public void StartLoading(ERollingBarStyle style = ERollingBarStyle.Default)
{
// 对当前界面复制快照图片
loadingBack = new Bitmap(this.Width, this.Height);
Graphics graphic = Graphics.FromImage(loadingBack);
graphic.CopyFromScreen(new Point(this.Location.X, this.Location.Y + this.CaptionHeight), new Point(0, 0), new Size(this.Width, this.Height - this.CaptionHeight));
graphic.Dispose();
if (maskLayer == null)
{
maskLayer = new Panel();
maskLayer.Size = new Size(this.Width, this.Height - this.CaptionHeight);
maskLayer.Location = new Point(0, this.CaptionHeight + 1);
this.Controls.Add(maskLayer);
rollingBar = new DRolling();
rollingBar.Size = new System.Drawing.Size(60, 60);
rollingBar.Location = new System.Drawing.Point((this.maskLayer.Width - 60) / 2, (this.maskLayer.Height - 60) / 2 - this.CaptionHeight);
rollingBar.SliceColor = Color.FromArgb(231, 76, 60);
rollingBar.RadiusOut = 38;
rollingBar.SliceNumber = 12;
rollingBar.Location = new System.Drawing.Point((this.maskLayer.Width - 60) / 2, (this.maskLayer.Height - 60) / 2 - this.CaptionHeight);
this.maskLayer.Controls.Add(rollingBar);
}
rollingBar.RollingStyle = style;
rollingBar.RadiusIn = style == ERollingBarStyle.Default ? 20 : 38;
rollingBar.PenWidth = style == ERollingBarStyle.Default ? 3 : 5;
this.maskLayer.Visible = true;
this.maskLayer.BringToFront();
this.maskLayer.BackgroundImage = loadingBack;
this.rollingBar.Visible = true;
this.rollingBar.BringToFront();
this.rollingBar.Start();
}
/// <summary>
/// 加载中，后台处理方法
/// </summary>
/// <param name="method"></param>
/// <param name="message"></param>
/// <returns></returns>
public bool Waiting(MethodInvoker method, ERollingBarStyle rollingStyle = ERollingBarStyle.Default, string message = "加载中，请稍后")
{
if (isWaiting)
{
return(false);
}
this.isWaiting = true;
var captionHeight = this.Caption.Height;
Size fontSize = Size.Empty;
using (Graphics g = this.CreateGraphics())
{
fontSize = Size.Ceiling(g.MeasureString(message, this.WaitingFont));
}
Rectangle rect = new Rectangle(this.Padding.Left,
this.Caption.Height,
this.Width - this.Padding.Left - this.Padding.Right,
this.Height - this.Caption.Height - this.Padding.Bottom);
waitingLayer = new Panel();
waitingLayer.Size = rect.Size;
waitingLayer.Location = rect.Location;
waitingLayer.Anchor = AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right | AnchorStyles.Top;
this.waitingLayer.BackgroundImageLayout = ImageLayout.Stretch;
this.Controls.Add(waitingLayer);
rolling = new MRolling();
rolling.Size = new System.Drawing.Size(60, 60);
rolling.Location = new Point(15, 10);
rolling.SliceColor = Color.FromArgb(231, 76, 60);
rolling.RadiusOut = 38;
rolling.SliceNumber = 12;
rolling.RollingStyle = rollingStyle;
rolling.RadiusIn = rollingStyle == ERollingBarStyle.Default ? 20 : 38;
rolling.PenWidth = rollingStyle == ERollingBarStyle.Default ? 3 : 5;
waitingInnerLayer = new MPanel();
waitingInnerLayer.Radius = 10;
waitingInnerLayer.BorderColor = Color.DarkGray;
waitingInnerLayer.BorderWidth = 1;
waitingInnerLayer.RadiusMode = RadiusMode.All;
waitingInnerLayer.BackColor = Color.White;
waitingInnerLayer.Size = new Size(rolling.Width + fontSize.Width + 42, rolling.Height + 22);
waitingInnerLayer.Location = new Point((waitingLayer.Width - waitingInnerLayer.Width) / 2, (waitingLayer.Height - waitingInnerLayer.Height) / 2 - captionHeight);
this.waitingInnerLayer.Controls.Add(rolling);
var msgLabel = new Label();
msgLabel.Font = this.WaitingFont;
msgLabel.Text = message;
msgLabel.BackColor = Color.Transparent;
msgLabel.AutoSize = true;
msgLabel.Location = new Point(15 + rolling.Width + 10, (waitingInnerLayer.Height - fontSize.Height) / 2);
this.waitingInnerLayer.Controls.Add(msgLabel);
this.waitingLayer.Controls.Add(this.waitingInnerLayer);
this.waitingLayer.BackgroundImage = CreateBacgroundImage();
this.Controls.Add(waitingLayer);
this.waitingLayer.BringToFront();
this.rolling.Start();
IAsyncResult ar = method.BeginInvoke(this.WorkComplete, method);
return(true);
}
