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const std = @import("std");
const testing = std.testing;
const lib = @import("../lib.zig");
const page = @import("../page.zig");
const Cell = page.Cell;
const color = @import("../color.zig");
const style_c = @import("style.zig");
const Result = @import("result.zig").Result;
/// C: GhosttyCell
pub const CCell = u64;
/// C: GhosttyCellContentTag
pub const ContentTag = enum(c_int) {
codepoint = 0,
codepoint_grapheme = 1,
bg_color_palette = 2,
bg_color_rgb = 3,
};
/// C: GhosttyCellWide
pub const Wide = enum(c_int) {
narrow = 0,
wide = 1,
spacer_tail = 2,
spacer_head = 3,
};
/// C: GhosttyCellSemanticContent
pub const SemanticContent = enum(c_int) {
output = 0,
input = 1,
prompt = 2,
};
/// C: GhosttyCellData
pub const CellData = enum(c_int) {
invalid = 0,
/// The codepoint of the cell (0 if empty or bg-color-only).
/// Output type: uint32_t * (stored as u21, zero-extended)
codepoint = 1,
/// The content tag describing what kind of content is in the cell.
/// Output type: GhosttyCellContentTag *
content_tag = 2,
/// The wide property of the cell.
/// Output type: GhosttyCellWide *
wide = 3,
/// Whether the cell has text to render.
/// Output type: bool *
has_text = 4,
/// Whether the cell has styling (non-default style).
/// Output type: bool *
has_styling = 5,
/// The style ID for the cell (for use with style lookups).
/// Output type: uint16_t *
style_id = 6,
/// Whether the cell has a hyperlink.
/// Output type: bool *
has_hyperlink = 7,
/// Whether the cell is protected.
/// Output type: bool *
protected = 8,
/// The semantic content type of the cell (from OSC 133).
/// Output type: GhosttyCellSemanticContent *
semantic_content = 9,
/// The palette index for the cell's background color.
/// Only valid when content_tag is bg_color_palette.
/// Output type: GhosttyColorPaletteIndex *
color_palette = 10,
/// The RGB value for the cell's background color.
/// Only valid when content_tag is bg_color_rgb.
/// Output type: GhosttyColorRgb *
color_rgb = 11,
/// Output type expected for querying the data of the given kind.
pub fn OutType(comptime self: CellData) type {
return switch (self) {
.invalid => void,
.codepoint => u32,
.content_tag => ContentTag,
.wide => Wide,
.has_text, .has_styling, .has_hyperlink, .protected => bool,
.style_id => u16,
.semantic_content => SemanticContent,
.color_palette => u8,
.color_rgb => color.RGB.C,
};
}
};
pub fn get(
cell_: CCell,
data: CellData,
out: ?*anyopaque,
) callconv(lib.calling_conv) Result {
if (comptime std.debug.runtime_safety) {
_ = std.meta.intToEnum(CellData, @intFromEnum(data)) catch {
return .invalid_value;
};
}
return switch (data) {
.invalid => .invalid_value,
inline else => |comptime_data| getTyped(
cell_,
comptime_data,
@ptrCast(@alignCast(out)),
),
};
}
fn getTyped(
cell_: CCell,
comptime data: CellData,
out: *data.OutType(),
) Result {
const cell: Cell = @bitCast(cell_);
switch (data) {
.invalid => return .invalid_value,
.codepoint => out.* = @intCast(cell.codepoint()),
.content_tag => out.* = @enumFromInt(@intFromEnum(cell.content_tag)),
.wide => out.* = @enumFromInt(@intFromEnum(cell.wide)),
.has_text => out.* = cell.hasText(),
.has_styling => out.* = cell.hasStyling(),
.style_id => out.* = cell.style_id,
.has_hyperlink => out.* = cell.hyperlink,
.protected => out.* = cell.protected,
.semantic_content => out.* = @enumFromInt(@intFromEnum(cell.semantic_content)),
.color_palette => out.* = cell.content.color_palette,
.color_rgb => {
const rgb = cell.content.color_rgb;
out.* = .{ .r = rgb.r, .g = rgb.g, .b = rgb.b };
},
}
return .success;
}
test "get codepoint" {
const cell: CCell = @bitCast(Cell.init('A'));
var cp: u32 = 0;
try testing.expectEqual(Result.success, get(cell, .codepoint, @ptrCast(&cp)));
try testing.expectEqual(@as(u32, 'A'), cp);
}
test "get has_text" {
const cell: CCell = @bitCast(Cell.init('A'));
var has: bool = false;
try testing.expectEqual(Result.success, get(cell, .has_text, @ptrCast(&has)));
try testing.expect(has);
}
test "get empty cell" {
const cell: CCell = @bitCast(Cell.init(0));
var has: bool = true;
try testing.expectEqual(Result.success, get(cell, .has_text, @ptrCast(&has)));
try testing.expect(!has);
}
test "get wide" {
var zig_cell = Cell.init('A');
zig_cell.wide = .wide;
const cell: CCell = @bitCast(zig_cell);
var w: Wide = .narrow;
try testing.expectEqual(Result.success, get(cell, .wide, @ptrCast(&w)));
try testing.expectEqual(Wide.wide, w);
}
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