public AdvancedCarnassialOptions(CarnassialState state, MarkableCanvas markableCanvas, Window owner)
{
this.InitializeComponent();
this.Owner = owner;
this.carnassialState = state;
this.markableCanvas = markableCanvas;
// Throttles
this.ImageRendersPerSecond.Minimum = Constant.ThrottleValues.DesiredMaximumImageRendersPerSecondLowerBound;
this.ImageRendersPerSecond.Maximum = Constant.ThrottleValues.DesiredMaximumImageRendersPerSecondUpperBound;
this.ImageRendersPerSecond.Value = this.carnassialState.Throttles.DesiredImageRendersPerSecond;
this.ImageRendersPerSecond.ValueChanged += this.ImageRendersPerSecond_ValueChanged;
this.ImageRendersPerSecond.ToolTip = this.carnassialState.Throttles.DesiredImageRendersPerSecond;
// The Max Zoom Value
this.MaxZoom.Value = this.markableCanvas.ZoomMaximum;
this.MaxZoom.ToolTip = this.markableCanvas.ZoomMaximum;
this.MaxZoom.Maximum = Constant.MarkableCanvas.ImageZoomMaximumRangeMaximum;
this.MaxZoom.Minimum = Constant.MarkableCanvas.ImageZoomMaximumRangeMinimum;
// Image Differencing Thresholds
this.DifferenceThreshold.Value = this.carnassialState.DifferenceThreshold;
this.DifferenceThreshold.ToolTip = this.carnassialState.DifferenceThreshold;
this.DifferenceThreshold.Maximum = Constant.Images.DifferenceThresholdMax;
this.DifferenceThreshold.Minimum = Constant.Images.DifferenceThresholdMin;
}
public MagnifyingGlass(MarkableCanvas markableCanvas)
{
this.FieldOfView = Constant.MarkableCanvas.MagnifyingGlassDefaultFieldOfView;
this.IsEnabled = false;
this.IsHitTestVisible = false;
this.HorizontalAlignment = HorizontalAlignment.Left;
this.Parent = markableCanvas;
this.VerticalAlignment = VerticalAlignment.Top;
this.Visibility = Visibility.Collapsed;
this.lensAngle = 0.0;
this.magnifyingGlassAngle = 0.0;
// Create the handle of the magnifying glass
Line handle = new Line();
handle.StrokeThickness = 5;
handle.X1 = Constant.MarkableCanvas.MagnifyingGlassHandleStart;
handle.Y1 = Constant.MarkableCanvas.MagnifyingGlassHandleStart;
handle.X2 = Constant.MarkableCanvas.MagnifyingGlassHandleEnd;
handle.Y2 = Constant.MarkableCanvas.MagnifyingGlassHandleEnd;
LinearGradientBrush handleBrush = new LinearGradientBrush();
handleBrush.StartPoint = new Point(0.78786, 1);
handleBrush.EndPoint = new Point(1, 0.78786);
handleBrush.GradientStops.Add(new GradientStop(Colors.DarkGreen, 0));
handleBrush.GradientStops.Add(new GradientStop(Colors.LightGreen, 0.9));
handleBrush.GradientStops.Add(new GradientStop(Colors.Green, 1));
handle.Stroke = handleBrush;
this.Children.Add(handle);
// Create the lens of the magnifying glass
this.lensCanvas = new Canvas();
this.Children.Add(this.lensCanvas);
// lens has a white backgound
Ellipse lensBackground = new Ellipse();
lensBackground.Width = Constant.MarkableCanvas.MagnifyingGlassDiameter;
lensBackground.Height = Constant.MarkableCanvas.MagnifyingGlassDiameter;
lensBackground.Fill = Brushes.White;
this.lensCanvas.Children.Add(lensBackground);
this.magnifierLens = new Ellipse();
this.magnifierLens.Width = Constant.MarkableCanvas.MagnifyingGlassDiameter;
this.magnifierLens.Height = Constant.MarkableCanvas.MagnifyingGlassDiameter;
this.magnifierLens.StrokeThickness = 3;
// fill the lens
VisualBrush lensFill = new VisualBrush();
lensFill.ViewboxUnits = BrushMappingMode.Absolute;
lensFill.Viewbox = new Rect(0, 0, 50, 50);
lensFill.ViewportUnits = BrushMappingMode.RelativeToBoundingBox;
lensFill.Viewport = new Rect(0, 0, 1, 1);
this.magnifierLens.Fill = lensFill;
// outline the lens
LinearGradientBrush outlineBrush = new LinearGradientBrush();
outlineBrush.StartPoint = new Point(0, 0);
outlineBrush.EndPoint = new Point(0, 1);
ColorConverter cc = new ColorConverter();
outlineBrush.GradientStops.Add(new GradientStop((Color)cc.ConvertFrom("#AAA"), 0));
outlineBrush.GradientStops.Add(new GradientStop((Color)cc.ConvertFrom("#111"), 1));
this.magnifierLens.Stroke = outlineBrush;
this.lensCanvas.Children.Add(this.magnifierLens);
Ellipse lensImage = new Ellipse();
Canvas.SetLeft(lensImage, 2);
Canvas.SetTop(lensImage, 2);
lensImage.StrokeThickness = 4;
lensImage.Width = Constant.MarkableCanvas.MagnifyingGlassDiameter - 4;
lensImage.Height = Constant.MarkableCanvas.MagnifyingGlassDiameter - 4;
this.lensCanvas.Children.Add(lensImage);
// crosshairs
Line verticalCrosshair = new Line();
verticalCrosshair.StrokeThickness = 0.25;
verticalCrosshair.X1 = 5;
verticalCrosshair.Y1 = Constant.MarkableCanvas.MagnifyingGlassDiameter / 2;
verticalCrosshair.X2 = Constant.MarkableCanvas.MagnifyingGlassDiameter - 5;
verticalCrosshair.Y2 = Constant.MarkableCanvas.MagnifyingGlassDiameter / 2;
verticalCrosshair.Stroke = Brushes.Black;
verticalCrosshair.Opacity = 0.5;
this.lensCanvas.Children.Add(verticalCrosshair);
Line horizontalCrosshair = new Line();
horizontalCrosshair.StrokeThickness = 0.25;
horizontalCrosshair.X1 = Constant.MarkableCanvas.MagnifyingGlassDiameter / 2;
horizontalCrosshair.Y1 = 5;
horizontalCrosshair.X2 = Constant.MarkableCanvas.MagnifyingGlassDiameter / 2;
horizontalCrosshair.Y2 = Constant.MarkableCanvas.MagnifyingGlassDiameter - 5;
horizontalCrosshair.Stroke = Brushes.Black;
horizontalCrosshair.Opacity = 0.5;
this.lensCanvas.Children.Add(horizontalCrosshair);
// set render transform
// Rotate the glass before translating it as that ordering means translation calculations don't have to account for rotation. If this is changed
// RedrawIfVisible() must be updated.
this.rotation = new RotateTransform(this.magnifyingGlassAngle, Constant.MarkableCanvas.MagnifyingGlassDiameter, Constant.MarkableCanvas.MagnifyingGlassDiameter);
this.translation = new TranslateTransform();
TransformGroup transformGroup = new TransformGroup();
transformGroup.Children.Add(this.rotation);
transformGroup.Children.Add(this.translation);
this.RenderTransform = transformGroup;
}