About the Create a custom raster function Sample
[C#]
WatermarkFunctionUIForm.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using ESRI.ArcGIS.Catalog;
using ESRI.ArcGIS.CatalogUI;
using ESRI.ArcGIS.DataSourcesRaster;
using ESRI.ArcGIS.Geodatabase;
using ESRI.ArcGIS.esriSystem;
namespace CustomFunctionUI
{
public partial class WatermarkFunctionUIForm : Form
{
#region Private Members
private object myInputRaster;
private string myWaterMarkImagePath;
private double myBlendPercentage;
private bool myDirtyFlag;
#endregion
#region WatermarkFunctionUIForm Properties
/// <summary>
/// Constructor
/// </summary>
public WatermarkFunctionUIForm()
{
InitializeComponent();
myInputRaster = null;
myWaterMarkImagePath = "";
myBlendPercentage = 0.0;
}
/// <summary>
/// Get or set the watermark image path
/// </summary>
public string WatermarkImagePath
{
get
{
myWaterMarkImagePath = watermarkImageTxtbox.Text;
return myWaterMarkImagePath;
}
set
{
myWaterMarkImagePath = value;
watermarkImageTxtbox.Text = value;
}
}
/// <summary>
/// Flag to specify if the form has changed
/// </summary>
public bool IsFormDirty
{
get
{
return myDirtyFlag;
}
set
{
myDirtyFlag = value;
}
}
/// <summary>
/// Get or set the input raster
/// </summary>
public object InputRaster
{
get
{
return myInputRaster;
}
set
{
myInputRaster = value;
inputRasterTxtbox.Text = GetInputRasterName(myInputRaster);
}
}
/// <summary>
/// Get or set the blending percentage
/// </summary>
public double BlendPercentage
{
get
{
if (blendPercentTxtbox.Text == "")
blendPercentTxtbox.Text = "50.00";
myBlendPercentage = Convert.ToDouble(blendPercentTxtbox.Text);
return myBlendPercentage;
}
set
{
myBlendPercentage = value;
blendPercentTxtbox.Text = Convert.ToString(value);
}
}
#endregion
#region WatermarkFunctionUIForm Members
/// <summary>
/// This function takes a raster object and returns the formatted name of
/// the object for display in the UI.
/// </summary>
/// <param name="inputRaster">Object whose name is to be found</param>
/// <returns>Name of the object</returns>
private string GetInputRasterName(object inputRaster)
{
if ((inputRaster is IRasterDataset))
{
IRasterDataset rasterDataset = (IRasterDataset)inputRaster;
return rasterDataset.CompleteName;
}
if (inputRaster is IName)
{
if (inputRaster is IDatasetName)
{
IDatasetName inputDSName = (IDatasetName)inputRaster;
return inputDSName.Name;
}
if (inputRaster is IFunctionRasterDatasetName)
{
IFunctionRasterDatasetName inputFRDName = (IFunctionRasterDatasetName)inputRaster;
return inputFRDName.BrowseName;
}
if (inputRaster is IMosaicDatasetName)
{
IMosaicDatasetName inputMDName = (IMosaicDatasetName)inputRaster;
return "MD";
}
IName inputName = (IName)inputRaster;
return inputName.NameString;
}
else if (inputRaster is IRasterFunctionTemplate)
{
IRasterFunctionTemplate rasterFunctionTemplate =
(IRasterFunctionTemplate)inputRaster;
return rasterFunctionTemplate.Function.Name;
}
else if (inputRaster is IRasterFunctionVariable)
{
IRasterFunctionVariable rasterFunctionVariable =
(IRasterFunctionVariable)inputRaster;
return rasterFunctionVariable.Name;
}
return "";
}
/// <summary>
/// Updates the UI textboxes using the properties that have been set.
