public void drawDiagonal(int y0, int x0, int len, String direction, char ch) {
if (yoffset != 0) y0 += yoffset;
if (xoffset != 0) x0 += xoffset;
int y1 = y0, x1 = x0;
boolean from = (direction.indexOf('>') >= 0);
Format.printf("from=%l\n", new Parameters(from));
if (direction.indexOf('/') != -1) {
if (from) {
y1 = y0 - len - 1;
x1 = x0 + len - 1;
} else {
y1 = y0 + len - 1;
x1 = x0 - len - 1;
}
} else if (direction.indexOf('\\') != -1) {
if (from) {
y1 = y0 + len - 1;
x1 = x0 + len - 1;
} else {
y1 = y0 - len - 1;
x1 = x0 - len - 1;
}
}
drawLine(y0, x0, y1, x1, ch);
}
private static void test01() throws Exception {
Format.printf("test01...\n");
Parameters p = new Parameters();
TextArea tm = new TextArea();
tm.fill('x');
tm.clearRow(4);
tm.clearColumn(24);
tm.fillColumn(9, '1');
tm.fillColumn(19, '2');
tm.fillColumn(29, '3');
tm.fillColumn(39, '4');
tm.fillColumn(49, '5');
tm.fillColumn(59, '6');
tm.fillColumn(69, '7');
tm.fillColumn(79, '8');
tm.drawLine(11, 4, 50, 22, '.');
tm.drawDiagonal(5, 20, 15, "\\>", '\\');
tm.drawDiagonal(6, 55, 40, "</", '/');
Format.printf("%s", p.add(tm));
}