Mercurial > hg > svgui
view layer/SingleColourLayer.cpp @ 789:9fd1bdf214dd tonioni
Play pointer: when user drags pane during playback such that the pointer is no longer visible, accept that and stop trying to track it until pointer naturally comes back within visible area
author | Chris Cannam |
---|---|
date | Thu, 12 Jun 2014 12:48:11 +0100 |
parents | 8b614632568c |
children | 1d526ba11a24 |
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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 2007 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 "SingleColourLayer.h" #include "ColourDatabase.h" #include "view/View.h" #include <iostream> #include <QTextStream> #include <QApplication> //#define DEBUG_COLOUR_SELECTION 1 SingleColourLayer::ColourRefCount SingleColourLayer::m_colourRefCount; SingleColourLayer::SingleColourLayer() : m_colour(0), m_colourExplicitlySet(false), m_defaultColourSet(false) { // Reference current colour because setDefaulColourFor // will unreference it before (possibly) changing it. refColor(); setDefaultColourFor(0); } SingleColourLayer::~SingleColourLayer() { unrefColor(); } QPixmap SingleColourLayer::getLayerPresentationPixmap(QSize size) const { return ColourDatabase::getInstance()->getExamplePixmap(m_colour, size); } bool SingleColourLayer::hasLightBackground() const { bool dark = ColourDatabase::getInstance()->useDarkBackground(m_colour); return !dark; } Layer::PropertyList SingleColourLayer::getProperties() const { PropertyList list = Layer::getProperties(); list.push_back("Colour"); return list; } QString SingleColourLayer::getPropertyLabel(const PropertyName &name) const { if (name == "Colour") return tr("Colour"); return ""; } Layer::PropertyType SingleColourLayer::getPropertyType(const PropertyName &name) const { if (name == "Colour") return ColourProperty; return InvalidProperty; } QString SingleColourLayer::getPropertyGroupName(const PropertyName &) const { return QString(); } int SingleColourLayer::getPropertyRangeAndValue(const PropertyName &name, int *min, int *max, int *deflt) const { int val = 0; int garbage0, garbage1, garbage2; if (!min) min = &garbage0; if (!max) max = &garbage1; if (!deflt) deflt = &garbage2; if (name == "Colour") { ColourDatabase::getInstance()->getColourPropertyRange(min, max); *deflt = 0; //!!! val = m_colour; } else { val = Layer::getPropertyRangeAndValue(name, min, max, deflt); } return val; } QString SingleColourLayer::getPropertyValueLabel(const PropertyName &name, int value) const { if (name == "Colour") { ColourDatabase *db = ColourDatabase::getInstance(); if (value >= 0 && size_t(value) < db->getColourCount()) { return db->getColourName(value); } } return tr("<unknown>"); } RangeMapper * SingleColourLayer::getNewPropertyRangeMapper(const PropertyName &) const { return 0; } void SingleColourLayer::setProperty(const PropertyName &name, int value) { if (name == "Colour") { setBaseColour(value); } } void SingleColourLayer::setDefaultColourFor(View *v) { #ifdef DEBUG_COLOUR_SELECTION SVDEBUG << "SingleColourLayer::setDefaultColourFor: m_colourExplicitlySet = " << m_colourExplicitlySet << ", m_defaultColourSet " << m_defaultColourSet << endl; #endif if (m_colourExplicitlySet || m_defaultColourSet) return; if (v) m_defaultColourSet = true; // v==0 case doesn't really count bool dark = false; if (v) { dark = !v->hasLightBackground(); } else { QColor bg = QApplication::palette().color(QPalette::Window); if (bg.red() + bg.green() + bg.blue() < 384) dark = true; } ColourDatabase *cdb = ColourDatabase::getInstance(); int hint = -1; bool