private void PaintNodeSelection(Node node, NodeDisplayContext context)
{
if (!node.IsSelectionVisible) return;
context.SelectionDisplayInfo.Node = node;
Rectangle r;
if (this.Tree.SelectionBoxStyle == eSelectionStyle.FullRowSelect)
{
if (context.CellSelection)
{
Cell cell = context.SelectionDisplayInfo.Node.SelectedCell != null ? context.SelectionDisplayInfo.Node.SelectedCell : context.SelectionDisplayInfo.Node.Cells[0];
r = NodeDisplay.GetCellRectangle(eCellRectanglePart.CellBounds,
cell, context.Offset);
}
else
{
r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds, context.SelectionDisplayInfo.Node, context.Offset);
r.X = context.ClientRectangle.X;
r.Width = context.ClientRectangle.Width;
}
if(context.GridRowLines)
r.Inflate(0, (int)Math.Floor((float)Tree.NodeSpacing / 2));
else
r.Inflate(0, (int)Math.Ceiling((float)Tree.NodeSpacing / 2));
}
else if (this.Tree.SelectionBoxStyle == eSelectionStyle.HighlightCells)
{
if (context.CellSelection)
{
Cell cell = context.SelectionDisplayInfo.Node.SelectedCell != null ? context.SelectionDisplayInfo.Node.SelectedCell : context.SelectionDisplayInfo.Node.Cells[0];
r = NodeDisplay.GetCellRectangle(eCellRectanglePart.CellBounds,
cell, context.Offset);
}
else
{
r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.CellsBounds, context.SelectionDisplayInfo.Node, context.Offset);
}
r.Inflate(2, 2);
if (r.Right > context.ClientRectangle.Right)
r.Width -= (r.Right - context.ClientRectangle.Right);
}
else
{
if (context.CellSelection)
{
Cell cell = context.SelectionDisplayInfo.Node.SelectedCell != null ? context.SelectionDisplayInfo.Node.SelectedCell : context.SelectionDisplayInfo.Node.Cells[0];
r = NodeDisplay.GetCellRectangle(eCellRectanglePart.CellBounds,
cell, context.Offset);
}
else
{
r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds, context.SelectionDisplayInfo.Node, context.Offset);
}
}
context.SelectionDisplayInfo.Bounds = r;
context.NodeRenderer.DrawSelection(context.SelectionDisplayInfo);
}
private void PaintHotTracking(NodeDisplayContext context)
{
Node node = this.Tree.MouseOverNode;
if (node != null && !node.IsSelected && node.Selectable)
{
Rectangle r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.CellsBounds, node, context.Offset);
r.Inflate(2, 2);
context.SelectionDisplayInfo.Node = node;
context.SelectionDisplayInfo.Bounds = r;
context.NodeRenderer.DrawHotTracking(context.SelectionDisplayInfo);
}
}
private void PaintNodes(NodeCollection nodes,NodeDisplayContext context)
{
foreach(Node node in nodes)
{
PaintNode(node, context);
}
}
private void PaintSelection(NodeDisplayContext context)
{
if (!this.Tree.MultiSelect && this.Tree.SelectedNode != null && this.Tree.SelectedNode.Visible && this.Tree.SelectionBox && !(this.Tree.HideSelection && !this.Tree.Focused))
{
PaintNodeSelection(this.Tree.SelectedNode, context);
}
else if (this.Tree.MultiSelect && this.Tree.SelectedNodes.Count>0 && this.Tree.SelectionBox && !(this.Tree.HideSelection && !this.Tree.Focused))
{
foreach (Node node in Tree.SelectedNodes)
{
if(node.IsVisible)
PaintNodeSelection(node, context);
}
}
}
private void PaintSingleNode(Node node, NodeDisplayContext context)
{
_PaintedNodes.Add(node);
Rectangle r=NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds,node,context.Offset);
TreeRenderer renderer=context.NodeRenderer;
if(node.NodeRenderer!=null && node.RenderMode==eNodeRenderMode.Custom)
renderer = node.NodeRenderer;
bool isSelected = node.IsSelectionVisible && node.IsSelected;
// Paint node background
ElementStyle style = GetEffectiveNodeBackgroundStyle(node, context);
Region backRegion=null;
if(style!=null)
{
context.NodeRendererEventArgs.Graphics=context.Graphics;
context.NodeRendererEventArgs.Node = node;
context.NodeRendererEventArgs.NodeBounds = r;
context.NodeRendererEventArgs.Style = style;
if (!node.FullRowBackground) // Node full row backgrounds are drawn first...
