public Connection PickConnectionWithText(float x, float y)
{
var pickedNode = Graph.PickNode(x, y);
if (pickedNode == null)
{
return(null);
}
foreach (var output in pickedNode.Outputs)
{
var s = NvgHelper.MeasureString(output.Text);
var bound = output.GetBounds();
var r = bound.Radius;
var twor = 2 * r;
var outputRect = new Rectangle(bound.X - twor - s.Width, bound.Y - r, s.Width, s.Height);
if (!outputRect.Pick(x, y))
{
continue;
}
return(output);
}
return(null);
}
public static void StartEditing(MainWindow window, Connection output)
{
var s = NvgHelper.MeasureString(output.Text);
var bound = output.GetBounds();
var r = bound.Radius;
var twor = 2 * r;
var outputRect = new Rectangle(bound.X - twor - s.Width - 3, bound.Y - r - 3, s.Width + 6, s.Height + 6);
if (TextBox != null)
{
Destroy();
}
EditingConnection = output;
TextBox = new TextBox(window, outputRect)
{
Text = output.Text,
CursorPos = output.Text.Length
};
TextBox.Commit += (sender, args) =>
{
var finalText = ((TextBox)sender).Text;
if (string.IsNullOrWhiteSpace(finalText))
{
finalText = "Empty Dialog Option";
}
EditingConnection.Text = finalText;
Destroy(false);
};
}
public static TextBox PickAndCreate(MainWindow window, Graph graph, float x, float y)
{
var pickedNode = graph.PickNode(x, y);
if (TextBox != null && TextBox.BoundingBox.Pick(x, y))
{
return(TextBox);
}
if (pickedNode == null)
{
return(null);
}
foreach (var output in pickedNode.Outputs)
{
var s = NvgHelper.MeasureString(output.Text);
var bound = output.GetBounds();
var r = bound.Radius;
var twor = 2 * r;
var outputRect = new Rectangle(bound.X - twor - s.Width, bound.Y - r, s.Width, s.Height);
if (!outputRect.Pick(x, y) || !output.CanEditName)
{
continue;
}
StartEditing(window, output);
return(TextBox);
}
return(null);
}
public void Render()
{
var picked = Pick(_window.MouseScreenSpace.X, _window.MouseScreenSpace.Y);
var lineHeight = (int)(_window.FontLineHeight * 1.5f);
NanoVG.nvgFillColor(MainWindow.Nvg, picked ? Color.LightGray.ToNvgColor() : Color.White.ToNvgColor());
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgRect(MainWindow.Nvg, 0, lineHeight * Index, Parent.Width, lineHeight);
NanoVG.nvgFill(MainWindow.Nvg);
NanoVG.nvgSave(MainWindow.Nvg);
NanoVG.nvgFillColor(MainWindow.Nvg, Color.Black.ToNvgColor());
NanoVG.nvgTranslate(MainWindow.Nvg, 3, lineHeight * Index + 3);
if (Shortcut == null)
{
NvgHelper.RenderString(Text);
}
else
{
NvgHelper.RenderString($"{Shortcut} {Text}");
NanoVG.nvgFillColor(MainWindow.Nvg, Color.DarkGray.ToNvgColor());
NvgHelper.RenderString(Shortcut);
}
NanoVG.nvgRestore(MainWindow.Nvg);
}
public void RenderNode(Node node)
{
if (!ScreenContains(node))
{
return;
}
const int borderRadius = 6;
const int panelInset = 2;
const float halfPanelInset = panelInset / 2f;
var headerHeight = (int)(_window.FontLineHeight * 1.2f);
NanoVG.nvgSave(MainWindow.Nvg);
if (_window.Selection.SelectedNodes.Contains(node))
{
NanoVG.nvgFillColor(MainWindow.Nvg, Color.Black.ToNvgColor());
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgRoundedRect(MainWindow.Nvg, node.X - panelInset - 2, node.Y - 2, node.Width + 2 * (2 + panelInset), node.Height + 4, borderRadius + 2);
NanoVG.nvgFill(MainWindow.Nvg);
}
