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

package org.gvsig.tools.dynform.spi;

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Component;

import java.awt.Dimension;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.HashSet;

import java.util.Iterator;

import java.util.List;

import java.util.Map;

import java.util.Set;

import javax.swing.Action;

import javax.swing.BorderFactory;

import javax.swing.JComponent;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JViewport;

import org.gvsig.tools.dataTypes.CoercionException;

import org.gvsig.tools.dataTypes.DataType;

import org.gvsig.tools.dynform.DynFormDefinition;

import org.gvsig.tools.dynform.DynFormManager;

import org.gvsig.tools.dynform.JDynForm;

import org.gvsig.tools.dynform.JDynFormField;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.service.ServiceException;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public abstract  class AbstractJDynForm implements JDynForm {

    protected static final Logger logger = LoggerFactory.getLogger(AbstractJDynForm.class);

    private int formWidth = 320;

    private int formHeight = 540;

    private DynFormManager manager = null;

    private DynFormDefinition definition = null;

    private int layoutMode = USE_PLAIN;

    private JLabel jlabel_messages = null;

    private boolean readOnly = false;

    private Set listeners = null;

    private boolean useScrollBars = true;

    private Map<String, List<Action>> customActions;

    private JComponent contents = null;

    protected DynObject values = null;

    private boolean border;

    private DynFormSPIManager serviceManager;

    public AbstractJDynForm(DynFormManager manager, DynFormDefinition definition) throws ServiceException {

        this.manager = manager;

        this.definition = definition;

        this.listeners = new HashSet();

        this.customActions = new HashMap();

        if (definition.getTags().has("LayoutMode")) {

            try {

                this.layoutMode = definition.getTags().getInt("LayoutMode");

            } catch (CoercionException e) {

                // Ignorada

            }

        }

    }

    public DynFormSPIManager getServiceManager() {

        if ( serviceManager == null ) {

            serviceManager = DynFormSPILocator.getDynFormSPIManager();

        }

        return serviceManager;

    }

    @Override

    public JComponent asJComponent() {

        if (this.contents == null) {

            this.initComponents();

        }

        return this.contents;

    }

    protected void initComponents() {

        if( this.contents == null ) {

            this.contents = addScrollsAndMessageBar(this.getFieldsContainer());

            if( this.border ) {

                this.contents.setBorder(BorderFactory.createLineBorder(Color.GRAY));

            }            

            message();

        }

    }

    protected boolean isContentsInitialized() {

        return this.contents != null;

    }

    @Override

    public void addListener(JDynFormListener listener) {

        this.listeners.add(listener);

    }

    @Override

    public void removeListener(JDynFormListener listener) {

        this.listeners.remove(listener);

    }

    public JLabel getMessagesJLabel() {

        if (this.jlabel_messages == null) {

            this.jlabel_messages = new JLabel();

            this.jlabel_messages.addMouseListener(new MouseAdapter() {

                @Override

                public void mouseClicked(MouseEvent evt) {

                    int count = evt.getClickCount();

                    if (count == 2) {

                        JOptionPane.showMessageDialog(contents, jlabel_messages.getText(), "Status", JOptionPane.INFORMATION_MESSAGE);

                    }

                }

            });

        }

        return this.jlabel_messages;

    }

    @Override

    public void setShowMessageStatus(boolean showMessageStatus) {

        this.getMessagesJLabel().setVisible(showMessageStatus);

    }

    @Override

    public boolean isShowMessageStatus() {

        return this.getMessagesJLabel().isVisible();

    }

    @Override

    public void message() {

        this.getMessagesJLabel().setText(" ");

    }

    @Override

    public void message(String msg) {

        this.getMessagesJLabel().setText(msg);

        fireMessageEvent(msg);

    }

    protected void fireMessageEvent(String message) {

        Iterator it = this.listeners.iterator();

        while (it.hasNext()) {

            JDynFormListener listener = (JDynFormListener) it.next();

            try {

                listener.message(message);

            } catch (Exception ex) {

                logger.info("Error calling listener " + listener.toString()

                        + "(" + listener.getClass().getName() + ") from "

                        + this.toString() + "(" + this.getClass().getName()

