jsampler/android/AHF.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2011 Grigor Iliev <grigor@grigoriliev.com>
 *
 *   This file is part of JSampler.
 *
 *   JSampler is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2
 *   as published by the Free Software Foundation.
 *
 *   JSampler is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with JSampler; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *   MA  02111-1307  USA
 */

package org.jsampler.android;

import org.jsampler.CC;
import org.jsampler.android.view.AndroidMainFrame;

import android.view.MotionEvent;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;

/**
 * This class contains some android helper function.
 * @author Grigor Iliev
 */
public class AHF {
        private static JSamplerActivity activity = null;
        
        public static JSamplerActivity
        getActivity() { return activity; }
        
        public static AndroidMainFrame
        getMainFrame() { return (AndroidMainFrame)CC.getMainFrame(); }
        
        public static void
        setActivity(JSamplerActivity activity) { AHF.activity = activity; }
        
        public static Animation
        inFromRightAnimation() {
                Animation inFromRight = new TranslateAnimation (
                        Animation.RELATIVE_TO_PARENT, 1.0f,
                        Animation.RELATIVE_TO_PARENT, 0.0f,
                        Animation.RELATIVE_TO_PARENT, 0.0f,
                        Animation.RELATIVE_TO_PARENT, 0.0f
                );
                inFromRight.setDuration(400);
                inFromRight.setInterpolator(new AccelerateInterpolator());
                return inFromRight;
        }
        
        public static Animation
        outToLeftAnimation() {
                Animation outToLeft = new TranslateAnimation (
                        Animation.RELATIVE_TO_PARENT,  0.0f,
                        Animation.RELATIVE_TO_PARENT, -1.0f,
                        Animation.RELATIVE_TO_PARENT,  0.0f,
                        Animation.RELATIVE_TO_PARENT,  0.0f
                );
                outToLeft.setDuration(400);
                outToLeft.setInterpolator(new AccelerateInterpolator());
                return outToLeft;
        }

        public static Animation
        inFromLeftAnimation() {
                Animation inFromLeft = new TranslateAnimation (
                        Animation.RELATIVE_TO_PARENT, -1.0f,
                        Animation.RELATIVE_TO_PARENT,  0.0f,
                        Animation.RELATIVE_TO_PARENT,  0.0f,
                        Animation.RELATIVE_TO_PARENT,  0.0f
                );
                inFromLeft.setDuration(400);
                inFromLeft.setInterpolator(new AccelerateInterpolator());
                return inFromLeft;
        }
        
        public static Animation
        outToRightAnimation() {
                Animation outToRight = new TranslateAnimation (
                        Animation.RELATIVE_TO_PARENT, 0.0f,
                        Animation.RELATIVE_TO_PARENT, 1.0f,
                        Animation.RELATIVE_TO_PARENT, 0.0f,
                        Animation.RELATIVE_TO_PARENT, 0.0f
                );
                outToRight.setDuration(400);
                outToRight.setInterpolator(new AccelerateInterpolator());
                return outToRight;
        }
        
        public static boolean
        isMotionHorizontal(MotionEvent e1, MotionEvent e2) {
                return Math.abs(e1.getX() - e2.getX()) > Math.abs(e1.getY() - e2.getY());
        }
        
        public static boolean
        isMotionVertical(MotionEvent e1, MotionEvent e2) {
                return Math.abs(e1.getX() - e2.getX()) < Math.abs(e1.getY() - e2.getY());
        }
        
        public static boolean
        isMotionLeftToRight(MotionEvent e1, MotionEvent e2, int min) {
                return isMotionHorizontal(e1, e2) && e2.getX() - e1.getX() > min;
        }
        
        public static boolean
        isMotionRightToLeft(MotionEvent e1, MotionEvent e2, int min) {
                return isMotionHorizontal(e1, e2) && e1.getX() - e2.getX() > min;
        }
        
        public static boolean
        isMotionUp(MotionEvent e1, MotionEvent e2, int min) {
                return isMotionVertical(e1, e2) && e1.getY() - e2.getY() > min;
        }
        
