LibGUI: Tighten paint invalidation rects in item views :^)

AbstractView now has a paint_invalidation_rect(index) function that
subclasses can override to provide a tighter invalidation rect for
an index.

1 files changed, 8 insertions, 0 deletions

diff --git a/Userland/Libraries/LibGUI/ColumnsView.cpp b/Userland/Libraries/LibGUI/ColumnsView.cpp
index 4262feb0a2..7e0c7e8e7d 100644
--- a/Userland/Libraries/LibGUI/ColumnsView.cpp
+++ b/Userland/Libraries/LibGUI/ColumnsView.cpp
@@ -323,4 +323,12 @@ Gfx::IntRect ColumnsView::content_rect(const ModelIndex& index) const
     return {};
 }
 
+Gfx::IntRect ColumnsView::paint_invalidation_rect(ModelIndex const& index) const
+{
+    auto rect = content_rect(index);
+    rect.translate_by(-icon_size(), 0);
+    rect.set_width(rect.width() + icon_size());
+    return rect;
+}
+
 }