Android Open Source - Tree-Task Html Tree Builder

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License

The source code is released under:
Apache License
If you think the Android project Tree-Task listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.ghsoft.treetaskapp;
/*ww w.ja  v  a2s  .c  o m*/
import java.math.BigInteger;
import java.security.SecureRandom;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;

import com.ghsoft.treetask.R;
import com.ghsoft.treetask.Task;
import com.ghsoft.treetask.TaskLeaf;
import com.ghsoft.treetask.TaskNode;

public class HtmlTreeBuilder {

  private Task task;
  private SecureRandom random;
  private String progBarColor;

  @SuppressLint("TrulyRandom")
  public HtmlTreeBuilder(Task task, Context context) {
    this.task = task;
    this.random = new SecureRandom();
    
    SharedPreferences general = PreferenceManager.getDefaultSharedPreferences(context);
    int color = general.getInt("prog_color", context.getResources().getColor(R.color.progDefault));
    progBarColor = String.format("#%06X", 0xFFFFFF & color);
  }

  private String getUrl(Task t) {
    String out = "";

    if (!t.isHead()) {
      TaskNode tn = (TaskNode) t.getParent();
      out += getUrl(tn);
      int index = tn.getChildren().indexOf(t);
      out += "," + String.valueOf(index);
      return out;
    }
    return "";
  }

  private String getFullUrl(Task t) {
    return "root" + getUrl(t);
  }

  public String getHtml() {

    String out = "";

    out += "<!DOCTYPE html><html><body>";

    out += "<link rel='stylesheet' type='text/css' href='treeView.css'>";

    out += "<div>";
    out += drawNode((TaskNode) task);

    out += "</div>";

    out += "</body></html>";

    return out;
  }

  private String drawNode(TaskNode t) {

    String out = "";

    String rndID = new BigInteger(130, random).toString(32);
    rndID = rndID.replaceAll("[0-9]", "");

    
    out += "<div class='wrapper'>";

    out += "<a href='" + getFullUrl(t) + "'>";
    out += "<div class='node' style='background:" + String.format("#%06X", 0xFFFFFF & t.getColor()) + "'>";
    if (t.completion() == 100)
      out += "<div class='taskNameFinished'>";
    else
      out += "<div class='taskName'>";
    out += t.getName();
    out += "<br>";
    out += "</div>";

    if (t.completion() == 100)
      out += "<div class='taskDescriptionFinished'>";
    else
      out += "<div class='taskDescription'>";
    out += t.getDescription();
    out += "</div>";

    out += "<style type='text/css'>";
    out += "    #" + rndID + " {";
    out += "        width:" + t.completion() + "%";
    out += "    }";
    out += "</style>";

    out += "<div class='progressBackground'>";
    out += "    <div id='" + rndID + "' class='progress' style='background:" + progBarColor + ";'></div>";
    out += "</div>";
    out += "<div class='progText'>";
    out += t.completion() + "%";
    out += "</div>";
    out += "</div>";
    out += "</a>";

    out += triangle;

    out += "<div class='children'>";

    for (int i = 0; i < t.numChildren(); i++) {
      if (t.getChild(i) instanceof TaskNode) {
        out += drawNode((TaskNode) t.getChild(i));
      } else {
        out += drawLeaf((TaskLeaf) t.getChild(i));
      }
    }

    out += " </div>";
    out += " </div>";

    return out;
  }

  private String drawLeaf(TaskLeaf t) {

    String out = "";
    out += "<div>";
    out += "<a href='" + getFullUrl(t.getParent()) + "'>";
    out += "<div class='node' style='background:" + String.format("#%06X", 0xFFFFFF & t.getColor()) + "'>";

    if (t.completion() == 100)
      out += "<div class='taskNameFinished'>";
    else
      out += "<div class='taskName'>";

    out += t.getName();
    out += "<br>";
    out += "</div>";

    if (t.completion() == 100)
      out += "<div class='taskDescriptionFinished'>";
    else
      out += "<div class='taskDescription'>";
    out += t.getDescription();
    out += "</div>";

    out += "</div>";
    out += "</a>";
    out += "</div>";

    return out;
  }

  private static String triangle = "<div class='tri'><div class='triangle'></div></div>";

}
Java Source Code List
