Application: gvSIG desktop » Library: org.gvsig.tools

package org.gvsig.tools.swing.impl.bookmarkshistory;

import java.awt.Point;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.function.Predicate;

import javax.swing.JButton;

import javax.swing.JMenu;

import javax.swing.JMenuItem;

import javax.swing.JPopupMenu;

import org.apache.commons.lang3.StringUtils;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.bookmarksandhistory.History;

import org.gvsig.tools.i18n.I18nManager;

import org.gvsig.tools.swing.api.ToolsSwingLocator;

import org.gvsig.tools.swing.api.ToolsSwingUtils;

import static org.gvsig.tools.swing.api.bookmarkshistory.ActionEventWithCurrentValue.ID_SETVALUE;

import org.gvsig.tools.swing.api.bookmarkshistory.HistoryController;

import org.gvsig.tools.swing.api.windowmanager.Dialog;

import org.gvsig.tools.swing.api.windowmanager.WindowManager;

import org.gvsig.tools.swing.api.windowmanager.WindowManager_v2;

import org.gvsig.tools.swing.impl.DefaultActionListenerSupport;

import static org.gvsig.tools.swing.impl.ToolsSwingDefaultImplLibrary.LIBRARY_NAME;

import org.gvsig.tools.util.LabeledValue;

/**

 *

 * @author jjdelcerro

 */

public class DefaultHistoryController<T> extends DefaultActionListenerSupport implements HistoryController<T> {

    public class HistoryEventImpl<T> extends ActionEvent implements HistoryEvent<T> {

        private T currentValue;

        public HistoryEventImpl(Object source, int id, String command) {

            super(source, id, command);

        }

        @Override

        public void setCurrentValue(T value) {

            this.currentValue = value;

        }

        @Override

        public T getCurrentValue() {

            return this.currentValue;

        }

    }

    public static void selfRegister() {

        ToolsSwingUtils.registerIcons(

                DefaultBookmarksController.class, 

                "/org/gvsig/tools/swing/bookmarkandhistory", 

                LIBRARY_NAME, 

                new String[] { "picker", "picker-history", "Historico" }

        );

        ToolsSwingUtils.registerSubgroupIconDescription("picker","Historico","Permite acceder al hist?rico del dialogo o componente en el que se encuentra. Por ejemplo en la ficha de b?squeda permite acceder a las b?squedas anteriores, o junto al bot?n del constructor de expresiones permite acceder al hist?rico de las expresiones introducidas.");

    }

    private final JButton button;

    private final History<T> history;

    private Predicate filter;

    public DefaultHistoryController(History<T> history, JButton button) {

        this.history = history;

        this.button = button;

        if (this.button != null) {

            ToolsSwingUtils.configurePickersButton(

                    this.button, 

                    null, 

                    "picker-history", 

                    (ActionEvent e) -> { doHistory(); }, 

                    null

            );

        }

    }

    private void doHistory() {

        JPopupMenu popup = createMenu().getPopupMenu();

        Point p = this.button.getLocationOnScreen();

        popup.show(this.button, 0, this.button.getHeight());

    }

    public JMenu createMenu() {

        I18nManager i18n = ToolsLocator.getI18nManager();

        JMenu menu = new JMenu(i18n.getTranslation("_History"));

        boolean needSeparator = false;

        if (!history.isEmpty()) {

            for (T value : history.toList()) {

                if (value != null) {

                    JMenuItem item = createHistoryMenuItem(value);

                    if( filter!=null && !filter.test(value) ) {

                        item.setEnabled(false);

                    }

                    menu.add(item);

                    needSeparator = true;

                }

            }

        }

        if( needSeparator ) {

            menu.addSeparator();

            needSeparator = false;

        }

        JMenuItem showAllHistory = new JMenuItem(i18n.getTranslation("_Show_all_history"));

        showAllHistory.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                doShowHistoryDialog();

            }

        });

        menu.add(showAllHistory);

        needSeparator = true;

        return menu;

    }

    private JMenuItem createHistoryMenuItem(final T value) {

        String label;

        if( value instanceof LabeledValue ) {

            label = ((LabeledValue)value).getLabel();

        } else {

            label = value.toString();

        }

        label = StringUtils.abbreviate(label, 45);

        JMenuItem item = new JMenuItem(label);

        item.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                HistoryEventImpl event = new HistoryEventImpl(this, ID_SETVALUE, "set-value");

                if( value!=null ) {

                    event.setCurrentValue(value);

                    fireActionEvent(event);

                }

            }

        });

        return item;

    }

    private void doShowHistoryDialog() {

        WindowManager_v2 winManager = (WindowManager_v2) ToolsSwingLocator.getWindowManager();

        final DefaultHistoryPanel<T> panel = new DefaultHistoryPanel<>(history);

        I18nManager i18n = ToolsLocator.getI18nManager();

        final Dialog dialog = winManager.createDialog(

                panel,

                i18n.getTranslation("History"),

                null,

                WindowManager_v2.BUTTONS_OK_CANCEL

        );

        dialog.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                if (dialog.getAction() != WindowManager_v2.BUTTON_OK) {

                    return;

                }

                T currentValue = panel.getSelectedValue();

                if (currentValue != null) {

                    HistoryEventImpl event = new HistoryEventImpl(this, ID_SETVALUE, "set-value");

                    event.setCurrentValue(currentValue);

                    DefaultHistoryController.this.fireActionEvent(event);

                }

            }

        });

        dialog.show(WindowManager.MODE.DIALOG);

    }

    @Override

    public void setFilter(Predicate filter) {

        this.filter = filter;

    }

    @Override

    public History<T> get() {

        return this.history;

    }

}