/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2004 Sun
 * Microsystems, Inc. All Rights Reserved.
 */
package org.netbeans.modules.refactoring.ui;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.lang.reflect.Modifier;
import java.text.MessageFormat;
import java.util.Collection;
import javax.swing.JPanel;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.Document;
import org.netbeans.jmi.javamodel.Element;
import org.netbeans.jmi.javamodel.Method;
import org.netbeans.modules.javacore.jmiimpl.javamodel.MethodImpl;
import org.netbeans.modules.refactoring.api.ui.ParametersPanel;
import org.openide.awt.Mnemonics;
import org.openide.util.NbBundle;
import javax.jmi.reflect.RefObject;
import org.netbeans.jmi.javamodel.CallableFeature;
import org.netbeans.jmi.javamodel.ClassDefinition;
import org.netbeans.jmi.javamodel.Constructor;
import org.netbeans.jmi.javamodel.ElementPartKindEnum;
import org.netbeans.jmi.javamodel.Field;
import org.netbeans.jmi.javamodel.JavaClass;
import org.netbeans.jmi.javamodel.JavaPackage;
import org.netbeans.jmi.javamodel.NamedElement;
import org.netbeans.modules.javacore.internalapi.JavaMetamodel;
import org.netbeans.modules.javacore.jmiimpl.javamodel.CallableFeatureImpl;
import org.netbeans.modules.javacore.jmiimpl.javamodel.MetadataElement;


/**
 * @author  Jan Becicka
 */
public class WhereUsedPanel extends JPanel {

    private final transient RefObject element;
    private final transient ParametersPanel parent;
    
    /** Creates new form RenamePanelName */
    public WhereUsedPanel(String name, RefObject e, ParametersPanel parent) {
        setName(NbBundle.getMessage(WhereUsedPanel.class,"LBL_WhereUsed")); // NOI18N
        this.element = e;
        this.parent = parent;
        initComponents();
        remove(classesPanel);
        remove(methodsPanel);
        parent.setPreviewEnabled(false);
        JavaMetamodel.getDefaultRepository().beginTrans(true); 
        try {
            if (e instanceof Method) {
                add(methodsPanel, BorderLayout.CENTER);
                int modifiers = ((Method) e).getModifiers();
                methodsPanel.setVisible(true);
                m_usages.setVisible(!Modifier.isStatic(modifiers));
                m_overriders.setVisible(! (Modifier.isFinal(modifiers) || Modifier.isStatic(modifiers)));
                label.setText(NbBundle.getMessage(WhereUsedPanel.class, "DSC_MethodUsages", getHeader((CallableFeature) e), getSimpleName(((Method) e).getDeclaringClass()))); // NOI18N

                Collection overridens = ((MethodImpl) e).getOverridenMethods();
                if (!overridens.isEmpty()) {
                    m_isBaseClass.setVisible(true);
                    m_isBaseClass.setSelected(true);
                    Mnemonics.setLocalizedText(m_isBaseClass, 
                        new MessageFormat(NbBundle.getMessage(WhereUsedPanel.class, "LBL_UsagesOfBaseClass")).format(
                            new Object[] {
                                getSimpleName(((Method) overridens.iterator().next()).getDeclaringClass())
                            }
                        )
                    );
                } else {
                    m_isBaseClass.setVisible(false);
                    m_isBaseClass.setSelected(false);
                }
            } else {
                if (e instanceof JavaClass) {
                    add(classesPanel, BorderLayout.CENTER);
                    classesPanel.setVisible(true);
                    label.setText(NbBundle.getMessage(WhereUsedPanel.class, "DSC_ClassUsages", ((JavaClass) e).getSimpleName())); // NOI18N
                } else {
                    remove(classesPanel);
                    remove(methodsPanel);
                    c_subclasses.setVisible(false);
                    m_usages.setVisible(false);
                    c_usages.setVisible(false);
                    c_directOnly.setVisible(false);
                    if (e instanceof Constructor) {
                        label.setText(NbBundle.getMessage(WhereUsedPanel.class, "DSC_ConstructorUsages", getHeader((CallableFeature)e), getSimpleName(((Constructor) e).getDeclaringClass()))); // NOI18N
                    } else if (e instanceof Field) {
                        label.setText(NbBundle.getMessage(WhereUsedPanel.class, "DSC_FieldUsages", ((NamedElement) e).getName(), getSimpleName(((Field) e).getDeclaringClass()))); // NOI18N
                    } else if (e instanceof JavaPackage) {
                        label.setText(NbBundle.getMessage(WhereUsedPanel.class, "DSC_PackageUsages", ((NamedElement) e).getName())); // NOI18N
                    } else if (e instanceof NamedElement) {
                        label.setText(NbBundle.getMessage(WhereUsedPanel.class, "DSC_VariableUsages", ((NamedElement) e).getName())); // NOI18N
                    }
                }
            validate();
            }
        } finally {
            JavaMetamodel.getDefaultRepository().endTrans();
        }
    }
    
