Application: gvSIG desktop

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.hyperlink.app.extension.config.gui;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.ItemEvent;

import java.awt.event.ItemListener;

import java.util.ArrayList;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.border.EtchedBorder;

import javax.swing.border.TitledBorder;

import org.gvsig.andami.PluginServices;

import org.gvsig.andami.ui.mdiManager.IWindow;

import org.gvsig.andami.ui.mdiManager.WindowInfo;

import org.gvsig.app.project.documents.view.legend.gui.AbstractThemeManagerPage;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.hyperlink.app.extension.AbstractActionManager;

import org.gvsig.hyperlink.app.extension.HyperlinkExtension;

import org.gvsig.hyperlink.app.extension.config.LayerLinkConfig;

import org.gvsig.hyperlink.app.extension.config.LinkConfig;

import org.gvsig.hyperlink.app.extension.layers.ILinkLayerManager;

import org.gvsig.hyperlink.app.extension.layers.IncompatibleLayerException;

import org.gvsig.hyperlink.app.extension.layers.ManagerRegistry;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.extensionpoint.ExtensionPoint;

public class ConfigTab extends AbstractThemeManagerPage implements IWindow,

    ActionListener, ItemListener {

    FLayer layer;

    ArrayList rows = new ArrayList();

    JPanel rowList = null;

    GridBagLayout listLayout = null;

    private String[] actionCodes = null;

    private String[] actionNames = null;

    WindowInfo _windowInfo = null;

    JButton jbt_accept = null, jbt_cancel = null;

    JPanel emptyRow;

    JCheckBox jcb_enabled = null;

    JPanel borderPanel = null;

    JButton jbt_addAction = null, jbt_removeAction = null;

    public ConfigTab() {

        super();

        initialize();

    }

    private void initialize() {

        this.setLayout(new GridBagLayout());

        Insets insets = new Insets(8, 8, 8, 8);

        GridBagConstraints constraints = new GridBagConstraints();

        constraints.gridx = 0;

        constraints.gridy = 0;

        constraints.weightx = 1.0;

        constraints.fill = GridBagConstraints.NONE;

        constraints.insets = insets;

        constraints.anchor = GridBagConstraints.NORTHWEST;

        this.add(getEnabledCheckBox(), constraints);

        borderPanel = new JPanel(new GridBagLayout());

        borderPanel.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(EtchedBorder.LOWERED),

            PluginServices.getText(this, "Actions"),

            TitledBorder.DEFAULT_JUSTIFICATION,

            TitledBorder.DEFAULT_POSITION,

            null,

            null));

        insets = new Insets(8, 8, 8, 8);

        constraints = new GridBagConstraints();

        constraints.gridx = 0;

        constraints.gridy = 0;

        constraints.weightx = 1.0;

        constraints.fill = GridBagConstraints.NONE;

        constraints.insets = insets;

        constraints.anchor = GridBagConstraints.NORTHWEST;

        borderPanel.add(getAddRemoveActionsPanel(), constraints);

        listLayout = new GridBagLayout();

        rowList = new JPanel(listLayout);

        constraints.gridx = 0;

        constraints.gridy = 0;

        constraints.weightx = 1.0;

        constraints.weighty = 1.0;

        constraints.fill = GridBagConstraints.NONE;

        constraints.insets = insets;

        constraints.anchor = GridBagConstraints.SOUTH;

        emptyRow = new JPanel();

        rowList.add(emptyRow, constraints);

        JScrollPane scrolledList = new JScrollPane();

        scrolledList.setBorder(null);

        scrolledList.setViewportView(rowList);

        constraints.gridx = 0;

        constraints.gridy = 1;

        constraints.weightx = 1.0;

        constraints.weighty = 1.0;

        constraints.fill = GridBagConstraints.BOTH;

        constraints.insets = insets;

        constraints.anchor = GridBagConstraints.CENTER;

        borderPanel.add(scrolledList, constraints);

        constraints.gridx = 0;

        constraints.gridy = 1;

        constraints.weightx = 1.0;

        constraints.weighty = 1.0;

        constraints.fill = GridBagConstraints.BOTH;

        constraints.insets = insets;

        constraints.anchor = GridBagConstraints.NORTHWEST;

        this.add(borderPanel, constraints);

        // initAcceptCancelButtons(); uncomment this if you want to use this

        // window outside the ThemeManager

    }

    private void initAcceptCancelButtons() {

        JPanel acceptCancelButtons = new JPanel(new GridBagLayout());

        Insets insets = new Insets(14, 4, 8, 8);

        GridBagConstraints constraints = new GridBagConstraints();

        constraints.gridx = 0;

        constraints.gridy = 0;

        constraints.weightx = 1.0;

        constraints.fill = GridBagConstraints.NONE;

        constraints.insets = insets;

        constraints.anchor = GridBagConstraints.EAST;

        acceptCancelButtons.add(getAcceptButton(), constraints);

        constraints.gridx = 1;

        constraints.gridy = 0;

        constraints.weightx = 0.0;

        constraints.fill = GridBagConstraints.NONE;

        constraints.insets = insets;

        constraints.anchor = GridBagConstraints.EAST;

        acceptCancelButtons.add(getCancelButton(), constraints);

        constraints.gridx = 0;

        constraints.gridy = 2;

        constraints.weightx = 0.0;

        constraints.fill = GridBagConstraints.NONE;

        constraints.insets = insets;

        constraints.anchor = GridBagConstraints.SOUTHEAST;

        this.add(acceptCancelButtons, constraints);

