public ItemSelectorPopupForm(ItemSelector owner)
: base(owner)
{
base.fCloseButtonStyle = BlobCloseButtonStyle.None;
ScrollBar = new DevExpress.XtraEditors.VScrollBar();
ScrollBar.ScrollBarAutoSize = true;
ScrollBar.Scroll += ScrollBar_Scroll;
ScrollBar.LookAndFeel.Assign(Properties.LookAndFeel);
Controls.Add(ScrollBar);
dragScrollTimer = new Timer();
dragScrollTimer.Tick += DragScrollTimer_Tick;
}
static void DrawCell(PopupFormGraphicsInfoArgs args, int rowIndex, ResultColumn column, int x)
{
var info = (ItemSelectorPopupFormViewInfo)args.ViewInfo;
//Subtract the padding from the left edge and the width. (To preserve the right edge)
x += info.CellPaddingLeft;
var location = new Point(x, info.GetRowCoordinate(rowIndex));
var cellWidth = Math.Min(column.Width - info.CellPaddingLeft, info.RowsArea.Right - info.HoverElement.ContentMargins.Right - x);
var cellBounds = new Rectangle(location, new Size(cellWidth, info.RowHeight));
var text = column.GetValue(info.Rows[rowIndex]);
//If this cell matched the filter, find the matching prefix.
//I take the prefix from the cell value instead of the actual
//word to allow for variations in case and hyphens.
string matchedPart = null;
if (column.ShouldFilter && info.FilterWords.Any())
{
var match = info.FilterWords.FirstOrDefault(fw => ItemSelector.ValueMatches(filterWord: fw, columnValue: text));
if (match != null)
{
matchedPart = text.Substring(0, match.Length); //The match might be the entire value
}
}
Brush colorOverride = null;
if (rowIndex == info.HoveredIndex &&
info.HoverElement.Color.ForeColor != info.AppearanceResults.GetForeColor())
{
colorOverride = args.Cache.GetSolidBrush(info.HoverElement.Color.ForeColor);
}
if (String.IsNullOrEmpty(matchedPart))
{
info.AppearanceResults.DrawStringDefaultColor(args.Cache, text, cellBounds, colorOverride);
}
else
{
info.AppearanceMatch.DrawStringDefaultColor(args.Cache, matchedPart, cellBounds, colorOverride);
var matchSize = Size.Ceiling(info.AppearanceMatch.CalcTextSize(args.Cache, matchedPart, cellWidth));
matchSize.Width++; //DevExpress measures very aggressively
cellBounds.X += matchSize.Width;
cellBounds.Width -= matchSize.Width;
info.AppearanceResults.DrawStringDefaultColor(args.Cache, text.Substring(matchedPart.Length), cellBounds, colorOverride);
}
}
