Ensure framebuffer resizes one dimension at a time

Fixes bonsai-rx#913
glopesdev · May 29, 2022 · f4f8d53 · f4f8d53
1 parent 363e4c5
commit f4f8d53
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Showing 2 changed files with 24 additions and 1 deletion.
diff --git a/Bonsai.Vision.Design/VisualizerCanvas.cs b/Bonsai.Vision.Design/VisualizerCanvas.cs
@@ -15,6 +15,8 @@ public partial class VisualizerCanvas : UserControl
     {
         bool loaded;
         bool disposed;
+        bool resizing;
+        bool resizeWidth;
         static readonly object syncRoot = string.Intern("A1105A50-BBB0-4EC6-B8B2-B5EF38A9CC3E");
 
         /// <summary>
@@ -81,10 +83,32 @@ private void canvas_Paint(object sender, PaintEventArgs e)
             lock (syncRoot)
             {
                 canvas.SwapBuffers();
+                if (resizing)
+                {
+                    resizing = false;
+                    resizeWidth = !resizeWidth;
+                    if (canvas.Size != Size)
+                    {
+                        OnResize(EventArgs.Empty);
+                    }
+                }
             }
             OnSwapBuffers(e);
         }
 
+        protected override void OnResize(EventArgs e)
+        {
+            var partialResize = canvas.Width == Width || canvas.Height == Height;
+            if (!loaded || partialResize) canvas.Size = Size;
+            else
+            {
+                if (resizeWidth) canvas.Size = new Size(Width, canvas.Height);
+                else canvas.Size = new Size(canvas.Width, Height);
+                resizing = true;
+            }
+            base.OnResize(e);
+        }
+
         /// <summary>
         /// Raises the <see cref="RenderFrame"/> event.
         /// </summary>

diff --git a/Bonsai.Vision.Design/VisualizerCanvas.designer.cs b/Bonsai.Vision.Design/VisualizerCanvas.designer.cs