78 lines
2.1 KiB
C#
78 lines
2.1 KiB
C#
using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
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namespace DrawFigureLibrary
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{
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public abstract class Figure
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{
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public string? Name { get; }
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public int x;
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public int y;
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public int w;
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public int h;
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public Figure(string name, int x, int y, int w, int h)
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{
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this.Name = name;
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this.x = x;
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this.y = y;
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this.w = w;
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this.h = h;
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}
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public abstract void Draw(DrawingContext ctx);
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public abstract void MoveBy(int dX, int dY);
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public override string ToString() => Name ?? "";
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public static bool Check(Figure fig, int dX, int dY, Image img)
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{
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long nx = (long)fig.x + dX;
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long ny = (long)fig.y + dY;
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long nr = nx + fig.w;
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long nb = ny + fig.h;
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return nx >= 0 &&
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ny >= 0 &&
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nr <= (long)img.ActualWidth &&
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nb <= (long)img.ActualHeight;
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}
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public virtual bool HitTest(Point p) => p.X >= x && p.X <= x + w && p.Y >= y && p.Y <= y + h;
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public virtual bool MoveByChecked(int dX, int dY)
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{
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if (Init.DrawingImage == null) return false;
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if (!Check(this, dX, dY, Init.DrawingImage)) return false;
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MoveBy(dX, dY);
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return true;
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}
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public virtual void ResizeTo(int newW, int newH)
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{
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if (newW <= 0 || newH <= 0) throw new ArgumentException("Размеры должны быть > 0");
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w = newW;
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h = newH;
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}
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public virtual bool ResizeToChecked(int newW, int newH)
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{
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if (Init.DrawingImage == null) return false;
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if (newW <= 0 || newH <= 0) return false;
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long nr = (long)x + newW;
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long nb = (long)y + newH;
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if (x < 0 || y < 0) return false;
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if (nr > (long)Init.DrawingImage.ActualWidth) return false;
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if (nb > (long)Init.DrawingImage.ActualHeight) return false;
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ResizeTo(newW, newH);
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return true;
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}
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}
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} |