BUG 15/BUGCD1998_06.ISO/aplic/jbuilder/jsamples.z/ResourceableLineItemDetailEditor.java

Java Source | 1997-07-24 | 5.7 KB | 198 lines

package borland.samples.intl.application;

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import borland.jbcl.util.*;
import borland.jbcl.view.*;
import borland.jbcl.control.*;
import borland.jbcl.model.*;

/**
 * Custom model-view item editor for editing product detail info (size
 * or color) of rows in orderLineItemDataSet.  When a user begins
 * editing the Size/Color column of orderLineItemDataSet,
 * ResourceableLineItemDetailEditor's startEdit() method is invoked
 * automatically.  ResourceableLineItemDetailEditor then calls
 * AppDataModule.getLookupChoices() to get a list of non-localized
 * possible colors and sizes for the current line item row (sku).
 * ResourceableLineItemDetailEditor looks up the non-localized strings
 * in its resource bundle, then presents the localized choices within
 * one, or if necessary, two ChoiceControls.  When the user selects a
 * value from the ChoiceControl, the getValue() method is called
 * automatically, and ResourceableLineItemDetailEditor returns the
 * corresponding non-localized string input into the column.
 */
public class ResourceableLineItemDetailEditor extends Panel implements ItemEditor {
  AppDataModule appDataModule;
  ResourceBundle resourceBundle;
  ChoiceControl colorChoice = new ChoiceControl();
  ChoiceControl sizeChoice = new ChoiceControl();
  ChoiceControl noChoice = new ChoiceControl();
  String [] colors;
  String [] sizes;

  public ResourceableLineItemDetailEditor(AppDataModule appDataModule) {
    super();
    this.appDataModule = appDataModule;
    setLayout(new FlowLayout());
  }

  public ResourceableLineItemDetailEditor() {
    this(null);
  }

  public void setAppDataModule(AppDataModule appDataModule) {
    this.appDataModule = appDataModule;
  }

  public AppDataModule getAppDataModule() {
    return appDataModule;
  }

  public void setResourceBundle(ResourceBundle resourceBundle) {
    this.resourceBundle = resourceBundle;
  }

  public ResourceBundle getResourceBundle() {
    return resourceBundle;
  }

  public void addKeyListener(KeyListener l) {
    colorChoice.addKeyListener(l);
    sizeChoice.addKeyListener(l);
    noChoice.addKeyListener(l);
  }
  public void removeKeyListener(KeyListener l) {
    colorChoice.removeKeyListener(l);
    sizeChoice.removeKeyListener(l);
    noChoice.addKeyListener(l);
  }

  public Object getValue() {
    Variant variant = new Variant();
    String value = "";
    if (colors.length > 0) {
      value += colors[colorChoice.getSelectedIndex()];
    }
    if (sizes.length > 0) {
      if (value.length() != 0) {
    value += ",";
      }
      value += sizes[sizeChoice.getSelectedIndex()];
    }
    if (value.length() == 0) {
      value = "N/A";
    }
    variant.setString(value);

    return variant;
  }

  public Component getComponent() {
    return this;
  }

  public void startEdit(Object value, Rectangle bounds, ItemEditSite site) {
    boolean noChoices = true;
    Component focusedComponent = null;

    // remove all Choice objects contained by this panel
    removeAll();

    StringTokenizer tokenizer = new StringTokenizer(value.toString(), ",", false);

    if (appDataModule == null) {
      colors = new String[0];
    } else {
      colors = appDataModule.getLookupChoices(appDataModule.getOrderLineItemDataSet(), "sku", appDataModule.getProductColorsDataSet(), "available_colors");
    }
    if (colors.length > 0) {
      String currentColor = colors[0];
      if (tokenizer.hasMoreTokens()) {
    currentColor = tokenizer.nextToken();
      }
      colorChoice.removeAll();
      int currentColorIndex = 0;
      for (int i = 0; i < colors.length; i++) {
    if (colors[i].equals(currentColor)) {
      currentColorIndex = i;
    }
    if (resourceBundle == null) {
      colorChoice.addItem(colors[i]);
    } else {
      colorChoice.addItem(resourceBundle.getString(colors[i]));
    }
      }
      colorChoice.select(currentColorIndex);
      focusedComponent = colorChoice;
      add(colorChoice);
      colorChoice.invalidate();
    }

    if (appDataModule == null) {
      sizes = new String[0];
    } else {
      sizes = appDataModule.getLookupChoices(appDataModule.getOrderLineItemDataSet(), "sku", appDataModule.getProductSizesDataSet(), "available_sizes");
    }
    if (sizes.length > 0) {
      String currentSize = sizes[0];
      if (tokenizer.hasMoreTokens()) {
    currentSize = tokenizer.nextToken();
      }
      sizeChoice.removeAll();
      int currentSizeIndex = 0;
      for (int i = 0; i < sizes.length; i++) {
    if (sizes[i].equals(currentSize)) {
      currentSizeIndex = i;
    }
    if (resourceBundle == null) {
      sizeChoice.add(sizes[i]);
    } else {
      sizeChoice.add(resourceBundle.getString(sizes[i]));
    }
      }
      sizeChoice.select(currentSizeIndex);
      focusedComponent = sizeChoice;
      add(sizeChoice);
      sizeChoice.invalidate();
    }

    if (colors.length == 0 && sizes.length == 0) {
      noChoice.add(resourceBundle.getString("N/A"));
      add(noChoice);
      focusedComponent = noChoice;
    }

    setBounds(bounds.x, bounds.y, bounds.width, bounds.height);

    if (site != null) {
      setBackground(site.getBackground());
      setForeground(site.getForeground());
      setFont(site.getFont());
    }
    validate();

    setVisible(true);

    focusedComponent.requestFocus();
  }

  public void changeBounds(Rectangle bounds) {
    setBounds(bounds.x, bounds.y, bounds.width, bounds.height);
    sizeChoice.invalidate();
    colorChoice.invalidate();
    noChoice.invalidate();
    validate();
  }

  public boolean canPost() {
    return true;
  }

  public void endEdit(boolean posted) {
    setBounds(0,0,0,0);
    setVisible(false);
  }
}