//dont hit test, these are just overlay graphics
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
if (IsHitTestVisible)
return base.HitTestCore(hitTestParameters);
else
return null;
}
protected override GeometryHitTestResult HitTestCore
(GeometryHitTestParameters hitTestParameters)
{
var geometry = new RectangleGeometry(VisualTreeHelper.GetDescendantBounds(this));
return new GeometryHitTestResult
(this, geometry.FillContainsWithDetail(hitTestParameters.HitGeometry));
}
public List<DrawingVisual> GetVisuals(Geometry region)
{
hits.Clear();
GeometryHitTestParameters parameters = new GeometryHitTestParameters(region);
HitTestResultCallback callback = new HitTestResultCallback(this.HitTestCallback);
VisualTreeHelper.HitTest(this, null, callback, parameters);
return hits;
}
/// <summary>
/// HitTestCore
/// </summary>
protected override GeometryHitTestResult HitTestCore(
GeometryHitTestParameters hitTestParameters)
{
//
// HostVisual never reports itself as being hit. To change this
// behavior clients should derive from HostVisual and override
// HitTestCore methods.
//
return null;
}
/// <summary>
/// HitTestCore
/// </summary>
protected override GeometryHitTestResult HitTestCore(
GeometryHitTestParameters hitTestParameters)
{
//
// HostVisual never reports itself as being hit. To change this
// behavior clients should derive from HostVisual and override
// HitTestCore methods.
//
return(null);
}
/// <summary>
/// HitTestCore implements precise hit testing against render contents
/// </summary>
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
if (hitTestParameters == null)
{
throw new ArgumentNullException("hitTestParameters");
}
if ((_content != null) && GetHitTestBounds().IntersectsWith(hitTestParameters.Bounds))
{
IntersectionDetail intersectionDetail;
intersectionDetail = _content.HitTestGeometry(hitTestParameters.InternalHitGeometry);
Debug.Assert(intersectionDetail != IntersectionDetail.NotCalculated);
if (intersectionDetail != IntersectionDetail.Empty)
{
return(new GeometryHitTestResult(this, intersectionDetail));
}
}
return(null);
}
/// <summary>
/// HitTestCore implements precise hit testing against render contents
/// </summary>
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
if (hitTestParameters == null)
{
throw new ArgumentNullException("hitTestParameters");
}
if ((_content != null) && GetHitTestBounds().IntersectsWith(hitTestParameters.Bounds))
{
IntersectionDetail intersectionDetail;
intersectionDetail = _content.HitTestGeometry(hitTestParameters.InternalHitGeometry);
Debug.Assert(intersectionDetail != IntersectionDetail.NotCalculated);
if (intersectionDetail != IntersectionDetail.Empty)
{
return new GeometryHitTestResult(this, intersectionDetail);
}
}
return null;
}
internal HitTestResultBehavior HitTestGeometry(
HitTestFilterCallback filterCallback,
HitTestResultCallback resultCallback,
GeometryHitTestParameters geometryParams)
{
// we do not need parameter checks because they are done in HitTest()
Geometry clip = VisualClip;
if (clip != null)
{
// HitTest with a Geometry and a clip should hit test with
// the intersection of the geometry and the clip, not the entire geometry
IntersectionDetail intersectionDetail = clip.FillContainsWithDetail(geometryParams.InternalHitGeometry);
Debug.Assert(intersectionDetail != IntersectionDetail.NotCalculated);
if (intersectionDetail == IntersectionDetail.Empty)
{
// bail out if there is a clip and this region is not inside
return HitTestResultBehavior.Continue;
}
}
//
// Check if the geometry intersects with our hittest bounds.
// If not, the Visual is not hit-testable at all.
if (_bboxSubgraph.IntersectsWith(geometryParams.Bounds))
{
//
// Determine if there is a special filter behavior defined for this
// Visual.
//
HitTestFilterBehavior filter = HitTestFilterBehavior.Continue;
if (filterCallback != null)
{
filter = filterCallback(this);
if (filter == HitTestFilterBehavior.ContinueSkipSelfAndChildren)
{
return HitTestResultBehavior.Continue;
}
if (filter == HitTestFilterBehavior.Stop)
{
return HitTestResultBehavior.Stop;
}
}
//
// Hit-test against the children.
//
int childCount = VisualChildrenCount;
if (filter != HitTestFilterBehavior.ContinueSkipChildren)
{
for (int i=childCount-1; i>=0; i--)
{
Visual child = GetVisualChild(i);
if (child != null)
{
// Hit the scollClip bounds first, which are in the child's outer-space.
