1908-V100-KDGV-KryptonDataGridViewUtilities

Source/Krypton Components/Krypton.Toolkit/Controls Toolkit/KryptonDataGridViewUtilities.cs

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+#region BSD License
+/*
+ *  New BSD 3-Clause License (https://github.com/Krypton-Suite/Standard-Toolkit/blob/master/LICENSE)
+ *  Modifications by Peter Wagner (aka Wagnerp), Simon Coghlan (aka Smurf-IV), Giduac & Ahmed Abdelhameed et al. 2024 - 2025. All rights reserved.
+ *  
+ */
+#endregion
+
+namespace Krypton.Toolkit
+{
+
+    internal class KryptonDataGridViewUtilities
+    {
+        internal static class TextFormatFlagsCellStyleAlignments
+        {
+            // Calculate these once for use in ComputeTextFormatFlagsForCellStyleAlignment()
+            private const TextFormatFlags baseMask = TextFormatFlags.NoPrefix | TextFormatFlags.PreserveGraphicsClipping;
+
+            internal const TextFormatFlags TopLeft_RightToLeft = baseMask | TextFormatFlags.Top | TextFormatFlags.Right | TextFormatFlags.RightToLeft;
+            internal const TextFormatFlags TopLeft_LeftToRight = baseMask | TextFormatFlags.Top | TextFormatFlags.Left;
+            internal const TextFormatFlags TopCenter = baseMask | TextFormatFlags.Top | TextFormatFlags.HorizontalCenter;
+            internal const TextFormatFlags TopRight_RightToLeft = baseMask | TextFormatFlags.Top | TextFormatFlags.Left | TextFormatFlags.RightToLeft;
+            internal const TextFormatFlags TopRight_LeftToRight = baseMask | TextFormatFlags.Top | TextFormatFlags.Right;
+
+            internal const TextFormatFlags MiddleLeft_RightToLeft = baseMask | TextFormatFlags.VerticalCenter | TextFormatFlags.Right | TextFormatFlags.RightToLeft;
+            internal const TextFormatFlags MiddleLeft_LeftToRight = baseMask | TextFormatFlags.VerticalCenter | TextFormatFlags.Left;
+            internal const TextFormatFlags MiddleCenter = baseMask | TextFormatFlags.VerticalCenter | TextFormatFlags.HorizontalCenter;
+            internal const TextFormatFlags MiddleRight_RightToLeft = baseMask | TextFormatFlags.VerticalCenter | TextFormatFlags.Left | TextFormatFlags.RightToLeft;
+            internal const TextFormatFlags MiddleRight_LeftToRight = baseMask | TextFormatFlags.VerticalCenter | TextFormatFlags.Right;
+
+            internal const TextFormatFlags BottomLeft_RightToLeft = baseMask | TextFormatFlags.Bottom | TextFormatFlags.Right | TextFormatFlags.RightToLeft;
+            internal const TextFormatFlags BottomLeft_LeftToRight = baseMask | TextFormatFlags.Bottom | TextFormatFlags.Left;
+            internal const TextFormatFlags BottomCenter = baseMask | TextFormatFlags.Bottom | TextFormatFlags.HorizontalCenter;
+            internal const TextFormatFlags BottomRight_RightToLeft = baseMask | TextFormatFlags.Bottom | TextFormatFlags.Left | TextFormatFlags.RightToLeft;
+            internal const TextFormatFlags BottomRight_Lefttoright = baseMask | TextFormatFlags.Bottom | TextFormatFlags.Right;
+
+            internal const TextFormatFlags DefaultAlignment = baseMask | TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter;
+        }
+
+        internal static TextFormatFlags ComputeTextFormatFlagsForCellStyleAlignment(
+            bool rightToLeft,
+            DataGridViewContentAlignment alignment,
+            DataGridViewTriState wrapMode)
+        {
+            // This routine has been copied from the dotnet winforms project and slightly rewritten to reduce computing masks
+            // Licensed to the .NET Foundation under one or more agreements.
+            // The .NET Foundation licenses this file to you under the MIT license.
+            TextFormatFlags tff = alignment switch
+            {
+                DataGridViewContentAlignment.TopLeft when rightToLeft => TextFormatFlagsCellStyleAlignments.TopLeft_RightToLeft,
+                DataGridViewContentAlignment.TopLeft when !rightToLeft => TextFormatFlagsCellStyleAlignments.TopLeft_LeftToRight,
+                DataGridViewContentAlignment.TopCenter => TextFormatFlagsCellStyleAlignments.TopCenter,
+                DataGridViewContentAlignment.TopRight when rightToLeft => TextFormatFlagsCellStyleAlignments.TopRight_RightToLeft,
+                DataGridViewContentAlignment.TopRight when !rightToLeft => TextFormatFlagsCellStyleAlignments.TopRight_LeftToRight,
+
+                DataGridViewContentAlignment.MiddleLeft when rightToLeft => TextFormatFlagsCellStyleAlignments.MiddleLeft_RightToLeft,
+                DataGridViewContentAlignment.MiddleLeft when !rightToLeft => TextFormatFlagsCellStyleAlignments.MiddleLeft_LeftToRight,
+                DataGridViewContentAlignment.MiddleCenter => TextFormatFlagsCellStyleAlignments.MiddleCenter,
+                DataGridViewContentAlignment.MiddleRight when rightToLeft => TextFormatFlagsCellStyleAlignments.MiddleRight_RightToLeft,
+                DataGridViewContentAlignment.MiddleRight when !rightToLeft => TextFormatFlagsCellStyleAlignments.MiddleRight_LeftToRight,
+
+                DataGridViewContentAlignment.BottomLeft when rightToLeft => TextFormatFlagsCellStyleAlignments.BottomLeft_RightToLeft,
+                DataGridViewContentAlignment.BottomLeft when !rightToLeft => TextFormatFlagsCellStyleAlignments.BottomLeft_LeftToRight,
+                DataGridViewContentAlignment.BottomCenter => TextFormatFlagsCellStyleAlignments.BottomCenter,
+                DataGridViewContentAlignment.BottomRight when rightToLeft => TextFormatFlagsCellStyleAlignments.BottomRight_RightToLeft,
+                DataGridViewContentAlignment.BottomRight when !rightToLeft => TextFormatFlagsCellStyleAlignments.BottomRight_Lefttoright,
+                _ => TextFormatFlagsCellStyleAlignments.DefaultAlignment
+            };
+
+            return  tff | (wrapMode == DataGridViewTriState.False
+                ? TextFormatFlags.SingleLine
+                : TextFormatFlags.WordBreak);
+
+        }
+    }
+}