private void listView_DrawSubItem(object sender, DrawListViewSubItemEventArgs e)
{
Brush brush;
Color backColor;
Color foreColor;
if (e.Item.Selected)
{
if (listView.Focused)
{
brush = SystemBrushes.Highlight;
backColor = SystemColors.Highlight;
foreColor = SystemColors.HighlightText;
}
else
{
// We use the same colors here as TreeViewMS does for
// drawing unfocused selected rows.
brush = Brushes.LightGray;
backColor = Color.LightGray;
foreColor = SystemColors.WindowText;
}
}
else
{
brush = SystemBrushes.Window;
backColor = SystemColors.Window;
foreColor = SystemColors.WindowText;
}
if (e.ColumnIndex == 0)
{
// Erase the entire background when drawing the first sub-item
e.Graphics.FillRectangle(brush, e.Item.Bounds);
}
if (e.ColumnIndex == colHdrDisplayText.Index)
{
var findResult = (FindResult) e.Item.Tag;
var textRendererHelper = new TextRendererHelper
{
ForeColor = foreColor,
BackColor = backColor,
Font = e.Item.Font,
HighlightFont = new Font(e.Item.Font, FontStyle.Bold),
};
textRendererHelper.DrawHighlightedText(e.Graphics, e.SubItem.Bounds, findResult.FindMatch);
}
else
{
e.SubItem.ForeColor = foreColor;
e.DrawText();
}
if (e.ColumnIndex == 0)
{
e.DrawFocusRectangle(e.Bounds);
}
}
private void DrawWithHighlighting(String description, String textToHighlight, Graphics graphics,
Rectangle descriptionBounds, Color textColor, Color backColor)
{
var findMatch = new FindMatch(description);
int ichHighlightBegin = description.ToLower().IndexOf(textToHighlight.ToLower(), StringComparison.Ordinal);
// A very short search only matches at the front of a word
if ((textToHighlight.Length < ProteinMatchQuery.MIN_FREE_SEARCH_LENGTH) && (ichHighlightBegin > 0))
{
// Insist on a leading space for match
ichHighlightBegin = description.ToLower().IndexOf(" "+textToHighlight.ToLower(), StringComparison.Ordinal); // Not L10N
if (ichHighlightBegin > 0)
ichHighlightBegin++; // Don't really want to highlight the space
}
if (ichHighlightBegin >= 0)
{
findMatch = findMatch.ChangeRange(ichHighlightBegin, ichHighlightBegin + textToHighlight.Length);
}
else
{
findMatch = findMatch.ChangeRange(0,0); // No highlighting
}
var textRendererHelper = new TextRendererHelper
{
Font = ListView.Font,
HighlightFont = new Font(ListView.Font, FontStyle.Bold),
ForeColor = textColor,
BackColor = backColor,
};
textRendererHelper.DrawHighlightedText(graphics, descriptionBounds, findMatch);
}