1/*
2 * Copyright (C) 2013 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.graphics.Point;
21import android.util.Log;
22import android.view.View;
23import android.view.ViewGroup;
24import android.view.ViewGroup.LayoutParams;
25import android.view.WindowManager;
26import android.widget.FrameLayout;
27import android.widget.LinearLayout;
28import android.widget.SeekBar;
29
30import com.android.gallery3d.R;
31import com.android.gallery3d.filtershow.controller.ActionSlider;
32import com.android.gallery3d.filtershow.controller.BasicSlider;
33import com.android.gallery3d.filtershow.controller.Control;
34import com.android.gallery3d.filtershow.controller.Parameter;
35import com.android.gallery3d.filtershow.controller.ParameterActionAndInt;
36import com.android.gallery3d.filtershow.controller.ParameterInteger;
37import com.android.gallery3d.filtershow.controller.ParameterStyles;
38import com.android.gallery3d.filtershow.controller.StyleChooser;
39import com.android.gallery3d.filtershow.controller.TitledSlider;
40import com.android.gallery3d.filtershow.filters.FilterBasicRepresentation;
41import com.android.gallery3d.filtershow.filters.FilterRepresentation;
42
43import java.lang.reflect.Constructor;
44import java.util.HashMap;
45
46public class ParametricEditor extends Editor {
47    private int mLayoutID;
48    private int mViewID;
49    public static int ID = R.id.editorParametric;
50    private final String LOGTAG = "ParametricEditor";
51    protected Control mControl;
52    public static final int MINIMUM_WIDTH = 600;
53    public static final int MINIMUM_HEIGHT = 800;
54    View mActionButton;
55    View mEditControl;
56    static HashMap<String, Class> portraitMap = new HashMap<String, Class>();
57    static HashMap<String, Class> landscapeMap = new HashMap<String, Class>();
58    static {
59        portraitMap.put(ParameterInteger.sParameterType, BasicSlider.class);
60        landscapeMap.put(ParameterInteger.sParameterType, TitledSlider.class);
61        portraitMap.put(ParameterActionAndInt.sParameterType, ActionSlider.class);
62        landscapeMap.put(ParameterActionAndInt.sParameterType, ActionSlider.class);
63        portraitMap.put(ParameterStyles.sParameterType, StyleChooser.class);
64        landscapeMap.put(ParameterStyles.sParameterType, StyleChooser.class);
65    }
66
67    static Constructor getConstructor(Class cl) {
68        try {
69            return cl.getConstructor(Context.class, ViewGroup.class);
70        } catch (Exception e) {
71            return null;
72        }
73    }
74
75    public ParametricEditor() {
76        super(ID);
77    }
78
79    protected ParametricEditor(int id) {
80        super(id);
81    }
82
83    protected ParametricEditor(int id, int layoutID, int viewID) {
84        super(id);
85        mLayoutID = layoutID;
86        mViewID = viewID;
87    }
88
89    @Override
90    public String calculateUserMessage(Context context, String effectName, Object parameterValue) {
91        String apply = "";
92
93        if (mShowParameter == SHOW_VALUE_INT & useCompact(context)) {
94           if (getLocalRepresentation() instanceof FilterBasicRepresentation) {
95            FilterBasicRepresentation interval = (FilterBasicRepresentation) getLocalRepresentation();
96                apply += " " + effectName.toUpperCase() + " " + interval.getStateRepresentation();
97           } else {
98                apply += " " + effectName.toUpperCase() + " " + parameterValue;
99           }
100        } else {
101            apply += " " + effectName.toUpperCase();
102        }
103        return apply;
104    }
105
106    @Override
107    public void createEditor(Context context, FrameLayout frameLayout) {
108        super.createEditor(context, frameLayout);
109        unpack(mViewID, mLayoutID);
110    }
111
112    @Override
113    public void reflectCurrentFilter() {
114        super.reflectCurrentFilter();
115        if (getLocalRepresentation() != null
116                && getLocalRepresentation() instanceof FilterBasicRepresentation) {
117            FilterBasicRepresentation interval = (FilterBasicRepresentation) getLocalRepresentation();
118            mControl.setPrameter(interval);
119        }
120    }
121
122    @Override
123    public Control[] getControls() {
124        BasicSlider slider = new BasicSlider();
125        return new Control[] {
126                slider
127        };
128    }
129
130    // TODO: need a better way to decide which representation
131    static boolean useCompact(Context context) {
132        WindowManager w = ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE));
133        Point size = new Point();
134        w.getDefaultDisplay().getSize(size);
135        if (size.x < size.y) { // if tall than wider
136            return true;
137        }
138        if (size.x < MINIMUM_WIDTH) {
139            return true;
140        }
141        if (size.y < MINIMUM_HEIGHT) {
142            return true;
143        }
144        return false;
145    }
146
147    protected Parameter getParameterToEdit(FilterRepresentation rep) {
148        if (this instanceof Parameter) {
149            return (Parameter) this;
150        } else if (rep instanceof Parameter) {
151            return ((Parameter) rep);
152        }
153        return null;
154    }
155
156    @Override
157    public void setUtilityPanelUI(View actionButton, View editControl) {
158        mActionButton = actionButton;
159        mEditControl = editControl;
160        FilterRepresentation rep = getLocalRepresentation();
161        Parameter param = getParameterToEdit(rep);
162        if (param != null) {
163            control(param, editControl);
164        } else {
165            mSeekBar = new SeekBar(editControl.getContext());
166            LayoutParams lp = new LinearLayout.LayoutParams(
167                    LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
168            mSeekBar.setLayoutParams(lp);
169            ((LinearLayout) editControl).addView(mSeekBar);
170            mSeekBar.setOnSeekBarChangeListener(this);
171        }
172    }
173
174    protected void control(Parameter p, View editControl) {
175        String pType = p.getParameterType();
176        Context context = editControl.getContext();
177        Class c = ((useCompact(context)) ? portraitMap : landscapeMap).get(pType);
178
179        if (c != null) {
180            try {
181                mControl = (Control) c.newInstance();
182                p.setController(mControl);
183                mControl.setUp((ViewGroup) editControl, p, this);
184            } catch (Exception e) {
185                Log.e(LOGTAG, "Error in loading Control ", e);
186            }
187        } else {
188            Log.e(LOGTAG, "Unable to find class for " + pType);
189            for (String string : portraitMap.keySet()) {
190                Log.e(LOGTAG, "for " + string + " use " + portraitMap.get(string));
191            }
192        }
193    }
194
195    @Override
196    public void onProgressChanged(SeekBar sbar, int progress, boolean arg2) {
197    }
198
199    @Override
200    public void onStartTrackingTouch(SeekBar arg0) {
201    }
202
203    @Override
204    public void onStopTrackingTouch(SeekBar arg0) {
205    }
206}
207