Editor.java revision 91d26f6c3b183862eeffc1856e2d758e800d13f4 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.gallery3d.filtershow.editors;
18
19import android.content.Context;
20import android.util.AttributeSet;
21import android.util.Log;
22import android.view.LayoutInflater;
23import android.view.Menu;
24import android.view.MenuItem;
25import android.view.View;
26import android.view.ViewGroup;
27import android.widget.Button;
28import android.widget.FrameLayout;
29import android.widget.LinearLayout;
30import android.widget.PopupMenu;
31import android.widget.SeekBar;
32import android.widget.SeekBar.OnSeekBarChangeListener;
33
34import com.android.gallery3d.R;
35import com.android.gallery3d.filtershow.PanelController;
36import com.android.gallery3d.filtershow.cache.ImageLoader;
37import com.android.gallery3d.filtershow.controller.Control;
38import com.android.gallery3d.filtershow.filters.FilterRepresentation;
39import com.android.gallery3d.filtershow.imageshow.ImageShow;
40import com.android.gallery3d.filtershow.imageshow.MasterImage;
41import com.android.gallery3d.filtershow.presets.ImagePreset;
42
43/**
44 * Base class for Editors Must contain a mImageShow and a top level view
45 */
46public class Editor implements OnSeekBarChangeListener, SwapButton.SwapButtonListener {
47    protected Context mContext;
48    protected View mView;
49    protected ImageShow mImageShow;
50    protected FrameLayout mFrameLayout;
51    protected SeekBar mSeekBar;
52    Button mEditTitle;
53    protected PanelController mPanelController;
54    protected int mID;
55    private final String LOGTAG = "Editor";
56    protected FilterRepresentation mLocalRepresentation = null;
57    protected byte mShowParameter = SHOW_VALUE_UNDEFINED;
58    public static byte SHOW_VALUE_UNDEFINED = -1;
59    public static byte SHOW_VALUE_OFF = 0;
60    public static byte SHOW_VALUE_INT = 1;
61
62    public void setPanelController(PanelController panelController) {
63        this.mPanelController = panelController;
64    }
65
66    public String calculateUserMessage(Context context, String effectName, Object parameterValue) {
67        String apply = "";
68        if (mShowParameter == SHOW_VALUE_INT) {
69            apply += " " + effectName + " " + parameterValue;
70        } else {
71            apply += " " + effectName;
72        }
73        return apply;
74    }
75
76    protected Editor(int id) {
77        mID = id;
78    }
79
80    public int getID() {
81        return mID;
82    }
83
84    public byte showParameterValue() {
85        return mShowParameter;
86    }
87
88    public boolean showsSeekBar() {
89        return true;
90    }
91
92    public void setUpEditorUI(View actionButton, View editControl, Button editTitle) {
93        this.mEditTitle = editTitle;
94        setMenuIcon(true);
95        setUtilityPanelUI(actionButton, editControl);
96    }
97
98    public boolean showsPopupIndicator() {
99        return true;
100    }
101
102    /**
103     * @param actionButton the would be the area for menu etc
104     * @param editControl this is the black area for sliders etc
105     */
106    public void setUtilityPanelUI(View actionButton, View editControl) {
107
108        AttributeSet aset;
109        Context context = editControl.getContext();
110        LayoutInflater inflater =
111                (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
112        LinearLayout lp = (LinearLayout) inflater.inflate(
113                R.layout.filtershow_seekbar, (ViewGroup) editControl, true);
114        mSeekBar = (SeekBar) lp.findViewById(R.id.primarySeekBar);
115        mSeekBar.setOnSeekBarChangeListener(this);
116
117        if (showsSeekBar()) {
118            mSeekBar.setOnSeekBarChangeListener(this);
119            mSeekBar.setVisibility(View.VISIBLE);
120        } else {
121            mSeekBar.setVisibility(View.INVISIBLE);
122        }
123
124        Button button = (Button) actionButton.findViewById(R.id.applyEffect);
125        if (button != null) {
126            if (showsPopupIndicator()) {
127                button.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0,
128                        R.drawable.filtershow_menu_marker, 0);
129            } else {
130                button.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0, 0, 0);
131            }
132        }
133    }
134
135    @Override
