pdfexportdialog.java

完全基于java开发的svg矢量绘图工具

package fr.itris.glips.svgeditor.svgfile.export;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import com.lowagie.text.*;
import java.util.*;
import fr.itris.glips.svgeditor.*;

/**
 * the class of the dialog used to choose the parameters of the pdf export action
 * 
 * @author Jordi SUC
 */
public class PDFExportDialog extends ExportDialog{
    
    /**
     * the size of the pages
     */
    protected com.lowagie.text.Rectangle pageSize=null;
    
    /**
     * whether the orientation is "portrait"
     */
    protected boolean isPortrait=true;
    
    /**
     * the margins
     */
    protected Insets margins=new Insets(0, 0, 0, 0);
    
    /**
     * information on the pdf file
     */
    protected String title="", author="", subject="", keywords="", creator="";
    
    /**
     * the constructor of the class
     * @param editor the editor
     * @param parentContainer the parent container
     */
    public PDFExportDialog(SVGEditor editor, JFrame parentContainer) {

        super(editor, parentContainer);
        
       if(bundle!=null){
            
            try{
                exportDialogTitle=bundle.getString("labelpdfexport");
            }catch (Exception ex){ex.printStackTrace();}
        }
       
       //setting the title of the dialog
       setTitle(exportDialogTitle);
       
       //handling the parameters panel
       parametersPanel.setLayout(new BoxLayout(parametersPanel, BoxLayout.Y_AXIS));
       
       //getting the page parameters panel
       parametersPanel.add(getTabbedPane());
    }
    
    protected JTabbedPane getTabbedPane() {
        
        JTabbedPane tabbedPane=new JTabbedPane();
        
        //getting the labels
        String pageTabLabel="", infoTabLabel="";
 
        if(bundle!=null){
            
            try{
                pageTabLabel=bundle.getString("labelexportpdftabpage");
                infoTabLabel=bundle.getString("labelexportpdftabinfo");
            }catch (Exception ex){}
        }
        
        //adding the tabs
        JPanel pageTab=getPageParametersPanel();
        tabbedPane.addTab(pageTabLabel, pageTab);
        
        JPanel infoTab=getPageInformationPanel();
        tabbedPane.addTab(infoTabLabel, infoTab);
        
        return tabbedPane;
    }

    /**
     * @return Returns the author.
     */
    public String getAuthor() {
        return author;
    }

    /**
     * @return Returns the creator.
     */
    public String getCreator() {
        return creator;
    }

    /**
     * @return Returns the isPortrait.
     */
    public boolean isPortrait() {
        return isPortrait;
    }

    /**
     * @return Returns the keywords.
     */
    public String getKeywords() {
        return keywords;
    }

    /**
     * @return Returns the margins.
     */
    public Insets getMargins() {
        return margins;
    }

    /**
     * @return Returns the pageSize.
     */
    public com.lowagie.text.Rectangle getPageSize() {
        return pageSize;
    }

    /**
     * @return Returns the subject.
     */
    public String getSubject() {
        return subject;
    }

    /**
     * @return Returns the title.
     */
    public String getTitle() {
        return title;
    }

    /**
     * @return the panel containing the widgets used to modify the parameters of the page
     */
    protected JPanel getPageParametersPanel() {
        
        /***********creating the size chooser panel***************/
        
        //getting the labels
        String exportSizeLabel="", predefLabel="", customLabel="", widthLabel="", heightLabel="";
 
        if(bundle!=null){
            
            try{
                predefLabel=bundle.getString("labelexportpredefinedsize");
                customLabel=bundle.getString("labelexportcustomsize");
                exportSizeLabel=bundle.getString("labelexportsize");
                widthLabel=bundle.getString("labelwidth");
                heightLabel=bundle.getString("labelheight");
            }catch (Exception ex){}
        }

        //creating the spinners that will be used to choose the custom size chooser
        final JSpinner widthSpinner=new JSpinner(), heightSpinner=new JSpinner();
        
        SpinnerNumberModel widthSpinnerModel=new SpinnerNumberModel(0, 0, Double.MAX_VALUE, 1);
        SpinnerNumberModel heightSpinnerModel=new SpinnerNumberModel(0, 0, Double.MAX_VALUE, 1);
        
        widthSpinner.setModel(widthSpinnerModel);
        heightSpinner.setModel(heightSpinnerModel);
        
        ((JSpinner.DefaultEditor)widthSpinner.getEditor()).getTextField().setColumns(5);
        ((JSpinner.DefaultEditor)heightSpinner.getEditor()).getTextField().setColumns(5);

        //setting the listeners to the spinners
        widthSpinner.addChangeListener(new ChangeListener(){

            public void stateChanged(ChangeEvent evt) {

                if(pageSize==null) {
                    
                    pageSize=new com.lowagie.text.Rectangle((float)((Double)widthSpinner.getValue()).doubleValue(), 0.0f);
                    
                }else {
                    
                    pageSize=new com.lowagie.text.Rectangle((float)((Double)widthSpinner.getValue()).doubleValue(), pageSize.height());
                }
            }
        });
        
        heightSpinner.addChangeListener(new ChangeListener(){

            public void stateChanged(ChangeEvent evt) {

                if(pageSize==null) {
                    
                    pageSize=new com.lowagie.text.Rectangle(0.0f, (float)((Double)heightSpinner.getValue()).doubleValue());
                    
                }else {
                    
                    pageSize=new com.lowagie.text.Rectangle(pageSize.width(), (float)((Double)heightSpinner.getValue()).doubleValue());
                }
            }
        });
        
        //creating the labels
        JLabel  lbw=new JLabel(widthLabel.concat(" : ")),
                    lbh=new JLabel(heightLabel.concat(" : ")),
                    pxw=new JLabel("px"),
                    pxh=new JLabel("px");
        
        lbw.setHorizontalAlignment(SwingConstants.RIGHT);
        lbh.setHorizontalAlignment(SwingConstants.RIGHT);

        //getting the items for the combo of the predefined sizes
        PredefinedPageSizeItem[] items=PredefinedPageSizeItem.getItems();
        
        //creating the combo box that will display the predefined types
        final JComboBox combo=new JComboBox(items);
        
        //adding a listener to the combo
        combo.addActionListener(new ActionListener() {
            
            public void actionPerformed(ActionEvent evt) {
    
                if(combo.getSelectedItem()!=null) {
                    
                    //setting the new size
                    try {
                        pageSize=((PredefinedPageSizeItem)combo.getSelectedItem()).getSize();
                    }catch (Exception ex) {}
                }
            }
        });

        //creating the radio buttons used to choose between a predefined and a personnalized size chooser
        final JRadioButton    predefinedRadioButton=new JRadioButton(predefLabel),
                                         customRadioButton=new JRadioButton(customLabel);
        
        ButtonGroup buttonGroup=new ButtonGroup();
        buttonGroup.add(predefinedRadioButton);
        buttonGroup.add(customRadioButton);
        
        //adding the listeners to the radio buttons
        ChangeListener radioButtonsListener=new ChangeListener() {
            
            /**
             * the last selected button
             */
            private Object lastSelectedButton=null;
            
            public void stateChanged(ChangeEvent evt) {

                if(lastSelectedButton==null || (lastSelectedButton!=null && ! lastSelectedButton.equals(evt.getSource()))) {
                    
                    if(evt.getSource().equals(predefinedRadioButton) && predefinedRadioButton.isSelected()) {
                        
                        //enabling the combo box and disabling the spinners
                        combo.setEnabled(true);
                        widthSpinner.setEnabled(false);
                        heightSpinner.setEnabled(false);
                        
                        try {
                            //setting the new value for the combo
                            if(combo.getSelectedItem()!=null) {
                                
                                combo.setSelectedItem(combo.getSelectedItem());
        
                            }else {
                                
                                combo.setSelectedItem(PredefinedPageSizeItem.getItem(PageSize.A4));
                            }
                            
                            //setting the new size
                            pageSize=((PredefinedPageSizeItem)combo.getSelectedItem()).getSize();
                                
                        }catch (Exception ex) {}
                        
                    }else if(evt.getSource().equals(customRadioButton) && customRadioButton.isSelected()){

                        //disabling the combo box and enabling the spinners
                        combo.setEnabled(false);
                        widthSpinner.setEnabled(true);
                        heightSpinner.setEnabled(true);
                        
                        //setting the new value for the spinners
                        pageSize=new com.lowagie.text.Rectangle(    (float)((Double)widthSpinner.getValue()).doubleValue(), 
                                                                                                    (float)((Double)heightSpinner.getValue()).doubleValue());
                    }
                    
                    lastSelectedButton=evt.getSource();
                }
            }
        };
        
        //adding the runnable to initialize the size chooser panel
        initializers.add(new Runnable() {
            
            public void run() {
                
                if(pageSize!=null) {
                    
                    //getting the combo item corresponding to the page size
                    PredefinedPageSizeItem item=PredefinedPageSizeItem.getItem(pageSize);
                    
                    if(item!=null) {

                        //enabling the combo box and disabling the spinners
                        predefinedRadioButton.setSelected(true);
                        
                        //setting the new value for the combo
                        combo.setSelectedItem(combo.getSelectedItem());
                        
                        return;
                    }
                }

                //disabling the combo box and enabling the spinners