|
f@0
|
1 /*
|
|
f@0
|
2 XYPad - a haptic xy-pad that uses the jHapticGUI library
|
|
f@0
|
3
|
|
f@0
|
4 Copyright (C) 2015 Queen Mary University of London (http://depic.eecs.qmul.ac.uk/)
|
|
f@0
|
5
|
|
f@0
|
6 This program is free software: you can redistribute it and/or modify
|
|
f@0
|
7 it under the terms of the GNU General Public License as published by
|
|
f@0
|
8 the Free Software Foundation, either version 3 of the License, or
|
|
f@0
|
9 (at your option) any later version.
|
|
f@0
|
10
|
|
f@0
|
11 This program is distributed in the hope that it will be useful,
|
|
f@0
|
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
f@0
|
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
f@0
|
14 GNU General Public License for more details.
|
|
f@0
|
15
|
|
f@0
|
16 You should have received a copy of the GNU General Public License
|
|
f@0
|
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
f@0
|
18 */
|
|
f@0
|
19 package uk.ac.qmul.eecs.depic.jhapticgui.examples;
|
|
f@0
|
20
|
|
f@0
|
21 import java.awt.BasicStroke;
|
|
f@0
|
22 import java.awt.Color;
|
|
f@0
|
23 import java.awt.Dimension;
|
|
f@0
|
24 import java.awt.Graphics;
|
|
f@0
|
25 import java.awt.Graphics2D;
|
|
f@0
|
26 import java.awt.RenderingHints;
|
|
f@0
|
27 import java.awt.Stroke;
|
|
f@0
|
28
|
|
f@0
|
29 import javax.swing.JPanel;
|
|
f@0
|
30
|
|
f@0
|
31
|
|
f@0
|
32 /**
|
|
f@0
|
33 *
|
|
f@0
|
34 * A Panel displaying an xy cursor
|
|
f@0
|
35 *
|
|
f@0
|
36 * @author Fiore Martin
|
|
f@0
|
37 *
|
|
f@0
|
38 */
|
|
f@0
|
39 public class XYPanel extends JPanel {
|
|
f@0
|
40 private static final long serialVersionUID = 1L;
|
|
f@0
|
41 private static int CURSOR_SIZE = 20;
|
|
f@0
|
42 private static int HALF_CURSOR_SIZE = CURSOR_SIZE/2;
|
|
f@0
|
43 private static Stroke LINE_STROKE = new BasicStroke(2);
|
|
f@0
|
44 private float cursorX;
|
|
f@0
|
45 private float cursorY;
|
|
f@0
|
46
|
|
f@0
|
47 /**
|
|
f@0
|
48 * Creates a new panel with the cursor placed at the centre
|
|
f@0
|
49 */
|
|
f@0
|
50 public XYPanel() {
|
|
f@0
|
51 cursorX = 0.5f;
|
|
f@0
|
52 cursorY = 0.5f;
|
|
f@0
|
53 }
|
|
f@0
|
54
|
|
f@0
|
55 /**
|
|
f@0
|
56 * {@inheritDoc}
|
|
f@0
|
57 */
|
|
f@0
|
58 @Override
|
|
f@0
|
59 public void paintComponent(Graphics g){
|
|
f@0
|
60 super.paintComponent(g);
|
|
f@0
|
61
|
|
f@0
|
62 final Graphics2D g2 = (Graphics2D)g;
|
|
f@0
|
63 final Dimension size = getSize();
|
|
f@0
|
64
|
|
f@0
|
65 /* cursorX and cursorY range from 0 to 1, so multiply them respectively *
|
|
f@0
|
66 * by the width and height of this panel to get the drawing position */
|
|
f@0
|
67 int x = (int)(cursorX * size.width);
|
|
f@0
|
68 int y = (int)(size.height - (cursorY * size.height));
|
|
f@0
|
69
|
|
f@0
|
70 g.setColor(Color.ORANGE);
|
|
f@0
|
71
|
|
f@0
|
72 /* draw the x and y lines */
|
|
f@0
|
73 g2.setStroke(LINE_STROKE);
|
|
f@0
|
74 g2.drawLine(0, y, size.width, y);
|
|
f@0
|
75 g2.drawLine(x, 0, x, size.height);
|
|
f@0
|
76
|
|
f@0
|
77 g2.setRenderingHint(
|
|
f@0
|
78 RenderingHints.KEY_ANTIALIASING,
|
|
f@0
|
79 RenderingHints.VALUE_ANTIALIAS_ON);
|
|
f@0
|
80
|
|
f@0
|
81 /* draw the cursor */
|
|
f@0
|
82 g2.fillOval(
|
|
f@0
|
83 x - HALF_CURSOR_SIZE,
|
|
f@0
|
84 y - HALF_CURSOR_SIZE,
|
|
f@0
|
85 CURSOR_SIZE,
|
|
f@0
|
86 CURSOR_SIZE
|
|
f@0
|
87 );
|
|
f@0
|
88
|
|
f@0
|
89 }
|
|
f@0
|
90
|
|
f@0
|
91 /**
|
|
f@0
|
92 * Sets the cursor position, the coordinates must be passed in normalized form and get scaled by the height and width
|
|
f@0
|
93 * of the panel. so for example to place the cursor at the centre of the screen, the coordinates should be both 0.5.
|
|
f@0
|
94 *
|
|
f@0
|
95 * @param x the x coordinate in normalized form (ranging from 0 to 1)
|
|
f@0
|
96 * @param y the y coordinate in normalized form (ranging from 0 to 1)
|
|
f@0
|
97 */
|
|
f@0
|
98 public void setXY(float x, float y){
|
|
f@0
|
99 cursorX = x;
|
|
f@0
|
100 cursorY = y;
|
|
f@0
|
101
|
|
f@0
|
102 repaint();
|
|
f@0
|
103 }
|
|
f@0
|
104 }
|
