xmlmultilinetextpanel.java

jawe的最新版本,基于Java的图形化工作流编辑器。图形化工作流编辑器 。使用JAVA语言开发

package org.enhydra.jawe.base.panel.panels;

import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;

import org.enhydra.jawe.ResourceManager;
import org.enhydra.jawe.Settings;
import org.enhydra.jawe.base.panel.PanelContainer;
import org.enhydra.jawe.base.panel.PanelSettings;
import org.enhydra.shark.xpdl.XMLElement;


/**
* Creates panel with JLabel and JTextArea.
* @author Sasa Bojanic
*/
public class XMLMultiLineTextPanel extends XMLBasicPanel {

   public static int SIZE_SMALL=0;
   public static int SIZE_MEDIUM=1;
   public static int SIZE_LARGE=2;
   public static int SIZE_EXTRA_LARGE=3;
   
   public static Dimension textAreaDimensionSmall=new Dimension(200,60);
   public static Dimension textAreaDimensionMedium=new Dimension(300,90);
   public static Dimension textAreaDimensionLarge=new Dimension(400,120);
   public static Dimension textAreaDimensionExtraLarge=new Dimension(400,300);

   protected JTextArea jta;
   protected JLabel jl;
   
   protected boolean falseRequiredForCC=false;
   
   public XMLMultiLineTextPanel (
         PanelContainer pc,
         XMLElement myOwner,
         boolean isVertical,
         int type,
         boolean wrapLines,
         boolean isEnabled) {
      this(pc,myOwner, myOwner.toName(), myOwner.isRequired(), isVertical, type, wrapLines,isEnabled);
   }
   
   public XMLMultiLineTextPanel (
         PanelContainer pc,
         XMLElement myOwner,
         String labelKey,
         boolean isFalseRequired,
         boolean isVertical,
         int type,
         boolean wrapLines,
         boolean isEnabled) {
   


      super(pc,myOwner,"",false,false,true);

      this.falseRequiredForCC=isFalseRequired;
      
      boolean rightAllignment=false;
      
      Color bkgCol=new Color(245,245,245);
      if (pc!=null) {
         Settings settings=pc.getSettings();
      
         rightAllignment = settings.getSettingBoolean("XMLBasicPanel.RightAllignment");
         
         if (settings instanceof PanelSettings) {
            bkgCol=((PanelSettings)settings).getBackgroundColor();
         }

      }      
 

      JScrollPane jsp=new JScrollPane();
      jsp.setAlignmentX(Component.LEFT_ALIGNMENT);
      jsp.setAlignmentY(Component.TOP_ALIGNMENT);

      String lbl="";
      if (pc!=null) {
         lbl = pc.getSettings().getLanguageDependentString(labelKey+"Key")+": ";
      } else {
         lbl=ResourceManager.getLanguageDependentString(labelKey+"Key")+": ";
      }
      jl=new JLabel(lbl);
      jl.setAlignmentX(Component.LEFT_ALIGNMENT);
      jl.setAlignmentY(Component.TOP_ALIGNMENT);
      
      if (rightAllignment) {
         jl.setHorizontalAlignment(SwingConstants.RIGHT);
      } else {
         jl.setHorizontalAlignment(SwingConstants.LEFT);
      }

      jta=new JTextArea();

      jta.setTabSize(4);
      jta.setText(myOwner.toValue());
      jta.getCaret().setDot(0);
      jta.setLineWrap(wrapLines);
      jta.setWrapStyleWord(wrapLines);

      jta.setAlignmentX(Component.LEFT_ALIGNMENT);
      jta.setAlignmentY(Component.TOP_ALIGNMENT);

      jta.setEnabled( isEnabled );
      jta.setBackground(bkgCol);
      
      final XMLPanel p=this;
      jta.addKeyListener(new KeyAdapter() {
         public void keyPressed(KeyEvent e) {
            if (getPanelContainer()==null) return; 
            if (PanelUtilities.isModifyingEvent(e)) {
               getPanelContainer().panelChanged(p, e);
            }
         }          
     });
      
      jsp.setViewportView(jta);
      jsp.setAlignmentX(Component.LEFT_ALIGNMENT);
      jsp.setAlignmentY(Component.TOP_ALIGNMENT);
      Dimension dim=new Dimension(textAreaDimensionMedium);
      if (type==XMLMultiLineTextPanel.SIZE_SMALL) {
         dim=new Dimension(textAreaDimensionSmall);
      } else if (type==XMLMultiLineTextPanel.SIZE_MEDIUM){
         dim=new Dimension(textAreaDimensionMedium);
      } else if (type==XMLMultiLineTextPanel.SIZE_LARGE){
         dim=new Dimension(textAreaDimensionLarge);
      } else {
         dim=new Dimension(textAreaDimensionExtraLarge);
      }
      jsp.setPreferredSize(dim);

      JPanel mainPanel=this;
      if (isVertical) {
         mainPanel=new JPanel();
         mainPanel.setLayout(new BoxLayout(mainPanel,BoxLayout.Y_AXIS));
      }
      if (rightAllignment && !isVertical) {
         mainPanel.add(Box.createHorizontalGlue());
      }
      mainPanel.add(jl);
      if (!rightAllignment && !isVertical) {
         mainPanel.add(Box.createHorizontalGlue());
         
      }
      mainPanel.add(jsp);
      if (!rightAllignment && !isVertical) {
         mainPanel.add(Box.createHorizontalGlue());
      }
      if (isVertical) {
         add(mainPanel);
      }
      
      
      
   }

   public boolean validateEntry () {
      if (isEmpty() && getOwner().isRequired() && falseRequiredForCC && !getOwner().isReadOnly()) {
          //TODO CHECK THIS
         XMLBasicPanel.defaultErrorMessage(this.getWindow(),jl.getText());
         jta.requestFocus();
         return false;
      }
      return true;
   }

   public boolean isEmpty () {
      return getText().trim().equals("");
   }

   public void setElements () {
      if (!getOwner().isReadOnly()) {
         myOwner.setValue(getText().trim());
      }
   }

   public String getText () {
      return jta.getText();
   }

   public Object getValue () {
      return getText();
   }
   
   public void requestFocus () {
      jta.requestFocus();
   }
   
}