79 lines
2.6 KiB
Zig
79 lines
2.6 KiB
Zig
const std = @import("std");
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const Allocator = std.mem.Allocator;
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const tp = @import("thespian");
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const Buffer = @import("Buffer");
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const Plane = @import("renderer").Plane;
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const Widget = @import("../Widget.zig");
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const Button = @import("../Button.zig");
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const command = @import("../command.zig");
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line: usize = 0,
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lines: usize = 0,
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column: usize = 0,
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buf: [256]u8 = undefined,
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rendered: [:0]const u8 = "",
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eol_mode: Buffer.EolMode = .lf,
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const Self = @This();
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pub fn create(allocator: Allocator, parent: Plane, event_handler: ?Widget.EventHandler) @import("widget.zig").CreateError!Widget {
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return Button.create_widget(Self, allocator, parent, .{
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.ctx = .{},
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.label = "",
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.on_click = on_click,
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.on_layout = layout,
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.on_render = render,
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.on_receive = receive,
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.on_event = event_handler,
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});
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}
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fn on_click(_: *Self, _: *Button.State(Self)) void {
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command.executeName("goto", .{}) catch {};
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}
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pub fn layout(self: *Self, btn: *Button.State(Self)) Widget.Layout {
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const len = btn.plane.egc_chunk_width(self.rendered, 0, 1);
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return .{ .static = len };
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}
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pub fn render(self: *Self, btn: *Button.State(Self), theme: *const Widget.Theme) bool {
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btn.plane.set_base_style(" ", if (btn.active) theme.editor_cursor else if (btn.hover) theme.statusbar_hover else theme.statusbar);
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btn.plane.erase();
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btn.plane.home();
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_ = btn.plane.putstr(self.rendered) catch {};
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return false;
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}
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fn format(self: *Self) void {
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var fbs = std.io.fixedBufferStream(&self.buf);
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const writer = fbs.writer();
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const eol_mode = switch (self.eol_mode) {
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.lf => "",
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.crlf => " [␍␊]",
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};
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std.fmt.format(writer, "{s} Ln {d}, Col {d} ", .{ eol_mode, self.line + 1, self.column + 1 }) catch {};
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self.rendered = @ptrCast(fbs.getWritten());
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self.buf[self.rendered.len] = 0;
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}
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pub fn receive(self: *Self, _: *Button.State(Self), _: tp.pid_ref, m: tp.message) error{Exit}!bool {
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var eol_mode: Buffer.EolModeTag = @intFromEnum(Buffer.EolMode.lf);
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if (try m.match(.{ "E", "pos", tp.extract(&self.lines), tp.extract(&self.line), tp.extract(&self.column) })) {
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self.format();
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} else if (try m.match(.{ "E", "eol_mode", tp.extract(&eol_mode) })) {
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self.eol_mode = @enumFromInt(eol_mode);
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self.format();
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} else if (try m.match(.{ "E", "open", tp.more })) {
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self.eol_mode = .lf;
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} else if (try m.match(.{ "E", "close" })) {
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self.lines = 0;
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self.line = 0;
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self.column = 0;
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self.rendered = "";
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self.eol_mode = .lf;
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}
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return false;
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}
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