protected virtual void PaintNodeContent(TreeView control, TreeNode node, int visibleIndex, ControlPaintArgs args)
{
UserNode treeNodeNode = new UserNode(string.Empty, new[] { "Node", "TreeViewNode" });
treeNodeNode.SetParent(new ControlNode(control));
if (node.IsSelected)
{
treeNodeNode.AddState(NodeStates.Checked);
}
if (visibleIndex % 2 == 0)
{
treeNodeNode.AddClass("Even");
}
else
{
treeNodeNode.AddClass("Odd");
}
IRuleset treeNodeRuleset = args.StyleSheet.GetRuleset(treeNodeNode);
Rectangle nodeRect = node.Bounds;
Rectangle backgroundRect = new Rectangle(nodeRect.X + 2, nodeRect.Y + 1, nodeRect.Width, nodeRect.Height - 1);
Rectangle textRect = new Rectangle(nodeRect.X + 1, nodeRect.Y + 3, nodeRect.Width - 1, nodeRect.Height - 3);
if (control.FullRowSelect)
{
backgroundRect = new Rectangle(0, backgroundRect.Y, control.Width, backgroundRect.Height);
}
args.StyleRenderer.PaintBackground(args.Graphics, backgroundRect, treeNodeRuleset);
args.StyleRenderer.PaintText(args.Graphics, textRect, treeNodeRuleset, node.Text, control.Font, TextFormatFlags.Default | TextFormatFlags.VerticalCenter);
args.StyleRenderer.PaintBorder(args.Graphics, backgroundRect, treeNodeRuleset);
}
// Private members
private void PaintDropDownArrow(ComboBox control, ControlPaintArgs e)
{
INode controlNode = new ControlNode(control);
UserNode dropDownArrowNode = new UserNode(string.Empty, new[] { "DropDownArrow" });
dropDownArrowNode.SetParent(controlNode);
dropDownArrowNode.SetStates(controlNode.States);
IRuleset ruleset = e.StyleSheet.GetRuleset(dropDownArrowNode);
// Create the arrow rectangle to match the bounds of the default control.
Rectangle clientRect = control.ClientRectangle;
Rectangle arrowRect = new Rectangle(clientRect.Right - 12, clientRect.Y + 9, 7, 6);
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
using (Pen pen = new Pen(ruleset.Color?.Value ?? SystemColors.ControlText)) {
pen.Width = 2.0f;
pen.Alignment = PenAlignment.Center;
pen.StartCap = LineCap.Flat;
pen.EndCap = LineCap.Flat;
PointF bottomMidpoint = new PointF(arrowRect.Left + arrowRect.Width / 2.0f, arrowRect.Bottom - 1);
e.Graphics.DrawLine(pen, new PointF(arrowRect.Left, arrowRect.Top), bottomMidpoint);
e.Graphics.DrawLine(pen, new PointF(arrowRect.Right, arrowRect.Top), bottomMidpoint);
}
}
private void PaintSubItem(Graphics graphics, ListViewItem item, ListViewItem.ListViewSubItem subItem)
{
ListView listView = item.ListView;
ColumnHeader columnHeader = listView.Columns[item.SubItems.IndexOf(subItem)];
Rectangle bounds = subItem.Bounds;
UserNode node = new UserNode(bounds, listView.PointToClient(Cursor.Position));
node.SetClass("ListViewItem");
node.AddClass("Item");
node.SetParent(new ControlNode(listView));
if (item.Selected)
{
node.AddState(NodeStates.Checked);
}
int textPadding = 4;
IRuleset ruleset = styleSheet.GetRuleset(node);
Rectangle itemRect = new Rectangle(bounds.X, bounds.Y, columnHeader.Width, bounds.Height);
Rectangle textRect = new Rectangle(itemRect.X + textPadding, itemRect.Y, itemRect.Width - textPadding * 2, itemRect.Height);
TextFormatFlags textFormatFlags = TextFormatFlags.Left | TextFormatFlags.VerticalCenter | TextFormatFlags.EndEllipsis | TextFormatFlags.NoPrefix;
styleRenderer.PaintText(graphics, textRect, ruleset, subItem.Text, subItem.Font, textFormatFlags);
styleRenderer.PaintBorder(graphics, itemRect, ruleset);
}
