private ReadOnlyTree <int, int> CreateTree(params int[] values)
{
var tree = new ReadOnlyTree <int, int>();
foreach (var v in values)
{
tree = tree.Insert(v, v * v);
}
Assert.Equal(values.Length, tree.Count);
return(tree);
}
private static Layer GetOrCreateLayer(ref ReadOnlyTree <string, Layer> layers, string layerName)
{
Layer layer = null;
// entities without a layer go to '0'
layerName = layerName ?? "0";
if (layers.KeyExists(layerName))
{
layer = layers.GetValue(layerName);
}
else
{
// add the layer if previously undefined
layer = new Layer(layerName);
layers = layers.Insert(layer.Name, layer);
}
return(layer);
}
public override void Commit()
{
var dwg = workspace.Drawing;
if (this.viewModel.Layers.Any(layer => layer.IsDirty) ||
this.viewModel.Layers.Count != dwg.Layers.Count)
{
// found changes, need to update
var newLayers = new ReadOnlyTree <string, Layer>();
foreach (var layer in from layer in this.viewModel.Layers
select layer.GetUpdatedLayer())
{
newLayers = newLayers.Insert(layer.Name, layer);
}
dwg = dwg.Update(layers: newLayers);
workspace.Update(drawing: dwg);
}
}
public void LinearInsertTest()
{
int treeSize = 20;
var tree = new ReadOnlyTree <int, int>();
for (int i = 0; i < treeSize; i++)
{
tree = tree.Insert(i, i * i);
Assert.Equal(i + 1, tree.Count);
}
Assert.Equal(treeSize, tree.Count);
for (int i = 0; i < treeSize; i++)
{
int value;
Assert.True(tree.TryFind(i, out value));
Assert.Equal(i * i, value);
}
}
public void BalancedInsertionTest()
{
// 4
// / \
// / \
// 2 6
// / \ / \
// 1 3 5 7
var tree = new ReadOnlyTree <int, int>();
foreach (var i in new[] { 4, 2, 6, 1, 5, 3, 7 })
{
tree = tree.Insert(i, i * i);
}
Assert.Equal(7, tree.Count);
for (int i = 1; i <= 7; i++)
{
int value;
Assert.True(tree.TryFind(i, out value));
Assert.Equal(i * i, value);
}
}
public bool ReadDrawing(string fileName, Stream fileStream, out Drawing drawing, out ViewPort viewPort)
{
var file = DxfFile.Load(fileStream);
var layers = new ReadOnlyTree <string, Layer>();
foreach (var layer in file.Layers)
{
layers = layers.Insert(layer.Name, new Layer(layer.Name, color: layer.Color.ToColor(), isVisible: layer.IsLayerOn));
}
foreach (var item in file.Entities)
{
var layer = GetOrCreateLayer(ref layers, item.Layer);
// create the entity
var entity = item.ToEntity();
// add the entity to the appropriate layer
if (entity != null)
{
layer = layer.Add(entity);
layers = layers.Insert(layer.Name, layer);
}
}
foreach (var block in file.Blocks)
{
var layer = GetOrCreateLayer(ref layers, block.Layer);
// create the aggregate entity
var children = ReadOnlyList <Entity> .Empty();
foreach (var item in block.Entities)
{
var tempEnt = item.ToEntity();
if (tempEnt != null)
{
children = children.Add(tempEnt);
}
}
// add the entity to the appropriate layer
if (children.Count != 0)
{
layer = layer.Add(new AggregateEntity(block.BasePoint.ToPoint(), children));
layers = layers.Insert(layer.Name, layer);
}
}
drawing = new Drawing(
settings: new DrawingSettings(fileName, file.Header.UnitFormat.ToUnitFormat(), file.Header.UnitPrecision),
layers: layers,
currentLayerName: file.Header.CurrentLayer ?? layers.GetKeys().OrderBy(x => x).First(),
author: null);
drawing.Tag = file;
// prefer `*ACTIVE` view port first
// TODO: use `DxfFile.ActiveViewPort` when available
var vp = file.ViewPorts.FirstOrDefault(v => string.Compare(v.Name, DxfViewPort.ActiveViewPortName, StringComparison.OrdinalIgnoreCase) == 0)
?? file.ViewPorts.FirstOrDefault();
if (vp != null)
{
viewPort = new ViewPort(
vp.LowerLeft.ToPoint(),
vp.ViewDirection.ToVector(),
Vector.YAxis,
vp.ViewHeight);
}
else
{
viewPort = null; // auto-set it later
}
return(true);
}
public bool ReadDrawing(string fileName, Stream fileStream, out Drawing drawing, out ViewPort viewPort)
{
ReadOnlyTree <string, Layer> layers = null;
using (var reader = new StreamReader(fileStream, encoding: Encoding.UTF8, detectEncodingFromByteOrderMarks: true, bufferSize: 1024, leaveOpen: true))
{
var json = reader.ReadToEnd();
var jsonDrawing = JsonConvert.DeserializeObject <JsonDrawing>(json, Settings);
var layerList = new List <Layer>();
foreach (var jsonLayer in jsonDrawing.Floorplan.Layers)
{
var layer = new Layer(jsonLayer.Name, color: CadColor.FromArgb(255, jsonLayer.R, jsonLayer.G, jsonLayer.B));
layerList.Add(layer);
}
layers = ReadOnlyTree <string, Layer> .FromEnumerable(layerList, l => l.Name);
void AddEntityToLayer(string layerName, Entity entity)
{
var layer = layers.GetValue(layerName);
layer = layer.Add(entity);
layers = layers.Insert(layerName, layer);
}
foreach (var block in jsonDrawing.Floorplan.Blocks)
{
switch (block.Name.ToUpperInvariant())
{
case "*MODEL_SPACE":
foreach (var jsonEntity in block.Entities)
{
switch (jsonEntity)
{
case JsonArc jsonArc:
var arc = new Arc(jsonArc.Center, jsonArc.Radius, jsonArc.StartAngle * MathHelper.RadiansToDegrees, jsonArc.EndAngle * MathHelper.RadiansToDegrees, Vector.ZAxis);
AddEntityToLayer(jsonEntity.Layer, arc);
break;
case JsonLine jsonLine:
for (int i = 0; i < jsonLine.Points.Count - 1; i++)
{
AddEntityToLayer(jsonEntity.Layer, new Line(jsonLine.Points[i], jsonLine.Points[i + 1]));
}
if (jsonLine.Points.Count > 2)
{
AddEntityToLayer(jsonEntity.Layer, new Line(jsonLine.Points.Last(), jsonLine.Points.First()));
}
break;
default:
break;
}
}
break;
// TODO: handle other blocks?
}
}
}
drawing = new Drawing().Update(layers: layers);
viewPort = null; // auto-generate later
return(true);
}