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25 
26 package sun.java2d.pipe;
27 
28 import java.awt.Rectangle;
29 import java.awt.Shape;
30 import java.awt.geom.Arc2D;
31 import java.awt.geom.Ellipse2D;
32 import java.awt.geom.Line2D;
33 import java.awt.geom.RoundRectangle2D;
34 import java.awt.geom.GeneralPath;
35 import sun.java2d.SunGraphics2D;
36 
37 /**
38  * This class converts calls to the basic pixel rendering methods
39  * into calls to a generic Shape rendering pipeline.
40  */
41 public class PixelToShapeConverter
42     implements PixelDrawPipe, PixelFillPipe
43 {
44     ShapeDrawPipe outpipe;
45 
PixelToShapeConverter(ShapeDrawPipe pipe)46     public PixelToShapeConverter(ShapeDrawPipe pipe) {
47         outpipe = pipe;
48     }
49 
drawLine(SunGraphics2D sg, int x1, int y1, int x2, int y2)50     public void drawLine(SunGraphics2D sg,
51                          int x1, int y1, int x2, int y2) {
52         outpipe.draw(sg, new Line2D.Float(x1, y1, x2, y2));
53     }
54 
drawRect(SunGraphics2D sg, int x, int y, int w, int h)55     public void drawRect(SunGraphics2D sg,
56                          int x, int y, int w, int h) {
57         outpipe.draw(sg, new Rectangle(x, y, w, h));
58     }
59 
fillRect(SunGraphics2D sg, int x, int y, int w, int h)60     public void fillRect(SunGraphics2D sg,
61                          int x, int y, int w, int h) {
62         outpipe.fill(sg, new Rectangle(x, y, w, h));
63     }
64 
drawRoundRect(SunGraphics2D sg, int x, int y, int w, int h, int aW, int aH)65     public void drawRoundRect(SunGraphics2D sg,
66                               int x, int y, int w, int h,
67                               int aW, int aH) {
68         outpipe.draw(sg, new RoundRectangle2D.Float(x, y, w, h, aW, aH));
69     }
70 
fillRoundRect(SunGraphics2D sg, int x, int y, int w, int h, int aW, int aH)71     public void fillRoundRect(SunGraphics2D sg,
72                               int x, int y, int w, int h,
73                               int aW, int aH) {
74         outpipe.fill(sg, new RoundRectangle2D.Float(x, y, w, h, aW, aH));
75     }
76 
drawOval(SunGraphics2D sg, int x, int y, int w, int h)77     public void drawOval(SunGraphics2D sg,
78                          int x, int y, int w, int h) {
79         outpipe.draw(sg, new Ellipse2D.Float(x, y, w, h));
80     }
81 
fillOval(SunGraphics2D sg, int x, int y, int w, int h)82     public void fillOval(SunGraphics2D sg,
83                          int x, int y, int w, int h) {
84         outpipe.fill(sg, new Ellipse2D.Float(x, y, w, h));
85     }
86 
drawArc(SunGraphics2D sg, int x, int y, int w, int h, int start, int extent)87     public void drawArc(SunGraphics2D sg,
88                         int x, int y, int w, int h,
89                         int start, int extent) {
90         outpipe.draw(sg, new Arc2D.Float(x, y, w, h,
91                                          start, extent, Arc2D.OPEN));
92     }
93 
fillArc(SunGraphics2D sg, int x, int y, int w, int h, int start, int extent)94     public void fillArc(SunGraphics2D sg,
95                         int x, int y, int w, int h,
96                         int start, int extent) {
97         outpipe.fill(sg, new Arc2D.Float(x, y, w, h,
98                                          start, extent, Arc2D.PIE));
99     }
100 
makePoly(int xPoints[], int yPoints[], int nPoints, boolean close)101     private Shape makePoly(int xPoints[], int yPoints[],
102                            int nPoints, boolean close) {
103         GeneralPath gp = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
104         if (nPoints > 0) {
105             gp.moveTo(xPoints[0], yPoints[0]);
106             for (int i = 1; i < nPoints; i++) {
107                 gp.lineTo(xPoints[i], yPoints[i]);
108             }
109             if (close) {
110                 gp.closePath();
111             }
112         }
113         return gp;
114     }
115 
drawPolyline(SunGraphics2D sg, int xPoints[], int yPoints[], int nPoints)116     public void drawPolyline(SunGraphics2D sg,
117                              int xPoints[], int yPoints[],
118                              int nPoints) {
119         outpipe.draw(sg, makePoly(xPoints, yPoints, nPoints, false));
120     }
121 
drawPolygon(SunGraphics2D sg, int xPoints[], int yPoints[], int nPoints)122     public void drawPolygon(SunGraphics2D sg,
123                             int xPoints[], int yPoints[],
124                             int nPoints) {
125         outpipe.draw(sg, makePoly(xPoints, yPoints, nPoints, true));
126     }
127 
fillPolygon(SunGraphics2D sg, int xPoints[], int yPoints[], int nPoints)128     public void fillPolygon(SunGraphics2D sg,
129                             int xPoints[], int yPoints[],
130                             int nPoints) {
131         outpipe.fill(sg, makePoly(xPoints, yPoints, nPoints, true));
132     }
133 }
134