renderer.DrawNodeBackground(context.NodeRendererEventArgs);
ElementStyleDisplayInfo di = new ElementStyleDisplayInfo(style, context.Graphics, context.NodeRendererEventArgs.NodeBounds);
di.Bounds.Inflate(1, 1);
backRegion=ElementStyleDisplay.GetStyleRegion(di);
di.Bounds = r;
}
if (NodeDisplay.DrawExpandPart(node) && context.ExpandDisplayInfo != null)
{
r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.ExpandBounds, node, context.Offset);
context.ExpandDisplayInfo.Node = node;
context.ExpandDisplayInfo.ExpandPartBounds = r;
context.ExpandDisplayInfo.IsMouseOver = node.MouseOverNodePart == eMouseOverNodePart.Expand;
renderer.DrawNodeExpandPart(context.ExpandDisplayInfo);
}
if (NodeDisplay.HasColumnsVisible(node))
{
PaintColumnHeaders(node.NodesColumns, context.Graphics, false);
}
Region oldRegion=null;
if(backRegion!=null)
{
oldRegion=context.Graphics.Clip;
context.Graphics.SetClip(backRegion,CombineMode.Intersect);
}
ElementStyle cellStyle = null;
if (context.CellStyleDefault == null)
{
cellStyle = new ElementStyle();
cellStyle.TextColor = style.TextColor;
cellStyle.TextShadowColor = style.TextShadowColor;
cellStyle.TextShadowOffset = style.TextShadowOffset;
cellStyle.TextAlignment = style.TextAlignment;
cellStyle.TextLineAlignment = style.TextLineAlignment;
cellStyle.TextTrimming = style.TextTrimming;
cellStyle.WordWrap = style.WordWrap;
cellStyle.Font = style.Font;
cellStyle.UseMnemonic = style.UseMnemonic;
}
foreach(Cell cell in node.Cells)
{
if (!cell.IsVisible) continue;
if (cell.StyleNormal != null)
{
if (context.CellStyleDefault != null)
style = context.CellStyleDefault.Copy();
else
style = cellStyle.Copy();
style.ApplyStyle(cell.StyleNormal);
}
else if (context.CellStyleDefault != null)
style = context.CellStyleDefault.Copy();
else
{
if (!cell.Enabled || cell.IsMouseDown && (cell.StyleMouseDown != null || context.CellStyleMouseDown != null) ||
cell.IsSelected && (cell.StyleSelected != null || context.CellStyleSelected != null) ||
cell.IsMouseOver && (cell.StyleMouseOver != null || context.CellStyleMouseOver != null))
style = cellStyle.Copy();
else
style = cellStyle;
}
if(!cell.Enabled && cell.StyleDisabled!=null)
style.ApplyStyle(cell.StyleDisabled);
else if(!cell.Enabled && context.CellStyleDisabled!=null)
style.ApplyStyle(context.CellStyleDisabled);
else if(cell.IsMouseDown && cell.StyleMouseDown!=null)
style.ApplyStyle(cell.StyleMouseDown);
else if(cell.IsMouseDown && context.CellStyleMouseDown!=null)
style.ApplyStyle(context.CellStyleMouseDown);
else
{
if(cell.IsSelected && cell.StyleSelected!=null)
style.ApplyStyle(cell.StyleSelected);
else if (cell.IsSelected && context.CellStyleSelected != null && context.CellStyleSelected.Custom)
style.ApplyStyle(context.CellStyleSelected);
if(cell.IsMouseOver && cell.StyleMouseOver!=null)
style.ApplyStyle(cell.StyleMouseOver);
else if(cell.IsMouseOver && context.CellStyleMouseOver!=null)
style.ApplyStyle(context.CellStyleMouseOver);
}
r=NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeBounds,node,context.Offset);
if(style!=null)
{
if(style.Font==null)
style.Font=context.DefaultFont;
if (isSelected)
{
style.BackColor = Color.Empty;
style.BackColorSchemePart = eColorSchemePart.None;
style.BackColor2 = Color.Empty;
style.BackColor2SchemePart = eColorSchemePart.None;
}
Rectangle rCell=cell.BoundsRelative;
Rectangle rText=cell.TextContentBounds;
rCell.Offset(r.Location);
rText.Offset(r.Location);
ElementStyleDisplayInfo di=GetElementStyleDisplayInfo(style,context.Graphics,rCell);
ElementStyleDisplay.Paint(di);
NodeCellRendererEventArgs ci=GetCellDisplayInfo(style,context.Graphics,cell,r.Location, context.ColorScheme);
if(ci.Cell.CheckBoxVisible)
renderer.DrawCellCheckBox(ci);
if(!ci.Cell.Images.LargestImageSize.IsEmpty)
renderer.DrawCellImage(ci);
renderer.DrawCellText(ci);
if (context.View == eView.Tile && node.HasChildNodes && !context.TileGroupLineColor.IsEmpty)
renderer.DrawTileGroupLine(new NodeRendererEventArgs(context.Graphics, node, r, style, context.TileGroupLineColor));
}
}
if (backRegion != null)
{
context.Graphics.SetClip(oldRegion, CombineMode.Replace);
backRegion.Dispose();
}
if(oldRegion!=null) oldRegion.Dispose();
}
private void PaintConnector(Node fromNode, Node toNode, NodeDisplayContext context,bool linkConnector, ConnectorPointsCollection connectorPoints)
{
bool isRootNode = fromNode != null ? IsRootNode(fromNode) : IsRootNode(toNode);
if (context.View == eView.Tile || isRootNode && fromNode == null && toNode.Nodes.Count == 0 && toNode.ExpandVisibility != eNodeExpandVisibility.Visible || context.ConnectorDisplayInfo == null)
return;
context.ConnectorDisplayInfo.FromNode=fromNode;
context.ConnectorDisplayInfo.ToNode=toNode;
context.ConnectorDisplayInfo.IsRootNode=isRootNode;
context.ConnectorDisplayInfo.LinkConnector=linkConnector;
if (fromNode != null && fromNode.Style != null)
context.ConnectorDisplayInfo.StyleFromNode = fromNode.Style;
else
context.ConnectorDisplayInfo.StyleFromNode = context.DefaultNodeStyle;
if(toNode.Style!=null)
context.ConnectorDisplayInfo.StyleToNode=toNode.Style;
else
context.ConnectorDisplayInfo.StyleToNode=context.DefaultNodeStyle;
context.ConnectorDisplayInfo.Offset=context.Offset;
/*if(linkConnector)
{
context.ConnectorDisplayInfo.NodeConnector=this.Tree.LinkConnector;
}
else*/ if(toNode.SelectedConnectorMarker)
{
