assistkey/play/graphics/Render.java

play/graphics/Render.java (3298 bytes)
1 import java.awt.BasicStroke;
2 import java.awt.Color;
3 import java.awt.Font;
4 import java.awt.Graphics2D;
5 import java.awt.RenderingHints;
6 import java.awt.geom.Area;
7 import java.awt.geom.Ellipse2D;
8 import java.awt.geom.Rectangle2D;
9 import java.awt.image.BufferedImage;
10 import java.io.File;
11 import javax.imageio.ImageIO;
12 
13 /**
14  * Renders the Play Store icon and feature graphic from the same geometry as
15  * res/drawable/ic_launcher_foreground.xml, so the store and the launcher agree.
16  *
17  *   java Render.java          (run from this directory; JDK 11+)
18  */
19 public class Render {
20 
21     static final Color INK = new Color(0x11, 0x11, 0x11);
22 
23     /** The launcher glyph, drawn in its own 108-unit viewport. */
24     static void glyph(Graphics2D g, double x, double y, double size) {
25         Graphics2D c = (Graphics2D) g.create();
26         c.translate(x, y);
27         c.scale(size / 108.0, size / 108.0);
28         c.setColor(INK);
29 
30         Area ring = new Area(new Ellipse2D.Double(30, 30, 48, 48));
31         ring.subtract(new Area(new Ellipse2D.Double(38, 38, 32, 32)));
32         c.fill(ring);
33         c.fill(new Rectangle2D.Double(50, 46, 8, 16));
34         c.fill(new Rectangle2D.Double(30, 50, 6, 8));
35         c.fill(new Rectangle2D.Double(22, 50, 4, 8));
36         c.fill(new Rectangle2D.Double(72, 50, 6, 8));
37         c.fill(new Rectangle2D.Double(82, 50, 4, 8));
38         c.dispose();
39     }
40 
41     static Graphics2D canvas(BufferedImage img) {
42         Graphics2D g = img.createGraphics();
43         g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
44         g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
45         g.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
46         g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
47         g.setColor(Color.WHITE);
48         g.fillRect(0, 0, img.getWidth(), img.getHeight());
49         return g;
50     }
51 
52     public static void main(String[] a) throws Exception {
53         // Icon: Play applies its own rounded mask, so this is full-bleed white
54         // with the glyph enlarged to sit inside the safe zone.
55         BufferedImage icon = new BufferedImage(512, 512, BufferedImage.TYPE_INT_ARGB);
56         Graphics2D g = canvas(icon);
57         glyph(g, -96, -96, 704);
58         g.dispose();
59         ImageIO.write(icon, "png", new File("icon-512.png"));
60 
61         // Feature graphic: e-ink plain. Glyph left, name and promise right.
62         BufferedImage f = new BufferedImage(1024, 500, BufferedImage.TYPE_INT_RGB);
63         g = canvas(f);
64         glyph(g, -40, -55, 610);
65         g.setColor(INK);
66         g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 92));
67         g.drawString("AssistKey", 500, 232);
68         g.setFont(new Font(Font.SANS_SERIF, Font.PLAIN, 34));
69         g.setColor(new Color(0x44, 0x44, 0x44));
70         g.drawString("Remap every hardware key", 504, 296);
71         g.drawString("on your Viwoods AiPaper", 504, 342);
72         g.setColor(INK);
73         g.setStroke(new BasicStroke(3f));
74         g.drawLine(504, 256, 584, 256);
75         g.dispose();
76         ImageIO.write(f, "png", new File("feature-1024x500.png"));
77 
78         System.out.println("wrote icon-512.png and feature-1024x500.png");
79     }
80 }