--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-client/src/main/java/org/dive4elements/river/client/client/ui/DoubleArrayPanel.java	Thu Apr 25 12:31:32 2013 +0200
@@ -0,0 +1,280 @@
+package de.intevation.flys.client.client.ui;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.i18n.client.NumberFormat;
+
+import com.smartgwt.client.types.TitleOrientation;
+import com.smartgwt.client.widgets.form.DynamicForm;
+import com.smartgwt.client.widgets.form.fields.FormItem;
+import com.smartgwt.client.widgets.form.fields.StaticTextItem;
+import com.smartgwt.client.widgets.form.fields.TextItem;
+import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
+import com.smartgwt.client.widgets.form.fields.events.FocusHandler;
+
+import de.intevation.flys.client.client.FLYSConstants;
+
+import java.util.Map;
+
+public class DoubleArrayPanel
+extends      DynamicForm
+{
+    /** The message class that provides i18n strings. */
+    protected FLYSConstants MESSAGES = GWT.create(FLYSConstants.class);
+
+    protected TextItem ti;
+
+    private String title;
+
+    /** The constant input field name. */
+    public static final String FIELD_NAME = "doublearray";
+
+
+    public DoubleArrayPanel(
+        String title,
+        double[] values,
+        BlurHandler handler)
+    {
+        this(title, values, handler, null, TitleOrientation.RIGHT);
+    }
+
+
+    /**
+     * Creates a new form with a single input field that displays an array of
+     * double values.
+     *
+     * @param name The name of the TextItem.
+     * @param title The title of the TextItem.
+     * @param values The double values that should be displayed initially.
+     * @param blurHandler The BlurHandler that is used to valide the input.
+     * @param focusHandler The FocueHandler that is used to valide the input.
+     */
+    public DoubleArrayPanel(
+        String title,
+        double[] values,
+        BlurHandler blurHandler,
+        FocusHandler focusHandler,
+        TitleOrientation titleOrientation)
+    {
+        this.title = title;
+        ti                 = new TextItem(FIELD_NAME);
+        StaticTextItem sti = new StaticTextItem("staticarray");
+
+        ti.setShowTitle(false);
+        sti.setShowTitle(false);
+        sti.setValue(title);
+
+        ti.addBlurHandler(blurHandler);
+        if (focusHandler != null) {
+            ti.addFocusHandler(focusHandler);
+        }
+
+        if (titleOrientation == TitleOrientation.RIGHT) {
+            setFields(ti, sti);
+        }
+        else {
+            setFields(sti, ti);
+        }
+
+        setTitleOrientation(titleOrientation);
+        setNumCols(2);
+
+        if (values == null) {
+            return;
+        }
+
+        NumberFormat f = NumberFormat.getDecimalFormat();
+
+        StringBuilder text = new StringBuilder();
+        boolean firstItem  = true;
+
+        for (double val: values) {
+            if (!firstItem) {
+                text.append(" ");
+            }
+
+            text.append(f.format(val));
+
+            firstItem = false;
+        }
+
+        ti.setValue(text.toString());
+    }
+
+
+    /**
+     * This method takes the double array to set the values to the textbox.
+     *
+     * @param values The double values.
+     */
+    public void setValues(double[] values) {
+        NumberFormat f = NumberFormat.getDecimalFormat();
+
+        if(values == null || values.length == 0) {
+            ti.clearValue();
+            return;
+        }
+        StringBuilder text = new StringBuilder();
+        boolean firstItem  = true;
+        if (values != null) {
+            for (double val: values) {
+                if (!firstItem) {
+                    text.append(" ");
+                }
+
+                text.append(f.format(val));
+
+                firstItem = false;
+            }
+        }
+
+        ti.clearValue();
+        ti.setValue(text.toString());
+    }
+
+
+    /**
+     * This method appends a double value to the current list of values.
+     *
+     * @param value A new value.
+     */
+    public void addValue(double value) {
+        NumberFormat f = NumberFormat.getDecimalFormat();
+
+        String current = ti.getValueAsString();
+
+        if (current == null || current.length() == 0) {
+            current = f.format(value);
+        }
+        else {
+            current += " " + f.format(value);
+        }
+
+        ti.setValue(current);
+    }
+
+
+    protected boolean validateForm() {
+        return validateForm(ti);
+    }
+
+
+    /**
+     * This method validates the entered text in the location input field. If
+     * there are values that doesn't represent a valid location, an error is
+     * displayed.
+     *
+     * @param item The FormItem.
+     */
+    @SuppressWarnings("unchecked")
+    protected boolean validateForm(FormItem item) {
+        if (item instanceof StaticTextItem) {
+            return true;
+        }
+
+        boolean  valid = true;
+        String   value = (String) item.getValue();
+
+        if (value == null) {
+            return valid;
+        }
+
+        String[] parts = value.split("\\s+");
+
+        if (parts == null) {
+            return valid;
+        }
+
+        NumberFormat nf = NumberFormat.getDecimalFormat();
+        @SuppressWarnings("rawtypes")
+        Map errors = getErrors();
+
+        try {
+            for (String part: parts) {
+
+                if (part.length() == 0) {
+                    continue;
+                }
+
+                nf.parse(part);
+            }
+
+            errors.remove(item.getFieldName());
+        }
+        catch (NumberFormatException nfe) {
+            errors.put(item.getFieldName(), MESSAGES.wrongFormat());
+
+            valid = false;
+        }
+
+        setErrors(errors, true);
+
+        return valid;
+    }
+
+
+    /**
+     * This method returns the double array that has been entered in
+     * <i>item</i>.
+     *
+     * @param item The item that contains the desired values.
+     *
+     * @return the values as double array.
+     */
+    public double[] getInputValues(FormItem item) {
+        String value = (String) item.getValue();
+
+        if (value == null) {
+            return null;
+        }
+
+        String[] parts  = value.split("\\s+");
+
+        if (parts == null) {
+            return null;
+        }
+
+        NumberFormat f = NumberFormat.getDecimalFormat();
+
+        double[] values = new double[parts.length];
+
+        int i = 0;
+        OUTER: for (String part: parts) {
+            if (part.length() == 0) {
+                continue;
+            }
+
+            try {
+                double x = f.parse(part);
+                for (int j = 0; j < i; ++j) {
+                    if (values[j] == x) {
+                        continue OUTER;
+                    }
+                }
+                values[i++] = x;
+            }
+            catch (NumberFormatException nfe) {
+                // do nothing
+            }
+        }
+
+        double [] out = new double[i];
+        System.arraycopy(values, 0, out, 0, i);
+
+        return out;
+    }
+
+
+    /**
+     * Returns the double values of this panel.
+     *
+     * @return the double values of this panel.
+     */
+    public double[] getInputValues() {
+        return getInputValues(ti);
+    }
+
+    public String getItemTitle() {
+        return this.title;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :