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Scroll if enter goes beyond end of screen

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This commit is contained in:
Jeremy Soller 2022-10-19 11:12:34 -06:00
parent c29eed3a94
commit e1c670440a
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GPG key ID: 87F211AF2BE4C2FE
1 changed files with 23 additions and 13 deletions
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36
src/buffer.rs
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@ -412,23 +412,33 @@ impl<'a> TextBuffer<'a> {
TextAction::Insert(character) => match character {
'\r' | '\n' => {
//TODO: handle Enter
let line = &self.layout_lines[self.cursor.line];
let new_line = if self.cursor.glyph >= line.glyphs.len() {
String::new()
} else {
let glyph = &line.glyphs[self.cursor.glyph];
self.text_lines[line.line_i.get()].split_off(glyph.start)
};
self.text_lines.insert(line.line_i.get() + 1, new_line);
{
let line = &self.layout_lines[self.cursor.line];
let new_line = if self.cursor.glyph >= line.glyphs.len() {
String::new()
} else {
let glyph = &line.glyphs[self.cursor.glyph];
self.text_lines[line.line_i.get()].split_off(glyph.start)
};
self.text_lines.insert(line.line_i.get() + 1, new_line);
// Reshape all lines after new line
//TODO: improve performance
self.shape_lines.truncate(line.line_i.get());
self.relayout();
self.shape_until_scroll();
// Reshape all lines after new line
//TODO: improve performance
self.shape_lines.truncate(line.line_i.get());
self.relayout();
self.shape_until_scroll();
}
self.cursor.glyph = 0;
self.cursor.line += 1;
let lines = self.lines();
if (self.cursor.line as i32) < self.scroll
|| (self.cursor.line as i32) >= self.scroll + lines
{
self.scroll = self.cursor.line as i32 - (lines - 1);
self.shape_until_scroll();
}
},
_ => {
let line = &self.layout_lines[self.cursor.line];