NanoVG.nvgFillColor(MainWindow.Nvg, _colorMap.ContainsKey(node.NodeInfo) ? _colorMap[node.NodeInfo] : NanoVG.nvgRGBA(0, 0, 0, 255));
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgRoundedRect(MainWindow.Nvg, node.X - panelInset, node.Y, node.Width + 2 * panelInset, node.Height, borderRadius);
NanoVG.nvgFill(MainWindow.Nvg);
NanoVG.nvgFillColor(MainWindow.Nvg, Color.DarkSlateGray.ToNvgColor());
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgRoundedRect(MainWindow.Nvg, node.X, node.Y + headerHeight + panelInset,
node.Width, node.Height - headerHeight - 2 * panelInset,
borderRadius - halfPanelInset);
NanoVG.nvgFill(MainWindow.Nvg);
NanoVG.nvgFillColor(MainWindow.Nvg, Color.White.ToNvgColor());
NanoVG.nvgSave(MainWindow.Nvg);
var headerOffset = (headerHeight + panelInset) / 2f - NvgHelper.MeasureString(node.Name).Height / 2;
NanoVG.nvgTranslate(MainWindow.Nvg, (int)(node.X + 2 * panelInset), (int)(node.Y + headerOffset));
NvgHelper.RenderString(node.Name);
NanoVG.nvgRestore(MainWindow.Nvg);
if (node.Input != null)
{
RenderConnector(node.Input);
}
foreach (var nodeOutput in node.Outputs)
{
RenderConnector(nodeOutput);
}
NanoVG.nvgRestore(MainWindow.Nvg);
}
public int GetNodeWidth(Node node)
{
var width = 120;
const int textPadding = 40;
width = (int)Math.Max(NvgHelper.MeasureString(node.Name).Width + textPadding, width);
if (node.Input != null)
{
width = (int)Math.Max(NvgHelper.MeasureString(node.Input.Text).Width + textPadding, width);
}
foreach (var connection in node.Outputs)
{
width = (int)Math.Max(NvgHelper.MeasureString(connection.Text).Width + textPadding, width);
}
width = (int)(Math.Ceiling(width / gridPitch) * gridPitch);
return(width);
}
private void RenderConnector(Connection connection)
{
NanoVG.nvgSave(MainWindow.Nvg);
var pickedForDeletion =
_window.Selection.HoveringConnection == connection && _window.Keyboard[Key.ShiftLeft];
var bound = connection.GetBounds();
var r = bound.Radius;
var twor = 2 * r;
var halfr = r / 2;
const int cxnBorderWidth = 2;
NanoVG.nvgFillColor(MainWindow.Nvg, Color.White.ToNvgColor());
NanoVG.nvgSave(MainWindow.Nvg);
if (connection != TextBoxHandler.EditingConnection)
{
switch (connection.Side)
{
case NodeSide.Input:
NanoVG.nvgTranslate(MainWindow.Nvg, bound.X + twor, bound.Y - r);
NvgHelper.RenderString(connection.Text);
break;
case NodeSide.Output:
var s = connection.Text;
NanoVG.nvgTranslate(MainWindow.Nvg, bound.X - twor - NvgHelper.MeasureString(s).Width, bound.Y - r);
NvgHelper.RenderString(s);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else
{
TextBoxHandler.TextBox.RenderBackground();
TextBoxHandler.TextBox.RenderForeground();
}
NanoVG.nvgRestore(MainWindow.Nvg);
NanoVG.nvgFillColor(MainWindow.Nvg, Color.DarkSlateGray.ToNvgColor());
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgCircle(MainWindow.Nvg, bound.X, bound.Y, r + cxnBorderWidth);
NanoVG.nvgFill(MainWindow.Nvg);
NanoVG.nvgFillColor(MainWindow.Nvg, connection.Side == NodeSide.Input ? Color.DeepSkyBlue.ToNvgColor() : Color.LimeGreen.ToNvgColor());
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgCircle(MainWindow.Nvg, bound.X, bound.Y, r);
NanoVG.nvgFill(MainWindow.Nvg);
NanoVG.nvgBeginPath(MainWindow.Nvg);
if (_window.Selection.HoveringConnection != null && _window.Selection.DraggingConnection == connection &&
