Mercurial > hg > svgui
view layer/ColourMapper.cpp @ 1607:52d4bfba5b3d
Reduce font size when pane is very thin
author | Chris Cannam |
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date | Wed, 06 May 2020 11:44:38 +0100 |
parents | c8a6fd3f9dff |
children |
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/* -*- 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 file copyright 2006-2016 Chris Cannam and QMUL. 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 "ColourMapper.h" #include <iostream> #include <cmath> #include "base/Debug.h" #include <vector> #include <QPainter> using namespace std; static vector<QColor> convertStrings(const vector<QString> &strs, bool reversed) { vector<QColor> converted; for (const auto &s: strs) converted.push_back(QColor(s)); if (reversed) { reverse(converted.begin(), converted.end()); } return converted; } static vector<QColor> ice = convertStrings({ // Based on ColorBrewer ylGnBu "#ffffff", "#ffff00", "#f7fcf0", "#e0f3db", "#ccebc5", "#a8ddb5", "#7bccc4", "#4eb3d3", "#2b8cbe", "#0868ac", "#084081", "#042040" }, true); static vector<QColor> cherry = convertStrings({ "#f7f7f7", "#fddbc7", "#f4a582", "#d6604d", "#b2182b", "#dd3497", "#ae017e", "#7a0177", "#49006a" }, true); static vector<QColor> magma = convertStrings({ "#FCFFB2", "#FCDF96", "#FBC17D", "#FBA368", "#FA8657", "#F66B4D", "#ED504A", "#E03B50", "#C92D59", "#B02363", "#981D69", "#81176D", "#6B116F", "#57096E", "#43006A", "#300060", "#1E0848", "#110B2D", "#080616", "#000005" }, true); static vector<QColor> cividis = convertStrings({ "#00204c", "#00204e", "#002150", "#002251", "#002353", "#002355", "#002456", "#002558", "#00265a", "#00265b", "#00275d", "#00285f", "#002861", "#002963", "#002a64", "#002a66", "#002b68", "#002c6a", "#002d6c", "#002d6d", "#002e6e", "#002e6f", "#002f6f", "#002f6f", "#00306f", "#00316f", "#00316f", "#00326e", "#00336e", "#00346e", "#00346e", "#01356e", "#06366e", "#0a376d", "#0e376d", "#12386d", "#15396d", "#17396d", "#1a3a6c", "#1c3b6c", "#1e3c6c", "#203c6c", "#223d6c", "#243e6c", "#263e6c", "#273f6c", "#29406b", "#2b416b", "#2c416b", "#2e426b", "#2f436b", "#31446b", "#32446b", "#33456b", "#35466b", "#36466b", "#37476b", "#38486b", "#3a496b", "#3b496b", "#3c4a6b", "#3d4b6b", "#3e4b6b", "#404c6b", "#414d6b", "#424e6b", "#434e6b", "#444f6b", "#45506b", "#46506b", "#47516b", "#48526b", "#49536b", "#4a536b", "#4b546b", "#4c556b", "#4d556b", "#4e566b", "#4f576c", "#50586c", "#51586c", "#52596c", "#535a6c", "#545a6c", "#555b6c", "#565c6c", "#575d6d", "#585d6d", "#595e6d", "#5a5f6d", "#5b5f6d", "#5c606d", "#5d616e", "#5e626e", "#5f626e", "#5f636e", "#60646e", "#61656f", "#62656f", "#63666f", "#64676f", "#65676f", "#666870", "#676970", "#686a70", "#686a70", "#696b71", "#6a6c71", "#6b6d71", "#6c6d72", "#6d6e72", "#6e6f72", "#6f6f72", "#6f7073", "#707173", "#717273", "#727274", "#737374", "#747475", "#757575", "#757575", "#767676", "#777776", "#787876", "#797877", "#7a7977", "#7b7a77", "#7b7b78", "#7c7b78", "#7d7c78", "#7e7d78", "#7f7e78", "#807e78", "#817f78", "#828078", "#838178", "#848178", "#858278", "#868378", "#878478", "#888578", "#898578", "#8a8678", "#8b8778", "#8c8878", "#8d8878", "#8e8978", "#8f8a78", "#908b78", "#918c78