view main/SVSplash.cpp @ 1583:0510dea7ef84 dev/refactor-piper-related

Introduce some POD structs for describing an external server application and the desired libraries to load from it, and disambiguating between empty list request and invalid list request. This allows for overriding PiperVampPluginFactory behaviour for using a PluginScan to populate the list request.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

#include "SVSplash.h"

#include "../version.h"

#include <QPainter>
#include <QApplication>
#include <QDesktopWidget>
#include <QSvgRenderer>

#include <cmath>

#include <iostream>
using namespace std;

SVSplash::SVSplash()
{
    setWindowFlags(windowFlags() | Qt::WindowStaysOnTopHint);
    
    QPixmap *p1 = new QPixmap(":icons/scalable/sv-splash.png");

    int w = p1->width(), h = p1->height();
    QRect desk = QApplication::desktop()->availableGeometry();

    double dpratio = devicePixelRatio();
    double widthMultiple = double(desk.width()) / double(w);

    int sw = w, sh = h;

    if (widthMultiple > 2.5 || dpratio > 1.0) {

	// Hi-dpi either via pixel doubling or simply via lots of
	// pixels

	double factor = widthMultiple / 2.5;
	if (factor < 1.0) factor = 1.0;
	sw = int(floor(w * factor));
	sh = int(floor(h * factor));

	delete p1;
	m_pixmap = new QPixmap(int(floor(sw * dpratio)),
			       int(floor(sh * dpratio)));

//	cerr << "pixmap size = " << m_pixmap->width() << " * "
//	     << m_pixmap->height() << endl;
	
	m_pixmap->fill(Qt::red);
	QSvgRenderer renderer(QString(":icons/scalable/sv-splash.svg"));
	QPainter painter(m_pixmap);
	renderer.render(&painter);
	painter.end();

    } else {
	// The "low dpi" case
	m_pixmap = p1;
    }
    
    setFixedWidth(sw);
    setFixedHeight(sh);
    setGeometry(desk.x() + desk.width()/2 - sw/2,
		desk.y() + desk.height()/2 - sh/2,
		sw, sh);
}

SVSplash::~SVSplash()
{
    delete m_pixmap;
}

void
SVSplash::finishSplash(QWidget *w)
{
    finish(w);
}

void
SVSplash::drawContents(QPainter *painter)
{
    painter->drawPixmap(rect(), *m_pixmap, m_pixmap->rect());
    QString text = QString("v%1").arg(SV_VERSION);
    painter->drawText
	(width() - painter->fontMetrics().width(text) - (width()/50),
	 (width()/70) + painter->fontMetrics().ascent(),
	 text);
}