context.ConnectorDisplayInfo.NodeConnector=this.Tree.SelectedPathConnector;
}
else if(toNode.ParentConnector!=null)
{
context.ConnectorDisplayInfo.NodeConnector=toNode.ParentConnector;
}
//else if(isRootNode)
//{
// context.ConnectorDisplayInfo.NodeConnector=this.Tree.RootConnector;
//}
else
{
context.ConnectorDisplayInfo.NodeConnector=this.Tree.NodesConnector;
}
if(linkConnector)
{
context.ConnectorDisplayInfo.ConnectorPoints=connectorPoints;
}
else
{
if(connectorPoints!=null)
context.ConnectorDisplayInfo.ConnectorPoints=connectorPoints;
else
context.ConnectorDisplayInfo.ConnectorPoints=null;
}
context.NodeRenderer.DrawConnector(context.ConnectorDisplayInfo);
}
private void PaintAlternateRowBackground(NodeDisplayContext context, NodeCollection nodeCollection)
{
foreach (Node node in nodeCollection)
{
if (!node.Visible) continue;
Rectangle r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds, node, context.Offset);
if (r.Y > context.ClientRectangle.Bottom) break;
if (r.Y >= context.ClientRectangle.Y)
{
if (context.AlternateRowFlag)
{
Rectangle backRect = new Rectangle(context.ClientRectangle.X, r.Y - 1, context.ClientRectangle.Width, r.Height + 1);
context.Graphics.FillRectangle(context.AlternateRowBrush, backRect);
}
}
context.AlternateRowFlag = !context.AlternateRowFlag;
if (node.Expanded && node.HasChildNodes) PaintAlternateRowBackground(context, node.Nodes);
}
}
private bool PaintNode(Node node, NodeDisplayContext context)
{
if(!node.Visible)
{
node.SelectedConnectorMarker = false;
return false;
}
Rectangle r=NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds,node,context.Offset);
if(r.IsEmpty)
{
node.SelectedConnectorMarker = false;
return false;
}
if (context.GridRowLines && !node.IsDragNode)
{
DisplayHelp.DrawLine(context.Graphics, context.ClientRectangle.X, r.Bottom+1, context.ClientRectangle.Right, r.Bottom+1, context.GridRowLineColor, 1);
}
bool paintChildNodes = (node.Expanded && node.Nodes.Count > 0);
if (!node.IsDragNode && (node.Parent != null || node.ExpandVisibility != eNodeExpandVisibility.Hidden))
this.PaintConnector(null, node, context, false);
if (paintChildNodes)
{
Node lastChildNode = NodeOperations.GetLastVisibleChildNode(node);
if (lastChildNode != null)
this.PaintConnector(node, lastChildNode, context, false);
}
node.SelectedConnectorMarker = false;
if (NodeDisplay.HasColumnsVisible(node))
{
r.Height += node.ColumnHeaderHeight;
r.Width = Math.Max(r.Width, node.NodesColumns.Bounds.Width);
}
if (r.IntersectsWith(context.ClipRectangle) || context.ClipRectangle.IsEmpty)
PaintSingleNode(node, context);
if (paintChildNodes)
{
PaintNodes(node.Nodes, context);
}
return true;
}
private void PaintConnector(Node fromNode, Node toNode, NodeDisplayContext context,bool linkConnector, ConnectorPointsCollection connectorPoints)
{
bool isRootNode=IsRootNode(fromNode);
// if(context.RootConnectorDisplay==null && isRootNode || context.NodesConnectorDisplay==null && !isRootNode || linkConnector && context.LinkConnectorDisplay==null)
// return;
context.ConnectorDisplayInfo.FromNode=fromNode;
context.ConnectorDisplayInfo.ToNode=toNode;
context.ConnectorDisplayInfo.IsRootNode=isRootNode;
context.ConnectorDisplayInfo.LinkConnector=linkConnector;
if(fromNode.Style!=null)
context.ConnectorDisplayInfo.StyleFromNode=fromNode.Style;
else
context.ConnectorDisplayInfo.StyleFromNode=context.DefaultNodeStyle;
if(toNode.Style!=null)
context.ConnectorDisplayInfo.StyleToNode=toNode.Style;
else
context.ConnectorDisplayInfo.StyleToNode=context.DefaultNodeStyle;
context.ConnectorDisplayInfo.Offset=context.Offset;
//NodeConnectorDisplay display=null;
if(linkConnector)
{
context.ConnectorDisplayInfo.NodeConnector=this.Tree.LinkConnector;
}
else if(toNode.SelectedConnectorMarker)
{
//display = context.SelectedPathConnectorDisplay;
context.ConnectorDisplayInfo.NodeConnector=this.Tree.SelectedPathConnector;
}
else if(toNode.ParentConnector!=null)
{
//display=this.GetConnectorDisplay(toNode.ParentConnector);
context.ConnectorDisplayInfo.NodeConnector=toNode.ParentConnector;
}
else if(isRootNode)
{
//display=context.RootConnectorDisplay;
context.ConnectorDisplayInfo.NodeConnector=this.Tree.RootConnector;
}
else
{
//display=context.NodesConnectorDisplay;
context.ConnectorDisplayInfo.NodeConnector=this.Tree.NodesConnector;
}
if(linkConnector)
{
if (connectorPoints != null && connectorPoints.Count > 0)
context.ConnectorDisplayInfo.ConnectorPoints=connectorPoints;
}
else
{
if(connectorPoints!=null)
context.ConnectorDisplayInfo.ConnectorPoints=connectorPoints;
else if(toNode.ParentConnectorPoints.Count>0)
context.ConnectorDisplayInfo.ConnectorPoints=toNode.ParentConnectorPoints;
else
context.ConnectorDisplayInfo.ConnectorPoints=null;
}
context.NodeRenderer.DrawConnector(context.ConnectorDisplayInfo);
//if(display!=null)
// display.DrawConnector(context.ConnectorDisplayInfo);
}
private void PaintAlternateRowBackground(NodeDisplayContext context)
{
if (this.Tree.DisplayRootNode != null)
{
context.AlternateRowFlag = true;
PaintAlternateRowBackground(context, this.Tree.DisplayRootNode.Nodes);
}
else
{
PaintAlternateRowBackground(context, this.Tree.Nodes);
}
}
/// <summary>
/// Paints the treee on canvas.
/// </summary>
public override void Paint(Graphics g, Rectangle clipRectangle)
{
base.Paint(g,clipRectangle);
// Paint header
// Paint Nodes...
