public static void RemoveHandles(this UIElement element)
{
if (element == null || element.GetType() == typeof(ResizeHandle))
{
return;
}
Guid elementId = element.GetElementId();
SectionCanvas canvas = element.FindParentControlBase(typeof(SectionCanvas)) as SectionCanvas;
foreach (ResizeHandlesEnum item in Enum.GetValues(typeof(ResizeHandlesEnum)))
{
KeyValuePair <Guid, ResizeHandlesEnum> key = new KeyValuePair <Guid, ResizeHandlesEnum>(elementId, item);
if (!elementHandles.ContainsKey(key))
{
continue;
}
canvas.Children.Remove(elementHandles[key]);
elementHandles.Remove(key);
}
}
public static void MoveObjects(double canvasWidth,
double canvasHeight,
double elementLeft,
double elementWidth,
double elementTop,
double elementHeigth,
double offsetLeft,
double offsetTop
)
{
ResizeHandles.MoveObject(canvasWidth, canvasHeight, elementLeft, elementWidth, elementTop, elementHeigth);
ResizeHandles.SelectedElement.MoveHandles();
Guid elementId = SelectedElement.GetElementId();
foreach (UIElement item in canvaselements.Values)
{
if (elementId == item.GetElementId())
{
continue;
}
SectionCanvas itemCanvas = item.FindParentControlBase(typeof(SectionCanvas)) as SectionCanvas;
double canvasItemWidth = ResizeHandles.SelectedElement.GetPropertyValue("ActualWidth").ToDouble();
double canvasItemHeigth = ResizeHandles.SelectedElement.GetPropertyValue("ActualHeight").ToDouble();
double canvasItemLeft = Canvas.GetLeft(item) + offsetLeft;
double canvasItemTop = Canvas.GetTop(item) + offsetTop;
if (canvasItemLeft <= 0 ||
canvasItemTop <= 0 ||
(canvasItemLeft + canvasItemWidth) > itemCanvas.ActualWidth ||
(canvasItemTop + canvasItemHeigth) > itemCanvas.ActualHeight)
{
continue;
}
Canvas.SetLeft(item, canvasItemLeft);
Canvas.SetTop(item, canvasItemTop);
item.MoveHandles();
}
}
public static void NotchDown(double distance)
{
foreach (UIElement item in canvaselements.Values)
{
double notchPlacement = Canvas.GetTop(item) + distance;
SectionCanvas parent = item.FindParentControlBase(typeof(SectionCanvas)) as SectionCanvas;
double itemHeight = item.GetPropertyValue("ActualHeight").ToDouble();
if ((notchPlacement + itemHeight) > parent.ActualHeight)
{
notchPlacement = parent.ActualHeight - itemHeight;
}
Canvas.SetTop(item, notchPlacement);
item.MoveHandles();
}
}
public static void ShowHandles(this UIElement element, SectionCanvas canvas)
{
if (element.GetType() == typeof(ResizeHandle))
{
return;
}
Guid elementId = element.GetElementId();
if (HaveHandles(elementId))
{
return;
}
canvaselements.Add(elementId, element);
CreateHandles(elementId);
SetBounds(element);
foreach (KeyValuePair <KeyValuePair <Guid, ResizeHandlesEnum>, ResizeHandle> hanle in elementHandles
.Where(k => k.Key.Key == elementId &&
k.Key.Value != ResizeHandlesEnum.None))
{
switch (hanle.Key.Value)
{
case ResizeHandlesEnum.LeftBottom:
Canvas.SetTop(hanle.Value, bottom);
Canvas.SetLeft(hanle.Value, left);
break;
case ResizeHandlesEnum.LetfTop:
Canvas.SetTop(hanle.Value, top);
Canvas.SetLeft(hanle.Value, left);
break;
case ResizeHandlesEnum.RightBottom:
Canvas.SetTop(hanle.Value, bottom);
Canvas.SetLeft(hanle.Value, right);
break;
case ResizeHandlesEnum.RightTop:
Canvas.SetTop(hanle.Value, top);
Canvas.SetLeft(hanle.Value, right);
break;
}
canvas.Children.Add(hanle.Value);
}
}