        public static boolean
        isMotionDown(MotionEvent e1, MotionEvent e2, int min) {
                return isMotionVertical(e1, e2) && e2.getY() - e1.getY() > min;
        }
}
1	/*
2	* JSampler - a java front-end for LinuxSampler
3	*
4	* Copyright (C) 2011 Grigor Iliev <grigor@grigoriliev.com>
5	*
6	* This file is part of JSampler.
7	*
8	* JSampler is free software; you can redistribute it and/or modify
9	* it under the terms of the GNU General Public License version 2
10	* as published by the Free Software Foundation.
11	*
12	* JSampler is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	* GNU General Public License for more details.
16	*
17	* You should have received a copy of the GNU General Public License
18	* along with JSampler; if not, write to the Free Software
19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20	* MA 02111-1307 USA
21	*/
22
23	package org.jsampler.android;
24
25	import org.jsampler.CC;
26	import org.jsampler.android.view.AndroidMainFrame;
27
28	import android.view.MotionEvent;
29	import android.view.animation.AccelerateInterpolator;
30	import android.view.animation.Animation;
31	import android.view.animation.TranslateAnimation;
32
33	/**
34	* This class contains some android helper function.
35	* @author Grigor Iliev
36	*/
37	public class AHF {
38	private static JSamplerActivity activity = null;
39
40	public static JSamplerActivity
41	getActivity() { return activity; }
42
43	public static AndroidMainFrame
44	getMainFrame() { return (AndroidMainFrame)CC.getMainFrame(); }
45
46	public static void
47	setActivity(JSamplerActivity activity) { AHF.activity = activity; }
48
49	public static Animation
50	inFromRightAnimation() {
51	Animation inFromRight = new TranslateAnimation (
52	Animation.RELATIVE_TO_PARENT, 1.0f,
53	Animation.RELATIVE_TO_PARENT, 0.0f,
54	Animation.RELATIVE_TO_PARENT, 0.0f,
55	Animation.RELATIVE_TO_PARENT, 0.0f
56	);
57	inFromRight.setDuration(400);
58	inFromRight.setInterpolator(new AccelerateInterpolator());
59	return inFromRight;
60	}
61
62	public static Animation
63	outToLeftAnimation() {
64	Animation outToLeft = new TranslateAnimation (
65	Animation.RELATIVE_TO_PARENT, 0.0f,
66	Animation.RELATIVE_TO_PARENT, -1.0f,
67	Animation.RELATIVE_TO_PARENT, 0.0f,
68	Animation.RELATIVE_TO_PARENT, 0.0f
69	);
70	outToLeft.setDuration(400);
71	outToLeft.setInterpolator(new AccelerateInterpolator());
72	return outToLeft;
73	}
74
75	public static Animation
76	inFromLeftAnimation() {
77	Animation inFromLeft = new TranslateAnimation (
78	Animation.RELATIVE_TO_PARENT, -1.0f,
79	Animation.RELATIVE_TO_PARENT, 0.0f,
80	Animation.RELATIVE_TO_PARENT, 0.0f,
81	Animation.RELATIVE_TO_PARENT, 0.0f
82	);
83	inFromLeft.setDuration(400);
84	inFromLeft.setInterpolator(new AccelerateInterpolator());
85	return inFromLeft;
86	}
87
88	public static Animation
89	outToRightAnimation() {
90	Animation outToRight = new TranslateAnimation (
91	Animation.RELATIVE_TO_PARENT, 0.0f,
92	Animation.RELATIVE_TO_PARENT, 1.0f,
93	Animation.RELATIVE_TO_PARENT, 0.0f,
94	Animation.RELATIVE_TO_PARENT, 0.0f
95	);
96	outToRight.setDuration(400);
97	outToRight.setInterpolator(new AccelerateInterpolator());
98	return outToRight;
99	}
100
101	public static boolean
102	isMotionHorizontal(MotionEvent e1, MotionEvent e2) {
103	return Math.abs(e1.getX() - e2.getX()) > Math.abs(e1.getY() - e2.getY());
104	}
105
106	public static boolean
107	isMotionVertical(MotionEvent e1, MotionEvent e2) {
108	return Math.abs(e1.getX() - e2.getX()) < Math.abs(e1.getY() - e2.getY());
109	}
110
111	public static boolean
112	isMotionLeftToRight(MotionEvent e1, MotionEvent e2, int min) {
113	return isMotionHorizontal(e1, e2) && e2.getX() - e1.getX() > min;
114	}
115
116	public static boolean
117	isMotionRightToLeft(MotionEvent e1, MotionEvent e2, int min) {
118	return isMotionHorizontal(e1, e2) && e1.getX() - e2.getX() > min;
119	}
120
121	public static boolean
122	isMotionUp(MotionEvent e1, MotionEvent e2, int min) {
123	return isMotionVertical(e1, e2) && e1.getY() - e2.getY() > min;
124	}
125
126	public static boolean
127	isMotionDown(MotionEvent e1, MotionEvent e2, int min) {
128	return isMotionVertical(e1, e2) && e2.getY() - e1.getY() > min;
129	}
130	}