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package lecho.lib.hellocharts.samples;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.support.v7.app.ActionBarActivity;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.Toast;
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import java.util.ArrayList;
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import java.util.List;
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import lecho.lib.hellocharts.gesture.ZoomType;
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import lecho.lib.hellocharts.listener.BubbleChartOnValueSelectListener;
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import lecho.lib.hellocharts.model.Axis;
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import lecho.lib.hellocharts.model.BubbleChartData;
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import lecho.lib.hellocharts.model.BubbleValue;
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import lecho.lib.hellocharts.model.ValueShape;
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import lecho.lib.hellocharts.util.ChartUtils;
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import lecho.lib.hellocharts.view.BubbleChartView;
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import lecho.lib.hellocharts.view.Chart;
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public class BubbleChartActivity extends ActionBarActivity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_bubble_chart);
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if (savedInstanceState == null) {
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getSupportFragmentManager().beginTransaction().add(R.id.container, new PlaceholderFragment()).commit();
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}
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}
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/**
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* A fragment containing a bubble chart.
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*/
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public static class PlaceholderFragment extends Fragment {
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private static final int BUBBLES_NUM = 8;
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private BubbleChartView chart;
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private BubbleChartData data;
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private boolean hasAxes = true;
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private boolean hasAxesNames = true;
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private ValueShape shape = ValueShape.CIRCLE;
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private boolean hasLabels = false;
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private boolean hasLabelForSelected = false;
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public PlaceholderFragment() {
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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setHasOptionsMenu(true);
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View rootView = inflater.inflate(R.layout.fragment_bubble_chart, container, false);
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chart = (BubbleChartView) rootView.findViewById(R.id.chart);
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chart.setOnValueTouchListener(new ValueTouchListener());
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generateData();
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return rootView;
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}
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@Override
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public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
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inflater.inflate(R.menu.bubble_chart, menu);
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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int id = item.getItemId();
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if (id == R.id.action_reset) {
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reset();
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generateData();
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return true;
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}
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if (id == R.id.action_shape_circles) {
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setCircles();
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return true;
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}
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if (id == R.id.action_shape_square) {
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setSquares();
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return true;
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}
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if (id == R.id.action_toggle_labels) {
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toggleLabels();
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return true;
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}
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if (id == R.id.action_toggle_axes) {
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toggleAxes();
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return true;
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}
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if (id == R.id.action_toggle_axes_names) {
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toggleAxesNames();
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return true;
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}
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if (id == R.id.action_animate) {
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prepareDataAnimation();
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chart.startDataAnimation();
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return true;
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}
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if (id == R.id.action_toggle_selection_mode) {
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toggleLabelForSelected();
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Toast.makeText(getActivity(),
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"Selection mode set to " + chart.isValueSelectionEnabled() + " select any point.",
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Toast.LENGTH_SHORT).show();
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return true;
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}
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if (id == R.id.action_toggle_touch_zoom) {
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chart.setZoomEnabled(!chart.isZoomEnabled());
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Toast.makeText(getActivity(), "IsZoomEnabled " + chart.isZoomEnabled(), Toast.LENGTH_SHORT).show();
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return true;
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}
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if (id == R.id.action_zoom_both) {
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chart.setZoomType(ZoomType.HORIZONTAL_AND_VERTICAL);
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return true;
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}
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if (id == R.id.action_zoom_horizontal) {
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chart.setZoomType(ZoomType.HORIZONTAL);
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return true;
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}
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if (id == R.id.action_zoom_vertical) {
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chart.setZoomType(ZoomType.VERTICAL);
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return true;
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}
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return super.onOptionsItemSelected(item);
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}
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private void reset() {
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hasAxes = true;
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hasAxesNames = true;
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shape = ValueShape.CIRCLE;
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hasLabels = false;
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hasLabelForSelected = false;
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chart.setValueSelectionEnabled(hasLabelForSelected);
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}
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private void generateData() {
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List<BubbleValue> values = new ArrayList<BubbleValue>();
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for (int i = 0; i < BUBBLES_NUM; ++i) {
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BubbleValue value = new BubbleValue(i, (float) Math.random() * 100, (float) Math.random() * 1000);
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value.setColor(ChartUtils.pickColor());
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value.setShape(shape);
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values.add(value);
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}
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data = new BubbleChartData(values);
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data.setHasLabels(hasLabels);
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data.setHasLabelsOnlyForSelected(hasLabelForSelected);
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if (hasAxes) {
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Axis axisX = new Axis();
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Axis axisY = new Axis().setHasLines(true);
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if (hasAxesNames) {
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axisX.setName("Axis X");
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axisY.setName("Axis Y");
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}
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data.setAxisXBottom(axisX);
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data.setAxisYLeft(axisY);
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} else {
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data.setAxisXBottom(null);
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data.setAxisYLeft(null);
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}
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chart.setBubbleChartData(data);
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}
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private void setCircles() {
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shape = ValueShape.CIRCLE;
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generateData();
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}
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private void setSquares() {
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shape = ValueShape.SQUARE;
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generateData();
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}
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private void toggleLabels() {
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hasLabels = !hasLabels;
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if (hasLabels) {
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hasLabelForSelected = false;
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chart.setValueSelectionEnabled(hasLabelForSelected);
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}
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generateData();
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}
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private void toggleLabelForSelected() {
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hasLabelForSelected = !hasLabelForSelected;
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chart.setValueSelectionEnabled(hasLabelForSelected);
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if (hasLabelForSelected) {
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hasLabels = false;
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}
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generateData();
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}
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private void toggleAxes() {
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hasAxes = !hasAxes;
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generateData();
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}
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private void toggleAxesNames() {
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hasAxesNames = !hasAxesNames;
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generateData();
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}
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/**
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* To animate values you have to change targets values and then call {@link Chart#startDataAnimation()}
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* method(don't confuse with View.animate()).
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*/
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private void prepareDataAnimation() {
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for (BubbleValue value : data.getValues()) {
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value.setTarget(value.getX() + (float) Math.random() * 4 * getSign(), (float) Math.random() * 100,
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(float) Math.random() * 1000);
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}
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}
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private int getSign() {
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int[] sign = new int[]{-1, 1};
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return sign[Math.round((float) Math.random())];
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}
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private class ValueTouchListener implements BubbleChartOnValueSelectListener {
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@Override
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public void onValueSelected(int bubbleIndex, BubbleValue value) {
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Toast.makeText(getActivity(), "Selected: " + value, Toast.LENGTH_SHORT).show();
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}
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@Override
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public void onValueDeselected() {
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// TODO Auto-generated method stub
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}
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}
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}
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}
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