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1: /* IIOReadUpdateListener.java -- 2: Copyright (C) 2004 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package javax.imageio.event; 40: 41: import java.awt.image.BufferedImage; 42: import java.util.EventListener; 43: 44: import javax.imageio.ImageReader; 45: 46: public interface IIOReadUpdateListener extends EventListener 47: { 48: /** 49: * Reports that a given region of the image has been updated. 50: * 51: * @param source the <code>ImageReader</code> object calling this method 52: * @param image the BufferedImage being updated 53: * @param minX the X coordinate of the leftmost updated column of pixels 54: * @param minY the Y coordinate of the uppermost updated row of pixels 55: * @param width the number of updated pixels horizontally 56: * @param height the number of updated pixels vertically 57: * @param periodX the horizontal spacing between updated pixels; a value of 1 means no gaps 58: * @param periodY the vertical spacing between updated pixels; a value of 1 means no gaps 59: * @param bands an array of <code>int</code>s indicating which bands are being updated 60: */ 61: void imageUpdate(ImageReader source, BufferedImage image, int minX, 62: int minY, int width, int height, int periodX, int periodY, 63: int[] bands); 64: 65: /** 66: * Reports that the current read operation has completed a progressive pass. 67: * 68: * @param source the <code>ImageReader</code> object calling this method 69: * @param image the BufferedImage being updated 70: */ 71: void passComplete(ImageReader source, BufferedImage image); 72: 73: /** 74: * Reports that the current read operation is about to begin a progressive pass. 75: * 76: * @param source the <code>ImageReader</code> object calling this method 77: * @param image the BufferedImage being updated 78: * @param pass the numer of the pass that is about to begin, starting with 0 79: * @param minPass the index of the first pass that will be decoded 80: * @param maxPass the index of the last pass that will be decoded 81: * @param minX the X coordinate of the leftmost updated column of pixels 82: * @param minY the Y coordinate of the uppermost updated row of pixels 83: * @param periodX the horizontal spacing between updated pixels; a value of 1 means no gaps 84: * @param periodY the vertical spacing between updated pixels; a value of 1 means no gaps 85: * @param bands an array of <code>int</code>s indicating which bands are being updated 86: */ 87: void passStarted(ImageReader source, BufferedImage image, int pass, 88: int minPass, int maxPass, int minX, int minY, int periodX, 89: int periodY, int[] bands); 90: 91: /** 92: * Reports that the current thumbnail read operation has completed a progressive pass. 93: * 94: * @param source the <code>ImageReader</code> object calling this method 95: * @param image the BufferedImage being updated 96: */ 97: void thumbnailPassComplete(ImageReader source, BufferedImage image); 98: 99: /** 100: * Reports that the current thumbnail read operation is about to begin a progressive pass. 101: * 102: * @param source the <code>ImageReader</code> object calling this method 103: * @param image the BufferedImage being updated 104: * @param pass the numer of the pass that is about to begin, starting with 0 105: * @param minPass the index of the first pass that will be decoded 106: * @param maxPass the index of the last pass that will be decoded 107: * @param minX the X coordinate of the leftmost updated column of pixels 108: * @param minY the Y coordinate of the uppermost updated row of pixels 109: * @param periodX the horizontal spacing between updated pixels; a value of 1 means no gaps 110: * @param periodY the vertical spacing between updated pixels; a value of 1 means no gaps 111: * @param bands an array of <code>int</code>s indicating which bands are being updated 112: */ 113: void thumbnailPassStarted(ImageReader source, BufferedImage image, int pass, 114: int minPass, int maxPass, int minX, int minY, 115: int periodX, int periodY, int[] bands); 116: 117: /** 118: * Reports that a given region of a thumbnail image has been updated. 119: * 120: * @param source the <code>ImageReader</code> object calling this method 121: * @param image the BufferedImage being updated 122: * @param minX the X coordinate of the leftmost updated column of pixels 123: * @param minY the Y coordinate of the uppermost updated row of pixels 124: * @param width the number of updated pixels horizontally 125: * @param height the number of updated pixels vertically 126: * @param periodX the horizontal spacing between updated pixels; a value of 1 means no gaps 127: * @param periodY the vertical spacing between updated pixels; a value of 1 means no gaps 128: * @param bands an array of <code>int</code>s indicating which bands are being updated 129: */ 130: void thumbnailUpdate(ImageReader source, BufferedImage image, int minX, 131: int minY, int width, int height, int periodX, 132: int periodY, int[] bands); 133: }