_window.Selection.HoveringConnection.Side != _window.Selection.DraggingConnection.Side)
{
NanoVG.nvgFillColor(MainWindow.Nvg, Color.SlateGray.ToNvgColor());
}
else if (connection.ConnectedNode != null)
{
NanoVG.nvgFillColor(MainWindow.Nvg, Color.DarkSlateGray.ToNvgColor());
}
NanoVG.nvgCircle(MainWindow.Nvg, bound.X, bound.Y, halfr);
NanoVG.nvgFill(MainWindow.Nvg);
if (pickedForDeletion)
{
NanoVG.nvgFillColor(MainWindow.Nvg, Color.Red.ToNvgColor());
NanoVG.nvgBeginPath(MainWindow.Nvg);
NanoVG.nvgCircle(MainWindow.Nvg, bound.X, bound.Y, halfr);
NanoVG.nvgFill(MainWindow.Nvg);
}
NanoVG.nvgRestore(MainWindow.Nvg);
}
private void Render(object sender, FrameEventArgs e)
{
// Reset the view
GL.Clear(ClearBufferMask.ColorBufferBit |
ClearBufferMask.DepthBufferBit |
ClearBufferMask.StencilBufferBit);
//GL.PushMatrix();
NanoVG.nvgBeginFrame(Nvg, Width, Height, 1);
NanoVG.nvgSave(Nvg);
NanoVG.nvgScale(Nvg, Zoom, Zoom);
//_grid.Draw();
NanoVG.nvgTranslate(Nvg, _nodeRenderer.gridOffset.X, _nodeRenderer.gridOffset.Y);
NanoVG.nvgStrokeWidth(Nvg, 2);
NanoVG.nvgStrokeColor(Nvg, NanoVG.nvgRGBA(0, 0, 0, 255));
NanoVG.nvgBeginPath(Nvg);
NanoVG.nvgMoveTo(Nvg, -_nodeRenderer.gridPitch, 0);
NanoVG.nvgLineTo(Nvg, _nodeRenderer.gridPitch, 0);
NanoVG.nvgStroke(Nvg);
NanoVG.nvgBeginPath(Nvg);
NanoVG.nvgMoveTo(Nvg, 0, -_nodeRenderer.gridPitch);
NanoVG.nvgLineTo(Nvg, 0, _nodeRenderer.gridPitch);
NanoVG.nvgStroke(Nvg);
const int cxnLineWidth = 3;
NanoVG.nvgStrokeWidth(Nvg, cxnLineWidth);
if (Selection.DraggingConnection != null)
{
var end = _mouseCanvasSpace;
if (Selection.CreatingConnectedNode)
{
end = new Vector2(_contextMenu.X, _contextMenu.Y);
}
var picked = Selection.HoveringConnection;
if (picked != null && picked.Side != Selection.DraggingConnection.Side)
{
var b = picked.GetBounds();
end = new Vector2(b.X, b.Y);
}
_nodeRenderer.RenderConnection(Selection.DraggingConnection, end);
}
foreach (var node in Graph)
{
_nodeRenderer.RenderConnections(node);
}
foreach (var node in Graph)
{
_nodeRenderer.RenderNode(node);
}
if (Selection.SelectionRectangle != null && Selection.SelectionRectangle.Width != 0 && Selection.SelectionRectangle.Height != 0)
{
NanoVG.nvgFillColor(Nvg, _selectionRectangleColor.ToNvgColor());
NanoVG.nvgBeginPath(Nvg);
var r = Selection.SelectionRectangle;
var x = Math.Min(r.X, r.X + r.Width);
var y = Math.Min(r.Y, r.Y + r.Height);
var w = Math.Abs(r.Width);
var h = Math.Abs(r.Height);
NanoVG.nvgRect(Nvg, x, y, w, h);
NanoVG.nvgFill(Nvg);
}
NanoVG.nvgRestore(Nvg);
_contextMenu.Render();
GL.Color4(0, 0, 0, 1f);
if (Keyboard[Key.D] && Focused && TextBoxHandler.TextBox == null)
{
// Static diagnostic header
NanoVG.nvgSave(Nvg);
NanoVG.nvgFillColor(Nvg, Color.Black.ToNvgColor());
NvgHelper.RenderString($"{Zoom}x Zoom");
NanoVG.nvgTranslate(Nvg, 0, FontLineHeight);
NvgHelper.RenderString($"{Graph.Count} Nodes");
// Sparklines
// GL.Translate(5, (int)(Height - Font.Common.LineHeight * 1.4f * 2), 0);
// _fpsSparkline.Render(Color.Blue, Color.LimeGreen);
// GL.Translate(0, (int)(Font.Common.LineHeight * 1.4f), 0);
// _renderTimeSparkline.Render(Color.Blue, Color.LimeGreen);
NanoVG.nvgRestore(Nvg);
}
NanoVG.nvgEndFrame(Nvg);
// Swap the graphics buffer
SwapBuffers();
}