private PlacementOperation(DesignItem[] items, PlacementType type)
{
PlacementInformation[] information = new PlacementInformation[items.Length];
for (int i = 0; i < information.Length; i++) {
information[i] = new PlacementInformation(items[i], this);
}
this.placedItems = new ReadOnlyCollection<PlacementInformation>(information);
this.type = type;
this.currentContainer = items[0].Parent;
this.currentContainerBehavior = GetPlacementBehavior(items);
this.changeGroup = items[0].Context.OpenGroup(type.ToString(), items);
}
public virtual bool CanPlaceItem(PlacementInformation info)
{
return true;
}
public virtual void SetPosition(PlacementInformation info)
{
if (info.Operation.Type != PlacementType.Move && info.Operation.Type != PlacementType.MovePoint)
ModelTools.Resize(info.Item, info.Bounds.Width, info.Bounds.Height);
//if (info.Operation.Type == PlacementType.MovePoint)
// ModelTools.Resize(info.Item, info.Bounds.Width, info.Bounds.Height);
}
public override void SetPosition(PlacementInformation info)
{
base.SetPosition(info);
info.Item.Properties[FrameworkElement.MarginProperty].Reset();
UIElement child = info.Item.View;
Rect newPosition = info.Bounds;
if (IsPropertySet(child, Canvas.LeftProperty) || !IsPropertySet(child, Canvas.RightProperty)) {
if (newPosition.Left != GetCanvasProperty(child, Canvas.LeftProperty)) {
info.Item.Properties.GetAttachedProperty(Canvas.LeftProperty).SetValue(newPosition.Left);
}
} else {
var newR = extendedComponent.ActualWidth - newPosition.Right;
if (newR != GetCanvasProperty(child, Canvas.RightProperty))
info.Item.Properties.GetAttachedProperty(Canvas.RightProperty).SetValue(newR);
}
if (IsPropertySet(child, Canvas.TopProperty) || !IsPropertySet(child, Canvas.BottomProperty)) {
if (newPosition.Top != GetCanvasProperty(child, Canvas.TopProperty)) {
info.Item.Properties.GetAttachedProperty(Canvas.TopProperty).SetValue(newPosition.Top);
}
} else {
var newB = extendedComponent.ActualHeight - newPosition.Bottom;
if (newB != GetCanvasProperty(child, Canvas.BottomProperty))
info.Item.Properties.GetAttachedProperty(Canvas.BottomProperty).SetValue(newB);
}
if (info.Item == Services.Selection.PrimarySelection)
{
var b = new Rect(0, 0, extendedView.ActualWidth, extendedView.ActualHeight);
// only for primary selection:
if (grayOut != null)
{
grayOut.AnimateActiveAreaRectTo(b);
}
else
{
GrayOutDesignerExceptActiveArea.Start(ref grayOut, this.Services, this.ExtendedItem.View, b);
}
}
}
public override void SetPosition(PlacementInformation info)
{
base.SetPosition(info);
int leftColumnIndex = GetColumnIndex(info.Bounds.Left);
int rightColumnIndex = GetEndColumnIndex(info.Bounds.Right);
if (rightColumnIndex < leftColumnIndex) rightColumnIndex = leftColumnIndex;
SetColumn(info.Item, leftColumnIndex, rightColumnIndex - leftColumnIndex + 1);
int topRowIndex = GetRowIndex(info.Bounds.Top);
int bottomRowIndex = GetEndRowIndex(info.Bounds.Bottom);
if (bottomRowIndex < topRowIndex) bottomRowIndex = topRowIndex;
SetRow(info.Item, topRowIndex, bottomRowIndex - topRowIndex + 1);
Rect availableSpaceRect = new Rect(
new Point(GetColumnOffset(leftColumnIndex), GetRowOffset(topRowIndex)),
new Point(GetColumnOffset(rightColumnIndex + 1), GetRowOffset(bottomRowIndex + 1))
);
if (info.Item == Services.Selection.PrimarySelection) {
// only for primary selection:
if (grayOut != null) {
grayOut.AnimateActiveAreaRectTo(availableSpaceRect);
} else {
GrayOutDesignerExceptActiveArea.Start(ref grayOut, this.Services, this.ExtendedItem.View, availableSpaceRect);
}
}
HorizontalAlignment ha = (HorizontalAlignment)info.Item.Properties[FrameworkElement.HorizontalAlignmentProperty].ValueOnInstance;
VerticalAlignment va = (VerticalAlignment)info.Item.Properties[FrameworkElement.VerticalAlignmentProperty].ValueOnInstance;
if(enteredIntoNewContainer){
ha = SuggestHorizontalAlignment(info.Bounds, availableSpaceRect);
va = SuggestVerticalAlignment(info.Bounds, availableSpaceRect);
}
info.Item.Properties[FrameworkElement.HorizontalAlignmentProperty].SetValue(ha);
info.Item.Properties[FrameworkElement.VerticalAlignmentProperty].SetValue(va);
Thickness margin = new Thickness(0, 0, 0, 0);
if (ha == HorizontalAlignment.Left || ha == HorizontalAlignment.Stretch)
margin.Left = info.Bounds.Left - GetColumnOffset(leftColumnIndex);
if (va == VerticalAlignment.Top || va == VerticalAlignment.Stretch)
margin.Top = info.Bounds.Top - GetRowOffset(topRowIndex);
if (ha == HorizontalAlignment.Right || ha == HorizontalAlignment.Stretch)
margin.Right = GetColumnOffset(rightColumnIndex + 1) - info.Bounds.Right;
if (va == VerticalAlignment.Bottom || va == VerticalAlignment.Stretch)
margin.Bottom = GetRowOffset(bottomRowIndex + 1) - info.Bounds.Bottom;
info.Item.Properties[FrameworkElement.MarginProperty].SetValue(margin);
if (ha == HorizontalAlignment.Stretch)
info.Item.Properties[FrameworkElement.WidthProperty].Reset();
//else
// info.Item.Properties[FrameworkElement.WidthProperty].SetValue(info.Bounds.Width);
if (va == VerticalAlignment.Stretch)
info.Item.Properties[FrameworkElement.HeightProperty].Reset();
//else
// info.Item.Properties[FrameworkElement.HeightProperty].SetValue(info.Bounds.Height);
}
public override void SetPosition(PlacementInformation info)
{
base.SetPosition(info);
var resizeExtensions = info.Item.Extensions.OfType<ResizeThumbExtension>();
if (resizeExtensions != null && resizeExtensions.Count() != 0) {
var resizeExtension = resizeExtensions.First();
_isItemGettingResized = resizeExtension.IsResizing;
}
if (_stackPanel != null && !_isItemGettingResized) {
if (_stackPanel.Orientation == Orientation.Vertical) {
var offset = FindHorizontalRectanglePlacementOffset(info.Bounds);
DrawHorizontalRectangle(offset);
} else {
var offset = FindVerticalRectanglePlacementOffset(info.Bounds);
DrawVerticalRectangle(offset);
}
ChangePositionTo(info.Item, _indexToInsert);
}
}
