source: trunk/src/org/expeditee/gio/input/KBMInputEvent.java@ 1097

Last change on this file since 1097 was 1097, checked in by davidb, 6 years ago

Newly structured files from Corey's work on logic/graphics separation
File size: 3.4 KB
Line 
1package org.expeditee.gio.input;
2
3import org.expeditee.core.Line;
4
5public class KBMInputEvent extends InputEvent {
6
7 public enum EventType {
8 MOUSE_BUTTON_DOWN,
9 MOUSE_BUTTON_UP,
10 MOUSE_MOVE,
11 MOUSE_WHEEL_SCROLL,
12 KEY_DOWN,
13 KEY_UP,
14 CHAR_TYPED
15 }
16
17 /**
18 * Enumerates the mouse buttons of interest to Expeditee.
19 */
20 public enum MouseButton {
21 LEFT,
22 MIDDLE,
23 RIGHT
24 }
25
26 /**
27 * Enumerates the keyboard keys of interest to Expeditee.
28 */
29 public enum Key {
30 SHIFT,CTRL,ALT,
31 ESC,
32 F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12,
33 UP_ARROW,DOWN_ARROW,LEFT_ARROW,RIGHT_ARROW,
34 HOME,END,
35 DELETE,
36 PAGE_UP,PAGE_DOWN,
37 BACKSPACE,
38 TAB,
39 A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z
40 }
41
42 private EventType _eventType;
43 private Object _eventData;
44
45 public KBMInputEvent(EventType type, Object data) throws Exception
46 {
47 super(InputEvent.InputType.KBM);
48 _eventType = type;
49 _eventData = data;
50 checkData();
51 }
52
53 public EventType getEventType()
54 {
55 return _eventType;
56 }
57
58 public Object getData()
59 {
60 return _eventData;
61 }
62
63 /** Gets the key that went down if this is a key-down event. */
64 public Key getKeyDown()
65 {
66 if (_eventType == EventType.KEY_DOWN) return (Key) _eventData;
67
68 return null;
69 }
70
71 /** Gets the key that went up if this is a key-up event. */
72 public Key getKeyUp()
73 {
74 if (_eventType == EventType.KEY_UP) return (Key) _eventData;
75
76 return null;
77 }
78
79 /**
80 * Gets the name of the key that was pressed/released.
81 * Returns the empty string if this is not a key event.
82 */
83 public String getKeyText()
84 {
85 Key key = getKeyDown();
86 if (key == null) key = getKeyUp();
87 if (key == null) return "";
88 return key.name();
89 }
90
91 /** Gets the character that was typed if this is a CHAR_TYPED event. */
92 public Character getCharTyped()
93 {
94 if (_eventType == EventType.CHAR_TYPED) return (Character) _eventData;
95
96 return null;
97 }
98
99 /** Gets the mouse button that went down if this is a mouse-button-down event. */
100 public MouseButton getMouseButtonDown()
101 {
102 if (_eventType == EventType.MOUSE_BUTTON_DOWN) return (MouseButton) _eventData;
103
104 return null;
105 }
106
107 /** Gets the mouse button that went up if this is a mouse-button-up event. */
108 public MouseButton getMouseButtonUp()
109 {
110 if (_eventType == EventType.MOUSE_BUTTON_UP) return (MouseButton) _eventData;
111
112 return null;
113 }
114
115 /** Gets the position of the mouse if this is a mouse-move event. */
116 public Line getMouseMove()
117 {
118 if (_eventType == EventType.MOUSE_MOVE) return (Line) _eventData;
119
120 return null;
121 }
122
123 private void checkData() throws Exception
124 {
125 if (_eventType == null) throw new Exception("No event type specified");
126 if (_eventData == null) throw new Exception("No event data specified");
127
128 switch (_eventType) {
129 case MOUSE_BUTTON_DOWN:
130 case MOUSE_BUTTON_UP:
131 if (!(_eventData instanceof MouseButton)) throw new Exception("MouseButton data expected");
132 break;
133 case KEY_DOWN:
134 case KEY_UP:
135 if (!(_eventData instanceof Key)) throw new Exception("Key data expected");
136 break;
137 case CHAR_TYPED:
138 if (!(_eventData instanceof Character)) throw new Exception("Character data expected");
139 break;
140 case MOUSE_MOVE:
141 if (!(_eventData instanceof Line)) throw new Exception("Line data expected");
142 break;
143 case MOUSE_WHEEL_SCROLL:
144 if (!(_eventData instanceof Integer)) throw new Exception("Integer data expected");
145 break;
146 }
147 }
148
149 @Override
150 public String toString()
151 {
152 return _eventType.toString() + " event : Data = " + _eventData.toString();
153 }
154}
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