src/eu/alefzero/owncloud/PathLayout.java

   1 package eu.alefzero.owncloud;
   2
   3 import java.util.LinkedList;
   4 import java.util.Stack;
   5
   6 import android.content.Context;
   7 import android.util.AttributeSet;
   8 import android.widget.HorizontalScrollView;
   9 import android.widget.ImageView;
  10 import android.widget.LinearLayout;
  11 import android.widget.ScrollView;
  12 import android.widget.TextView;
  13
  14 public class PathLayout extends LinearLayout {
  15
  16   private LinkedList<String> paths;
  17   ScrollView internalScroll;
  18   LinearLayout view;
  19
  20   public PathLayout(Context context) {
  21     super(context);
  22     initialize();
  23   }
  24
  25   public PathLayout(Context context, AttributeSet attrs) {
  26     super(context, attrs);
  27     initialize();
  28   }
  29
  30   public String pop() {
  31     if (paths.size() == 0) {
  32       return null;
  33     }
  34     int start = paths.size()*2-2;
  35     int count = 2;
  36     if (paths.size() == 1) {
  37       start++;
  38       count--;
  39     }
  40     view.removeViews(start, count);
  41     return paths.removeLast();
  42   }
  43
  44   public void addPath(String path) {
  45     for (String s : path.split("/")) if (s.length() != 0) push(s);
  46   }
  47
  48   public void push(String path) {
  49     // its weird that we cannot declare static imgView as path separator
  50     if (paths.size() != 0) {
  51       ImageView iv = new ImageView(getContext());
  52       iv.setImageDrawable(getResources().getDrawable(R.drawable.breadcrumb));
  53       iv.setPadding(2, 0, 2, 0);
  54       view.addView(iv);
  55     }
  56     TextView tv = new TextView(getContext());
  57     tv.setLayoutParams(getLayoutParams());
  58     tv.setText(path);
  59     view.addView(tv);
  60     HorizontalScrollView hsv = (HorizontalScrollView) internalScroll.getChildAt(0);
  61     hsv.smoothScrollTo(hsv.getMaxScrollAmount()*2, 0);
  62     paths.addLast(path);
  63   }
  64
  65   public String peek() {
  66     return paths.peek();
  67   }
  68
  69   public String getFullPath() {
  70     String ret = new String();
  71     for (int i = 0; i < paths.size(); i++) {
  72       ret += "/" + paths.get(i);
  73     }
  74     return ret;
  75   }
  76
  77   private void initialize() {
  78     paths = new LinkedList<String>();
  79     internalScroll = new ScrollView(getContext());
  80     internalScroll.setFillViewport(true);
  81     HorizontalScrollView hsv = new HorizontalScrollView(getContext());
  82     hsv.setSmoothScrollingEnabled(true);
  83     internalScroll.addView(hsv);
  84     view = new LinearLayout(getContext());
  85     addView(internalScroll);
  86     hsv.addView(view);
  87     ImageView iv = new ImageView(getContext());
  88     iv.setImageDrawable(getResources().getDrawable(R.drawable.breadcrumb));
  89     view.addView(iv);
  90   }
  91
  92 }