Matrix - 2D (possibly virtual) array interface [1033111]

< > BotCompany Repo | #1033111 // Matrix - 2D (possibly virtual) array interface

JavaX fragment (include) [tags: use-pretranspiled]

interface Matrix<A> extends WidthAndHeight {
  public A get(int x, int y);
  public void set(int x, int y, A a);
  
  default Pt size() { ret pt(getWidth(), getHeight()); }
  default int nCells() { ret getWidth()*getHeight(); }
  
  default A get(Pt p) { ret get(p.x, p.y); }
  default void set aka put(Pt p, A a) { set(p.x, p.y, a); }
  
  // one row of the matrix as a virtual list (mutable)
  default L<A> getLine(int y) {
    ret new RandomAccessAbstractList<A>() {
      public int size() { ret getWidth(); }
      
      public A get(int x) {
        ret Matrix.this.get(x, y);
      }
      
      public A set(int x, A val) {
        A old = Matrix.this.get(x, y);
        Matrix.this.set(x, y, val);
        ret old;
      }
    };
  }
}

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Snippet ID:

#1033111

Snippet name:

Matrix - 2D (possibly virtual) array interface

Eternal ID of this version:

#1033111/12

Text MD5:

5825f3e3da3deef2c0ab1944a4bafffe

Transpilation MD5:

e07bf9162ef32bf6c36e02d5737b9dfa

Author:

stefan

Category:

javax

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2022-04-20 20:20:03

Source code size:

772 bytes / 27 lines

Pitched / IR pitched:

No / No

Views / Downloads:

226 / 398

Version history:

11 change(s)

Referenced in:

[show references]

1	interface Matrix<A> extends WidthAndHeight {
2	public A get(int x, int y);
3	public void set(int x, int y, A a);
4
5	default Pt size() { ret pt(getWidth(), getHeight()); }
6	default int nCells() { ret getWidth()*getHeight(); }
7
8	default A get(Pt p) { ret get(p.x, p.y); }
9	default void set aka put(Pt p, A a) { set(p.x, p.y, a); }
10
11	// one row of the matrix as a virtual list (mutable)
12	default L<A> getLine(int y) {
13	ret new RandomAccessAbstractList<A>() {
14	public int size() { ret getWidth(); }
15
16	public A get(int x) {
17	ret Matrix.this.get(x, y);
18	}
19
20	public A set(int x, A val) {
21	A old = Matrix.this.get(x, y);
22	Matrix.this.set(x, y, val);
23	ret old;
24	}
25	};
26	}
27	}