public Rect GetIconRect(int gridSize)
{
if (_iconRect == default || _gridSizeIconRect != gridSize)
{
var objRect = CalculateScreenRect(gridSize);
if (_lastScreenRectForIcon != objRect)
{
// draw icon 2x2 grid cells large
var minSize = Math.Min(Size.Width, Size.Height);
//minSize = minSize == 1 ? minSize : Math.Floor(NthRoot(minSize, Constants.IconSizeFactor) + 1);
var iconSize = _coordinateHelper.GridToScreen(new Size(minSize, minSize), gridSize);
iconSize = minSize == 1 ? iconSize : new Size(MathHelper.NthRoot(iconSize.Width, Constants.IconSizeFactor), MathHelper.NthRoot(iconSize.Height, Constants.IconSizeFactor));
// center icon within the object
var iconPos = objRect.TopLeft;
iconPos.X += (objRect.Width / 2) - (iconSize.Width / 2);
iconPos.Y += (objRect.Height / 2) - (iconSize.Height / 2);
_iconRect = new Rect(iconPos, iconSize);
_gridSizeIconRect = gridSize;
_lastScreenRectForIcon = objRect;
}
}
return(_iconRect);
}
/// <summary>
/// Asynchronously renders the current layout to file.
/// </summary>
/// <param name="filename">filename of the output image</param>
/// <param name="border">normalization value used prior to exporting</param>
/// <param name="exportZoom">indicates whether the current zoom level should be applied, if false the default zoom is used</param>
/// <param name="exportSelection">indicates whether selection and influence highlights should be rendered</param>
private void RenderToFile(string filename, int border, bool exportZoom, bool exportSelection, bool renderStatistics)
{
if (annoCanvas.PlacedObjects.Count == 0)
{
return;
}
// copy all objects
var allObjects = annoCanvas.PlacedObjects.Select(_ => new AnnoObject(_)).Cast <AnnoObject>().ToList();
// copy selected objects
// note: should be references to the correct copied objects from allObjects
var selectedObjects = annoCanvas.SelectedObjects.Select(_ => new AnnoObject(_)).ToList();
Debug.WriteLine($"UI thread: {Thread.CurrentThread.ManagedThreadId} ({Thread.CurrentThread.Name})");
void renderThread()
{
Debug.WriteLine($"Render thread: {Thread.CurrentThread.ManagedThreadId} ({Thread.CurrentThread.Name})");
Stopwatch sw = new Stopwatch();
sw.Start();
var icons = new Dictionary <string, IconImage>(StringComparer.OrdinalIgnoreCase);
foreach (var curIcon in annoCanvas.Icons)
{
icons.Add(curIcon.Key, new IconImage(curIcon.Value.Name, curIcon.Value.Localizations, curIcon.Value.IconPath));
}
// initialize output canvas
var target = new AnnoCanvas(annoCanvas.BuildingPresets, icons)
{
PlacedObjects = allObjects,
RenderGrid = annoCanvas.RenderGrid,
RenderIcon = annoCanvas.RenderIcon,
RenderLabel = annoCanvas.RenderLabel
};
sw.Stop();
Debug.WriteLine($"creating canvas took: {sw.ElapsedMilliseconds}ms");
// normalize layout
target.Normalize(border);
// set zoom level
if (exportZoom)
{
target.GridSize = annoCanvas.GridSize;
}
// set selection
if (exportSelection)
{
target.SelectedObjects.AddRange(selectedObjects);
}
// calculate output size
var width = _coordinateHelper.GridToScreen(target.PlacedObjects.Max(_ => _.Position.X + _.Size.Width) + border, target.GridSize); //if +1 then there are weird black lines next to the statistics view
var height = _coordinateHelper.GridToScreen(target.PlacedObjects.Max(_ => _.Position.Y + _.Size.Height) + border, target.GridSize) + 1; //+1 for black grid line at bottom
if (renderStatistics)
{
var exportStatisticsView = new StatisticsView
{
Margin = new Thickness(5, 0, 0, 0)
};
exportStatisticsView.statisticsViewModel.UpdateStatistics(target.PlacedObjects, target.SelectedObjects, target.BuildingPresets);
exportStatisticsView.statisticsViewModel.CopyLocalization(_mainViewModel.StatisticsViewModel);
exportStatisticsView.statisticsViewModel.ShowBuildingList = _mainViewModel.StatisticsViewModel.ShowBuildingList;
target.StatisticsPanel.Children.Add(exportStatisticsView);
//according to https://stackoverflow.com/a/25507450
// and https://stackoverflow.com/a/1320666
exportStatisticsView.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
//exportStatisticsView.Arrange(new Rect(new Point(0, 0), exportStatisticsView.DesiredSize));
if (exportStatisticsView.DesiredSize.Height > height)
{
height = exportStatisticsView.DesiredSize.Height + target.LinePenThickness + border;
}
width += exportStatisticsView.DesiredSize.Width + target.LinePenThickness;
}
target.Width = width;
target.Height = height;
target.UpdateLayout();
// apply size
var outputSize = new Size(width, height);
target.Measure(outputSize);
target.Arrange(new Rect(outputSize));
// render canvas to file
DataIO.RenderToFile(target, filename);
}
var thread = new Thread(renderThread);
thread.IsBackground = true;
thread.Name = "exportImage";
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
thread.Join(TimeSpan.FromSeconds(10));
}
