private TextBlock CreateTextLabel(IsolineTextLabel textLabel)
{
var transform = Plotter2D.Viewport.Transform;
Point screenPos = textLabel.Position.DataToScreen(transform);
double angle = textLabel.Rotation;
Debug.WriteLine(angle);
if (angle < 0)
{
angle += 360;
}
if (135 < angle && angle < 225)
{
angle -= 180;
}
TextBlock res = new TextBlock
{
Text = textLabel.Text,
RenderTransform = new RotateTransform(angle),
Tag = textLabel,
RenderTransformOrigin = new Point(0.5, 0.5)
};
res.Measure(SizeHelper.CreateInfiniteSize());
Size textSize = res.DesiredSize;
Point position = new Point(screenPos.X - textSize.Width / 2, screenPos.Y - textSize.Height / 2);
Canvas.SetLeft(res, position.X);
Canvas.SetTop(res, position.Y);
return(res);
}
private FrameworkElement CreateTextLabel(IsolineTextLabel textLabel)
{
var transform = Plotter2D.Viewport.Transform;
Point screenPos = textLabel.Position.DataToScreen(transform);
double angle = textLabel.Rotation;
if (angle < 0)
{
angle += 360;
}
if (135 < angle && angle < 225)
{
angle -= 180;
}
string tooltip = textLabel.Value.ToString("F"); //String.Format("{0} at ({1}, {2})", textLabel.Text, textLabel.Position.X, textLabel.Position.Y);
Grid grid = new Grid
{
RenderTransform = new RotateTransform(angle),
Tag = textLabel,
RenderTransformOrigin = new Point(0.5, 0.5),
ToolTip = tooltip
};
TextBlock res = new TextBlock
{
Text = textLabel.Value.ToString("F"),
Margin = new Thickness(3, 1, 3, 1)
};
//res.Measure(SizeHelper.CreateInfiniteSize());
Rectangle rect = new Rectangle
{
Stroke = Brushes.Gray,
Fill = labelBackground,
RadiusX = 8,
RadiusY = 8
};
grid.Children.Add(rect);
grid.Children.Add(res);
grid.Measure(SizeHelper.CreateInfiniteSize());
Size textSize = grid.DesiredSize;
Point position = new Point(screenPos.X - textSize.Width / 2, screenPos.Y - textSize.Height / 2);
Canvas.SetLeft(grid, position.X);
Canvas.SetTop(grid, position.Y);
return(grid);
}
private void UpdateUIRepresentation()
{
foreach (var path in linePaths)
{
LevelLine line = (LevelLine)path.Tag;
path.Data = CreateGeometry(line);
}
var transform = Plotter2D.Viewport.Transform;
Rect output = Plotter2D.Viewport.Output;
DataRect visible = Plotter2D.Viewport.Visible;
if (rebuildText)
{
foreach (var text in textBlocks)
{
if (text.Visibility == Visibility.Visible)
{
content.Children.Remove(text);
}
}
textBlocks.Clear();
double wayBeforeText = new Rect(new Size(100, 100)).ScreenToData(transform).Width;
Annotater.WayBeforeText = wayBeforeText;
var textLabels = Annotater.Annotate(Collection, Plotter2D.Viewport.Visible);
foreach (var textLabel in textLabels)
{
TextBlock text = CreateTextLabel(textLabel);
textBlocks.Add(text);
if (visible.Contains(textLabel.Position))
{
content.Children.Add(text);
}
else
{
text.Visibility = Visibility.Hidden;
}
}
}
else
{
foreach (var text in textBlocks)
{
IsolineTextLabel label = (IsolineTextLabel)text.Tag;
Point screenPos = label.Position.DataToScreen(transform);
Size textSize = text.DesiredSize;
Point position = new Point(screenPos.X - textSize.Width / 2, screenPos.Y - textSize.Height / 2);
if (output.Contains(position))
{
Canvas.SetLeft(text, position.X);
Canvas.SetTop(text, position.Y);
if (text.Visibility == Visibility.Hidden)
{
text.Visibility = Visibility.Visible;
content.Children.Add(text);
}
}
else if (text.Visibility == Visibility.Visible)
{
text.Visibility = Visibility.Hidden;
content.Children.Remove(text);
}
}
}
}