jpgexportdialog.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 fr.itris.glips.svgeditor.*;

/**
 * the class of the dialog used to choose the parameters of the jpg export action
 * 
 * @author Jordi SUC
 */
public class JPGExportDialog extends ExportDialog{
    
    /**
     * the jpeg quality
     */
    private float jpgQuality=1.0f;
    
    /**
     * whether the Huffman tables are optimized
     */
    private boolean isOptimized=true;
    
    /**
     * whether the compression is progressive
     */
    private boolean isProgressive=false;
    
    /**
     * the constructor of the class
     * @param editor the editor
     * @param parentContainer the parent container
     */
    public JPGExportDialog(SVGEditor editor, JFrame parentContainer) {

        super(editor, parentContainer);
        
        //the labels
        String jpgCompressionSettingsLabel="", jpgQualityLabel="", optimizedLabel="", progressiveLabel="";
        
        if(bundle!=null){
            
            try{
                exportDialogTitle=bundle.getString("labeljpgexport");
                jpgCompressionSettingsLabel=bundle.getString("labeljpegcompressionsettings");
                jpgQualityLabel=bundle.getString("labeljpegquality");
                optimizedLabel=bundle.getString("labeljpegoptimized");
                progressiveLabel=bundle.getString("labeljpegprogressive");
            }catch (Exception ex){}
        }
        
        //setting the title of the dialog
        setTitle(exportDialogTitle);
        
        //creating the size chooser panel
        JPanel sizechooser=getSizeChooserPanel();
        
        //the panel that will contain the slider
        JPanel sliderPanelAndLabel=new JPanel();
        sliderPanelAndLabel.setLayout(new BorderLayout());
        
        //creating the slider
        final JSlider jpgSlider=new JSlider(0, 100, 100);
        jpgSlider.setPreferredSize(new Dimension(100, 20));
        sliderPanelAndLabel.add(jpgSlider, BorderLayout.CENTER);
        
        //creating the label
        final JLabel valueLabel=new JLabel(jpgSlider.getValue()+" %");
        valueLabel.setHorizontalAlignment(SwingConstants.CENTER);
        sliderPanelAndLabel.add(valueLabel, BorderLayout.NORTH);
        
        //the listener to the slider
        final MouseAdapter jpgSliderListener=new MouseAdapter(){
            
            public void mouseReleased(MouseEvent evt) {
                
                jpgQuality=((float)(jpgSlider.getValue())/100);
            }
        };
        
        //adds a listener to the slider
        jpgSlider.addMouseListener(jpgSliderListener);
        
        ChangeListener jpgSliderChangeListener=new ChangeListener(){
            
            public void stateChanged(ChangeEvent evt) {
                
                //setting the label
                valueLabel.setText(jpgSlider.getValue()+" %");
            }
        };
        
        //adds a listener to the slider
        jpgSlider.addChangeListener(jpgSliderChangeListener);
        
        //the label for the widgets
        JLabel jpgLabel=new JLabel(jpgQualityLabel.concat(" :"));
        
        //the "optimized" option checkbox
        final JCheckBox optCheckBox=new JCheckBox(optimizedLabel);
        
        //adding the listener to the checkbox changes
        optCheckBox.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt) {

                isOptimized=optCheckBox.isSelected();
            }
        });
        
        //the "progressive" option checkbox
        final JCheckBox progressiveCheckBox=new JCheckBox(progressiveLabel);
        
        //adding the listener to the checkbox changes
        progressiveCheckBox.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt) {

                isProgressive=progressiveCheckBox.isSelected();
            }
        });
        
        //creating the panel containing the label and the widget panel
        JPanel qualityPanel=new JPanel();
        
        qualityPanel.setLayout(new BorderLayout(5, 0));
        qualityPanel.add(jpgLabel, BorderLayout.WEST);
        qualityPanel.add(sliderPanelAndLabel, BorderLayout.CENTER);

        //creating and filling the compression settings panel
        JPanel compressionSettingsPanel=new JPanel();
        compressionSettingsPanel.setBorder(new TitledBorder(jpgCompressionSettingsLabel));
        
        //creating the layout and filling the panel
        GridBagLayout gridBag=new GridBagLayout();
        compressionSettingsPanel.setLayout(gridBag);
        GridBagConstraints c=new GridBagConstraints();
        
        c.anchor=GridBagConstraints.WEST;
        c.fill=GridBagConstraints.HORIZONTAL;
        c.gridwidth=GridBagConstraints.REMAINDER;
        
        gridBag.setConstraints(qualityPanel, c);
        compressionSettingsPanel.add(qualityPanel);
        gridBag.setConstraints(optCheckBox, c);
        compressionSettingsPanel.add(optCheckBox);
        gridBag.setConstraints(progressiveCheckBox, c);
        compressionSettingsPanel.add(progressiveCheckBox);

        //handling the parameters panel
        parametersPanel.setLayout(new BoxLayout(parametersPanel, BoxLayout.Y_AXIS));
        parametersPanel.add(sizechooser);
        parametersPanel.add(compressionSettingsPanel);
    }
    
    /**
     * @return Returns the jpgQuality.
     */
    public float getJpgQuality() {
        return jpgQuality;
    }

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

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

    
}