public TextSelectionOverlay(TextEditingValue value = null,
BuildContext context = null, Widget debugRequiredFor = null,
LayerLink layerLink = null,
RenderEditable renderObject = null,
TextSelectionControls selectionControls = null,
TextSelectionDelegate selectionDelegate = null,
DragStartBehavior dragStartBehavior = DragStartBehavior.start)
{
D.assert(value != null);
D.assert(context != null);
this.context = context;
this.debugRequiredFor = debugRequiredFor;
this.layerLink = layerLink;
this.renderObject = renderObject;
this.selectionControls = selectionControls;
this.selectionDelegate = selectionDelegate;
this._value = value;
OverlayState overlay = Overlay.of(context);
D.assert(overlay != null, () => $"No Overlay widget exists above {context}.\n" +
"Usually the Navigator created by WidgetsApp provides the overlay. Perhaps your " +
"app content was created above the Navigator with the WidgetsApp builder parameter.");
this._toolbarController = new AnimationController(duration: fadeDuration, vsync: overlay);
this.dragStartBehavior = dragStartBehavior;
}
public ActionResult CreateNode([Bind] CreateNode Node, int InstanceID)
{
if (ModelState.IsValid)
{
//make sure the layer exists in this instance.
var Layer = db.Layers.DefaultIfEmpty(null).FirstOrDefault(x => x.InstanceID == Node.InstanceID && x.LayerID == Node.LayerID);
if (Layer == null)
{
ModelState.AddModelError("Layer", "Unable to find Layer.");
return(Json(new { error = Generic.GetValidationErrors(ModelState) }));
}
//
Node node = new Node(Node);
db.Nodes.Add(node);
node.Links = new List <Link>();
db.SaveChanges();
Link Link = null;
//create a link if needed.
if (Node.ParentNodeID != null)
{
CreateLink l = new CreateLink
{
OriginID = (int)Node.ParentNodeID,
TargetID = node.NodeID,
Type = "Parent"
};
Link = new Link(l);
db.Links.Add(Link);
db.SaveChanges();
}
if (Node.SiblingNodeID != null)
{
CreateLink l = new CreateLink
{
OriginID = (int)Node.ParentNodeID,
TargetID = node.NodeID,
Type = "Sibling"
};
Link = new Link(l);
db.Links.Add(Link);
//node.Links.Add(l);
db.SaveChanges();
}
//link to the layer.
var layerLink = new LayerLink(new CreateLayerLink {
NodeID = node.NodeID, LayerID = Node.LayerID
});
db.LayerLinks.Add(layerLink);
db.SaveChanges();
return(Json(new { node = node, layerlink = new JsonLayerLink(layerLink), link = Link }));
}
return(Json(new { error = Generic.GetValidationErrors(ModelState) }));
}
public ActionResult AssignLayer(int[] NodeID, int LayerID, int InstanceID)
{
//first find the node and the layer in the same instance.
if (NodeID.Length == 0)
{
return(Json(new { success = true }));
}
//now remove any that aren't in the appropriate instance.
