private void OnCanvasViewIsHighQualityScalingEnabledChanged(object sender, ValueChangedEventArgs <bool> e)
{
if (!base.CheckAccess())
{
PaintDotNet.Canvas.Canvas owner = base.Owner;
if ((owner != null) && (owner.Dispatcher != null))
{
try
{
object[] args = new object[] { sender, e };
base.Owner.Dispatcher.BeginInvoke(new Action <object, ValueChangedEventArgs <bool> >(this.OnCanvasViewIsHighQualityScalingEnabledChanged), args);
}
catch (Exception)
{
}
}
}
else if (!base.IsDisposed)
{
CanvasView key = (CanvasView)sender;
if (this.documentCanvasLayerViews.ContainsKey(key))
{
this.RecreateDocumentCanvasLayerView(key);
key.Invalidate(key.GetCanvasBounds());
}
}
}
private void OnCanvasChanged(PaintDotNet.Canvas.Canvas oldValue, PaintDotNet.Canvas.Canvas newValue)
{
if (oldValue != null)
{
oldValue.Invalidated -= new EventHandler <CanvasInvalidatedEventArgs>(this.OnCanvasInvalidated);
}
if (newValue != null)
{
newValue.Invalidated += new EventHandler <CanvasInvalidatedEventArgs>(this.OnCanvasInvalidated);
}
this.CanvasChanged.Raise <PaintDotNet.Canvas.Canvas>(this, oldValue, newValue);
}
private bool OnLayoutImpl()
{
Rectangle clientRectangle = base.ClientRectangle;
Size size = clientRectangle.Size;
if ((size.Width >= 0) && (size.Height >= 0))
{
RectDouble viewportRect = clientRectangle.ToRectDouble();
SizeDouble num2 = size.ToSizeDouble();
int horizontalScrollBarHeight = SystemInformation.HorizontalScrollBarHeight;
int verticalScrollBarWidth = SystemInformation.VerticalScrollBarWidth;
PaintDotNet.Canvas.Canvas canvas = this.canvasControl.Canvas;
PaintDotNet.Canvas.CanvasView canvasView = this.canvasControl.CanvasView;
SizeDouble canvasSize = canvasView.CanvasSize;
RectDouble canvasBounds = canvasView.GetCanvasBounds();
SizeDouble viewportSize = canvasView.ViewportSize;
SizeDouble num9 = canvasView.ViewportCanvasBounds.Size;
PointDouble viewportCanvasOffset = canvasView.ViewportCanvasOffset;
PointDouble viewportCanvasOffsetMin = canvasView.ViewportCanvasOffsetMin;
PointDouble viewportCanvasOffsetMax = canvasView.ViewportCanvasOffsetMax;
SizeDouble num14 = canvasView.ConvertViewportToCanvas(viewportRect).Size;
SizeDouble num15 = new SizeDouble(Math.Max((double)0.0, (double)(num2.Width - verticalScrollBarWidth)), Math.Max((double)0.0, (double)(num2.Height - horizontalScrollBarHeight)));
RectDouble num16 = new RectDouble(viewportRect.Location, num15);
SizeDouble num18 = canvasView.ConvertViewportToCanvas(num16).Size;
ThicknessDouble frameCanvasPadding = canvasView.FrameCanvasPadding;
RectDouble framedCanvasBounds = canvasView.FramedCanvasBounds;
bool flag = false;
bool flag2 = false;
if ((this.canvasControl == null) || (canvasView.ScaleBasis == ScaleBasis.FitToViewport))
{
flag = false;
flag2 = false;
}
else
{
if (framedCanvasBounds.Width > num14.Width)
{
flag = true;
if (framedCanvasBounds.Height > num18.Height)
{
flag2 = true;
}
}
if (framedCanvasBounds.Height > num14.Height)
{
flag2 = true;
if (framedCanvasBounds.Width > num18.Width)
{
flag = true;
}
}
}
int num21 = size.Width - (flag2 ? verticalScrollBarWidth : 0);
int width = Math.Max(0, num21);
int num23 = size.Height - (flag ? horizontalScrollBarHeight : 0);
int height = Math.Max(0, num23);
Rectangle rectangle2 = new Rectangle(0, 0, width, height);
double scaleRatio = canvasView.ScaleRatio;
this.canvasControl.Bounds = rectangle2;
this.canvasControl.PerformLayout();
canvasView.CoerceValue(PaintDotNet.Canvas.CanvasView.ScaleRatioProperty);
if ((canvasView.ScaleRatio != scaleRatio) || (canvasView.ViewportSize != viewportSize))
{
return(false);
}
if (flag)
{
Rectangle newBounds = new Rectangle(0, size.Height - horizontalScrollBarHeight, size.Width - (flag2 ? verticalScrollBarWidth : 0), horizontalScrollBarHeight);
int min = this.ConvertToScrollBar(viewportCanvasOffsetMin.X);
int max = this.ConvertToScrollBar(viewportCanvasOffsetMax.X + num9.Width);
int newLargeChange = this.ConvertToScrollBar(num9.Width);
int newSmallChange = this.ConvertToScrollBar(num9.Width / 10.0);
int newValue = Int32Util.Clamp(this.ConvertToScrollBar(viewportCanvasOffset.X), min, max);
UpdateScrollBar(this.hScrollBar, newBounds, min, max, newLargeChange, newSmallChange, newValue);
}
if (flag2)
{
Rectangle rectangle4 = new Rectangle(size.Width - verticalScrollBarWidth, 0, verticalScrollBarWidth, size.Height - (flag ? horizontalScrollBarHeight : 0));
int num31 = this.ConvertToScrollBar(viewportCanvasOffsetMin.Y);
int num32 = this.ConvertToScrollBar(viewportCanvasOffsetMax.Y + num9.Height);
int num33 = this.ConvertToScrollBar(num9.Height);
int num34 = this.ConvertToScrollBar(num9.Height / 10.0);
int num35 = Int32Util.Clamp(this.ConvertToScrollBar(viewportCanvasOffset.Y), num31, num32);
UpdateScrollBar(this.vScrollBar, rectangle4, num31, num32, num33, num34, num35);
}
this.hScrollBar.Visible = flag;
this.vScrollBar.Visible = flag2;
}
return(true);
}
protected virtual void OnCanvasChanged(PaintDotNet.Canvas.Canvas oldValue, PaintDotNet.Canvas.Canvas newValue)
{
}
