using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Shapes;
using System.Diagnostics;
namespace UI
{
public class DrawingArea : System.Windows.Controls.Canvas
{
public Action<int,int> resizeCallback;
public Color Color;
private Brush Brush;
public DrawingArea(Container container) : base()
{
this.SizeChanged += UpdateSize;
ResetGraphics();
container.Add(this, true);
}
public void UpdateSize(object sender, SizeChangedEventArgs e)
{
if(resizeCallback != null)
{
Children.Clear();
ResetGraphics();
Size s = e.NewSize;
resizeCallback((int)s.Width, (int)s.Height);
}
}
public void Redraw()
{
if (resizeCallback != null)
{
Children.Clear();
ResetGraphics();
resizeCallback((int)ActualWidth, (int)ActualHeight);
}
}
private void ResetGraphics()
{
Color = Color.FromRgb(0, 0, 0);
Brush = System.Windows.Media.Brushes.Black;
}
public void SetColor(int r, int g, int b)
{
Color = Color.FromRgb((byte)r, (byte)g, (byte)b);
Brush = new SolidColorBrush(Color);
}
public void DrawLine(int x1, int y1, int x2, int y2)
{
Line line = new Line();
line.Stroke = Brush;
line.StrokeThickness = 1;
line.SnapsToDevicePixels = true;
line.X1 = x1;
line.Y1 = y1;
line.X2 = x2;
line.Y2 = y2;
Children.Add(line);
}
public void DrawRect(int x, int y, int w, int h, bool fill)
{
Rectangle rect = new Rectangle();
rect.Stroke = Brush;
rect.StrokeThickness = 1;
rect.SnapsToDevicePixels = true;
if(fill)
{
rect.Fill = Brush;
}
rect.Width = w;
rect.Height = h;
SetLeft(rect, x);
SetTop(rect, y);
Children.Add(rect);
}
}
}