private void PaintItem(Graphics graphics, ListViewItem item)
{
Rectangle bounds = item.Bounds;
UserNode node = new UserNode(bounds, item.ListView.PointToClient(Cursor.Position));
node.AddClass("ListViewItem");
node.AddClass("Item");
node.SetParent(new ControlNode(item.ListView));
if (item.Index % 2 == 0)
{
node.AddClass("Even");
}
else
{
node.AddClass("Odd");
}
if (item.Selected)
{
node.AddState(NodeStates.Checked);
}
IRuleset ruleset = styleSheet.GetRuleset(node);
Rectangle rect = new Rectangle(bounds.X, bounds.Y, bounds.Width, bounds.Height);
styleRenderer.PaintBackground(graphics, rect, ruleset);
styleRenderer.PaintBorder(graphics, rect, ruleset);
}
private INode GetProgressNode(ProgressBar control)
{
UserNode node = new UserNode(string.Empty, new[] { "Progress" });
node.SetParent(new ControlNode(control));
return(node);
}
private IRuleset GetToolStripSeparatorRuleset(ToolStrip parent)
{
UserNode node = getToolStripSeparatorNode();
node.SetParent(new ControlNode(parent));
return(styleSheet.GetRuleset(node));
}
private IRuleset GetToolStripDropDownRuleset(ToolStrip parent)
{
UserNode node = GetToolStripDropDownNode();
node.SetParent(new ControlNode(parent));
return(styleSheet.GetRuleset(node));
}
private IRuleset GetToolStripItemRuleset(ToolStrip parent, ToolStripItem item)
{
UserNode node = GetToolStripItemNode(item);
node.SetParent(new ControlNode(parent));
return(styleSheet.GetRuleset(node));
}
private void PaintLines(TreeView control, TreeNodeCollection nodes, ControlPaintArgs args)
{
const int buttonWidth = 9;
if (control.ShowLines && control.Nodes.Count > 0)
{
if (control.ShowRootLines || nodes[0].Level != 0)
{
UserNode lineNode = new UserNode(string.Empty, new[] { "Lines" });
lineNode.SetParent(new ControlNode(control));
IRuleset lineRuleset = args.StyleSheet.GetRuleset(lineNode);
Color lineColor = lineRuleset.Color?.Value ?? Color.Black;
using (Pen linePen = new Pen(lineColor)) {
linePen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot;
// Draw a line from the first node down to the last node.
TreeNode firstNode = nodes[0];
TreeNode lastNode = nodes[nodes.Count - 1];
int x1 = firstNode.Bounds.X - 8;
int x2 = x1;
int y1 = firstNode.Bounds.Y + (firstNode.Nodes.Count > 0 ? buttonWidth - 1 : 2);
int y2 = lastNode.Bounds.Y + (firstNode.Nodes.Count > 0 ? buttonWidth - 1 : 13);
args.Graphics.DrawLine(linePen, new Point(x1, y1), new Point(x2, y2));
// Draw horizontal lines connecting the vertical line to each of the nodes.
foreach (TreeNode childNode in nodes)
{
x1 = firstNode.Bounds.X - buttonWidth + 1;
x2 = childNode.Bounds.X + 2;
y1 = childNode.Bounds.Y + 12;
y2 = y1;
args.Graphics.DrawLine(linePen, new Point(x1, y1), new Point(x2, y2));
}
}
}
// Draw lines for the child nodes.
foreach (TreeNode node in nodes)
{
if (node.IsExpanded)
{
PaintLines(control, node.Nodes, args);
}
}
}
}
// Private members
private void PaintTabs(TabControl control, ControlPaintArgs e)
{
if (control.TabPages.Count > 0)
{
for (int i = 0; i < control.TabPages.Count; ++i)
{
TabPage tabPage = control.TabPages[i];
Rectangle tabRect = control.GetTabRect(i);
UserNode tabNode = new UserNode(tabRect, control.PointToClient(Cursor.Position));
tabNode.SetParent(new ControlNode(control));
tabNode.AddClass("tab");
if (i == 0)
{
tabRect = new Rectangle(tabRect.X + 2, tabRect.Y, tabRect.Width - 2, tabRect.Height);
}
if (control.SelectedIndex == i)
{
// Draw selected tab.
