public void InsertAfterRemoving()
{
// arrange
var layerCollection = new LayerCollection();
var layer1 = new MemoryLayer()
{
Name = "Layer1"
};
var layer2 = new MemoryLayer()
{
Name = "Layer2"
};
var layer3 = new MemoryLayer()
{
Name = "Layer3"
};
layerCollection.Add(layer1);
layerCollection.Add(layer2);
layerCollection.Remove(layer1);
// act
layerCollection.Insert(1, layer3);
// assert
var list = layerCollection.ToList();
Assert.AreEqual(2, list.Count());
Assert.NotNull(list[0]);
Assert.AreEqual("Layer2", list[0].Name);
Assert.NotNull(list[1]);
Assert.AreEqual("Layer3", list[1].Name);
}
public void InsertWithNormalConditions()
{
// arrange
var layerCollection = new LayerCollection();
var layer1 = new MemoryLayer()
{
Name = "Layer1"
};
var layer2 = new MemoryLayer()
{
Name = "Layer2"
};
var layer3 = new MemoryLayer()
{
Name = "Layer3"
};
layerCollection.Add(layer1);
layerCollection.Add(layer2);
// act
layerCollection.Insert(1, layer3);
// assert
var list = layerCollection.ToList();
Assert.AreEqual(3, list.Count());
Assert.NotNull(list[0]);
Assert.AreEqual("Layer1", list[0].Name);
Assert.NotNull(list[1]);
Assert.AreEqual("Layer3", list[1].Name);
Assert.NotNull(list[2]);
Assert.AreEqual("Layer2", list[2].Name);
}
public void InsertLayer(ILayer layer, int index)
{
Layers.Insert(index, layer);
layerCollection.Insert(index + 1, layer);
OnLayersChanged(EventArgs.Empty);
}
public void AddLayer(ILayer layer, bool init = true)
{
if (init)
{
Layers.Add(layer);
layerCollection.Add(layer);
}
else
{
// todo: refactor code, remove hardcoded ints
// 3 is number of standard layers (hexagons, land, alerts)
// layers determinines the order in the TOC
if (Layers.Count == 1)
{
Layers.Add(layer);
}
else
{
Layers.Insert(1, layer);
}
// layercollection is the order in drawing, draw always above the baselayers
layerCollection.Insert(2, layer);
}
OnLayersChanged(EventArgs.Empty);
}
/// <summary>
/// Inserts the xMapServer base layers, i.e. the background layers for areas like forests, rivers, population areas, et al,
/// and their corresponding labels.
/// </summary>
/// <param name="layers">The LayerCollection instance, used as an extension. </param>
/// <param name="meta">Meta information for xMapServer, further details can be seen in the <see cref="XMapMetaInfo"/> description. </param>
public static void InsertXMapBaseLayers(this LayerCollection layers, XMapMetaInfo meta)
{
var baseLayer = new TiledLayer(BackgroundLayerName)
{
TiledProvider = new XMapTiledProvider(meta.Url, meta.User, meta.Password, XMapMode.Background),
Copyright = meta.CopyrightText,
Caption = MapLocalizer.GetString(MapStringId.Background),
IsBaseMapLayer = true,
Icon = ResourceHelper.LoadBitmapFromResource("Ptv.XServer.Controls.Map;component/Resources/Background.png")
};
if (BaseLayerSuccessor != null && layers[BaseLayerSuccessor] != null)
{
layers.Insert(layers.IndexOf(layers[BaseLayerSuccessor]), baseLayer);
}
else
{
// add tile layer
layers.Add(baseLayer);
BaseLayerSuccessor = null;
}
// don't add overlay layer for Decarta-powered maps (basemap is completely rendered on tiles)
if (XServerUrl.IsDecartaBackend(meta.Url))
{
return;
}
var labelLayer = new UntiledLayer(LabelsLayerName)
{
UntiledProvider = new XMapTiledProvider(meta.Url, meta.User, meta.Password, XMapMode.Town),
MaxRequestSize = meta.MaxRequestSize,
Caption = MapLocalizer.GetString(MapStringId.Labels),
Icon = ResourceHelper.LoadBitmapFromResource("Ptv.XServer.Controls.Map;component/Resources/Labels.png")
};
if (LabelLayerPredecessor != null && layers[LabelLayerPredecessor] != null && layers.IndexOf(layers[LabelLayerPredecessor]) < layers.Count)
{
layers.Insert(layers.IndexOf(layers[LabelLayerPredecessor]) + 1, labelLayer);
}
else
{
// add label layer
layers.Add(labelLayer);
LabelLayerPredecessor = null;
}
}
public void PromoteLayer(LayerCollection owningCollection, int position)
{
// Skip if the layer can't be moved up because it is already at the top.
if (position < 1)
{
return;
}
// Move the layer by removing it from its current position and adding it at the next lower position.
