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invert attribute

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This commit is contained in:
Mitchell Hashimoto
2022-06-30 10:05:47 -07:00
parent f53efa633a
commit 527d8baaa0
2 changed files with 41 additions and 10 deletions
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46
src/Grid.zig
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@ -45,6 +45,9 @@ cursor_style: CursorStyle,
/// Default foreground color
foreground: terminal.color.RGB,
/// Default background color
background: terminal.color.RGB,
/// Available cursor styles for drawing. The values represents the mode value
/// in the shader.
pub const CursorStyle = enum(u8) {
@ -242,6 +245,7 @@ pub fn init(alloc: Allocator) !Grid {
.atlas_dirty = false,
.cursor_visible = true,
.cursor_style = .box,
.background = .{ .r = 0, .g = 0, .b = 0 },
.foreground = .{ .r = 255, .g = 255, .b = 255 },
};
}
@ -283,10 +287,34 @@ pub fn updateCells(self: *Grid, term: Terminal) !void {
defer y += 1;
for (line) |cell, x| {
// TODO: inverse
// The colors for the cell.
const colors: struct {
/// Background is optional because in un-inverted mode
/// it may just be equivalent to the default background in
/// which case we do nothing to save on GPU render time.
bg: ?terminal.color.RGB,
/// Fg is always set to some color, though we may not render
/// any fg if the cell is empty or has no attributes like
/// underline.
fg: terminal.color.RGB,
} = if (cell.attrs.inverse == 0) .{
// In normal mode, background and fg match the cell. We
// un-optionalize the fg by defaulting to our fg color.
.bg = cell.bg,
.fg = cell.fg orelse self.foreground,
} else .{
// In inverted mode, the background MUST be set to something
// (is never null) so it is either the fg or default fg. The
// fg is either the bg or default background.
//
// TODO(mitchellh): How should this interact with DECSCNM?
.bg = cell.fg orelse self.foreground,
.fg = cell.bg orelse self.background,
};
// If the cell has a background, we always draw it.
if (cell.bg) |rgb| {
if (colors.bg) |rgb| {
self.cells.appendAssumeCapacity(.{
.mode = 1,
.grid_col = @intCast(u16, x),
@ -308,8 +336,6 @@ pub fn updateCells(self: *Grid, term: Terminal) !void {
});
}
const fg = cell.fg orelse self.foreground;
// If the cell is empty then we draw nothing in the box.
if (!cell.empty()) {
// Determine our glyph styling
@ -337,9 +363,9 @@ pub fn updateCells(self: *Grid, term: Terminal) !void {
.glyph_height = glyph.height,
.glyph_offset_x = glyph.offset_x,
.glyph_offset_y = glyph.offset_y,
.fg_r = fg.r,
.fg_g = fg.g,
.fg_b = fg.b,
.fg_r = colors.fg.r,
.fg_g = colors.fg.g,
.fg_b = colors.fg.b,
.fg_a = 255,
.bg_r = 0,
.bg_g = 0,
@ -359,9 +385,9 @@ pub fn updateCells(self: *Grid, term: Terminal) !void {
.glyph_height = 0,
.glyph_offset_x = 0,
.glyph_offset_y = 0,
.fg_r = fg.r,
.fg_g = fg.g,
.fg_b = fg.b,
.fg_r = colors.fg.r,
.fg_g = colors.fg.g,
.fg_b = colors.fg.b,
.fg_a = 255,
.bg_r = 0,
.bg_g = 0,

5
src/Window.zig
View File

@ -150,6 +150,11 @@ pub fn create(alloc: Allocator, loop: libuv.Loop, config: *const Config) !*Windo
const window_size = try window.getSize();
var grid = try Grid.init(alloc);
try grid.setScreenSize(.{ .width = window_size.width, .height = window_size.height });
grid.background = .{
.r = config.background.r,
.g = config.background.g,
.b = config.background.b,
};
grid.foreground = .{
.r = config.foreground.r,
.g = config.foreground.g,