tooltip: clamp box width to client on narrow panels; add narrow-client test

2026-07-27 00:05:14 -04:00
parent 7cd0771e45
commit 3876d2d822
3 changed files with 22 additions and 1 deletions
@@ -18,7 +18,10 @@ TooltipBox computeTooltip(int anchorX, int anchorY, int anchorW, int anchorH,
    TooltipBox box;
    if (textW <= 0 || textH <= 0 || clientW <= 0 || clientH <= 0) return box;

-    const int boxW = textW + 2 * spec.padX;
+    // Clamp boxW so it never exceeds the available client span; then clamp x so the (possibly
+    // reduced) box always sits within [margin, clientW - margin].
+    const int maxBoxW = clientW - 2 * spec.margin;
+    const int boxW = (textW + 2 * spec.padX < maxBoxW) ? textW + 2 * spec.padX : maxBoxW;
    const int boxH = textH + 2 * spec.padY;

    // Horizontal: centre on the anchor, then clamp within [margin, clientW - margin - boxW].