Application: gvSIG desktop » gvSIG scripting

package org.gvsig.scripting.swing.composer;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.Label;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.awt.event.WindowEvent;

import java.awt.event.WindowFocusListener;

import java.util.HashMap;

import java.util.Set;

import javax.help.HelpBroker;

import javax.help.HelpSet;

import javax.swing.DefaultListModel;

import javax.swing.JFrame;

import javax.swing.JList;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JSplitPane;

import javax.swing.JTabbedPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.JViewport;

import javax.swing.ListSelectionModel;

import javax.swing.event.CaretEvent;

import javax.swing.event.CaretListener;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import javax.swing.text.BadLocationException;

import org.gvsig.scripting.ScriptingScript;

import org.gvsig.scripting.ScriptingUIManager;

import org.gvsig.scripting.swing.JDialog;

import org.gvsig.scripting.swing.syntaxhighlight.JEditorPaneSyntaxHighlighting;

public class JCodeEditor extends JEditor implements ActionListener{

        /**

         * 

         */

        private static final long serialVersionUID = 5191252525229037754L;

        protected JTabbedPane pestana;

        JTextField name;

        JTextArea description;

        JEditorPaneSyntaxHighlighting editor;

        //-----------------------

        protected ActionListener defaultActionlistener = null;

        public static class EditorActionEvent extends ActionEvent{

                private int line = 0;

                private int column = 0;

                private int position = 0;                

                public EditorActionEvent(Object source, int id, String command, int line, int column) {

                        super(source,id,command);

                        this.line = line;

                        this.column = column;

                }

                public int[] getLineAndColumn(){

                        int x[] = {this.line,this.column};

                        return x;

                }

        }

        public void addDefaultActionListener(ActionListener actionlistener) {

                this.defaultActionlistener = actionlistener;  

        }

        //-------------

        public JCodeEditor(ScriptingUIManager uimanager, ScriptingScript script){

                super(uimanager, script);

                makeUI();

        }

        protected void makeUI(){

                pestana = new JTabbedPane();

                pestana.setTabPlacement(JTabbedPane.BOTTOM);

                pestana.addTab("Code", getCodePanel());

                pestana.addTab("Properties", getPropertiesPanel());

                this.setLayout( new BorderLayout() );

                this.add(BorderLayout.CENTER, pestana);

        }

        protected JPanel getPropertiesPanel(){

                return new JPropertiesScript(this.getScript());

        }        

        protected void saveScript(){

                //Asignar los cambios para guardarlos

                ScriptingScript script = (ScriptingScript)this.getScript();

                JPropertiesScript properties = null;

                if(this instanceof JDialogEditor){

                        properties = ((JPropertiesScript)pestana.getComponent(2));

                }else if(this instanceof JCodeEditor){

                        properties = ((JPropertiesScript)pestana.getComponent(1));

                }

                if(properties!=null){

                script.setName(properties.name.getText());

                script.setDescription(properties.description.getText());

                script.setCreatedBy(properties.createdBy.getText());

                script.setVersion(properties.version.getText());

                script.setCode(editor.getText());

                script.save();

                }

        }

        public JEditorPaneSyntaxHighlighting getJEditorPane(){

                return this.editor;

        }

        public String cursorLocation(String text, int point){

                int row=0;

                int positionLastRow=0;

                for(int i=0;i<point;i++){

                        String x = ""+text.charAt(i)+"";

                        if(x.equals("\n")){

                                row++;

                                positionLastRow = i;

                        }

                } 

                String result = row+":"+(point-positionLastRow);

                return result;

        }

        protected JPanel getCodePanel(){

                JPanel panel = new JPanel();

                panel.setLayout( new BorderLayout() );

                editor = new JEditorPaneSyntaxHighlighting(this);

                editor.setContentType("text/"+ this.getScript().getLangName());

                editor.setText(this.getScript().getCode());

                editor.addCaretListener(new CaretListener()

                {

                        public void caretUpdate(CaretEvent e)

                        {

                                int lineNumber = 1;

                                int columnNumber = 0;

                                int currentPosition = editor.getCaretPosition();

                                try

                                {

                                        String strText = editor.getDocument().getText(0, currentPosition);

                                        char arrText[] = strText.toCharArray();

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

                                        {

                                                if(arrText[i] == '\n') lineNumber++;

                                        }

                                        columnNumber = currentPosition - strText.lastIndexOf('\n');

                                }

                                catch(BadLocationException ble)

                                {

                                        System.err.println(ble);

                                }

                                launchException(this,1,"position",lineNumber,columnNumber);

                        }

                });

                editor.addKeyListener(new KeyListener(){

                        public void keyPressed(KeyEvent arg0) {

                                // TODO Auto-generated method stub

                                JEditorPaneSyntaxHighlighting jeditorpane = ((JEditorPaneSyntaxHighlighting)arg0.getSource());

                                JCodeEditor editor = jeditorpane.getJCodeEditor();

                                //Obtenemos la selección con jeditorpane.getSelectedText()

                                //Mostramos el PopUp con las opciones que deseemos

                                int keyPressed = arg0.getKeyCode();

                                int modifier = arg0.getModifiers();

                                if(keyPressed==KeyEvent.VK_SPACE && modifier==KeyEvent.CTRL_MASK){

                                        String code = jeditorpane.getText();

                                        code = code.substring(0, jeditorpane.getCaretPosition());

                                        String[] textSelected = code.split("[^0-9a-zA-Z]");

                                        getSuggestions(jeditorpane, textSelected[textSelected.length-1]);

