Setup formatColorForCell

Author: gzh2003

packages/grid/src/DataBarCellRenderer.ts

@@ -147,11 +147,11 @@ class DataBarCellRenderer extends CellRenderer {
     context.save();
     context.textAlign = textAlign;
 
-    // Use explicit text color from model if set.
+    // Use explicit format color if set.
     // Otherwise, fall back to the databar color for text.
-    const textColor = model.colorForCell(modelColumn, modelRow, theme);
-    if (textColor && textColor !== theme.textColor) {
-      context.fillStyle = textColor;
+    const formatColor = model.formatColorForCell(modelColumn, modelRow);
+    if (formatColor != null) {
+      context.fillStyle = formatColor;
     } else if (hasGradient) {
       const color =
         value >= 0 ? dataBarColor[dataBarColor.length - 1] : dataBarColor[0];

packages/grid/src/GridModel.ts

@@ -110,6 +110,18 @@ abstract class GridModel<
     return theme.textColor;
   }
 
+  /**
+   * Get the explicitly set format color for a cell
+   * Unlike colorForCell, this only returns a color that was explicitly
+   * set via formatting not type-based theme colors.
+   * @param column Column to get the format color for
+   * @param row Row to get the format color for
+   * @returns Explicitly set format color, or null if none was set
+   */
+  formatColorForCell(_column: ModelIndex, _row: ModelIndex): NullableGridColor {
+    return null;
+  }
+
   /**
    * Get the background color for the cell
    * @param column Column to get the background color for

packages/iris-grid/src/IrisGridTableModelTemplate.ts

@@ -651,6 +651,10 @@ class IrisGridTableModelTemplate<
     return theme.textColor;
   }
 
+  formatColorForCell(x: ModelIndex, y: ModelIndex): string | null {
+    return this.formatForCell(x, y)?.color ?? null;
+  }
+
   backgroundColorForCell(
     x: ModelIndex,
     y: ModelIndex,