/// <summary>
/// Refreshes the final pixel render size which will be used by all the rendering methods
/// </summary>
/// <param name="invalidateFastImage">Creates a new FastImage and disposes the old one</param>
private void RefreshRenderSize(bool invalidateFastImage = false)
{
if (!IsLoaded)
{
return;
}
var refreshThread = new Thread(() =>
{
// suppress rendering actions while the windows is changed
MandelFrame.CancelToken.Cancel();
lock (MandelFrame.RenderLock)
{
MandelFrame.ResetToken();
// check best aspect ratio
double newWidth, newHeight;
if ((int)MandelBrotGrid.ActualWidth <= (int)MandelBrotGrid.ActualHeight)
{
// width is smaller
newWidth = MandelBrotGrid.ActualWidth;
newHeight = newWidth * ZoomSelectionHandler.GausRatioXy;
}
else
{
// height is smaller
newHeight = MandelBrotGrid.ActualHeight;
newWidth = newHeight * ZoomSelectionHandler.GausRatioYx;
}
RenderSizeRef.ChangeDisplaySize(newWidth, newHeight);
InvokeOnMainWindow(() =>
{
// set wpf control size
MandelBrotImage.Width = RenderSizeRef.DisplayWidth;
MandelBrotImage.Height = RenderSizeRef.DisplayHeight;
MandelBrotImagePreview.Width = RenderSizeRef.DisplayWidth;
MandelBrotImagePreview.Height = RenderSizeRef.DisplayHeight;
MandelBrotCanvas.Width = RenderSizeRef.DisplayWidth;
MandelBrotCanvas.Height = RenderSizeRef.DisplayHeight;
UpdateLayout();
});
if (invalidateFastImage)
{
InvokeOnMainWindow(() =>
{
// grab a new fast image
FastImageRef?.Dispose();
FastImageRef = new FastImage(MandelBrotImage, RenderSizeRef.RenderWidth,
RenderSizeRef.RenderHeight);
FastImagePreviewRef?.Dispose();
FastImagePreviewRef = new FastImage(MandelBrotImagePreview, RenderSizeRef.PreviewWidth,
RenderSizeRef.PreviewHeight);
});
// re-render
CurrentFrame?.RenderAsync();
}
}
});
refreshThread.Name = "RefreshThread";
refreshThread.Start();
}
