public bool GetInput(int dataAccessIndex, out Grasshopper.Kernel.Data.GH_Structure <GH_Point> dataTree, bool checkNull, bool checkEmpty, bool silent)
{
if (!this.dataAccess.GetDataTree <GH_Point>(dataAccessIndex, out dataTree))
{
if (!silent)
{
Print("DataAccess.GetData() failed at index: " + dataAccessIndex.ToString() + ".");
}
return(false);
}
if (checkNull)
{
if (dataTree == null)
{
if (!silent)
{
Print("DataAccess.GetData(" + dataAccessIndex.ToString() + ", dataTree) returned null.");
}
return(false);
}
}
if (checkEmpty)
{
if (dataTree.Branches.Count == 0)
{
if (!silent)
{
Print("DataAccess.GetData() returned data tree with no branches at index: " + dataAccessIndex.ToString() + ".");
}
return(false);
}
}
return(true);
}
public bool GetInput(int dataAccessIndex, out Grasshopper.Kernel.Data.GH_Structure <GH_Point> dataTree)
{
return(GetInput(dataAccessIndex, out dataTree, true, true, false));
}
/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object is used to retrieve from inputs and store in outputs.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
Grasshopper.Kernel.Data.GH_Structure <IGH_Goo> elementsToAdd = new Grasshopper.Kernel.Data.GH_Structure <IGH_Goo>();
double width = 0;
double height = 0;
List <string> rowDefinitions = new List <string>();
List <string> colDefinitions = new List <string>();
List <int> memberships = new List <int>();
if (!DA.GetDataTree <IGH_Goo>(0, out elementsToAdd))
{
return;
}
bool hasMemberships = DA.GetDataList <int>("Grid Membership", memberships);
bool hasWidth = DA.GetData <double>("Width", ref width);
bool hasHeight = DA.GetData <double>("Height", ref height);
bool hasRowDefs = DA.GetDataList <string>("Row Definitions", rowDefinitions);
bool hasColDefs = DA.GetDataList <string>("Column Definitions", colDefinitions);
if (hasMemberships)
{
if (memberships.Count != elementsToAdd.Branches.Count)
{
AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Grid Membership list length must equal the number of Elements branches.");
return;
}
}
else
{
// Create a default list of a single branch grouping to apply to all trees
memberships = new List <int>()
{
0
};
}
int[] defaultMembership = { 0 };
// Create an array of the membership values
int[] membershipArray = hasMemberships ? memberships.ToArray() : defaultMembership;
// Create empty list of branch metadata and populate with values
List <BranchMetadata> branchMetaData = new List <BranchMetadata>();
for (int i = 0; i < elementsToAdd.Branches.Count(); i++)
{
int myMembership = hasMemberships ? membershipArray[i] : 0;
BranchMetadata bm = new BranchMetadata(i, myMembership);
branchMetaData.Add(bm);
}
// Sort and group the metadata
var branchGroupings = branchMetaData
.OrderBy(b => b.membershipIndex)
.GroupBy(b => b.membershipIndex);
// create an empty List of grids and populate
List <Grid> grids = new List <Grid>();
foreach (var group in branchGroupings)
{
//initialize a grid
Grid grid = new Grid();
grid.HorizontalAlignment = HorizontalAlignment.Left;
grid.VerticalAlignment = VerticalAlignment.Top;
grid.Name = "GH_Grid";
if (hasWidth)
{
grid.Width = width;
}
else
{
grid.HorizontalAlignment = HorizontalAlignment.Stretch;
}
if (hasHeight)
{
grid.Height = height;
}
else
{
grid.VerticalAlignment = VerticalAlignment.Stretch;
}
// Add grid to List
grids.Add(grid);
}
// Populate the Grids (should this be done before adding the grids to the List?)
foreach (var group in branchGroupings)
{
// Count the number of branches in this array
int currentBranchCount = group.Count();
//set up a "GridLengthConverter" to handle parsing our strings.
GridLengthConverter gridLengthConverter = new GridLengthConverter();
//set up rows and columns if present
if (hasColDefs)
{
for (int i = 0; i < currentBranchCount; i++)
{
ColumnDefinition cd = new ColumnDefinition();
cd.Width = (GridLength)gridLengthConverter.ConvertFromString(colDefinitions[i % colDefinitions.Count]); // use repeating pattern of supplied list
// Note: group.Key is the index of the group/grid
grids[group.Key].ColumnDefinitions.Add(cd);
}
}
if (hasRowDefs)
{
int maxCount = 0;
// Find the count of the longest list
foreach (BranchMetadata md in group)
{
// get the count of data from the branch
var myCount = elementsToAdd.get_Branch(elementsToAdd.get_Path(md.branchIndex)).Count;
if (myCount > maxCount)
{
maxCount = myCount;
}
}
// Build up the row heights based on a repeating pattern
for (int i = 0; i < maxCount; i++)
{
RowDefinition rd = new RowDefinition();
rd.Height = (GridLength)gridLengthConverter.ConvertFromString(rowDefinitions[i % rowDefinitions.Count]); // use repeating pattern of supplied list
// Note: group.Key is the index of the group/grid
grids[group.Key].RowDefinitions.Add(rd);
}
}
// Set up a counter for iterating through the appropriate number of columns
int currentColumn = 0;
// Populate the Grids with Elements
foreach (BranchMetadata md in group)
{
// Get each branch referenced in the metadata
var branch = elementsToAdd.get_Branch(elementsToAdd.get_Path(md.branchIndex));
//for all the elements in each branch
for (int j = 0; j < branch.Count; j++)
{
UIElement_Goo u = branch[j] as UIElement_Goo;
//make sure it doesn't already have a parent
HUI_Util.removeParent(u.element);
FrameworkElement fe = u.element as FrameworkElement;
if (fe != null)
{
// set its alignment to stretch
// this will allow elements like sliders, pulldowns, and separators to fill the cell
fe.HorizontalAlignment = HorizontalAlignment.Stretch;
fe.VerticalAlignment = VerticalAlignment.Stretch;
//set up row and column positioning
Grid.SetColumn(fe, currentColumn);
Grid.SetRow(fe, j);
}
//add it to the grid
grids[group.Key].Children.Add(u.element);
}
// Increment the column index
currentColumn++;
}
}
// Create the list of Elements and add each grid
List <UIElement_Goo> output = new List <UIElement_Goo>();
foreach (Grid g in grids)
{
output.Add(new UIElement_Goo(g, "Simple Grid", InstanceGuid, DA.Iteration));
}
//pass the grids out
DA.SetDataList("Simple Grid", output);
}