", "#928c78", "#938d78", "#948e78", "#958f78", "#968f77", "#979077", "#989177", "#999277", "#9a9377", "#9b9377", "#9c9477", "#9d9577", "#9e9676", "#9f9776", "#a09876", "#a19876", "#a29976", "#a39a75", "#a49b75", "#a59c75", "#a69c75", "#a79d75", "#a89e74", "#a99f74", "#aaa074", "#aba174", "#aca173", "#ada273", "#aea373", "#afa473", "#b0a572", "#b1a672", "#b2a672", "#b4a771", "#b5a871", "#b6a971", "#b7aa70", "#b8ab70", "#b9ab70", "#baac6f", "#bbad6f", "#bcae6e", "#bdaf6e", "#beb06e", "#bfb16d", "#c0b16d", "#c1b26c", "#c2b36c", "#c3b46c", "#c5b56b", "#c6b66b", "#c7b76a", "#c8b86a", "#c9b869", "#cab969", "#cbba68", "#ccbb68", "#cdbc67", "#cebd67", "#d0be66", "#d1bf66", "#d2c065", "#d3c065", "#d4c164", "#d5c263", "#d6c363", "#d7c462", "#d8c561", "#d9c661", "#dbc760", "#dcc860", "#ddc95f", "#deca5e", "#dfcb5d", "#e0cb5d", "#e1cc5c", "#e3cd5b", "#e4ce5b", "#e5cf5a", "#e6d059", "#e7d158", "#e8d257", "#e9d356", "#ebd456", "#ecd555", "#edd654", "#eed753", "#efd852", "#f0d951", "#f1da50", "#f3db4f", "#f4dc4e", "#f5dd4d", "#f6de4c", "#f7df4b", "#f9e049", "#fae048", "#fbe147", "#fce246", "#fde345", "#ffe443", "#ffe542", "#ffe642", "#ffe743", "#ffe844", "#ffe945" }, false); static void mapDiscrete(double norm, vector<QColor> &colours, double &r, double &g, double &b) { int n = int(colours.size()); double m = norm * (n-1); if (m >= n-1) { colours[n-1].getRgbF(&r, &g, &b, nullptr); return; } if (m <= 0) { colours[0].getRgbF(&r, &g, &b, nullptr); return; } int base(int(floor(m))); double prop0 = (base + 1.0) - m, prop1 = m - base; QColor c0(colours[base]), c1(colours[base+1]); r = c0.redF() * prop0 + c1.redF() * prop1; g = c0.greenF() * prop0 + c1.greenF() * prop1; b = c0.blueF() * prop0 + c1.blueF() * prop1; } ColourMapper::ColourMapper(int map, bool inverted, double min, double max) : m_map(map), m_inverted(inverted), m_min(min), m_max(max) { if (m_min == m_max) { SVCERR << "WARNING: ColourMapper: min == max (== " << m_min << "), adjusting" << endl; m_max = m_min + 1; } } ColourMapper::~ColourMapper() { } int ColourMapper::getColourMapCount() { return 15; } QString ColourMapper::getColourMapLabel(int n) { // When adding a map, be sure to also update getColourMapCount() if (n >= getColourMapCount()) return QObject::tr("<unknown>"); ColourMap map = (ColourMap)n; switch (map) { case Green: return QObject::tr("Green"); case WhiteOnBlack: return QObject::tr("White on Black"); case BlackOnWhite: return QObject::tr("Black on White"); case Cherry: return QObject::tr("Cherry"); case Wasp: return QObject::tr("Wasp"); case Ice: return QObject::tr("Ice"); case Sunset: return QObject::tr("Sunset"); case FruitSalad: return QObject::tr("Fruit Salad"); case Banded: return QObject::tr("Banded"); case Highlight: return QObject::tr("Highlight"); case Printer: return QObject::tr("Printer"); case HighGain: return QObject::tr("High Gain"); case BlueOnBlack: return QObject::tr("Blue on Black"); case Cividis: return QObject::tr("Cividis"); case Magma: return QObject::tr("Magma"); } return QObject::tr("<unknown>"); } QString ColourMapper::getColourMapId(int n) { if (n >= getColourMapCount()) return "<unknown>"; ColourMap map = (ColourMap)n; switch (map) { case Green: return "Green"; case