NodeDisplayContext context=new NodeDisplayContext();
context.Graphics=g;
context.DefaultFont=this.Tree.Font;
context.ClipRectangle=clipRectangle;
context.Offset=this.Offset;
context.Styles=this.Tree.Styles;
// Setup rendering
context.NodeRenderer = m_SystemRenderer;
if(this.Tree.NodeRenderer!=null && this.Tree.RenderMode==eNodeRenderMode.Custom)
context.NodeRenderer=this.Tree.NodeRenderer;
else if(this.Tree.RenderMode==eNodeRenderMode.Professional)
context.NodeRenderer = m_ProfRenderer;
context.NodeRendererEventArgs=new NodeRendererEventArgs();
if(this.Tree.NodeStyle!=null)
context.DefaultNodeStyle=this.Tree.NodeStyle;
else
context.DefaultNodeStyle=GetDefaultNodeStyle();
if(this.Tree.NodeStyleExpanded!=null)
context.ExpandedNodeStyle=this.Tree.NodeStyleExpanded;
if(this.Tree.NodeStyleSelected!=null)
context.SelectedNodeStyle=this.Tree.NodeStyleSelected;
if(this.Tree.NodeStyleMouseOver!=null)
context.MouseOverNodeStyle=this.Tree.NodeStyleMouseOver;
if(this.Tree.CellStyleDefault!=null)
context.CellStyleDefault=this.Tree.CellStyleDefault;
// else
// context.CellStyleDefault=ElementStyle.GetDefaultCellStyle(context.DefaultNodeStyle);
if(this.Tree.CellStyleDisabled!=null)
context.CellStyleDisabled=this.Tree.CellStyleDisabled;
else
context.CellStyleDisabled=ElementStyle.GetDefaultDisabledCellStyle();
if(this.Tree.CellStyleMouseDown!=null)
context.CellStyleMouseDown=this.Tree.CellStyleMouseDown;
if(this.Tree.CellStyleMouseOver!=null)
context.CellStyleMouseOver=this.Tree.CellStyleMouseOver;
if(this.Tree.CellStyleSelected!=null)
context.CellStyleSelected=this.Tree.CellStyleSelected;
else
context.CellStyleSelected=ElementStyle.GetDefaultSelectedCellStyle();
// Setup connector
//context.RootConnectorDisplay=GetConnectorDisplay(this.Tree.RootConnector);
//context.NodesConnectorDisplay=GetConnectorDisplay(this.Tree.NodesConnector);
//context.LinkConnectorDisplay=GetConnectorDisplay(this.Tree.LinkConnector);
context.ConnectorDisplayInfo=new ConnectorRendererEventArgs();
context.ConnectorDisplayInfo.Graphics=context.Graphics;
if(this.Tree.SelectedPathConnector!=null)
{
// Prepare nodes for path display. Downstream nodes are easily recognized when
// path upstream nodes need special treatment to improve performance
if(this.Tree.SelectedNode!=null)
{
Node n=this.Tree.SelectedNode;
while(n!=null)
{
// This marker will be reset once node is painted...
n.SelectedConnectorMarker = true;
n=n.Parent;
}
}
//context.SelectedPathConnectorDisplay=GetConnectorDisplay(this.Tree.SelectedPathConnector);
}
// Setup Node Expander Painter
context.ExpandDisplayInfo=new NodeExpandPartRendererEventArgs(context.Graphics);
context.ExpandDisplayInfo.BackColor=this.Tree.GetColor(this.Tree.ExpandBackColor, this.Tree.ExpandBackColorSchemePart);
context.ExpandDisplayInfo.BackColor2=this.Tree.GetColor(this.Tree.ExpandBackColor2, this.Tree.ExpandBackColor2SchemePart);
context.ExpandDisplayInfo.BackColorGradientAngle=this.Tree.ExpandBackColorGradientAngle;
context.ExpandDisplayInfo.BorderColor=this.Tree.GetColor(this.Tree.ExpandBorderColor, this.Tree.ExpandBorderColorSchemePart);
context.ExpandDisplayInfo.ExpandLineColor=this.Tree.GetColor(this.Tree.ExpandLineColor, this.Tree.ExpandLineColorSchemePart);
context.ExpandDisplayInfo.Graphics=context.Graphics;
context.ExpandDisplayInfo.ExpandButtonType = this.Tree.ExpandButtonType;
context.ExpandDisplayInfo.ExpandImage=this.Tree.ExpandImage;
context.ExpandDisplayInfo.ExpandImageCollapse=this.Tree.ExpandImageCollapse;
//context.ExpandDisplay=this.GetExpandDisplay(this.Tree.ExpandButtonType);
// Setup Selection Display
//context.SelectionDisplay=new NodeSelectionDisplay();
context.SelectionDisplayInfo=new SelectionRendererEventArgs();
context.SelectionDisplayInfo.Graphics=context.Graphics;
context.SelectionDisplayInfo.FillColor=this.Tree.SelectionBoxFillColor;
context.SelectionDisplayInfo.BorderColor=this.Tree.SelectionBoxBorderColor;
context.SelectionDisplayInfo.Width=this.Tree.SelectionBoxSize;
// Setup Node Command Display
//context.CommandDisplay=new NodeCommandDisplay();
context.CommandDisplayInfo=new NodeCommandPartRendererEventArgs(context.Graphics);
context.CommandDisplayInfo.BackColor=this.Tree.GetColor(this.Tree.CommandBackColor, this.Tree.CommandBackColorSchemePart);
context.CommandDisplayInfo.BackColor2=this.Tree.GetColor(this.Tree.CommandBackColor2, this.Tree.CommandBackColor2SchemePart);
context.CommandDisplayInfo.BackColorGradientAngle=this.Tree.CommandBackColorGradientAngle;
context.CommandDisplayInfo.ForeColor=this.Tree.GetColor(this.Tree.CommandForeColor, this.Tree.CommandForeColorSchemePart);
context.CommandDisplayInfo.MouseOverBackColor=this.Tree.GetColor(this.Tree.CommandMouseOverBackColor, this.Tree.CommandMouseOverBackColorSchemePart);