    private String getSimpleName(ClassDefinition clazz) {
        if (clazz instanceof JavaClass) {
            return ((JavaClass) clazz).getSimpleName();
        } else {
            return NbBundle.getMessage(WhereUsedPanel.class, "LBL_AnonymousClass"); // NOI18N
        }
    }
    
    private String getHeader(CallableFeature call) {
        if (((CallableFeatureImpl) call).getParser() == null) {
            if (call instanceof Method) {
                return ((Method) call).getName();
            } else if (call instanceof Constructor) {
                return getSimpleName(call.getDeclaringClass()); 
            }
            return "";
        }
        int s = ((MetadataElement) call).getPartStartOffset(ElementPartKindEnum.HEADER);
        int e = ((MetadataElement) call).getPartEndOffset(ElementPartKindEnum.HEADER);
        String result =  call.getResource().getSourceText().substring(s,e);
        if (result.length() > 50) {
            result = result.substring(0,49) + "..."; // NOI18N
        }
        return result;
    }
    
    public void requestFocus() {
        super.requestFocus();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        java.awt.GridBagConstraints gridBagConstraints;

        buttonGroup = new javax.swing.ButtonGroup();
        methodsPanel = new javax.swing.JPanel();
        m_isBaseClass = new javax.swing.JCheckBox();
        jPanel1 = new javax.swing.JPanel();
        m_overriders = new javax.swing.JCheckBox();
        m_usages = new javax.swing.JCheckBox();
        classesPanel = new javax.swing.JPanel();
        jPanel2 = new javax.swing.JPanel();
        c_subclasses = new javax.swing.JRadioButton();
        c_usages = new javax.swing.JRadioButton();
        c_directOnly = new javax.swing.JRadioButton();
        label = new javax.swing.JLabel();

        setLayout(new java.awt.BorderLayout());

        methodsPanel.setLayout(new java.awt.GridBagLayout());

        m_isBaseClass.setSelected(true);
        m_isBaseClass.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                m_isBaseClassActionPerformed(evt);
            }
        });

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 3;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 0, 0);
        methodsPanel.add(m_isBaseClass, gridBagConstraints);
        m_isBaseClass.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_isBaseClass"));

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 4;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        methodsPanel.add(jPanel1, gridBagConstraints);

        org.openide.awt.Mnemonics.setLocalizedText(m_overriders, org.openide.util.NbBundle.getMessage(WhereUsedPanel.class, "LBL_FindOverridingMethods"));
        m_overriders.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                m_overridersActionPerformed(evt);
            }
        });

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 0, 0);
        methodsPanel.add(m_overriders, gridBagConstraints);
        m_overriders.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_overriders"));

        org.openide.awt.Mnemonics.setLocalizedText(m_usages, org.openide.util.NbBundle.getMessage(WhereUsedPanel.class, "LBL_FindUsages"));
        m_usages.setSelected(true);
        m_usages.setMargin(new java.awt.Insets(10, 2, 2, 2));
        m_usages.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                m_usagesActionPerformed(evt);
            }
        });

