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1 // Copyright (C) 2010, 2011, 2012, 2013 GlavSoft LLC.
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2 // All rights reserved.
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3 //
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4 //-------------------------------------------------------------------------
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5 // This file is part of the TightVNC software. Please visit our Web site:
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6 //
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7 // http://www.tightvnc.com/
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8 //
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9 // This program is free software; you can redistribute it and/or modify
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10 // it under the terms of the GNU General Public License as published by
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11 // the Free Software Foundation; either version 2 of the License, or
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12 // (at your option) any later version.
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13 //
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14 // This program is distributed in the hope that it will be useful,
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15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 // GNU General Public License for more details.
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18 //
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19 // You should have received a copy of the GNU General Public License along
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20 // with this program; if not, write to the Free Software Foundation, Inc.,
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21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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22 //-------------------------------------------------------------------------
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23 //
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24
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25 package com.glavsoft.drawing;
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26
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27 /**
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28 * Abstract class for operations with soft cursor positions, dimensions and
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29 * hot point position.
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30 */
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31 public abstract class SoftCursor {
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32
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33 protected int hotX, hotY;
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34 private int x, y;
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35 public int width, height;
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36 public int rX, rY;
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37 public int oldRX, oldRY;
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38 public int oldWidth, oldHeight;
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39 private final Object lock = new Object();
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40
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41 public SoftCursor(int hotX, int hotY, int width, int height) {
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42 this.hotX = hotX;
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43 this.hotY = hotY;
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44 oldWidth = this.width = width;
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45 oldHeight = this.height = height;
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46 oldRX = rX = 0;
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47 oldRY = rY = 0;
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48 }
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49
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50 /**
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51 * Update cursor position
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52 *
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53 * @param newX
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54 * @param newY
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55 */
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56 public void updatePosition(int newX, int newY) {
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57 oldRX = rX; oldRY = rY;
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58 oldWidth = width; oldHeight = height;
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59 x = newX; y = newY;
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60 rX = x - hotX; rY = y - hotY;
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61 }
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62
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63 /**
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64 * Set new cursor dimensions and hot point position
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65 *
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66 * @param hotX
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67 * @param hotY
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68 * @param width
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69 * @param height
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70 */
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71 public void setNewDimensions(int hotX, int hotY, int width, int height) {
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72 this.hotX = hotX;
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73 this.hotY = hotY;
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74 oldWidth = this.width;
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75 oldHeight = this.height;
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76 oldRX = rX; oldRY = rY;
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77 rX = x - hotX; rY = y - hotY;
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78 this.width = width;
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79 this.height = height;
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80 }
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81
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82 public void createCursor(int[] cursorPixels, int hotX, int hotY, int width, int height) {
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83 createNewCursorImage(cursorPixels, hotX, hotY, width, height);
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84 setNewDimensions(hotX, hotY, width, height);
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85 }
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86
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87 protected abstract void createNewCursorImage(int[] cursorPixels, int hotX, int hotY, int width, int height);
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88
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89 public Object getLock() {
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90 return lock;
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91 }
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92 } |
