svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / ExtentHistory.java @ 580
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| 1 | 213 | fernando | /* Generated by Together */
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| 2 | package com.iver.cit.gvsig.fmap; |
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| 4 | 485 | vcaballero | import com.iver.utiles.XMLEntity; |
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| 6 | 213 | fernando | import java.awt.geom.Rectangle2D; |
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| 8 | 449 | vcaballero | |
| 9 | 485 | vcaballero | /**
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| 10 | * DOCUMENT ME!
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| 11 | *
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| 12 | * @author Vicente Caballero Navarro
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| 13 | */
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| 14 | 213 | fernando | public class ExtentHistory { |
| 15 | private int NUMREC; |
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| 16 | private Rectangle2D[] extents; |
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| 17 | private int num = 0; |
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| 18 | |||
| 19 | /**
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| 20 | * Creates a new ExtentsHistory object.
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| 21 | */
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| 22 | public ExtentHistory() {
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| 23 | NUMREC = 4;
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| 24 | extents = new Rectangle2D.Double[NUMREC]; |
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| 25 | } |
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| 26 | |||
| 27 | /**
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| 28 | * Creates a new ExtentsHistory object.
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| 29 | *
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| 30 | * @param numEntries Numero de entradas que se guardan en el historico de
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| 31 | * rect?ngulos, por defecto 20
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| 32 | */
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| 33 | public ExtentHistory(int numEntries) { |
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| 34 | NUMREC = numEntries; |
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| 35 | } |
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| 36 | |||
| 37 | /**
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| 38 | * Pone un nuevo rect?ngulo al final del array
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| 39 | *
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| 40 | * @param ext Rect?ngulo que se a?ade al hist?rico
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| 41 | */
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| 42 | public void put(Rectangle2D.Double ext) { |
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| 43 | if ((ext != null) && ((num < 1) || (ext != extents[num - 1]))) { |
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| 44 | if (num < (NUMREC)) {
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| 45 | extents[num] = ext; |
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| 46 | num = num + 1;
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| 47 | } else {
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| 48 | for (int i = 0; i < (NUMREC - 1); i++) { |
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| 49 | extents[i] = extents[i + 1];
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| 50 | } |
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| 51 | |||
| 52 | extents[num - 1] = ext;
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| 53 | } |
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| 54 | } |
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| 55 | } |
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| 56 | |||
| 57 | /**
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| 58 | * Devuelve true si hay alg?n rect?ngulo en el hist?rico
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| 59 | *
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| 60 | * @return true o false en caso de que haya o no haya rect?ngulos
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| 61 | */
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| 62 | public boolean hasPrevious() { |
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| 63 | return num > 0; |
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| 64 | } |
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| 65 | |||
| 66 | /**
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| 67 | * Obtiene el ?ltimo rect?ngulo que se a?adi? al hist?rico
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| 68 | *
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| 69 | * @return Ultimo rect?ngulo a?adido
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| 70 | */
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| 71 | public Rectangle2D get() { |
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| 72 | Rectangle2D ext = extents[num - 1]; |
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| 73 | |||
| 74 | return ext;
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| 75 | } |
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| 76 | |||
| 77 | /**
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| 78 | * Devuelve el ?ltimo rect?ngulo del hist?rico y lo elimina del mismo
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| 79 | *
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| 80 | * @return Ultimo rect?ngulo a?adido
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| 81 | */
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| 82 | public Rectangle2D removePrev() { |
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| 83 | Rectangle2D ext = extents[num - 1]; |
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| 84 | num = num - 1;
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| 85 | |||
| 86 | return ext;
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| 87 | } |
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| 88 | 485 | vcaballero | |
| 89 | /**
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| 90 | * DOCUMENT ME!
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| 91 | *
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| 92 | * @return DOCUMENT ME!
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| 93 | */
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| 94 | public XMLEntity getXMLEntity() {
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| 95 | XMLEntity xml = new XMLEntity();
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| 96 | xml.putProperty("num", num);
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| 97 | xml.putProperty("numrec", NUMREC);
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| 98 | |||
| 99 | for (int i = 0; i < NUMREC; i++) { |
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| 100 | if (extents[i] != null) { |
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| 101 | xml.putProperty("extent" + i + "X", extents[i].getX()); |
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| 102 | xml.putProperty("extent" + i + "Y", extents[i].getY()); |
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| 103 | xml.putProperty("extent" + i + "W", extents[i].getWidth()); |
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| 104 | xml.putProperty("extent" + i + "H", extents[i].getHeight()); |
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| 105 | } |
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| 106 | } |
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| 107 | |||
| 108 | return xml;
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| 109 | 449 | vcaballero | } |
| 110 | 485 | vcaballero | |
| 111 | /**
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| 112 | * DOCUMENT ME!
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| 113 | *
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| 114 | * @param xml DOCUMENT ME!
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| 115 | *
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| 116 | * @return DOCUMENT ME!
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| 117 | */
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| 118 | public static ExtentHistory createFromXML(XMLEntity xml) { |
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| 119 | ExtentHistory eh = new ExtentHistory();
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| 120 | eh.num = xml.getIntProperty("num");
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| 121 | eh.NUMREC = xml.getIntProperty("numrec");
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| 122 | |||
| 123 | for (int i = 0; i < eh.NUMREC; i++) { |
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| 124 | try {
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| 125 | eh.extents[i].setRect(xml.getDoubleProperty("extent" + i + "X"), |
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| 126 | xml.getDoubleProperty("extent" + i + "Y"), |
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| 127 | xml.getDoubleProperty("extent" + i + "W"), |
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| 128 | xml.getDoubleProperty("extent" + i + "H")); |
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| 129 | } catch (Exception e) { |
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| 130 | System.out.println("En las ExtentHistory =" + e); //TODO o se captura de alguna forma o se mete un nuevo parametro en el xml para saber exactamente cuantos rect?gulos se han a?adido. |
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| 131 | } |
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| 132 | } |
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| 133 | |||
| 134 | return eh;
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| 135 | 449 | vcaballero | } |
| 136 | 213 | fernando | } |