Android Open Source - dbfragments Foreign

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2013 Yuriy Tkachenko//from   ww w .j a v  a2s  .c  o m
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package db.fragments;

import java.util.ArrayList;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.FragmentTransaction;
import android.content.Context;
import android.graphics.Color;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;

/**
 * The Foreign class implements viewing fields from other DBFragment
 * implementations (defined as column.foreign).
 */
public class Foreign extends LinearLayout implements Control,
    DialogItemsFragment.onDlgListClick {

  TextView edit;
  Button button;
  DialogItemsFragment _dialog;
  Long keyid;
  boolean readonly;
  Column.Foreign foreign;
  Activity activity;
  DBFragment parentFragment = null;
  private boolean changed = false;

  // private boolean changedBySetText = false;

  public Foreign(Context context) {
    super(context);
    this.setGravity(Gravity.FILL);
  }

  public static Foreign newInstance(Context parent, boolean readonly,
      Column.Foreign foreign, DBFragment parentFragment) {
    Foreign f = newInstance(parent, readonly, foreign);
    f.parentFragment = parentFragment;
    return f;
  }

  public static Foreign newInstance(Context parent, boolean readonly,
      Column.Foreign foreign) {
    Foreign f = new Foreign(parent);
    f.activity = (Activity) parent;
    f.foreign = foreign;

    f.edit = new TextView(parent);
    f.edit.setTextColor(Color.BLACK);
    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
        LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    params.weight = 1;
    f.edit.setLayoutParams(params);

    f.button = new Button(parent, null, android.R.attr.buttonStyleSmall);
    f.button.setText(" .. ");
    if (readonly) {
      f._dialog = null;
    } else {
      f.button.setOnClickListener(f.on_click);
      f._dialog = DialogItemsFragment.newInstance(f, foreign);
      f._dialog.setCancelable(true);
    }
    f.keyid = (long) 0;
    f.addView(f.edit);
    f.addView(f.button);
    f.foreign = foreign;

    return f;
  }

  private View.OnClickListener on_click = new View.OnClickListener() {
    @SuppressLint("CommitTransaction")
    public void onClick(View v) {
      DBFragment fdbfragment = _dialog.dbfragment;

      _dialog.search_column_number = fdbfragment.columns
          .indexOf(foreign.keyField);
      _dialog.search_column_value = keyid.toString();

      _dialog.parentFragment = parentFragment;

      FragmentTransaction ft = activity.getFragmentManager()
          .beginTransaction();

      _dialog.show(ft, "listdialog");
      // ft.commit();
    }
  };

  @Override
  public void onLstItemSelected(ArrayList<String> selection) {// list dialog
                                // fragment
                                // interface
    DBFragment fdba = foreign.dbfragment;
    int key_pos = fdba.columns.indexOf(foreign.keyField);
    int str_pos = fdba.columns.indexOf(foreign.showField);
    edit.setText(selection.get(key_pos) + " " + selection.get(str_pos));
    changed = true;
  }

  @Override
  public CharSequence getText() {
    return edit.getText();
  }

  @Override
  public void setText(CharSequence text) {
    String itxt;
    if (text == null) {
      itxt = "null";
    } else {
      String[] tl = text.toString().split(" ");
      itxt = (tl.length == 0) ? "null" : tl[0];
    }
    edit.setText(text);
    keyid = (itxt.equals("null") || itxt.equals("")) ? 0 : Long
        .parseLong(itxt);
    changed = false;
    // changedBySetText = true;
  }

  @Override
  public boolean isChanged() {
    return changed;
  }
}

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