CategoryAdapter.java revision acc00f8fed8960b079448db8f05c3fbac8642ca4 
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.category;
18
19import android.content.Context;
20import android.util.Log;
21import android.view.LayoutInflater;
22import android.view.View;
23import android.view.ViewGroup;
24import android.widget.ArrayAdapter;
25import android.widget.ListView;
26
27import com.android.gallery3d.R;
28import com.android.gallery3d.filtershow.filters.FilterRepresentation;
29import com.android.gallery3d.filtershow.filters.FilterTinyPlanetRepresentation;
30import com.android.gallery3d.filtershow.filters.ImageFilterTinyPlanet;
31import com.android.gallery3d.filtershow.imageshow.MasterImage;
32import com.android.gallery3d.filtershow.presets.ImagePreset;
33import com.android.gallery3d.filtershow.ui.FilterIconButton;
34
35public class CategoryAdapter extends ArrayAdapter<Action> {
36
37    private static final String LOGTAG = "CategoryAdapter";
38    private int mItemHeight;
39    private View mContainer;
40    private int mItemWidth = ListView.LayoutParams.MATCH_PARENT;
41    private boolean mUseFilterIconButton = false;
42    private int mSelectedPosition;
43    int mCategory;
44    private int mOrientation;
45
46    public CategoryAdapter(Context context, int textViewResourceId) {
47        super(context, textViewResourceId);
48        mItemHeight = (int) (context.getResources().getDisplayMetrics().density * 100);
49    }
50
51    public CategoryAdapter(Context context) {
52        this(context, 0);
53    }
54
55    public void setItemHeight(int height) {
56        mItemHeight = height;
57    }
58
59    public void setItemWidth(int width) {
60        mItemWidth = width;
61    }
62
63    @Override
64    public void add(Action action) {
65        super.add(action);
66        action.setAdapter(this);
67    }
68
69    public void initializeSelection(int category) {
70        mCategory = category;
71        mSelectedPosition = -1;
72        if (category == MainPanel.LOOKS) {
73            mSelectedPosition = 0;
74        }
75        if (category == MainPanel.BORDERS) {
76            mSelectedPosition = 0;
77        }
78    }
79
80    @Override
81    public View getView(int position, View convertView, ViewGroup parent) {
82        if (mUseFilterIconButton) {
83            if (convertView == null) {
84                LayoutInflater inflater =
85                        (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
86                convertView = inflater.inflate(R.layout.filtericonbutton, parent, false);
87            }
88            FilterIconButton view = (FilterIconButton) convertView;
89            Action action = getItem(position);
90            view.setAction(action);
91            view.setup(action.getName(), null, this);
92            view.setLayoutParams(
93                    new ListView.LayoutParams(mItemWidth, mItemHeight));
94            view.setTag(position);
95            if (mCategory == MainPanel.LOOKS || mCategory == MainPanel.BORDERS) {
96                view.setBackgroundResource(0);
97            }
98            return view;
99        }
100        if (convertView == null) {
101            convertView = new CategoryView(getContext());
102        }
103        CategoryView view = (CategoryView) convertView;
104        view.setOrientation(mOrientation);
105        view.setAction(getItem(position), this);
106        view.setLayoutParams(
107                new ListView.LayoutParams(mItemWidth, mItemHeight));
108        view.setTag(position);
109        view.invalidate();
110        return view;
111    }
112
113    public void setSelected(View v) {
114        int old = mSelectedPosition;
115        mSelectedPosition = (Integer) v.getTag();
116        if (old != -1) {
117            invalidateView(old);
118        }
119        invalidateView(mSelectedPosition);
120    }
121
122    public boolean isSelected(View v) {
123        return (Integer) v.getTag() == mSelectedPosition;
124    }
125
126    private void invalidateView(int position) {
127        View child = null;
128        if (mContainer instanceof ListView) {
129            ListView lv = (ListView) mContainer;
130            child = lv.getChildAt(position - lv.getFirstVisiblePosition());
131        } else {
132            CategoryTrack ct = (CategoryTrack) mContainer;
133            child = ct.getChildAt(position);
134        }
135        if (child != null) {
136            child.invalidate();
137        }
138    }
139
140    public void setContainer(View container) {
141        mContainer = container;
142    }
143
144    public void imageLoaded() {
145        notifyDataSetChanged();
146    }
147
148    public void setUseFilterIconButton(boolean useFilterIconButton) {
149        mUseFilterIconButton = useFilterIconButton;
150    }
151
152    public boolean isUseFilterIconButton() {
153        return mUseFilterIconButton;
154    }
155
156    public FilterRepresentation getTinyPlanet() {
157        for (int i = 0; i < getCount(); i++) {
158            Action action = getItem(i);
159            if (action.getRepresentation() != null
160                    && action.getRepresentation()
161                    instanceof FilterTinyPlanetRepresentation) {
162                return action.getRepresentation();
163            }
164        }
165        return null;
166    }
167
168    public void removeTinyPlanet() {
169        for (int i = 0; i < getCount(); i++) {
170            Action action = getItem(i);
171            if (action.getRepresentation() != null
172                    && action.getRepresentation()
173                    instanceof FilterTinyPlanetRepresentation) {
174                remove(action);
175                return;
176            }
177        }
178    }
179
180    public void setOrientation(int orientation) {
181        mOrientation = orientation;
182    }
183
184    public void reflectImagePreset(ImagePreset preset) {
185        int selected = 0; // if nothing found, select "none" (first element)
186        FilterRepresentation rep = null;
187        if (mCategory == MainPanel.LOOKS) {
188            int pos = preset.getPositionForType(FilterRepresentation.TYPE_FX);
189            if (pos != -1) {
190                rep = preset.getFilterRepresentation(pos);
191            }
192        } else if (mCategory == MainPanel.BORDERS) {
193            int pos = preset.getPositionForType(FilterRepresentation.TYPE_BORDER);
194            if (pos != -1) {
195                rep = preset.getFilterRepresentation(pos);
196            }
197        }
198        if (rep != null) {
199            for (int i = 0; i < getCount(); i++) {
200                if (rep.getName().equalsIgnoreCase(
201                        getItem(i).getRepresentation().getName())) {
202                    selected = i;
203                }
204            }
205        }
206        if (mSelectedPosition != selected) {
207            mSelectedPosition = selected;
208            this.notifyDataSetChanged();
209        }
210
211    }
212}
213