102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
/* This file is part of Clementine.
|
|
Copyright 2003, Stanislav Karchebny <berkus@users.sf.net>
|
|
Copyright 2003, Max Howell <max.howell@methylblue.com>
|
|
Copyright 2009-2010, David Sansome <davidsansome@gmail.com>
|
|
Copyright 2014, Mark Furneaux <mark@romaco.ca>
|
|
Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
|
|
Copyright 2014, John Maguire <john.maguire@gmail.com>
|
|
|
|
Clementine 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.
|
|
|
|
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* Original Author: Stanislav Karchebny <berkus@users.sf.net> 2003
|
|
* Original Author: Max Howell <max.howell@methylblue.com> 2003
|
|
*/
|
|
|
|
#include <cmath>
|
|
#include <QPainter>
|
|
|
|
#include "turbine.h"
|
|
|
|
using Analyzer::Scope;
|
|
|
|
const char* TurbineAnalyzer::kName =
|
|
QT_TRANSLATE_NOOP("AnalyzerContainer", "Turbine");
|
|
|
|
void TurbineAnalyzer::analyze(QPainter& p, const Scope& scope, bool new_frame) {
|
|
if (!new_frame) {
|
|
p.drawPixmap(0, 0, canvas_);
|
|
return;
|
|
}
|
|
|
|
float h;
|
|
const uint hd2 = height() / 2;
|
|
const uint MAX_HEIGHT = hd2 - 1;
|
|
|
|
QPainter canvas_painter(&canvas_);
|
|
canvas_.fill(palette().color(QPalette::Background));
|
|
|
|
for (uint i = 0, x = 0, y; i < BAND_COUNT; ++i, x += COLUMN_WIDTH + 1) {
|
|
h = log10(scope[i] * 256.0) * F * 0.5;
|
|
|
|
if (h > MAX_HEIGHT) h = MAX_HEIGHT;
|
|
|
|
if (h > bar_height[i]) {
|
|
bar_height[i] = h;
|
|
|
|
if (h > peak_height[i]) {
|
|
peak_height[i] = h;
|
|
peak_speed[i] = 0.01;
|
|
} else {
|
|
goto peak_handling;
|
|
}
|
|
} else {
|
|
if (bar_height[i] > 0.0) {
|
|
bar_height[i] -= K_barHeight; // 1.4
|
|
if (bar_height[i] < 0.0) bar_height[i] = 0.0;
|
|
}
|
|
|
|
peak_handling:
|
|
|
|
if (peak_height[i] > 0.0) {
|
|
peak_height[i] -= peak_speed[i];
|
|
peak_speed[i] *= F_peakSpeed; // 1.12
|
|
|
|
if (peak_height[i] < bar_height[i]) peak_height[i] = bar_height[i];
|
|
if (peak_height[i] < 0.0) peak_height[i] = 0.0;
|
|
}
|
|
}
|
|
|
|
y = hd2 - static_cast<uint>(bar_height[i]);
|
|
canvas_painter.drawPixmap(x + 1, y, barPixmap, 0, y, -1, -1);
|
|
canvas_painter.drawPixmap(x + 1, hd2, barPixmap, 0,
|
|
static_cast<int>(bar_height[i]),
|
|
-1, -1);
|
|
|
|
canvas_painter.setPen(palette().color(QPalette::Highlight));
|
|
if (bar_height[i] > 0)
|
|
canvas_painter.drawRect(x, y, COLUMN_WIDTH - 1,
|
|
static_cast<int>bar_height[i] * 2 - 1);
|
|
|
|
const uint x2 = x + COLUMN_WIDTH - 1;
|
|
canvas_painter.setPen(palette().color(QPalette::Base));
|
|
y = hd2 - uint(peak_height[i]);
|
|
canvas_painter.drawLine(x, y, x2, y);
|
|
y = hd2 + uint(peak_height[i]);
|
|
canvas_painter.drawLine(x, y, x2, y);
|
|
}
|
|
|
|
p.drawPixmap(0, 0, canvas_);
|
|
}
|