Package org.freeplane.features.link

Source Code of org.freeplane.features.link.LinkConditionController

/*
*  Freeplane - mind map editor
*  Copyright (C) 2009 Dimitry Polivaev
*
*  This file author is Dimitry Polivaev
*
*  This program is free software: you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation, either version 2 of the License, or
*  (at your option) any later version.
*
*  This program is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package org.freeplane.features.link;

import javax.swing.ComboBoxEditor;
import javax.swing.ComboBoxModel;
import javax.swing.DefaultComboBoxModel;
import javax.swing.DefaultListModel;
import javax.swing.ListCellRenderer;
import javax.swing.ListModel;
import org.freeplane.core.resources.NamedObject;
import org.freeplane.core.ui.FixedBasicComboBoxEditor;
import org.freeplane.core.util.TextUtils;
import org.freeplane.features.filter.condition.ASelectableCondition;
import org.freeplane.features.filter.condition.ConditionFactory;
import org.freeplane.features.filter.condition.DefaultConditionRenderer;
import org.freeplane.features.filter.condition.IElementaryConditionController;
import org.freeplane.n3.nanoxml.XMLElement;

/**
* @author Dimitry Polivaev
* Mar 7, 2009
*/
public class LinkConditionController implements IElementaryConditionController {
  static final String FILTER_LINK = "filter_link";
  static final String CONNECTOR_LABEL = "connector_label";
  static final String CONNECTOR = "connector";
  private final ComboBoxModel values = new DefaultComboBoxModel();

  public boolean canEditValues(final Object property, final NamedObject simpleCond) {
    return !simpleCond.objectEquals(ConditionFactory.FILTER_EXIST);
  }

  public boolean canHandle(final Object selectedItem) {
    if (!(selectedItem instanceof NamedObject)) {
      return false;
    }
    final NamedObject namedObject = (NamedObject) selectedItem;
    return namedObject.objectEquals(FILTER_LINK) || namedObject.objectEquals(CONNECTOR_LABEL)
            || namedObject.objectEquals(CONNECTOR);
  }

  public boolean canSelectValues(final Object property, final NamedObject simpleCond) {
    return !simpleCond.objectEquals(ConditionFactory.FILTER_EXIST);
  }

  public ASelectableCondition createCondition(final Object selectedItem, final NamedObject simpleCond,
                                              final Object value, final boolean matchCase,
                                              final boolean matchApproximately) {
    final NamedObject namedObject = (NamedObject) selectedItem;
    if (namedObject.objectEquals(FILTER_LINK)) {
      if (simpleCond.objectEquals(ConditionFactory.FILTER_IS_EQUAL_TO)) {
        return new HyperLinkEqualsCondition((String) value, matchCase, matchApproximately);
      }
      if (simpleCond.objectEquals(ConditionFactory.FILTER_CONTAINS)) {
        return new HyperLinkContainsCondition((String) value, matchCase, matchApproximately);
      }
      if (simpleCond.objectEquals(ConditionFactory.FILTER_EXIST)) {
        return new HyperLinkExistsCondition();
      }
      return null;
    }
    if (namedObject.objectEquals(CONNECTOR_LABEL)) {
      if (simpleCond.objectEquals(ConditionFactory.FILTER_IS_EQUAL_TO)) {
        return new ConnectorLabelEqualsCondition((String) value, matchCase, matchApproximately);
      }
      if (simpleCond.objectEquals(ConditionFactory.FILTER_CONTAINS)) {
        return new ConnectorLabelContainsCondition((String) value, matchCase, matchApproximately);
      }
      return null;
    }
    if (namedObject.objectEquals(CONNECTOR)) {
      if (simpleCond.objectEquals(ConditionFactory.FILTER_EXIST)) {
        return new ConnectorExistsCondition();
      }
    }
    return null;
  }

  public ComboBoxModel getConditionsForProperty(final Object property) {
    final NamedObject no = (NamedObject) property;
    final Object[] linkConditionNames;
    if (no.getObject().equals(FILTER_LINK)) {
      linkConditionNames = new NamedObject[] {
              TextUtils.createTranslatedString(ConditionFactory.FILTER_IS_EQUAL_TO),
              TextUtils.createTranslatedString(ConditionFactory.FILTER_CONTAINS),
              TextUtils.createTranslatedString(ConditionFactory.FILTER_EXIST) };
    }
    else if (no.getObject().equals(CONNECTOR_LABEL)) {
      linkConditionNames = new NamedObject[] {
              TextUtils.createTranslatedString(ConditionFactory.FILTER_IS_EQUAL_TO),
              TextUtils.createTranslatedString(ConditionFactory.FILTER_CONTAINS) };
    }
    else {
      linkConditionNames = new NamedObject[] { TextUtils.createTranslatedString(ConditionFactory.FILTER_EXIST) };
    }
    return new DefaultComboBoxModel(linkConditionNames);
  }

