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terminal: selectionString only applies x offset on first/last page (#3095)

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Fixes #2841

We were incorrectly applying the start/end x offset for the first/last
row of every single page. If a selection spanned multiple pages this
would trim data incorrectly.

Unit test updated to cover this case.
This commit is contained in:
Mitchell Hashimoto
2024-12-23 14:41:55 -08:00
committed by GitHub
parent 4f10b13fc3 53c41255eb
commit 42cdaa4545
1 changed files with 10 additions and 11 deletions
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21
src/terminal/Screen.zig
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@ -2073,17 +2073,18 @@ pub fn selectionString(self: *Screen, alloc: Allocator, opts: SelectionString) !
};
var page_it = sel_start.pageIterator(.right_down, sel_end);
var row_count: usize = 0;
while (page_it.next()) |chunk| {
const rows = chunk.rows();
for (rows, chunk.start..) |row, y| {
for (rows, chunk.start.., 0..) |row, y, row_i| {
const cells_ptr = row.cells.ptr(chunk.node.data.memory);
const start_x = if (row_count == 0 or sel_ordered.rectangle)
const start_x = if ((row_i == 0 or sel_ordered.rectangle) and
sel_start.node == chunk.node)
sel_start.x
else
0;
const end_x = if (row_count == rows.len - 1 or sel_ordered.rectangle)
const end_x = if ((row_i == rows.len - 1 or sel_ordered.rectangle) and
sel_end.node == chunk.node)
sel_end.x + 1
else
self.pages.cols;
@ -2138,8 +2139,6 @@ pub fn selectionString(self: *Screen, alloc: Allocator, opts: SelectionString) !
.x = chunk.node.data.size.cols - 1,
});
}
row_count += 1;
}
}
@ -8306,7 +8305,7 @@ test "Screen: selectionString multi-page" {
const testing = std.testing;
const alloc = testing.allocator;
var s = try init(alloc, 1, 3, 2048);
var s = try init(alloc, 10, 3, 2048);
defer s.deinit();
const first_page_size = s.pages.pages.first.?.data.capacity.rows;
@ -8318,20 +8317,20 @@ test "Screen: selectionString multi-page" {
}
s.pages.pages.first.?.data.pauseIntegrityChecks(false);
try s.testWriteString("y\ny\ny");
try s.testWriteString("123456789\n!@#$%^&*(\n123456789");
{
const sel = Selection.init(
s.pages.pin(.{ .active = .{ .x = 0, .y = 0 } }).?,
s.pages.pin(.{ .active = .{ .x = 0, .y = 2 } }).?,
s.pages.pin(.{ .active = .{ .x = 2, .y = 2 } }).?,
false,
);
const contents = try s.selectionString(alloc, .{
.sel = sel,
.trim = false,
.trim = true,
});
defer alloc.free(contents);
const expected = "y\ny\ny";
const expected = "123456789\n!@#$%^&*(\n123";
try testing.expectEqualStrings(expected, contents);
}
}