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-rw-r--r--src/nvim/api/vim.c4
-rw-r--r--src/nvim/window.c8
2 files changed, 7 insertions, 5 deletions
diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c
index 3be45d0cf7..8e0502e03b 100644
--- a/src/nvim/api/vim.c
+++ b/src/nvim/api/vim.c
@@ -1360,7 +1360,9 @@ void nvim_chan_send(Integer chan, String data, Error *err)
/// - `bufpos`: Places float relative to buffer text (only when
/// relative="win"). Takes a tuple of zero-indexed [line, column].
/// `row` and `col` if given are applied relative to this
-/// position, else they default to `row=1` and `col=0`
+/// position, else they default to:
+/// - `row=1` and `col=0` if `anchor` is "NW" or "NE"
+/// - `row=0` and `col=0` if `anchor` is "SW" or "SE"
/// (thus like a tooltip near the buffer text).
/// - `row`: Row position in units of "screen cell height", may be fractional.
/// - `col`: Column position in units of "screen cell width", may be
diff --git a/src/nvim/window.c b/src/nvim/window.c
index c0f537aab3..ff97eaa757 100644
--- a/src/nvim/window.c
+++ b/src/nvim/window.c
@@ -853,12 +853,12 @@ void ui_ext_win_position(win_T *wp)
bool east = c.anchor & kFloatAnchorEast;
bool south = c.anchor & kFloatAnchorSouth;
- int comp_row = (int)row - (south ? wp->w_height : 0);
- int comp_col = (int)col - (east ? wp->w_width : 0);
+ int comp_row = (int)row - (south ? wp->w_height_outer : 0);
+ int comp_col = (int)col - (east ? wp->w_width_outer : 0);
comp_row += grid->comp_row;
comp_col += grid->comp_col;
- comp_row = MAX(MIN(comp_row, Rows-wp->w_height_outer-1), 0);
- comp_col = MAX(MIN(comp_col, Columns-wp->w_width_outer), 0);
+ comp_row = MAX(MIN(comp_row, Rows - wp->w_height_outer - 1), 0);
+ comp_col = MAX(MIN(comp_col, Columns - wp->w_width_outer), 0);
wp->w_winrow = comp_row;
wp->w_wincol = comp_col;
bool valid = (wp->w_redr_type == 0);