brian/xevi
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Only handle scrolling if there are items to scroll

Browse source
This commit is contained in:
Mikael Degerfält 2019-06-27 16:00:05 +02:00
parent 0e32077042
commit 73e6db7686
1 changed files with 13 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

24
NuEVI/menu.cpp
View file

@ -980,22 +980,24 @@ static bool updateMenuPage(const MenuPage *page, KeyState &input, uint32_t timeN
}
if(newPos != cursorPos) {
int offset = offsets[page->cursor];
int offset = offsets[page->cursor];
drawMenuCursor(cursorPos-offset, BLACK); // Clear old cursor
// Handle scrolling..
if((newPos - offset) > (MENU_NUM_ROWS-2) ) {
offset = newPos - (MENU_NUM_ROWS-2);
} else if( (newPos - offset) < 1) {
offset = newPos - 1;
}
if(page->numEntries >= MENU_NUM_ROWS) {
// Handle scrolling..
if((newPos - offset) > (MENU_NUM_ROWS-2) ) {
offset = newPos - (MENU_NUM_ROWS-2);
} else if( (newPos - offset) < 1) {
offset = newPos - 1;
}
offset = constrain(offset, 0, page->numEntries - MENU_NUM_ROWS);
offset = constrain(offset, 0, page->numEntries - MENU_NUM_ROWS);
if( offset != offsets[page->cursor]) {
offsets[page->cursor] = offset;
plotMenuEntries(page, true);
if( offset != offsets[page->cursor]) {
offsets[page->cursor] = offset;
plotMenuEntries(page, true);
}
}
drawMenuCursor(newPos-offset, WHITE);