/ftr-gwt-library-date/src/main/java/eu/future/earth/gwt/client/date/EventPanel.java
Java | 158 lines | 103 code | 32 blank | 23 comment | 20 complexity | 633e51777a73c86e8b20f6fafc5489ce MD5 | raw file
Possible License(s): Apache-2.0
1/* 2 * Copyright 2007 Future Earth, info@future-earth.eu 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 5 * use this file except in compliance with the License. You may obtain a copy of 6 * the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations under 14 * the License. 15 */ 16 17package eu.future.earth.gwt.client.date; 18 19import java.util.Date; 20 21import com.google.gwt.event.shared.HandlerRegistration; 22import com.google.gwt.user.client.ui.SimplePanel; 23import com.google.gwt.user.client.ui.Widget; 24 25public abstract class EventPanel<T> extends SimplePanel implements HasDateEventHandlers<T>, Comparable<EventPanel<T>> { 26 27 private T value = null; 28 29 private TimeEventRenderer<T> renderer = null; 30 31 @SuppressWarnings("unchecked") 32 protected EventPanel(TimeEventRenderer<? extends T> newRenderer, T newData) { 33 super(); 34 renderer = (TimeEventRenderer<T>) newRenderer; 35 value = newData; 36 } 37 38 public abstract void setContentHeight(int height); 39 40 public abstract int getContentHeight(); 41 42 public abstract void setWidth(int width); 43 44 public int compareTo(EventPanel<T> other) { 45 Date one = getStart(); 46 Date two = other.getStart(); 47 if (one != null) { 48 return one.compareTo(two); 49 } 50 return 0; 51 } 52 53 private String eventStyleName = null; 54 55 public String getEventStyleName() { 56 return eventStyleName; 57 } 58 59 public void setEventStyleName(String eventStyleName) { 60 this.eventStyleName = eventStyleName; 61 } 62 63 public void setStart(Date newStart) { 64 if (value != null) { 65 renderer.setStartTime(value, newStart); 66 } 67 } 68 69 public int getPosY() { 70 return posY; 71 } 72 73 public void setPosY(int posY) { 74 this.posY = posY; 75 } 76 77 private int posY = 0; 78 79 public void setEndTime(Date newEnd) { 80 if (value != null) { 81 renderer.setEndTime(value, newEnd); 82 } 83 } 84 85 public Date getStart() { 86 if (value != null) { 87 return renderer.getStartTime(value); 88 } else { 89 return null; 90 } 91 } 92 93 public Date getEnd() { 94 if (value != null) { 95 return renderer.getEndTime(value); 96 } else { 97 return null; 98 } 99 } 100 101 public T getValue() { 102 return value; 103 } 104 105 public void setValue(T value) { 106 this.value = value; 107 } 108 109 private HandlerRegistration parent = null; 110 111 public void addParentDateEventHandler(DateEventListener<? extends T> handler) { 112 parent = addDateEventHandler(handler); 113 } 114 115 public void clearParent() { 116 if (parent != null) { 117 parent.removeHandler(); 118 } 119 } 120 121 public HandlerRegistration addDateEventHandler(DateEventListener<? extends T> handler) { 122 return addHandler(handler, DateEvent.getType()); 123 } 124 125 /** 126 * Indicates whether some other object is "equal to" this one. 127 * 128 * @param obj 129 * the reference object with which to compare. 130 * @return <code>true</code> if this object is the same as the obj argument; <code>false</code> otherwise. 131 * @todo Implement this java.lang.Object method 132 */ 133 @SuppressWarnings("unchecked") 134 public boolean equals(Object obj) { 135 if (obj instanceof EventPanel<?>) { 136 final EventPanel<? extends T> real = (EventPanel<? extends T>) obj; 137 if (renderer == null) { 138 return value.equals(real.getValue()); 139 } 140 if (renderer.equal(value, real.getValue())) { 141 return true; 142 } 143 } 144 return false; 145 } 146 147 public boolean isDraggable() { 148 if (renderer == null) { 149 return false; 150 } 151 return renderer.enableDragAndDrop(); 152 } 153 154 public abstract void repaintTime(); 155 156 public abstract Widget getDraggableItem(); 157 158}