32
33 TransformingPathConsumer2D() {
34 // used by RendererContext
35 }
36
37 // recycled PathConsumer2D instances from deltaTransformConsumer()
38 private final DeltaScaleFilter dt_DeltaScaleFilter = new DeltaScaleFilter();
39 private final DeltaTransformFilter dt_DeltaTransformFilter = new DeltaTransformFilter();
40
41 public PathConsumer2D deltaTransformConsumer(PathConsumer2D out,
42 BaseTransform at)
43 {
44 if (at == null) {
45 return out;
46 }
47 float mxx = (float) at.getMxx();
48 float mxy = (float) at.getMxy();
49 float myx = (float) at.getMyx();
50 float myy = (float) at.getMyy();
51
52 if (mxy == 0f && myx == 0f) {
53 if (mxx == 1f && myy == 1f) {
54 return out;
55 } else {
56 return dt_DeltaScaleFilter.init(out, mxx, myy);
57 }
58 } else {
59 return dt_DeltaTransformFilter.init(out, mxx, mxy, myx, myy);
60 }
61 }
62
63 // recycled PathConsumer2D instances from inverseDeltaTransformConsumer()
64 private final DeltaScaleFilter iv_DeltaScaleFilter = new DeltaScaleFilter();
65 private final DeltaTransformFilter iv_DeltaTransformFilter = new DeltaTransformFilter();
66
67 public PathConsumer2D inverseDeltaTransformConsumer(PathConsumer2D out,
68 BaseTransform at)
69 {
70 if (at == null) {
71 return out;
72 }
73 float mxx = (float) at.getMxx();
74 float mxy = (float) at.getMxy();
75 float myx = (float) at.getMyx();
76 float myy = (float) at.getMyy();
77
78 if (mxy == 0f && myx == 0f) {
79 if (mxx == 1f && myy == 1f) {
80 return out;
81 } else {
82 return iv_DeltaScaleFilter.init(out, 1.0f/mxx, 1.0f/myy);
83 }
84 } else {
85 float det = mxx * myy - mxy * myx;
86 return iv_DeltaTransformFilter.init(out,
87 myy / det,
88 -mxy / det,
89 -myx / det,
90 mxx / det);
91 }
92 }
93
94
95 static final class DeltaScaleFilter implements PathConsumer2D {
96 private PathConsumer2D out;
97 private float sx, sy;
98
99 DeltaScaleFilter() {}
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32
33 TransformingPathConsumer2D() {
34 // used by RendererContext
35 }
36
37 // recycled PathConsumer2D instances from deltaTransformConsumer()
38 private final DeltaScaleFilter dt_DeltaScaleFilter = new DeltaScaleFilter();
39 private final DeltaTransformFilter dt_DeltaTransformFilter = new DeltaTransformFilter();
40
41 public PathConsumer2D deltaTransformConsumer(PathConsumer2D out,
42 BaseTransform at)
43 {
44 if (at == null) {
45 return out;
46 }
47 float mxx = (float) at.getMxx();
48 float mxy = (float) at.getMxy();
49 float myx = (float) at.getMyx();
50 float myy = (float) at.getMyy();
51
52 if (mxy == 0.0f && myx == 0.0f) {
53 if (mxx == 1.0f && myy == 1.0f) {
54 return out;
55 } else {
56 return dt_DeltaScaleFilter.init(out, mxx, myy);
57 }
58 } else {
59 return dt_DeltaTransformFilter.init(out, mxx, mxy, myx, myy);
60 }
61 }
62
63 // recycled PathConsumer2D instances from inverseDeltaTransformConsumer()
64 private final DeltaScaleFilter iv_DeltaScaleFilter = new DeltaScaleFilter();
65 private final DeltaTransformFilter iv_DeltaTransformFilter = new DeltaTransformFilter();
66
67 public PathConsumer2D inverseDeltaTransformConsumer(PathConsumer2D out,
68 BaseTransform at)
69 {
70 if (at == null) {
71 return out;
72 }
73 float mxx = (float) at.getMxx();
74 float mxy = (float) at.getMxy();
75 float myx = (float) at.getMyx();
76 float myy = (float) at.getMyy();
77
78 if (mxy == 0.0f && myx == 0.0f) {
79 if (mxx == 1.0f && myy == 1.0f) {
80 return out;
81 } else {
82 return iv_DeltaScaleFilter.init(out, 1.0f/mxx, 1.0f/myy);
83 }
84 } else {
85 float det = mxx * myy - mxy * myx;
86 return iv_DeltaTransformFilter.init(out,
87 myy / det,
88 -mxy / det,
89 -myx / det,
90 mxx / det);
91 }
92 }
93
94
95 static final class DeltaScaleFilter implements PathConsumer2D {
96 private PathConsumer2D out;
97 private float sx, sy;
98
99 DeltaScaleFilter() {}
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