/// </summary>
public void UpdateUI()
{
if (myInputRaster != null)
inputRasterTxtbox.Text = GetInputRasterName(myInputRaster);
blendPercentTxtbox.Text = Convert.ToString(myBlendPercentage);
watermarkImageTxtbox.Text = myWaterMarkImagePath;
}
private void inputRasterBtn_Click(object sender, EventArgs e)
{
IEnumGxObject ipSelectedObjects = null;
ShowRasterDatasetBrowser((int)(Handle.ToInt32()), out ipSelectedObjects);
IGxObject selectedObject = ipSelectedObjects.Next();
if (selectedObject is IGxDataset)
{
IGxDataset ipGxDS = (IGxDataset)selectedObject;
IDataset ipDataset;
ipDataset = ipGxDS.Dataset;
myInputRaster = ipDataset.FullName;
inputRasterTxtbox.Text = GetInputRasterName(myInputRaster);
myDirtyFlag = true;
}
}
public void ShowRasterDatasetBrowser(int handle, out IEnumGxObject ipSelectedObjects)
{
IGxObjectFilterCollection ipFilterCollection = new GxDialogClass();
IGxObjectFilter ipFilter1 = new GxFilterRasterDatasetsClass();
ipFilterCollection.AddFilter(ipFilter1, true);
IGxDialog ipGxDialog = (IGxDialog)(ipFilterCollection);
ipGxDialog.RememberLocation = true;
ipGxDialog.Title = "Open";
ipGxDialog.AllowMultiSelect = false;
ipGxDialog.RememberLocation = true;
ipGxDialog.DoModalOpen((int)(Handle.ToInt32()), out ipSelectedObjects);
return;
}
private void watermarkImageBtn_Click(object sender, EventArgs e)
{
watermarkImageDlg.ShowDialog();
if (watermarkImageDlg.FileName != "")
{
watermarkImageTxtbox.Text = watermarkImageDlg.FileName;
myDirtyFlag = true;
}
}
private void blendPercentTxtbox_ModifiedChanged(object sender, EventArgs e)
{
if (blendPercentTxtbox.Text != "")
{
myBlendPercentage = Convert.ToDouble(blendPercentTxtbox.Text);
myDirtyFlag = true;
}
}
#endregion
}
}
[Visual Basic .NET]
WatermarkFunctionUIForm.vb
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Linq
Imports System.Text
Imports System.Windows.Forms
Imports ESRI.ArcGIS.Catalog
Imports ESRI.ArcGIS.CatalogUI
Imports ESRI.ArcGIS.DataSourcesRaster
Imports ESRI.ArcGIS.Geodatabase
Imports ESRI.ArcGIS.esriSystem
Namespace CustomFunction
Partial Public Class WatermarkFunctionUIForm
Inherits Form
#Region "Private Members"
Private myInputRaster As Object
Private myWaterMarkImagePath As String
Private myBlendPercentage As Double
Private myDirtyFlag As Boolean
#End Region
#Region "WatermarkFunctionUIForm Properties"
''' <summary>
''' Constructor
''' </summary>
Public Sub New()
InitializeComponent()
myInputRaster = Nothing
myWaterMarkImagePath = ""
myBlendPercentage = 0.0
End Sub
''' <summary>
''' Get or set the watermark image path
''' </summary>
Public Property WatermarkImagePath() As String
Get
myWaterMarkImagePath = watermarkImageTxtbox.Text
Return myWaterMarkImagePath
End Get
Set(ByVal value As String)
myWaterMarkImagePath = value
watermarkImageTxtbox.Text = value
End Set
End Property
''' <summary>
''' Flag to specify if the form has changed
''' </summary>
Public Property IsFormDirty() As Boolean
Get
Return myDirtyFlag
End Get
Set(ByVal value As Boolean)
myDirtyFlag = value
End Set
End Property
''' <summary>
''' Get or set the input raster
''' </summary>
Public Property InputRaster() As Object
Get
Return myInputRaster
End Get
Set(ByVal value As Object)
myInputRaster = value
inputRasterTxtbox.Text = GetInputRasterName(myInputRaster)
End Set
End Property
''' <summary>
''' Get or set the blending percentage
''' </summary>
Public Property BlendPercentage() As Double
Get
If blendPercentTxtbox.Text = "" Then
blendPercentTxtbox.Text = "50.00"
End If
myBlendPercentage = Convert.ToDouble(blendPercentTxtbox.Text)
Return myBlendPercentage
End Get
Set(ByVal value As Double)
myBlendPercentage = value
blendPercentTxtbox.Text = Convert.ToString(value)
End Set
End Property
#End Region
#Region "WatermarkFunctionUIForm Members"
''' <summary>
''' This function takes a raster object and returns the formatted name of
''' the object for display in the UI.
