/*
***************************************************************************
*
* Author: Teunis van Beelen
*
* Copyright (C) 2009 - 2022 Teunis van Beelen
*
* Email: teuniz@protonmail.com
*
***************************************************************************
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*
***************************************************************************
*/



#include "special_button.h"


SpecialButton::SpecialButton(QWidget *w_parent) : QWidget(w_parent)
{
  ButtonColor = QColor(Qt::white);
  global_Color = Qt::white;

  buttonText[0] = 0;

  sz_hint_w = 50;
  sz_hint_h = 25;
}


void SpecialButton::paintEvent(QPaintEvent *)
{
  int w, h;

  QPainter painter(this);
#if QT_VERSION >= 0x050000
  painter.setRenderHint(QPainter::Qt4CompatiblePainting, true);
#endif

  painter.save();

  w = width();
  h = height();

  painter.setRenderHint(QPainter::Antialiasing);
  painter.setPen(Qt::black);
  painter.drawRect(0, 0, w-1, h-1);
  if(ButtonColor == 127)
  {
    painter.fillRect(      1, 1, w-2, h-2, Qt::yellow);
    painter.fillRect(  (w/6), 1, w-2, h-2, Qt::green);
    painter.fillRect((w*2)/6, 1, w-2, h-2, Qt::red);
    painter.fillRect((w*3)/6, 1, w-2, h-2, Qt::cyan);
    painter.fillRect((w*4)/6, 1, w-2, h-2, Qt::magenta);
    painter.fillRect((w*5)/6, 1, w-2, h-2, Qt::blue);
  }
  else
  {
    painter.fillRect(1, 1, w-2, h-2, ButtonColor);
  }
  if(buttonText[0]!=0)  painter.drawText(0, 0, w, h, Qt::AlignCenter, buttonText);

  painter.restore();
}


int SpecialButton::heightForWidth(int w)
{
  return w;
}


void SpecialButton::setColor(QColor newColor)
{
  ButtonColor = newColor;
  update();
}


QColor SpecialButton::color()
{
  return ButtonColor;
}


void SpecialButton::setGlobalColor(int newColor)
{
  ButtonColor = (Qt::GlobalColor)newColor;
  global_Color = newColor;
  update();
}


int SpecialButton::globalColor()
{
  return global_Color;
}


void SpecialButton::setText(const char *str)
{
  strncpy(buttonText, str, 2047);
  buttonText[2047] = 0;

  if(strlen(buttonText) > 0)
  {
    QFont sp_font;

    QFontMetrics fm(sp_font);

#if QT_VERSION >= 0x050B00
    sz_hint_w = fm.horizontalAdvance(buttonText) + 40;
#else
    sz_hint_w = fm.width(buttonText) + 40;
#endif
    sz_hint_h = fm.height() + 8;

    if(sz_hint_w < 50)  sz_hint_w = 50;
    if(sz_hint_h < 25)  sz_hint_w = 25;
  }
  else
  {
    sz_hint_w = 50;
    sz_hint_h = 25;
  }

  update();
}


void SpecialButton::mouseReleaseEvent(QMouseEvent *release_event)
{
  if(release_event->button()==Qt::LeftButton)
  {
    emit clicked(this);
  }
}


QSize SpecialButton::minimumSizeHint() const
{
  return QSize(sz_hint_w, sz_hint_h);
}




