private void InitializeComponents()
{
this.ReciprocalScale = new ScaleTransform(Scale, Scale);
AdornedElement.SetDesignMinWidth(5);
AdornedElement.SetDesignMinHeight(5);
GripLayer.InitializeComponents();
#region < Add Move Thumb >
Add(moveThumb = new LayerMoveThumb(this));
moveThumb.DragStarted += MoveThumb_DragStarted;
moveThumb.DragCompleted += MoveThumb_DragCompleted;
moveThumb.Moved += MoveThumb_Moved;
// Selection
moveThumb.PreviewMouseLeftButtonDown += MoveThumb_PreviewMouseLeftButtonDown;
moveThumb.PreviewMouseLeftButtonUp += MoveThumb_PreviewMouseLeftButtonUp;
#endregion
#region < Binding >
var reciprocalConverter = new ReciprocalConverter();
// ParentScale X -> scale X
BindingHelper.SetBinding(
Zoom, ZoomPanel.ScaleProperty,
ReciprocalScale, ScaleTransform.ScaleXProperty,
converter: reciprocalConverter);
// ParentScale Y -> scale Y
BindingHelper.SetBinding(
Zoom, ZoomPanel.ScaleProperty,
ReciprocalScale, ScaleTransform.ScaleYProperty,
converter: reciprocalConverter);
#endregion
}
protected override void OnVisualParentChanged(DependencyObject oldParent)
{
base.OnVisualParentChanged(oldParent);
if (this.Parent is ZoomPanel zoomPanel)
{
this.ZoomPanel = zoomPanel;
scaleConverter = new ReciprocalConverter();
scaleTransform = new ScaleTransform();
// ParentScale X -> scale X
BindingHelper.SetBinding(
ZoomPanel, ZoomPanel.ScaleProperty,
scaleTransform, ScaleTransform.ScaleXProperty,
converter: scaleConverter);
// ParentScale Y -> scale Y
BindingHelper.SetBinding(
ZoomPanel, ZoomPanel.ScaleProperty,
scaleTransform, ScaleTransform.ScaleYProperty,
converter: scaleConverter);
}
}
private void InitializeComponents()
{
AdornedElement.SetDesignMinWidth(5);
AdornedElement.SetDesignMinHeight(5);
var scale = new ScaleTransform(Scale, Scale);
#region < Add Move Thumb >
Add(moveThumb = new LayerMoveThumb(this));
moveThumb.DragStarted += MoveThumb_DragStarted;
moveThumb.DragCompleted += MoveThumb_DragCompleted;
moveThumb.Moved += MoveThumb_Moved;
// Selection
moveThumb.PreviewMouseLeftButtonDown += MoveThumb_PreviewMouseLeftButtonDown;
moveThumb.PreviewMouseLeftButtonUp += MoveThumb_PreviewMouseLeftButtonUp;
#endregion
#region < Add Margin Clips >
ClipData = new MarginClipHolder();
Add(clipGrid = new Grid()
{
Visibility = Visibility.Collapsed,
Children =
{
(ClipData.LeftClip = new LayerMarginClip
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
LayoutTransform = new TransformGroup()
{
Children =
{
scale,
new RotateTransform(90)
}
}
}),
(ClipData.TopClip = new LayerMarginClip
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
LayoutTransform = scale
}),
(ClipData.RightClip = new LayerMarginClip
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
LayoutTransform = new TransformGroup()
{
Children =
{
scale,
new RotateTransform(90)
}
}
}),
(ClipData.BottomClip = new LayerMarginClip
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
LayoutTransform = scale
}),
}
});
#endregion
#region < Add Grips >
Add(resizeGrid = new Grid()
{
Visibility = Visibility.Collapsed,
Children =
{
new LayerResizeThumb(this)
{
Width = GripSize,
Height = GripSize,
ResizeDirection = ResizeGripDirection.TopLeft,
Cursor = Cursors.SizeNWSE,
Margin = new Thickness(-GripSize, -GripSize, GripSize, GripSize),
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Top,
RenderTransform = scale,
RenderTransformOrigin = new Point(1, 1)
},
new LayerResizeThumb(this)
{
Width = GripSize,
Height = GripSize,
ResizeDirection = ResizeGripDirection.Top,
Cursor = Cursors.SizeNS,
Margin = new Thickness(0, -GripSize, 0, GripSize),
