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109 lines
3.5 KiB
109 lines
3.5 KiB
package com.henninghall.date_picker;
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import com.henninghall.date_picker.wheels.Wheel;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.Locale;
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public class WheelOrder
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{
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private final HashMap<WheelType, Wheel> wheelPerWheelType;
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private PickerView pickerView;
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private ArrayList<WheelType> orderedWheels;
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WheelOrder(final PickerView view) {
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this.pickerView = view;
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this.wheelPerWheelType = new HashMap<WheelType, Wheel>() {{
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put(WheelType.DAY, pickerView.dayWheel);
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put(WheelType.YEAR, pickerView.yearWheel);
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put(WheelType.MONTH, pickerView.monthWheel);
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put(WheelType.DATE, pickerView.dateWheel);
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put(WheelType.HOUR, pickerView.hourWheel);
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put(WheelType.MINUTE, pickerView.minutesWheel);
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put(WheelType.AM_PM, pickerView.ampmWheel);
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}};
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}
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private void updateAllWheels(final Locale locale) {
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try {
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this.orderedWheels = getOrderedWheels(locale);
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pickerView.wheelsWrapper.removeAllViews();
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for (int i = 0; i < wheelPerWheelType.size(); i++) {
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Wheel w = getWheels(i);
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if(w.visible()) {
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pickerView.wheelsWrapper.addView(w.picker);
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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void update(final Locale locale) {
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updateAllWheels(locale);
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pickerView.emptyWheelUpdater.update();
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}
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private Wheel getWheels(int index){
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return wheelPerWheelType.get(orderedWheels.get(index));
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}
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Wheel getVisibleWheel(int index){
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return getVisibleWheels().get(index);
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}
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private ArrayList<Wheel> getVisibleWheels() {
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ArrayList<Wheel> visibleOrderedWheels = new ArrayList<>();
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for (WheelType wheelType : orderedWheels){
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Wheel wheel = wheelPerWheelType.get(wheelType);
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if(wheel.visible()) {
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visibleOrderedWheels.add(wheel);
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}
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}
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return visibleOrderedWheels;
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}
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private ArrayList<WheelType> getOrderedWheels(Locale locale) throws Exception {
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String dateTimePattern = LocaleUtils.getDateTimePattern(locale);
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ArrayList<WheelType> unorderedTypes = new ArrayList(Arrays.asList(WheelType.values()));
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ArrayList<WheelType> orderedWheels = new ArrayList<>();
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// Always put day wheel first
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unorderedTypes.remove(WheelType.DAY);
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orderedWheels.add(WheelType.DAY);
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for (char ch : dateTimePattern.toCharArray()){
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try {
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WheelType wheelType = Utils.patternCharToWheelType(ch);
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if (unorderedTypes.contains(wheelType)) {
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unorderedTypes.remove(wheelType);
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orderedWheels.add(wheelType);
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}
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} catch (Exception e) {
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// ignore unknown pattern chars that not correspond to any wheel type
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}
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}
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// If AM/PM wheel remains it means that the locale does not have AM/PM by default and it
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// should be put last.
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if(unorderedTypes.contains(WheelType.AM_PM)){
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unorderedTypes.remove(WheelType.AM_PM);
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orderedWheels.add(WheelType.AM_PM);
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}
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if(!unorderedTypes.isEmpty()) {
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throw new Exception(unorderedTypes.size() + " wheel types cannot be ordered. Wheel type 0: " + unorderedTypes.get(0));
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}
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return orderedWheels;
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}
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}
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