ChartDirectorArea Source

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Class App
Inherits Application
  // Constants
  Const kFileQuitShortcut = Ctrl+Q
  Const kFileQuit = E&xit
  Const kEditClear = &Delete
End Class

Class Window1
Inherits Window
  // Controls
  ControlInstance
  End ControlInstance
  ControlInstance
  End ControlInstance
  ControlInstance
  End ControlInstance
  ControlInstance
  End ControlInstance
  ControlInstance
    Sub Action() Handles Event
      update
    End Sub
  End ControlInstance
  
  // Properties
  Dim last As darwinvmStatisticsMBS
  Dim CPUUser(59) As double
  Dim CPUIdle(59) As double
  Dim CPUSystem(59) As double
  
  // Event implementations
  Sub Open()
    last=GetDarwinVMStatisticsMBS
    
  End Sub
  
  // Methods
  Sub Update()
    dim d as DarwinVMStatisticsMBS
    
    d=GetDarwinVMStatisticsMBS
    
    dim System,User,Idle as integer
    
    System=d.CPUTicksSystem-last.CPUTicksSystem
    User=d.CPUTicksUser-last.CPUTicksUser
    idle=d.CPUTicksIdle-last.CPUTicksIdle
    
    StaticText1.text="System: "+Format(System,"0")
    StaticText2.text="User: "+Format(user,"0")
    StaticText3.text="Idle: "+Format(Idle,"0")
    
    last=d
    
    dim total as double
    
    total=user+idle+System
    
    CPUUser.Append 100.0*user/total
    CPUIdle.Append 100.0*idle/total
    CPUSystem.Append 100.0*System/total
    
    CPUUser.Remove 0
    CPUSystem.Remove 0
    CPUIdle.Remove 0
    
    dim c as new CDXYChartMBS(Canvas1.Width, canvas1.Height, &hFFFFC0, &h000000)
    
    c.setPlotArea(50,30,canvas1.Width-80, canvas1.Height-60).setBackground(&hFFFFFF)
    c.addLegend(50,canvas1.Height-30, false,"",8).setBackground(CDXYChartMBS.kTransparent)
    
    c.addTitle("CPU Usage", "arialbd.ttf", 8).setBackground(&hFFFF40, 0)
    
    c.yAxis.setLinearScale 0,100
    c.yAxis.setLabelFormat "{value}%"
    
    dim layer as CDAreaLayerMBS
    layer=c.addAreaLayer(CDXYChartMBS.kStack)
    
    call layer.addDataSet(CPUUser, &h4040FF, "User")
    call layer.addDataSet(CPUSystem, &hFF4040, "System")
    call layer.addDataSet(CPUIdle, &h40FF40, "Idle")
    
    canvas1.Backdrop=c.makeChartPicture
    
  End Sub
End Class


 

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