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Simplify match scrolling

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This commit is contained in:
adnano 2024-02-26 10:47:35 -05:00
parent 906b55019e
commit d23a2c563a
1 changed files with 28 additions and 60 deletions
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88
main.c
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@ -183,79 +183,47 @@ void scroll_matches(struct menu_state *state) {
return;
}
if (state->leftmost == NULL && state->rightmost == NULL) {
state->leftmost = state->matches;
}
if (state->vertical) {
if (state->leftmost == NULL) {
state->leftmost = state->matches;
if (state->rightmost == NULL) {
int offs = 0;
struct menu_item *item;
for (item = state->matches; item->left != state->selection; item = item->right) {
offs += state->line_height;
if (offs >= state->height) {
state->leftmost = item->left;
offs = state->height - offs;
}
}
} else {
int offs = 0;
struct menu_item *item;
for (item = state->rightmost; item; item = item->left) {
offs += state->line_height;
if (offs >= state->height) {
state->leftmost = item->right;
break;
}
}
struct menu_item *item = state->rightmost;
for (int i = 1; item->left && i < state->lines; i++) {
item = item->left;
}
}
if (state->rightmost == NULL) {
state->rightmost = state->matches;
int offs = 0;
struct menu_item *item;
for (item = state->leftmost; item; item = item->right) {
offs += state->line_height;
if (offs >= state->height) {
break;
}
state->rightmost = item;
state->leftmost = item;
} else if (state->rightmost == NULL) {
struct menu_item *item = state->leftmost;
for (int i = 1; item->right && i < state->lines; i++) {
item = item->right;
}
state->rightmost = item;
}
} else {
// Calculate available space
int padding = state->padding;
int width = state->width - state->inputw - state->promptw
int max_width = state->width - state->inputw - state->promptw
- state->left_arrow - state->right_arrow;
if (state->leftmost == NULL) {
state->leftmost = state->matches;
if (state->rightmost == NULL) {
int offs = 0;
struct menu_item *item;
for (item = state->matches; item->left != state->selection; item = item->right) {
offs += item->width + 2 * padding;
if (offs >= width) {
state->leftmost = item->left;
offs = width - offs;
}
}
} else {
int offs = 0;
struct menu_item *item;
for (item = state->rightmost; item; item = item->left) {
offs += item->width + 2 * padding;
if (offs >= width) {
state->leftmost = item->right;
break;
}
state->leftmost = state->rightmost;
int total_width = 0;
struct menu_item *item;
for (item = state->rightmost; item; item = item->left) {
total_width += item->width + 2 * state->padding;
if (total_width > max_width) {
break;
}
state->leftmost = item;
}
}
if (state->rightmost == NULL) {
state->rightmost = state->matches;
int offs = 0;
} else if (state->rightmost == NULL) {
state->rightmost = state->leftmost;
int total_width = 0;
struct menu_item *item;
for (item = state->leftmost; item; item = item->right) {
offs += item->width + 2 * padding;
if (offs >= width) {
total_width += item->width + 2 * state->padding;
if (total_width > max_width) {
break;
}
state->rightmost = item;