HeaderField.java

/*******************************************************************************
 * Copyright 2011 Alex 'Ript' Malyshev <alexript@gmail.com>
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package net.autosauler.ballance.client.gui;

import java.util.Date;

import net.autosauler.ballance.client.model.CatalogModel;
import net.autosauler.ballance.client.model.DocumentModel;
import net.autosauler.ballance.shared.datatypes.DataTypes;

import com.extjs.gxt.ui.client.event.Events;
import com.extjs.gxt.ui.client.event.FieldEvent;
import com.extjs.gxt.ui.client.event.Listener;
import com.extjs.gxt.ui.client.widget.form.CheckBox;
import com.extjs.gxt.ui.client.widget.form.DateField;
import com.extjs.gxt.ui.client.widget.form.Field;
import com.extjs.gxt.ui.client.widget.form.PropertyEditor;
import com.extjs.gxt.ui.client.widget.form.SimpleComboValue;
import com.extjs.gxt.ui.client.widget.form.TextArea;
import com.extjs.gxt.ui.client.widget.form.TextField;
import com.extjs.gxt.ui.client.widget.grid.CellEditor;
import com.google.gwt.i18n.client.DateTimeFormat;

/**
 * The Class HeaderField.
 * 
 * @author alexript
 */
public class HeaderField implements Listener<FieldEvent> {

	/** The w. */
	private Field<?> w;

	/** The t. */
	private final int t;

	/** The defval. */
	private final Object defval;

	/** The mytag. */
	private String mytag;

	/** The h. */
	private IFieldChangeHandler h;
	private ITableFieldChangeHandler ch;

	/**
	 * Instantiates a new header field.
	 * 
	 * @param name
	 *            the name
	 * @param widget
	 *            the widget
	 * @param type
	 *            the type
	 * @param defval
	 *            the defval
	 */
	public HeaderField(String name, int type, Object defval, Object helper) {
		super();
		h = null;
		this.defval = defval;
		t = type;
		createField(name, helper);

	}

	@SuppressWarnings("unchecked")
	private void createField(String name, Object helper) {

		if (t == DataTypes.DT_SCRIPT) {
			w = new TextArea();

		} else if (t == DataTypes.DT_STRING) {
			w = new TextField<String>();

		} else if (t == DataTypes.DT_CURRENCY) {
			w = new CurrencySelector((String) defval);
		} else if (t == DataTypes.DT_CATALOGRECORD) {
			w = ((CatalogPanel) helper).getSelectBox((Long) defval);
		} else if (t == DataTypes.DT_DOCUMENTRECORD) {
			w = ((DocumentPanel) helper).getSelectBox((Long) defval);
		} else if (t == DataTypes.DT_DATE) {
			w = new DateField();
			((DateField) w).setFormatValue(true);
			((DateField) w).getPropertyEditor().setFormat(
					DateTimeFormat.getFormat("yyyy/MM/dd"));

		} else if (t == DataTypes.DT_MONEY) {
			w = new TextField<Double>();
			((TextField<Double>) w)
					.setPropertyEditor(new PropertyEditor<Double>() {

						@Override
						public Double convertStringValue(String value) {
							String v = value.trim().replace(',', '.');
							return Double.parseDouble(v);
						}

						@Override
						public String getStringValue(Double value) {
							return value.toString();
						}
					});

		} else if (t == DataTypes.DT_DOUBLE) {
			w = new TextField<Double>();
			((TextField<Double>) w)
					.setPropertyEditor(new PropertyEditor<Double>() {

						@Override
						public Double convertStringValue(String value) {
							String v = value.trim().replace(',', '.');
							return Double.parseDouble(v);
						}

						@Override
						public String getStringValue(Double value) {
							return value.toString();
						}
					});

		} else if (t == DataTypes.DT_INT) {
			w = new TextField<Integer>();
			((TextField<Integer>) w)
					.setPropertyEditor(new PropertyEditor<Integer>() {

						@Override
						public Integer convertStringValue(String value) {
							String v = value.trim();
							return Integer.parseInt(v);
						}

