136 lines
4.3 KiB
VB.net
136 lines
4.3 KiB
VB.net
#Region "Microsoft.VisualBasic::6438eb51b688ea913d00f1f902d80fb5, Microsoft.VisualBasic.Core\ApplicationServices\Terminal\Utility\CBusyIndicator.vb"
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' Author:
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'
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' asuka (amethyst.asuka@gcmodeller.org)
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' xie (genetics@smrucc.org)
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' xieguigang (xie.guigang@live.com)
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'
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' Copyright (c) 2018 GPL3 Licensed
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'
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'
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' GNU GENERAL PUBLIC LICENSE (GPL3)
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'
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'
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' This program is free software: you can redistribute it and/or modify
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' it under the terms of the GNU General Public License as published by
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' the Free Software Foundation, either version 3 of the License, or
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' (at your option) any later version.
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'
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' This program is distributed in the hope that it will be useful,
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' but WITHOUT ANY WARRANTY; without even the implied warranty of
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' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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' GNU General Public License for more details.
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'
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' You should have received a copy of the GNU General Public License
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' along with this program. If not, see <http://www.gnu.org/licenses/>.
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' /********************************************************************************/
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' Summaries:
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' Class CBusyIndicator
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'
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' Constructor: (+1 Overloads) Sub New
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' Sub: [Stop], (+2 Overloads) Dispose, DoEvents, Start
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'
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'
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' /********************************************************************************/
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#End Region
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Imports System.Threading
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Imports Microsoft.VisualBasic.Parallel
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Namespace ApplicationServices.Terminal.Utility
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''' <summary>
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''' The console BusyIndicator
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''' </summary>
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Public Class CBusyIndicator : Implements IDisposable
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Dim _indicatorStyle As Char
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Dim _onRunningState As Boolean = False
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Dim _ticksCount As Integer
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Sub New(Optional indicatorStyle As Char = "."c, Optional start As Boolean = False, Optional ticks As Integer = -1)
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_indicatorStyle = indicatorStyle
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If start Then
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Call Me.Start(ticks)
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End If
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End Sub
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Private Sub DoEvents()
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Do While _onRunningState = True
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Call Thread.Sleep(1000)
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Call STDIO.Write(_indicatorStyle)
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If _ticksCount > 0 Then
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_ticksCount -= 1
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Else
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If _ticksCount <> -1 Then
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_onRunningState = False
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End If
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End If
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Loop
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End Sub
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''' <summary>
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''' 运行进度条
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''' </summary>
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''' <param name="Ticks">The total ticking counts of the indicator, Unit is [second].</param>
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''' <remarks></remarks>
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Public Sub Start(Optional Ticks As Integer = -1)
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If _onRunningState = True Then
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Return
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End If
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_ticksCount = Ticks
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_onRunningState = True
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Call RunTask(AddressOf DoEvents)
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End Sub
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Public Sub [Stop]()
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_onRunningState = False
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End Sub
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#Region "IDisposable Support"
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Private disposedValue As Boolean ' To detect redundant calls
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' IDisposable
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Protected Overridable Sub Dispose(disposing As Boolean)
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If Not Me.disposedValue Then
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If disposing Then
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' TODO: dispose managed state (managed objects).
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_onRunningState = False
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End If
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' TODO: free unmanaged resources (unmanaged objects) and override Finalize() below.
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' TODO: set large fields to null.
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End If
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Me.disposedValue = True
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End Sub
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' TODO: override Finalize() only if Dispose( disposing As Boolean) above has code to free unmanaged resources.
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'Protected Overrides Sub Finalize()
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' ' Do not change this code. Put cleanup code in Dispose( disposing As Boolean) above.
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' Dispose(False)
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' MyBase.Finalize()
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'End Sub
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' This code added by Visual Basic to correctly implement the disposable pattern.
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Public Sub Dispose() Implements IDisposable.Dispose
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' Do not change this code. Put cleanup code in Dispose(disposing As Boolean) above.
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Dispose(True)
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GC.SuppressFinalize(Me)
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End Sub
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#End Region
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End Class
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End Namespace
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