context.CommandDisplayInfo.MouseOverBackColor2=this.Tree.GetColor(this.Tree.CommandMouseOverBackColor2, this.Tree.CommandMouseOverBackColor2SchemePart);
context.CommandDisplayInfo.MouseOverBackColorGradientAngle=this.Tree.CommandMouseOverBackColorGradientAngle;
context.CommandDisplayInfo.MouseOverForeColor=this.Tree.GetColor(this.Tree.CommandMouseOverForeColor, this.Tree.CommandMouseOverForeColorSchemePart);
if(this.Tree.DisplayRootNode!=null)
this.PaintNode(this.Tree.DisplayRootNode, context);
else
this.PaintNodes(this.Tree.Nodes, context);
Node dragNode=this.Tree.GetDragNode();
if(dragNode!=null && dragNode.Parent==null)
{
Point p=context.Offset;
context.Offset=Point.Empty;
PaintNode(dragNode,context);
context.Offset=p;
}
PaintSelection(context);
}
private void PaintSingleNode(Node node, NodeDisplayContext context)
{
Rectangle r=NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds,node,context.Offset);
NodeRenderer renderer=context.NodeRenderer;
if(node.NodeRenderer!=null && node.RenderMode==eNodeRenderMode.Custom)
renderer = node.NodeRenderer;
// Paint node background
ElementStyle style=context.DefaultNodeStyle.Copy();
if(node.Style!=null)
style=node.Style.Copy();
bool bApllyStyles=true;
if(node.MouseOverNodePart==eMouseOverNodePart.Node && style!=null)
{
ElementStyle mouseOverStyle=context.MouseOverNodeStyle;
if(node.StyleMouseOver!=null)
mouseOverStyle=node.StyleMouseOver;
if (mouseOverStyle != null)
{
style.ApplyStyle(mouseOverStyle);
bApllyStyles = false;
}
}
// On default style apply expanded style
if(bApllyStyles && node.Expanded && style!=null)
{
ElementStyle expandedStyle=context.ExpandedNodeStyle;
if(node.StyleExpanded!=null)
expandedStyle=node.StyleExpanded;
if(expandedStyle!=null)
style.ApplyStyle(expandedStyle);
}
// Apply selected style if needed too
if(bApllyStyles && node.IsSelected && style!=null)
{
ElementStyle selectedStyle=context.SelectedNodeStyle;
if(node.StyleSelected!=null)
selectedStyle=node.StyleSelected;
if(selectedStyle!=null)
style.ApplyStyle(selectedStyle);
}
Region backRegion=null;
if(style!=null)
{
if(style.Font==null)
style.Font=context.DefaultFont;
context.NodeRendererEventArgs.Graphics=context.Graphics;
context.NodeRendererEventArgs.Node = node;
context.NodeRendererEventArgs.NodeBounds = r;
context.NodeRendererEventArgs.Style = style;
renderer.DrawNodeBackground(context.NodeRendererEventArgs);
ElementStyleDisplayInfo di=new ElementStyleDisplayInfo(style,context.Graphics,DisplayHelp.GetDrawRectangle(r));
//ElementStyleDisplay.Paint(di);
backRegion=ElementStyleDisplay.GetStyleRegion(di);
}
if(NodeDisplay.DrawExpandPart(node))
{
r=NodeDisplay.GetNodeRectangle(eNodeRectanglePart.ExpandBounds,node,context.Offset);
context.ExpandDisplayInfo.Node=node;
context.ExpandDisplayInfo.ExpandPartBounds=r;
//context.ExpandDisplayInfo.MouseOver=(node.MouseOverNodePart==eMouseOverNodePart.Expand);
//context.ExpandDisplay.DrawExpandButton(context.ExpandDisplayInfo);
renderer.DrawNodeExpandPart(context.ExpandDisplayInfo);
}
// TODO: Support for display of columns should go here
// if(node.NodesColumnHeaderVisible)
// {
// foreach(ColumnHeader col in node.NodesColumns)
// {
// r=col.Bounds;
// r.Offset(context.Offset);
// r.Offset(node.Bounds.Location);
// using(Pen pen=new Pen(Color.Yellow))
// context.Graphics.DrawRectangle(pen,Display.GetDrawRectangle(r));
// }
// }
Region oldRegion=null;
if(backRegion!=null)
{
oldRegion=context.Graphics.Clip;
context.Graphics.SetClip(backRegion,CombineMode.Replace);
}
if(!node.CommandBoundsRelative.IsEmpty)
{
r=NodeDisplay.GetNodeRectangle(eNodeRectanglePart.CommandBounds,node,context.Offset);
context.CommandDisplayInfo.Node=node;
context.CommandDisplayInfo.CommandPartBounds=r;
context.CommandDisplayInfo.Graphics = context.Graphics;
//context.CommandDisplay.DrawCommandButton(context.CommandDisplayInfo);
renderer.DrawNodeCommandPart(context.CommandDisplayInfo);
context.CommandDisplayInfo.Graphics = null;
}
ElementStyle cellStyle = null;
if(context.CellStyleDefault==null)
{
cellStyle=new ElementStyle();
cellStyle.TextColor = style.TextColor;
cellStyle.TextShadowColor = style.TextShadowColor;
cellStyle.TextShadowOffset = style.TextShadowOffset;
cellStyle.TextAlignment = style.TextAlignment;
cellStyle.TextLineAlignment = style.TextLineAlignment;
cellStyle.WordWrap = style.WordWrap;
cellStyle.Font = style.Font;
}
foreach(Cell cell in node.Cells)
{
if(cell.StyleNormal!=null)
style=cell.StyleNormal;
else if(context.CellStyleDefault!=null)
style=context.CellStyleDefault.Copy();
else
style = cellStyle;
if(!cell.Enabled && cell.StyleDisabled!=null)
style.ApplyStyle(cell.StyleDisabled);
else if(!cell.Enabled && context.CellStyleDisabled!=null)
