From d0bd85ab62b02859c5ab834eb8cfeb4d2a6a3afd Mon Sep 17 00:00:00 2001
From: Bowon Ryu <bowon.ryu@samsung.com>
Date: Mon, 15 Jul 2024 20:35:10 +0900
Subject: [PATCH] [NUI] Add AsyncLineCount to TextLabel

Number of lines after latest asynchronous computing or rendering of text.

Signed-off-by: Bowon Ryu <bowon.ryu@samsung.com>
---
 .../src/internal/Interop/Interop.TextLabel.cs |  3 ++
 .../src/public/BaseComponents/TextLabel.cs    | 33 +++++++++++++++++--
 2 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/src/Tizen.NUI/src/internal/Interop/Interop.TextLabel.cs b/src/Tizen.NUI/src/internal/Interop/Interop.TextLabel.cs
index 3e7aee5d1..21b2de627 100755
--- a/src/Tizen.NUI/src/internal/Interop/Interop.TextLabel.cs
+++ b/src/Tizen.NUI/src/internal/Interop/Interop.TextLabel.cs
@@ -199,6 +199,9 @@ namespace Tizen.NUI
             [global::System.Runtime.InteropServices.DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_Dali_TextLabel_Property_MANUAL_RENDERED_get")]
             public static extern int ManualRenderedGet();
 
+            [global::System.Runtime.InteropServices.DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_Dali_TextLabel_Property_ASYNC_LINE_COUNT_get")]
+            public static extern int AsyncLineCountGet();
+
             [global::System.Runtime.InteropServices.DllImport(NDalicPINVOKE.Lib, EntryPoint = "CSharp_Dali_TextLabel_RequestAsyncRenderWithFixedSize")]
             public static extern void RequestAsyncRenderWithFixedSize(global::System.Runtime.InteropServices.HandleRef textLabelRef, float width, float height);
 
diff --git a/src/Tizen.NUI/src/public/BaseComponents/TextLabel.cs b/src/Tizen.NUI/src/public/BaseComponents/TextLabel.cs
index 0133a50a6..1e007ce16 100755
--- a/src/Tizen.NUI/src/public/BaseComponents/TextLabel.cs
+++ b/src/Tizen.NUI/src/public/BaseComponents/TextLabel.cs
@@ -329,7 +329,7 @@ namespace Tizen.NUI.BaseComponents
         /// <param name="width">The width of text to render.</param>
         /// <param name="height">The height of text to render.</param>
         /// <remarks>
-        /// Only works when AsyncMode.
+        /// Only works when AsyncAuto and AsyncManual.
         /// </remarks>
         [EditorBrowsable(EditorBrowsableState.Never)]
         public void RequestAsyncRenderWithFixedSize(float width, float height)
@@ -344,7 +344,7 @@ namespace Tizen.NUI.BaseComponents
         /// <param name="width">The width of text to render.</param>
         /// <param name="heightConstraint">The maximum available height of text to render.</param>
         /// <remarks>
-        /// Only works when AsyncMode.<br />
+        /// Only works when AsyncAuto and AsyncManual.<br />
         /// The height is determined by the content of the text when rendered with the given width.<br />
         /// The result will be the same as the height returned by GetHeightForWidth.
         /// If the heightConstraint is given, the maximum height will be the heightConstraint.
@@ -362,6 +362,7 @@ namespace Tizen.NUI.BaseComponents
         /// <param name="widthConstraint">The maximum available width of text to render.</param>
         /// <param name="heightConstraint">The maximum available height of text to render.</param>
         /// <remarks>
+        /// Only works when AsyncAuto and AsyncManual.<br />
         /// If the width of the text content is smaller than the widthConstraint, the width will be determined by the width of the text.<br />
         /// If the width of the text content is larger than the widthConstraint, the width will be determined by the widthConstraint.<br />
         /// The height is determined by the content of the text when rendered with the given width.<br />
@@ -2642,6 +2643,33 @@ namespace Tizen.NUI.BaseComponents
             }
         }
 
+        /// <summary>
+        /// Number of lines after latest asynchronous computing or rendering of text.
+        /// </summary>
+        /// <example>
+        /// The following example demonstrates how to obtain the LineCount asynchronously.
+        /// <code>
+        /// label.RequestAsyncHeightForWidth(label.Size.Width);
+        /// label.AsyncHeightForWidthComputed += (s, e) =>
+        /// {
+        ///    int lineCount = label.AsyncLineCount;
+        /// };
+        /// </code>
+        /// </example>
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public int AsyncLineCount
+        {
+            get
+            {
+                int asyncLineCount = 0;
+                using (var propertyValue = GetProperty(TextLabel.Property.AsyncLineCount))
+                {
+                    propertyValue.Get(out asyncLineCount);
+                }
+                return asyncLineCount;
+            }
+        }
+
         private TextLabelSelectorData EnsureSelectorData() => selectorData ?? (selectorData = new TextLabelSelectorData());
 
         /// <summary>
@@ -2870,6 +2898,7 @@ namespace Tizen.NUI.BaseComponents
             internal static readonly int Cutout = Interop.TextLabel.CutoutGet();
             internal static readonly int RenderMode = Interop.TextLabel.RenderModeGet();
             internal static readonly int ManualRendered = Interop.TextLabel.ManualRenderedGet();
+            internal static readonly int AsyncLineCount = Interop.TextLabel.AsyncLineCountGet();
 
 
             internal static void Preload()
-- 
2.34.1