rssguard/src/gui/plaintoolbutton.cpp

// This file is part of RSS Guard.

//
// Copyright (C) 2011-2017 by Martin Rotter <rotter.martinos@gmail.com>
//
// RSS Guard 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, either version 3 of the License, or
// (at your option) any later version.
//
// RSS Guard 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 RSS Guard. If not, see <http://www.gnu.org/licenses/>.

#include "gui/plaintoolbutton.h"

#include <QAction>
#include <QPainter>
#include <QPaintEvent>
#include <QStyle>
#include <QStyleOption>
#include <QToolButton>

PlainToolButton::PlainToolButton(QWidget* parent) : QToolButton(parent), m_padding(0) {}

PlainToolButton::~PlainToolButton() {}

void PlainToolButton::paintEvent(QPaintEvent* e) {
  Q_UNUSED(e)
  QPainter p(this);
  QRect rect(QPoint(0, 0), size());

  // Set padding.
  rect.adjust(m_padding, m_padding, -m_padding, -m_padding);

  if (isEnabled()) {
    if (underMouse() || isChecked()) {
      p.setOpacity(0.7);
    }
  }
  else {
    p.setOpacity(0.3);
  }

  icon().paint(&p, rect);
}

int PlainToolButton::padding() const {
  return m_padding;
}

void PlainToolButton::setPadding(int padding) {
  m_padding = padding;
  repaint();
}

void PlainToolButton::setChecked(bool checked) {
  QToolButton::setChecked(checked);
  repaint();
}

void PlainToolButton::reactOnActionChange(QAction* action) {
  if (action != nullptr) {
    setEnabled(action->isEnabled());
    setCheckable(action->isCheckable());
    setChecked(action->isChecked());
    setIcon(action->icon());
    setToolTip(action->toolTip());
  }
}

void PlainToolButton::reactOnSenderActionChange() {
  reactOnActionChange(qobject_cast<QAction*>(sender()));
}