Application: gvSIG desktop » gvSIG tools: Expression Field

package org.gvsig.expressionfield.project.documents.table.gui;

import java.awt.BorderLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.File;

import java.io.IOException;

import javax.swing.JFileChooser;

import javax.swing.JOptionPane;

import org.apache.bsf.BSFException;

import org.apache.bsf.BSFManager;

import org.apache.commons.io.FileUtils;

import org.apache.commons.lang.StringUtils;

import org.gvsig.app.ApplicationLocator;

import org.gvsig.app.ApplicationManager;

import org.gvsig.expressionfield.ExpressionFieldExtension;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.i18n.I18nManager;

import org.gvsig.utils.GenericFileFilter;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.expressionfield.project.documents.table.gui.syntaxhighlight.JRSyntaxTextArea;

import org.gvsig.expressionfield.project.documents.table.gui.syntaxhighlight.SyntaxtHighlightTextComponent;

public class AdvancedPanel extends AdvancedPanelLayout {

    private static Logger logger = LoggerFactory.getLogger(AdvancedPanel.class);

    private BSFManager interpreter = null;

    private SyntaxtHighlightTextComponent textArea = null;

    public AdvancedPanel(BSFManager interpreter) {

        super();

        this.interpreter = interpreter;

        initComponents();

        translate();

    }

    private void translate() {

        I18nManager i18nManager = ToolsLocator.getI18nManager();

        this.butLoad.setToolTipText(i18nManager.getTranslation("_Load_script_from_file"));

        this.butSave.setToolTipText(i18nManager.getTranslation("_Save_script_to_file"));

        this.butTest.setToolTipText(i18nManager.getTranslation("_Run_script_for_testing"));

    }

    private void initComponents() {

        // this.butLoad.setIcon(...);

        // this.butSave.setIcon(...);

        // this.butTest.setIcon(...);

        this.editorContainer.setLayout(new BorderLayout());

        this.textArea = new JRSyntaxTextArea();

        this.editorContainer.add(textArea.getJTextComponent(), BorderLayout.CENTER);

        this.butLoad.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent ae) {

                doLoad();

            }

        });

        this.butSave.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent ae) {

                doSave();

            }

        });

        this.butTest.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent ae) {

                doTest();

            }

        });

    }

    private void doLoad() {

        final I18nManager i18nManager = ToolsLocator.getI18nManager();

        ApplicationManager application = ApplicationLocator.getManager();

        File files[] = application.showChooserDialog(

                i18nManager.getTranslation("_Seleccione_el_script_a_cargar"),

                JFileChooser.OPEN_DIALOG,

                JFileChooser.FILES_ONLY,

                false,

                null,

                new GenericFileFilter(new String[]{"py", "txt"}, i18nManager.getTranslation("python")),

                false

        );

        if (files != null && files.length >= 1) {

            String code;

            try {

                code = FileUtils.readFileToString(files[0]);

            } catch (IOException ex) {

                logger.warn("Can't read file '" + files[0].getAbsolutePath() + "'.", ex);

                application.messageDialog(

                        i18nManager.getTranslation("_No_se_puede_cargar_el_fichero_seleccionado"),

                        i18nManager.getTranslation("_Atencion"),

                        JOptionPane.WARNING_MESSAGE);

                return;

            }

            this.textArea.setText(code);

        }

    }

    private void doSave() {

        final I18nManager i18nManager = ToolsLocator.getI18nManager();

        ApplicationManager application = ApplicationLocator.getManager();

        String code = this.getCode();

        if (code == null) {

            application.messageDialog(

                    i18nManager.getTranslation("_No_hay_ningun_script_cargado"),

                    i18nManager.getTranslation("_Informacion"),

                    JOptionPane.INFORMATION_MESSAGE);

            return;

        }

        File files[] = application.showChooserDialog(

                i18nManager.getTranslation("_Seleccione_el_script_a_cargar"),

                JFileChooser.SAVE_DIALOG,

                JFileChooser.FILES_ONLY,

                false,

                null,

                new GenericFileFilter(new String[]{"py", "txt"}, i18nManager.getTranslation("python")),

                false

        );

        if (files != null && files.length >= 1) {

            try {

                FileUtils.writeStringToFile(files[0], code);

            } catch (IOException ex) {

                logger.warn("Can't write file '" + files[0].getAbsolutePath() + "'.", ex);

                application.messageDialog(

                        i18nManager.getTranslation("_No_se_puede_guardar_en_el_fichero_seleccionado"),

                        i18nManager.getTranslation("_Atencion"),

                        JOptionPane.WARNING_MESSAGE);

                return;

            }

        }

    }

    private void doTest() {

        final I18nManager i18nManager = ToolsLocator.getI18nManager();

        final ApplicationManager application = ApplicationLocator.getManager();

        String code = this.getCode();

        if (code == null) {

            application.messageDialog(

                    i18nManager.getTranslation("_No_hay_ningun_script_cargado"),

                    i18nManager.getTranslation("_Informacion"),

                    JOptionPane.INFORMATION_MESSAGE);

            return;

        }

        try {

            interpreter.exec(ExpressionFieldExtension.JYTHON, null, -1, -1, code);

        } catch (BSFException ex) {

            logger.warn("Can't execute script:\n" + code + "\n", ex);

            application.messageDialog(

                    i18nManager.getTranslation("_Se_han_producido_errores") + "\n\n" + ex.getMessage(),

                    i18nManager.getTranslation("_Atencion"),

                    JOptionPane.WARNING_MESSAGE);

            return;

        }

        application.messageDialog(

                i18nManager.getTranslation("_Ejecucion_correcta"),

                i18nManager.getTranslation("_Informacion"),

                JOptionPane.INFORMATION_MESSAGE);

    }

    public String getCode() {

        String code = this.textArea.getText();

        code = code.trim();

        if (StringUtils.isBlank(code)) {

            return null;

        }

        return code;

    }

}