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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/*
* 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.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.util.AttributeSet;
import com.android.gallery3d.R;
import com.android.gallery3d.filtershow.editors.EditorFlip;
import com.android.gallery3d.filtershow.filters.FilterMirrorRepresentation.Mirror;
public class ImageFlip extends ImageGeometry {
private static final Paint gPaint = new Paint();
private static final float MIN_FLICK_DIST_FOR_FLIP= 0.1f;
private static final String LOGTAG = "ImageFlip";
private Mirror mNextFlip = Mirror.NONE;
private EditorFlip mEditorFlip;
public ImageFlip(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ImageFlip(Context context) {
super(context);
}
@Override
protected void setActionDown(float x, float y) {
super.setActionDown(x, y);
}
boolean hasRotated90(){
int rot = constrainedRotation(getLocalRotation());
return (rot / 90) % 2 != 0;
}
public void flip() {
Mirror flip = getLocalMirror();
boolean next = true;
// Picks next flip in order from enum Mirror (wrapping)
for (Mirror f : Mirror.values()) {
if (next) {
mNextFlip = f;
next = false;
}
if (f.equals(flip)) {
next = true;
}
}
setLocalMirror(mNextFlip);
}
@Override
protected void setActionMove(float x, float y) {
super.setActionMove(x, y);
float diffx = mTouchCenterX - x;
float diffy = mTouchCenterY - y;
float flick = getScaledMinFlick();
if(hasRotated90()){
float temp = diffx;
diffx = diffy;
diffy = temp;
}
if (Math.abs(diffx) >= flick) {
// flick moving left/right
Mirror flip = getLocalMirror();
switch (flip) {
case NONE:
flip = Mirror.HORIZONTAL;
break;
case HORIZONTAL:
flip = Mirror.NONE;
break;
case VERTICAL:
flip = Mirror.BOTH;
break;
case BOTH:
flip = Mirror.VERTICAL;
break;
default:
flip = Mirror.NONE;
break;
}
mNextFlip = flip;
}
if (Math.abs(diffy) >= flick) {
// flick moving up/down
Mirror flip = getLocalMirror();
switch (flip) {
case NONE:
flip = Mirror.VERTICAL;
break;
case VERTICAL:
flip = Mirror.NONE;
break;
case HORIZONTAL:
flip = Mirror.BOTH;
break;
case BOTH:
flip = Mirror.HORIZONTAL;
break;
default:
flip = Mirror.NONE;
break;
}
mNextFlip = flip;
}
}
@Override
protected void setActionUp() {
super.setActionUp();
setLocalMirror(mNextFlip);
}
@Override
public void resetParameter() {
super.resetParameter();
mNextFlip = Mirror.NONE;
}
private float getScaledMinFlick() {
RectF disp = getLocalDisplayBounds();
float scaled = Math.min(disp.width(), disp.height()) * MIN_FLICK_DIST_FOR_FLIP
/ getLocalScale();
return scaled;
}
@Override
protected void drawShape(Canvas canvas, Bitmap image) {
gPaint.setAntiAlias(true);
gPaint.setARGB(255, 255, 255, 255);
drawTransformedCropped(canvas, image, gPaint);
}
public void setEditor(EditorFlip editorFlip) {
mEditorFlip = editorFlip;
}
}
|
