Java Graphics Draw drawIcon(Graphics g, String icon, int x, int y)

Description

draw Icon

License

Open Source License

Declaration

public static void drawIcon(Graphics g, String icon, int x, int y) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.awt.Color;

import java.awt.Font;
import java.awt.Graphics;

public class Main {
    public static void drawIcon(Graphics g, String icon, int x, int y) {
        if (g == null) {
            return;
        }/*from  w  w  w . j ava  2s.c om*/
        int length = icon.length();
        int x1, y1, x2, y2;
        int pc = 0;
        while (true) {
            char command = icon.charAt(pc++);
            if (pc >= length) {
                break;
            }
            switch (command) {
            case 'B':
                x += v(pc++, icon);
                y += v(pc++, icon);
                break; // reset base
            case 'R':
                g.drawRect(x + v(pc++, icon), y + v(pc++, icon), v(pc++, icon), v(pc++, icon));
                break; // rectangle
            case 'F':
                g.fillRect(x + v(pc++, icon), y + v(pc++, icon), v(pc++, icon), v(pc++, icon));
                break; // filled rectangle
            case 'O':
                g.drawOval(x + v(pc++, icon), y + v(pc++, icon), v(pc++, icon), v(pc++, icon));
                break; // oval
            case 'o':
                g.fillOval(x + v(pc++, icon), y + v(pc++, icon), v(pc++, icon), v(pc++, icon));
                break; // filled oval
            case 'C':
                g.setColor(new Color(v(pc++, icon) * 16, v(pc++, icon) * 16, v(pc++, icon) * 16));
                break; // set color
            case 'L':
                g.drawLine(x + v(pc++, icon), y + v(pc++, icon), x + v(pc++, icon), y + v(pc++, icon));
                break; // line
            case 'D':
                g.fillRect(x + v(pc++, icon), y + v(pc++, icon), 1, 1);
                break; // dot
            case 'P': // polyline
                x1 = x + v(pc++, icon);
                y1 = y + v(pc++, icon);
                while (true) {
                    x2 = v(pc++, icon);
                    if (x2 == 0) {
                        break;
                    }
                    y2 = v(pc++, icon);
                    if (y2 == 0) {
                        break;
                    }
                    x2 += x;
                    y2 += y;
                    g.drawLine(x1, y1, x2, y2);
                    x1 = x2;
                    y1 = y2;
                }
                break;
            case 'T': // text (one character)
                x2 = x + v(pc++, icon);
                y2 = y + v(pc++, icon);
                int size = v(pc++, icon) * 10 + v(pc++, icon);
                char[] c = new char[1];
                c[0] = pc < icon.length() ? icon.charAt(pc++) : 'e';
                g.setFont(new Font("SansSerif", Font.BOLD, size));
                g.drawString(new String(c), x2, y2);
                break;
            default:
                break;
            }
            if (pc >= length) {
                break;
            }
        }
    }

    private static int v(int pc, String icon) {
        if (pc >= icon.length()) {
            return 0;
        }
        char c = icon.charAt(pc);
        switch (c) {
        case '0':
            return 0;
        case '1':
            return 1;
        case '2':
            return 2;
        case '3':
            return 3;
        case '4':
            return 4;
        case '5':
            return 5;
        case '6':
            return 6;
        case '7':
            return 7;
        case '8':
            return 8;
        case '9':
            return 9;
        case 'a':
            return 10;
        case 'b':
            return 11;
        case 'c':
            return 12;
        case 'd':
            return 13;
        case 'e':
            return 14;
        case 'f':
            return 15;
        default:
            return 0;
        }
    }
}

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