mod & MOD_lshift || k->mod & MOD_rshift ? 'A' : 'a');
-                       } else if ((k->keys[i] >= 0x1e) && (k->keys[i] <= 0x26)) {
-                               str[j] = k->keys[i] - 0x1e + '1';
-                       } else if (k->keys[i] == 0x27) {
-                               str[j] = '0';
+
+                       /* line full? break! */
+                       if(x > (STDOUT_BORDER_RIGHT-FONT_WIDTH)) {
+                               x = STDOUT_BORDER_LEFT;
+                               y += FONT_HEIGHT;
                        }
-                       else if (k->keys[i] == 0x28) {
-                               y += 15;
-                               x = 20;
+                       /* screen full? start again at top */
+                       if(y > (STDOUT_BORDER_BOTTOM-FONT_HEIGHT)) {
+                               y = STDOUT_BORDER_TOP;
                        }
-                       j++;
                }
-               if(j > 0) {
-                       print_str_noscroll(x, y, str);
+               if(j > 0) { /* when there was any printable stuff, show it */
+                       print_str_noscroll(old_x, old_y, str);
                        printf("y: %d\n", y);
                }
-               while(j--) {
-                       x += 13;
-               }
+
        }
 
 #if 0