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scrollUp done; use a pointer instead of the iterator

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maxchen32 2024-01-14 11:11:26 +08:00
parent 6d9a191be1
commit 28e06e13ea
2 changed files with 52 additions and 10 deletions
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60
testline.c
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@ -13,7 +13,7 @@ typedef struct InfoState {
char* info; char* info;
list_node_t *pos1, *pos2, *pos3; list_node_t *pos1, *pos2, *pos3;
list_t *wrap; list_t *wrap;
list_iterator_t *it; //list_iterator_t *it;
//list_node_t *node; //list_node_t *node;
} InfoState; } InfoState;
@ -101,22 +101,26 @@ void initInfoState(InfoState* st, char* text) {
//st->pos3 = text; //st->pos3 = text;
st->wrap = list_new(); st->wrap = list_new();
st->wrap = aux_gen_wrap_list(st->wrap, st->info); st->wrap = aux_gen_wrap_list(st->wrap, st->info);
st->it = list_iterator_new(st->wrap, LIST_HEAD); //st->it = list_iterator_new(st->wrap, LIST_HEAD);
st->pos1 = list_iterator_next(st->it); //st->pos1 = list_iterator_next(st->it);
st->pos1 = list_at(st->wrap, 0);
st->pos2 = st->pos3 = NULL; st->pos2 = st->pos3 = NULL;
} }
InfoRet initInfoScreen(InfoState* st, char* text) { InfoRet initInfoScreen(InfoState* st, char* text) {
initInfoState(st, text); initInfoState(st, text);
printf("%d\n", st->wrap->len); printf("%d\n", st->wrap->len);
if (st->pos1 == NULL) {
return IR_UNKNOWN;
}
//lcd.setCursor(0, 0); //lcd.setCursor(0, 0);
if ((st->pos2 = list_iterator_next(st->it))) { if ((st->pos2 = st->pos1->next)) {
//printf("hello\n"); //printf("hello\n");
//printf("%d\n", st->pos2->val); //printf("%d\n", st->pos2->val);
int tmp = lcd_print_between(st->info, 0, (int)st->pos2->val); int tmp = lcd_print_between(st->info, 0, (int)st->pos2->val);
//printf("%d\n", tmp); //printf("%d\n", tmp);
//printf("%d\n", st->wrap->len); //printf("%d\n", st->wrap->len);
if ((st->pos3 = list_iterator_next(st->it))) { if ((st->pos3 = st->pos2->next)) {
printf("\n"); printf("\n");
//printf("%d\n", st->pos2->val); //printf("%d\n", st->pos2->val);
//printf("%d\n", st->pos3->val); //printf("%d\n", st->pos3->val);
@ -145,7 +149,7 @@ InfoRet scrollDown(InfoState* st) {
return IR_UNSUCCESS; return IR_UNSUCCESS;
} }
int tmp = lcd_print_between(st->info, (int)st->pos1->val, (int)st->pos2->val); int tmp = lcd_print_between(st->info, (int)st->pos1->val, (int)st->pos2->val);
if ((st->pos3 = list_iterator_next(st->it))) { if ((st->pos3 = st->pos3->next)) {
printf("\n"); printf("\n");
int tmp = lcd_print_between(st->info, (int)st->pos2->val, (int)st->pos3->val); int tmp = lcd_print_between(st->info, (int)st->pos2->val, (int)st->pos3->val);
} else { } else {
@ -156,7 +160,34 @@ InfoRet scrollDown(InfoState* st) {
} }
InfoRet scrollUp(InfoState* st) { InfoRet scrollUp(InfoState* st) {
if (st->pos2) {
st->pos3 = st->pos2;
} else {
return IR_UNKNOWN;
}
if (st->pos1 == NULL) {
return IR_UNKNOWN;
} else if ((int)st->pos1->val == -1) {
return IR_UNSUCCESS;
} else {
st->pos2 = st->pos1;
}
if ((st->pos1 = st->pos1->prev)) {
int tmp = lcd_print_between(st->info, (int)st->pos1->val, (int)st->pos2->val);
} else {
return IR_UNKNOWN;
}
printf("\n");
int tmp = lcd_print_between(st->info, (int)st->pos2->val, (int)st->pos3->val);
return IR_NORMAL;
}
void destoryInfoState(InfoState* st) {
st->pos1 = st->pos2 = st->pos3 = NULL;
list_destroy(st->wrap);
st->info = NULL;
} }
/* /*
@ -233,10 +264,13 @@ int main() {
wrap = aux_gen_wrap_list(wrap, cinfo); wrap = aux_gen_wrap_list(wrap, cinfo);
list_node_t *node; list_node_t *node;
list_iterator_t *it = list_iterator_new(wrap, LIST_HEAD); //list_iterator_t *it = list_iterator_new(wrap, LIST_HEAD);
node = list_iterator_next(it); //node = list_iterator_next(it);
node = list_at(wrap, 0);
printf("node val: %d\n", node->val); printf("node val: %d\n", node->val);
printf("node prev: %p\n", node->prev);
/*
node = list_iterator_next(it); node = list_iterator_next(it);
printf("node val: %d\n", node->val); printf("node val: %d\n", node->val);
node = list_iterator_prev(it); node = list_iterator_prev(it);
@ -245,6 +279,7 @@ int main() {
printf("node val: %d\n", node->val); printf("node val: %d\n", node->val);
node = list_iterator_prev(it); node = list_iterator_prev(it);
printf("node val: %d\n", node->val); printf("node val: %d\n", node->val);
*/
InfoRet ret_code; InfoRet ret_code;
InfoState st; InfoState st;
@ -255,6 +290,12 @@ int main() {
printf("\n%d\n", ret_code); printf("\n%d\n", ret_code);
} }
for (int i = 0; i < 10; ++i) {
printf("\n");
ret_code = scrollUp(&st);
printf("\n%d\n", ret_code);
}
/* /*
while ((node = list_iterator_next(it))) { while ((node = list_iterator_next(it))) {
printf("%d\n", (unsigned int)(node->val)); printf("%d\n", (unsigned int)(node->val));
@ -302,7 +343,8 @@ int main() {
printf("%d\n%s\n", pos-cinfo, line); printf("%d\n%s\n", pos-cinfo, line);
} }
*/ */
list_iterator_destroy(it); //list_iterator_destroy(it);
list_destroy(wrap); list_destroy(wrap);
destoryInfoState(&st);
return 0; return 0;
} }