#region Imports
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using System;
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using System.ComponentModel;
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using System.ComponentModel.Design;
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using System.Drawing;
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using System.Windows.Forms;
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#endregion
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namespace DPumpHydr.WinFrmUI.RLT.Controls
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{
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#region ParrotFormDropShadow
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public class ParrotFormDropShadow : Component
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{
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public ParrotFormDropShadow()
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{
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RefreshUI.Interval = 250;
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RefreshUI.Tick += RefreshUI_Tick;
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RefreshUI.Enabled = true;
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}
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public override ISite Site
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{
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get => base.Site;
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set
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{
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base.Site = value;
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if (value == null)
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{
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return;
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}
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if (value.GetService(typeof(IDesignerHost)) is IDesignerHost designerHost)
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{
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IComponent rootComponent = designerHost.RootComponent;
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if (rootComponent is ContainerControl)
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{
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EffectedForm = rootComponent as Form;
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}
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}
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}
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}
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private void RefreshUI_Tick(object sender, EventArgs e)
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{
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try
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{
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Mainform_Shown(null, null);
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EffectedForm.Shown += Mainform_Shown;
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EffectedForm.Resize += Mainform_Resize;
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EffectedForm.LocationChanged += Mainform_Resize;
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RefreshUI.Enabled = false;
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RefreshUI.Dispose();
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}
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catch
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{
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}
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}
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protected override void Dispose(bool disposing)
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{
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base.Dispose(disposing);
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ds.Dispose();
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}
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[Category("Parrot")]
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[Browsable(true)]
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[Description("Change the shadow angle, sorry this option is trial and error")]
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public int ShadowAngle { get; set; } = 2;
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[Category("Parrot")]
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[Browsable(true)]
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[Description("The effected form(will remove ellipse from effected control)")]
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public Form EffectedForm { get; set; }
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private void Mainform_Shown(object sender, EventArgs e)
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{
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Rectangle bounds = EffectedForm.Bounds;
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ds.Bounds = bounds;
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ds.Location = new Point(EffectedForm.Location.X + ShadowAngle, EffectedForm.Location.Y + ShadowAngle);
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ds.Show();
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EffectedForm.BringToFront();
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}
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private void Mainform_Resize(object sender, EventArgs e)
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{
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ds.Visible = EffectedForm.WindowState == FormWindowState.Normal;
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if (ds.Visible)
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{
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Rectangle bounds = EffectedForm.Bounds;
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ds.Bounds = bounds;
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ds.Location = new Point(EffectedForm.Location.X + ShadowAngle, EffectedForm.Location.Y + ShadowAngle);
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}
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EffectedForm.BringToFront();
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}
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private readonly Timer RefreshUI = new();
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private readonly DropShadow ds = new();
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public class DropShadow : Form
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{
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public DropShadow()
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{
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BackColor = Color.Black;
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base.Opacity = 0.3;
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base.ShowInTaskbar = false;
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base.FormBorderStyle = FormBorderStyle.None;
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base.StartPosition = FormStartPosition.Manual;
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}
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protected override CreateParams CreateParams
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{
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get
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{
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CreateParams createParams = base.CreateParams;
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createParams.ExStyle = createParams.ExStyle | WS_EX_TRANSPARENT | WS_EX_NOACTIVATE;
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return createParams;
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}
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}
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private const int WS_EX_TRANSPARENT = 32;
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private const int WS_EX_NOACTIVATE = 134217728;
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}
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}
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#endregion
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}
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