ImageComboBox

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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125

using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Windows.Forms;


/// <summary>
/// Da es im Framework keine ImageComboBox gibt hatte ich einfach selber
/// eine geschrieben bzw. die vorhandene ComboBox erweitert.
/// Achtung: Man kann nur Items per Code hinzufügen also nicht im Designer,
/// da man im Designer kein ImageKey festlegen kann.
/// </summary>
/// <remarks>Tim Hartwig</remarks>
public class ImageComboBox : ComboBox
{

    private ImageList mImageList = null;

    public ImageComboBox()
    {
        this.DrawMode = DrawMode.OwnerDrawFixed;
    }

    public ImageList ImageList
    {
        get { return mImageList; }
        set { mImageList = value; }
    }

    protected override void OnDrawItem(System.Windows.Forms.DrawItemEventArgs e)
    {
        base.OnDrawItem(e);

        e.DrawBackground();
        e.DrawFocusRectangle();

        if (e.Index >= 0)
        {

            if (this.Items[e.Index] is ImageComboItem)
            {
                if (mImageList != null)
                {
                    ImageComboItem CurrItem = (ImageComboItem)this.Items[e.Index];

                    if (CurrItem.ImageIndex != -1)
                    {
                        this.ImageList.Draw(e.Graphics, e.Bounds.Left, e.Bounds.Top, CurrItem.ImageIndex);
                        e.Graphics.DrawString(CurrItem.Text, CurrItem.Font, 
                            new SolidBrush(CurrItem.ForeColor), 
                            e.Bounds.Left + mImageList.ImageSize.Width, e.Bounds.Top);
                    }
                    else
                    {
                        e.Graphics.DrawString(CurrItem.Text, CurrItem.Font, 
                            new SolidBrush(CurrItem.ForeColor), 
                            e.Bounds.Left + mImageList.ImageSize.Width, e.Bounds.Top);
                    }
                }
            }
            else
            {
                e.Graphics.DrawString(this.Items[e.Index].ToString(), e.Font, new SolidBrush(e.ForeColor), e.Bounds.Left, e.Bounds.Top);
            }
        }
    }
}


public class ImageComboItem
{
	private Color mForeColor = Color.Black;
	private int mImageIndex = -1;
	private object mTag = null;
	private string mText = "";
	private Font mFont;

	public ImageComboItem(string Text, Font Font, Color ForeColor)
	{
		mText = Text;
		mFont = Font;
		mForeColor = ForeColor;
	}

	public ImageComboItem(string Text, Font Font, Color ForeColor, int ImageIndex)
	{
		mText = Text;
		mFont = Font;
		mForeColor = ForeColor;
		mImageIndex = ImageIndex;
	}

	public Color ForeColor {
		get { return mForeColor; }
		set { mForeColor = value; }
	}

	public int ImageIndex {
		get { return mImageIndex; }
		set { mImageIndex = value; }
	}

	public object Tag {
		get { return mTag; }
		set { mTag = value; }
	}

	public string Text {
		get { return mText; }
		set { mText = value; }
	}

	public Font Font {
		get { return mFont; }
		set { mFont = value; }
	}

	public override string ToString()
	{
		return mText;
	}
}