src/eu/alefzero/owncloud/ui/fragment/PathLayout.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18 package eu.alefzero.owncloud.ui.fragment;
  19
  20 import java.util.LinkedList;
  21 import java.util.Stack;
  22
  23 import eu.alefzero.owncloud.R;
  24 import eu.alefzero.owncloud.R.drawable;
  25
  26 import android.content.Context;
  27 import android.util.AttributeSet;
  28 import android.widget.HorizontalScrollView;
  29 import android.widget.ImageView;
  30 import android.widget.LinearLayout;
  31 import android.widget.ScrollView;
  32 import android.widget.TextView;
  33
  34 /**
  35  * Part of the ActionBar Layout
  36  * @author Bartek Przybylski
  37  *
  38  */
  39 public class PathLayout extends LinearLayout {
  40
  41   private LinkedList<String> paths;
  42   ScrollView internalScroll;
  43   LinearLayout view;
  44
  45   public PathLayout(Context context) {
  46     super(context);
  47     initialize();
  48   }
  49
  50   public PathLayout(Context context, AttributeSet attrs) {
  51     super(context, attrs);
  52     initialize();
  53   }
  54
  55   public String pop() {
  56     if (paths.size() == 0) {
  57       return null;
  58     }
  59     int start = paths.size()*2-2;
  60     int count = 2;
  61     if (paths.size() == 1) {
  62       start++;
  63       count--;
  64     }
  65     view.removeViews(start, count);
  66     return paths.removeLast();
  67   }
  68
  69   public void addPath(String path) {
  70     for (String s : path.split("/")) if (s.length() != 0) push(s);
  71   }
  72
  73   public void push(String path) {
  74     // its weird that we cannot declare static imgView as path separator
  75     if (paths.size() != 0) {
  76       ImageView iv = new ImageView(getContext());
  77       iv.setImageDrawable(getResources().getDrawable(R.drawable.breadcrumb));
  78       iv.setPadding(2, 0, 2, 0);
  79       view.addView(iv);
  80     }
  81     TextView tv = new TextView(getContext());
  82     tv.setLayoutParams(getLayoutParams());
  83     tv.setText(path);
  84     view.addView(tv);
  85     HorizontalScrollView hsv = (HorizontalScrollView) internalScroll.getChildAt(0);
  86     hsv.smoothScrollTo(hsv.getMaxScrollAmount()*2, 0);
  87     paths.addLast(path);
  88   }
  89
  90   public String peek() {
  91     return paths.peek();
  92   }
  93
  94   public String getFullPath() {
  95     String ret = new String();
  96     for (int i = 0; i < paths.size(); i++) {
  97       ret += "/" + paths.get(i);
  98     }
  99     return ret;
 100   }
 101
 102   private void initialize() {
 103     paths = new LinkedList<String>();
 104     internalScroll = new ScrollView(getContext());
 105     internalScroll.setFillViewport(true);
 106     HorizontalScrollView hsv = new HorizontalScrollView(getContext());
 107     hsv.setSmoothScrollingEnabled(true);
 108     internalScroll.addView(hsv);
 109     view = new LinearLayout(getContext());
 110     addView(internalScroll);
 111     hsv.addView(view);
 112     ImageView iv = new ImageView(getContext());
 113     iv.setImageDrawable(getResources().getDrawable(R.drawable.breadcrumb));
 114     view.addView(iv);
 115   }
 116
 117 }