mirror of https://github.com/fairyglade/ly.git
119 lines
2.5 KiB
Zig
119 lines
2.5 KiB
Zig
const std = @import("std");
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const Allocator = std.mem.Allocator;
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const ly_ui = @import("ly-ui");
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const keyboard = ly_ui.keyboard;
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const TerminalBuffer = ly_ui.TerminalBuffer;
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const Widget = ly_ui.Widget;
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const CyclableLabel = ly_ui.CyclableLabel;
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const MessageLabel = CyclableLabel(Message, Message);
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const InfoLine = @This();
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const Message = struct {
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width: usize,
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text: []const u8,
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bg: u32,
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fg: u32,
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};
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instance: ?Widget = null,
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label: *MessageLabel,
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pub fn init(
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allocator: Allocator,
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io: std.Io,
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buffer: *TerminalBuffer,
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width: usize,
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arrow_fg: u32,
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arrow_bg: u32,
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) !InfoLine {
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return .{
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.instance = null,
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.label = try MessageLabel.init(
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allocator,
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io,
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buffer,
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drawItem,
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null,
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null,
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width,
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true,
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arrow_fg,
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arrow_bg,
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),
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};
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}
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pub fn deinit(self: *InfoLine) void {
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self.label.deinit();
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}
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pub fn widget(self: *InfoLine) *Widget {
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if (self.instance) |*instance| return instance;
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self.instance = Widget.init(
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"InfoLine",
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self.label.keybinds,
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self,
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deinit,
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null,
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draw,
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null,
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handle,
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null,
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);
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return &self.instance.?;
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}
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pub fn addMessage(self: *InfoLine, text: []const u8, bg: u32, fg: u32) !void {
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if (text.len == 0) return;
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try self.label.addItem(.{
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.width = TerminalBuffer.strWidth(text),
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.text = text,
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.bg = bg,
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.fg = fg,
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});
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}
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pub fn clearRendered(self: InfoLine, allocator: Allocator) !void {
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// Draw over the area
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const spaces = try allocator.alloc(u8, self.label.width - 2);
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defer allocator.free(spaces);
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@memset(spaces, ' ');
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try TerminalBuffer.drawText(
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spaces,
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self.label.component_pos.x + 2,
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self.label.component_pos.y,
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TerminalBuffer.Color.DEFAULT,
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TerminalBuffer.Color.DEFAULT,
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);
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}
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fn draw(self: *InfoLine) void {
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self.label.draw();
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}
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fn handle(self: *InfoLine, maybe_key: ?keyboard.Key) !void {
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try self.label.handle(maybe_key);
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}
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fn drawItem(label: *MessageLabel, message: Message, x: usize, y: usize, width: usize) void {
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if (message.width == 0) return;
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const x_offset = if (label.text_in_center and width >= message.width) (width - message.width) / 2 else 0;
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label.cursor = message.width + x_offset;
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TerminalBuffer.drawConfinedText(
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message.text,
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x + x_offset,
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y,
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width,
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message.fg,
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message.bg,
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) catch {};
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}
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