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Greenlamp 2024-05-09 03:58:34 +02:00
parent 4ee1b6ebc6
commit b0a34d2b1e
1 changed files with 19 additions and 4 deletions
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23
src/ui/settings-ui-handler.ts
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@ -122,7 +122,7 @@ export default class SettingsUiHandler extends UiHandler {
processInput(button: Button): boolean {
const ui = this.getUi();
const rowsToDisplay = 9;
const rowsToDisplay = 9; // we can fit 9 rows on the screen
let success = false;
@ -139,21 +139,36 @@ export default class SettingsUiHandler extends UiHandler {
else
success = this.setScrollCursor(this.scrollCursor - 1);
} else {
// we land here if cursor is equal to 0, it means we are at the top of the menu.
// so by clicking on UP, we want to go to the bottom
// to do that, first, we say, on the screen, we want the lastest element visible to be selected
// we do that with the setCursor method
const successA = this.setCursor(rowsToDisplay - 1);
// if we stop here, our cursor will be on the 9th element of the menu. but we want the latest one
// to do so, we fix the scroll to the bottom
// the scrolls go from 0 to the amount of element minus how many element we can fit on the screen
const successB = this.setScrollCursor(this.optionValueLabels.length - rowsToDisplay);
success = successA && successB;
success = successA && successB; // success is just there to play the little validation sound effect
}
break;
case Button.DOWN:
if (cursor < this.optionValueLabels.length - 1) {
if (this.cursor < rowsToDisplay - 1)
if (this.cursor < rowsToDisplay - 1) // if the visual cursor is in the frame of 0 to 8
success = this.setCursor(this.cursor + 1);
else if (this.scrollCursor < this.optionValueLabels.length - rowsToDisplay)
success = this.setScrollCursor(this.scrollCursor + 1);
} else {
// we land here if cursor is equal to how many element there is in the menu.
// why is cursor = this.cursor + this.scrollCursor ? Remember:
// the scrolls go from 0 to the amount of element minus how many element we can fit on the screen
// this.cursor go rom 0 to how many element we can fit on the screen
// the max combination of both of them, give the latest element
// so by clicking on DOWN, we want to go to the top
// to do that, first, we say, on the screen, we want the first element visible to be selected
const successA = this.setCursor(0);
// and then we set the scroll to the minimum -> 0
const successB = this.setScrollCursor(0);
success = successA && successB;
success = successA && successB; // success is just there to play the little validation sound effect
}
break;
case Button.LEFT: