edu.htl3r.schoolplanner.gui.timetable.WeekViewPageAdapter.java Source code

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Here is the source code for edu.htl3r.schoolplanner.gui.timetable.WeekViewPageAdapter.java

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/* SchoolPlanner4Untis - Android app to manage your Untis timetable
Copyright (C) 2011  Mathias Kub <mail@makubi.at>
     Sebastian Chlan <sebastian@schoolplanner.at>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package edu.htl3r.schoolplanner.gui.timetable;

import android.content.Context;
import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.widget.ScrollView;
import edu.htl3r.schoolplanner.DateTime;
import edu.htl3r.schoolplanner.backend.preferences.Settings;
import edu.htl3r.schoolplanner.gui.timetable.GUIData.GUIWeek;
import edu.htl3r.schoolplanner.gui.timetable.TransportClasses.InputTransferObject;
import edu.htl3r.schoolplanner.gui.timetable.Week.WeekLayout;

public class WeekViewPageAdapter extends PagerAdapter implements ViewPagerIndicator.PageInfoProvider {

    public final static int NUM_SCREENS = 100;

    private DateTime date;
    private Context context;
    private int oldpos = NUM_SCREENS / 2;
    private WeekLayout view_cach[] = new WeekLayout[NUM_SCREENS];
    private BlockingDownloadQueue downloadschlange = new BlockingDownloadQueue();

    public void setDate(DateTime dt) {
        date = dt;
    }

    public synchronized void setWeeData(GUIWeek data, int pos) {
        if (!view_cach[pos].isDataHere() && data != null) {
            view_cach[pos].setWeekData(data);
        }
    }

    public void setContext(Context c, BlockingDownloadQueue bd, WeekView wv, Settings settings) {
        context = c;
        downloadschlange = bd;
        for (int i = 0; i < view_cach.length; i++) {
            view_cach[i] = new WeekLayout(context, i, wv, settings);
        }
    }

    @Override
    public void destroyItem(View collection, int arg1, Object view) {
        ScrollView s = (ScrollView) view;
        s.removeAllViews();
        ((ViewPager) collection).removeView(s);
    }

    @Override
    public void finishUpdate(View arg0) {
    }

    @Override
    public int getCount() {
        return NUM_SCREENS;
    }

    @Override
    public synchronized View instantiateItem(View collection, int position) {

        int di = position - 50;

        DateTime ad = new DateTime();
        ad.set(date.getDay() + (di * 7), date.getMonth(), date.getYear());

        InputTransferObject input = new InputTransferObject(ad, position);

        if (!view_cach[position].isDataHere()) {
            downloadschlange.add(input);
        }

        ViewPager tmp = (ViewPager) collection;

        tmp.removeView((ScrollView) view_cach[position].getParent());

        oldpos = position;

        ScrollView scr = new ScrollView(context);
        scr.addView(view_cach[position]);
        tmp.addView(scr);

        return scr;

    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == (View) object;
    }

    @Override
    public void restoreState(Parcelable arg0, ClassLoader arg1) {
    }

    @Override
    public Parcelable saveState() {
        return null;
    }

    @Override
    public void startUpdate(View arg0) {
    }

    public int getItemPosition(Object object) {
        return POSITION_NONE;
    }

    public int getPosition() {
        return oldpos - 1;
    }

    @Override
    public String getTitle(int pos) {
        int di = pos - 50;
        DateTime ad = new DateTime();
        ad.set(date.getDay() + (di * 7), date.getMonth(), date.getYear());
        return ad.getDay() + "." + ad.getMonth() + "." + ad.getYear();
    }

    public void reset(WeekView wv, Settings settings) {
        view_cach = new WeekLayout[NUM_SCREENS];
        for (int i = 0; i < view_cach.length; i++) {
            view_cach[i] = new WeekLayout(context, i, wv, settings);
        }
    }

}