ingo@42: package de.intevation.flys.client.client.ui;
ingo@42: 
ingo@42: import java.util.LinkedHashMap;
ingo@42: 
ingo@42: import com.google.gwt.core.client.GWT;
ingo@42: 
ingo@42: import com.smartgwt.client.widgets.Canvas;
ingo@42: import com.smartgwt.client.widgets.IButton;
ingo@42: import com.smartgwt.client.widgets.Label;
ingo@42: import com.smartgwt.client.widgets.form.DynamicForm;
ingo@42: import com.smartgwt.client.widgets.form.fields.FormItem;
ingo@42: import com.smartgwt.client.widgets.form.fields.RadioGroupItem;
ingo@42: import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
ingo@42: import com.smartgwt.client.widgets.form.fields.events.BlurEvent;
ingo@42: import com.smartgwt.client.widgets.form.fields.events.ChangeHandler;
ingo@42: import com.smartgwt.client.widgets.form.fields.events.ChangeEvent;
ingo@42: import com.smartgwt.client.widgets.layout.VLayout;
ingo@42: 
ingo@42: import de.intevation.flys.client.shared.model.Data;
ingo@47: import de.intevation.flys.client.shared.model.DataItem;
ingo@47: import de.intevation.flys.client.shared.model.DefaultData;
ingo@47: import de.intevation.flys.client.shared.model.DefaultDataItem;
ingo@42: import de.intevation.flys.client.client.FLYSMessages;
ingo@42: 
ingo@42: 
ingo@42: /**
ingo@42:  * This UIProvider creates a widget to enter W or Q data.
ingo@42:  *
ingo@42:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@42:  */
ingo@42: public class WQInputPanel
ingo@42: extends      AbstractUIProvider
ingo@42: implements   ChangeHandler, BlurHandler
ingo@42: {
ingo@42:     /** The message class that provides i18n strings.*/
ingo@42:     protected FLYSMessages MSG = GWT.create(FLYSMessages.class);
ingo@42: 
ingo@42: 
ingo@42:     /** The constant field name for choosing w or q mode.*/
ingo@42:     public static final String FIELD_WQ = "wq";
ingo@42: 
ingo@42:     /** The constant field value for W input mode.*/
ingo@42:     public static final String FIELD_WQ_W = "W";
ingo@42: 
ingo@42:     /** The constant field value for Q input mode.*/
ingo@42:     public static final String FIELD_WQ_Q = "Q";
ingo@42: 
ingo@42:     /** The constant field name for choosing single values or range.*/
ingo@42:     public static final String FIELD_MODE = "mode";
ingo@42: 
ingo@42:     /** The constant field value for single input mode.*/
ingo@42:     public static final String FIELD_MODE_SINGLE = "single";
ingo@42: 
ingo@42:     /** The constant field value for range input mode.*/
ingo@42:     public static final String FIELD_MODE_RANGE = "range";
ingo@42: 
ingo@42:     /** The constant value that determines the width of the left panel.*/
ingo@42:     public static final int WIDTH_LEFT = 200;
ingo@42: 
ingo@42: 
ingo@42:     /** The container that manages the w and q panels.*/
ingo@42:     protected VLayout container;
ingo@42: 
ingo@42:     /** The RadioGroupItem that determines the w/q input mode.*/
ingo@42:     protected DynamicForm modes;
ingo@42: 
ingo@42:     /** The 'from' value entered in the range W mode.*/
ingo@42:     protected double fromW;
ingo@42: 
ingo@42:     /** The 'to' value entered in the range W mode.*/
ingo@42:     protected double toW;
ingo@42: 
ingo@42:     /** The 'step' value entered in the range W mode.*/
ingo@42:     protected double stepW;
ingo@42: 
ingo@42:     /** The values entered in the single W mode.*/
ingo@42:     protected double[] valuesW;
ingo@42: 
ingo@42:     /** The 'from' value entered in the range Q mode.*/
ingo@42:     protected double fromQ;
ingo@42: 
ingo@42:     /** The 'to' value entered in the range Q mode.*/
ingo@42:     protected double toQ;
ingo@42: 
ingo@42:     /** The 'step' value entered in the range Q mode.*/
ingo@42:     protected double stepQ;
ingo@42: 
ingo@42:     /** The values entered in the single Q mode.*/
ingo@42:     protected double[] valuesQ;
ingo@42: 
ingo@42: 
ingo@42:     /**
ingo@42:      * Creates a new WQInputPanel instance.
ingo@42:      */
ingo@42:     public WQInputPanel() {
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     /**
ingo@42:      * This method calls createWidget and puts a 'next' button to the bottom.
ingo@42:      *
ingo@42:      * @param data The data that is displayed.
ingo@42:      *
ingo@42:      * @return the widget.
ingo@42:      */
ingo@42:     public Canvas create(Data data) {
ingo@42:         Canvas  widget = createWidget(data);
ingo@45:         IButton submit = new IButton(MSG.next(), this);
ingo@42:         Label   label  = new Label(MSG.wqTitle());
ingo@42: 
ingo@42:         label.setHeight(25);
ingo@42: 
ingo@42:         VLayout layout = new VLayout();
ingo@42:         layout.addMember(label);
ingo@42:         layout.addMember(widget);
ingo@42:         layout.addMember(submit);
ingo@42: 
ingo@42:         return layout;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     /**
ingo@42:      * This method creates the whole widget. There is a panel on the left, that
ingo@42:      * allows the user to enter values manually by keyboard. On the right, there
ingo@42:      * is a table that allows the user to enter values by mouse click.
ingo@42:      *
ingo@42:      * @param data The data that is displayed in the table on the right.
ingo@42:      *
ingo@42:      * @return the widget.
ingo@42:      */
ingo@42:     protected Canvas createWidget(Data data) {
ingo@42:         VLayout layout  = new VLayout();
ingo@42:         container       = new VLayout();
ingo@42:         Canvas modeForm = createModePanel();
ingo@42: 
ingo@42:         layout.addMember(modeForm);
ingo@42:         layout.addMember(container);
ingo@42: 
ingo@42:         // TODO add a table on the right to select Q values
ingo@42: 
ingo@42:         return layout;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     /**
ingo@42:      * This method creates the mode panel. It contains two radio button panels
ingo@42:      * that allows the user to switch the input mode between w/q and
ingo@42:      * single/range input.
ingo@42:      *
ingo@42:      * @return a panel.
ingo@42:      */
ingo@42:     protected Canvas createModePanel() {
ingo@42:         RadioGroupItem wq = new RadioGroupItem(FIELD_WQ);
ingo@42:         wq.setShowTitle(false);
ingo@42:         wq.setVertical(false);
ingo@42:         wq.setWidth(WIDTH_LEFT);
ingo@42: 
ingo@42:         RadioGroupItem mode = new RadioGroupItem(FIELD_MODE);
ingo@42:         mode.setShowTitle(false);
ingo@42:         mode.setVertical(false);
ingo@42:         mode.setWidth(WIDTH_LEFT);
ingo@42: 
ingo@42:         LinkedHashMap wqValues = new LinkedHashMap();
ingo@42:         wqValues.put(FIELD_WQ_W, MSG.wqW());
ingo@42:         wqValues.put(FIELD_WQ_Q, MSG.wqQ());
ingo@42: 
ingo@42:         LinkedHashMap modeValues = new LinkedHashMap();
ingo@42:         modeValues.put(FIELD_MODE_SINGLE, MSG.wqSingle());
ingo@42:         modeValues.put(FIELD_MODE_RANGE, MSG.wqRange());
ingo@42: 
ingo@42:         wq.setValueMap(wqValues);
ingo@42:         mode.setValueMap(modeValues);
ingo@42: 
ingo@42:         wq.addChangeHandler(this);
ingo@42:         mode.addChangeHandler(this);
ingo@42: 
ingo@42:         modes = new DynamicForm();
ingo@42:         modes.setFields(wq, mode);
ingo@42:         modes.setWidth(WIDTH_LEFT);
ingo@42:         modes.setNumCols(1);
ingo@42: 
ingo@42:         LinkedHashMap initial = new LinkedHashMap();
ingo@42:         initial.put(FIELD_WQ, FIELD_WQ_W);
ingo@42:         initial.put(FIELD_MODE, FIELD_MODE_SINGLE);
ingo@42:         modes.setValues(initial);
ingo@42: 
ingo@42:         return modes;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     /**
ingo@42:      * This method returns the selected data.
ingo@42:      *
ingo@42:      * @return the selected/inserted data.
ingo@42:      */
ingo@42:     public Data[] getData() {
ingo@47:         return new Data[] {
ingo@47:             getDataMode(),
ingo@47:             getDataFrom(),
ingo@47:             getDataTo(),
ingo@47:             getDataStep() };
ingo@47:     }
ingo@42: 
ingo@47: 
ingo@47:     /**
ingo@47:      * Returns the Data object for the 'mode' attribute.
ingo@47:      *
ingo@47:      * @return the Data object for the 'mode' attribute.
ingo@47:      */
ingo@47:     protected Data getDataMode() {
ingo@47:         String wqMode = modes.getValueAsString(FIELD_WQ);
ingo@47:         DataItem item = new DefaultDataItem("wq_mode", "wq_mode", wqMode);
ingo@47:         return new DefaultData(
ingo@47:             "wq_mode", null, null, new DataItem[] { item }, null);
ingo@47:     }
ingo@47: 
ingo@47: 
ingo@47:     /**
ingo@47:      * Returns the Data object for the 'from' attribute.
ingo@47:      *
ingo@47:      * @return the Data object for the 'from' attribute.
ingo@47:      */
ingo@47:     protected Data getDataFrom() {
ingo@47:         String value  = Double.valueOf(getFinalFrom()).toString();
ingo@47:         DataItem item = new DefaultDataItem("wq_from", "wq_from", value);
ingo@47:         return new DefaultData(
ingo@47:             "wq_from", null, null, new DataItem[] { item }, null);
ingo@47:     }
ingo@47: 
ingo@47: 
ingo@47:     /**
ingo@47:      * Returns the Data object for the 'to' attribute.
ingo@47:      *
ingo@47:      * @return the Data object for the 'to' attribute.
ingo@47:      */
ingo@47:     protected Data getDataTo() {
ingo@47:         String value  = Double.valueOf(getFinalTo()).toString();
ingo@47:         DataItem item = new DefaultDataItem("wq_to", "wq_to", value);
ingo@47:         return new DefaultData(
ingo@47:             "wq_to", null, null, new DataItem[] { item }, null);
ingo@47:     }
ingo@47: 
ingo@47: 
ingo@47:     /**
ingo@47:      * Returns the Data object for the 'step' attribute.
ingo@47:      *
ingo@47:      * @return the Data object for the 'step' attribute.
ingo@47:      */
ingo@47:     protected Data getDataStep() {
ingo@47:         String value  = Double.valueOf(getFinalStep()).toString();
ingo@47:         DataItem item = new DefaultDataItem("wq_step","wq_step", value);
ingo@47:         return new DefaultData(
ingo@47:             "wq_step", null, null, new DataItem[] { item }, null);
ingo@47:     }
ingo@47: 
ingo@47: 
ingo@47:     /**
ingo@47:      * Returns the value of 'from' depending on the selected input mode.
ingo@47:      *
ingo@47:      * @return the value of 'from' depending on the selected input mode.
ingo@47:      */
ingo@47:     protected double getFinalFrom() {
ingo@47:         boolean wMode     = isWMode();
ingo@47:         boolean rangeMode = isRangeMode();
ingo@47: 
ingo@47:         if (rangeMode) {
ingo@47:             return wMode ? getFromW() : getFromQ();
ingo@47: 
ingo@47:         }
ingo@47:         else {
ingo@47:             double[] values = wMode ? getSingleW() : getSingleQ();
ingo@47:             double   value  = Double.MAX_VALUE;
ingo@47: 
ingo@47:             for (double v: values) {
ingo@47:                 value = value < v ? value : v;
ingo@47:             }
ingo@47: 
ingo@47:             return value;
ingo@47:         }
ingo@47:     }
ingo@47: 
ingo@47: 
ingo@47:     /**
ingo@47:      * Returns the value of 'to' depending on the selected input mode.
ingo@47:      *
ingo@47:      * @return the value of 'to' depending on the selected input mode.
ingo@47:      */
ingo@47:     protected double getFinalTo() {
ingo@47:         boolean wMode     = isWMode();
ingo@47:         boolean rangeMode = isRangeMode();
ingo@47: 
ingo@47:         if (rangeMode) {
ingo@47:             return wMode ? getToW() : getToQ();
ingo@47: 
ingo@47:         }
ingo@47:         else {
ingo@47:             double[] values = wMode ? getSingleW() : getSingleQ();
ingo@47:             double   value  = Double.MIN_VALUE;
ingo@47: 
ingo@47:             for (double v: values) {
ingo@47:                 value = value > v ? value : v;
ingo@47:             }
ingo@47: 
ingo@47:             return value;
ingo@47:         }
ingo@47:     }
ingo@47: 
ingo@47: 
ingo@47:     /**
ingo@47:      * Returns the value of 'step' depending on the selected input mode.
