public void DrawHoverSample(Map map, DrawingGroup drawingArea, double zoom, Point pixelPosition)
{
bool isIntersecting = ImageUtils.Intersects(map.CurrentLayer.Value.Group, pixelPosition);
if (!isIntersecting && !this.isDrawing)
{
return;
}
Point topLeft = GeometryUtils.TopLeftPoint(this.pressPoint, pixelPosition);
Point bottomRight = GeometryUtils.BottomRightPoint(this.pressPoint, pixelPosition);
topLeft = ImageUtils.BindPoint(map.CurrentLayer.Value.Group, topLeft);
bottomRight = ImageUtils.BindPoint(map.CurrentLayer.Value.Group, bottomRight);
Stack <Tile> tiles;
if (!this.isDrawing)
{
tiles = DrawBrushModel(pixelPosition);
}
else
{
tiles = DrawTiles(topLeft, bottomRight);
}
if (this.IsErasing)
{
DrawAction action = new DrawAction(this.ToolName, tiles);
tiles = map.DrawSample(action).Tiles;
}
using (DrawingContext context = drawingArea.Open())
{
if (this.isDrawing)
{
if (isIntersecting)
{
bottomRight += new Vector(this.Brush.TileWidth.Value, this.Brush.TileHeight.Value);
}
double thickness = 4 / zoom;
this.AreaPen.Thickness = thickness > this.maxGridThickness ? thickness : this.maxGridThickness;
Rect rect = new Rect(topLeft, bottomRight);
context.DrawRectangle(this.AreaBrush, this.AreaPen, rect);
}
if (typeof(Layer).IsAssignableFrom(map.CurrentLayer.GetType()))
{
Layer currentLayer = map.CurrentLayer.Value as Layer;
foreach (Tile tile in tiles)
{
if (tile.Bounds.IntersectsWith(currentLayer.GetBoundsExclusive()))
{
context.DrawDrawing(tile.Image.Value);
}
}
}
}
}
public void DrawReleased(Map map, Point pixelPosition)
{
if (!ImageUtils.Intersects(map.CurrentLayer.Value.Group, pixelPosition))
{
pixelPosition = ImageUtils.BindPoint(map.CurrentLayer.Value.Group, pixelPosition);
}
Point topLeft = GeometryUtils.TopLeftPoint(this.pressPoint, pixelPosition);
Point bottomRight = GeometryUtils.BottomRightPoint(this.pressPoint, pixelPosition);
Stack <Tile> tiles = DrawTiles(topLeft, bottomRight);
DrawAction action = new DrawAction(this.ToolName, tiles);
map.Draw(action);
this.isDrawing = false;
}