bool found = db.Layers.Any(x => x.LayerID == LayerID && x.InstanceID == InstanceID);
if (!found)
{
ModelState.AddModelError("Layer", "Invalid Layer.");
}
List <int> Nodes = new List <int>();
foreach (var x in NodeID)
{
var thisNode = db.Nodes.DefaultIfEmpty(null).FirstOrDefault(y => y.NodeID == x && y.InstanceID == InstanceID && y.Active);
if (thisNode != null)
{
Nodes.Add(x);
}
}
if (Nodes.Count() == 0)
{
ModelState.AddModelError("Nodes", "No Nodes Found.");
}
if (!ModelState.IsValid)
{
return(Json(new { error = Generic.GetValidationErrors(ModelState) }));
}
foreach (var i in Nodes)
{
var thisLink = new LayerLink(new CreateLayerLink {
LayerID = LayerID, NodeID = i
});
if (thisLink.LayerLinkID != 0)
{
var link = db.LayerLinks.Find(thisLink.LayerLinkID);
link = thisLink;
}
else
{
db.LayerLinks.Add(thisLink);
}
}
db.SaveChanges();
return(Json(new { success = true }));
}
internal _TextSelectionHandleOverlay(
Key key = null,
TextSelection selection = null,
_TextSelectionHandlePosition position = _TextSelectionHandlePosition.start,
LayerLink layerLink = null,
RenderEditable renderObject = null,
ValueChanged <TextSelection> onSelectionHandleChanged = null,
VoidCallback onSelectionHandleTapped = null,
TextSelectionControls selectionControls = null
) : base(key: key)
{
this.selection = selection;
this.position = position;
this.layerLink = layerLink;
this.renderObject = renderObject;
this.onSelectionHandleChanged = onSelectionHandleChanged;
this.onSelectionHandleTapped = onSelectionHandleTapped;
this.selectionControls = selectionControls;
}
public ActionResult CreatePath([Bind] CreateLayer c, int InstanceID)
{
if (!ModelState.IsValid)
{
return(Json(new { error = Generic.GetValidationErrors(ModelState) }));
}
var layer = new Layer(c);
db.Layers.Add(layer);
db.SaveChanges();
//crate layer links, if appropriate.
List <LayerLink> LayerLinks = new List <LayerLink>();
if (c.Nodes != null)
{
foreach (var x in c.Nodes)
{
var node = db.Nodes.DefaultIfEmpty(null).FirstOrDefault(y => y.NodeID == x && y.InstanceID == InstanceID);
if (node == null)
{
continue;
}
var thisLink = new LayerLink(new CreateLayerLink {
LayerID = layer.LayerID, NodeID = x
});
LayerLinks.Add(thisLink);
}
db.LayerLinks.AddRange(LayerLinks);
db.SaveChanges();
}
var jsonLinks = new List <JsonLayerLink>();
foreach (var l in LayerLinks)
{
jsonLinks.Add(new JsonLayerLink(l));
}
return(Json(new
{
layer = new JsonLayer(layer),
layerLinks = jsonLinks
}));
}
public TextSelectionOverlay(TextEditingValue value = null,
BuildContext context = null, Widget debugRequiredFor = null,
LayerLink layerLink = null,
RenderEditable renderObject = null,
TextSelectionControls selectionControls = null,
TextSelectionDelegate selectionDelegate = null)
{
D.assert(value != null);
D.assert(context != null);
this.context = context;
this.debugRequiredFor = debugRequiredFor;
this.layerLink = layerLink;
this.renderObject = renderObject;
this.selectionControls = selectionControls;
this.selectionDelegate = selectionDelegate;
this._value = value;
OverlayState overlay = Overlay.of(context);
D.assert(overlay != null);
this._handleController = new AnimationController(duration: _fadeDuration, vsync: overlay);
this._toolbarController = new AnimationController(duration: _fadeDuration, vsync: overlay);
}
internal _TextSelectionHandleOverlay(
Key key = null,
TextSelection selection = null,
_TextSelectionHandlePosition position = _TextSelectionHandlePosition.start,
LayerLink startHandleLayerLink = null,
LayerLink endHandleLayerLink = null,
RenderEditable renderObject = null,
ValueChanged <TextSelection> onSelectionHandleChanged = null,
VoidCallback onSelectionHandleTapped = null,
TextSelectionControls selectionControls = null,
DragStartBehavior dragStartBehavior = DragStartBehavior.start
) : base(key: key)
{
this.selection = selection;
this.position = position;
this.startHandleLayerLink = startHandleLayerLink;
this.endHandleLayerLink = endHandleLayerLink;