''' </summary>
''' <param name="inputRaster">Object whose name is to be found</param>
''' <returns>Name of the object</returns>
Private Function GetInputRasterName(ByVal inputRaster As Object) As String
If (TypeOf inputRaster Is IRasterDataset) Then
Dim rasterDataset As IRasterDataset = DirectCast(inputRaster, IRasterDataset)
Return rasterDataset.CompleteName
End If
If TypeOf inputRaster Is IName Then
If TypeOf inputRaster Is IDatasetName Then
Dim inputDSName As IDatasetName = DirectCast(inputRaster, IDatasetName)
Return inputDSName.Name
End If
If TypeOf inputRaster Is IFunctionRasterDatasetName Then
Dim inputFRDName As IFunctionRasterDatasetName = DirectCast(inputRaster, IFunctionRasterDatasetName)
Return inputFRDName.BrowseName
End If
If TypeOf inputRaster Is IMosaicDatasetName Then
Dim inputMDName As IMosaicDatasetName = DirectCast(inputRaster, IMosaicDatasetName)
Return "MD"
End If
Dim inputName As IName = DirectCast(inputRaster, IName)
Return inputName.NameString
ElseIf TypeOf inputRaster Is IRasterFunctionTemplate Then
Dim rasterFunctionTemplate As IRasterFunctionTemplate = DirectCast(inputRaster, IRasterFunctionTemplate)
Return rasterFunctionTemplate.[Function].Name
ElseIf TypeOf inputRaster Is IRasterFunctionVariable Then
Dim rasterFunctionVariable As IRasterFunctionVariable = DirectCast(inputRaster, IRasterFunctionVariable)
Return rasterFunctionVariable.Name
End If
Return ""
End Function
''' <summary>
''' Updates the UI textboxes using the properties that have been set.
''' </summary>
Public Sub UpdateUI()
If myInputRaster IsNot Nothing Then
inputRasterTxtbox.Text = GetInputRasterName(myInputRaster)
End If
blendPercentTxtbox.Text = Convert.ToString(myBlendPercentage)
watermarkImageTxtbox.Text = myWaterMarkImagePath
End Sub
Private Sub inputRasterBtn_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim ipSelectedObjects As IEnumGxObject = Nothing
ShowRasterDatasetBrowser(CInt(Handle.ToInt32()), ipSelectedObjects)
Dim selectedObject As IGxObject = ipSelectedObjects.[Next]()
If TypeOf selectedObject Is IGxDataset Then
Dim ipGxDS As IGxDataset = DirectCast(selectedObject, IGxDataset)
Dim ipDataset As IDataset
ipDataset = ipGxDS.Dataset
myInputRaster = ipDataset.FullName
inputRasterTxtbox.Text = GetInputRasterName(myInputRaster)
myDirtyFlag = True
End If
End Sub
Public Sub ShowRasterDatasetBrowser(ByVal handle__1 As Integer, ByRef ipSelectedObjects As IEnumGxObject)
Dim ipFilterCollection As IGxObjectFilterCollection = New GxDialogClass()
Dim ipFilter1 As IGxObjectFilter = New GxFilterRasterDatasetsClass()
ipFilterCollection.AddFilter(ipFilter1, True)
Dim ipGxDialog As IGxDialog = DirectCast(ipFilterCollection, IGxDialog)
ipGxDialog.RememberLocation = True
ipGxDialog.Title = "Open"
ipGxDialog.AllowMultiSelect = False
ipGxDialog.RememberLocation = True
ipGxDialog.DoModalOpen(CInt(Handle.ToInt32()), ipSelectedObjects)
Return
End Sub
Private Sub watermarkImageBtn_Click(ByVal sender As Object, ByVal e As EventArgs)
watermarkImageDlg.ShowDialog()
If watermarkImageDlg.FileName <> "" Then
watermarkImageTxtbox.Text = watermarkImageDlg.FileName
myDirtyFlag = True
End If
End Sub
Private Sub blendPercentTxtbox_ModifiedChanged(ByVal sender As Object, ByVal e As EventArgs)
If blendPercentTxtbox.Text <> "" Then
myBlendPercentage = Convert.ToDouble(blendPercentTxtbox.Text)
myDirtyFlag = True
End If
End Sub
#End Region
End Class
End Namespace