						@Override
						public String getStringValue(Integer value) {
							return value.toString();
						}
					});

		} else if (t == DataTypes.DT_LONG) {
			w = new TextField<Long>();
			((TextField<Long>) w).setPropertyEditor(new PropertyEditor<Long>() {

				@Override
				public Long convertStringValue(String value) {
					String v = value.trim().replace(',', '.');
					return Long.parseLong(v);
				}

				@Override
				public String getStringValue(Long value) {
					return value.toString();
				}
			});

		} else if (t == DataTypes.DT_BOOLEAN) {
			w = new CheckBox();
		}

		if (w == null) {
			w = new TextField<String>();
			// TODO: create widgets for all datatypes
		}

		w.setFieldLabel(name);
		w.setAutoValidate(false);

	}

	public CellEditor getCellEditor() {
		if (t == DataTypes.DT_CURRENCY) {
			CellEditor e = new CellEditor(w) {
				@SuppressWarnings("unchecked")
				@Override
				public Object postProcessValue(Object value) {
					if (value == null) {
						return value;
					}
					return ((SimpleComboValue<String>) value).get("value");
				}

				@Override
				public Object preProcessValue(Object value) {
					if (value == null) {
						return value;
					}
					return ((CurrencySelector) w).findModel(value.toString());
				}
			};
			return e;
		} else if (t == DataTypes.DT_CATALOGRECORD) {
			CellEditor e = new CellEditor(w) {

				@Override
				public Object postProcessValue(Object value) {
					if (value == null) {
						return value;
					}
					return ((CatalogModel) value).get("number");
				}

				@Override
				public Object preProcessValue(Object value) {
					if (value == null) {
						return value;
					}
					return ((CatalogSelector) w).find((Long) value);
				}
			};
			return e;
		} else if (t == DataTypes.DT_DOCUMENTRECORD) {
			CellEditor e = new CellEditor(w) {

				@Override
				public Object postProcessValue(Object value) {
					if (value == null) {
						return value;
					}
					DocumentModel model = (DocumentModel) value;
					Long number = model.get("number");

					return number;
				}

				@Override
				public Object preProcessValue(Object value) {
					if (value == null) {
						return value;
					}
					return ((DocumentSelector) w).find((Long) value);
				}
			};
			return e;
		}
		return new CellEditor(w);
	}

	public Field<?> getField() {
		return w;
	}

	/**
	 * Gets the value.
	 * 
	 * @return the value
	 */
	@SuppressWarnings("unchecked")
	public Object getValue() {
		Object o = null;
		if (t == DataTypes.DT_SCRIPT) {
			o = ((TextArea) w).getValue();
		} else if (t == DataTypes.DT_STRING) {
			o = ((TextField<String>) w).getValue();
		} else if (t == DataTypes.DT_MONEY) {
			o = ((TextField<Double>) w).getValue();

		} else if (t == DataTypes.DT_DOUBLE) {
			o = ((TextField<Double>) w).getValue();

		} else if (t == DataTypes.DT_CURRENCY) {
			o = ((CurrencySelector) w).getStrValue();
		} else if (t == DataTypes.DT_CATALOGRECORD) {
			o = ((CatalogSelector) w).getLongValue();
		} else if (t == DataTypes.DT_DOCUMENTRECORD) {
			o = ((DocumentSelector) w).getLongValue();
		} else if (t == DataTypes.DT_DATE) {
			o = ((DateField) w).getValue();
		} else if (t == DataTypes.DT_INT) {
			o = ((TextField<Integer>) w).getValue();

		} else if (t == DataTypes.DT_LONG) {
			o = ((TextField<Long>) w).getValue();

		} else if (t == DataTypes.DT_BOOLEAN) {
			o = ((CheckBox) w).getValue();
		}
		return DataTypes.toMapping(t, o);
	}

