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Small code organization changes in ShapeLine::layout: move some variables declarations down closer to where they are used, move variables that are reset every loop down to be declared in the loop, replace Vec::new + mem::swap with mem::take

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This commit is contained in:
Imbris 2023-08-13 21:42:33 -04:00
parent 001d2baac2
commit 24ef4e2fd9
1 changed files with 8 additions and 11 deletions
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19
src/shape.rs
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@ -916,12 +916,6 @@ impl ShapeLine {
vl.spaces += number_of_blanks;
}
let start_x = if self.rtl { line_width } else { 0.0 };
let mut x;
let mut y;
let mut max_ascent: f32 = 0.;
let mut max_descent: f32 = 0.;
// This would keep the maximum number of spans that would fit on a visual line
// If one span is too large, this variable will hold the range of words inside that span
// that fits on a line.
@ -1159,6 +1153,10 @@ impl ShapeLine {
}
// Create the LayoutLines using the ranges inside visual lines
let start_x = if self.rtl { line_width } else { 0.0 };
let mut max_ascent: f32 = 0.;
let mut max_descent: f32 = 0.;
let number_of_visual_lines = visual_lines.len();
for (index, visual_line) in visual_lines.iter().enumerate() {
if visual_line.ranges.is_empty() {
@ -1166,8 +1164,8 @@ impl ShapeLine {
}
let new_order = self.reorder(&visual_line.ranges);
let mut glyphs = Vec::with_capacity(1);
x = start_x;
y = 0.;
let mut x = start_x;
let mut y = 0.;
max_ascent = 0.;
max_descent = 0.;
let alignment_correction = match (align, self.rtl) {
@ -1357,8 +1355,7 @@ impl ShapeLine {
}
}
}
let mut glyphs_swap = Vec::new();
mem::swap(&mut glyphs, &mut glyphs_swap);
layout_lines.push(LayoutLine {
w: if align != Align::Justified {
visual_line.w
@ -1371,7 +1368,7 @@ impl ShapeLine {
},
max_ascent: max_ascent * font_size,
max_descent: max_descent * font_size,
glyphs: glyphs_swap,
glyphs: mem::take(&mut glyphs),
});
push_line = false;
}