Rect? scrollClip = ScrollableAreaClipField.GetValue(child);
if (scrollClip.HasValue)
{
// Hit-testing with a Geometry and a clip should hit test with
// the intersection of the geometry and the clip, not the entire geometry
RectangleGeometry rectClip = new RectangleGeometry(scrollClip.Value);
IntersectionDetail intersectionDetail = rectClip.FillContainsWithDetail(geometryParams.InternalHitGeometry);
Debug.Assert(intersectionDetail != IntersectionDetail.NotCalculated);
if (intersectionDetail == IntersectionDetail.Empty)
{
// Skip child if there is a scrollable clip and this region is not inside it.
continue;
}
}
// Transform the geometry below offset and transform.
Matrix inv = Matrix.Identity;
inv.Translate(-child._offset.X, -child._offset.Y);
Transform childTransform = TransformField.GetValue(child);
if (childTransform != null)
{
Matrix m = childTransform.Value;
// If we can't invert the transform, the child is not hitable. This makes sense since
// the node's rendered content is degnerated, i.e. does not really take up any space.
// Skipping the child by continuing the loop.
if (!m.HasInverse)
{
continue;
}
// Inverse the transform.
m.Invert();
// Multiply the inverse and the offset together.
// inv = inv * m;
MatrixUtil.MultiplyMatrix(ref inv, ref m);
}
// Push the transform on the geometry params.
geometryParams.PushMatrix(ref inv);
// Hit-Test against the children.
HitTestResultBehavior result =
child.HitTestGeometry(filterCallback, resultCallback, geometryParams);
// Pop the transform from the geometry params.
geometryParams.PopMatrix();
// Process the result.
if (result == HitTestResultBehavior.Stop)
{
return HitTestResultBehavior.Stop;
}
}
}
}
//
// Hit-test against the content of the Visual.
//
if (filter != HitTestFilterBehavior.ContinueSkipSelf)
{
GeometryHitTestResult hitResult = HitTestCore(geometryParams);
if (hitResult != null)
{
Debug.Assert(resultCallback != null);
return resultCallback(hitResult);
}
}
}
return HitTestResultBehavior.Continue;
}
/// <summary>
/// Viewport3DVisual does not yet support Geometry hit testing.
/// </summary>
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
throw new NotSupportedException(SR.Get(SRID.HitTest_Invalid, typeof(GeometryHitTestParameters).Name, this.GetType().Name));
}
private uiItem GetVisual(double x, double y) {
int gs=LogramView.CellSize;
List<uiItem> objs=new List<uiItem>();
GeometryHitTestParameters parameters=new GeometryHitTestParameters(new RectangleGeometry(new Rect(x-gs/4, y-gs/4, gs/2, gs/2)));
VisualTreeHelper.HitTest(this, null, new HitTestResultCallback((hr) => {
var rez=(GeometryHitTestResult)hr;
var vis=hr.VisualHit as uiItem;
if(vis!=null) {
objs.Add(vis);
}
return HitTestResultBehavior.Continue;
}), parameters);
uiItem ret=null;
if(objs.Count>0) {
ret=objs.FirstOrDefault(z => z is uiPin);
if(ret==null) {
ret=objs.FirstOrDefault(z => z is uiWire);
if(ret==null) {
ret=objs.FirstOrDefault(z => z is SchemaElement);
}
}
}
return ret;
}
protected override void OnMouseUp(MouseButtonEventArgs e) {
int gs=LogramView.CellSize;
if(e.ChangedButton==MouseButton.Right && e.RightButton==MouseButtonState.Released) {
Topic cur;
TopicView tv;
if(_mSelected!=null) {
var cm=(this.Parent as Grid).ContextMenu;
cm.Items.Clear();
MenuItem mi=new MenuItem();
mi.Header="Copy";
mi.Click+=new RoutedEventHandler(mi_Copy);
cm.Items.Add(mi);
cm.IsOpen=true;
} else if(selected!=null && (cur=selected.GetModel())!=null && (tv=TopicView.root.Get(cur, true))!=null) {
var cm=(this.Parent as Grid).ContextMenu;
var actions=tv.GetActions();
cm.Items.Clear();
ItemCollection items;
for(int i=0; i<actions.Count; i++) {
switch(actions[i].action) {
case ItemAction.addToLogram:
case ItemAction.createBoolMask:
case ItemAction.createDoubleMask:
case ItemAction.createLongMask:
case ItemAction.createNodeMask:
case ItemAction.createStringMask:
case ItemAction.createByteArrMask:
case ItemAction.open:
continue;
}
items=cm.Items;
string[] lvls=actions[i].menuItem.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
for(int j=0; j<lvls.Length; j++) {
MenuItem mi = DataStorageView.FindMenuItem(items, lvls[j]);
if(mi==null) {
mi=new MenuItem();
mi.Header=lvls[j];
mi.DataContext=tv;
items.Add(mi);
}
if(j==lvls.Length-1) {
mi.Tag=actions[i];
mi.Click+=new RoutedEventHandler(mi_Click);
mi.ToolTip=actions[i].description;
}
items=mi.Items;
}
}
if(cur.valueType==typeof(PiStatement)) {
MenuItem mi=new MenuItem();
mi.Header="Copy";
mi.Click+=new RoutedEventHandler(mi_Copy);
cm.Items.Add(mi);
} else if(selected is uiPin) {
MenuItem mi=new MenuItem();
mi.Header="Trace";
mi.Click+=new RoutedEventHandler(mi_Trace);
cm.Items.Add(mi);
}
if(cm.Items.Count>0) {
cm.IsOpen=true;
}
} else if(Clipboard.ContainsText()) {
var cm=(this.Parent as Grid).ContextMenu;
cm.Items.Clear();
MenuItem mi=new MenuItem();
mi.Header="Paste";
mi.Click+=new RoutedEventHandler(mi_Paste);
cm.Items.Add(mi);
cm.IsOpen=true;
}
return;
} else if(e.ChangedButton==MouseButton.Left && e.LeftButton==MouseButtonState.Released) {
if(_mSelected!=null && _mSelected.Length>0) {
var cp=e.GetPosition(this);
double r=0, d=0;
foreach(var el in _mSelected.Where(z => !(z is uiTracer))) {
if(move) {
el.SetLocation(new Vector(el.OriginalLocation.X+(cp.X-ScreenStartPoint.X), el.OriginalLocation.Y+(cp.Y-ScreenStartPoint.Y)), true);
d=Math.Max(d, el.Offset.Y+el.ContentBounds.Bottom);
r=Math.Max(r, el.Offset.X+el.ContentBounds.Right);
}
el.Select(false);
}
_mSelected=null;
if(move) {
if(d+gs>this.Height) {
model.Get<long>("_height").value=1+(int)(d)/gs;
}
if(r+gs>this.Width) {
model.Get<long>("_width").value=1+(int)(r)/gs;
}
}
}
if(IsMouseCaptured) {
Cursor = Cursors.Arrow;
ReleaseMouseCapture();
} else if(selected!=null) {
SchemaElement el;
uiWire w;
var cp=e.GetPosition(this);
if((el=selected as SchemaElement)!=null && move) {
el.SetLocation(new Vector(el.OriginalLocation.X+(cp.X-ScreenStartPoint.X), el.OriginalLocation.Y+(cp.Y-ScreenStartPoint.Y)), true);
if(selected.Offset.Y+selected.ContentBounds.Bottom+gs>this.Height) {
model.Get<long>("_height").value=1+(int)(selected.Offset.Y+selected.ContentBounds.Bottom)/gs;
}
if(selected.Offset.X+selected.ContentBounds.Right+gs>this.Width) {
model.Get<long>("_width").value=1+(int)(selected.Offset.X+selected.ContentBounds.Right)/gs;
}
} else if((w=selected as uiWire)!=null && w.GetModel()==null) {
uiPin finish=GetVisual(cp.X, cp.Y) as uiPin;
if(finish!=null && finish!=w.A) {
w.SetFinish(finish);
} else {
this.DeleteVisual(w);
}
}
} else if(_multipleSelection) {
var cp=e.GetPosition(this);
_multipleSelection=false;
base.RemoveVisualChild(_mSelectVisual);
var objs=new List<SchemaElement>();
GeometryHitTestParameters parameters;
{
double l, t, w, h;
if(cp.X-ScreenStartPoint.X<0) {
l=cp.X;
w=ScreenStartPoint.X-cp.X;
} else {
l=ScreenStartPoint.X;
w=cp.X-ScreenStartPoint.X;
}
if(cp.Y-ScreenStartPoint.Y<0) {
t=cp.Y;
h=ScreenStartPoint.Y-cp.Y;
} else {
t=ScreenStartPoint.Y;
h=cp.Y-ScreenStartPoint.Y;
}
parameters=new GeometryHitTestParameters(new RectangleGeometry(new Rect(l, t, w, h)));
}
VisualTreeHelper.HitTest(this, null, new HitTestResultCallback((hr) => {
var rez=(GeometryHitTestResult)hr;
var vis=hr.VisualHit as SchemaElement;
if(vis!=null && rez.IntersectionDetail==IntersectionDetail.FullyInside) {
objs.Add(vis);
}
return HitTestResultBehavior.Continue;
}), parameters);
if(objs.Count>0) {
if(objs.Count==1) {
selected=objs[0];
} else {
_mSelected=objs.ToArray();
foreach(var el in _mSelected) {
el.Select(true);
}
}
}
} else {
base.OnMouseUp(e);
}
move=false;
} else {
base.OnMouseUp(e);
}
}
public List<DependencyObject> HitTest(Visual visual, IPoint point, double radius)
{
var elements = new List<DependencyObject>();
var elippse = new EllipseGeometry()
{
RadiusX = radius,
RadiusY = radius,
Center = new Point(point.X, point.Y),
};
var hitTestParams = new GeometryHitTestParameters(elippse);
var resultCallback = new HitTestResultCallback(result => HitTestResultBehavior.Continue);
var filterCallback = new HitTestFilterCallback(
element =>
{