Layer selectedLayer = owningCollection[position];
owningCollection.RemoveAt(position);
owningCollection.Insert(position - 1, selectedLayer);
}
public void DemoteLayer(LayerCollection owningCollection, int position)
{
// Skip if the layer can't be moved because its already at the bottom.
if (position == owningCollection.Count - 1)
{
return;
}
// Move the layer by removing it from its current position and inserting it at the next higher position.
Layer selectedLayer = owningCollection[position];
owningCollection.RemoveAt(position);
owningCollection.Insert(position + 1, selectedLayer);
}
public override void MoveRow(UITableView tableView, NSIndexPath sourceIndexPath, NSIndexPath destinationIndexPath)
{
// Find the source and destination lists (based on the section of the source and destination index).
LayerCollection source = sourceIndexPath.Section == 0 ? IncludedLayers : ExcludedLayers;
LayerCollection destination = destinationIndexPath.Section == 0 ? IncludedLayers : ExcludedLayers;
// Find the layer that is being moved.
Layer movedLayer = source[sourceIndexPath.Row];
// Remove the layer from the source list and insert into the destination list.
source.RemoveAt(sourceIndexPath.Row);
destination.Insert(destinationIndexPath.Row, movedLayer);
// Reload the table now that the data has changed.
tableView.ReloadData();
}
public void PromoteLayer(Layer selectedLayer)
{
// Find the collection the layer is in.
LayerCollection owningCollection = IncludedLayers.Contains(selectedLayer) ? IncludedLayers : ExcludedLayers;
// Get the current index (position) of the layer.
int layerIndex = owningCollection.IndexOf(selectedLayer);
// Skip if the layer can't be moved because it is already at the top.
if (layerIndex < 1)
{
return;
}
// Move the layer by removing it and re-adding it at its old position minus 1.
owningCollection.Remove(selectedLayer);
owningCollection.Insert(layerIndex - 1, selectedLayer);
}
private void ListBoxItem_OnDrop(object sender, DragEventArgs e)
{
// This method is called when the user finishes dragging while over the listbox.
// Find the source and destination list boxes.
ListBox sourceBox = FindParentListBox(_originatingListBoxItem);
if (sourceBox == null)
{
// Return if the source isn't valid - happens when duplicate events are raised.
return;
}
// Find the list box that the item was dropped on (i.e. dragged to).
ListBox destinationBox = FindParentListBox((UIElement)sender);
// Get the data that is being dropped.
Layer draggedData = (Layer)e.Data.GetData(typeof(ArcGISMapImageLayer));
// Find where in the respective lists the items are.
int indexOfRemoved = sourceBox.Items.IndexOf(draggedData);
int indexOfInsertion;
// Sender is the control that the item is being dropped on. Could be a listbox or a listbox item.
if (sender is ListBoxItem)
{
// Find the layer that the item represents.
Layer targetData = ((ListBoxItem)sender).DataContext as Layer;
// Find the position of the layer in the listbox.
indexOfInsertion = destinationBox.Items.IndexOf(targetData);
}
else if (destinationBox != sourceBox)
{
// Drop the item at the end of the list if the user let go of the item on the empty space in the box rather than the list item.
// This works because both the listbox and its individual listbox items participate in drag and drop.
indexOfInsertion = destinationBox.Items.Count - 1;
}
else
{
return;
}
// Find the appropriate source and destination boxes.
LayerCollection sourceList = sourceBox == IncludedListBox ? _viewModel.IncludedLayers : _viewModel.ExcludedLayers;
LayerCollection destinationList = destinationBox == IncludedListBox ? _viewModel.IncludedLayers : _viewModel.ExcludedLayers;
// Return if there is nothing to do.
if (sourceList == destinationList && indexOfRemoved == indexOfInsertion)
{
return;
}
if (sourceBox == destinationBox && indexOfRemoved < indexOfInsertion)
{
indexOfInsertion -= 1;
}
// Perform the move.
sourceList.RemoveAt(indexOfRemoved);
destinationList.Insert(indexOfInsertion + 1, draggedData);
}
public static LayerCollection InsertLayer(this LayerCollection self, int index, ILayer layer)
{
self.Insert(index, layer);
return(self);
}