ingo@47:      *
ingo@47:      * @return the value of 'step' depending on the selected input mode.
ingo@47:      */
ingo@47:     protected double getFinalStep() {
ingo@47:         boolean wMode     = isWMode();
ingo@47:         boolean rangeMode = isRangeMode();
ingo@47: 
ingo@47:         if (rangeMode) {
ingo@47:             // we have no field to enter the 'step' attribute in the
ingo@47:             // range mode
ingo@47:             return 0.0;
ingo@47:         }
ingo@47:         else {
ingo@47:             if (wMode) {
ingo@47:                 return getStepW();
ingo@47:             }
ingo@47:             else {
ingo@47:                 // we have no field to enter the 'step' attribute in the
ingo@47:                 // range mode
ingo@47:                 return getStepQ();
ingo@47:             }
ingo@47:         }
ingo@47:     }
ingo@47: 
ingo@47: 
ingo@47:     /**
ingo@47:      * Determines the range/single mode.
ingo@47:      *
ingo@47:      * @return true if the range mode is activated.
ingo@47:      */
ingo@47:     public boolean isRangeMode() {
ingo@47:         String rMode = modes.getValueAsString(FIELD_MODE);
ingo@47: 
ingo@47:         return rMode.equals(FIELD_MODE_RANGE) ? true : false;
ingo@47:     }
ingo@47: 
ingo@47: 
ingo@47:     /**
ingo@47:      * Determines the w/q mode.
ingo@47:      *
ingo@47:      * @return true, if the W mode is activated.
ingo@47:      */
ingo@47:     public boolean isWMode() {
ingo@47:         String wq = modes.getValueAsString(FIELD_WQ);
ingo@47: 
ingo@47:         return wq.equals(FIELD_WQ_W) ? true : false;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     /**
ingo@42:      * This method changes the lower panel with the input fields depending on
ingo@42:      * the combination of the two radio button panels.
ingo@42:      *
ingo@42:      * @param event The ChangeEvent.
ingo@42:      */
ingo@42:     public void onChange(ChangeEvent event) {
ingo@42:         DynamicForm form = event.getForm();
ingo@42:         FormItem    item = event.getItem();
ingo@42: 
ingo@42:         String wqMode    = null;
ingo@42:         String inputMode = null;
ingo@42: 
ingo@42:         if (item.getFieldName().equals(FIELD_MODE)) {
ingo@42:             wqMode    = form.getValueAsString(FIELD_WQ);
ingo@42:             inputMode = (String) event.getValue();
ingo@42:         }
ingo@42:         else {
ingo@42:             wqMode    = (String) event.getValue();
ingo@42:             inputMode = form.getValueAsString(FIELD_MODE);
ingo@42:         }
ingo@42: 
ingo@42:         container.removeMembers(container.getMembers());
ingo@42: 
ingo@42:         Canvas newPanel = null;
ingo@42: 
ingo@42:         if (wqMode.equals(FIELD_WQ_W)) {
ingo@42:             if (inputMode.equals(FIELD_MODE_SINGLE)) {
ingo@42:                 // Single W mode
ingo@42:                 double[] values = getSingleW();
ingo@42: 
ingo@42:                 newPanel = new DoubleArrayPanel(
ingo@42:                     MSG.unitWSingle(), values, this);
ingo@42:             }
ingo@42:             else {
ingo@42:                 // Range W mode
ingo@42:                 double from = getFromW();
ingo@42:                 double to   = getToW();
ingo@42:                 double step = getStepW();
ingo@42: 
ingo@42:                 newPanel = new DoubleRangePanel(
ingo@42:                     MSG.unitWFrom(), MSG.unitWTo(), MSG.unitWStep(),
ingo@42:                     from, to, step,
ingo@42:                     250,
ingo@42:                     this);
ingo@42:             }
ingo@42:         }
ingo@42:         else {
ingo@42:             if (inputMode.equals(FIELD_MODE_SINGLE)) {
ingo@42:                 // Single Q mode
ingo@42:                 double[] values = getSingleQ();
ingo@42: 
ingo@42:                 newPanel = new DoubleArrayPanel(
ingo@42:                     MSG.unitQSingle(), values, this);
ingo@42:             }
ingo@42:             else {
ingo@42:                 // Range Q mode
ingo@42:                 double from = getFromQ();
ingo@42:                 double to   = getToQ();
ingo@42:                 double step = getStepQ();
ingo@42: 
ingo@42:                 newPanel = new DoubleRangePanel(
ingo@42:                     MSG.unitQFrom(), MSG.unitQTo(), MSG.unitQStep(),
ingo@42:                     from, to, step,
ingo@42:                     250,
ingo@42:                     this);
ingo@42:             }
ingo@42:         }
ingo@42: 
ingo@42:         container.addMember(newPanel);
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     /**
ingo@42:      * This method is called if the value of one of the input fields might have
ingo@42:      * changed. The entered values are validated and stored.
