/* GtkLabelPeer.java -- Implements LabelPeer with GTK
   Copyright (C) 1998, 1999, 2005, 2006  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath 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, or (at your option)
any later version.

GNU Classpath 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 GNU Classpath; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.

As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module.  An independent module is a module which is not derived from
or based on this library.  If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so.  If you do not wish to do so, delete this
exception statement from your version. */


package gnu.java.awt.peer.gtk;

import java.awt.Label;
import java.awt.peer.LabelPeer;

// A composite widget.  GtkLabels have transparent backgrounds.  An
// AWT Label is opaque.  To compensate, a GtkLabelPeer is a GtkLabel
// packed in a GtkEventBox.
public class GtkLabelPeer extends GtkComponentPeer
    implements LabelPeer
{
  native void create (String text, float alignment);

  /**
   * Overridden to set the Font of the label inside the gtk_event_box.
   */
  protected native void gtkWidgetModifyFont(String name, int style, int size);

  native void nativeSetAlignment (float alignment);

  public native void setNativeText(String text);
  native void setNativeBounds (int x, int y, int width, int height);

  // Because this is a composite widget, we need to retrieve the
  // GtkLabel's preferred dimensions, not the enclosing GtkEventBox's.
  native void gtkWidgetGetPreferredDimensions (int[] dim);

  void create ()
  {
    Label label = (Label) awtComponent;
    create (label.getText (), getGtkAlignment (label.getAlignment ()));
  }

  public void setText(String text)
  {
    if (text != null)
      setNativeText(text);
  }
  
  public GtkLabelPeer (Label l)
  {
    super (l);
  }

  public void setAlignment (int alignment)
  {
    nativeSetAlignment (getGtkAlignment (alignment));
  }

  float getGtkAlignment (int alignment)
  {
    switch (alignment)
      {
      case Label.LEFT:
        return 0.0f;
      case Label.CENTER:
        return 0.5f;
      case Label.RIGHT:
        return 1.0f;
      }

    return 0.0f;
  }
}