Very basic functionality
This commit is contained in:
parent
4fde566f6a
commit
5e52041e67
54
src/borders.zig
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54
src/borders.zig
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@ -0,0 +1,54 @@
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pub const Border = struct {
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top_left: u21,
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top_right: u21,
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bottom_left: u21,
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bottom_right: u21,
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top: u21,
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bottom: u21,
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left: u21,
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right: u21,
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};
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pub const BasicBorder = Border{
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.top_left = '┌',
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.top_right = '┐',
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.bottom_left = '└',
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.bottom_right = '┘',
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.top = '─',
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.bottom = '─',
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.left = '│',
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.right = '│',
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};
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pub const BoldBorder = Border{
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.top_left = '┏',
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.top_right = '┓',
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.bottom_left = '┗',
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.bottom_right = '┛',
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.top = '━',
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.bottom = '━',
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.left = '┃',
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.right = '┃',
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};
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pub const DoubleBorder = Border{
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.top_left = '╔',
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.top_right = '╗',
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.bottom_left = '╚',
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.bottom_right = '╝',
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.top = '═',
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.bottom = '═',
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.left = '║',
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.right = '║',
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};
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pub const BigBorder = Border{
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.top_left = '▛',
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.top_right = '▜',
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.bottom_left = '▙',
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.bottom_right = '▟',
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.top = '▀',
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.bottom = '▄',
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.left = '▌',
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.right = '▐',
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};
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34
src/colors.zig
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34
src/colors.zig
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@ -0,0 +1,34 @@
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pub const Color = struct {
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type: enum { Default, RGB },
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red: u8,
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green: u8,
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blue: u8,
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pub fn equal(self: Color, other: Color) bool {
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if (self.type != other.type) {
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return false;
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}
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if (self.type == .Default) {
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return true;
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}
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return self.red == other.red and self.green == other.green and self.blue == self.blue;
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}
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};
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pub const Default = Color{
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.type = .Default,
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.red = undefined,
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.green = undefined,
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.blue = undefined,
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};
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pub inline fn RGB(red: u8, green: u8, blue: u8) Color {
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return .{
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.type = .RGB,
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.red = red,
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.green = green,
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.blue = blue,
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};
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}
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41
src/dimensions.zig
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41
src/dimensions.zig
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@ -0,0 +1,41 @@
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pub const Anchor = enum {
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TopLeft,
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TopCenter,
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TopRight,
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CenterLeft,
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Center,
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CenterRight,
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BottomLeft,
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BottomCenter,
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BottomRight,
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};
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pub const Position = struct {
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x: usize,
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y: usize,
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};
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pub const Size = struct {
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width: usize,
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height: usize,
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};
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pub const Dimensions = struct {
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size_type: enum { Relative, Absolute },
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size: Size,
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anchor: Anchor,
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};
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pub const CalculatedDimensions = struct {
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size: Size,
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pos: Position,
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};
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pub const Fill = Dimensions{
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.size_type = .Relative,
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.anchor = .TopLeft,
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.size = .{
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.width = 100,
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.height = 100,
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},
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};
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83
src/main.zig
83
src/main.zig
@ -1,24 +1,73 @@
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const std = @import("std");
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const term = @import("term.zig");
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const borders = @import("borders.zig");
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const pane = @import("pane.zig");
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const color = @import("colors.zig");
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const dim = @import("dimensions.zig");
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var term_io: term.TermIO = undefined;
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pub fn panic(msg: []const u8, error_return_trace: ?*std.builtin.StackTrace, ret_addr: ?usize) noreturn {
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pane.cleanup(&term_io);
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std.builtin.default_panic(msg, error_return_trace, ret_addr);
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}
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pub fn main() !void {
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// Prints to stderr (it's a shortcut based on `std.io.getStdErr()`)
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std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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const allocator = gpa.allocator();
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defer {
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if (gpa.deinit() == .leak) {
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std.debug.print("Memory was leaked D:\n", .{});
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}
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}
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// stdout is for the actual output of your application, for example if you
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// are implementing gzip, then only the compressed bytes should be sent to
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// stdout, not any debugging messages.
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const stdout_file = std.io.getStdOut().writer();
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var bw = std.io.bufferedWriter(stdout_file);
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const stdout = bw.writer();
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term_io = try term.getTermIO();
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try stdout.print("Run `zig build test` to run the tests.\n", .{});
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try pane.init(&term_io);
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defer pane.cleanup(&term_io);
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try bw.flush(); // don't forget to flush!
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}
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test "simple test" {
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var list = std.ArrayList(i32).init(std.testing.allocator);
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defer list.deinit(); // try commenting this out and see if zig detects the memory leak!
