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 
17 package com.android.gallery3d.filtershow.editors;
18 
19 import android.content.Context;
20 import android.content.res.Configuration;
21 import android.util.AttributeSet;
22 import android.util.Log;
23 import android.view.LayoutInflater;
24 import android.view.Menu;
25 import android.view.MenuItem;
26 import android.view.View;
27 import android.view.ViewGroup;
28 import android.widget.Button;
29 import android.widget.FrameLayout;
30 import android.widget.LinearLayout;
31 import android.widget.PopupMenu;
32 import android.widget.SeekBar;
33 import android.widget.SeekBar.OnSeekBarChangeListener;
34 
35 import com.android.gallery3d.R;
36 import com.android.gallery3d.filtershow.controller.Control;
37 import com.android.gallery3d.filtershow.filters.FilterRepresentation;
38 import com.android.gallery3d.filtershow.imageshow.ImageShow;
39 import com.android.gallery3d.filtershow.imageshow.MasterImage;
40 import com.android.gallery3d.filtershow.pipeline.ImagePreset;
41 
42 import java.util.ArrayList;
43 import java.util.Collection;
44 
45 /**
46  * Base class for Editors Must contain a mImageShow and a top level view
47  */
48 public class Editor implements OnSeekBarChangeListener, SwapButton.SwapButtonListener {
49     protected Context mContext;
50     protected View mView;
51     protected ImageShow mImageShow;
52     protected FrameLayout mFrameLayout;
53     protected SeekBar mSeekBar;
54     Button mEditTitle;
55     protected Button mFilterTitle;
56     protected int mID;
57     private final String LOGTAG = "Editor";
58     protected boolean mChangesGeometry = false;
59     protected FilterRepresentation mLocalRepresentation = null;
60     protected byte mShowParameter = SHOW_VALUE_UNDEFINED;
61     private Button mButton;
62     public static byte SHOW_VALUE_UNDEFINED = -1;
63     public static byte SHOW_VALUE_OFF = 0;
64     public static byte SHOW_VALUE_INT = 1;
65 
hackFixStrings(Menu menu)66     public static void hackFixStrings(Menu menu) {
67         int count = menu.size();
68         for (int i = 0; i < count; i++) {
69             MenuItem item = menu.getItem(i);
70             item.setTitle(item.getTitle().toString().toUpperCase());
71         }
72     }
73 
calculateUserMessage(Context context, String effectName, Object parameterValue)74     public String calculateUserMessage(Context context, String effectName, Object parameterValue) {
75         return effectName.toUpperCase() + " " + parameterValue;
76     }
77 
Editor(int id)78     protected Editor(int id) {
79         mID = id;
80     }
81 
getID()82     public int getID() {
83         return mID;
84     }
85 
showParameterValue()86     public byte showParameterValue() {
87         return mShowParameter;
88     }
89 
showsSeekBar()90     public boolean showsSeekBar() {
91         return true;
92     }
93 
setUpEditorUI(View actionButton, View editControl, Button editTitle, Button stateButton)94     public void setUpEditorUI(View actionButton, View editControl,
95                               Button editTitle, Button stateButton) {
96         mEditTitle = editTitle;
97         mFilterTitle = stateButton;
98         mButton = editTitle;
99         MasterImage.getImage().resetGeometryImages(false);
100         setUtilityPanelUI(actionButton, editControl);
101     }
102 
showsPopupIndicator()103     public boolean showsPopupIndicator() {
104         return false;
105     }
106 
107     /**
108      * @param actionButton the would be the area for menu etc
109      * @param editControl this is the black area for sliders etc
110      */
setUtilityPanelUI(View actionButton, View editControl)111     public void setUtilityPanelUI(View actionButton, View editControl) {
112 
113         AttributeSet aset;
114         Context context = editControl.getContext();
115         LayoutInflater inflater =
116                 (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
117         LinearLayout lp = (LinearLayout) inflater.inflate(
