/*
 * desktopwidget.cpp
 *
 * $Id: desktopwidget.cpp,v 0.1 1998/12/09 18:13:56 thorsten Exp thorsten $
 *
 * This file is part of XGlobe. See README for details.
 *
 * Copyright (C) 1998 Thorsten Scheuermann
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public Licenses as published by
 * the Free Software Foundation.
 *
 * $Log: desktopwidget.cpp,v $
 * Revision 0.1  1998/12/09 18:13:56  thorsten
 * initial revision
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include "desktopwidget.h"

DesktopWidget::DesktopWidget(QWidget *parent, const char *name)
    : QWidget( parent, name, WType_Desktop | WPaintDesktop)
{
  haveImage = FALSE;
  currentImage = new QPixmap(width(), height());
  if(!currentImage)
  {
    fprintf(stderr, "Not enough memory!\n");
    ::exit(1);
  }
//  fprintf(stderr, "Desktop size: %dx%d\n",width(), height());
}

DesktopWidget::~DesktopWidget()
{
  if(currentImage)
    delete currentImage;
}

void DesktopWidget::paintEvent(QPaintEvent *pe)
{
  QPainter p(this);
  
  if(!haveImage)
  {
    p.setFont(QFont("helvetica", 35));
    QRect br = p.fontMetrics().boundingRect("Please wait...");
    p.setPen(QColor(255, 0, 0));
    p.fillRect(0, 0, width(), height(), QColor(0, 0, 0));
    p.drawText((width()-br.width())/2, (height()-br.height())/2,
               "Please wait...");
  }
  else
  {
    p.drawPixmap(pe->rect().left(), pe->rect().top(),
                 *currentImage, pe->rect().left(), pe->rect().top(),
                 pe->rect().width(), pe->rect().height());
  }
}

void DesktopWidget::updateDisplay(QImage *image)
{
  ASSERT(image != NULL);
  currentImage->convertFromImage(*image);
  haveImage = TRUE;
  setBackgroundPixmap(*currentImage);
  update();
}