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mod(container): support layout direction handling for child elements

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Yves Biener
2025-02-01 11:31:05 +01:00
parent 1293cb065d
commit 0bf79dc236
2 changed files with 62 additions and 2 deletions
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56
src/container.zig
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@@ -141,10 +141,62 @@ pub fn Container(comptime Event: type) type {
pub fn handle(this: *@This(), event: Event) ?Event {
switch (event) {
.init => log.debug(".init event", .{}),
.resize => |size| {
.resize => |size| resize: {
log.debug("Event .resize: {{ .anchor = {{ .col = {d}, .row = {d} }}, .cols = {d}, .rows = {d} }}", .{
size.anchor.col,
size.anchor.row,
size.cols,
size.rows,
});
this.size = size;
if (this.elements.items.len == 0)
break :resize;
const len: u16 = @truncate(this.elements.items.len);
const element_cols = @divTrunc(size.cols, len);
const element_rows = @divTrunc(size.rows, len);
var offset: u16 = 0;
for (this.elements.items) |*element| {
const element_size: Size = size;
var element_size: Size = undefined;
switch (this.properties.layout.direction) {
.horizontal => {
var overflow = size.cols % len;
// adjust size according to the containing elements
var cols = element_cols;
if (overflow > 0) {
overflow -|= 1;
cols += 1;
}
element_size = .{
.anchor = .{
.col = size.anchor.col + offset,
.row = size.anchor.row,
},
.cols = cols,
.rows = size.rows,
};
offset += cols;
},
.vertical => {
var overflow = size.rows % len;
// adjust size according to the containing elements
var rows = element_rows;
if (overflow > 0) {
overflow -|= 1;
rows += 1;
}
element_size = .{
.anchor = .{
.col = size.anchor.col,
.row = size.anchor.row + offset,
},
.cols = size.cols,
.rows = rows,
};
offset += rows;
},
}
// TODO; adjust size according to the layout of the `Container`
if (element.handle(.{ .resize = element_size })) |e| {
_ = e;