Skip to content
This repository was archived by the owner on Oct 16, 2020. It is now read-only.

Minor changes to allow inheritance from CanvasPlacementSupport #443

Merged
siegfriedpammer merged 1 commit into from
Apr 27, 2014
Merged

Minor changes to allow inheritance from CanvasPlacementSupport #443

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 14 additions & 5 deletions ...DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Extensions/CanvasPlacementSupport.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -30,9 +30,11 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
/// Provides <see cref="IPlacementBehavior"/> behavior for <see cref="Canvas"/>.
/// </summary>
[ExtensionFor(typeof(Canvas), OverrideExtension=typeof(DefaultPlacementBehavior))]
public sealed class CanvasPlacementSupport : SnaplinePlacementBehavior
public class CanvasPlacementSupport : SnaplinePlacementBehavior
{
GrayOutDesignerExceptActiveArea grayOut;
FrameworkElement extendedComponent;
FrameworkElement extendedView;

static double GetCanvasProperty(UIElement element, DependencyProperty d)
{
Expand All @@ -48,6 +50,14 @@ static bool IsPropertySet(UIElement element, DependencyProperty d)
return element.ReadLocalValue(d) != DependencyProperty.UnsetValue;
}

protected override void OnInitialized()
{
base.OnInitialized();

extendedComponent = (FrameworkElement)ExtendedItem.Component;
extendedView = (FrameworkElement)this.ExtendedItem.View;
}

public override void SetPosition(PlacementInformation info)
{
base.SetPosition(info);
Expand All @@ -58,7 +68,7 @@ public override void SetPosition(PlacementInformation info)

if (IsPropertySet(child, Canvas.RightProperty))
{
var newR = ((Canvas) ExtendedItem.Component).ActualWidth - newPosition.Right;
var newR = extendedComponent.ActualWidth - newPosition.Right;
if (newR != GetCanvasProperty(child, Canvas.RightProperty))
info.Item.Properties.GetAttachedProperty(Canvas.RightProperty).SetValue(newR);
}
Expand All @@ -70,7 +80,7 @@ public override void SetPosition(PlacementInformation info)

if (IsPropertySet(child, Canvas.BottomProperty))
{
var newB = ((Canvas)ExtendedItem.Component).ActualHeight - newPosition.Bottom;
var newB = extendedComponent.ActualHeight - newPosition.Bottom;
if (newB != GetCanvasProperty(child, Canvas.BottomProperty))
info.Item.Properties.GetAttachedProperty(Canvas.BottomProperty).SetValue(newB);
}
Expand All @@ -81,8 +91,7 @@ public override void SetPosition(PlacementInformation info)

if (info.Item == Services.Selection.PrimarySelection)
{
var cv = this.ExtendedItem.View as Canvas;
var b = new Rect(0, 0, cv.ActualWidth, cv.ActualHeight);
var b = new Rect(0, 0, extendedView.ActualWidth, extendedView.ActualHeight);
// only for primary selection:
if (grayOut != null)
{
Expand Down