Material Scrim

MaterialSkin/Controls/FlexibleMaterialDialog.cs

@@ -842,7 +842,12 @@ public static DialogResult Show(IWin32Window owner, string text, string caption,
             //Moved after SetDialogSizes() because it needs Dialog.Width property set.
             SetDialogButtons(FlexibleMaterialForm, buttons, defaultButton, buttonsPosition);
             //Show the dialog
-            return FlexibleMaterialForm.ShowDialog(owner);
+            var form = owner as Form;
+
+            form?.ShowScrim();
+            var dialogResult = FlexibleMaterialForm.ShowDialog(owner);
+            form?.HideScrim();
+            return dialogResult;
         }
 
         private void FlexibleMaterialForm_Load(object sender, EventArgs e)

MaterialSkin/Controls/MaterialForm.cs

@@ -390,7 +390,7 @@ private bool Maximized
         private Point _animationSource;
         private Padding originalPadding;
 
-        private Form drawerOverlay = new Form();
+        private DrawerScrim drawerOverlay;
         private Form drawerForm = new Form();
 
         // Drawer overlay and speed improvements
@@ -458,30 +458,17 @@ protected void AddDrawerOverlayForm()
                 Increment = 0.04
             };
 
+            // Overlay Form definitions
+            drawerOverlay = new DrawerScrim(this);
+
             _drawerShowHideAnimManager.OnAnimationProgress += (sender) =>
             {
-                drawerOverlay.Opacity = (float)(_drawerShowHideAnimManager.GetProgress() * 0.55f);
+                drawerOverlay.Opacity = _drawerShowHideAnimManager.GetProgress() * 0.55;
             };
 
             int H = ClientSize.Height - _statusBarBounds.Height - _actionBarBounds.Height;
             int Y = PointToScreen(Point.Empty).Y + _statusBarBounds.Height + _actionBarBounds.Height;
 
-            // Overlay Form definitions
-            drawerOverlay.BackColor = Color.Black;
-            drawerOverlay.Opacity = 0;
-            drawerOverlay.MinimizeBox = false;
-            drawerOverlay.MaximizeBox = false;
-            drawerOverlay.Text = "";
-            drawerOverlay.ShowIcon = false;
-            drawerOverlay.ControlBox = false;
-            drawerOverlay.FormBorderStyle = FormBorderStyle.None;
-            drawerOverlay.Visible = true;
-            drawerOverlay.Size = new Size(ClientSize.Width, H);
-            drawerOverlay.Location = new Point(PointToScreen(Point.Empty).X, Y);
-            drawerOverlay.ShowInTaskbar = false;
-            drawerOverlay.Owner = this;
-            drawerOverlay.Anchor = AnchorStyles.Left | AnchorStyles.Top | AnchorStyles.Right | AnchorStyles.Bottom;
-
             // Drawer Form definitions
             drawerForm.BackColor = Color.LimeGreen;
             drawerForm.TransparencyKey = Color.LimeGreen;
@@ -536,14 +523,12 @@ protected void AddDrawerOverlayForm()
             {
                 H = ClientSize.Height - _statusBarBounds.Height - _actionBarBounds.Height;
                 drawerForm.Size = new Size(DrawerWidth, H);
-                drawerOverlay.Size = new Size(ClientSize.Width, H);
             };
 
             Move += (sender, e) =>
             {
                 Point pos = new Point(PointToScreen(Point.Empty).X, PointToScreen(Point.Empty).Y + _statusBarBounds.Height + _actionBarBounds.Height);
                 drawerForm.Location = pos;
-                drawerOverlay.Location = pos;
             };
 
             // Close when click outside menu
@@ -597,7 +582,6 @@ protected void AddDrawerOverlayForm()
             FixFormPadding(this);
 
             // Fix Closing the Drawer or Overlay form with Alt+F4 not exiting the app
-            drawerOverlay.FormClosed += TerminateOnClose;
             drawerForm.FormClosed += TerminateOnClose;
         }
 

MaterialSkin/Controls/MaterialScrim.cs

@@ -0,0 +1,109 @@
+using System;
+using System.Drawing;
+using System.Linq;
+using System.Windows.Forms;
+
+namespace MaterialSkin.Controls
+{
+    public class MaterialScrim : Form
+    {
+        public new double Opacity
+        {
+            get => base.Opacity;
+            set
+            {
+                if (value == base.Opacity) return;
+
+                Visible = value != 0;
+                base.Opacity = value;
+            }
+        }
+
+        public MaterialScrim(Form owner)
+        {
+            InitializeComponent();
+
+            Owner = owner ?? throw new ArgumentNullException(nameof(owner));
+            Size = Owner.Size;
+            Location = Owner.Location;
+
+            Owner.Resize += (sender, e) => OnResize(e);
+            Owner.Move += (sender, e) => OnMove(e);
+            Owner.FormClosed += (sender, e) => OnFormClosed(e);
+            Owner.Disposed += (sender, e) => Dispose();
+            Owner.VisibleChanged += (sender, e) => OnVisibleChanged(e);
+        }
+
+        private void InitializeComponent()
+        {
+            BackColor = Color.Black;
+            Opacity = 0;
+            MinimizeBox = false;
+            MaximizeBox = false;
+            ShowIcon = false;
+            ControlBox = false;
+            Text = string.Empty;
+            FormBorderStyle = FormBorderStyle.None;
+            ShowInTaskbar = false;
+        }
+
+        public new void Show() => Opacity = 0.55;
+
+        public new void Hide() => Opacity = 0;
+
+        protected override void OnResize(EventArgs e)
+        {
+            if (Owner == null) return;
+            Size = Owner.Size;
+        }
+
+        protected override void OnMove(EventArgs e)
+        {
+            if (Owner == null) return;
+            Location = Owner.Location;
+        }
+    }
+
+    public static class ScrimExtensions
+    {
+        public static void ShowScrim(this Form form) => GetScrim(form).Show();
+
+        public static void HideScrim(this Form form) => GetScrim(form).Hide();
+
+        private static MaterialScrim GetScrim(Form form)
+        {
+            var scrims = form.OwnedForms.Where(f => f is MaterialScrim);
+            MaterialScrim scrim;
+
+            if (!scrims.Any())
+                scrim = new MaterialScrim(form);
+            else
+                scrim = scrims.First() as MaterialScrim;
+
+            return scrim;
+        }
+    }
+
+    public class DrawerScrim : MaterialScrim
+    {
+        public DrawerScrim(MaterialForm owner) : base(owner)
+        {
+            var rect = owner.RectangleToScreen(owner.UserArea);
+
+            Size = rect.Size;
+            Location = rect.Location;
+        }
+
+        protected override void OnResize(EventArgs e)
+        {
+            if (Owner == null) return;
+            Size = (Owner as MaterialForm).UserArea.Size;
+        }
+
+        protected override void OnMove(EventArgs e)
+        {
+            if (Owner == null) return;
+            Location = Owner.RectangleToScreen((Owner as MaterialForm).UserArea).Location;
+        }
+    }
+}

MaterialSkin/MaterialSkin.csproj

@@ -53,6 +53,9 @@
     <Compile Include="Controls\MaterialListBox.cs">
       <SubType>Component</SubType>
     </Compile>
+    <Compile Include="Controls\MaterialScrim.cs">
+      <SubType>Form</SubType>
+    </Compile>
     <Compile Include="Controls\MaterialScrollBar.cs">
       <SubType>Component</SubType>
     </Compile>