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- /*
- * AnimationUtility.java
- *
- * Copyright 2011 Thomas Buck <xythobuz@me.com>
- * Copyright 2011 Max Nuding <max.nuding@gmail.com>
- * Copyright 2011 Felix Bäder <baeder.felix@gmail.com>
- *
- * This file is part of LED-Cube.
- *
- * LED-Cube is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LED-Cube is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LED-Cube. If not, see <http://www.gnu.org/licenses/>.
- */
-
- import java.io.FileWriter;
- import java.io.File;
- import java.util.Scanner;
- import java.io.IOException;
- import java.util.ArrayList;
- import java.util.List;
-
- /**
- * A helper class that loads animations from a file or saves them to one.
- * @author Thomas Buck
- * @author Max Nuding
- * @author Felix Bäder
- * @version 1.0
- */
-
- public class AnimationUtility {
- private static String lastError = null;
-
- /**
- * Read a file, return ArrayList with all animations in the file.
- * @param path Path of file
- * @return Populated ArrayList
- * @throws Excpetion When something goes wrong with the Scanner...
- */
- public static List<Animation> readFile(String path) throws Exception {
- Scanner sc = new Scanner(new File(path));
- List<Animation> animations = new ArrayList<Animation>();
- do {
- Animation tmp = readAnimation(sc);
- if (tmp == null) {
- return animations;
- }
- if (sc.hasNextLine()) {
- sc.nextLine();
- }
- animations.add(tmp);
- } while (sc.hasNextLine());
-
- return animations;
- }
-
- /**
- * Write a file with all Animations of an ArrayList
- * @param path Path to write to
- * @param animations ArrayList with all animations to be saved
- * @see AnimationUtility#getLastError() getLastError()
- */
- public static void writeFile(String path, List<Animation> animations) {
- File f = new File(path);
- if (f.exists()) {
- try {
- f.delete();
- } catch (Exception e) {
- lastError = e.toString();
- return;
- }
- }
- FileWriter output = null;
- try {
- output = new FileWriter(f);
- for (int i = 0; i < animations.size(); i++) {
- writeAnimation(animations.get(i), output, (i == (animations.size() - 1)));
- }
- } catch (Exception e) {
- lastError = e.toString();
- return;
- } finally {
- if (output != null) {
- try {
- output.close();
- } catch (Exception e) {
- lastError = e.toString();
- }
- }
- }
-
- }
-
- /**
- * Get the last error that occured while writing
- * @return Text of the exception that occured
- * @see AnimationUtility#writeFile(String, ArrayList) writeFile()
- */
- public static String getLastError() {
- String tmp = lastError;
- lastError = null;
- return tmp;
- }
-
- private static Animation readAnimation(Scanner sc) {
- Animation anim = new Animation();
- AFrame f = null;
- int index = 0;
- String tmpSize = sc.nextLine().replaceAll("\\n", "");
- if (tmpSize.equals("")) {
- return null;
- }
- Integer tmpSizeAgain = new Integer(tmpSize);
- int size = tmpSizeAgain.intValue();
- anim.setName(sc.nextLine());
- while (size > 0) {
- f = readFrame(sc, index);
- anim.add(index, f);
- index++;
- size--;
- }
- return anim;
- }
-
- private static AFrame readFrame(Scanner sc, int index) {
- AFrame frame = new AFrame();
- frame.setName(sc.nextLine());
- short[] d = {};
- for (int i = 0; i < 8; i++) {
- short[] data = hexConvert(sc.nextLine());
- d = concat(d, data);
- }
-
- frame.setData(d);
- d = hexConvert(sc.nextLine());
- frame.setTime(d[0]);
- return frame;
- }
-
- /*private static short[] invert(short[] a){
- short[] tmp = new short[a.length];
- int j = 0;
- for(int i = a.length-1; i >= 0; i--){
- tmp[j] = a[i];
- j++;
- }
- return tmp;
- }*/
-
- private static short[] concat(short[] a, short[] b) {
- short[] c = new short[a.length + b.length];
- System.arraycopy(a, 0, c, 0, a.length);
- System.arraycopy(b, 0, c, a.length, b.length);
- return c;
- }
-
- private static short[] hexConvert(String hex) {
- hex = hex.replaceAll("\\n", "");
-
- short[] tmp = new short[hex.length()/2];
- for (int i = 0; i < hex.length(); i=i+2){
- char[] tmpString = new char[2];
- tmpString[0] = hex.charAt(i);
- tmpString[1] = hex.charAt(i+1);
- String tmpS = String.copyValueOf(tmpString);
- if(i == 0){
- tmp[0] = Short.parseShort(tmpS, 16);
- } else {
- tmp[i/2] = Short.parseShort(tmpS, 16);
- }
-
- }
- return tmp;
-
-
- }
-
- private static void writeAnimation(Animation anim, FileWriter f, boolean last) throws IOException {
- f.write(anim.size() + "\n");
- f.write(anim.getName() + "\n");
- for (int i = 0; i < anim.size(); i++) {
- writeFrame(anim.get(i), f);
- }
- if (!last) {
- f.write("\n");
- }
- }
-
- private static void writeFrame(AFrame fr, FileWriter f) throws IOException {
- f.write(fr.getName() + "\n");
- for (int i = 0; i < 8; i++) {
- writeLayer(fr.getLayer(i), f);
- }
- f.write(Integer.toString( (fr.getTime() & 0xff) + 0x100, 16).substring(1) + "\n");
- }
-
- private static void writeLayer(short[] l, FileWriter f) throws IOException {
- String hex = "";
- for (int i = 0; i < l.length; i++) {
- hex += Integer.toString( (l[i] & 0xff) + 0x100, 16).substring(1);
- }
- hex += "\n";
-
- f.write(hex);
- }
- }
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