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try list.append(42);
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try std.testing.expectEqual(@as(i32, 42), list.pop());
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var top = pane.Pane{
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.dimensions = dim.Fill,
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.border = borders.BoldBorder,
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.children = std.ArrayList(*pane.Pane).init(allocator),
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.background = color.RGB(30, 30, 30),
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.foreground = color.RGB(0, 255, 0),
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};
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var child = pane.Pane{
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.parent = &top,
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.children = null,
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.dimensions = .{
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.anchor = .Center,
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.size_type = .Relative,
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.size = .{ .width = 50, .height = 50 },
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},
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.border = borders.BoldBorder,
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.background = color.RGB(125, 0, 125),
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.foreground = color.RGB(255, 125, 10),
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};
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pane.top_pane = ⊤
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try top.children.?.append(&child);
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const childWriter = child.writer(&term_io);
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var key = term_io.getKey(false);
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while (key.value != 113 and !pane.should_exit) {
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try pane.tick(&term_io);
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if (key.type == .ASCII and key.value == 111) {
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try std.fmt.format(childWriter, "\x1b[2J", .{});
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try term_io.flush();
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}
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if (key.type == .ASCII and key.value == 110) {
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try std.fmt.format(childWriter, "Hello", .{});
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try term_io.flush();
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}
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if (key.type == .ASCII and key.value == 109) {
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try std.fmt.format(childWriter, "Hello\n", .{});
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try term_io.flush();
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}
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key = term_io.getKey(false);
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}
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top.children.?.deinit();
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}
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220
src/pane.zig
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220
src/pane.zig
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@ -0,0 +1,220 @@
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const std = @import("std");
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const color = @import("colors.zig");
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const dim = @import("dimensions.zig");
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const term = @import("term.zig");
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const Border = @import("borders.zig").Border;
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const TermIO = term.TermIO;
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pub var top_pane: *Pane = undefined;
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pub var focused_pane: ?*Pane = null;
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pub var should_exit: bool = false;
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var needs_redraw = true;
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var redraw_count: usize = 0;
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fn resize_signal(sig: i32) callconv(.C) void {
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_ = sig;
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needs_redraw = true;
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}
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fn exit_signal(sig: i32) callconv(.C) void {
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_ = sig;
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should_exit = true;
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}
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pub fn init(term_io: *TermIO) !void {
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var resize_handler = std.posix.Sigaction{
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.handler = .{ .handler = resize_signal },
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.mask = std.posix.empty_sigset,
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.flags = 0,
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};
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try std.posix.sigaction(std.posix.SIG.WINCH, &resize_handler, null);