	/**
	 * Gets the value.
	 * 
	 * @return the value
	 */
	@SuppressWarnings("unchecked")
	public String getValueAsString() {
		Object o = null;
		if (t == DataTypes.DT_SCRIPT) {
			o = ((TextArea) w).getValue();
		} else if (t == DataTypes.DT_STRING) {
			o = ((TextField<String>) w).getValue();
		} else if (t == DataTypes.DT_MONEY) {
			o = ((TextField<Double>) w).getValue();
		} else if (t == DataTypes.DT_DOUBLE) {
			o = ((TextField<Double>) w).getValue();

		} else if (t == DataTypes.DT_CURRENCY) {
			o = ((CurrencySelector) w).getStrValue();
		} else if (t == DataTypes.DT_CATALOGRECORD) {
			o = ((CatalogSelector) w).getLongValue();
		} else if (t == DataTypes.DT_DOCUMENTRECORD) {
			o = ((DocumentSelector) w).getLongValue();
		} else if (t == DataTypes.DT_DATE) {
			o = ((DateField) w).getValue();
		} else if (t == DataTypes.DT_INT) {
			o = ((TextField<Integer>) w).getValue();

		} else if (t == DataTypes.DT_LONG) {
			o = ((TextField<Long>) w).getValue();

		} else if (t == DataTypes.DT_BOOLEAN) {
			o = ((CheckBox) w).getValue();
		}
		return DataTypes.toString(t, o);
	}

	@SuppressWarnings("rawtypes")
	@Override
	public void handleEvent(FieldEvent be) {

		if (h != null) {
			h.handleFieldChange(mytag, getValueAsString());
		}
		if (ch != null) {

			if (t == DataTypes.DT_CATALOGRECORD) {
				ch.handleFieldChange(mytag,
						((CatalogModel) be.getValue()).get("number"));
			} else if (t == DataTypes.DT_DOCUMENTRECORD) {
				ch.handleFieldChange(mytag,
						((DocumentModel) be.getValue()).get("number"));
			} else if (t == DataTypes.DT_CURRENCY) {
				ch.handleFieldChange(mytag,
						((SimpleComboValue) be.getValue()).get("value"));
			} else {

				ch.handleFieldChange(mytag, be.getValue());
			}
		}

	}

	/**
	 * Reset.
	 */
	public void reset() {
		setValue(defval, false);
	}

	@SuppressWarnings({ "unchecked" })
	public void setCellChangeHandler(String tag,
			ITableFieldChangeHandler handler) {
		mytag = tag;
		ch = handler;

		if (t == DataTypes.DT_STRING) {
			((TextField<String>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_MONEY) {
			((TextField<Double>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_DOUBLE) {
			((TextField<Double>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_CURRENCY) {
			((CurrencySelector) w).addChangeHandler(this);
		} else if (t == DataTypes.DT_CATALOGRECORD) {
			((CatalogSelector) w).addChangeHandler(this);
		} else if (t == DataTypes.DT_DOCUMENTRECORD) {
			((DocumentSelector) w).addChangeHandler(this);
		} else if (t == DataTypes.DT_DATE) {
			((DateField) w).addListener(Events.Change, this);
		} else if (t == DataTypes.DT_INT) {
			((TextField<Integer>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_LONG) {
			((TextField<Long>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_BOOLEAN) {
			((CheckBox) w).addListener(Events.Change, this);
		}
	}

	/**
	 * Sets the change handler.
	 * 
	 * @param tag
	 *            the tag
	 * @param handler
	 *            the handler
	 */
	@SuppressWarnings({ "unchecked" })
	public void setChangeHandler(String tag, IFieldChangeHandler handler) {
		mytag = tag;
		h = handler;

		if (t == DataTypes.DT_STRING) {
			((TextField<String>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_MONEY) {
			((TextField<Double>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_DOUBLE) {
			((TextField<Double>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_CURRENCY) {
			((CurrencySelector) w).addChangeHandler(this);
		} else if (t == DataTypes.DT_CATALOGRECORD) {
			((CatalogSelector) w).addChangeHandler(this);
		} else if (t == DataTypes.DT_DOCUMENTRECORD) {
			((DocumentSelector) w).addChangeHandler(this);
		} else if (t == DataTypes.DT_DATE) {
			((DateField) w).addListener(Events.Change, this);
		} else if (t == DataTypes.DT_INT) {
			((TextField<Integer>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_LONG) {
			((TextField<Long>) w).addListener(Events.Change, this);

