// ========================================================================
// Methods
#region === Methods
/// <summary>
/// Raises the <see cref="ComboBox.DrawItem" /> event.
/// </summary>
/// <param name="e">A <see cref="DrawItemEventArgs" /> that contains the event data. </param>
protected override void OnDrawItem(DrawItemEventArgs e)
{
e.DrawBackground();
e.DrawFocusRectangle();
var item = e.Index >= 0 ? Items[e.Index] : null;
ControlDrawHelper.DrawImageComboBoxItem(e.Graphics, item, ImageList, ImageSize, e.Bounds, Font, ForeColor);
base.OnDrawItem(e);
}
/// <summary>
/// Paints the current <see cref="DataGridViewImageComboBoxColumnCell" />.
/// </summary>
/// <param name="graphics">The <see cref="T:System.Drawing.Graphics" /> used to paint the cell.</param>
/// <param name="clipBounds">
/// A <see cref="T:System.Drawing.Rectangle" /> that represents the area of the
/// <see cref="T:System.Windows.Forms.DataGridView" /> that needs to be repainted.
/// </param>
/// <param name="cellBounds">
/// A <see cref="T:System.Drawing.Rectangle" /> that contains the bounds of the cell that is being
/// painted.
/// </param>
/// <param name="rowIndex">The row index of the cell that is being painted.</param>
/// <param name="elementState">
/// A bitwise combination of <see cref="T:System.Windows.Forms.DataGridViewElementStates" />
/// values that specifies the state of the cell.
/// </param>
/// <param name="value">The data of the cell that is being painted.</param>
/// <param name="formattedValue">The formatted data of the cell that is being painted.</param>
/// <param name="errorText">An error message that is associated with the cell.</param>
/// <param name="cellStyle">
/// A <see cref="T:System.Windows.Forms.DataGridViewCellStyle" /> that contains formatting and
/// style information about the cell.
/// </param>
/// <param name="advancedBorderStyle">
/// A <see cref="T:System.Windows.Forms.DataGridViewAdvancedBorderStyle" /> that contains
/// border styles for the cell that is being painted.
/// </param>
/// <param name="paintParts">
/// A bitwise combination of the <see cref="T:System.Windows.Forms.DataGridViewPaintParts" />
/// values that specifies which parts of the cell need to be painted.
/// </param>
protected override void Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates elementState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
{
//Call the base to draw the combo box itself.
base.Paint(graphics, clipBounds, cellBounds, rowIndex, elementState, value, null, errorText, cellStyle, advancedBorderStyle, paintParts);
//Now we will draw the current content of the box.
DataGridViewImageComboBoxColumn column = ( DataGridViewImageComboBoxColumn )OwningColumn;
if (((paintParts & DataGridViewPaintParts.Background) != 0) || ((paintParts & DataGridViewPaintParts.All) != 0))
{
Rectangle rect = new Rectangle(cellBounds.X + 4, cellBounds.Y, cellBounds.Width - 4, cellBounds.Height - 1);
ControlDrawHelper.DrawImageComboBoxItem(graphics, value, column.ImageList, column.ImageSize, rect, cellStyle.Font, cellStyle.ForeColor);
}
}