private void DragBottom(double scale, DesignItem item, SelectionService selectionService)
{
IEnumerable<DesignItem> groupItems = selectionService.GetGroupMembers(item).Cast<DesignItem>();
double groupTop = Canvas.GetTop(item);
foreach (DesignItem groupItem in groupItems)
{
double groupItemTop = Canvas.GetTop(groupItem);
double delta = (groupItemTop - groupTop) * (scale - 1);
Canvas.SetTop(groupItem, groupItemTop + delta);
groupItem.Height = groupItem.ActualHeight * scale;
}
}
private void DragLeft(double scale, DesignItem item, SelectionService selectionService)
{
IEnumerable<DesignItem> groupItems = selectionService.GetGroupMembers(item).Cast<DesignItem>();
double groupLeft = Canvas.GetLeft(item) + item.Width;
foreach (DesignItem groupItem in groupItems)
{
double groupItemLeft = Canvas.GetLeft(groupItem);
double delta = (groupLeft - groupItemLeft) * (scale - 1);
Canvas.SetLeft(groupItem, groupItemLeft - delta);
groupItem.Width = groupItem.ActualWidth * scale;
}
}
private static DesignItem DeserializeDesignItem(XElement itemXML, Guid id, double OffsetX, double OffsetY)
{
DesignItem item = new DesignItem(id);
item.Width = Double.Parse(itemXML.Element("Width").Value, CultureInfo.InvariantCulture);
item.Height = Double.Parse(itemXML.Element("Height").Value, CultureInfo.InvariantCulture);
item.ParentID = new Guid(itemXML.Element("ParentID").Value);
item.IsGroup = Boolean.Parse(itemXML.Element("IsGroup").Value);
Canvas.SetLeft(item, Double.Parse(itemXML.Element("Left").Value, CultureInfo.InvariantCulture) + OffsetX);
Canvas.SetTop(item, Double.Parse(itemXML.Element("Top").Value, CultureInfo.InvariantCulture) + OffsetY);
Canvas.SetZIndex(item, Int32.Parse(itemXML.Element("zIndex").Value));
Object content = XamlReader.Load(XmlReader.Create(new StringReader(itemXML.Element("Content").Value)));
item.Content = content;
return item;
}
public static DesignItem CreateDesignItem(DesignItemInfo designItemInfo)
{
var currentDate = DateTime.Now;
designItemInfo.CreateDate = currentDate;
designItemInfo.ModifyDate = currentDate;
var shape = new Shape();
var shapeInfoUnit = new ItemShapeInfoUnit(designItemInfo);
shape.ShapeInfoUnit = shapeInfoUnit;
shape.IsHitTestVisible = false;
shape.Style = Application.Current.Resources[designItemInfo.StyleKey] as Style;
if (designItemInfo.SvgBuffer != null)
{
using (var stream = new MemoryStream(designItemInfo.SvgBuffer))
{
var svgDrawing = SvgHelper.CreateSvgImage(stream); //SvgHelper.CreateSvgViewBox(stream);
if (svgDrawing != null)
{
shapeInfoUnit.SvgDrawing = svgDrawing;
shape.SetBinding(Shape.ContentProperty, BindingHelper.CreateBinding(shapeInfoUnit, "SvgDrawing"));
}
}
}
shape.SetBinding(Shape.TextProperty, BindingHelper.CreateBinding(designItemInfo, "Text"));
if (!string.IsNullOrEmpty(designItemInfo.DesignInfo.Backgroud))
{
var brushConverter = new BrushConverter();
shape.Background = (Brush)brushConverter.ConvertFromString(designItemInfo.DesignInfo.Backgroud);
}
var designItem = new DesignItem(designItemInfo.ID);
designItem.ParentID = designItemInfo.ParentID;
designItem.Content = shape;
designItem.SetBinding(DesignItem.LinkButtonVisibilityProperty, BindingHelper.CreateBinding(designItemInfo, "LinkButtonVisibility"));
designItem.SetBinding(DesignItem.WidthProperty, BindingHelper.CreateBinding(designItemInfo,"Width"));
