AWindow.java :  » Game » starcorp » starcorp » client » gui » Java Open Source

package starcorp.client.gui;

import java.io.InputStream;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;

import starcorp.client.gui.windows.MainWindow;

public abstract class AWindow implements IComponent {
  private static final String ICON_RESOURCE_NAME = "/images/32x32.png";
  private Image icon;
  protected final Display display;
  protected final Shell shell;

  public AWindow(Display display) {
    this(display, SWT.CLOSE);
  }
  
  public AWindow(Display display, int style) {
    this.display = display;
    this.shell = new Shell(display,style);
    this.shell.addListener(SWT.Close, new Listener() {
          public void handleEvent(Event event) {
            close();
          }
    });
    InputStream is = getClass().getResourceAsStream(ICON_RESOURCE_NAME);
    if(is != null) {
      this.icon = new Image(display,is);
      this.shell.setImage(this.icon);
    }
     
  }
  
  public abstract MainWindow getMainWindow();
  
  protected void center() {
    Rectangle bounds = display.getBounds();
    Point size = shell.getSize();
    
    int x = (bounds.width - size.x) / 2;
    int y = (bounds.height - size.y) / 2;
    
    shell.setBounds(x, y, size.x, size.y);
  }

  public void focus() {
    shell.forceFocus();
  }
  
  public void redraw() {
    shell.pack();
  }

  public int messageBox(String heading, String text, int style) {
    MessageBox msgBox = new MessageBox(shell, style);
    msgBox.setText(heading);
    msgBox.setMessage(text);
    return msgBox.open();
  }
  
  public Point computeSize() {
    return shell.computeSize(SWT.DEFAULT, SWT.DEFAULT);
  }

  protected void close() {
    if(icon != null && !icon.isDisposed()) {
      icon.dispose();
    }
    dispose();
  }

  public Shell getShell() {
    return shell;
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((display == null) ? 0 : display.hashCode());
    result = prime * result + ((shell == null) ? 0 : shell.hashCode());
    return result;
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj)
      return true;
    if (obj == null)
      return false;
    if (getClass() != obj.getClass())
      return false;
    final AWindow other = (AWindow) obj;
    if (display == null) {
      if (other.display != null)
        return false;
    } else if (!display.equals(other.display))
      return false;
    if (shell == null) {
      if (other.shell != null)
        return false;
    } else if (!shell.equals(other.shell))
      return false;
    return true;
  }

  public Image getIcon() {
    return icon;
  }
}