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using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using QuickRoute.BusinessEntities;
using System.Drawing;
namespace QuickRoute.Controls
{
public class GradientComboBox : ComboBox
{
public GradientComboBox()
{
DrawMode = DrawMode.OwnerDrawFixed;
}
protected override void OnDrawItem(DrawItemEventArgs ea)
{
if (ea.Index != -1)
{
GradientListItem item = (GradientListItem)Items[ea.Index];
Brush b = new SolidBrush(BackColor);
ea.Graphics.FillRectangle(b, ea.Bounds);
b.Dispose();
Bitmap backBufferBitmap = new Bitmap(ea.Bounds.Width, ea.Bounds.Height);
Graphics backBufferGraphics = Graphics.FromImage(backBufferBitmap);
item.Gradient.Draw(backBufferGraphics, new Rectangle(0,0,backBufferBitmap.Width,backBufferBitmap.Height), 0, 1, Gradient.Direction.Horizontal);
ea.Graphics.DrawImage(backBufferBitmap, ea.Bounds.Location);
backBufferBitmap.Dispose();
backBufferGraphics.Dispose();
ea.DrawFocusRectangle();
base.OnDrawItem(ea);
}
}
}
public class GradientListItem
{
private Gradient gradient;
private string fileName;
public GradientListItem(Gradient gradient, string fileName)
{
this.gradient = gradient;
this.fileName = fileName;
}
public Gradient Gradient
{
get { return gradient; }
set { gradient = value; }
}
public string FileName
{
get { return fileName; }
set { fileName = value; }
}
}
}
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