                        + ").", ex);

            }

        }

    }

    protected void fireFieldChangeEvent(JDynFormField field) {

        Iterator it = this.listeners.iterator();

        while (it.hasNext()) {

            JDynFormListener listener = (JDynFormListener) it.next();

            try {

                listener.fieldChanged(field);

            } catch (Exception ex) {

                logger.info("Error calling listener " + listener.toString()

                        + "(" + listener.getClass().getName() + ") from "

                        + this.toString() + "(" + this.getClass().getName()

                        + ").", ex);

            }

        }

    }

    protected JPanel addScrollsAndMessageBar(JComponent formPanel) {

        formPanel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));

        JScrollPane scroll = new JScrollPane(formPanel);

        if (useScrollBars) {

            scroll.setPreferredSize(new Dimension(formWidth, formHeight));

        } else {

            scroll.setPreferredSize(formPanel.getPreferredSize());

        }

        scroll.setBorder(BorderFactory.createEmptyBorder());

        JPanel jpanel = new JPanel();

        jpanel.setLayout(new BorderLayout());

        jpanel.add(scroll, BorderLayout.CENTER);

        jpanel.add(getMessagesJLabel(), BorderLayout.PAGE_END);

        return jpanel;

    }

    @Override

    public int getLayoutMode() {

        return this.layoutMode;

    }

    @Override

    public void setLayoutMode(int layoutMode) {

        if (layoutMode < 0 || layoutMode > USE_SEPARATORS) {

            throw new IllegalArgumentException("layoutMode (" + layoutMode + ") out of range. Valid values are 0 .. " + USE_SEPARATORS + ".");

        }

        this.layoutMode = layoutMode;

    }

    @Override

    public boolean isReadOnly() {

        return readOnly;

    }

    @Override

    public void setReadOnly(boolean readOnly) {

        this.readOnly = readOnly;

    }

    @Override

    public int getFormWidth() {

        if (this.contents == null) {

            return this.formWidth;

        } else {

            JViewport port = ((JScrollPane) this.asJComponent()).getViewport();

            Component comp = (Component) port.getView();

            return comp.getWidth();

        }

    }

    @Override

    public int getFormHeight() {

        if (this.contents == null) {

            return this.formHeight;

        } else {

            JViewport port = ((JScrollPane) this.asJComponent()).getViewport();

            Component comp = (Component) port.getView();

            return comp.getHeight();

        }

    }

    @Override

    public void setFormSize(int width, int height) {

        this.formHeight = height;

        this.formWidth = width;

        if (this.contents != null) {

            this.asJComponent().setPreferredSize(new Dimension(width, height));

        }

    }

    protected List<Action> getCustomFields(DataType dataType) {

        return (List<Action>) customActions.get(dataType.getName());

    }

    @Override

    public void addActionToPopupMenu(DataType tipo, String name, Action action) {

        List<Action> acts = this.getCustomFields(tipo);

        action.putValue(Action.NAME, name);

        if (acts == null) {

            List<Action> aux = new ArrayList<>();

            aux.add(action);

            customActions.put(tipo.getName(), aux);

        } else {

            acts.add(action);

        }

    }

    @Override

    public void addSeparatorToPopupMenu(DataType tipo) {

        List<Action> acts = this.getCustomFields(tipo);

        if (acts == null) {

            List<Action> aux = new ArrayList<>();

            aux.add(null);

            customActions.put(tipo.getName(), aux);

        } else {

            acts.add(null);

        }

    }

    @Override

    public DynFormDefinition getDefinition() {

        return this.definition;

    }

    @Override

    public boolean getUseScrollBars() {

        return useScrollBars;

    }

    @Override

    public void setUseScrollBars(boolean usesScrolls) {

        this.useScrollBars = usesScrolls;

    }

    public void setBorder(boolean border) {

        this.border = border;

        if( this.isContentsInitialized() && border ) {

            this.asJComponent().setBorder(BorderFactory.createLineBorder(Color.GRAY));

        }

    }

    @Override

    public JDynFormField getField(String fieldName) {

        return null;

    }

    protected abstract JComponent getFieldsContainer();

}