private void DrawOneLegend(Graphics graphics, PointF pivot, GooTypeProxy info, float size, float mult)
{
float height = size * mult;
float padding = size * (1 - mult) / 2;
RectangleF fillRect = new RectangleF(pivot.X, pivot.Y - size, size, size);
fillRect.Inflate(-padding, -padding);
graphics.FillPath(new SolidBrush(info.ShowColor), CanvasRenderEngine.GetRoundRectangle_Obsolete(fillRect, padding));
graphics.DrawString(info.TypeName, new Font(GH_FontServer.Standard.FontFamily, height / 2), new SolidBrush(Owner.LegendTextColor), new PointF(pivot.X + size + padding, pivot.Y - height - padding));
}
private void DrawLegend(Graphics graphics)
{
if (Owner.ShowProxy.Count == 0)
{
return;
}
float zoom = Grasshopper.Instances.ActiveCanvas.Viewport.Zoom;
float size = (float)Owner.LegendSize / zoom;
float spacing = (float)Owner.LegendSpacing / zoom;
float mult = 0.8f;
float width = 0f;
foreach (var info in Owner.ShowProxy)
{
float newWidth = graphics.MeasureString(info.TypeName, new Font(GH_FontServer.Standard.FontFamily, size * mult / 2)).Width;
if (newWidth > width)
{
width = newWidth;
}
}
float height = Owner.ShowProxy.Count * size;
width += size;
float oneWayWidth = width;
RectangleF rect = Grasshopper.Instances.ActiveCanvas.Viewport.VisibleRegion;
int heightMult = (int)(height / (rect.Height - 2 * spacing));
if (heightMult > 0)
{
height = rect.Height - 2 * spacing;
width += heightMult * (width + size);
}
PointF pivot;
switch (Owner.LegendLocation)
{
case 0:
pivot = new PointF(rect.X + spacing, rect.Y + height + spacing);
break;
case 1:
pivot = new PointF(rect.X + spacing, rect.Y + rect.Height - spacing);
break;
case 2:
pivot = new PointF(rect.Right - width - spacing, rect.Y + rect.Height - spacing);
break;
case 3:
pivot = new PointF(rect.Right - width - spacing, rect.Y + height + spacing);
break;
default:
pivot = new PointF(rect.X, rect.Y + height);
break;
}
RectangleF background = new RectangleF(pivot.X, pivot.Y - height, width, height);
background.Inflate(size / 4, size / 4);
GraphicsPath path = CanvasRenderEngine.GetRoundRectangle_Obsolete(background, size / 4);
graphics.FillPath(new SolidBrush(Owner.LegendBackGroundColor), path);
graphics.DrawPath(new Pen(Owner.LegendBoundaryColor, size / 15), path);
float actHeight = 0;
float startY = pivot.Y;
foreach (var info in Owner.ShowProxy)
{
DrawOneLegend(graphics, pivot, info, size, mult);
actHeight += size;
if (actHeight > rect.Height - 2 * spacing)
{
actHeight = 0;
pivot = new PointF(pivot.X + oneWayWidth + size, startY);
}
else
{
pivot = new PointF(pivot.X, pivot.Y - size);
}
}
}