// SHAPE AND BOUNDS @Override public void transform(AffineTransform tx) { tx.transform(origin, origin); }
public static AffineTransform getTransform(String str) throws IOException { AffineTransform t = new AffineTransform(); if (str != null) { StreamTokenizer tt = new StreamTokenizer(new StringReader(str)); tt.resetSyntax(); tt.wordChars('a', 'z'); tt.wordChars('A', 'Z'); tt.wordChars(128 + 32, 255); tt.whitespaceChars(0, ' '); tt.whitespaceChars(',', ','); tt.parseNumbers(); while (tt.nextToken() != StreamTokenizer.TT_EOF) { if (tt.ttype != StreamTokenizer.TT_WORD) { throw new IOException("Illegal transform " + str); } String type = tt.sval; if (tt.nextToken() != '(') { throw new IOException("'(' not found in transform " + str); } if (type.equals("matrix")) { double[] m = new double[6]; for (int i = 0; i < 6; i++) { if (tt.nextToken() != StreamTokenizer.TT_NUMBER) { throw new IOException( "Matrix value " + i + " not found in transform " + str + " token:" + tt.ttype + " " + tt.sval); } if (tt.nextToken() == StreamTokenizer.TT_WORD && tt.sval.startsWith("E")) { double mantissa = tt.nval; tt.nval = Double.valueOf(tt.nval + tt.sval); } else { tt.pushBack(); } m[i] = tt.nval; } t.concatenate(new AffineTransform(m)); } else if (type.equals("translate")) { double tx, ty; if (tt.nextToken() != StreamTokenizer.TT_NUMBER) { throw new IOException("X-translation value not found in transform " + str); } tx = tt.nval; if (tt.nextToken() == StreamTokenizer.TT_NUMBER) { ty = tt.nval; } else { tt.pushBack(); ty = 0; } t.translate(tx, ty); } else if (type.equals("scale")) { double sx, sy; if (tt.nextToken() != StreamTokenizer.TT_NUMBER) { throw new IOException("X-scale value not found in transform " + str); } sx = tt.nval; if (tt.nextToken() == StreamTokenizer.TT_NUMBER) { sy = tt.nval; } else { tt.pushBack(); sy = sx; } t.scale(sx, sy); } else if (type.equals("rotate")) { double angle, cx, cy; if (tt.nextToken() != StreamTokenizer.TT_NUMBER) { throw new IOException("Angle value not found in transform " + str); } angle = tt.nval; if (tt.nextToken() == StreamTokenizer.TT_NUMBER) { cx = tt.nval; if (tt.nextToken() != StreamTokenizer.TT_NUMBER) { throw new IOException("Y-center value not found in transform " + str); } cy = tt.nval; } else { tt.pushBack(); cx = cy = 0; } t.rotate(angle * Math.PI / 180d, cx * Math.PI / 180d, cy * Math.PI / 180d); } else if (type.equals("skewX")) { double angle; if (tt.nextToken() != StreamTokenizer.TT_NUMBER) { throw new IOException("Skew angle not found in transform " + str); } angle = tt.nval; t.concatenate(new AffineTransform(1, 0, Math.tan(angle * Math.PI / 180), 1, 0, 0)); } else if (type.equals("skewY")) { double angle; if (tt.nextToken() != StreamTokenizer.TT_NUMBER) { throw new IOException("Skew angle not found in transform " + str); } angle = tt.nval; t.concatenate(new AffineTransform(1, Math.tan(angle * Math.PI / 180), 0, 1, 0, 0)); } else { throw new IOException("Unknown transform " + type + " in " + str); } if (tt.nextToken() != ')') { throw new IOException("')' not found in transform " + str); } } } return t; }