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      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.util.AttributeSet;
     21 import android.util.Log;
     22 import android.view.LayoutInflater;
     23 import android.view.Menu;
     24 import android.view.MenuItem;
     25 import android.view.View;
     26 import android.view.ViewGroup;
     27 import android.widget.Button;
     28 import android.widget.FrameLayout;
     29 import android.widget.LinearLayout;
     30 import android.widget.PopupMenu;
     31 import android.widget.SeekBar;
     32 import android.widget.SeekBar.OnSeekBarChangeListener;
     33 
     34 import com.android.gallery3d.R;
     35 import com.android.gallery3d.filtershow.cache.ImageLoader;
     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.presets.ImagePreset;
     41 
     42 /**
     43  * Base class for Editors Must contain a mImageShow and a top level view
     44  */
     45 public class Editor implements OnSeekBarChangeListener, SwapButton.SwapButtonListener {
     46     protected Context mContext;
     47     protected View mView;
     48     protected ImageShow mImageShow;
     49     protected FrameLayout mFrameLayout;
     50     protected SeekBar mSeekBar;
     51     Button mEditTitle;
     52     protected Button mFilterTitle;
     53     protected int mID;
     54     private final String LOGTAG = "Editor";
     55     protected FilterRepresentation mLocalRepresentation = null;
     56     protected byte mShowParameter = SHOW_VALUE_UNDEFINED;
     57     private Button mButton;
     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 static void hackFixStrings(Menu menu) {
     63         int count = menu.size();
     64         for (int i = 0; i < count; i++) {
     65             MenuItem item = menu.getItem(i);
     66             item.setTitle(item.getTitle().toString().toUpperCase());
     67         }
     68     }
     69 
     70     public String calculateUserMessage(Context context, String effectName, Object parameterValue) {
     71         return effectName.toUpperCase() + " " + parameterValue;
     72     }
     73 
     74     protected Editor(int id) {
     75         mID = id;
     76     }
     77 
     78     public int getID() {
     79         return mID;
     80     }
     81 
     82     public byte showParameterValue() {
     83         return mShowParameter;
     84     }
     85 
     86     public boolean showsSeekBar() {
     87         return true;
     88     }
     89 
     90     public void setUpEditorUI(View actionButton, View editControl,
     91                               Button editTitle, Button stateButton) {
     92         mEditTitle = editTitle;
     93         mFilterTitle = stateButton;
     94         mButton = editTitle;
     95         setMenuIcon(true);
     96         setUtilityPanelUI(actionButton, editControl);
     97     }
     98 
     99     public boolean showsPopupIndicator() {
    100         return true;
    101     }
    102 
    103     /**
    104      * @param actionButton the would be the area for menu etc
    105      * @param editControl this is the black area for sliders etc
    106      */
    107     public void setUtilityPanelUI(View actionButton, View editControl) {
    108 
    109         AttributeSet aset;
    110         Context context = editControl.getContext();
    111         LayoutInflater inflater =
    112                 (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    113         LinearLayout lp = (LinearLayout) inflater.inflate(
    114                 R.layout.filtershow_seekbar, (ViewGroup) editControl, true);
    115         mSeekBar = (SeekBar) lp.findViewById(R.id.primarySeekBar);
    116         mSeekBar.setOnSeekBarChangeListener(this);
    117 
    118         if (showsSeekBar()) {
    119             mSeekBar.setOnSeekBarChangeListener(this);
    120             mSeekBar.setVisibility(View.VISIBLE);
    121         } else {
    122             mSeekBar.setVisibility(View.INVISIBLE);
    123         }
    124 
    125         if (mButton != null) {
    126             if (showsPopupIndicator()) {
    127                 mButton.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0,
    128                         R.drawable.filtershow_menu_marker, 0);
    129             } else {
    130                 mButton.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         if (mButton != null) {
    218             updateText();
    219         }
    220     }
    221 
    222     protected void updateText() {
    223         String s = "";
    224         if (mLocalRepresentation != null) {
    225             s = mContext.getString(mLocalRepresentation.getTextId());
    226         }
    227         mButton.setText(calculateUserMessage(mContext, s, ""));
    228     }
    229 
    230     /**
    231      * called after the filter is set and the select is called
    232      */
    233     public void reflectCurrentFilter() {
    234         mLocalRepresentation = null;
    235         FilterRepresentation representation = getLocalRepresentation();
    236         if (representation != null && mFilterTitle != null && representation.getTextId() != 0) {
    237             String text = mContext.getString(representation.getTextId()).toUpperCase();
    238             mFilterTitle.setText(text);
    239             updateText();
    240         }
    241     }
    242 
    243     public boolean useUtilityPanel() {
    244         return true;
    245     }
    246 
    247     public void openUtilityPanel(LinearLayout mAccessoryViewList) {
    248         setMenuIcon(false);
    249         if (mImageShow != null) {
    250             mImageShow.openUtilityPanel(mAccessoryViewList);
    251         }
    252     }
    253 
    254     protected void setMenuIcon(boolean on) {
    255         mEditTitle.setCompoundDrawablesRelativeWithIntrinsicBounds(
    256                 0, 0, on ? R.drawable.filtershow_menu_marker : 0, 0);
    257     }
    258 
    259     protected void createMenu(int[] strId, View button) {
    260         PopupMenu pmenu = new PopupMenu(mContext, button);
    261         Menu menu = pmenu.getMenu();
    262         for (int i = 0; i < strId.length; i++) {
    263             menu.add(Menu.NONE, Menu.FIRST + i, 0, mContext.getString(strId[i]));
    264         }
    265         setMenuIcon(true);
    266 
    267     }
    268 
    269     public Control[] getControls() {
    270         return null;
    271     }
    272     @Override
    273     public void onStartTrackingTouch(SeekBar arg0) {
    274 
    275     }
    276 
    277     @Override
    278     public void onStopTrackingTouch(SeekBar arg0) {
    279 
    280     }
    281 
    282     @Override
    283     public void swapLeft(MenuItem item) {
    284 
    285     }
    286 
    287     @Override
    288     public void swapRight(MenuItem item) {
    289 
    290     }
    291 
    292     public void detach() {
    293         if (mImageShow != null) {
    294             mImageShow.unselect();
    295         }
    296     }
    297 }
    298