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var exit_handler = std.posix.Sigaction{
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.handler = .{ .handler = exit_signal },
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.mask = std.posix.empty_sigset,
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.flags = 0,
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};
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try std.posix.sigaction(std.posix.SIG.INT, &exit_handler, null);
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term_io.enterRawMode();
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term_io.saveScreen() catch {};
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term_io.hideCursor();
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try term_io.flush();
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}
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pub fn cleanup(term_io: *TermIO) void {
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term_io.showCursor();
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term_io.restoreScreen() catch {};
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term_io.exitRawMode();
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term_io.flush() catch {};
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term_io.close();
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}
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pub fn tick(term_io: *TermIO) !void {
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if (needs_redraw) {
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needs_redraw = false;
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const size = term.getTermSize(term_io);
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term_io.clear();
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try top_pane.ReDraw(term_io, size);
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redraw_count += 1;
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try std.fmt.format(top_pane.writer(term_io), "Resized {} times", .{redraw_count});
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try term_io.flush();
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}
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}
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pub const Overflow = struct {
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x: enum { Wrap, Hidden },
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y: enum { Scroll, Hidden },
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};
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pub const Cursor = struct {
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x: usize,
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y: usize,
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};
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pub const Pane = struct {
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parent: ?*Pane = null,
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children: ?std.ArrayList(*Pane),
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border: ?Border = null,
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cursor: Cursor = .{ .x = 0, .y = 0 },
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overflow: Overflow = .{ .x = .Hidden, .y = .Hidden },
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dimensions: dim.Dimensions,
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calcDims: dim.CalculatedDimensions = undefined,
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background: color.Color = color.Default,
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foreground: color.Color = color.Default,
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pub const WriterContext = struct { pane: *Pane, term_io: *const TermIO };
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pub const Writer = std.io.Writer(WriterContext, std.fs.File.WriteError, write);
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pub fn ReDraw(self: *Pane, term_io: *TermIO, parentDims: dim.CalculatedDimensions) !void {
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self.calcDims = .{ .pos = parentDims.pos, .size = self.dimensions.size };
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if (self.dimensions.size_type == .Relative) {
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std.debug.assert(self.dimensions.size.width <= 100 and self.dimensions.size.height <= 100);
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self.calcDims.size.width = (parentDims.size.width * self.dimensions.size.width) / 100;
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self.calcDims.size.height = (parentDims.size.height * self.dimensions.size.height) / 100;
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}
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try term_io.setColor(self.background, self.foreground);
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switch (self.dimensions.anchor) {
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.TopLeft => {},
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.TopCenter => {
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self.calcDims.pos.x = parentDims.pos.x + (parentDims.size.width - self.calcDims.size.width) / 2;
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},
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.TopRight => {
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self.calcDims.pos.x = parentDims.pos.x + parentDims.size.width - self.calcDims.size.width;
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},
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.CenterLeft => {
