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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
|
/*
* Copyright (C) 2011 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.camera;
import com.android.camera.ui.RotateImageView;
import android.content.Context;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
import android.widget.RelativeLayout;
/**
* A widget that includes three mode selections {@code RotateImageView}'s and
* a current mode indicator.
*/
public class ModePicker extends RelativeLayout implements View.OnClickListener {
public static final int MODE_CAMERA = 0;
public static final int MODE_VIDEO = 1;
public static final int MODE_PANORAMA = 2;
// Total mode number
private static final int MODE_NUM = 3;
/** A callback to be called when the user wants to switch activity. */
public interface OnModeChangeListener {
// Returns true if the listener agrees that the mode can be changed.
public boolean onModeChanged(int newMode);
}
private final int DISABLED_COLOR;
private final int CURRENT_MODE_BACKGROUND;
private OnModeChangeListener mListener;
private View mModeSelectionFrame;
private RotateImageView mModeSelectionIcon[];
private View mCurrentModeFrame;
private RotateImageView mCurrentModeIcon[];
private View mCurrentModeBar;
private View mSelectedView;
private int mCurrentMode = 0;
private Animation mFadeIn, mFadeOut;
public ModePicker(Context context, AttributeSet attrs) {
super(context, attrs);
DISABLED_COLOR = context.getResources().getColor(R.color.icon_disabled_color);
CURRENT_MODE_BACKGROUND = R.drawable.btn_mode_background;
mFadeIn = AnimationUtils.loadAnimation(
context, R.anim.mode_selection_fade_in);
mFadeOut = AnimationUtils.loadAnimation(
context, R.anim.mode_selection_fade_out);
mFadeOut.setAnimationListener(mAnimationListener);
}
protected void onFinishInflate() {
super.onFinishInflate();
mModeSelectionFrame = findViewById(R.id.mode_selection);
mModeSelectionIcon = new RotateImageView[MODE_NUM];
mModeSelectionIcon[MODE_PANORAMA] =
(RotateImageView) findViewById(R.id.mode_panorama);
mModeSelectionIcon[MODE_VIDEO] =
(RotateImageView) findViewById(R.id.mode_video);
mModeSelectionIcon[MODE_CAMERA] =
(RotateImageView) findViewById(R.id.mode_camera);
// The current mode frame is for Phone UI only.
mCurrentModeFrame = findViewById(R.id.current_mode);
if (mCurrentModeFrame != null) {
mCurrentModeFrame.setOnClickListener(this);
mCurrentModeIcon = new RotateImageView[MODE_NUM];
mCurrentModeIcon[0] = (RotateImageView) findViewById(R.id.mode_0);
mCurrentModeIcon[1] = (RotateImageView) findViewById(R.id.mode_1);
mCurrentModeIcon[2] = (RotateImageView) findViewById(R.id.mode_2);
} else {
// current_mode_bar is only for tablet.
mCurrentModeBar = findViewById(R.id.current_mode_bar);
enableModeSelection(true);
}
}
private AnimationListener mAnimationListener = new AnimationListener() {
public void onAnimationEnd(Animation animation) {
changeToSelectedMode();
mCurrentModeFrame.setVisibility(View.VISIBLE);
mModeSelectionFrame.setVisibility(View.GONE);
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationStart(Animation animation) {
}
};
private void enableModeSelection(boolean enabled) {
if (mCurrentModeFrame != null) {
// Animation Effect is applied on Phone UI only.
mModeSelectionFrame.startAnimation(enabled ? mFadeIn : mFadeOut);
if (enabled) {
mModeSelectionFrame.setVisibility(View.VISIBLE);
mCurrentModeFrame.setVisibility(View.GONE);
}
mCurrentModeFrame.setOnClickListener(enabled ? null : this);
}
for (int i = 0; i < MODE_NUM; ++i) {
mModeSelectionIcon[i].setOnClickListener(enabled ? this : null);
}
updateModeState();
}
private void changeToSelectedMode() {
for (int i = 0; i < MODE_NUM; ++i) {
if (mSelectedView == mModeSelectionIcon[i]) {
setCurrentMode(i);
return;
}
}
}
public void onClick(View view) {
if (view == mCurrentModeFrame) {
enableModeSelection(true);
} else {
// The view in selection menu is clicked.
mSelectedView = view;
if (mCurrentModeBar == null) {
enableModeSelection(false);
} else {
changeToSelectedMode();
}
}
}
public void setOnModeChangeListener(OnModeChangeListener listener) {
mListener = listener;
}
public void setCurrentMode(int mode) {
tryToSetMode(mode);
updateModeState();
}
private void tryToSetMode(int mode) {
if (mListener != null) {
if (!mListener.onModeChanged(mode)) {
return;
}
}
mCurrentMode = mode;
}
public boolean onModeChanged(int mode) {
setCurrentMode(mode);
return true;
}
public void setDegree(int degree) {
for (int i = 0; i < MODE_NUM; ++i) {
mModeSelectionIcon[i].setDegree(degree);
if (mCurrentModeFrame != null) {
mCurrentModeIcon[i].setDegree(degree);
}
}
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
// Enable or disable the frames.
if (mCurrentModeFrame != null) mCurrentModeFrame.setEnabled(enabled);
mModeSelectionFrame.setEnabled(enabled);
// Enable or disable the icons.
for (int i = 0; i < MODE_NUM; ++i) {
mModeSelectionIcon[i].setEnabled(enabled);
if (mCurrentModeFrame != null) mCurrentModeIcon[i].setEnabled(enabled);
}
if (enabled) updateModeState();
}
private void highlightView(View view, boolean enabled) {
Drawable drawable = ((ImageView) view).getDrawable();
if (enabled) {
drawable.clearColorFilter();
} else {
drawable.setColorFilter(DISABLED_COLOR, PorterDuff.Mode.SRC_ATOP);
}
requestLayout();
}
private void updateModeState() {
// Grey-out the unselected icons.
for (int i = 0; i < MODE_NUM; ++i) {
highlightView(mModeSelectionIcon[i], (i == mCurrentMode));
}
// Update the current mode icons on the Phone UI. The selected mode
// should be in the center of the current mode icon bar.
if (mCurrentModeFrame != null) {
for (int i = 0, j = 0; i < MODE_NUM; ++i) {
int target;
if (i == 1) {
// The second icon is always the selected mode.
target = mCurrentMode;
} else {
// Set the icons in order of camera, video and panorama.
if (j == mCurrentMode) j++;
target = j++;
}
mCurrentModeIcon[i].setImageDrawable(
mModeSelectionIcon[target].getDrawable());
}
}
}
@Override
protected void onLayout(
boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
// Layout the current mode indicator bar.
if (mCurrentModeBar != null) {
int viewWidth = mModeSelectionIcon[MODE_CAMERA].getWidth();
int iconWidth = ((ImageView) mModeSelectionIcon[MODE_CAMERA])
.getDrawable().getIntrinsicWidth();
int padding = (viewWidth - iconWidth) / 2;
int l = mModeSelectionFrame.getLeft() + mCurrentMode * viewWidth;
mCurrentModeBar.layout((l + padding),
(bottom - top - mCurrentModeBar.getHeight()),
(l + padding + iconWidth),
(bottom - top));
}
}
}
|
