neurocyte/flow
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feat: make indent size and tab width configurable and add indent guide mode

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This commit is contained in:
CJ van den Berg 2024-10-10 23:14:55 +02:00
parent 55fb6d29a0
commit d2238bf847
Signed by: neurocyte
GPG key ID: 8EB1E1BB660E3FB9
15 changed files with 363 additions and 323 deletions
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29
src/renderer/vaxis/Plane.zig
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@ -121,7 +121,7 @@ pub fn print_aligned_right(self: *Plane, y: c_int, comptime fmt: anytype, args:
var buf: [fmt.len + 4096]u8 = undefined;
const width = self.window.width;
const text = try std.fmt.bufPrint(&buf, fmt, args);
const text_width = self.egc_chunk_width(text, 0);
const text_width = self.egc_chunk_width(text, 0, 8);
self.row = @intCast(y);
self.col = @intCast(if (text_width >= width) 0 else width - text_width);
return self.putstr(text);
@ -131,7 +131,7 @@ pub fn print_aligned_center(self: *Plane, y: c_int, comptime fmt: anytype, args:
var buf: [fmt.len + 4096]u8 = undefined;
const width = self.window.width;
const text = try std.fmt.bufPrint(&buf, fmt, args);
const text_width = self.egc_chunk_width(text, 0);
const text_width = self.egc_chunk_width(text, 0, 8);
self.row = @intCast(y);
self.col = @intCast(if (text_width >= width) 0 else (width - text_width) / 2);
return self.putstr(text);
@ -230,7 +230,7 @@ pub fn cell_init(self: Plane) Cell {
pub fn cell_load(self: *Plane, cell: *Cell, gcluster: [:0]const u8) !usize {
var cols: c_int = 0;
const bytes = self.egc_length(gcluster, &cols, 0);
const bytes = self.egc_length(gcluster, &cols, 0, 1);
cell.cell.char.grapheme = self.cache.put(gcluster[0..bytes]);
cell.cell.char.width = @intCast(cols);
return bytes;
@ -334,9 +334,9 @@ inline fn set_font_style(style: *vaxis.Cell.Style, fs: FontStyle) void {
}
}
pub fn egc_length(self: *const Plane, egcs: []const u8, colcount: *c_int, abs_col: usize) usize {
pub fn egc_length(self: *const Plane, egcs: []const u8, colcount: *c_int, abs_col: usize, tab_width: usize) usize {
if (egcs[0] == '\t') {
colcount.* = @intCast(8 - abs_col % 8);
colcount.* = @intCast(tab_width - (abs_col % tab_width));
return 1;
}
var iter = self.window.screen.unicode.graphemeIterator(egcs);
@ -350,13 +350,13 @@ pub fn egc_length(self: *const Plane, egcs: []const u8, colcount: *c_int, abs_co
return s.len;
}
pub fn egc_chunk_width(self: *const Plane, chunk_: []const u8, abs_col_: usize) usize {
pub fn egc_chunk_width(self: *const Plane, chunk_: []const u8, abs_col_: usize, tab_width: usize) usize {
var abs_col = abs_col_;
var chunk = chunk_;
var colcount: usize = 0;
var cols: c_int = 0;
while (chunk.len > 0) {
const bytes = self.egc_length(chunk, &cols, abs_col);
const bytes = self.egc_length(chunk, &cols, abs_col, tab_width);
colcount += @intCast(cols);
abs_col += @intCast(cols);
if (chunk.len < bytes) break;
@ -365,21 +365,22 @@ pub fn egc_chunk_width(self: *const Plane, chunk_: []const u8, abs_col_: usize)
return colcount;
}
pub fn metrics(self: *const Plane) Buffer.Metrics {
pub fn metrics(self: *const Plane, tab_width: usize) Buffer.Metrics {
return .{
.ctx = self,
.egc_length = struct {
fn f(ctx: *const anyopaque, egcs: []const u8, colcount: *c_int, abs_col: usize) usize {
const self_: *const Plane = @ptrCast(@alignCast(ctx));
return self_.egc_length(egcs, colcount, abs_col);
fn f(self_: Buffer.Metrics, egcs: []const u8, colcount: *c_int, abs_col: usize) usize {
const plane: *const Plane = @ptrCast(@alignCast(self_.ctx));
return plane.egc_length(egcs, colcount, abs_col, self_.tab_width);
}
}.f,
.egc_chunk_width = struct {
fn f(ctx: *const anyopaque, chunk_: []const u8, abs_col_: usize) usize {
const self_: *const Plane = @ptrCast(@alignCast(ctx));
return self_.egc_chunk_width(chunk_, abs_col_);
fn f(self_: Buffer.Metrics, chunk_: []const u8, abs_col_: usize) usize {
const plane: *const Plane = @ptrCast(@alignCast(self_.ctx));
return plane.egc_chunk_width(chunk_, abs_col_, self_.tab_width);
}
}.f,
.tab_width = tab_width,
};
}