Package org.gudy.azureus2.ui.swt

Source Code of org.gudy.azureus2.ui.swt.Messages

/*
* Created on 21.07.2003
* Copyright (C) 2003, 2004, 2005, 2006 Aelitis, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*
* AELITIS, SAS au capital de 46,603.30 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package org.gudy.azureus2.ui.swt;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.widgets.*;
import org.gudy.azureus2.core3.internat.MessageText;
import org.gudy.azureus2.core3.util.Constants;
import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.ui.swt.views.table.TableColumnOrTreeColumn;

import java.util.regex.Pattern;


/**
* @author Arbeiten
*/
public class Messages {

  private static final Pattern HIG_ELLIP_EXP = Pattern.compile("([\\.]{3})"); // rec. hig style on some platforms

  /**
   *
   */
  private Messages() {

    // TODO Auto-generated constructor stub
  }
  public static void updateLanguageForControl(Widget widget) {
    if (widget == null || widget.isDisposed())
      return;

    updateLanguageFromData(widget,null)// OK, so we loose parameters on language change...
    updateToolTipFromData(widget);

    if (widget instanceof CTabFolder) {
      CTabFolder folder = (CTabFolder) widget;
      CTabItem[] items = folder.getItems();
      for (int i = 0; i < items.length; i++) {
        updateLanguageForControl(items[i]);
        updateLanguageForControl(items[i].getControl());
      }
    } else if (widget instanceof TabFolder) {
      TabFolder folder = (TabFolder) widget;
      TabItem[] items = folder.getItems();
      for (int i = 0; i < items.length; i++) {
        updateLanguageForControl(items[i]);
        updateLanguageForControl(items[i].getControl());
      }
    }
    else if(widget instanceof CoolBar) {
      CoolItem[] items = ((CoolBar)widget).getItems();
      for(int i = 0 ; i < items.length ; i++) {
        Control control = items[i].getControl();
        updateLanguageForControl(control);
      }
    }
    else if(widget instanceof ToolBar) {
      ToolItem[] items = ((ToolBar)widget).getItems();
      for(int i = 0 ; i < items.length ; i++) {
        updateLanguageForControl(items[i]);
      }
    }
    else if (widget instanceof Composite) {
      Composite group = (Composite) widget;
      Control[] controls = group.getChildren();
      for (int i = 0; i < controls.length; i++) {
        updateLanguageForControl(controls[i]);
      }
      if (widget instanceof Table) {
        Table table = (Table) widget;
        TableColumn[] columns = table.getColumns();
        for (int i = 0; i < columns.length; i++) {
          updateLanguageFromData(columns[i], null);
        }
        updateLanguageForControl(table.getMenu());
       
        // XXX We could (should?) send this event for all widget types
        // XXX Would it better to have a custom event type?
        Event event = new Event();
        event.type = SWT.Settings;
        event.widget = widget;
        widget.notifyListeners(SWT.Settings, event);
      }
      else if (widget instanceof Tree) {
        Tree tree = (Tree) widget;
        TreeItem[] treeitems = tree.getItems();
        for (int i = 0; i < treeitems.length; i++) {
          updateLanguageForControl(treeitems[i]);
        }
      }
      else if (widget instanceof TreeItem) {
        TreeItem treeItem = (TreeItem) widget;
        TreeItem[] treeitems = treeItem.getItems();
        for (int i = 0; i < treeitems.length; i++) {
          updateLanguageForControl(treeitems[i]);
        }
      }
       
      group.layout();
    }
    else if (widget instanceof MenuItem) {
      MenuItem menuItem = (MenuItem) widget;
      updateLanguageForControl(menuItem.getMenu());
    }
    else if (widget instanceof Menu) {
      Menu menu = (Menu) widget;
      if (menu.getStyle() == SWT.POP_UP)
        System.out.println("POP_UP");

      MenuItem[] items = menu.getItems();
      for (int i = 0; i < items.length; i++) {
        updateLanguageForControl(items[i]);
      }
    }
    else if (widget instanceof TreeItem) {
      TreeItem treeitem = (TreeItem) widget;
      TreeItem[] treeitems = treeitem.getItems();
      for (int i = 0; i < treeitems.length; i++) {
        updateLanguageFromData(treeitems[i], null);
      }
    }
   