ingo@42:      *
ingo@42:      * @param event The BlurEvent.
ingo@42:      */
ingo@42:     public void onBlur(BlurEvent event) {
ingo@42:         DynamicForm form = event.getForm();
ingo@42:         FormItem    item = event.getItem();
ingo@42: 
ingo@42:         String wqMode    = (String) modes.getValue(FIELD_WQ);
ingo@42:         String inputMode = (String) modes.getValue(FIELD_MODE);
ingo@42: 
ingo@42:         if (wqMode.equals(FIELD_WQ_W)) {
ingo@42:             if (inputMode.equals(FIELD_MODE_SINGLE)) {
ingo@42:                 DoubleArrayPanel p = (DoubleArrayPanel) form;
ingo@42: 
ingo@42:                 if (p.validateForm(item)) {
ingo@42:                     setSingleW(p.getInputValues(item));
ingo@42:                 }
ingo@42:             }
ingo@42:             else {
ingo@42:                 DoubleRangePanel p = (DoubleRangePanel) form;
ingo@42: 
ingo@42:                 if (p.validateForm(item)) {
ingo@42:                     setFromW(p.getFrom());
ingo@42:                     setToW(p.getTo());
ingo@42:                     setStepW(p.getStep());
ingo@42:                 }
ingo@42:             }
ingo@42:         }
ingo@42:         else {
ingo@42:             if (inputMode.equals(FIELD_MODE_SINGLE)) {
ingo@42:                 DoubleArrayPanel p = (DoubleArrayPanel) form;
ingo@42: 
ingo@42:                 if (p.validateForm(item)) {
ingo@42:                     setSingleQ(p.getInputValues(item));
ingo@42:                 }
ingo@42:             }
ingo@42:             else {
ingo@42:                 DoubleRangePanel p = (DoubleRangePanel) form;
ingo@42: 
ingo@42:                 if (p.validateForm(item)) {
ingo@42:                     setFromQ(p.getFrom());
ingo@42:                     setToQ(p.getTo());
ingo@42:                     setStepQ(p.getStep());
ingo@42:                 }
ingo@42:             }
ingo@42:         }
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected double[] getSingleQ() {
ingo@42:         return valuesQ;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected void setSingleQ(double[] values) {
ingo@42:         valuesQ = values;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected double getFromQ() {
ingo@42:         return fromQ;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected void setFromQ(double fromQ) {
ingo@42:         this.fromQ = fromQ;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected double getToQ() {
ingo@42:         return toQ;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected void setToQ(double toQ) {
ingo@42:         this.toQ = toQ;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected double getStepQ() {
ingo@42:         return stepQ;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected void setStepQ(double stepQ) {
ingo@42:         this.stepQ = stepQ;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected double[] getSingleW() {
ingo@42:         return valuesW;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected void setSingleW(double[] values) {
ingo@42:         valuesW = values;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected double getFromW() {
ingo@42:         return fromW;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected void setFromW(double fromW) {
ingo@42:         this.fromW = fromW;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected double getToW() {
ingo@42:         return toW;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected void setToW(double toW) {
ingo@42:         this.toW = toW;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected double getStepW() {
ingo@42:         return stepW;
ingo@42:     }
ingo@42: 
ingo@42: 
ingo@42:     protected void setStepW(double stepW) {
ingo@42:         this.stepW = stepW;
ingo@42:     }
ingo@42: }
ingo@42: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :