-
Notifications
You must be signed in to change notification settings - Fork 1
/
Database.cs
94 lines (76 loc) · 2.94 KB
/
Database.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
using System;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.IO;
using System.Threading;
using System.Web;
using DotNetNuke.Services.GeneratedImage;
using Microsoft.ApplicationBlocks.Data;
namespace Bitboxx.Services.GeneratedImage
{
public class DbImage : ImageTransform
{
/// <summary>
/// Sets the Connectionstring Descriptor from web.config. Defaultvalue is empty
/// </summary>
public string Connection { get; set; }
/// <summary>
/// Sets the Table to select from. Defaultvalue is empty
/// </summary>
public string Table { get; set; }
/// <summary>
/// Sets the ID Field name to select from. Defaultvalue is empty
/// </summary>
public string IdField { get; set; }
/// <summary>
/// Sets the ID Field value to select from. Defaultvalue is empty
/// </summary>
public string IdValue { get; set; }
/// <summary>
/// Sets the Image Field name to select from. Defaultvalue is empty
/// </summary>
public string ImageField { get; set; }
public override string UniqueString
{
get
{
return base.UniqueString + "-" + this.Connection + "-" + this.Table + "-" +
this.IdField + "-" + this.IdValue + "-" + this.ImageField ;
}
}
public DbImage()
{
InterpolationMode = InterpolationMode.HighQualityBicubic;
SmoothingMode = SmoothingMode.Default;
PixelOffsetMode = PixelOffsetMode.Default;
CompositingQuality = CompositingQuality.HighSpeed;
}
public override Image ProcessImage(Image image)
{
Bitmap emptyBmp = new Bitmap(1, 1, PixelFormat.Format1bppIndexed);
emptyBmp.MakeTransparent();
if (String.IsNullOrWhiteSpace(Connection))
Connection = "SiteSqlServer";
ConnectionStringSettings conn = ConfigurationManager.ConnectionStrings[Connection];
if (conn == null || string.IsNullOrEmpty(Table) || string.IsNullOrEmpty(IdField) ||
string.IsNullOrEmpty(IdValue) || string.IsNullOrEmpty(ImageField))
{
return emptyBmp;
}
string sqlCmd = "SELECT " + this.ImageField + " FROM " +
this.Table + " WHERE " + this.IdField + " = @Value";
object result = SqlHelper.ExecuteScalar(conn.ConnectionString, CommandType.Text, sqlCmd, new SqlParameter("Value", Convert.ToInt32(this.IdValue)));
if (result != null)
{
MemoryStream ms = new MemoryStream((byte[])result);
return Image.FromStream(ms);
}
return emptyBmp;
}
}
}