package org.jtheque.core.managers.view.impl;

 import org.jtheque.core.managers.Managers;

 import org.jtheque.core.managers.state.AbstractState;

 import org.jtheque.core.managers.state.NodeState;

 import org.jtheque.core.managers.state.NodeStateAttribute;

 import org.jtheque.core.managers.view.able.IView;

 import org.jtheque.core.managers.view.able.IViewManager;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.Map;

 import java.util.Map.Entry;

 /*

  * This file is part of JTheque.

  *

  * JTheque 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 3 of the License.

  *

  * JTheque 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 JTheque.  If not, see <http://www.gnu.org/licenses/>.

  */

 /**

  * A state for persist different views configuration.

  *

  * @author Baptiste Wicht

  */

 public final class WindowsConfiguration extends AbstractState {

     private final Map<String, WindowConfiguration> configurations = new HashMap<String, WindowConfiguration>(10);

     @Override

     public boolean isDelegated() {

         return true;

     }

     @Override

     public void delegateLoad(Collection<NodeState> nodes) {

         for (NodeState node : nodes) {

             if ("window".equals(node.getName())) {

                 WindowConfiguration configuration = new WindowConfiguration();

                 for (NodeState child : node.getChildrens()) {

                     applyValueFromChild(configuration, child);

                 }

                 add(node.getAttributeValue("name"), configuration);

             }

         }

     }

     /**

      * Apply the value from child.

      *

      * @param configuration The window configuration.

      * @param child         The child.

      */

     private static void applyValueFromChild(WindowConfiguration configuration, NodeState child) {

         if ("width".equals(child.getName())) {

             configuration.setWidth(Integer.parseInt(child.getText()));

         } else if ("height".equals(child.getName())) {

             configuration.setHeight(Integer.parseInt(child.getText()));

         } else if ("posX".equals(child.getName())) {

             configuration.setPositionX(Integer.parseInt(child.getText()));

         } else if ("posY".equals(child.getName())) {

             configuration.setPositionY(Integer.parseInt(child.getText()));

         }

     }

     @Override

     public Collection<NodeState> delegateSave() {

         Collection<NodeState> states = new ArrayList<NodeState>(10);

         for (Entry<String, WindowConfiguration> configuration : configurations.entrySet()) {

             NodeState state = new NodeState("window");

             state.getAttributes().add(new NodeStateAttribute("name", configuration.getKey()));

             state.getChildrens().add(new NodeState("width", Integer.toString(configuration.getValue().getWidth())));

             state.getChildrens().add(new NodeState("height", Integer.toString(configuration.getValue().getHeight())));

             state.getChildrens().add(new NodeState("posX", Integer.toString(configuration.getValue().getPositionX())));

             state.getChildrens().add(new NodeState("posY", Integer.toString(configuration.getValue().getPositionY())));

             states.add(state);

         }

         return states;

     }

     /**

      * Add a window configuration for a view.

      *

      * @param name          The name of the view.

      * @param configuration The configuration to add.

      */

     private void add(String name, WindowConfiguration configuration) {

         configurations.put(name, configuration);

     }

     /**

      * Update the configuration with the view.

      *

      * @param name The name of the view.

      * @param view The view.

      */

     public void update(String name, IView view) {

         if (Managers.getCore().getConfiguration().retainSizeAndPositionOfWindow()) {

             WindowConfiguration configuration = get(name);

             if (configuration != null) {

                 Managers.getManager(IViewManager.class).getViewDelegate().fill(configuration, view);

             }

         }

     }

     /**

      * Return the window configuration for a view.

      *

      * @param name The name of the view.

      * @return The window configuration for the view.

      */

     private WindowConfiguration get(String name) {

         return configurations.get(name);

     }

     /**

      * Configure the view.

      *

      * @param name          The name of the view.

      * @param view          The view.

      * @param defaultWidth  The default width of the view.

      * @param defaultHeight The default height of the view.

      */

     public void configure(String name, IView view, int defaultWidth, int defaultHeight) {

         if (Managers.getCore().getConfiguration().retainSizeAndPositionOfWindow()) {

             WindowConfiguration configuration = get(name);

             if (configuration == null) {

                 configuration = new WindowConfiguration();

                 configuration.setWidth(defaultWidth);

                 configuration.setHeight(defaultHeight);

                 configuration.setPositionX(-1);

                 configuration.setPositionY(-1);

                 add(name, configuration);

             }

             Managers.getManager(IViewManager.class).getViewDelegate().configure(configuration, view);

         } else {

             Managers.getManager(IViewManager.class).getViewDelegate().setSize(view, defaultWidth, defaultHeight);

         }

     }

 }