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ref(event): split Size into two Points (one for the size and one for the anchor / origin)
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Yves Biener
2025-03-04 00:04:56 +01:00
parent 91ac6241f4
commit 591b990087
23 changed files with 477 additions and 459 deletions
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37
examples/elements/scrollable.zig
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@@ -13,13 +13,14 @@ const QuitText = struct {
return .{ .ptr = this, .vtable = &.{ .content = content } };
}
pub fn content(ctx: *anyopaque, cells: []zterm.Cell, size: zterm.Size) !void {
fn content(ctx: *anyopaque, cells: []zterm.Cell, origin: zterm.Point, size: zterm.Point) !void {
_ = ctx;
std.debug.assert(cells.len == @as(usize, size.cols) * @as(usize, size.rows));
std.debug.assert(cells.len == @as(usize, size.x) * @as(usize, size.y));
_ = origin;
const row = 2;
const col = size.cols / 2 -| (text.len / 2);
const anchor = (row * size.cols) + col;
const col = size.x / 2 -| (text.len / 2);
const anchor = (row * size.x) + col;
for (text, 0..) |cp, idx| {
cells[anchor + idx].style.fg = .white;
@@ -42,18 +43,22 @@ const HelloWorldText = packed struct {
};
}
fn content(ctx: *anyopaque, cells: []zterm.Cell, size: zterm.Size) !void {
fn content(ctx: *anyopaque, cells: []zterm.Cell, origin: zterm.Point, size: zterm.Point) !void {
_ = ctx;
std.debug.assert(cells.len == @as(usize, size.cols) * @as(usize, size.rows));
std.debug.assert(cells.len == @as(usize, size.x) * @as(usize, size.y));
_ = origin;
// NOTE error should only be returned here in case an in-recoverable exception has occurred
const row = size.rows / 2;
const col = size.cols / 2 -| (text.len / 2);
const anchor = (row * size.cols) + col;
const row = size.y / 2;
const col = size.x / 2 -| (text.len / 2);
const anchor = (row * size.x) + col;
for (0.., text) |idx, char| {
cells[anchor + idx].style.fg = .black;
cells[anchor + idx].cp = char;
for (text, 0..) |cp, idx| {
cells[anchor + idx].style.fg = .white;
cells[anchor + idx].style.bg = .black;
cells[anchor + idx].cp = cp;
// NOTE do not write over the contents of this `Container`'s `Size`
if (anchor + idx == cells.len - 1) break;
}
}
};
@@ -138,10 +143,10 @@ pub fn main() !void {
defer container.deinit();
// place empty container containing the element of the scrollable Container.
var scrollable_top: App.Scrollable = .init(top_box, .{ .rows = 50 });
var scrollable_top: App.Scrollable = .init(top_box, .{ .y = 50 });
try container.append(try App.Container.init(allocator, .{}, scrollable_top.element()));
var scrollable_bottom: App.Scrollable = .init(bottom_box, .{ .rows = 30 });
var scrollable_bottom: App.Scrollable = .init(bottom_box, .{ .y = 30 });
try container.append(try App.Container.init(allocator, .{}, scrollable_bottom.element()));
try app.start();
@@ -155,7 +160,7 @@ pub fn main() !void {
switch (event) {
.init => continue,
.quit => break,
.resize => |size| try renderer.resize(size),
.size => |size| try renderer.resize(size),
.key => |key| if (key.eql(.{ .cp = 'c', .mod = .{ .ctrl = true } })) app.quit(),
.err => |err| log.err("Received {s} with message: {s}", .{ @errorName(err.err), err.msg }),
else => {},