136    public void onProgressChanged(SeekBar sbar, int progress, boolean arg2) {
137
138    }
139
140    public void setPanel() {
141
142    }
143
144    public void createEditor(Context context,FrameLayout frameLayout) {
145        mContext = context;
146        mFrameLayout = frameLayout;
147        mLocalRepresentation = null;
148    }
149
150    protected void unpack(int viewid, int layoutid) {
151
152        if (mView == null) {
153            mView = mFrameLayout.findViewById(viewid);
154            if (mView == null) {
155                LayoutInflater inflater = (LayoutInflater) mContext.getSystemService
156                        (Context.LAYOUT_INFLATER_SERVICE);
157                mView = inflater.inflate(layoutid, mFrameLayout, false);
158                mFrameLayout.addView(mView, mView.getLayoutParams());
159            }
160        }
161        mImageShow = findImageShow(mView);
162    }
163
164    private ImageShow findImageShow(View view) {
165        if (view instanceof ImageShow) {
166            return (ImageShow) view;
167        }
168        if (!(view instanceof ViewGroup)) {
169            return null;
170        }
171        ViewGroup vg = (ViewGroup) view;
172        int n = vg.getChildCount();
173        for (int i = 0; i < n; i++) {
174            View v = vg.getChildAt(i);
175            if (v instanceof ImageShow) {
176                return (ImageShow) v;
177            } else if (v instanceof ViewGroup) {
178                return findImageShow(v);
179            }
180        }
181        return null;
182    }
183
184    public View getTopLevelView() {
185        return mView;
186    }
187
188    public ImageShow getImageShow() {
189        return mImageShow;
190    }
191
192    public void setImageLoader(ImageLoader imageLoader) {
193        mImageShow.setImageLoader(imageLoader);
194    }
195
196    public void setVisibility(int visible) {
197        mView.setVisibility(visible);
198    }
199
200    public FilterRepresentation getLocalRepresentation() {
201        if (mLocalRepresentation == null) {
202            ImagePreset preset = MasterImage.getImage().getPreset();
203            FilterRepresentation filterRepresentation = MasterImage.getImage().getCurrentFilterRepresentation();
204            mLocalRepresentation = preset.getFilterRepresentationCopyFrom(filterRepresentation);
205            if (mShowParameter == SHOW_VALUE_UNDEFINED) {
206                boolean show = filterRepresentation.showParameterValue();
207                mShowParameter = show ? SHOW_VALUE_INT : SHOW_VALUE_OFF;
208            }
209        }
210
211        return mLocalRepresentation;
212    }
213
214    public void commitLocalRepresentation() {
215        ImagePreset preset = MasterImage.getImage().getPreset();
216        preset.updateFilterRepresentation(getLocalRepresentation());
217        mPanelController.onNewValue(-1);
218    }
219
220    /**
221     * called after the filter is set and the select is called
222     */
223    public void reflectCurrentFilter() {
224        mLocalRepresentation = null;
225    }
226
227    public boolean useUtilityPanel() {
228        return true;
229    }
230
231    public void openUtilityPanel(LinearLayout mAccessoryViewList) {
232        setMenuIcon(false);
233        if (mImageShow != null) {
234            mImageShow.openUtilityPanel(mAccessoryViewList);
235        }
236    }
237
238    protected void setMenuIcon(boolean on) {
239        mEditTitle.setCompoundDrawablesRelativeWithIntrinsicBounds(
240                0, 0, on ? R.drawable.filtershow_menu_marker : 0, 0);
241    }
242    protected void createMenu(int[] strId, View button) {
243        PopupMenu pmenu = new PopupMenu(mContext, button);
244        Menu menu = pmenu.getMenu();
245        for (int i = 0; i < strId.length; i++) {
246            menu.add(Menu.NONE, Menu.FIRST + i, 0, mContext.getString(strId[i]));
247        }
248        setMenuIcon(true);
249
250    }
251
252    public Control[] getControls() {
253        return null;
254    }
255    @Override
256    public void onStartTrackingTouch(SeekBar arg0) {
257
258    }
259
260    @Override
261    public void onStopTrackingTouch(SeekBar arg0) {
262
263    }
264
265    @Override
266    public void swapLeft(MenuItem item) {
267
268    }
269
270    @Override
271    public void swapRight(MenuItem item) {
272
273    }
274
275    public void detach() {
276
277    }
278}
279