/* Copyright (C) 2000  Free Software Foundation

   This file is part of libgcj.

This software is copyrighted work licensed under the terms of the
Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
details.  */

package gnu.awt.xlib;

import java.awt.*;
import java.awt.peer.*;
import java.awt.image.ImageProducer;
import java.awt.image.ImageObserver;
import java.net.*;
import java.awt.datatransfer.Clipboard;

import gnu.gcj.xlib.Display;
import gnu.gcj.xlib.Screen;
import gnu.gcj.xlib.Visual;

public class XToolkit extends Toolkit
{
  static XToolkit INSTANCE;
  
  Display display;

  EventQueue queue;
  XEventLoop eventLoop;

  XGraphicsConfiguration defaultConfig;

  public XToolkit()
  {
    INSTANCE = this;
    display = new Display();
    synchronized (display)
      {
	queue = new XEventQueue(display);
	eventLoop = new XEventLoop(display, queue);
      }
  }

  public void flushIfIdle()
  {
    eventLoop.flushIfIdle();
  }

  protected ButtonPeer createButton(Button frontend)
  {
    // FIXME: Stubbed out, needs Swing:
    /*
    XCanvasPeer realPeer = new XCanvasPeer(frontend);
    SButtonPeer sbPeer = new SButtonPeer(frontend, realPeer);
    return sbPeer;
    */
    return null;
  }
    
  protected TextFieldPeer createTextField(TextField frontend)
  {
    return null; // FIXME
  }
    
  protected LabelPeer createLabel(Label frontend) 
  {
    return null; // FIXME
  }
    
  protected ListPeer createList(List frontend) 
  {
    return null; // FIXME
  }
  
  protected CheckboxPeer createCheckbox(Checkbox frontend) 
  {
    return null; // FIXME
  }
    
  protected ScrollbarPeer createScrollbar(Scrollbar frontend) 
  {
    return null; // FIXME
  }
  
  protected ScrollPanePeer createScrollPane(ScrollPane frontend) 
  {
    return null; // FIXME
  }
  
  protected TextAreaPeer createTextArea(TextArea frontend) 
  {
    return null; // FIXME
  }
  
  protected ChoicePeer createChoice(Choice frontend) 
  {
    return null; // FIXME
  }
  
  protected FramePeer createFrame(Frame frontend) {
    return new XFramePeer(frontend);
  }

  protected CanvasPeer createCanvas(Canvas frontend) {
    XCanvasPeer peer = new XCanvasPeer(frontend);
    return peer;
  }
  
  protected PanelPeer createPanel(Panel frontend) {
    return new XPanelPeer(frontend);
  }

  protected WindowPeer createWindow(Window frontend) 
  {
    return null; // FIXME
  }
    
  protected DialogPeer createDialog(Dialog frontend) 
  {
    return null; // FIXME
  }
  
  protected MenuBarPeer createMenuBar(MenuBar frontend) 
  {
    return null; // FIXME
  }
  
  protected MenuPeer createMenu(Menu frontend) 
  {
    return null; // FIXME
  }
  
  protected PopupMenuPeer createPopupMenu(PopupMenu frontend) 
  {
    return null; // FIXME
  }
  
  protected MenuItemPeer createMenuItem(MenuItem frontend) 
  {
    return null; // FIXME
  }
  
  protected FileDialogPeer createFileDialog(FileDialog frontend) 
  {
    return null; // FIXME
  }
  
  protected CheckboxMenuItemPeer
      createCheckboxMenuItem(CheckboxMenuItem frontend) 
  {
    return null; // FIXME
  }

  protected java.awt.peer.FontPeer getFontPeer(String name, int style) 
  {
    return null;
  }

  public Dimension getScreenSize()
  { 
    throw new UnsupportedOperationException("not implemented yet");
  }

  public int getScreenResolution()
  {
    throw new UnsupportedOperationException("not implemented yet");
  }
  
