blob: 3795d1f2155e486e9f570e3fe79d44201943a747 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.gallery3d.filtershow.imageshow;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.MotionEvent;
import com.android.gallery3d.filtershow.editors.BasicEditor;
import com.android.gallery3d.filtershow.editors.EditorTinyPlanet;
import com.android.gallery3d.filtershow.filters.FilterCurvesRepresentation;
import com.android.gallery3d.filtershow.filters.FilterTinyPlanetRepresentation;
import com.android.gallery3d.filtershow.filters.ImageFilterTinyPlanet;
public class ImageTinyPlanet extends ImageShow {
private float mTouchCenterX = 0;
private float mTouchCenterY = 0;
private float mCurrentX = 0;
private float mCurrentY = 0;
private float mCenterX = 0;
private float mCenterY = 0;
private float mStartAngle = 0;
private FilterTinyPlanetRepresentation mTinyPlanetRep;
private BasicEditor mEditorTinyPlanet;
public ImageTinyPlanet(Context context) {
super(context);
}
public ImageTinyPlanet(Context context, AttributeSet attrs) {
super(context, attrs);
}
protected static float angleFor(float dx, float dy) {
return (float) (Math.atan2(dx, dy) * 180 / Math.PI);
}
protected float getCurrentTouchAngle() {
if (mCurrentX == mTouchCenterX && mCurrentY == mTouchCenterY) {
return 0;
}
float dX1 = mTouchCenterX - mCenterX;
float dY1 = mTouchCenterY - mCenterY;
float dX2 = mCurrentX - mCenterX;
float dY2 = mCurrentY - mCenterY;
float angleA = angleFor(dX1, dY1);
float angleB = angleFor(dX2, dY2);
return (float) (((angleB - angleA) % 360) * Math.PI / 180);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();
mCurrentX = x;
mCurrentY = y;
mCenterX = getWidth() / 2;
mCenterY = getHeight() / 2;
switch (event.getActionMasked()) {
case (MotionEvent.ACTION_DOWN):
mTouchCenterX = x;
mTouchCenterY = y;
mStartAngle = mTinyPlanetRep.getAngle();
break;
case (MotionEvent.ACTION_UP):
case (MotionEvent.ACTION_MOVE):
mTinyPlanetRep.setAngle(mStartAngle + getCurrentTouchAngle());
break;
}
resetImageCaches(this);
invalidate();
mEditorTinyPlanet.commitLocalRepresentation();
return true;
}
public void setRepresentation(FilterTinyPlanetRepresentation tinyPlanetRep) {
mTinyPlanetRep = tinyPlanetRep;
}
public void setEditor(BasicEditor editorTinyPlanet) {
mEditorTinyPlanet = editorTinyPlanet;
}
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
}
}
|