this.renderObject = renderObject;
this.onSelectionHandleChanged = onSelectionHandleChanged;
this.onSelectionHandleTapped = onSelectionHandleTapped;
this.selectionControls = selectionControls;
this.dragStartBehavior = dragStartBehavior;
}
public TextSelectionOverlay(
TextEditingValue value = null,
BuildContext context = null,
Widget debugRequiredFor = null,
LayerLink toolbarLayerLink = null,
LayerLink startHandleLayerLink = null,
LayerLink endHandleLayerLink = null,
RenderEditable renderObject = null,
TextSelectionControls selectionControls = null,
bool?handlesVisible = false,
TextSelectionDelegate selectionDelegate = null,
DragStartBehavior dragStartBehavior = DragStartBehavior.start,
VoidCallback onSelectionHandleTapped = null)
{
D.assert(value != null);
D.assert(context != null);
D.assert(handlesVisible != null);
_handlesVisible = handlesVisible.Value;
this.context = context;
this.debugRequiredFor = debugRequiredFor;
this.toolbarLayerLink = toolbarLayerLink;
this.startHandleLayerLink = startHandleLayerLink;
this.endHandleLayerLink = endHandleLayerLink;
this.renderObject = renderObject;
this.selectionControls = selectionControls;
this.selectionDelegate = selectionDelegate;
this.onSelectionHandleTapped = onSelectionHandleTapped;
_value = value;
OverlayState overlay = Overlay.of(context, rootOverlay: true);
D.assert(overlay != null, () => $"No Overlay widget exists above {context}.\n" +
"Usually the Navigator created by WidgetsApp provides the overlay. Perhaps your " +
"app content was created above the Navigator with the WidgetsApp builder parameter.");
_toolbarController = new AnimationController(duration: fadeDuration, vsync: overlay);
this.dragStartBehavior = dragStartBehavior;
}
public override Widget build(BuildContext context)
{
LayerLink layerLink = null;
TextSelectionHandleType type = TextSelectionHandleType.left;
switch (widget.position)
{
case _TextSelectionHandlePosition.start:
layerLink = widget.startHandleLayerLink;
type = _chooseType(
widget.renderObject.textDirection,
TextSelectionHandleType.left,
TextSelectionHandleType.right
);
break;
case _TextSelectionHandlePosition.end:
D.assert(!widget.selection.isCollapsed);
layerLink = widget.endHandleLayerLink;
type = _chooseType(
widget.renderObject.textDirection,
TextSelectionHandleType.right,
TextSelectionHandleType.left
);
break;
}
Offset handleAnchor = widget.selectionControls.getHandleAnchor(
type,
widget.renderObject.preferredLineHeight
);
Size handleSize = widget.selectionControls.getHandleSize(
widget.renderObject.preferredLineHeight
);
Rect handleRect = Rect.fromLTWH(
-handleAnchor.dx,
-handleAnchor.dy,
handleSize.width,
handleSize.height
);
Rect interactiveRect = handleRect.expandToInclude(
Rect.fromCircle(center: handleRect.center, radius: kMinInteractiveDimension / 2)
);
RelativeRect padding = RelativeRect.fromLTRB(
Mathf.Max((interactiveRect.width - handleRect.width) / 2, 0),
Mathf.Max((interactiveRect.height - handleRect.height) / 2, 0),
Mathf.Max((interactiveRect.width - handleRect.width) / 2, 0),
Mathf.Max((interactiveRect.height - handleRect.height) / 2, 0)
);
return(new CompositedTransformFollower(
link: layerLink,
offset: interactiveRect.topLeft,
showWhenUnlinked: false,
child: new FadeTransition(
opacity: _opacity,
child: new Container(
alignment: Alignment.topLeft,
width: interactiveRect.width,
height: interactiveRect.height,
child: new GestureDetector(
behavior: HitTestBehavior.translucent,
dragStartBehavior: widget.dragStartBehavior,
onPanStart: _handleDragStart,
onPanUpdate: _handleDragUpdate,
onTap: _handleTap,
child: new Padding(
padding: EdgeInsets.only(
left: padding.left,
top: padding.top,
right: padding.right,
bottom: padding.bottom
),
child: widget.selectionControls.buildHandle(context, type,
widget.renderObject.preferredLineHeight)
)
)
)
)
));
}
public AnchoredTag(Point point, LayerLink link, Tag tag) : base(point, link)
{
Tag = tag;
Tag.AddLayer(link.Layer);
}
