From 232a0a02d509c8b961b0d124b2958e8cb8c2ca29 Mon Sep 17 00:00:00 2001
From: Matthew Runyon <matthewrunyon@deephaven.io>
Date: Thu, 12 May 2022 15:53:05 -0500
Subject: [PATCH 1/2] Fix floating column border not touching top and bottom

---
 packages/grid/src/GridRenderer.ts | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/packages/grid/src/GridRenderer.ts b/packages/grid/src/GridRenderer.ts
index a449319766..d97e1b09cf 100644
--- a/packages/grid/src/GridRenderer.ts
+++ b/packages/grid/src/GridRenderer.ts
@@ -515,16 +515,16 @@ export class GridRenderer {
         getOrThrow(visibleColumnXs, floatingLeftColumnCount - 1) +
         getOrThrow(visibleColumnWidths, floatingLeftColumnCount - 1) +
         0.5;
-      context.moveTo(x, 0.5);
-      context.lineTo(x, maxY - 0.5);
+      context.moveTo(x, 0);
+      context.lineTo(x, maxY);
     }
 
     if (floatingRightColumnCount > 0) {
       const x =
         getOrThrow(visibleColumnXs, columnCount - floatingRightColumnCount) -
         0.5;
-      context.moveTo(x, 0.5);
-      context.lineTo(x, maxY - 0.5);
+      context.moveTo(x, 0);
+      context.lineTo(x, maxY);
     }
 
     context.stroke();
@@ -554,16 +554,16 @@ export class GridRenderer {
         getOrThrow(visibleColumnXs, floatingLeftColumnCount - 1) +
         getOrThrow(visibleColumnWidths, floatingLeftColumnCount - 1) +
         0.5;
-      context.moveTo(x, 0.5);
-      context.lineTo(x, maxY - 0.5);
+      context.moveTo(x, 0);
+      context.lineTo(x, maxY);
     }
 
     if (floatingRightColumnCount > 0) {
       const x =
         getOrThrow(visibleColumnXs, columnCount - floatingRightColumnCount) -
         0.5;
-      context.moveTo(x, 0.5);
-      context.lineTo(x, maxY - 0.5);
+      context.moveTo(x, 0);
+      context.lineTo(x, maxY);
     }
 
     context.stroke();

From bd3a64b762e914040ea954da2cd0ca559663a0d5 Mon Sep 17 00:00:00 2001
From: Matthew Runyon <matthewrunyon@deephaven.io>
Date: Fri, 13 May 2022 13:26:26 -0500
Subject: [PATCH 2/2] Fix incorrect half pixel on horizontal frozen lines

---
 packages/grid/src/GridRenderer.ts | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/packages/grid/src/GridRenderer.ts b/packages/grid/src/GridRenderer.ts
index d97e1b09cf..d1de31895a 100644
--- a/packages/grid/src/GridRenderer.ts
+++ b/packages/grid/src/GridRenderer.ts
@@ -499,15 +499,15 @@ export class GridRenderer {
         getOrThrow(visibleRowYs, floatingTopRowCount - 1) +
         getOrThrow(visibleRowHeights, floatingTopRowCount - 1) +
         0.5;
-      context.moveTo(0.5, y);
-      context.lineTo(maxX - 0.5, y);
+      context.moveTo(0, y);
+      context.lineTo(maxX, y);
     }
 
     if (floatingBottomRowCount > 0) {
       const y =
         getOrThrow(visibleRowYs, rowCount - floatingBottomRowCount) - 0.5;
-      context.moveTo(0.5, y);
-      context.lineTo(maxX - 0.5, y);
+      context.moveTo(0, y);
+      context.lineTo(maxX, y);
     }
 
     if (floatingLeftColumnCount > 0) {
@@ -538,15 +538,15 @@ export class GridRenderer {
         getOrThrow(visibleRowYs, floatingTopRowCount - 1) +
         getOrThrow(visibleRowHeights, floatingTopRowCount - 1) +
         0.5;
-      context.moveTo(0.5, y);
-      context.lineTo(maxX - 0.5, y);
+      context.moveTo(0, y);
+      context.lineTo(maxX, y);
     }
 
     if (floatingBottomRowCount > 0) {
       const y =
         getOrThrow(visibleRowYs, rowCount - floatingBottomRowCount) - 0.5;
-      context.moveTo(0.5, y);
-      context.lineTo(maxX - 0.5, y);
+      context.moveTo(0, y);
+      context.lineTo(maxX, y);
     }
 
     if (floatingLeftColumnCount > 0) {