style.ApplyStyle(context.CellStyleDisabled);
else if(cell.IsMouseDown && cell.StyleMouseDown!=null)
style.ApplyStyle(cell.StyleMouseDown);
else if(cell.IsMouseDown && context.CellStyleMouseDown!=null)
style.ApplyStyle(context.CellStyleMouseDown);
else
{
if(cell.IsSelected && cell.StyleSelected!=null)
style.ApplyStyle(cell.StyleSelected);
else if(cell.IsSelected && context.CellStyleSelected!=null)
style.ApplyStyle(context.CellStyleSelected);
if(cell.IsMouseOver && cell.StyleMouseOver!=null)
style.ApplyStyle(cell.StyleMouseOver);
else if(cell.IsMouseOver && context.CellStyleMouseOver!=null)
style.ApplyStyle(context.CellStyleMouseOver);
}
r=NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeBounds,node,context.Offset);
if(style!=null)
{
if(style.Font==null)
style.Font=context.DefaultFont;
Rectangle rCell=cell.BoundsRelative;
Rectangle rText=cell.TextContentBounds;
rCell.Offset(r.Location);
rText.Offset(r.Location);
ElementStyleDisplayInfo di=GetElementStyleDisplayInfo(style,context.Graphics,DisplayHelp.GetDrawRectangle(rCell));
ElementStyleDisplay.Paint(di);
NodeCellRendererEventArgs ci=GetCellDisplayInfo(style,context.Graphics,cell,r.Location, rCell, rText);
if(ci.Cell.CheckBoxVisible)
renderer.DrawCellCheckBox(ci); //CellDisplay.PaintCellCheckBox(ci);
if(!ci.Cell.Images.LargestImageSize.IsEmpty)
renderer.DrawCellImage(ci); //CellDisplay.PaintCellImage(ci);
renderer.DrawCellText(ci) ; //CellDisplay.PaintText(ci);
//CellDisplay.PaintCell(ci);
}
}
if(backRegion!=null)
context.Graphics.SetClip(oldRegion,CombineMode.Replace);
}
private void PaintNode(Node node, NodeDisplayContext context)
{
if(!node.Visible)
{
node.SelectedConnectorMarker = false;
return;
}
Rectangle r=NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds,node,context.Offset);
if(r.IsEmpty)
{
node.SelectedConnectorMarker = false;
return;
}
if(node.Parent!=null && !node.Parent.BoundsRelative.IsEmpty)
{
this.PaintConnector(node, context);
}
if(node.HasLinkedNodes)
{
foreach(LinkedNode linkedNode in node.LinkedNodes)
{
if(!linkedNode.Node.IsVisible)
continue;
this.PaintConnector(node,linkedNode.Node, context,true, linkedNode.ConnectorPoints);
}
}
node.SelectedConnectorMarker = false;
if(r.IntersectsWith(context.ClipRectangle) || context.ClipRectangle.IsEmpty)
PaintSingleNode(node, context);
// else if(node.HasHostedControls) // Move controls to proper location
// MoveHostedControls(node, context);
if(node.Expanded && node.Nodes.Count>0)
PaintNodes(node.Nodes,context);
}
private Node PaintNodes(NodeCollection nodes, NodeDisplayContext context)
{
Node lastPainted = null;
int count = nodes.Count;
int start = 0;
// Find first node to render in case there are lot of them
if (context.View == eView.Tree && count > 99 && /*this.Tree.NodesConnector == null &&*/ context.Offset.Y != 0)
{
int testIndex = count / 2;
int chunk = testIndex;
while (testIndex > 0 && testIndex < count)
{
chunk = chunk / 2;
Node node = nodes[testIndex];
Rectangle r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds, node, context.Offset);
if (chunk > 0 && r.Y > context.ClipRectangle.Bottom) // go back
testIndex -= chunk;
else if (chunk > 0 && r.Y < context.ClipRectangle.Y) // go forward
testIndex += chunk;
else
{
if (testIndex == 0) break;
testIndex--;
for (int i = testIndex; i >= 0; i--)
{
node = nodes[i];
r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds, node, context.Offset);
if (r.Y < context.ClipRectangle.Y)
{
start = i;
break;
}
}
break;
}
}
}
bool clipEmpty = context.ClipRectangle.IsEmpty;
for (int i = start; i < count; i++)
{
Node node = nodes[i];
if (PaintNode(node, context))
{
lastPainted = node;
Rectangle r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds, node, context.Offset);
if (!clipEmpty && r.Y > context.ClipRectangle.Bottom && !context.ClientRectangle.IsEmpty)
break;
}
}
return lastPainted;
}
private void PaintGridLines(NodeDisplayContext context)
{
PaintGridLines(context, Tree.Columns, context.ClientRectangle);
}
private NodeDisplayContext CreateDisplayContext(Graphics g, Rectangle clipRectangle)
{
NodeDisplayContext context = new NodeDisplayContext();
context.Graphics = g;
context.DefaultFont = this.Tree.Font;
context.ClipRectangle = clipRectangle;
context.Offset = this.Offset;
context.Styles = this.Tree.Styles;
context.IsBackgroundSelection = IsBackgroundSelection;
context.ClientRectangle = ElementStyleLayout.GetInnerRect(Tree.BackgroundStyle, Tree.ClientRectangle);
context.ColorScheme = Tree.ColorScheme;
context.GridRowLines = Tree.GridRowLines;
context.GridRowLineColor = Tree.GridLinesColor;
context.CellSelection = Tree.SelectionPerCell;
context.AlternateRowBrush = CreateBrush(Tree.AlternateRowColor);
context.DrawAlternateRowBackground = !Tree.AlternateRowColor.IsEmpty;
