/// <summary>
/// TODO: Implement proper clipping to improve performance with alot of objects
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void GraphEditorClass_Paint(object sender, PaintEventArgs e)
{
if (DesignMode)
{
GraphNode node = new GraphNodeRoundedRectangle(Guid.NewGuid(),
new RectangleF(10.0f, 10.0f, 100.0f, 50.0f), 0.0f, Color.AliceBlue, Color.Black, Color.Red, Color.Black, Color.Black);
node.Label = "DEMO1";
var g = e.Graphics;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
if (DrawDropShadow)
{
node.DrawDropShadow(g, DropShadowOffsetX, DropShadowOffsetY);
}
node.Draw(g, this.Font, false);
}
else
{
Graphics g = e.Graphics;
//List<GraphNode> drawNodes = new List<GraphNode>();
//List<GraphLine> drawLines = new List<GraphLine>();
List <GraphNode> drawNodes = new List <GraphNode>(_nodes);
List <GraphLine> drawLines = new List <GraphLine>(_lines);
List <GraphLinkLine> drawLinkLines = new List <GraphLinkLine>(_linkLines);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.ScaleTransform(_zoom, _zoom);
g.TranslateTransform(-_scrollPosition.X, -_scrollPosition.Y);
//g.ScaleTransform(_zoom, _zoom);
//g.TranslateTransform(-_scrollPosition.X, -_scrollPosition.Y);
//foreach (GraphNode n in _nodes)
//{
// RectangleF boundary = n.Boundary;
// if (DrawDropShadow)
// {
// boundary = new RectangleF(boundary.Location, new SizeF(boundary.Width + DropShadowOffsetX, boundary.Height + DropShadowOffsetY));
// }
// if (g.Clip.IsVisible(boundary))
// {
// drawNodes.Add(n);
// }
//}
//foreach (GraphLine l in _lines)
//{
// if (g.Clip.IsVisible(GraphUtils.GetLineBoundingBox(l.SourceShape.Center, l.DestShape.Center)))
// {
// drawLines.Add(l);
// }
//}
if (DrawDropShadow)
{
foreach (var n in drawNodes)
{
n.DrawDropShadow(g, DropShadowOffsetX, DropShadowOffsetY);
}
}
foreach (var l in drawLinkLines)
{
l.Draw(g);
}
foreach (var l in drawLines)
{
if (l != _selectedObject)
{
l.Draw(g, this.Font, false);
}
}
foreach (var s in drawNodes)
{
s.Draw(g, this.Font, s == _selectedObject);
}
// Always draw a selected line above everything
if (_selectedObject is GraphLine)
{
GraphLine l = _selectedObject as GraphLine;
l.Draw(g, this.Font, true);
}
// We are dragging a line from a graph node
if ((_draggingMode == DraggingMode.DrawLine) && (_selectedObject != null) && (_selectedObject is GraphNode))
{
Pen p = null;
GraphNode node = _selectedObject as GraphNode;
try
{
p = new Pen(Brushes.Black);
g.DrawLine(p, node.Center, _lastDragPoint);
}
finally
{
if (p != null)
{
p.Dispose();
}
}
}
}
}
/// <summary>
/// TODO: Implement proper clipping to improve performance with alot of objects
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void GraphEditorClass_Paint(object sender, PaintEventArgs e)
{
if (DesignMode)
{
GraphNode node = new GraphNodeRoundedRectangle(Guid.NewGuid(),
new RectangleF(10.0f, 10.0f, 100.0f, 50.0f), 0.0f, Color.AliceBlue, Color.Black, Color.Red, Color.Black, Color.Black);
node.Label = "DEMO1";
var g = e.Graphics;
g.SmoothingMode = SmoothingMode.AntiAlias;
if (DrawDropShadow)
{
node.DrawDropShadow(g, DropShadowOffsetX, DropShadowOffsetY);
}
node.Draw(g, this.Font, false);
}
else
{
Graphics g = e.Graphics;
List <GraphNode> drawNodes = new List <GraphNode>(_nodes);
List <GraphLine> drawLines = new List <GraphLine>(_lines);
List <GraphLinkLine> drawLinkLines = new List <GraphLinkLine>(_linkLines);
g.SmoothingMode = SmoothingMode.AntiAlias;
g.TranslateTransform(-_scrollPosition.X, -_scrollPosition.Y);
if (DrawDropShadow)
{
foreach (var n in drawNodes)
{
n.DrawDropShadow(g, DropShadowOffsetX, DropShadowOffsetY);
}
}
foreach (var l in drawLinkLines)
{
l.Draw(g);
}
foreach (var l in drawLines)
{
if (l != _selectedObject)
{
l.Draw(g, this.Font, false);
}
}
foreach (var s in drawNodes)
{
s.Draw(g, this.Font, s == _selectedObject);
}
// Always draw a selected line above everything
if (_selectedObject is GraphLine)
{
GraphLine l = _selectedObject as GraphLine;
l.Draw(g, this.Font, true);
}
// We are dragging a line from a graph node
if ((_draggingMode == DraggingMode.DrawLine) && (_selectedObject != null) && (_selectedObject is GraphNode))
{
Pen p = null;
GraphNode node = _selectedObject as GraphNode;
try
{
p = new Pen(Brushes.Black);
g.DrawLine(p, node.Center, _lastDragPoint);
}
finally
{
if (p != null)
{
p.Dispose();
}
}
}
}
}