impose = false; if (v) { // We don't want to call this if !v because that probably // means we're being called from the constructor, and this is // a virtual function hint = getDefaultColourHint(dark, impose); #ifdef DEBUG_COLOUR_SELECTION cerr << "hint = " << hint << ", impose = " << impose << endl; #endif } else { #ifdef DEBUG_COLOUR_SELECTION cerr << "(from ctor)" << endl; #endif } if (hint >= 0 && impose) { setBaseColour(hint); return; } unrefColor(); int bestCount = 0, bestColour = -1; for (int i = 0; i < cdb->getColourCount(); ++i) { int index = i; if (hint > 0) index = (index + hint) % cdb->getColourCount(); if (cdb->useDarkBackground(index) != dark) continue; int count = 0; if (m_colourRefCount.find(index) != m_colourRefCount.end()) { count = m_colourRefCount[index]; } #ifdef DEBUG_COLOUR_SELECTION cerr << "index = " << index << ", count = " << count; #endif if (bestColour < 0 || count < bestCount) { bestColour = index; bestCount = count; #ifdef DEBUG_COLOUR_SELECTION cerr << " *"; #endif } #ifdef DEBUG_COLOUR_SELECTION cerr << endl; #endif } if (bestColour < 0) m_colour = 0; else m_colour = bestColour; refColor(); } void SingleColourLayer::setBaseColour(int colour) { m_colourExplicitlySet = true; if (m_colour == colour) return; refColor(); m_colour = colour; unrefColor(); flagBaseColourChanged(); emit layerParametersChanged(); } int SingleColourLayer::getBaseColour() const { return m_colour; } QColor SingleColourLayer::getBaseQColor() const { return ColourDatabase::getInstance()->getColour(m_colour); } QColor SingleColourLayer::getBackgroundQColor(View *v) const { return v->getBackground(); } QColor SingleColourLayer::getForegroundQColor(View *v) const { return v->getForeground(); } std::vector<QColor> SingleColourLayer::getPartialShades(View *v) const { std::vector<QColor> s; QColor base = getBaseQColor(); QColor bg = getBackgroundQColor(v); for (int i = 0; i < 3; ++i) { int red = base.red() + ((bg.red() - base.red()) * (i + 1)) / 4; int green = base.green() + ((bg.green() - base.green()) * (i + 1)) / 4; int blue = base.blue() + ((bg.blue() - base.blue()) * (i + 1)) / 4; s.push_back(QColor(red, green, blue)); } return s; } void SingleColourLayer::toXml(QTextStream &stream, QString indent, QString extraAttributes) const { QString s; QString colourName, colourSpec, darkbg; ColourDatabase::getInstance()->getStringValues (m_colour, colourName, colourSpec, darkbg); s += QString("colourName=\"%1\" " "colour=\"%2\" " "darkBackground=\"%3\" ") .arg(colourName) .arg(colourSpec) .arg(darkbg); Layer::toXml(stream, indent, extraAttributes + " " + s); } void SingleColourLayer::setProperties(const QXmlAttributes &attributes) { QString colourName = attributes.value("colourName"); QString colourSpec = attributes.value("colour"); QString darkbg = attributes.value("darkBackground"); int colour = ColourDatabase::getInstance()->putStringValues (colourName, colourSpec, darkbg); if (colour == -1) return; m_colourExplicitlySet = true; if (m_colour != colour) { #ifdef DEBUG_COLOUR_SELECTION SVDEBUG << "SingleColourLayer::setProperties: changing colour from " << m_colour << " to " << colour << endl; #endif unrefColor(); m_colour = colour; refColor(); flagBaseColourChanged(); } } void SingleColourLayer::refColor() { if (m_colourRefCount.find(m_colour) == m_colourRefCount.end()) { m_colourRefCount[m_colour] = 1; } else { m_colourRefCount[m_colour]++; } } void SingleColourLayer::unrefColor() { if (m_colourRefCount.find(m_colour) != m_colourRefCount.end() && m_colourRefCount[m_colour] > 0) { m_colourRefCount[m_colour]--; } }