context.View = this.Tree.View;
context.TileGroupLineColor = this.Tree.TileGroupLineColor;
// Setup rendering
context.NodeRenderer = m_SystemRenderer;
if (this.Tree.NodeRenderer != null && this.Tree.RenderMode == eNodeRenderMode.Custom)
context.NodeRenderer = this.Tree.NodeRenderer;
if (GlobalManager.Renderer is Office2007Renderer)
{
context.NodeRenderer.Office2007ColorTable = ((Office2007Renderer)GlobalManager.Renderer).ColorTable;
context.NodeRenderer.ColorTable = context.NodeRenderer.Office2007ColorTable.AdvTree;
}
context.NodeRendererEventArgs = new NodeRendererEventArgs();
if (this.Tree.NodeStyle != null)
context.DefaultNodeStyle = this.Tree.NodeStyle;
else
context.DefaultNodeStyle = GetDefaultNodeStyle();
if (this.Tree.NodeStyleExpanded != null)
context.ExpandedNodeStyle = this.Tree.NodeStyleExpanded;
if (this.Tree.NodeStyleSelected != null)
context.SelectedNodeStyle = this.Tree.NodeStyleSelected;
if (this.Tree.NodeStyleMouseOver != null)
context.MouseOverNodeStyle = this.Tree.NodeStyleMouseOver;
if (this.Tree.CellStyleDefault != null)
context.CellStyleDefault = this.Tree.CellStyleDefault;
if (this.Tree.CellStyleDisabled != null)
context.CellStyleDisabled = this.Tree.CellStyleDisabled;
else
context.CellStyleDisabled = ElementStyle.GetDefaultDisabledCellStyle();
if (this.Tree.CellStyleMouseDown != null)
context.CellStyleMouseDown = this.Tree.CellStyleMouseDown;
if (this.Tree.CellStyleMouseOver != null)
context.CellStyleMouseOver = this.Tree.CellStyleMouseOver;
if (this.Tree.CellStyleSelected != null)
context.CellStyleSelected = this.Tree.CellStyleSelected;
else
context.CellStyleSelected = ElementStyle.GetDefaultSelectedCellStyle();
// Setup connector
context.ConnectorDisplayInfo = new ConnectorRendererEventArgs();
context.ConnectorDisplayInfo.Graphics = context.Graphics;
// Setup Node Expander Painter
context.ExpandDisplayInfo = new NodeExpandPartRendererEventArgs(context.Graphics);
context.ExpandDisplayInfo.BackColor = this.Tree.GetColor(this.Tree.ExpandBackColor, this.Tree.ExpandBackColorSchemePart);
context.ExpandDisplayInfo.BackColor2 = this.Tree.GetColor(this.Tree.ExpandBackColor2, this.Tree.ExpandBackColor2SchemePart);
context.ExpandDisplayInfo.BackColorGradientAngle = this.Tree.ExpandBackColorGradientAngle;
context.ExpandDisplayInfo.BorderColor = this.Tree.GetColor(this.Tree.ExpandBorderColor, this.Tree.ExpandBorderColorSchemePart);
context.ExpandDisplayInfo.ExpandLineColor = this.Tree.GetColor(this.Tree.ExpandLineColor, this.Tree.ExpandLineColorSchemePart);
context.ExpandDisplayInfo.Graphics = context.Graphics;
context.ExpandDisplayInfo.ExpandButtonType = this.Tree.ExpandButtonType;
context.ExpandDisplayInfo.ExpandImage = this.Tree.ExpandImage;
context.ExpandDisplayInfo.ExpandImageCollapse = this.Tree.ExpandImageCollapse;
// Setup Selection Display
context.SelectionDisplayInfo = new SelectionRendererEventArgs();
context.SelectionDisplayInfo.Graphics = context.Graphics;
context.SelectionDisplayInfo.SelectionBoxStyle = this.Tree.SelectionBoxStyle;
context.SelectionDisplayInfo.TreeActive = this.Tree.IsKeyboardFocusWithin || !this.Tree.SelectionFocusAware;
return context;
}
private void PaintGridLines(NodeDisplayContext context, ColumnHeaderCollection columnHeaderCollection, Rectangle bounds)
{
Color color = this.Tree.GridLinesColor.IsEmpty ? context.NodeRenderer.ColorTable.GridLines : this.Tree.GridLinesColor;
Graphics g = context.Graphics;
for (int i = 0; i < columnHeaderCollection.Count; i++)
{
ColumnHeader columnHeader = columnHeaderCollection.ColumnAtDisplayIndex(i);
if (!columnHeader.Visible || columnHeader.Bounds.Width <= 0) continue;
Rectangle r = columnHeader.Bounds;
r.Offset(context.Offset);
if (columnHeaderCollection.ParentNode == null)
{
r.Offset(bounds.Location);
if (!columnHeader.CellsBackColor.IsEmpty)
{
SmoothingMode oldSmoothing = g.SmoothingMode;
g.SmoothingMode = SmoothingMode.None;
Rectangle rBack = new Rectangle(r.X - 5, context.ClientRectangle.Y, r.Width + 4, context.ClientRectangle.Height);
using (SolidBrush brush = new SolidBrush(columnHeader.CellsBackColor))
g.FillRectangle(brush, rBack);
g.SmoothingMode = oldSmoothing;
}
}
DisplayHelp.DrawLine(g, r.Right - (columnHeader.IsLastVisible ? 0 : 1), bounds.Y, r.Right - (columnHeader.IsLastVisible ? 0 : 1), bounds.Bottom, color, 1);
}
}
private ElementStyle GetEffectiveNodeBackgroundStyle(Node node, NodeDisplayContext context)
{
ElementStyle style = context.DefaultNodeStyle.Copy();
bool bApplyStyles = true;
bool isSelected = (node.IsSelected && node.IsSelectionVisible);
if (isSelected && context.SelectedNodeStyle == null && node.StyleSelected == null && !node.FullRowBackground) bApplyStyles = false;
if (isSelected && (context.SelectedNodeStyle == null || context.SelectedNodeStyle.TextColor.IsEmpty) &&
(node.StyleSelected == null || node.StyleSelected.TextColor.IsEmpty))
{
eSelectionStyle ss = Tree.SelectionBoxStyle;
TreeSelectionColors table = context.NodeRenderer.ColorTable.Selection;
if (context.SelectionDisplayInfo.TreeActive)
{
if (ss == eSelectionStyle.FullRowSelect && !table.FullRowSelect.TextColor.IsEmpty)
style.TextColor = table.FullRowSelect.TextColor;
else if (ss == eSelectionStyle.HighlightCells && !table.HighlightCells.TextColor.IsEmpty)
style.TextColor = table.HighlightCells.TextColor;
else if (ss == eSelectionStyle.NodeMarker && !table.NodeMarker.TextColor.IsEmpty)
style.TextColor = table.NodeMarker.TextColor;
}
else
{
if (ss == eSelectionStyle.FullRowSelect && !table.FullRowSelectInactive.TextColor.IsEmpty)
style.TextColor = table.FullRowSelectInactive.TextColor;
else if (ss == eSelectionStyle.HighlightCells && !table.HighlightCellsInactive.TextColor.IsEmpty)
style.TextColor = table.HighlightCellsInactive.TextColor;
else if (ss == eSelectionStyle.NodeMarker && !table.NodeMarkerInactive.TextColor.IsEmpty)
style.TextColor = table.NodeMarkerInactive.TextColor;
}
}
else if (this.Tree.HotTracking && !node.IsSelected && node.Selectable && this.Tree.MouseOverNode == node)
{
SelectionColorTable table = context.NodeRenderer.ColorTable.Selection.NodeHotTracking;
if (!table.TextColor.IsEmpty)
style.TextColor = table.TextColor;
}
if (node.Style != null)
{
if (bApplyStyles)
style.ApplyStyle(node.Style); //=node.Style.Copy();
else
style.ApplyFontStyle(node.Style);
}
if (bApplyStyles && node.MouseOverNodePart == eMouseOverNodePart.Node && style != null)
{
ElementStyle mouseOverStyle = context.MouseOverNodeStyle;
if (node.StyleMouseOver != null)
{
mouseOverStyle = node.StyleMouseOver;
bApplyStyles = false;
}
if (mouseOverStyle != null)
{
style.ApplyStyle(mouseOverStyle);
bApplyStyles = false;
}
}
// On default style apply expanded style
if (bApplyStyles && node.Expanded && style != null)
{
ElementStyle expandedStyle = context.ExpandedNodeStyle;
if (node.StyleExpanded != null)
expandedStyle = node.StyleExpanded;
if (expandedStyle != null)
style.ApplyStyle(expandedStyle);
}
// Apply selected style if needed too
if (bApplyStyles && node.IsSelected && style != null)
{
ElementStyle selectedStyle = context.SelectedNodeStyle;
if (node.StyleSelected != null)
selectedStyle = node.StyleSelected;
if (selectedStyle != null)
style.ApplyStyle(selectedStyle);
}
if (style != null)
{
if (style.Font == null)
style.Font = context.DefaultFont;
}
return style;
}
private void PaintFullRowBackgroundForNodes(NodeDisplayContext context, ArrayList nodesCollection)
{
Rectangle clientRectangle = context.ClientRectangle;
if (this.Tree.VScrollBar != null) clientRectangle.Width -= this.Tree.VScrollBar.Width;
foreach (Node node in nodesCollection)
{
Rectangle r = NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds, node, context.Offset);
if (!r.IsEmpty)
{
r.X = clientRectangle.X;
r.Width = clientRectangle.Width;
r.Inflate(0, 1);
}
if (r.IsEmpty || !r.IntersectsWith(context.ClipRectangle) && !context.ClipRectangle.IsEmpty)
continue;
ElementStyle style = GetEffectiveNodeBackgroundStyle(node, context);
if (style == null)
continue;
TreeRenderer renderer = context.NodeRenderer;
if (node.NodeRenderer != null && node.RenderMode == eNodeRenderMode.Custom)
renderer = node.NodeRenderer;
if (style != null)
{
context.NodeRendererEventArgs.Graphics = context.Graphics;
context.NodeRendererEventArgs.Node = node;
context.NodeRendererEventArgs.NodeBounds = r;
context.NodeRendererEventArgs.Style = style;
renderer.DrawNodeBackground(context.NodeRendererEventArgs);
}
}
}
private void PaintConnector(Node fromNode, Node toNode, NodeDisplayContext context,bool linkConnector)
{
PaintConnector(fromNode, toNode, context, linkConnector, null);
}
private void PaintDragInsertMarker(NodeDisplayContext context, Rectangle dragInsertionBounds)
{
if (dragInsertionBounds.IsEmpty) return;
context.NodeRenderer.DrawDragDropMarker(new DragDropMarkerRendererEventArgs(context.Graphics, dragInsertionBounds));
}
private void PaintConnector(Node toNode, NodeDisplayContext context)
{
PaintConnector(toNode.Parent, toNode, context,false);
}
private void PaintSelection(NodeDisplayContext context)
{
if(this.Tree.SelectedNode!=null && this.Tree.SelectedNode.Visible && this.Tree.SelectionBox)
{
context.SelectionDisplayInfo.Node=this.Tree.SelectedNode;
context.SelectionDisplayInfo.Bounds=NodeDisplay.GetNodeRectangle(eNodeRectanglePart.NodeContentBounds, context.SelectionDisplayInfo.Node, context.Offset);
//context.SelectionDisplay.PaintSelection(context.SelectionDisplayInfo);
context.NodeRenderer.DrawSelection(context.SelectionDisplayInfo);
}
}