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self.calcDims.pos.y = parentDims.pos.y + (parentDims.size.height - self.calcDims.size.height) / 2;
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},
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.Center => {
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self.calcDims.pos.x = parentDims.pos.x + (parentDims.size.width - self.calcDims.size.width) / 2;
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self.calcDims.pos.y = parentDims.pos.y + (parentDims.size.height - self.calcDims.size.height) / 2;
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},
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.CenterRight => {
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self.calcDims.pos.x = parentDims.pos.x + parentDims.size.width - self.calcDims.size.width;
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self.calcDims.pos.y = parentDims.pos.y + (parentDims.size.height - self.calcDims.size.height) / 2;
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},
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.BottomLeft => {
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self.calcDims.pos.y = parentDims.pos.y + parentDims.size.height - self.calcDims.size.height;
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},
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.BottomCenter => {
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self.calcDims.pos.y = parentDims.pos.y + parentDims.size.height - self.calcDims.size.height;
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self.calcDims.pos.x = parentDims.pos.x + (parentDims.size.width - self.calcDims.size.width) / 2;
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},
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.BottomRight => {
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self.calcDims.pos.y = parentDims.pos.y + parentDims.size.height - self.calcDims.size.height;
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self.calcDims.pos.x = parentDims.pos.x + parentDims.size.width - self.calcDims.size.width;
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},
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}
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if (self.border) |border| {
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var fill = false;
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if (self.parent) |parent| {
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fill = !self.background.equal(parent.background);
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} else {
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fill = !self.background.equal(color.Default);
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}
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try term_io.drawBox(self.calcDims, border, fill);
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}
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try term_io.flush();
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//_ = term_io.getKey(true);
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if (self.children) |children| {
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for (children.items) |child| {
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try child.ReDraw(term_io, self.calcDims);
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try child.focus(term_io);
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}
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}
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}
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pub fn focus(self: *Pane, term_io: *const TermIO) !void {
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focused_pane = self;
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self.cursor = .{ .x = 0, .y = 0 };
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self.moveCursor(term_io);
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try term_io.setColor(self.background, self.foreground);
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}
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fn nextLine(self: *Pane, term_io: *const TermIO) void {
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self.cursor.x = 0;
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self.cursor.y += 1;
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self.moveCursor(term_io);
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}
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pub fn moveCursor(self: *Pane, term_io: *const TermIO) void {
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const borderWidth: u1 = if (self.border != null) 1 else 0;
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term_io.moveCursor(self.calcDims.pos.x + self.cursor.x + borderWidth, self.calcDims.pos.y + self.cursor.y + borderWidth) catch {};
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}
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pub fn print(self: *Pane, term_io: *const TermIO, string: []const u8) !void {
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const borderWidth: u2 = if (self.border != null) 1 else 0;
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var space = self.calcDims.size.width - self.cursor.x - (2 * borderWidth);
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var i: usize = 0;
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while (string.len - i >= space) {
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try term_io.print("{s}", .{string[i .. i + space]}, .{});
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self.nextLine(term_io);
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i += space;
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space = self.calcDims.size.width - (2 * borderWidth);