  public ListModel getFilteredProperties() {
    final DefaultListModel list = new DefaultListModel();
    list.addElement(TextUtils.createTranslatedString(FILTER_LINK));
    list.addElement(TextUtils.createTranslatedString(CONNECTOR_LABEL));
    list.addElement(TextUtils.createTranslatedString(CONNECTOR));
    return list;
  }

  public ComboBoxEditor getValueEditor(Object selectedProperty, NamedObject selectedCondition) {
    return new FixedBasicComboBoxEditor();
  }

  public ComboBoxModel getValuesForProperty(final Object property, NamedObject simpleCond) {
    return values;
  }

  public boolean isCaseDependent(final Object property, final NamedObject simpleCond) {
    return ((NamedObject) property).objectEquals(CONNECTOR_LABEL) ||
         ((NamedObject) property).objectEquals(FILTER_LINK);
  }
 
  public boolean supportsApproximateMatching(final Object property, final NamedObject simpleCond) {
    return ((NamedObject) property).objectEquals(CONNECTOR_LABEL) ||
         ((NamedObject) property).objectEquals(FILTER_LINK);
  }

  public ASelectableCondition loadCondition(final XMLElement element) {
    if (element.getName().equalsIgnoreCase(HyperLinkEqualsCondition.NAME)) {
      final String target = element.getAttribute(HyperLinkEqualsCondition.TEXT, null);
      final boolean matchCase = Boolean.toString(true).equals(
            element.getAttribute(HyperLinkEqualsCondition.MATCH_CASE, null));
      final boolean matchApproximately = Boolean.toString(true).equals(
          element.getAttribute(HyperLinkEqualsCondition.MATCH_APPROXIMATELY, null));
      return new HyperLinkEqualsCondition(target, matchCase, matchApproximately);
    }
    if (element.getName().equalsIgnoreCase(HyperLinkContainsCondition.NAME)) {
      final String target = element.getAttribute(HyperLinkContainsCondition.TEXT, null);
      final boolean matchCase = Boolean.toString(true).equals(
            element.getAttribute(HyperLinkContainsCondition.MATCH_CASE, null));
      final boolean matchApproximately = Boolean.toString(true).equals(
          element.getAttribute(HyperLinkContainsCondition.MATCH_APPROXIMATELY, null));
      return new HyperLinkContainsCondition(target, matchCase, matchApproximately);
    }
    if (element.getName().equalsIgnoreCase(HyperLinkExistsCondition.NAME)) {
      return new HyperLinkExistsCondition();
    }
    if (element.getName().equalsIgnoreCase(ConnectorLabelEqualsCondition.NAME)) {
      final String text = element.getAttribute(ConnectorLabelEqualsCondition.TEXT, null);
      final boolean matchCase = Boolean.toString(true).equals(
          element.getAttribute(ConnectorLabelEqualsCondition.MATCH_CASE, null));
      final boolean matchApproximately = Boolean.toString(true).equals(
            element.getAttribute(ConnectorLabelEqualsCondition.MATCH_APPROXIMATELY, null));
      return new ConnectorLabelEqualsCondition(text, matchCase, matchApproximately);
    }
    if (element.getName().equalsIgnoreCase(ConnectorLabelContainsCondition.NAME)) {
      final String text = element.getAttribute(ConnectorLabelContainsCondition.TEXT, null);
      final boolean matchCase = Boolean.toString(true).equals(
          element.getAttribute(ConnectorLabelEqualsCondition.MATCH_CASE, null));
      final boolean matchApproximately = Boolean.toString(true).equals(
            element.getAttribute(ConnectorLabelEqualsCondition.MATCH_APPROXIMATELY, null));
      return new ConnectorLabelContainsCondition(text, matchCase, matchApproximately);
    }
    if (element.getName().equalsIgnoreCase(ConnectorExistsCondition.NAME)) {
      return new ConnectorExistsCondition();
    }
    return null;
  }

  public ListCellRenderer getValueRenderer(Object selectedProperty, NamedObject selectedCondition) {
    if (((NamedObject)selectedProperty).objectEquals(CONNECTOR) ||
      (((NamedObject)selectedProperty).objectEquals(FILTER_LINK) &&
          selectedCondition.objectEquals(ConditionFactory.FILTER_EXIST)))
    {
      // don't return null as this would make FilterConditionEditor fall back to filterController.getConditionRenderer()
      // (and that would put in a default string like "No Filtering (remove)"!)
      return new DefaultConditionRenderer("", true);
    }
    else
    {
      return null;
    }
    }
}
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