--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gwt-client/src/main/java/org/dive4elements/river/client/client/ui/RangePanel.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,282 @@
+package org.dive4elements.river.client.client.ui;
+
+import com.google.gwt.core.client.GWT;
+
+import com.smartgwt.client.types.Alignment;
+import com.smartgwt.client.widgets.Canvas;
+import com.smartgwt.client.widgets.Label;
+import com.smartgwt.client.widgets.form.DynamicForm;
+import com.smartgwt.client.widgets.form.fields.FormItem;
+import com.smartgwt.client.widgets.form.fields.TextItem;
+import com.smartgwt.client.widgets.form.validator.Validator;
+import com.smartgwt.client.widgets.layout.HLayout;
+import com.smartgwt.client.widgets.layout.VLayout;
+
+import org.dive4elements.river.client.client.FLYSConstants;
+import org.dive4elements.river.client.shared.model.Data;
+import org.dive4elements.river.client.shared.model.DataItem;
+import org.dive4elements.river.client.shared.model.DataList;
+import org.dive4elements.river.client.shared.model.RangeData;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+/**
+ * An UIProvider for inserting ranges.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public abstract class RangePanel extends AbstractUIProvider {
+
+    private static final long serialVersionUID = -9213089589150335651L;
+
+    public static final String FIELD_LOWER = "field_lower";
+    public static final String FIELD_UPPER = "field_upper";
+
+
+    protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
+
+    protected DynamicForm lowerForm;
+    protected DynamicForm upperForm;
+
+    protected String dataName;
+
+
+    public abstract Object getMaxLower();
+
+    public abstract Object getMaxUpper();
+
+
+
+    @Override
+    public Canvas create(DataList data) {
+        setDataName(data);
+
+        VLayout root = new VLayout();
+
+        root.addMember(createLabel(data));
+        root.addMember(createForm(data));
+        root.addMember(getNextButton());
+
+        initDefaults(data);
+
+        return root;
+    }
+
+
+    @Override
+    public Canvas createOld(DataList dataList) {
+        Data       data  = dataList.get(0);
+        DataItem[] items = data.getItems();
+
+        HLayout layout = new HLayout();
+
+        Label label = new Label(dataList.getLabel());
+        label.setWidth(200);
+        label.setHeight(20);
+
+        Label value = new Label(items[0].getLabel());
+        value.setHeight(20);
+
+        layout.addMember(label);
+        layout.addMember(value);
+        layout.addMember(getBackButton(dataList.getState()));
+
+        return layout;
+    }
+
+
+    @Override
+    public List<String> validate() {
+        List<String> errors = new ArrayList<String>();
+
+        if (!lowerForm.validate()) {
+            String msg = MSG.error_validate_range();
+            msg = msg.replace("$1", getLower());
+            msg = msg.replace("$2", String.valueOf(getMaxLower()));
+            msg = msg.replace("$3", String.valueOf(getMaxLower()));
+            errors.add(msg);
+        }
+
+        if (!upperForm.validate()) {
+            String msg = MSG.error_validate_range();
+            msg = msg.replace("$1", getUpper());
+            msg = msg.replace("$2", String.valueOf(getMaxLower()));
+            msg = msg.replace("$3", String.valueOf(getMaxUpper()));
+            errors.add(msg);
+        }
+
+        return errors;
+    }
+
+
+    @Override
+    protected Data[] getData() {
+        return new Data[0];
+    }
+
+
+    protected void initDefaults(DataList dataList) {
+        RangeData data = findRangeData(dataList);
+
+        if (data != null) {
+            setLower(String.valueOf(data.getDefaultLower()));
+            setUpper(String.valueOf(data.getDefaultUpper()));
+        }
+    }
+
+
+    protected RangeData findRangeData(DataList dataList) {
+        for (int i = 0, n = dataList.size(); i < n; i++) {
+            Data tmp = dataList.get(i);
+
+            if (tmp instanceof RangeData) {
+                return (RangeData) tmp;
+            }
+        }
+        return null;
+    }
+
+
+    protected void setDataName(DataList dataList) {
+        Data data = dataList.get(0);
+
+        this.dataName = data.getLabel();
+    }
+
+
+    public String getDataName() {
+        return dataName;
+    }
+
+
+    public String getLower() {
+        return lowerForm.getValueAsString(FIELD_LOWER);
+    }
+
+
+    public void setLower(String lower) {
+        lowerForm.setValue(FIELD_LOWER, lower);
+    }
+
+
+    public String getUpper() {
+        return upperForm.getValueAsString(FIELD_UPPER);
+    }
+
+
+    public void setUpper(String upper) {
+        upperForm.setValue(FIELD_UPPER, upper);
+    }
+
+
+    protected Canvas createLabel(DataList dataList) {
+        RangeData rangeData = findRangeData(dataList);
+
+        if (rangeData == null) {
+            return new Canvas();
+        }
+
+        Label label = new Label(rangeData.getDescription());
+
+        label.setWidth100();
+        label.setHeight(25);
+
+        return label;
+    }
+
+
+    protected Canvas createForm(DataList dataList) {
+        lowerForm = createLowerForm(dataList);
+        upperForm = createUpperForm(dataList);
+
+        HLayout formLayout = new HLayout();
+        formLayout.addMember(lowerForm);
+        formLayout.addMember(createSpacer());
+        formLayout.addMember(upperForm);
+
+        return formLayout;
+    }
+
+
+    protected DynamicForm newForm() {
+        DynamicForm form = new DynamicForm();
+        form.setTitlePrefix("");
+        form.setTitleSuffix("");
+        form.setTitle("");
+        form.setTitleField("");
+
+        return form;
+    }
+
+
+    protected FormItem newFormItem(String name) {
+        TextItem item = new TextItem(name, "");
+        item.setShowTitle(false);
+
+        return item;
+    }
+
+
+    protected DynamicForm createLowerForm(DataList dataList) {
+        DynamicForm lowerForm = newForm();
+        FormItem    lower     = createLowerField(dataList);
+
+        lowerForm.setFields(lower);
+
+        return lowerForm;
+    }
+
+
+    protected DynamicForm createUpperForm(DataList dataList) {
+        DynamicForm upperForm = newForm();
+        FormItem    upper     = createUpperField(dataList);
+
+        upperForm.setFields(upper);
+
+        return upperForm;
+    }
+
+
+    protected Canvas createSpacer() {
+        Label spacer = new Label("-");
+        spacer.setWidth(25);
+        spacer.setHeight(25);
+        spacer.setAlign(Alignment.CENTER);
+
+        return spacer;
+    }
+
+
+    protected FormItem createLowerField(DataList dataList) {
+        return createField(FIELD_LOWER, createLowerValidators(dataList));
+    }
+
+
+    protected FormItem createUpperField(DataList dataList) {
+        return createField(FIELD_UPPER, createUpperValidators(dataList));
+    }
+
+
+    protected FormItem createField(String name, Validator[] validators) {
+        FormItem field = newFormItem(name);
+
+        if (validators != null && validators.length > 0) {
+            field.setValidators(validators);
+        }
+
+        return field;
+    }
+
+
+    protected Validator[] createLowerValidators(DataList dataList) {
+        return null;
+    }
+
+
+    protected Validator[] createUpperValidators(DataList dataList) {
+        return null;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :