protected override void OnPreviewDragDrop(RadDropEventArgs e) { base.OnPreviewDragDrop(e); if (e.Handled || !(e.DragInstance is GanttGraphicalViewBaseTaskElement)) { return; } GanttGraphicalViewBaseItemElement hitTarget = e.HitTarget as GanttGraphicalViewBaseItemElement; if (hitTarget == null) { return; } DateTime dateTime = this.Owner.GraphicalViewElement.TimelineBehavior.AdjustedTimelineStart.AddSeconds((double)(this.Owner.GraphicalViewElement.HorizontalScrollBarElement.Value + e.DropLocation.X - this.xOutlineFormOffset) * this.Owner.GraphicalViewElement.OnePixelTime.TotalSeconds); if (dateTime == hitTarget.Data.Start) { return; } TimeSpan timeSpan = hitTarget.Data.End - hitTarget.Data.Start; hitTarget.Data.Start = dateTime; hitTarget.Data.End = dateTime + timeSpan; hitTarget.GraphicalViewElement.CalculateLinkLines(hitTarget.Data); }
public virtual bool CanBeResized() { GanttGraphicalViewBaseItemElement parent = this.Parent as GanttGraphicalViewBaseItemElement; if (!parent.Data.ReadOnly) { return(!parent.Data.GanttViewElement.ReadOnly); } return(false); }
protected override bool CanDragCore(Point dragStartPoint) { if (this.ElementState != ElementState.Loaded) { return(false); } GanttGraphicalViewBaseItemElement parent = this.Parent as GanttGraphicalViewBaseItemElement; if (!parent.Data.ReadOnly) { return(!parent.Data.GanttViewElement.ReadOnly); } return(false); }
private void SetEndItemVisibility(ElementVisibility visibility) { if (this.GanttViewElement == null) { return; } GanttGraphicalViewBaseItemElement element = this.GanttViewElement.GraphicalViewElement.GetElement(this.EndItem) as GanttGraphicalViewBaseItemElement; if (element == null) { return; } if (this.LinkType == TasksLinkType.FinishToStart || this.LinkType == TasksLinkType.StartToStart) { element.LeftLinkHandleElement.Visibility = visibility; element.RightLinkHandleElement.Visibility = ElementVisibility.Hidden; } else { element.RightLinkHandleElement.Visibility = visibility; element.LeftLinkHandleElement.Visibility = ElementVisibility.Hidden; } }
public GanttViewItemPaintEventArgs(GanttGraphicalViewBaseItemElement element, Graphics graphics) { this.element = element; this.graphics = graphics; }