83 lines
3.7 KiB
C#
83 lines
3.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace JYControl
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{
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public static class ControlHelper
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{
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/// <summary>
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/// The m LST freeze control
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/// </summary>
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static Dictionary<Control, bool> m_lstFreezeControl = new Dictionary<Control, bool>();
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public static void FreezeControl(Control control, bool blnToFreeze)
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{
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if (blnToFreeze && control.IsHandleCreated && control.Visible && !control.IsDisposed && (!m_lstFreezeControl.ContainsKey(control) || (m_lstFreezeControl.ContainsKey(control) && m_lstFreezeControl[control] == false)))
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{
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m_lstFreezeControl[control] = true;
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control.Disposed += control_Disposed;
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NativeMethods.SendMessage(control.Handle, 11, 0, 0);
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}
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else if (!blnToFreeze && !control.IsDisposed && m_lstFreezeControl.ContainsKey(control) && m_lstFreezeControl[control] == true)
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{
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m_lstFreezeControl.Remove(control);
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NativeMethods.SendMessage(control.Handle, 11, 1, 0);
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control.Invalidate(true);
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}
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}
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/// <summary>
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/// Handles the Disposed event of the control control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
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static void control_Disposed(object sender, EventArgs e)
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{
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try
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{
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if (m_lstFreezeControl.ContainsKey((Control)sender))
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m_lstFreezeControl.Remove((Control)sender);
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}
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catch { }
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}
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/// <summary>
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/// 设置GDI高质量模式抗锯齿
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/// </summary>
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/// <param name="g">The g.</param>
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public static void SetGDIHigh(this Graphics g)
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{
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g.SmoothingMode = SmoothingMode.AntiAlias; //使绘图质量最高，即消除锯齿
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g.InterpolationMode = InterpolationMode.HighQualityBicubic;
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g.CompositingQuality = CompositingQuality.HighQuality;
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}
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/// <summary>
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/// 根据矩形和圆得到一个圆角矩形Path
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/// </summary>
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/// <param name="rect">The rect.</param>
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/// <param name="cornerRadius">The corner radius.</param>
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/// <returns>GraphicsPath.</returns>
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public static GraphicsPath CreateRoundedRectanglePath(this Rectangle rect, int cornerRadius)
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{
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GraphicsPath roundedRect = new GraphicsPath();
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roundedRect.AddArc(rect.X, rect.Y, cornerRadius * 2, cornerRadius * 2, 180, 90);
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roundedRect.AddLine(rect.X + cornerRadius, rect.Y, rect.Right - cornerRadius * 2, rect.Y);
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roundedRect.AddArc(rect.X + rect.Width - cornerRadius * 2, rect.Y, cornerRadius * 2, cornerRadius * 2, 270, 90);
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roundedRect.AddLine(rect.Right, rect.Y + cornerRadius * 2, rect.Right, rect.Y + rect.Height - cornerRadius * 2);
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roundedRect.AddArc(rect.X + rect.Width - cornerRadius * 2, rect.Y + rect.Height - cornerRadius * 2, cornerRadius * 2, cornerRadius * 2, 0, 90);
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roundedRect.AddLine(rect.Right - cornerRadius * 2, rect.Bottom, rect.X + cornerRadius * 2, rect.Bottom);
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roundedRect.AddArc(rect.X, rect.Bottom - cornerRadius * 2, cornerRadius * 2, cornerRadius * 2, 90, 90);
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roundedRect.AddLine(rect.X, rect.Bottom - cornerRadius * 2, rect.X, rect.Y + cornerRadius * 2);
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roundedRect.CloseFigure();
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return roundedRect;
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}
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}
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}
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