/*
 * This file Copyright (C) 2009-2014 Mnemosyne LLC
 *
 * It may be used under the GNU Public License v2 or v3 licenses,
 * or any future license endorsed by Mnemosyne LLC.
 *
 * $Id$
 */

#include <iostream>
#include <QIcon>
#include <QStyleOption>
#include <QStyleOptionButton>
#include <QStylePainter>

#include "hig.h"
#include "triconpushbutton.h"

TrIconPushButton::TrIconPushButton (QWidget * parent):
  QPushButton (parent)
{
}

TrIconPushButton::TrIconPushButton (const QIcon& icon, QWidget * parent):
  QPushButton (parent)
{
  setIcon (icon);
}

QSize
TrIconPushButton::sizeHint () const
{
  QSize s = iconSize ();
  s.rwidth() += HIG::PAD_SMALL*2;
  return s;
}

void
TrIconPushButton::paintEvent (QPaintEvent *)
{
  QStylePainter p (this);
  QStyleOptionButton opt;
  initStyleOption (&opt);

  QIcon::Mode mode = opt.state & QStyle::State_Enabled ? QIcon::Normal : QIcon::Disabled;
  if ((mode == QIcon::Normal) &&  (opt.state & QStyle::State_HasFocus))
    mode = QIcon::Active;
  QPixmap pixmap = opt.icon.pixmap (opt.iconSize, QIcon::Active, QIcon::On);
  QRect iconRect (opt.rect.x() + HIG::PAD_SMALL,
                  opt.rect.y() + (opt.rect.height() - pixmap.height())/2,
                  pixmap.width(),
                  pixmap.height());
  if (opt.state &  (QStyle::State_On | QStyle::State_Sunken))
    iconRect.translate (style()->pixelMetric (QStyle::PM_ButtonShiftHorizontal, &opt, this),
                        style()->pixelMetric (QStyle::PM_ButtonShiftVertical, &opt, this));

  p.drawPixmap(iconRect, pixmap);

  if (opt.state & QStyle::State_HasFocus)
    p.drawPrimitive (QStyle::PE_FrameFocusRect, opt);
}