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}
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if (i < string.len) {
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try term_io.print("{s}", .{string[i..]}, .{});
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self.cursor.x += string.len - i;
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}
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}
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pub fn writer(self: *Pane, term_io: *const TermIO) Writer {
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return .{
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.context = .{ .pane = self, .term_io = term_io },
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};
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}
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pub fn write(self: WriterContext, bytes: []const u8) std.fs.File.WriteError!usize {
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if (self.pane != focused_pane) {
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try self.pane.focus(self.term_io);
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}
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const borderWidth: u2 = if (self.pane.border != null) 1 else 0;
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for (bytes) |byte| {
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switch (byte) {
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'\x1b' => continue,
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'\n' => self.pane.nextLine(self.term_io),
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else => {
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self.pane.cursor.x += try self.term_io.stdout.write(&[_]u8{byte});
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if (self.pane.cursor.x >= self.pane.calcDims.size.width - (2 * borderWidth)) {
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self.pane.nextLine(self.term_io);
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}
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},
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}
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}
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return bytes.len;
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}
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};
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563
src/term.zig
Normal file
563
src/term.zig
Normal file
@ -0,0 +1,563 @@
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const std = @import("std");
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const fs = std.fs;
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const posix = std.posix;
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const borders = @import("borders.zig");
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const dim = @import("dimensions.zig");
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const color = @import("colors.zig");
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var orig_termios: posix.termios = undefined;
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pub const MenuError = error{ForgottenMenuItem};
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pub const KeyType = enum {
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ASCII,
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SEQUENCE,
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};
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pub const SequenceKey = enum(u8) {
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UP,
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DOWN,
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LEFT,
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RIGHT,
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DELETE,
|
||||
|
||||
UNKNOWN,
|
||||
};
|
||||
|
||||
pub const Key = struct {
|
||||
type: KeyType,
|
||||
value: u8,
|
||||
};
|
||||
|
||||
pub const PrintFlags = struct {
|
||||
dim: bool = false,
|
||||
bold: bool = false,
|
||||
italic: bool = false,
|
||||
underline: bool = false,
|
||||
highlight: bool = false,
|
||||
};
|
||||
|
||||
pub const SelectMenuItem = struct {
|
||||
name: []const u8,
|
||||
selected: bool = false,
|
||||
};
|
||||
|
||||
pub const MenuItem = struct {
|
||||
name: []const u8,
|
||||
value: usize,
|
||||
disabled: bool = false,
|
||||
};
|
||||
|
||||
pub const SelectMenu = struct {
|
||||
title: []const u8,
|
||||
items: []SelectMenuItem,
|
||||
focused_item: usize = 0,
|
||||
cancelled: bool = false,
|
||||
|
||||
pub fn init(title: []const u8, items: []SelectMenuItem) SelectMenu {
|
||||
return .{ .title = title, .items = items };
|
||||
}
|
||||
|
||||
pub fn reset(self: *SelectMenu) void {
|
||||
self.focused_item = 0;
|
||||
self.cancelled = false;
|
||||
}
|
||||
|
||||
pub fn refresh(self: *SelectMenu, term_io: *TermIO) !void {
|
||||
term_io.clear();
|
||||
|
||||
try term_io.print("{s}", .{self.title}, .{ .underline = true });
|
||||
for (self.items, 0..) |_, i| {
|
||||
try self.printItem(i, term_io);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn show(self: *SelectMenu, term_io: *TermIO) !void {
|
||||
try self.refresh(term_io);
|
||||
|
||||
while (true) {
|
||||
const key: Key = term_io.getKey(true);
|
||||
if (key.type == KeyType.SEQUENCE) {
|
||||
const key_enum: SequenceKey = @enumFromInt(key.value);
|
||||
switch (key_enum) {
|
||||
SequenceKey.DOWN => try self.nextItem(term_io),
|
||||
SequenceKey.UP => try self.prevItem(term_io),
|
||||
else => continue,
|
||||
}
|
||||
}
|
||||
|
||||
switch (key.value) {
|
||||
13 => break, // Enter
|
||||
' ' => {
|
||||
try self.toggleSelection(term_io);
|
||||
},
|
||||
0x1b, 'q' => {
|
||||
self.cancelled = true;
