/***************************************************************************
           mpagedisplay.cpp  -  Kugar page display widget
           -------------------
 begin     : Sun Aug 15 1999
 copyright : (C) 1999 by Mutiny Bay Software
 email     : info@mutinybaysoftware.com
***************************************************************************/

#include "mpagedisplay.h"

/** Constructor */
MPageDisplay::MPageDisplay( QWidget * parent, const char *name ) : QWidget( parent, name ) {
  buffer = new QPixmap();
  buffer->resize( 1, 1 );
  bufferCopy = new QPixmap();
  bufferCopy->resize( 1, 1 );
}

/** Destructor */
MPageDisplay::~MPageDisplay() {
  if ( buffer )
    delete buffer;
  if ( bufferCopy )
    delete bufferCopy;
}

/** Sets the report page image */
void MPageDisplay::setPage( QPicture * image ) {
  buffer->fill( white );
  QPainter p( buffer );
  image->play( &p );
  *bufferCopy = *buffer;
}

/** Display object's paint event */
void MPageDisplay::paintEvent( QPaintEvent * event ) {
  bitBlt( this, 0, 0, buffer );
}

/** Sets the page display dimensions */
void MPageDisplay::setPageDimensions( QSize size ) {
  buffer->resize( size );
  resize( size );
}

// Return the preferred size of the display.

QSize MPageDisplay::sizeHint() const {
  return buffer->size();
}

// Return the size policy.

QSizePolicy MPageDisplay::sizePolicy() const {
  return QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed );
}

void MPageDisplay::zoomUp() {
  QImage img;
  img = *bufferCopy;
  int width = buffer->width() * 1.25;
  int height = buffer->height() * 1.25;
  if ( !img.isNull() ) {
    buffer->resize( width, height );
    resize( width, height );
    *buffer = img.smoothScale( width, height );
  }
}

void MPageDisplay::zoomDown() {
  QImage img;
  img = *bufferCopy;
  int width = buffer->width() / 1.25;
  int height = buffer->height() / 1.25;
  if ( !img.isNull() ) {
    buffer->resize( width, height );
    resize( width, height );
    *buffer = img.smoothScale( width, height );
  }
}