  }

  public static void setLanguageText(Widget widget, String key) {
    setLanguageText(widget, key, false);
  }
 
  public static void setLanguageText(Widget widget, String key, String[]params) {
    setLanguageText(widget, key, params, false);
  }

  public static void setLanguageText(Widget widget, String key, boolean setTooltipOnly) {
    setLanguageText( widget, key, null, setTooltipOnly );
  }
 
  private static void
  setLanguageText(Widget widget, String key, String[] params, boolean setTooltipOnly) {
    widget.setData(key);
    if(!setTooltipOnly)
      updateLanguageFromData(widget, params);
    updateToolTipFromData(widget);
  }
 
  private static void updateToolTipFromData(Widget widget) {
    if(widget instanceof Control) {
      String key = (String) widget.getData();
      if(key != null) {
        if(!key.endsWith(".tooltip"))
          key += ".tooltip";
        String toolTip = MessageText.getString(key);
        if(!toolTip.equals('!' + key + '!')) {
          ((Control)widget).setToolTipText(toolTip);
        }
      }
    } else if(widget instanceof ToolItem) {
      String key = (String) widget.getData();
      if(key != null) {
        if(!key.endsWith(".tooltip"))
          key += ".tooltip";
        String toolTip = MessageText.getString(key);
        if(!toolTip.equals('!' + key + '!')) {
          ((ToolItem) widget).setToolTipText(toolTip.replaceAll("Meta\\+",
              Constants.isOSX ? "Cmd+" : "Ctrl+"));
        }
      }
    } else if (widget instanceof TableColumn) {
      String key = (String) widget.getData();
      if (key != null) {
        if (!key.endsWith(".info"))
          key += ".info";
        String toolTip = MessageText.getString(key, (String) null);
        if (toolTip == null)
          toolTip = MessageText.getString(key.substring(0, key.length() - 5),
              (String) null);
        if (toolTip != null) {
          try {
            ((TableColumn) widget).setToolTipText(toolTip);
          } catch (NoSuchMethodError e) {
            // Pre SWT 3.2
          }
        }
      }
    }
  }
 

  private static void updateLanguageFromData(Widget widget,String[] params) {
    if (widget == null || widget.isDisposed()) {
      return;
    }

      if (widget.getData() != null) {
        String key = null;
        try {
          key = (String) widget.getData();
        } catch(ClassCastException e) {
        }
       
        if(key == null) return;       
        if(key.endsWith(".tooltip")) return;
       
        String  message;
       
        if ( params == null ){
         
          message = MessageText.getString((String) widget.getData());
        }else{
         
             message = MessageText.getString((String) widget.getData(), params);          
        }       
       
        if (widget instanceof MenuItem) {
            final MenuItem menuItem = ((MenuItem) widget);
            boolean indent = (menuItem.getData("IndentItem") != null);

            if(Constants.isOSX)
                message = HIG_ELLIP_EXP.matcher(message).replaceAll("\u2026"); // hig style - ellipsis

            menuItem.setText(indent ? "  " + message : message);

            if(menuItem.getAccelerator() != 0) // opt-in only for now; remove this conditional check to allow accelerators for arbitrary MenuItem objects
                KeyBindings.setAccelerator(menuItem, (String)menuItem.getData()); // update keybinding
        }
        else if (widget instanceof TableColumn) {
          TableColumn tc = ((TableColumn) widget);
          tc.setText(message);
        } else if (widget instanceof Label)
          // Disable Mnemonic when & is before a space.  Otherwise, it's most
          // likely meant to be a Mnemonic
          ((Label) widget).setText(message.replaceAll("& ", "&& "));
        else if (widget instanceof CLabel)
          ((CLabel) widget).setText(message.replaceAll("& ", "&& "));
        else if (widget instanceof Group)
           ((Group) widget).setText(message);
        else if (widget instanceof Button)
           ((Button) widget).setText(message);
        else if (widget instanceof CTabItem)
           ((CTabItem) widget).setText(message);
        else if (widget instanceof TabItem)
           ((TabItem) widget).setText(message);
        else if (widget instanceof TreeItem)
          ((TreeItem) widget).setText(message);
        else if(widget instanceof Shell)
          ((Shell) widget).setText(message);
        else if(widget instanceof ToolItem)
            ((ToolItem) widget).setText(message);
        else if(widget instanceof Text)
          ((Text) widget).setText(message);
        else if(widget instanceof TableColumnOrTreeColumn)
          ((TableColumnOrTreeColumn) widget).setText(message);
        else if(widget instanceof TreeColumn)
          ((TreeColumn) widget).setText(message);
        else{
          Debug.out( "No cast for " + widget.getClass().getName());
        }
      }
  }

  public static void setLanguageTooltip(Widget widget, String key) {
    if (widget == null || widget.isDisposed()) {
      return;
    }

    widget.setData(key);
    updateTooltipLanguageFromData(widget);
  }

  public static void updateTooltipLanguageFromData(Widget widget) {
    if (widget == null || widget.isDisposed()) {
      return;
    }
    if (widget.getData() != null) {
      String sToolTip = MessageText.getString((String) widget.getData());
      if (widget instanceof CLabel)
        ((CLabel) widget).setToolTipText(sToolTip);
      else if (widget instanceof Label)
        ((Label) widget).setToolTipText(sToolTip);
      else if (widget instanceof Text)
        ((Text) widget).setToolTipText(sToolTip);
      else
        System.out.println("No cast for " + widget.getClass().getName());
    }
  }
}
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