    }

    private String[] getActionNames() {

        if (actionNames == null) {

            ExtensionPoint actions =

                ToolsLocator.getExtensionPointManager()

                    .get(HyperlinkExtension.ACTIONSEXTENSIONPOINT);

            String[] actionArray = new String[actions.getCount()];

            String[] codes = getActionCodes();

            for (int i = 0; i < codes.length; i++) {

                try {

                    AbstractActionManager aam =

                        (AbstractActionManager) actions.get(codes[i])

                            .getExtension()

                            .newInstance();

                    actionArray[i] = aam.getName();

                } catch (InstantiationException e) {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                } catch (IllegalAccessException e) {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                }

            }

            actionNames = actionArray;

        }

        return actionNames;

    }

    private String[] getActionCodes() {

        if (actionCodes == null) {

            ExtensionPoint actions =

                ToolsLocator.getExtensionPointManager()

                    .get(HyperlinkExtension.ACTIONSEXTENSIONPOINT);

            String[] actionArray = new String[actions.getCount()];

            actionArray = (String[]) actions.getNames().toArray(actionArray);

            actionCodes = actionArray;

        }

        return actionCodes;

    }

    private String[] getCandidateFields() {

        HyperlinkExtension ext =

            (HyperlinkExtension) PluginServices.getExtension(HyperlinkExtension.class);

        ManagerRegistry registry = ext.getLayerManager();

        try {

            ILinkLayerManager manager;

            manager = registry.get(layer);

            manager.setLayer(layer);

            return manager.getFieldCandidates();

        } catch (InstantiationException e) {

            PluginServices.getLogger()

                .warn("Hyperlink: error getting candidate fields", e);

        } catch (IllegalAccessException e) {

            PluginServices.getLogger()

                .warn("Hyperlink: error getting candidate fields", e);

        } catch (ClassNotFoundException e) {

            PluginServices.getLogger()

                .warn("Hyperlink: error getting candidate fields", e);

        } catch (IncompatibleLayerException e) {

            PluginServices.getLogger()

                .warn("Hyperlink: error getting candidate fields", e);

        } catch (NullPointerException e) {

            PluginServices.getLogger().warn("Hyperlink: error getting manager", e);

        }

        return new String[0];

    }

    public void acceptAction() {

        applyAction();

    }

    public void applyAction() {

        LayerLinkConfig config = new LayerLinkConfig();

        for (int i = 0; i < rows.size(); i++) {

            LinkRow row = (LinkRow) rows.get(i);

            if (row.getSelectedField() != null

                && row.getSelectedAction() != -1) {

                config.addLink(getActionCodes()[row.getSelectedAction()],

                    row.getSelectedField(),

                    row.getExtension());

            }

        }

        config.setEnabled(getEnabledCheckBox().isSelected());

        layer.setProperty(HyperlinkExtension.LAYERPROPERTYNAME, config);

    }

    public void cancelAction() {

    }

    public String getName() {

        return PluginServices.getText(this, "Hyperlink");

    }

    public void setModel(FLayer layer) {

        this.layer = layer;

        synchronized (rows) {

            HyperlinkExtension ext =

                (HyperlinkExtension) PluginServices.getExtension(HyperlinkExtension.class);

            LayerLinkConfig layerConfig = ext.loadLegacyConfig(layer);

            for (int i = rows.size() - 1; i >= 0; i--) { // clean rows

                LinkRow row = (LinkRow) rows.remove(i);

                rowList.remove(row);

            }

            if (layerConfig != null) {

                for (int i = 0; i < layerConfig.linkCount(); i++) {

                    LinkRow row = addRow();

                    LinkConfig config = layerConfig.getLink(i);

                    String selectedAction = config.getActionCode();

                    String[] actions = getActionCodes();

                    for (int j = 0; j < actions.length; j++) {

                        if (actions[j].equals(selectedAction)) {

                            row.setSelectedAction(j);

                        }

                    }

                    row.setSelectedField(config.getFieldName());

                    row.setExtension(config.getExtension());

                }

                if (layerConfig.linkCount() < 1) {

                    addRow(); // just one row by default

                }

                setLinkEnabled(layerConfig.isEnabled());

            } else {

                addRow(); // just one row by default

                setLinkEnabled(false);

            }

        }

    }

    protected JPanel getAddRemoveActionsPanel() {

        JPanel container = new JPanel();

        container.add(getAddActionButton());

        container.add(getRemoveActionButton());

        return container;

    }

    protected LinkRow addRow() {

        LinkRow row = new LinkRow();

        row.setFields(getCandidateFields());

        row.setActions(getActionNames());

        synchronized (rows) {

            rows.add(row);