|
||||
return;
|
||||
},
|
||||
'j' => try self.nextItem(term_io),
|
||||
'k' => try self.prevItem(term_io),
|
||||
else => continue,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn printItem(self: *SelectMenu, item: usize, term_io: *TermIO) !void {
|
||||
if (self.items[item].selected) {
|
||||
try term_io.output(1, item + 2, "[X] {s}", .{self.items[item].name}, .{ .highlight = item == self.focused_item });
|
||||
} else {
|
||||
try term_io.output(1, item + 2, "[ ] {s}", .{self.items[item].name}, .{ .highlight = item == self.focused_item });
|
||||
}
|
||||
}
|
||||
|
||||
fn toggleSelection(self: *SelectMenu, term_io: *TermIO) !void {
|
||||
self.items[self.focused_item].selected = !self.items[self.focused_item].selected;
|
||||
try self.printItem(self.focused_item, term_io);
|
||||
}
|
||||
|
||||
fn nextItem(self: *SelectMenu, term_io: *TermIO) !void {
|
||||
if (self.focused_item < self.items.len - 1) {
|
||||
try self.focusItem(self.focused_item + 1, term_io);
|
||||
}
|
||||
}
|
||||
|
||||
fn prevItem(self: *SelectMenu, term_io: *TermIO) !void {
|
||||
if (self.focused_item > 0) {
|
||||
try self.focusItem(self.focused_item - 1, term_io);
|
||||
}
|
||||
}
|
||||
|
||||
fn focusItem(self: *SelectMenu, item: usize, term_io: *TermIO) !void {
|
||||
const previousSelection = self.focused_item;
|
||||
self.focused_item = item;
|
||||
|
||||
if (previousSelection != self.focused_item) {
|
||||
try self.printItem(previousSelection, term_io);
|
||||
}
|
||||
try self.printItem(self.focused_item, term_io);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Menu = struct {
|
||||
title: []const u8,
|
||||
items: []MenuItem,
|
||||
selected_item: usize = 0,
|
||||
selected_value: usize = 0,
|
||||
|
||||
pub fn init(title: []const u8, items: []MenuItem) Menu {
|
||||
for (items) |item| {
|
||||
std.debug.assert(item.value != 0);
|
||||
}
|
||||
|
||||
return .{ .title = title, .items = items };
|
||||
}
|
||||
|
||||
pub fn reset(self: *Menu) void {
|
||||
self.selected_item = 0;
|
||||
self.selected_value = 0;
|
||||
}
|
||||
|
||||
pub fn refresh(self: *Menu, term_io: *TermIO) !void {
|
||||
term_io.clear();
|
||||
|
||||
try term_io.print("{s}", .{self.title}, .{ .underline = true });
|
||||
for (self.items, 0..) |_, i| {
|
||||
try self.printItem(i, term_io);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn show(self: *Menu, term_io: *TermIO) !void {
|
||||
if (self.items[self.selected_item].disabled) {
|
||||
try self.nextItem(term_io);
|
||||
}
|
||||
if (self.items[self.selected_item].disabled) {
|
||||
self.selected_item = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
try self.refresh(term_io);
|
||||
|
||||
while (true) {
|
||||
const key: Key = term_io.getKey(true);
|
||||
if (key.type == KeyType.SEQUENCE) {
|
||||
const key_enum: SequenceKey = @enumFromInt(key.value);
|
||||
switch (key_enum) {
|
||||
SequenceKey.DOWN => try self.nextItem(term_io),
|
||||
SequenceKey.UP => try self.prevItem(term_io),
|
||||
else => continue,
|
||||
}
|
||||
}
|
||||
|
||||
switch (key.value) {
|
||||
13 => break, // Enter
|
||||
'0' => {
|
||||
if (!self.items[9].disabled) {
|
||||
try self.selectItem(9, term_io);
|
||||
break;
|
||||
}
|
||||
},
|
||||
'1'...'9' => {
|
||||
if (!self.items[key.value - '1'].disabled) {
|
||||
try self.selectItem(key.value - '1', term_io);
|
||||
break;
|
||||
}
|
||||
},
|
||||
0x1b, 'q' => {
|
||||
self.selected_value = 0;
|
||||
return;
|
||||
},
|
||||
'j' => try self.nextItem(term_io),
|
||||
'k' => try self.prevItem(term_io),
|
||||
else => continue,
|
||||
}
|
||||
}
|
||||
|
||||
self.selected_value = self.items[self.selected_item].value;
|
||||
}
|
||||
|
||||
fn printItem(self: *Menu, item: usize, term_io: *TermIO) !void {
|
||||
if (item < 10) {
|
||||
try term_io.output(1, item + 2, "{d}: {s}", .{ item + 1 % 10, self.items[item].name }, .{ .dim = self.items[item].disabled, .highlight = item == self.selected_item });
|
||||
} else {
|
||||
try term_io.output(1, item + 2, " : {s}", .{self.items[item].name}, .{ .dim = self.items[item].disabled, .highlight = item == self.selected_item });
|
||||
}
|
||||
}
|
||||
|
||||
fn nextItem(self: *Menu, term_io: *TermIO) !void {
|
||||
var i: usize = self.selected_item;
|
||||
while (i < self.items.len and (self.items[i].disabled or i == self.selected_item)) {
|
||||
i += 1;
|
||||
}
|
||||
if (!self.items[i].disabled) {
|
||||
try self.selectItem(i, term_io);
|
||||
}
|
||||
}
|
||||
|
||||
fn prevItem(self: *Menu, term_io: *TermIO) !void {
|
||||
var i: usize = self.selected_item;
|
||||
while (i > 0 and (self.items[i].disabled or i == self.selected_item)) {
|
||||
i -= 1;
|
||||
}
|
||||
if (!self.items[i].disabled) {
|
||||
try self.selectItem(i, term_io);
|
||||
}
|
||||
}
|
||||
|
||||
fn selectItem(self: *Menu, item: usize, term_io: *TermIO) !void {
|
||||
const previousSelection = self.selected_item;
|
||||
self.selected_item = item;
|
||||
|
||||
if (previousSelection != self.selected_item) {
|
||||
try self.printItem(previousSelection, term_io);
|
||||
}
|
||||
try self.printItem(self.selected_item, term_io);
|
||||
}
|
||||
};
|
||||
|
||||
pub const Input = struct {
|
||||
pos_x: usize,
|
||||
pos_y: usize,
|
||||
max_len: usize,
|
||||
|
||||
cursor_pos: usize = 0,
|
||||
len: usize = 0,
|
||||
text: []u8,
|
||||
_allocator: std.mem.Allocator,
|
||||
|
||||
pub fn init(allocator: std.mem.Allocator, x: usize, y: usize, max_len: usize) !Input {
|
||||
return Input{
|
||||
.pos_x = x,
|
||||
.pos_y = y,
|
||||
.max_len = max_len,
|
||||
.text = try allocator.alloc(u8, max_len),
|
||||
._allocator = allocator,
|
||||
};
|
||||
}
|
||||
|
||||
pub fn deinit(self: *Input) void {
|
||||
self._allocator.free(self.text);
|
||||
}
|
||||
|
||||
pub fn reset(self: *Input) void {
|
||||
