// qsynthSystemTray.cpp
//
/****************************************************************************
   Copyright (C) 2003-2016, rncbc aka Rui Nuno Capela. All rights reserved.

   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; either version 2
   of the License, or (at your option) any later version.

   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, write to the Free Software Foundation, Inc.,
   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

*****************************************************************************/

#include "qsynthAbout.h"
#include "qsynthSystemTray.h"

#include <QBitmap>
#include <QPainter>

#if QT_VERSION < 0x040500
namespace Qt {
const WindowFlags WindowCloseButtonHint = WindowFlags(0x08000000);
}
#endif


//----------------------------------------------------------------------------
// qsynthSystemTray -- Custom system tray widget.

// Constructor.
qsynthSystemTray::qsynthSystemTray ( QWidget *pParent )
	: QSystemTrayIcon(pParent)
{
	// Set things inherited...
	if (pParent) {
		m_icon = pParent->windowIcon();
		setBackground(Qt::transparent); // also updates pixmap.
		QSystemTrayIcon::setIcon(m_icon);
		QSystemTrayIcon::setToolTip(pParent->windowTitle());
	}

	// Set proper context menu, even though it's empty...
	QSystemTrayIcon::setContextMenu(&m_menu);

	QObject::connect(&m_menu,
		SIGNAL(aboutToShow()),
		SLOT(contextMenuRequested()));

	QObject::connect(this,
		SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
		SLOT(activated(QSystemTrayIcon::ActivationReason)));

	QSystemTrayIcon::show();
}


// Redirect to hide.
void qsynthSystemTray::close (void)
{
	QSystemTrayIcon::hide();
}


// Handle systeam tray activity.
void qsynthSystemTray::activated ( QSystemTrayIcon::ActivationReason reason )
{
	switch (reason) {
#if 0
	case QSystemTrayIcon::Context:
		contextMenuRequested();
		break;
#endif
	case QSystemTrayIcon::Trigger:
		emit clicked();
		// Fall trhu...
	case QSystemTrayIcon::MiddleClick:
	case QSystemTrayIcon::DoubleClick:
	case QSystemTrayIcon::Unknown:
	default:
		break;
	}
}


void qsynthSystemTray::contextMenuRequested (void)
{
	emit contextMenuRequested(QCursor::pos());
}


// Default destructor.
qsynthSystemTray::~qsynthSystemTray (void)
{
}


// System tray icon/pixmaps update method.
void qsynthSystemTray::updatePixmap (void)
{
	// Renitialize icon as fit...
	m_pixmap = m_icon.pixmap(32, 32);

	// Merge with the overlay pixmap...
	if (!m_pixmapOverlay.mask().isNull()) {
		const int y = m_pixmap.height() - m_pixmapOverlay.height();
		QBitmap mask = m_pixmap.mask();
		QPainter(&mask).drawPixmap(0, y, m_pixmapOverlay.mask());
		m_pixmap.setMask(mask);
		QPainter(&m_pixmap).drawPixmap(0, y, m_pixmapOverlay);
	}

	if (m_background != Qt::transparent) {
		QPixmap pixmap(m_pixmap);
		m_pixmap.fill(m_background);
		QPainter(&m_pixmap).drawPixmap(0, 0, pixmap);
	}

	// Setup system tray icon directly...
	QSystemTrayIcon::setIcon(QIcon(m_pixmap));
}



// Background mask methods.
void qsynthSystemTray::setBackground ( const QColor& background )
{
	// Set background color, now.
	m_background = background;

	updatePixmap();
}

const QColor& qsynthSystemTray::background (void) const
{
	return m_background;
}


// Set system tray icon overlay.
void qsynthSystemTray::setPixmapOverlay ( const QPixmap& pmOverlay )
{
	m_pixmapOverlay = pmOverlay;

	updatePixmap();
}

const QPixmap& qsynthSystemTray::pixmapOverlay (void) const
{
	return m_pixmapOverlay;
}


// end of qsynthSystemTray.cpp