WhiteOnBlack: return "White on Black"; case BlackOnWhite: return "Black on White"; case Cherry: return "Cherry"; case Wasp: return "Wasp"; case Ice: return "Ice"; case Sunset: return "Sunset"; case FruitSalad: return "Fruit Salad"; case Banded: return "Banded"; case Highlight: return "Highlight"; case Printer: return "Printer"; case HighGain: return "High Gain"; case BlueOnBlack: return "Blue on Black"; case Cividis: return "Cividis"; case Magma: return "Magma"; } return "<unknown>"; } int ColourMapper::getColourMapById(QString id) { ColourMap map = (ColourMap)getColourMapCount(); if (id == "Green") { map = Green; } else if (id == "White on Black") { map = WhiteOnBlack; } else if (id == "Black on White") { map = BlackOnWhite; } else if (id == "Cherry") { map = Cherry; } else if (id == "Wasp") { map = Wasp; } else if (id == "Ice") { map = Ice; } else if (id == "Sunset") { map = Sunset; } else if (id == "Fruit Salad") { map = FruitSalad; } else if (id == "Banded") { map = Banded; } else if (id == "Highlight") { map = Highlight; } else if (id == "Printer") { map = Printer; } else if (id == "High Gain") { map = HighGain; } else if (id == "Blue on Black") { map = BlueOnBlack; } else if (id == "Cividis") { map = Cividis; } else if (id == "Magma") { map = Magma; } if (map == (ColourMap)getColourMapCount()) { return -1; } else { return int(map); } } int ColourMapper::getBackwardCompatibilityColourMap(int n) { /* Returned value should be an index into the series * (Default/Green, Sunset, WhiteOnBlack, BlackOnWhite, RedOnBlue, * YellowOnBlack, BlueOnBlack, FruitSalad, Banded, Highlight, * Printer, HighGain). Minimum 0, maximum 11. */ if (n >= getColourMapCount()) return 0; ColourMap map = (ColourMap)n; switch (map) { case Green: return 0; case WhiteOnBlack: return 2; case BlackOnWhite: return 3; case Cherry: return 4; case Wasp: return 5; case Ice: return 6; case Sunset: return 1; case FruitSalad: return 7; case Banded: return 8; case Highlight: return 9; case Printer: return 10; case HighGain: return 11; case BlueOnBlack: return 6; case Cividis: return 6; case Magma: return 1; } return 0; } QColor ColourMapper::map(double value) const { double norm = (value - m_min) / (m_max - m_min); if (norm < 0.0) norm = 0.0; if (norm > 1.0) norm = 1.0; if (m_inverted) { norm = 1.0 - norm; } double h = 0.0, s = 0.0, v = 0.0, r = 0.0, g = 0.0, b = 0.0; bool hsv = true; double blue = 0.6666, pieslice = 0.3333; if (m_map >= getColourMapCount()) return Qt::black; ColourMap map = (ColourMap)m_map; switch (map) { case Green: h = blue - norm * 2.0 * pieslice; s = 0.5f + norm/2.0; v = norm; break; case WhiteOnBlack: r = g = b = norm; hsv = false; break; case BlackOnWhite: r = g = b = 1.0 - norm; hsv = false; break; case Cherry: hsv = false; mapDiscrete(norm, cherry, r, g, b); break; case Wasp: h = 0.15; s = 1.0; v = norm; break; case BlueOnBlack: h = blue; s = 1.0; v = norm * 2.0; if (v > 1.0) { v = 1.0; s = 1.0 - (sqrt(norm) - 0.707) * 3.413; if (s < 0.0) s = 0.0; if (s > 1.0) s = 1.0; } break; case Sunset: r = (norm - 0.24) * 2.38; if (r > 1.0) r = 1.0; if (r < 0.0) r = 0.0; g = (norm - 0.64) * 2.777; if (g > 1.0) g = 1.0; if (g < 0.0) g = 0.0; b = (3.6f * norm); if (norm > 0.277) b = 