            GridBagConstraints constraints = new GridBagConstraints();

            constraints.gridx = 0;

            constraints.gridy = rows.size() - 1;

            constraints.weightx = 1.0;

            constraints.weighty = 0.0;

            constraints.fill = GridBagConstraints.HORIZONTAL;

            constraints.insets = new Insets(2, 4, 2, 4);

            constraints.anchor = GridBagConstraints.NORTH;

            rowList.add(row, constraints);

            constraints = new GridBagConstraints();

            constraints.gridx = 0;

            constraints.gridy = rows.size();

            constraints.weightx = 1.0;

            constraints.weighty = 1.0;

            constraints.fill = GridBagConstraints.NONE;

            constraints.anchor = GridBagConstraints.CENTER;

            listLayout.setConstraints(emptyRow, constraints);

        }

        validate();

        return row;

    }

    protected boolean removeBottomRow() {

        LinkRow row;

        synchronized (rows) {

            if (rows.size() <= 1)

                return false;

            row = (LinkRow) rows.get(rows.size() - 1);

            rows.remove(rows.size() - 1);

        }

        rowList.remove(row);

        GridBagConstraints constraints = new GridBagConstraints();

        constraints.gridx = 0;

        constraints.gridy = rows.size();

        constraints.weightx = 1.0;

        constraints.weighty = 1.0;

        constraints.fill = GridBagConstraints.NONE;

        constraints.anchor = GridBagConstraints.CENTER;

        listLayout.setConstraints(emptyRow, constraints);

        validate();

        repaint();

        return true;

    }

    protected JButton getAddActionButton() {

        if (jbt_addAction == null) {

            jbt_addAction =

                new JButton(PluginServices.getText(this, "Add_action"));

            jbt_addAction.setSize(150, 70);

            jbt_addAction.setActionCommand("addButton");

            jbt_addAction.addActionListener(new ActionListener() {

                public void actionPerformed(ActionEvent e) {

                    if (e.getActionCommand().equals("addButton")) {

                        addRow();

                    }

                }

            });

        }

        return jbt_addAction;

    }

    protected JButton getRemoveActionButton() {

        if (jbt_removeAction == null) {

            jbt_removeAction =

                new JButton(PluginServices.getText(this, "Remove_action"));

            jbt_removeAction.setActionCommand("removeButton");

            jbt_removeAction.addActionListener(new ActionListener() {

                public void actionPerformed(ActionEvent e) {

                    if (e.getActionCommand().equals("removeButton")) {

                        removeBottomRow();

                    }

                }

            });

            return jbt_removeAction;

        }

        return jbt_removeAction;

    }

    public WindowInfo getWindowInfo() {

        if (_windowInfo == null) {

            _windowInfo =

                new WindowInfo(WindowInfo.ICONIFIABLE | WindowInfo.MAXIMIZABLE

                    | WindowInfo.RESIZABLE);

            _windowInfo.setWidth(680);

            _windowInfo.setHeight(500);

            _windowInfo.setTitle(PluginServices.getText(this,

                "Hyperlink_Settings"));

        }

        return _windowInfo;

    }

    protected JButton getAcceptButton() {

        if (jbt_accept == null) {

            jbt_accept =

                new org.gvsig.gui.beans.swing.JButton(PluginServices.getText(this,

                    "Aceptar"));

            jbt_accept.addActionListener(this);

        }

        return jbt_accept;

    }

    protected JButton getCancelButton() {

        if (jbt_cancel == null) {

            jbt_cancel =

                new org.gvsig.gui.beans.swing.JButton(PluginServices.getText(this,

                    "Cancel"));

            jbt_cancel.addActionListener(this);

        }

        return jbt_cancel;

    }

    protected JCheckBox getEnabledCheckBox() {

        if (jcb_enabled == null) {

            jcb_enabled =

                new JCheckBox(PluginServices.getText(this, "Enable_hyperlink"),

                    true);

            jcb_enabled.addItemListener(this);

        }

        return jcb_enabled;

    }

    public void actionPerformed(ActionEvent e) {

        if (e.getSource() == getAcceptButton()) {

            acceptAction();

            PluginServices.getMDIManager().closeWindow(this);

        } else

            if (e.getSource() == getCancelButton()) {

                cancelAction();

                PluginServices.getMDIManager().closeWindow(this);

            }

    }

    protected void setListEnabled(boolean enabled) {

        getAddActionButton().setEnabled(enabled);

        getRemoveActionButton().setEnabled(enabled);

        synchronized (rows) {

            for (int i = 0; i < rows.size(); i++) {

                LinkRow row = (LinkRow) rows.get(i);

                row.setEnabled(enabled);

            }

        }

    }

    protected void setLinkEnabled(boolean enabled) {

        getEnabledCheckBox().setSelected(enabled);

        setListEnabled(enabled);

    }

    public void itemStateChanged(ItemEvent e) {

        if (e.getSource() == getEnabledCheckBox()) {

            if (e.getStateChange() == ItemEvent.DESELECTED) {

                setListEnabled(false);

            } else {

                setListEnabled(true);

            }

        }

    }

    public Object getWindowProfile() {

        return WindowInfo.DIALOG_PROFILE;

    }

}