private IRuleset SetNonDefaultCellColors(IRuleset ruleset, DataGridView dataGridView, DataGridViewCellPaintingEventArgs e)
{
IRuleset result = new Ruleset(ruleset);
DataGridViewCellStyle cellStyle = DataGridViewUtilities.GetDefaultCellStyle(dataGridView, e.RowIndex, e.ColumnIndex);
bool isSelected = e.State.HasFlag(DataGridViewElementStates.Selected);
if (!isSelected && e.CellStyle.ForeColor != cellStyle.ForeColor)
{
result.AddProperty(Property.Create(PropertyType.Color, e.CellStyle.ForeColor));
}
else if (isSelected && e.CellStyle.SelectionForeColor != cellStyle.SelectionForeColor)
{
result.AddProperty(Property.Create(PropertyType.Color, e.CellStyle.SelectionForeColor));
}
if (!isSelected && e.CellStyle.BackColor != cellStyle.BackColor)
{
result.AddProperty(Property.Create(PropertyType.BackgroundColor, e.CellStyle.BackColor));
}
else if (isSelected && e.CellStyle.SelectionBackColor != cellStyle.SelectionBackColor)
{
result.AddProperty(Property.Create(PropertyType.BackgroundColor, e.CellStyle.SelectionBackColor));
}
return(result);
}
public void Paint(object sender, PaintEventArgs e)
{
if (sender is DataGridView dataGridView)
{
Region clippingRegion = new Region(dataGridView.ClientRectangle);
clippingRegion.Exclude(DataGridViewUtilities.GetVisibleRowsBounds(dataGridView, true));
e.Graphics.SetClip(clippingRegion, CombineMode.Replace);
styleRenderer.PaintBackground(e.Graphics, dataGridView.ClientRectangle, styleSheet.GetRuleset(dataGridView));
}
}
public void CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
if (sender is DataGridView dataGridView)
{
bool isColumnHeader = DataGridViewUtilities.IsColumnHeaderIndex(e.RowIndex);
bool isRowHeader = DataGridViewUtilities.IsRowHeaderIndex(e.ColumnIndex);
bool isHeader = isColumnHeader || isRowHeader;
bool isSelected = e.State.HasFlag(DataGridViewElementStates.Selected);
UserNode cellNode = new UserNode(e.CellBounds, dataGridView.PointToClient(Cursor.Position));
cellNode.AddClass("Cell");
cellNode.SetParent(new ControlNode(sender as DataGridView));
if (isColumnHeader)
{
cellNode.AddClass("ColumnHeader");
}
else if (isRowHeader)
{
cellNode.AddClass("RowHeader");
}
if (isHeader)
{
cellNode.AddClass("Header");
}
if (e.RowIndex % 2 == 0)
{
cellNode.AddClass("Even");
}
else
{
cellNode.AddClass("Odd");
}
if (isSelected)
{
cellNode.AddState(NodeStates.Checked);
}
IRuleset ruleset = styleSheet.GetRuleset(cellNode);
if (RespectNonDefaultCellColors)
{
ruleset = SetNonDefaultCellColors(ruleset, dataGridView, e);
}
if (ruleset.Color.HasValue())
{
if (isSelected)
{
e.CellStyle.SelectionForeColor = ruleset.Color.Value;
}
else
{
e.CellStyle.ForeColor = ruleset.Color.Value;
}
}
if (ruleset.BackgroundColor.HasValue())
{
if (isSelected)
{
e.CellStyle.SelectionBackColor = ruleset.BackgroundColor.Value;
}
else
{
e.CellStyle.BackColor = ruleset.BackgroundColor.Value;
}
}
if (ruleset.Opacity.HasValue() && ruleset.Opacity.Value < 1.0f)
{
// Draw the part of the DataGridView background behind the cell.
styleRenderer.PaintParentBackground(e.Graphics, e.CellBounds, dataGridView.ClientRectangle, styleSheet.GetRuleset(dataGridView));
}
styleRenderer.PaintBackground(e.Graphics, e.CellBounds, ruleset);
e.PaintContent(e.ClipBounds);
styleRenderer.PaintBorder(e.Graphics, e.CellBounds, ruleset);
e.Handled = true;
}
}