elements.Add(element);
return HitTestFilterBehavior.Continue;
});
VisualTreeHelper.HitTest(visual, filterCallback, resultCallback, hitTestParams);
return elements;
}
public IEnumerable<IElement> HitTest(IRect rect)
{
var canvas = this;
var r = new Rect(new Point(rect.X1, rect.Y1), new Point(rect.X2, rect.Y2));
var selectedElements = new List<DependencyObject>();
var rectangle = new RectangleGeometry(r, 0.0, 0.0);
var hitTestParams = new GeometryHitTestParameters(rectangle);
var resultCallback = new HitTestResultCallback(result => HitTestResultBehavior.Continue);
var filterCallback = new HitTestFilterCallback(
element =>
{
if (VisualTreeHelper.GetParent(element) == canvas)
selectedElements.Add(element);
return HitTestFilterBehavior.Continue;
});
VisualTreeHelper.HitTest(canvas, filterCallback, resultCallback, hitTestParams);
return selectedElements.Cast<IElement>();
}
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters) {
return null;
}
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
GeometryHitTestResult r = base.HitTestCore(hitTestParameters);
if (r == null)
return r;
ContentControl control = r.VisualHit as ContentControl;
if (control == null)
return r;
System.Diagnostics.Trace.WriteLine(control.Name + " was hit");
return r;
}
/// <summary>
/// HitTestCore implements whether we have hit the bounds of this visual.
/// </summary>
protected virtual GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
if (hitTestParameters == null)
{
throw new ArgumentNullException("hitTestParameters");
}
IntersectionDetail intersectionDetail;
RectangleGeometry contentGeometry = new RectangleGeometry(GetHitTestBounds());
intersectionDetail = contentGeometry.FillContainsWithDetail(hitTestParameters.InternalHitGeometry);
Debug.Assert(intersectionDetail != IntersectionDetail.NotCalculated);
if (intersectionDetail != IntersectionDetail.Empty)
{
return new GeometryHitTestResult(this, intersectionDetail);
}
return null;
}
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
// Do something similar here, possibly checking every pixel within
// the hitTestParameters.HitGeometry.Bounds rectangle
return base.HitTestCore(hitTestParameters);
}
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
return default(GeometryHitTestResult);
}
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
return base.HitTestCore(hitTestParameters);
}
protected virtual GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters);
protected override GeometryHitTestResult HitTestCore( GeometryHitTestParameters hitTestParameters )
{
return IsHitTestVisible ? base.HitTestCore( hitTestParameters ) : null;
}
public IEnumerable<IElement> HitTest(IPoint point, double radius)
{
var canvas = this;
var selectedElements = new List<DependencyObject>();
var elippse = new EllipseGeometry() { RadiusX = radius, RadiusY = radius, Center = new Point(point.X, point.Y) };
var hitTestParams = new GeometryHitTestParameters(elippse);
var resultCallback = new HitTestResultCallback(result => HitTestResultBehavior.Continue);
var filterCallback = new HitTestFilterCallback(
element =>
{
if (VisualTreeHelper.GetParent(element) == canvas)
selectedElements.Add(element);
return HitTestFilterBehavior.Continue;
});
VisualTreeHelper.HitTest(canvas, filterCallback, resultCallback, hitTestParams);
return selectedElements.Cast<IElement>();
}
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
return new GeometryHitTestResult(this, IntersectionDetail.FullyContains);
}
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
return(default(GeometryHitTestResult));
}
protected virtual new GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
return(default(GeometryHitTestResult));
}
protected virtual new GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
return default(GeometryHitTestResult);
}
protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
throw new NotImplementedException();
}
protected virtual GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters)
{
throw new NotImplementedException();
}
