ShadowMatrix.java revision 99fafb79bf98b7aa1946bbda1f0a225cefa2d35d 
1package com.xtremelabs.robolectric.shadows;
2
3import android.graphics.Matrix;
4import com.xtremelabs.robolectric.internal.Implementation;
5import com.xtremelabs.robolectric.internal.Implements;
6
7import static com.xtremelabs.robolectric.Robolectric.shadowOf;
8
9@SuppressWarnings({"UnusedDeclaration"})
10@Implements(Matrix.class)
11public class ShadowMatrix {
12    private float scaleX = 1;
13    private float transX;
14
15    private float scaleY = 1;
16    private float transY;
17
18    // scaleX=0, skewX=1,  transX=2
19    // skewY=3,  scaleY=4, transY=5
20    // persp0=6, persp1=7, persp2=8
21
22    // identity: Matrix{[1.0, 0.0, 0.0][0.0, 1.0, 0.0][0.0, 0.0, 1.0]}
23
24    // drag down: Matrix{[1.0, 0.0, -1.3872986][0.0, 1.0, 0.37722778][0.0, 0.0, 1.0]}
25
26
27    public void __constructor__(Matrix src) {
28        set(src);
29    }
30
31    @Implementation
32    public void set(Matrix src) {
33        transX = shadowOf(src).transX;
34        scaleX = shadowOf(src).scaleX;
35
36        transY = shadowOf(src).transY;
37        scaleY = shadowOf(src).scaleY;
38    }
39
40    @Implementation
41    public void setTranslate(float dx, float dy) {
42        transX = dx;
43        transY = dy;
44    }
45
46    @Implementation
47    public void postTranslate(float dx, float dy) {
48        transX += dx;
49        transY += dy;
50    }
51
52    public float getTransX() {
53        return transX;
54    }
55
56    public float getTransY() {
57        return transY;
58    }
59
60    @Implementation
61    public boolean postScale(float sx, float sy, float px, float py) {
62        scaleX *= sx;
63        scaleY *= sy;
64        return true;
65    }
66
67    public float getScaleX() {
68        return scaleX;
69    }
70
71    public float getScaleY() {
72        return scaleY;
73    }
74}
75