/* This file is part of Clementine. Copyright 2003, Stanislav Karchebny Copyright 2003, Max Howell Copyright 2009-2010, David Sansome Copyright 2014, Mark Furneaux Copyright 2014, Krzysztof Sobiecki Copyright 2014, John Maguire 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 . */ /* Original Author: Stanislav Karchebny 2003 * Original Author: Max Howell 2003 */ #include #include #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(bar_height[i]); canvas_painter.drawPixmap(x + 1, y, barPixmap, 0, y, -1, -1); canvas_painter.drawPixmap(x + 1, hd2, barPixmap, 0, static_cast(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_castbar_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_); }