@memset(self.text, ' ');
|
||||
}
|
||||
|
||||
pub fn draw(self: *Input, term_io: *TermIO) !void {
|
||||
try term_io.output(self.pos_x, self.pos_y, "{s}", .{self.text}, .{ .underline = true });
|
||||
}
|
||||
|
||||
pub fn focus(self: *Input, term_io: *TermIO) !void {
|
||||
try term_io.moveCursor(self.pos_x + @min(self.cursor_pos, self.max_len - 1), self.pos_y);
|
||||
term_io.showCursor();
|
||||
}
|
||||
|
||||
pub fn handleKey(self: *Input, term_io: *TermIO, key: Key) !void {
|
||||
if (key.type == .ASCII) {
|
||||
if (std.ascii.isPrint(key.value) and self.len < self.max_len) {
|
||||
try self.insertChar(key.value);
|
||||
try self.draw(term_io);
|
||||
// try term_io.output(17 + input_len, 4, "{c}", .{key.value}, .{});
|
||||
} else if (key.value == 0x7F and self.cursor_pos > 0 and self.len > 0) { // Backspace
|
||||
try self.removeChar();
|
||||
try self.draw(term_io);
|
||||
// try term_io.output(17 + input_len, 4, " ", .{}, .{});
|
||||
}
|
||||
} else {
|
||||
const key_enum: SequenceKey = @enumFromInt(key.value);
|
||||
if (key_enum == SequenceKey.RIGHT and self.cursor_pos < self.len) {
|
||||
self.cursor_pos += 1;
|
||||
} else if (key_enum == SequenceKey.LEFT and self.cursor_pos > 0) {
|
||||
self.cursor_pos -= 1;
|
||||
} else if (key_enum == SequenceKey.DELETE and self.cursor_pos < self.len) {
|
||||
self.cursor_pos += 1;
|
||||
try self.removeChar();
|
||||
try self.draw(term_io);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn insertChar(self: *Input, char: u8) !void {
|
||||
var i: usize = self.len;
|
||||
while (i > self.cursor_pos) : (i -= 1) {
|
||||
self.text[i] = self.text[i - 1];
|
||||
}
|
||||
self.text[self.cursor_pos] = char;
|
||||
self.len += 1;
|
||||
self.cursor_pos += 1;
|
||||
}
|
||||
|
||||
fn removeChar(self: *Input) !void {
|
||||
self.cursor_pos -= 1;
|
||||
for (self.cursor_pos..self.len - 1) |i| {
|
||||
self.text[i] = self.text[i + 1];
|
||||
}
|
||||
self.text[self.len - 1] = ' ';
|
||||
self.len -= 1;
|
||||
}
|
||||
};
|
||||
|
||||
pub const TermIO = struct {
|
||||
stdin: fs.File.Reader,
|
||||
stdout: std.io.BufferedWriter(4096, fs.File.Writer).Writer,
|
||||
tty_file: fs.File,
|
||||
current_background: color.Color = color.Default,
|
||||
current_foreground: color.Color = color.Default,
|
||||
escape_sequence_queued: bool = false,
|
||||
|
||||
pub fn close(self: *const TermIO) void {
|
||||
self.tty_file.close();
|
||||
}
|
||||
|
||||
pub fn flush(self: *TermIO) !void {
|
||||
try self.stdout.context.flush();
|
||||
}
|
||||
|
||||
pub fn enterRawMode(term_io: *const TermIO) void {
|
||||
orig_termios = posix.tcgetattr(term_io.tty_file.handle) catch unreachable;
|
||||
|
||||
var raw = orig_termios;
|
||||
raw.iflag.BRKINT = false;
|
||||
raw.iflag.ICRNL = false;
|
||||
raw.iflag.INPCK = false;
|
||||
raw.iflag.ISTRIP = false;
|
||||
raw.iflag.IXON = false;
|
||||
|
||||
// raw.oflag.OPOST = false;
|
||||
|
||||
raw.cflag.CSIZE = posix.CSIZE.CS8;
|
||||
|
||||
raw.lflag.ECHO = false;
|
||||
raw.lflag.ICANON = false;
|
||||
raw.lflag.IEXTEN = false;
|
||||
raw.lflag.ISIG = false;
|
||||
|
||||
raw.cc[@intFromEnum(posix.V.MIN)] = 0;
|
||||
raw.cc[@intFromEnum(posix.V.TIME)] = 1;
|
||||
|
||||
posix.tcsetattr(term_io.tty_file.handle, posix.TCSA.FLUSH, raw) catch unreachable;
|
||||
}
|
||||
|
||||
pub fn exitRawMode(term_io: *const TermIO) void {
|
||||
posix.tcsetattr(term_io.tty_file.handle, posix.TCSA.FLUSH, orig_termios) catch unreachable;
|
||||
}
|
||||
|
||||
pub fn saveScreen(term_io: *const TermIO) !void {
|
||||
try term_io.stdout.print("\x1b[s", .{});
|
||||
try term_io.stdout.print("\x1b[?47h", .{});
|
||||
try term_io.stdout.print("\x1b[?1049h", .{});
|
||||
}
|
||||
|
||||
pub fn restoreScreen(term_io: *const TermIO) !void {
|
||||
try term_io.stdout.print("\x1b[?1049l", .{});
|
||||
try term_io.stdout.print("\x1b[?47l", .{});
|
||||
try term_io.stdout.print("\x1b[u", .{});
|
||||
}
|
||||
|
||||
pub fn clear(term_io: *const TermIO) void {
|
||||
term_io.stdout.print("\x1b[2J\x1b[H", .{}) catch unreachable;
|
||||
}
|
||||
|
||||
pub fn setColor(term_io: *const TermIO, background: color.Color, foreground: color.Color) !void {
|
||||
try term_io.setBackgroundColor(background);
|
||||
try term_io.setForegroundColor(foreground);
|
||||
}
|
||||
|
||||
pub fn setBackgroundColor(term_io: *const TermIO, background: color.Color) !void {
|
||||
if (!background.equal(term_io.current_background)) {
|
||||
switch (background.type) {
|
||||
.Default => try term_io.print("\x1b[49m", .{}, .{}),
|
||||
.RGB => try term_io.print("\x1b[48;2;{};{};{}m", .{ background.red, background.green, background.blue }, .{}),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn setForegroundColor(term_io: *const TermIO, foreground: color.Color) !void {
|
||||
if (!foreground.equal(term_io.current_foreground)) {
|
||||
switch (foreground.type) {
|
||||
.Default => try term_io.print("\x1b[39m", .{}, .{}),
|
||||
.RGB => try term_io.print("\x1b[38;2;{};{};{}m", .{ foreground.red, foreground.green, foreground.blue }, .{}),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn hideCursor(term_io: *const TermIO) void {
|
||||
term_io.stdout.print("\x1b[?25l", .{}) catch unreachable;
|
||||
}
|
||||
|
||||
pub fn showCursor(term_io: *const TermIO) void {
|
||||
term_io.stdout.print("\x1b[?25h", .{}) catch unreachable;
|
||||
}
|
||||
|
||||
pub fn moveCursor(term_io: *const TermIO, x: usize, y: usize) !void {
|
||||
try term_io.stdout.print("\x1b[{d};{d}H", .{ y, x });
|
||||
}
|
||||
|
||||
pub fn saveTitle(term_io: *const TermIO) !void {
|
||||
try term_io.stdout.print("\x1b[22;2t", .{});
|
||||
}
|
||||
|
||||
pub fn restoreTitle(term_io: *const TermIO) !void {
|
||||
try term_io.stdout.print("\x1b[23;2t", .{});
|
||||
}
|
||||
|
||||
pub fn setTitle(term_io: *const TermIO, title: []const u8) !void {