                                }else{

                                        if(keyPressed==KeyEvent.VK_F1){

                                                String code = jeditorpane.getText();

                                                code = code.substring(0, jeditorpane.getCaretPosition());

                                                String[] textSelected = code.split("[^0-9a-zA-Z]");

                                                getHelpPopup(jeditorpane, textSelected[textSelected.length-1]);

                                        }

                                }

                        }

                        public void keyReleased(KeyEvent arg0) {

                                // TODO Auto-generated method stub

                        }

                        public void keyTyped(KeyEvent arg0) {

                                JEditorPaneSyntaxHighlighting jEditor = (JEditorPaneSyntaxHighlighting)arg0.getSource();

                                JViewport jView = (JViewport)jEditor.getParent();

                                JScrollPane jScroll = (JScrollPane)jView.getParent();

                                JPanel panel = (JPanel)jScroll.getParent();

                                JTabbedPane tabsCode = (JTabbedPane)panel.getParent();

                                JCodeEditor jCode = (JCodeEditor)tabsCode.getParent();

                                JTabbedPane tabs = (JTabbedPane)jCode.getParent();

                                int pestana = tabs.getSelectedIndex();

                                String title = tabs.getTitleAt(pestana);

                                if (jCode.getScript().isSaved()){

                                        tabs.setTitleAt(pestana, "*"+title);

                                        jCode.getScript().setSaved(false);

                                }

                        }

                });

                panel.add(BorderLayout.CENTER, new JScrollPane(editor));

                panel.setVisible(true);

                return panel;

        }

        public void getSuggestions(final JEditorPaneSyntaxHighlighting editor,final String text) {

                JTabbedPane tabbed = (JTabbedPane)this.getParent();

                JSplitPane split= (JSplitPane)tabbed.getParent().getParent();

                JScriptingComposer composer = (JScriptingComposer)split.getParent();

                HashMap methods = composer.manager.findMethods(text);

                final JFrame popupWindow = new JFrame("Suggestions Window");

        popupWindow.addWindowFocusListener(new WindowFocusListener() {

            public void windowGainedFocus(WindowEvent e) {

            }

            public void windowLostFocus(WindowEvent e) {

                     popupWindow.setVisible(false);

            }

        });

                ListSelectionListener menuListener = new ListSelectionListener() {

                        public void valueChanged(ListSelectionEvent arg0) {

                                if(arg0.getValueIsAdjusting()){

                                        String[] s = ((JList)arg0.getSource()).getSelectedValue().toString().split(" - ");

                                        String selection = "";

                                        if(s.length==1){

                                                selection = s[0];

                                        }else{

                                                for(int i=0;i<s.length-1;i++){

                                                        selection=selection+s[i];

                                                }

                                        }

                                        editor.select(editor.getCaretPosition()-text.length(), editor.getCaretPosition());

                                        editor.replaceSelection(selection);

                                        popupWindow.setVisible(false);

                                }

                        }

                };

                DefaultListModel listModel = new DefaultListModel();

                for(int x=0;x<methods.size();x++){

                        Set keys = methods.keySet();

                        Object[] l = keys.toArray();

                        HashMap hm = (HashMap) methods.get(l[x]);

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

                                Set keysHm = hm.keySet();

                                Object[] lHm = keysHm.toArray();

                                listModel.addElement(l[x].toString()+" - "+lHm[i]);

                        }

                }

                JList list = new JList(listModel);

                list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

                list.setLayoutOrientation(JList.VERTICAL);

                list.setVisibleRowCount(0);

                list.addListSelectionListener(menuListener);

                JScrollPane scroll = new JScrollPane(list);

                popupWindow.setUndecorated(true);

                popupWindow.setLayout(new BorderLayout());

                if(listModel.getSize()==0){

                        popupWindow.setSize(new Dimension(300, 50));

                        JScrollPane s = new JScrollPane(new Label("No suggestions availables to the text '"+text+"'."));

                        popupWindow.add(s, BorderLayout.CENTER);

                }else{

                        popupWindow.setSize(new Dimension(300, 200));

                        popupWindow.add(scroll, BorderLayout.CENTER);

                }

                popupWindow.setLocation((editor.getLocationOnScreen().x+editor.getCaret().getMagicCaretPosition().x+3), (editor.getLocationOnScreen().y+editor.getCaret().getMagicCaretPosition().y+5));

                popupWindow.setVisible(true);

        }

        public void getHelpPopup(final JEditorPaneSyntaxHighlighting editor,final String text){

                JTabbedPane tabbed = (JTabbedPane)this.getParent();

                JSplitPane split= (JSplitPane)tabbed.getParent().getParent();

                final JScriptingComposer composer = (JScriptingComposer)split.getParent();

                new JDialog(uimanager, "help-browser","Select JavaDoc","Select the JavaDoc that you want to see",new JHelpSelection(this.uimanager,composer,text));

        }

        public void getHelp(final JScriptingComposer composer,String text){

                HelpBroker hb;

                HelpSet hs = composer.manager.getHelpSet();

        hb = hs.createHelpBroker();

        hb.enableHelpKey(composer, text, hs);

        }

        //------------------------

        public void launchException(CaretListener listener, int excId, String command, int lineNumber, int columnNumber){

                this.defaultActionlistener.actionPerformed(

                                new EditorActionEvent(listener, excId, command, lineNumber, columnNumber));

        }

        //-------------------------------

        public void actionPerformed(ActionEvent e) {

                // TODO Auto-generated method stub

        }

}