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 0, 0);
        methodsPanel.add(m_usages, gridBagConstraints);
        m_usages.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_usages"));

        add(methodsPanel, java.awt.BorderLayout.CENTER);

        classesPanel.setLayout(new java.awt.GridBagLayout());

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 4;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        classesPanel.add(jPanel2, gridBagConstraints);

        buttonGroup.add(c_subclasses);
        org.openide.awt.Mnemonics.setLocalizedText(c_subclasses, org.openide.util.NbBundle.getMessage(WhereUsedPanel.class, "LBL_FindAllSubtypes"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 0, 0);
        classesPanel.add(c_subclasses, gridBagConstraints);
        c_subclasses.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_subclasses"));

        buttonGroup.add(c_usages);
        c_usages.setSelected(true);
        org.openide.awt.Mnemonics.setLocalizedText(c_usages, org.openide.util.NbBundle.getMessage(WhereUsedPanel.class, "LBL_FindUsages"));
        c_usages.setMargin(new java.awt.Insets(10, 2, 2, 2));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 0, 0);
        classesPanel.add(c_usages, gridBagConstraints);
        c_usages.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_usages"));

        buttonGroup.add(c_directOnly);
        org.openide.awt.Mnemonics.setLocalizedText(c_directOnly, org.openide.util.NbBundle.getMessage(WhereUsedPanel.class, "LBL_FindDirectSubtypesOnly"));
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 3;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        gridBagConstraints.insets = new java.awt.Insets(0, 12, 0, 0);
        classesPanel.add(c_directOnly, gridBagConstraints);
        c_directOnly.getAccessibleContext().setAccessibleDescription(java.util.ResourceBundle.getBundle("org/netbeans/modules/refactoring/ui/Bundle").getString("ACSD_directOnly"));

        add(classesPanel, java.awt.BorderLayout.CENTER);

        add(label, java.awt.BorderLayout.NORTH);

    }//GEN-END:initComponents

    private void m_isBaseClassActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_m_isBaseClassActionPerformed
        parent.stateChanged(null);
    }//GEN-LAST:event_m_isBaseClassActionPerformed

    private void m_overridersActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_m_overridersActionPerformed
        parent.stateChanged(null);
    }//GEN-LAST:event_m_overridersActionPerformed

    private void m_usagesActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_m_usagesActionPerformed
        parent.stateChanged(null);
    }//GEN-LAST:event_m_usagesActionPerformed

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.ButtonGroup buttonGroup;
    private javax.swing.JRadioButton c_directOnly;
    private javax.swing.JRadioButton c_subclasses;
    private javax.swing.JRadioButton c_usages;
    private javax.swing.JPanel classesPanel;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JLabel label;
    private javax.swing.JCheckBox m_isBaseClass;
    private javax.swing.JCheckBox m_overriders;
    private javax.swing.JCheckBox m_usages;
    private javax.swing.JPanel methodsPanel;
    // End of variables declaration//GEN-END:variables

    public boolean isMethodFromBaseClass() {
        return m_isBaseClass.isSelected();
    }
    
    public boolean isMethodOverriders() {
        return m_overriders.isSelected();
    }
    
    public boolean isClassSubTypes() {
        return c_subclasses.isSelected();
    }
    
    public boolean isClassSubTypesDirectOnly() {
        return c_directOnly.isSelected();
    }
    
    public boolean isMethodFindUsages() {
        return m_usages.isSelected();
    }
    
    public boolean isClassFindUsages() {
        return c_usages.isSelected();
    }
    
    public Dimension getPreferredSize() {
        Dimension orig = super.getPreferredSize();
        return new Dimension(orig.width + 30 , orig.height + 30);
    }

}