designItem.SetBinding(DesignItem.HeightProperty, BindingHelper.CreateBinding(designItemInfo, "Height"));
designItem.SetBinding(DesignCanvas.LeftProperty, BindingHelper.CreateBinding(designItemInfo, "X"));
designItem.SetBinding(DesignCanvas.TopProperty, BindingHelper.CreateBinding(designItemInfo, "Y"));
designItem.SetBinding(DesignCanvas.ZIndexProperty, BindingHelper.CreateBinding(designItemInfo, "ZIndex"));
return designItem;
}
void thumbDragThumb_DragStarted(object sender, DragStartedEventArgs e)
{
this.HitDesignItem = null;
this.HitConnector = null;
this.pathGeometry = null;
this.Cursor = Cursors.Cross;
this.connection.StrokeDashArray = new DoubleCollection(new double[] { 1, 2 });
if (sender == sourceDragThumb)
{
fixConnector = connection.Sink;
dragConnector = connection.Source;
}
else if (sender == sinkDragThumb)
{
dragConnector = connection.Sink;
fixConnector = connection.Source;
}
}
void thumbDragThumb_DragCompleted(object sender, DragCompletedEventArgs e)
{
if (HitConnector != null)
{
if (connection != null)
{
if (connection.Source == fixConnector)
connection.Sink = this.HitConnector;
else
connection.Source = this.HitConnector;
}
}
this.HitDesignItem = null;
this.HitConnector = null;
this.pathGeometry = null;
this.connection.StrokeDashArray = null;
this.InvalidateVisual();
}
private void HitTesting(Point hitPoint)
{
bool hitConnectorFlag = false;
DependencyObject hitObject = designCanvas.InputHitTest(hitPoint) as DependencyObject;
while (hitObject != null && fixConnector!=null &&
hitObject != fixConnector.ParentDesignItem &&
hitObject.GetType() != typeof(DesignCanvas))
{
if (hitObject is Connector)
{
HitConnector = hitObject as Connector;
hitConnectorFlag = true;
}
if (hitObject is DesignItem)
{
HitDesignItem = hitObject as DesignItem;
if (!hitConnectorFlag)
HitConnector = null;
return;
}
hitObject = VisualTreeHelper.GetParent(hitObject);
}
HitConnector = null;
HitDesignItem = null;
}
private void SetConnectorDecoratorTemplate(DesignItem item)
{
if (item.ApplyTemplate() && item.Content is UIElement)
{
ControlTemplate template = DesignItem.GetConnectorDecoratorTemplate(item.Content as UIElement);
Control decorator = item.Template.FindName("PART_ConnectorDecorator", item) as Control;
if (decorator != null && template != null)
decorator.Template = template;
}
}
private void Group_Executed(object sender, ExecutedRoutedEventArgs e)
{
var items = from item in this.SelectionService.CurrentSelection.OfType<DesignItem>()
where item.ParentID == Guid.Empty
select item;
Rect rect = GetBoundingRectangle(items);
DesignItem groupItem = new DesignItem();
groupItem.IsGroup = true;
groupItem.Width = rect.Width;
groupItem.Height = rect.Height;
Canvas.SetLeft(groupItem, rect.Left);
Canvas.SetTop(groupItem, rect.Top);
Canvas groupCanvas = new Canvas();
groupItem.Content = groupCanvas;
Canvas.SetZIndex(groupItem, this.Children.Count);
this.Children.Add(groupItem);
foreach (DesignItem item in items)
item.ParentID = groupItem.ID;
this.SelectionService.SelectItem(groupItem);
this.CurrentDesignItemInfos.Add(new DesignItemInfo() { ID = groupItem.ID, ParentID = groupItem.ParentID, IsGroup = true, X = (decimal)rect.Left, Y = (decimal)rect.Top, Width = (decimal)rect.Width, Height = (decimal)rect.Height });
}