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fix(core/rust): make vertical alignment for FormattedText work for paginated content

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This commit is contained in:
grdddj 2023-06-19 18:11:08 +02:00 committed by Jiří Musil
parent ef5469ad90
commit 947e2ee24f
1 changed files with 16 additions and 15 deletions
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31
core/embed/rust/src/ui/component/text/formatted.rs
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@ -57,10 +57,13 @@ impl<T: StringType + Clone> FormattedText<T> {
impl<T: StringType + Clone> Paginate for FormattedText<T> {
fn page_count(&mut self) -> usize {
let mut page_count = 1; // There's always at least one page.
let mut char_offset = 0;
// Make sure we're starting from the beginning.
self.char_offset = char_offset;
// Make sure we're starting page counting from the very beginning
// (but remembering the offsets not to change them).
let initial_y_offset = self.y_offset;
let initial_char_offset = self.char_offset;
self.char_offset = 0;
self.y_offset = 0;
// Looping through the content and counting pages
// until we finally fit.
@ -68,31 +71,30 @@ impl<T: StringType + Clone> Paginate for FormattedText<T> {
let fit = self.layout_content(&mut TextNoOp);
match fit {
LayoutFit::Fitting { .. } => {
break; // TODO: We should consider if there's more content
// to render.
break;
}
LayoutFit::OutOfBounds {
processed_chars, ..
} => {
page_count += 1;
char_offset += processed_chars;
self.char_offset = char_offset;
self.char_offset += processed_chars;
}
}
}
// Reset the char offset back to the beginning.
self.char_offset = 0;
// Setting the offsets back to the initial values.
self.char_offset = initial_char_offset;
self.y_offset = initial_y_offset;
page_count
}
fn change_page(&mut self, to_page: usize) {
let mut active_page = 0;
let mut char_offset = 0;
// Make sure we're starting from the beginning.
self.char_offset = char_offset;
self.char_offset = 0;
self.y_offset = 0;
// Looping through the content until we arrive at
// the wanted page.
@ -100,19 +102,18 @@ impl<T: StringType + Clone> Paginate for FormattedText<T> {
while active_page < to_page {
match fit {
LayoutFit::Fitting { .. } => {
break; // TODO: We should consider if there's more content
// to render.
break;
}
LayoutFit::OutOfBounds {
processed_chars, ..
} => {
active_page += 1;
char_offset += processed_chars;
self.char_offset = char_offset;
self.char_offset += processed_chars;
fit = self.layout_content(&mut TextNoOp);
}
}
}
// Setting appropriate self.y_offset
self.align_vertically(fit.height());
}
}