tabNode.AddState(NodeStates.Checked);
IRuleset tabRuleset = e.StyleSheet.GetRuleset(tabNode);
Rectangle drawRect = new Rectangle(tabRect.X - 2, tabRect.Y - 2, tabRect.Width + 2, tabRect.Height + 4);
Rectangle textRect = new Rectangle(tabRect.X, tabRect.Y - 2, tabRect.Width, tabRect.Height);
if (i == 0)
{
drawRect = new Rectangle(drawRect.X + 2, drawRect.Y, drawRect.Width - 2, drawRect.Height);
}
e.StyleRenderer.PaintBackground(e.Graphics, drawRect, tabRuleset);
e.StyleRenderer.PaintBorder(e.Graphics, drawRect, tabRuleset);
e.StyleRenderer.PaintText(e.Graphics, textRect, tabRuleset, tabPage.Text, control.Font, textFormatFlags: TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter);
}
else
{
// Draw unselected tab.
IRuleset tabRuleset = e.StyleSheet.GetRuleset(tabNode);
Rectangle drawRect = new Rectangle(tabRect.X, tabRect.Y, tabRect.Width, tabRect.Height + 2);
e.StyleRenderer.PaintBackground(e.Graphics, drawRect, tabRuleset);
e.StyleRenderer.PaintBorder(e.Graphics, drawRect, tabRuleset);
e.StyleRenderer.PaintText(e.Graphics, tabRect, tabRuleset, tabPage.Text, control.Font, textFormatFlags: TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter);
}
}
}
}
protected virtual void PaintNodeButton(TreeView control, TreeNode node, ControlPaintArgs args)
{
const int buttonWidth = 9;
const int detailPadding = 2;
UserNode nodeButtonNode = new UserNode(string.Empty, new[] { "Button" });
nodeButtonNode.SetParent(new ControlNode(control));
if (node.IsSelected)
{
nodeButtonNode.AddState(NodeStates.Checked);
}
IRuleset nodeButtonRuleset = args.StyleSheet.GetRuleset(nodeButtonNode);
Rectangle nodeRect = node.Bounds;
Rectangle buttonRect = new Rectangle(nodeRect.X - buttonWidth - 3, nodeRect.Y + nodeRect.Height - buttonWidth - 1, buttonWidth, buttonWidth);
args.StyleRenderer.PaintBackground(args.Graphics, buttonRect, nodeButtonRuleset);
args.StyleRenderer.PaintBorder(args.Graphics, buttonRect, nodeButtonRuleset);
if (PaintNodeButtonContent)
{
Color detailColor = nodeButtonRuleset.Color?.Value ?? Color.Black;
buttonRect.Inflate(-detailPadding, -detailPadding);
int x = buttonRect.X;
int y = buttonRect.Y;
int x2 = x + buttonRect.Width - 1;
int y2 = y + buttonRect.Height - 1;
int midX = x + (buttonRect.Width / 2);
int midY = y + (buttonRect.Height / 2);
using (Pen detailPen = new Pen(detailColor)) {
args.Graphics.DrawLine(detailPen, new Point(x, midY), new Point(x2, midY));
if (!node.IsExpanded)
{
args.Graphics.DrawLine(detailPen, new Point(midX, y), new Point(midX, y2));
}
}
}
}
private void PaintCheck(CheckBox control, ControlPaintArgs e)
{
INode controlNode = new ControlNode(control);
UserNode checkNode = new UserNode(string.Empty, new[] { "Check" });
checkNode.SetParent(controlNode);
checkNode.SetStates(controlNode.States);
IRuleset parentRuleset = e.StyleSheet.GetRuleset(control);
IRuleset ruleset = e.StyleSheet.GetRuleset(checkNode, inherit: false);
if (!ruleset.Any())
{
ruleset = CreateDefaultCheckRuleset();
}
ruleset.InheritProperties(parentRuleset);
Rectangle clientRect = e.Control.ClientRectangle;
Rectangle checkRect = new Rectangle(clientRect.X, clientRect.Y + (int)(clientRect.Height / 2.0f - CheckWidth / 2.0f) - 1, CheckWidth, CheckWidth);
e.StyleRenderer.PaintBackground(e.Graphics, checkRect, ruleset);
e.StyleRenderer.PaintBorder(e.Graphics, checkRect, ruleset);
// Draw the checkmark.
