' Copyright 2012 ESRI
' 
' All rights reserved under the copyright laws of the United States
' and applicable international laws, treaties, and conventions.
' 
' You may freely redistribute and use this sample code, with or
' without modification, provided you include the original copyright
' notice and use restrictions.
' 
' See the use restrictions.
' 

Imports ESRI.ArcGIS.Analyst3D
Imports ESRI.ArcGIS.Controls
Imports ESRI.ArcGIS.ADF.BaseClasses
Imports ESRI.ArcGIS.ADF.CATIDs
Imports System.Runtime.InteropServices

<ComClass(FullExtent.ClassId, FullExtent.InterfaceId, FullExtent.EventsId)> _
Public NotInheritable Class FullExtent
    Inherits BaseCommand

#Region "COM GUIDs"
    ' These  GUIDs provide the COM identity for this class 
    ' and its COM interfaces. If you change them, existing 
    ' clients will no longer be able to access the class.
    Public Const ClassId As String = "6E79535D-C62B-4C4F-8693-F50E56EB4A62"
    Public Const InterfaceId As String = "ECCFB42F-DFEF-4DDD-BB5B-6A6C4E7D26CA"
    Public Const EventsId As String = "AE70E9E5-EDDA-4DB4-9C4B-069A55B7846D"
#End Region
#Region "COM Registration Function(s)"
    <ComRegisterFunction(), ComVisibleAttribute(False)> _
    Public Shared Sub RegisterFunction(ByVal registerType As Type)
        ' Required for ArcGIS Component Category Registrar support
        ArcGISCategoryRegistration(registerType)

        'Add any COM registration code after the ArcGISCategoryRegistration() call

    End Sub

    <ComUnregisterFunction(), ComVisibleAttribute(False)> _
    Public Shared Sub UnregisterFunction(ByVal registerType As Type)
        ' Required for ArcGIS Component Category Registrar support
        ArcGISCategoryUnregistration(registerType)

        'Add any COM unregistration code after the ArcGISCategoryUnregistration() call

    End Sub

#Region "ArcGIS Component Category Registrar generated code"
    ''' <summary>
    ''' Required method for ArcGIS Component Category registration -
    ''' Do not modify the contents of this method with the code editor.
    ''' </summary>
    Private Shared Sub ArcGISCategoryRegistration(ByVal registerType As Type)
        Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID)
        ControlsCommands.Register(regKey)

    End Sub
    ''' <summary>
    ''' Required method for ArcGIS Component Category unregistration -
    ''' Do not modify the contents of this method with the code editor.
    ''' </summary>
    Private Shared Sub ArcGISCategoryUnregistration(ByVal registerType As Type)
        Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID)
        ControlsCommands.Unregister(regKey)

    End Sub

#End Region
#End Region

    Private m_pSceneHookHelper As ISceneHookHelper

  ' A creatable COM class must have a Public Sub New() 
  ' with no parameters, otherwise, the class will not be 
  ' registered in the COM registry and cannot be created 
  ' via CreateObject.
    Public Sub New()
        MyBase.New()

        MyBase.m_category = "Sample_SceneControl(VB.NET)"
        MyBase.m_caption = "Full Extent"
        MyBase.m_toolTip = "Full Extent"
        MyBase.m_name = "Sample_SceneControl(VB.NET)/FullExtent"
        MyBase.m_message = "Displays the scene at full extent"

        'Load resources
        Dim res() As String = GetType(FullExtent).Assembly.GetManifestResourceNames()
        If res.GetLength(0) > 0 Then
            MyBase.m_bitmap = New System.Drawing.Bitmap(GetType(FullExtent).Assembly.GetManifestResourceStream("SceneToolsVB.fullextent.bmp"))
        End If
        m_pSceneHookHelper = New SceneHookHelperClass
    End Sub

    Public Overrides Sub OnCreate(ByVal hook As Object)
        m_pSceneHookHelper.Hook = hook
    End Sub

    Public Overrides ReadOnly Property Enabled() As Boolean
        Get
            If (m_pSceneHookHelper.Hook Is Nothing Or m_pSceneHookHelper.Scene Is Nothing) Then
                Return False
            Else
                Return True
            End If
        End Get
    End Property

    Public Overrides Sub OnClick()
        'Get the scene graph
        Dim pSceneGraph As ISceneGraph = CType(m_pSceneHookHelper.SceneGraph, ISceneGraph)

        'Get the scene viewer's camera
        Dim pCamera As ICamera = CType(m_pSceneHookHelper.Camera, ICamera)

        'Position the camera to see the full extent of the scene graph
        pCamera.SetDefaultsMBB(pSceneGraph.Extent)

        'Redraw the scene viewer
        pSceneGraph.ActiveViewer.Redraw(True)
    End Sub
End Class