2.0 - b; if (b > 1.0) b = 1.0; if (b < 0.0) b = 0.0; hsv = false; break; case FruitSalad: h = blue + (pieslice/6.0) - norm; if (h < 0.0) h += 1.0; s = 1.0; v = 1.0; break; case Banded: if (norm < 0.125) return Qt::darkGreen; else if (norm < 0.25) return Qt::green; else if (norm < 0.375) return Qt::darkBlue; else if (norm < 0.5) return Qt::blue; else if (norm < 0.625) return Qt::darkYellow; else if (norm < 0.75) return Qt::yellow; else if (norm < 0.875) return Qt::darkRed; else return Qt::red; break; case Highlight: if (norm > 0.99) return Qt::white; else return Qt::darkBlue; case Printer: if (norm > 0.8) { r = 1.0; } else if (norm > 0.7) { r = 0.9; } else if (norm > 0.6) { r = 0.8; } else if (norm > 0.5) { r = 0.7; } else if (norm > 0.4) { r = 0.6; } else if (norm > 0.3) { r = 0.5; } else if (norm > 0.2) { r = 0.4; } else { r = 0.0; } r = g = b = 1.0 - r; hsv = false; break; case HighGain: if (norm <= 1.0 / 256.0) { norm = 0.0; } else { norm = 0.1f + (pow(((norm - 0.5) * 2.0), 3.0) + 1.0) / 2.081; } // now as for Sunset r = (norm - 0.24) * 2.38; if (r > 1.0) r = 1.0; if (r < 0.0) r = 0.0; g = (norm - 0.64) * 2.777; if (g > 1.0) g = 1.0; if (g < 0.0) g = 0.0; b = (3.6f * norm); if (norm > 0.277) b = 2.0 - b; if (b > 1.0) b = 1.0; if (b < 0.0) b = 0.0; hsv = false; /* if (r > 1.0) r = 1.0; r = g = b = 1.0 - r; hsv = false; */ break; case Ice: hsv = false; mapDiscrete(norm, ice, r, g, b); break; case Cividis: hsv = false; mapDiscrete(norm, cividis, r, g, b); break; case Magma: hsv = false; mapDiscrete(norm, magma, r, g, b); break; } if (hsv) { return QColor::fromHsvF(h, s, v); } else { return QColor::fromRgbF(r, g, b); } } QColor ColourMapper::getContrastingColour() const { if (m_map >= getColourMapCount()) return Qt::white; ColourMap map = (ColourMap)m_map; switch (map) { case Green: return QColor(255, 150, 50); case WhiteOnBlack: return Qt::red; case BlackOnWhite: return Qt::darkGreen; case Cherry: return Qt::green; case Wasp: return QColor::fromHsv(240, 255, 255); case Ice: return Qt::red; case Sunset: return Qt::white; case FruitSalad: return Qt::white; case Banded: return Qt::cyan; case Highlight: return Qt::red; case Printer: return Qt::red; case HighGain: return Qt::red; case BlueOnBlack: return Qt::red; case Cividis: return Qt::white; case Magma: return Qt::white; } return Qt::white; } bool ColourMapper::hasLightBackground() const { if (m_map >= getColourMapCount()) return false; ColourMap map = (ColourMap)m_map; switch (map) { case BlackOnWhite: case Printer: case HighGain: return true; case Green: case Sunset: case WhiteOnBlack: case Cherry: case Wasp: case Ice: case FruitSalad: case Banded: case Highlight: case BlueOnBlack: case Cividis: case Magma: default: return false; } } QPixmap ColourMapper::getExamplePixmap(QSize size) const { QPixmap pmap(size); pmap.fill(Qt::white); QPainter paint(&pmap); int w = size.width(), h = size.height(); int margin = 2; if (w < 4 || h < 4) margin = 0; else if (w < 8 || h < 8) margin = 1; int n = w - margin*2; for (int x = 0; x < n; ++x) { double value = m_min + ((m_max - m_min) * x) / (n-1); QColor colour(map(value)); paint.setPen(colour); paint.drawLine(x + margin, margin, x + margin, h - margin); } return pmap; }