if (control.Checked)
{
using (Pen pen = new Pen(ruleset.Color?.Value ?? SystemColors.ControlText)) {
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
pen.Alignment = PenAlignment.Center;
pen.Width = 2.0f;
pen.StartCap = LineCap.Square;
pen.EndCap = LineCap.Square;
e.Graphics.DrawLine(pen, checkRect.X + 3, checkRect.Y + checkRect.Height / 2.0f, checkRect.X + checkRect.Width / 2.0f - 1, checkRect.Y + checkRect.Height - 5);
e.Graphics.DrawLine(pen, checkRect.X + checkRect.Width / 2.0f - 1, checkRect.Y + checkRect.Height - 5, checkRect.X + checkRect.Width - 4, checkRect.Y + 3);
}
}
}
private INode CreateItemNode(ListBox control, int itemindex)
{
object item = control.Items[itemindex];
Rectangle itemRect = control.GetItemRectangle(itemindex);
NodeStates states = NodeStates.None;
if (control.SelectedItems.Contains(item))
{
states |= NodeStates.Checked;
}
if (ControlUtilities.MouseIntersectsWith(control, itemRect))
{
if (Control.MouseButtons.HasFlag(MouseButtons.Left))
{
states |= NodeStates.Active;
}
else
{
states |= NodeStates.Hover;
}
}
UserNode node = new UserNode(string.Empty, new[] { "ListBoxItem", "Item" });
node.SetParent(new ControlNode(control));
node.SetStates(states);
if (itemindex % 2 == 0)
{
node.AddClass("even");
}
else
{
node.AddClass("odd");
}
return(node);
}
private UserNode GetColumnHeaderNode(ColumnHeader columnHeader)
{
Rectangle bounds = GetColumnHeaderBounds(columnHeader);
UserNode node = new UserNode(bounds, columnHeader.ListView.PointToClient(Cursor.Position));
node.SetParent(new ControlNode(columnHeader.ListView));
node.AddClass("ColumnHeader");
node.AddClass("Header");
if (columnHeader.Index % 2 == 0)
{
node.AddClass("Even");
}
else
{
node.AddClass("Odd");
}
return(node);
}
private void PaintCheck(RadioButton control, ControlPaintArgs e)
{
INode controlNode = new ControlNode(control);
UserNode checkNode = new UserNode(string.Empty, new[] { "Check" });
checkNode.SetParent(controlNode);
checkNode.SetStates(controlNode.States);
IRuleset parentRuleset = e.StyleSheet.GetRuleset(control);
IRuleset ruleset = e.StyleSheet.GetRuleset(checkNode, inherit: false);
if (!ruleset.Any())
{
ruleset = CreateDefaultCheckRuleset();
}
ruleset.InheritProperties(parentRuleset);
Rectangle clientRect = control.ClientRectangle;
Rectangle checkRect = new Rectangle(clientRect.X, clientRect.Y + (int)(clientRect.Height / 2.0f - CheckWidth / 2.0f), CheckWidth, CheckWidth);
e.StyleRenderer.PaintBackground(e.Graphics, checkRect, ruleset);
e.StyleRenderer.PaintBorder(e.Graphics, checkRect, ruleset);
// Draw the checkmark.
if (control.Checked)
{
using (Brush brush = new SolidBrush(ruleset.Color?.Value ?? SystemColors.ControlText)) {
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
e.Graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
checkRect.Inflate(-3, -3);
e.Graphics.FillEllipse(brush, checkRect);
}
}
}
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;
}
}