|
||||
try term_io.stdout.print("\x1b]0;{s}\x1b\\", .{title});
|
||||
}
|
||||
|
||||
pub fn print(term_io: *const TermIO, comptime format: []const u8, args: anytype, flags: PrintFlags) !void {
|
||||
// try term_io.stdout.print("{s}{s}{s}{s}{s}" ++ format ++ "\x1b[0m", .{ if (flags.bold) "\x1b[1m" else "", if (flags.dim) "\x1b[2m" else "", if (flags.italic) "\x1b[3m" else "", if (flags.underline) "\x1b[4m" else "", if (flags.highlight) "\x1b[7m" else "" } ++ args);
|
||||
_ = flags;
|
||||
try term_io.stdout.print(format, args);
|
||||
}
|
||||
|
||||
pub fn output(term_io: *const TermIO, x: usize, y: usize, comptime format: []const u8, args: anytype, flags: PrintFlags) !void {
|
||||
// try term_io.stdout.print("\x1b[{d};{d}H{s}{s}{s}{s}{s}" ++ format ++ "\x1b[0m", .{ y, x, if (flags.bold) "\x1b[1m" else "", if (flags.dim) "\x1b[2m" else "", if (flags.italic) "\x1b[3m" else "", if (flags.underline) "\x1b[4m" else "", if (flags.highlight) "\x1b[7m" else "" } ++ args);
|
||||
_ = flags;
|
||||
try term_io.stdout.print("\x1b[{d};{d}H" ++ format, .{ y, x } ++ args);
|
||||
}
|
||||
|
||||
pub fn drawBox(term_io: *TermIO, dims: dim.CalculatedDimensions, border: borders.Border, fill: bool) !void {
|
||||
if (dims.size.width < 2 or dims.size.height < 2) {
|
||||
return;
|
||||
}
|
||||
try term_io.output(dims.pos.x, dims.pos.y, "{u}", .{border.top_left}, .{});
|
||||
for (0..dims.size.width - 2) |_| {
|
||||
try term_io.print("{u}", .{border.top}, .{});
|
||||
}
|
||||
try term_io.print("{u}", .{border.top_right}, .{});
|
||||
for (1..dims.size.height - 1) |h| {
|
||||
try term_io.output(dims.pos.x, dims.pos.y + h, "{u}", .{border.left}, .{});
|
||||
if (fill) {
|
||||
try term_io.print("\x1b[{d}X", .{dims.size.width - 2}, .{});
|
||||
}
|
||||
try term_io.output(dims.pos.x + dims.size.width - 1, dims.pos.y + h, "{u}", .{border.right}, .{});
|
||||
|
||||
if (term_io.stdout.context.buf.len - term_io.stdout.context.end < dims.size.width * 3) {
|
||||
try term_io.flush();
|
||||
_ = term_io.getKey(true);
|
||||
}
|
||||
}
|
||||
try term_io.output(dims.pos.x, dims.pos.y + dims.size.height - 1, "{u}", .{border.bottom_left}, .{});
|
||||
for (0..dims.size.width - 2) |_| {
|
||||
try term_io.print("{u}", .{border.bottom}, .{});
|
||||
}
|
||||
try term_io.print("{u}", .{border.bottom_right}, .{});
|
||||
}
|
||||
|
||||
pub fn getKey(term_io: *TermIO, block: bool) Key {
|
||||
var escape_sequence: [10]u8 = undefined;
|
||||
var sequence_len: usize = 0;
|
||||
|
||||
// peek doesn't exist in 0.12.0 :(
|
||||
while (true) {
|
||||
if (!term_io.escape_sequence_queued) {
|
||||
const c = term_io.stdin.readByte() catch |err| {
|
||||
switch (err) {
|
||||
error.WouldBlock => if (!block) return .{ .type = KeyType.ASCII, .value = 0 },
|
||||
error.EndOfStream => if (!block) return .{ .type = KeyType.ASCII, .value = 0 },
|
||||
else => {
|
||||
std.debug.print("Error: {}\n", .{err});
|
||||
unreachable;
|
||||
},
|
||||
}
|
||||
continue;
|
||||
};
|
||||
if (c != 0x1b and sequence_len == 0) {
|
||||
return .{ .type = KeyType.ASCII, .value = c };
|
||||
}
|
||||
}
|
||||
term_io.escape_sequence_queued = false;
|
||||
|
||||
// Escape sequence
|
||||
sequence_len = 0;
|
||||
escape_sequence[sequence_len] = term_io.stdin.readByte() catch return .{ .type = KeyType.ASCII, .value = 0x1b };
|
||||
|
||||
while (true) {
|
||||
sequence_len += 1;
|
||||
const byte = term_io.stdin.readByte() catch
|
||||
return decipherEscapeSequence(escape_sequence[0..sequence_len]);
|
||||
if (byte == 0x1b) {
|
||||
term_io.escape_sequence_queued = true;
|
||||
return decipherEscapeSequence(escape_sequence[0..sequence_len]);
|
||||
}
|
||||
escape_sequence[sequence_len] = byte;
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
pub fn getTermSize(term_io: *const TermIO) dim.CalculatedDimensions {
|
||||
var ws: std.posix.winsize = undefined;
|
||||
const ret = std.os.linux.ioctl(term_io.tty_file.handle, std.os.linux.T.IOCGWINSZ, @intFromPtr(&ws));
|
||||
if (ret == -1 or ws.ws_col == 0) {
|
||||
std.debug.print("Failed to get terminal size\n", .{});
|
||||
unreachable;
|
||||
}
|
||||
|
||||
return dim.CalculatedDimensions{
|
||||
.pos = .{ .x = 1, .y = 1 },
|
||||
.size = .{ .width = ws.ws_col, .height = ws.ws_row },
|
||||
};
|
||||
}
|
||||
|
||||
pub fn getTermIO() !TermIO {
|
||||
var bw = std.io.bufferedWriter(std.io.getStdOut().writer());
|
||||
return TermIO{
|
||||
.stdin = std.io.getStdIn().reader(),
|
||||
.stdout = bw.writer(),
|
||||
.tty_file = try fs.cwd().openFile("/dev/tty", .{ .mode = .read_write }),
|
||||
};
|
||||
}
|
||||
|
||||
fn decipherEscapeSequence(sequence: []u8) Key {
|
||||
if (sequence.len == 2) {
|
||||
if (std.mem.eql(u8, sequence, &[2]u8{ '[', 'A' })) return .{ .type = KeyType.SEQUENCE, .value = @intFromEnum(SequenceKey.UP) };
|
||||
if (std.mem.eql(u8, sequence, &[2]u8{ '[', 'B' })) return .{ .type = KeyType.SEQUENCE, .value = @intFromEnum(SequenceKey.DOWN) };
|
||||
if (std.mem.eql(u8, sequence, &[2]u8{ '[', 'C' })) return .{ .type = KeyType.SEQUENCE, .value = @intFromEnum(SequenceKey.RIGHT) };
|
||||
if (std.mem.eql(u8, sequence, &[2]u8{ '[', 'D' })) return .{ .type = KeyType.SEQUENCE, .value = @intFromEnum(SequenceKey.LEFT) };
|
||||
} else if (sequence.len == 3) {
|
||||
if (std.mem.eql(u8, sequence, &[3]u8{ '[', '3', '~' })) return .{ .type = KeyType.SEQUENCE, .value = @intFromEnum(SequenceKey.DELETE) };
|
||||
}
|
||||
|
||||
return .{ .type = KeyType.SEQUENCE, .value = @intFromEnum(SequenceKey.UNKNOWN) };
|
||||
}
|
||||
BIN
zig-out/bin/panes
Executable file
BIN
zig-out/bin/panes
Executable file
Binary file not shown.
BIN
zig-out/lib/libpanes.a
Normal file
BIN
zig-out/lib/libpanes.a
Normal file
Binary file not shown.
Loading…
Reference in New Issue
Block a user