118                 R.layout.filtershow_seekbar, (ViewGroup) editControl, true);
119         mSeekBar = (SeekBar) lp.findViewById(R.id.primarySeekBar);
120         mSeekBar.setOnSeekBarChangeListener(this);
121         mSeekBar.setVisibility(View.GONE);
122         if (context.getResources().getConfiguration().orientation
123                 == Configuration.ORIENTATION_PORTRAIT) {
124             if (showsSeekBar()) {
125                mSeekBar.setVisibility(View.VISIBLE);
126             }
127         }
128 
129         if (mButton != null) {
130             setMenuIcon(showsPopupIndicator());
131         }
132     }
133 
134     @Override
onProgressChanged(SeekBar sbar, int progress, boolean arg2)135     public void onProgressChanged(SeekBar sbar, int progress, boolean arg2) {
136 
137     }
138 
setPanel()139     public void setPanel() {
140 
141     }
142 
createEditor(Context context, FrameLayout frameLayout)143     public void createEditor(Context context, FrameLayout frameLayout) {
144         mContext = context;
145         mFrameLayout = frameLayout;
146         mLocalRepresentation = null;
147     }
148 
unpack(int viewid, int layoutid)149     protected void unpack(int viewid, int layoutid) {
150 
151         if (mView == null) {
152             mView = mFrameLayout.findViewById(viewid);
153             if (mView == null) {
154                 LayoutInflater inflater = (LayoutInflater) mContext.getSystemService
155                         (Context.LAYOUT_INFLATER_SERVICE);
156                 mView = inflater.inflate(layoutid, mFrameLayout, false);
157                 mFrameLayout.addView(mView, mView.getLayoutParams());
158             }
159         }
160         mImageShow = findImageShow(mView);
161     }
162 
findImageShow(View view)163     private ImageShow findImageShow(View view) {
164         if (view instanceof ImageShow) {
165             return (ImageShow) view;
166         }
167         if (!(view instanceof ViewGroup)) {
168             return null;
169         }
170         ViewGroup vg = (ViewGroup) view;
171         int n = vg.getChildCount();
172         for (int i = 0; i < n; i++) {
173             View v = vg.getChildAt(i);
174             if (v instanceof ImageShow) {
175                 return (ImageShow) v;
176             } else if (v instanceof ViewGroup) {
177                 return findImageShow(v);
178             }
179         }
180         return null;
181     }
182 
getTopLevelView()183     public View getTopLevelView() {
184         return mView;
185     }
186 
getImageShow()187     public ImageShow getImageShow() {
188         return mImageShow;
189     }
190 
setVisibility(int visible)191     public void setVisibility(int visible) {
192         mView.setVisibility(visible);
193     }
194 
getLocalRepresentation()195     public FilterRepresentation getLocalRepresentation() {
196         if (mLocalRepresentation == null) {
197             ImagePreset preset = MasterImage.getImage().getPreset();
198             FilterRepresentation filterRepresentation = MasterImage.getImage().getCurrentFilterRepresentation();
199             mLocalRepresentation = preset.getFilterRepresentationCopyFrom(filterRepresentation);
200             if (mShowParameter == SHOW_VALUE_UNDEFINED && filterRepresentation != null) {
201                 boolean show = filterRepresentation.showParameterValue();
202                 mShowParameter = show ? SHOW_VALUE_INT : SHOW_VALUE_OFF;
203             }
204 
205         }
206         return mLocalRepresentation;
207     }
208 
209     /**
210      * Call this to update the preset in MasterImage with the current representation
211      * returned by getLocalRepresentation.  This causes the preview bitmap to be
212      * regenerated.
213      */
commitLocalRepresentation()214     public void commitLocalRepresentation() {
215         commitLocalRepresentation(getLocalRepresentation());
216     }
217 
218     /**
219      * Call this to update the preset in MasterImage with a given representation.
220      * This causes the preview bitmap to be regenerated.
