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'*****************************************************************************
' $Id: GDALColorTable.cls,v 1.3 2005/08/04 20:53:51 fwarmerdam Exp $
'
' Project: GDAL VB6 Bindings
' Purpose: VB6 GDALColorTable Shadow Class.
' Author: Frank Warmerdam, warmerdam@pobox.com
'
'*****************************************************************************
' Copyright (c) 2005, Frank Warmerdam <warmerdam@pobox.com>
'
' Permission is hereby granted, free of charge, to any person obtaining a
' copy of this software and associated documentation files (the "Software"),
' to deal in the Software without restriction, including without limitation
' the rights to use, copy, modify, merge, publish, distribute, sublicense,
' and/or sell copies of the Software, and to permit persons to whom the
' Software is furnished to do so, subject to the following conditions:
'
' The above copyright notice and this permission notice shall be included
' in all copies or substantial portions of the Software.
'
' THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
' OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
' FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
' THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
' LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
' FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
' DEALINGS IN THE SOFTWARE.
'*****************************************************************************
'
' $Log: GDALColorTable.cls,v $
' Revision 1.3 2005/08/04 20:53:51 fwarmerdam
' convert to DOS text mode
'
' Revision 1.2 2005/04/08 14:36:25 fwarmerdam
' applied owned flag, and auto-destroy
'
' Revision 1.1 2005/03/16 23:34:27 fwarmerdam
' new
'
'
VERSION 1.0 CLASS
BEGIN
MultiUse = -1 'True
Persistable = 0 'NotPersistable
DataBindingBehavior = 0 'vbNone
DataSourceBehavior = 0 'vbNone
MTSTransactionMode = 0 'NotAnMTSObject
END
Attribute VB_Name = "GDALColorTable"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Option Explicit
Private obj As Long
Private owned As Long
Public EntryCount As Long
Public PaletteInterpretation As Long
' ----------------------------------------------------------------------------
Private Sub Class_Initialize()
obj = 0
owned = 0
EntryCount = 0
PaletteInterpretation = 0
End Sub
' ----------------------------------------------------------------------------
Private Sub Class_Terminate()
If obj <> 0 and owned <> 0 Then
call Destroy()
End If
End Sub
' ----------------------------------------------------------------------------
Public Sub CInit(obj_in As Long, owned_in As Long )
if obj <> 0 and owned <> 0 Then
Call Destroy()
End If
obj = obj_in
owned = owned_in
If obj <> 0 Then
EntryCount = GDALCore.GDALGetColorEntryCount(obj)
PaletteInterpretation = GDALCore.GDALGetPaletteInterpretation(obj)
End If
End Sub
' ----------------------------------------------------------------------------
Public Sub Destroy()
If obj <> 0 Then
'Call MsgBox( "Destroying ColorTable" )
Call GDALCore.GDALDestroyColorTable( obj )
obj = 0
owned = 0
End If
End Sub
' ----------------------------------------------------------------------------
Public Function GetObjPtr() As Long
GetObjPtr = obj
End Function
' ----------------------------------------------------------------------------
Public Function IsValid() As Boolean
If obj = 0 Then
IsValid = False
Else
IsValid = True
End If
End Function
' ----------------------------------------------------------------------------
Public Function Clone()
Dim other_c_obj As Long
Dim other_ct As GDALColorTable
If obj <> 0 Then
other_c_obj = GDALCore.GDALCloneColorTable(obj)
Set other_ct = New GDALColorTable
Call other_ct.CInit(other_c_obj,1)
Set Clone = other_ct
End If
End Function
' ----------------------------------------------------------------------------
Public Sub SetColorEntry(ByVal ColorIndex As Long, _
ColorEntry() As Integer)
If obj <> 0 Then
Dim SafeColorEntry(4) As Integer
SafeColorEntry(0) = ColorEntry(0)
SafeColorEntry(1) = ColorEntry(1)
SafeColorEntry(2) = ColorEntry(2)
SafeColorEntry(3) = ColorEntry(3)
Call GDALCore.GDALSetColorEntry(obj, ColorIndex, SafeColorEntry(0))
End If
End Sub
' ----------------------------------------------------------------------------
Public Function GetColorEntry(ByVal ColorIndex As Long, ColorEntry() As Integer) As Long
If obj <> 0 Then
Dim SafeColorEntry(4) As Integer
GetColorEntry = GDALCore.GDALGetColorEntry(obj, ColorIndex, _
SafeColorEntry(0))
ColorEntry(0) = SafeColorEntry(0)
ColorEntry(1) = SafeColorEntry(1)
ColorEntry(2) = SafeColorEntry(2)
ColorEntry(3) = SafeColorEntry(3)
Else
GetColorEntry = GDALCore.ObjIsNULLError
End If
End Function
' ----------------------------------------------------------------------------
Public Function GetColorEntryAsRGB(ByVal ColorIndex As Long, _
ColorEntry() As Integer) As Long
If obj <> 0 Then
Dim SafeColorEntry(4) As Integer
GetColorEntryAsRGB = GDALCore.GDALGetColorEntryAsRGB( _
obj, ColorIndex, SafeColorEntry(0))
ColorEntry(0) = SafeColorEntry(0)
ColorEntry(1) = SafeColorEntry(1)
ColorEntry(2) = SafeColorEntry(2)
ColorEntry(3) = SafeColorEntry(3)
Else
GetColorEntryAsRGB = GDALCore.ObjIsNULLError
End If
End Function
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