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gui: take a run at rendering double-width/height lines

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This is using the existing attributes on the lines and rendering
the lines with doubled dimensions.

Selection on double width lines is a bit wonky because we don't
know how to translate the column position correctly.
This commit is contained in:
Wez Furlong 2022-02-05 21:24:30 -07:00
parent 9c83e27172
commit d0a7fc9fd3
2 changed files with 36 additions and 10 deletions
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5
test-data/double.sh Executable file
View File

@ -0,0 +1,5 @@
#!/bin/sh
printf "\x1b#3DOUBLE HEIGHT LINE\n\x1b#4DOUBLE HEIGHT LINE\n\x1b#6DOUBLE WIDTH LINE"
echo
echo
sleep 1

41
wezterm-gui/src/termwindow/render.rs
View File

@ -1721,8 +1721,27 @@ impl super::TermWindow {
Some(params.config.inactive_pane_hsb)
};
let cell_width = params.render_metrics.cell_size.width as f32;
let cell_height = params.render_metrics.cell_size.height as f32;
let width_scale = if !params.line.is_single_width() {
2.0
} else {
1.0
};
if params.line.is_double_height_bottom() {
// The top and bottom lines are required to have the same content.
// For the sake of simplicity, we render both of them as part of
// rendering the top row, so we have nothing more to do here.
return Ok(());
}
let height_scale = if params.line.is_double_height_top() {
2.0
} else {
1.0
};
let cell_width = params.render_metrics.cell_size.width as f32 * width_scale;
let cell_height = params.render_metrics.cell_size.height as f32 * height_scale;
let pos_y = (self.dimensions.pixel_height as f32 / -2.) + params.top_pixel_y;
let gl_x = self.dimensions.pixel_width as f32 / -2.;
@ -2016,8 +2035,10 @@ impl super::TermWindow {
break;
}
let top = cell_height + params.render_metrics.descender.get() as f32
- (glyph.y_offset + glyph.bearing_y).get() as f32;
let top = cell_height
+ (params.render_metrics.descender.get() as f32
- (glyph.y_offset + glyph.bearing_y).get() as f32)
* height_scale;
for glyph_idx in 0..info.pos.num_cells as usize {
for img in &images {
@ -2130,8 +2151,8 @@ impl super::TermWindow {
}
let adjust = (glyph.x_offset + glyph.bearing_x).get() as f32;
let texture_range =
pos_x + adjust..pos_x + adjust + texture.coords.size.width as f32;
let texture_range = pos_x + adjust
..pos_x + adjust + (texture.coords.size.width as f32 * width_scale);
// First bucket the ranges according to cursor position
let (left, mid, right) = range3(&texture_range, &cursor_range_pixels);
@ -2177,7 +2198,7 @@ impl super::TermWindow {
let pixel_rect = euclid::rect(
texture.coords.origin.x + (range.start - (pos_x + adjust)) as isize,
texture.coords.origin.y,
(range.end - range.start) as isize,
((range.end - range.start) / width_scale) as isize,
texture.coords.size.height,
);
@ -2188,7 +2209,7 @@ impl super::TermWindow {
gl_x + range.start,
pos_y + top,
gl_x + range.end,
pos_y + top + texture.coords.size.height as f32,
pos_y + top + texture.coords.size.height as f32 * height_scale,
);
quad.set_fg_color(glyph_color);
quad.set_texture(texture_rect);
@ -2220,7 +2241,7 @@ impl super::TermWindow {
phys_cell_idx += info.pos.num_cells as usize;
visual_cell_idx += info.pos.num_cells as usize;
cluster_x_pos += if params.use_pixel_positioning {
glyph.x_advance.get() as f32
glyph.x_advance.get() as f32 * width_scale
} else {
info.pos.num_cells as f32 * cell_width
};
@ -2230,7 +2251,7 @@ impl super::TermWindow {
Direction::RightToLeft => {
// And decrement it again
cluster_x_pos -= if params.use_pixel_positioning {
item.pixel_width
item.pixel_width * width_scale
} else {
cluster.width as f32 * cell_width
};