221      */
commitLocalRepresentation(FilterRepresentation rep)222     public void commitLocalRepresentation(FilterRepresentation rep) {
223         ArrayList<FilterRepresentation> filter = new ArrayList<FilterRepresentation>(1);
224         filter.add(rep);
225         commitLocalRepresentation(filter);
226     }
227 
228     /**
229      * Call this to update the preset in MasterImage with a collection of FilterRepresentations.
230      * This causes the preview bitmap to be regenerated.
231      */
commitLocalRepresentation(Collection<FilterRepresentation> reps)232     public void commitLocalRepresentation(Collection<FilterRepresentation> reps) {
233         ImagePreset preset = MasterImage.getImage().getPreset();
234         preset.updateFilterRepresentations(reps);
235         if (mButton != null) {
236             updateText();
237         }
238         if (mChangesGeometry) {
239             // Regenerate both the filtered and the geometry-only bitmaps
240             MasterImage.getImage().resetGeometryImages(true);
241         }
242         // Regenerate the filtered bitmap.
243         MasterImage.getImage().invalidateFiltersOnly();
244         preset.fillImageStateAdapter(MasterImage.getImage().getState());
245     }
246 
247     /**
248      * This is called in response to a click to apply and leave the editor.
249      */
finalApplyCalled()250     public void finalApplyCalled() {
251         commitLocalRepresentation();
252     }
253 
updateText()254     protected void updateText() {
255         String s = "";
256         if (mLocalRepresentation != null) {
257             s = mContext.getString(mLocalRepresentation.getTextId());
258         }
259         mButton.setText(calculateUserMessage(mContext, s, ""));
260     }
261 
262     /**
263      * called after the filter is set and the select is called
264      */
reflectCurrentFilter()265     public void reflectCurrentFilter() {
266         mLocalRepresentation = null;
267         FilterRepresentation representation = getLocalRepresentation();
268         if (representation != null && mFilterTitle != null && representation.getTextId() != 0) {
269             String text = mContext.getString(representation.getTextId()).toUpperCase();
270             mFilterTitle.setText(text);
271             updateText();
272         }
273     }
274 
useUtilityPanel()275     public boolean useUtilityPanel() {
276         return true;
277     }
278 
openUtilityPanel(LinearLayout mAccessoryViewList)279     public void openUtilityPanel(LinearLayout mAccessoryViewList) {
280         setMenuIcon(showsPopupIndicator());
281         if (mImageShow != null) {
282             mImageShow.openUtilityPanel(mAccessoryViewList);
283         }
284     }
285 
setMenuIcon(boolean on)286     protected void setMenuIcon(boolean on) {
287         mEditTitle.setCompoundDrawablesRelativeWithIntrinsicBounds(
288                 0, 0, on ? R.drawable.filtershow_menu_marker_rtl : 0, 0);
289     }
290 
createMenu(int[] strId, View button)291     protected void createMenu(int[] strId, View button) {
292         PopupMenu pmenu = new PopupMenu(mContext, button);
293         Menu menu = pmenu.getMenu();
294         for (int i = 0; i < strId.length; i++) {
295             menu.add(Menu.NONE, Menu.FIRST + i, 0, mContext.getString(strId[i]));
296         }
297         setMenuIcon(true);
298 
299     }
300 
getControls()301     public Control[] getControls() {
302         return null;
303     }
304 
305     @Override
onStartTrackingTouch(SeekBar arg0)306     public void onStartTrackingTouch(SeekBar arg0) {
307 
308     }
309 
310     @Override
onStopTrackingTouch(SeekBar arg0)311     public void onStopTrackingTouch(SeekBar arg0) {
312 
313     }
314 
315     @Override
swapLeft(MenuItem item)316     public void swapLeft(MenuItem item) {
317 
318     }
319 
320     @Override
swapRight(MenuItem item)321     public void swapRight(MenuItem item) {
322 
323     }
324 
detach()325     public void detach() {
326         if (mImageShow != null) {
327             mImageShow.detach();
328         }
329     }
330 }
331