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Top,
RenderTransform = scale,
RenderTransformOrigin = new Point(0.5, 1)
},
new LayerResizeThumb(this)
{
Width = GripSize,
Height = GripSize,
ResizeDirection = ResizeGripDirection.TopRight,
Cursor = Cursors.SizeNESW,
Margin = new Thickness(GripSize, -GripSize, -GripSize, GripSize),
HorizontalAlignment = HorizontalAlignment.Right,
VerticalAlignment = VerticalAlignment.Top,
RenderTransform = scale,
RenderTransformOrigin = new Point(0, 1)
},
new LayerResizeThumb(this)
{
Width = GripSize,
Height = GripSize,
ResizeDirection = ResizeGripDirection.Left,
Cursor = Cursors.SizeWE,
Margin = new Thickness(-GripSize, 0, GripSize, 0),
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Center,
RenderTransform = scale,
RenderTransformOrigin = new Point(1, 0.5)
},
new LayerResizeThumb(this)
{
Width = GripSize,
Height = GripSize,
ResizeDirection = ResizeGripDirection.Right,
Cursor = Cursors.SizeWE,
Margin = new Thickness(GripSize, 0, -GripSize, 0),
HorizontalAlignment = HorizontalAlignment.Right,
VerticalAlignment = VerticalAlignment.Center,
RenderTransform = scale,
RenderTransformOrigin = new Point(0, 0.5)
},
new LayerResizeThumb(this)
{
Width = GripSize, Height = GripSize,
ResizeDirection = ResizeGripDirection.BottomLeft,
Cursor = Cursors.SizeNESW,
Margin = new Thickness(-GripSize, GripSize, GripSize, -GripSize),
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Bottom,
RenderTransform = scale,
RenderTransformOrigin = new Point(1, 0)
},
new LayerResizeThumb(this)
{
Width = GripSize, Height = GripSize,
ResizeDirection = ResizeGripDirection.Bottom,
Cursor = Cursors.SizeNS,
Margin = new Thickness(0, GripSize, 0, -GripSize),
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Bottom,
RenderTransform = scale,
RenderTransformOrigin = new Point(0.5, 0)
},
new LayerResizeThumb(this)
{
Width = GripSize, Height = GripSize,
ResizeDirection = ResizeGripDirection.BottomRight,
Cursor = Cursors.SizeNWSE,
Margin = new Thickness(GripSize, GripSize, -GripSize, -GripSize),
HorizontalAlignment = HorizontalAlignment.Right,
VerticalAlignment = VerticalAlignment.Bottom,
RenderTransform = scale
}
}
});
#endregion
#region < Add Event Trigger Button >
Add(TriggerButton = new LayerEventTriggerButton(this)
{
Visibility = Visibility.Collapsed,
Margin = new Thickness(10, 0, -10, 0),
HorizontalAlignment = HorizontalAlignment.Right,
VerticalAlignment = VerticalAlignment.Center,
RenderTransformOrigin = new Point(0, 0.5),
RenderTransform = scale
});
#endregion
#region < Binding >
var reciprocalConverter = new ReciprocalConverter();
// ParentScale X -> scale X
BindingHelper.SetBinding(
Zoom, ZoomPanel.ScaleProperty,
scale, ScaleTransform.ScaleXProperty,
converter: reciprocalConverter);
// ParentScale Y -> scale Y
BindingHelper.SetBinding(
Zoom, ZoomPanel.ScaleProperty,
scale, ScaleTransform.ScaleYProperty,
converter: reciprocalConverter);
// SelectionBrush -> triggerButton Background
BindingHelper.SetBinding(
this, SelectionBrushProperty,
TriggerButton, Control.BackgroundProperty);
var reverseConverter = new MultiplayConverter()
{
Value = -1
};
foreach (LayerResizeThumb thumb in resizeGrid.Children)
{
// SelectionBrush -> thumb Stroke
BindingHelper.SetBinding(
this, SelectionBrushProperty,
thumb, LayerResizeThumb.StrokeProperty);
thumb.DragStarted += ThumbOnDragStarted;
thumb.DragCompleted += ThumbOnDragCompleted;
}
// caching
UpdateMarginClips();
foreach (LayerMarginClip clip in clipGrid.Children)
{
ToggleButton.IsCheckedProperty.AddValueChanged(clip, ClipChanged);
}
#endregion
}