algo/dwindle: add back splitratio (#13498)

1 files changed, 19 insertions, 0 deletions

diff --git a/src/layout/algorithm/tiled/dwindle/DwindleAlgorithm.cpp b/src/layout/algorithm/tiled/dwindle/DwindleAlgorithm.cpp
index f5e230f8..32afc3ab 100644
--- a/src/layout/algorithm/tiled/dwindle/DwindleAlgorithm.cpp
+++ b/src/layout/algorithm/tiled/dwindle/DwindleAlgorithm.cpp
@@ -714,6 +714,25 @@ std::expected<void, std::string> CDwindleAlgorithm::layoutMsg(const std::string_
                 break;
             }
         }
+    } else if (ARGS[0] == "splitratio") {
+        auto ratio = ARGS[1];
+        bool exact = ARGS[2].starts_with("exact");
+
+        if (ratio.empty())
+            return std::unexpected("splitratio requires an arg");
+
+        auto delta = getPlusMinusKeywordResult(std::string{ratio}, 0.F);
+
+        if (!CURRENT_NODE || !CURRENT_NODE->pParent)
+            return std::unexpected("cannot alter split ratio on no / single node");
+
+        if (!delta)
+            return std::unexpected(std::format("failed to parse \"{}\" as a delta", ratio));
+
+        const float newRatio              = exact ? *delta : CURRENT_NODE->pParent->splitRatio + *delta;
+        CURRENT_NODE->pParent->splitRatio = std::clamp(newRatio, 0.1F, 1.9F);
+
+        CURRENT_NODE->pParent->recalcSizePosRecursive();
     }
 
     return {};