  public java.awt.image.ColorModel getColorModel()
  {
    throw new UnsupportedOperationException("not implemented yet");
  }

  public String[] getFontList()
  {
    throw new UnsupportedOperationException("not implemented yet");
  }

  public FontMetrics getFontMetrics(Font font)
  {
    return defaultConfig.getXFontMetrics(font);
  }

  public void sync()
  {
    throw new UnsupportedOperationException("not implemented yet");
  }
    
  public Image getImage(String filename)
  {
    return createImage(filename);
  }
  
  public Image getImage(URL url)
  {
    throw new UnsupportedOperationException("not implemented yet");
  }

  public Image createImage(String filename)
  {
    // FIXME: Stubbed out. We need a proper image I/O API.

    /*
    BufferedImage jpeg;
    FileInputStream fis = openFile(filename);
    if (fis == null)
      return null;
    
    BasicRasterImageConsumer consumer = new BasicRasterImageConsumer();
    JPEGImageDecoder jid = new JPEGImageDecoder(fis);

    jid.startProduction(consumer);
    jpeg = consumer.getImage();
    
    int w = jpeg.getWidth();
    int h = jpeg.getHeight();
    
    BufferedImage img =
      getDefaultXGraphicsConfiguration().createCompatibleImage(w, h);
    
    Renderers renderers = Renderers.getInstance();
    
    RasterOp renderer = renderers.createRenderer(jpeg.getColorModel(),
						 jpeg.getSampleModel(),
						 img.getColorModel(),
						 img.getSampleModel());
	
    if (renderer == null)
      {
	throw new UnsupportedOperationException("couldn't find renderer");
      }

    renderer.filter(jpeg.getRaster(), img.getRaster());
    
    return img;
    */

    return null;
  }

  public Image createImage(URL url)
  {
    throw new UnsupportedOperationException("not implemented yet");
  }

  public boolean prepareImage(Image image,
			      int width,
			      int height,
			      ImageObserver observer)
  {
    throw new UnsupportedOperationException("not implemented yet");
  }
  
  public int checkImage(Image image,
			int width,
			int height,
			ImageObserver observer)
  {
    throw new UnsupportedOperationException("not implemented yet");
  }
  
  public Image createImage(ImageProducer producer)
  {
    throw new UnsupportedOperationException("not implemented yet");
  }

  public Image createImage(byte[] imagedata,
			   int imageoffset,
			   int imagelength)
  {
    throw new UnsupportedOperationException("not implemented yet");
  }

  /*
    public PrintJob getPrintJob(Frame frame,
				String jobtitle,
				Properties props);
  */

  public void beep()
  {
    throw new UnsupportedOperationException("not implemented yet");
  }

  public Clipboard getSystemClipboard() 
  {
    return null; // FIXME
  }
    
  protected EventQueue getSystemEventQueueImpl()
  {
    return queue;
  }
    
  XGraphicsConfiguration getDefaultXGraphicsConfiguration()
  {
    if (defaultConfig == null)
      {
	Screen screen = display.getDefaultScreen();
	Visual visual = screen.getRootVisual();
	defaultConfig = new XGraphicsConfiguration(visual);

	// ASSERT:
	if (!defaultConfig.getVisual().getScreen().equals(screen))
	  {
	    String msg = "screen of graphics configuration is not " +
	      "default screen";
	    throw new Error(msg);
	  }
      }
    
    return defaultConfig;
  }


    /*
    public DragSourceContextPeer
	createDragSourceContextPeer(DragGestureEvent dge)
	throws InvalidDnDOperationException;

    public DragGestureRecognizer
	createDragGestureRecognizer(Class abstractRecognizerClass,
				    DragSource ds, Component c,
				    int srcActions, DragGestureListener dgl) {
	throw new UnsupportedOperationException("not implemented");
    }
    */

    
    /*
    public Map mapInputMethodHighlight(InputMethodHighlight highlight);
    */
}