		} else if (t == DataTypes.DT_BOOLEAN) {
			((CheckBox) w).addListener(Events.Change, this);
		}
	}

	/**
	 * Sets the value.
	 * 
	 * @param val
	 *            the new value
	 * @param castfrommap
	 *            the castfrommap
	 */
	@SuppressWarnings("unchecked")
	public void setValue(Object val, boolean castfrommap) {
		Object mval = val;
		if (castfrommap) {
			mval = DataTypes.fromMapping(t, val);
		}
		if (t == DataTypes.DT_SCRIPT) {
			((TextArea) w).setValue((String) mval);
		} else if (t == DataTypes.DT_STRING) {
			((TextField<String>) w).setValue((String) mval);
		} else if (t == DataTypes.DT_MONEY) {
			if (mval == null) {
				mval = 0.0d;
			}
			((TextField<Double>) w).setValue((Double) mval);
		} else if (t == DataTypes.DT_DOUBLE) {
			((TextField<Double>) w).setValue((Double) mval);
		} else if (t == DataTypes.DT_CURRENCY) {
			((CurrencySelector) w).select((String) mval);
		} else if (t == DataTypes.DT_CATALOGRECORD) {
			Long v = null;
			try {
				v = (Long) mval;
				((CatalogSelector) w).select(v);
			} catch (java.lang.ClassCastException e) {
				((CatalogSelector) w).reset();
			}
		} else if (t == DataTypes.DT_DOCUMENTRECORD) {
			Long v = null;
			try {
				v = (Long) mval;
				((DocumentSelector) w).select(v);
			} catch (java.lang.ClassCastException e) {
				((DocumentSelector) w).reset();
			}

		} else if (t == DataTypes.DT_DATE) {
			((DateField) w).setValue((Date) mval);
		} else if (t == DataTypes.DT_INT) {
			((TextField<Integer>) w).setValue((Integer) mval);
		} else if (t == DataTypes.DT_LONG) {
			((TextField<Long>) w).setValue((Long) mval);
		} else if (t == DataTypes.DT_BOOLEAN) {
			((CheckBox) w).setValue((Boolean) mval);
		}
	}

	/**
	 * Sets the value.
	 * 
	 * @param val
	 *            the new value
	 * @param castfrommap
	 *            the castfrommap
	 */
	@SuppressWarnings("unchecked")
	public void setValue(String val, boolean castfrommap) {
		Object mval = val;
		if (castfrommap) {
			mval = DataTypes.fromString(t, val);
		}
		if (t == DataTypes.DT_SCRIPT) {
			((TextArea) w).setValue((String) mval);
		} else if (t == DataTypes.DT_STRING) {
			((TextField<String>) w).setValue((String) mval);
		} else if (t == DataTypes.DT_MONEY) {
			((TextField<Double>) w).setValue((Double) mval);
		} else if (t == DataTypes.DT_DOUBLE) {
			((TextField<Double>) w).setValue((Double) mval);
		} else if (t == DataTypes.DT_CURRENCY) {
			((CurrencySelector) w).select((String) mval);
		} else if (t == DataTypes.DT_CATALOGRECORD) {
			((CatalogSelector) w).select((Long) mval);
		} else if (t == DataTypes.DT_DOCUMENTRECORD) {
			((DocumentSelector) w).select((Long) mval);
		} else if (t == DataTypes.DT_DATE) {
			((DateField) w).setValue((Date) mval);
		} else if (t == DataTypes.DT_INT) {
			((TextField<Integer>) w).setValue((Integer) mval);
		} else if (t == DataTypes.DT_LONG) {
			((TextField<Long>) w).setValue((Long) mval);
		} else if (t == DataTypes.DT_BOOLEAN) {
			((CheckBox) w).setValue((Boolean) mval);
		}
	}

}