annotate data/model/TextModel.h @ 384:6f6ab834449d spectrogram-cache-rejig

* Merge from trunk
author Chris Cannam
date Wed, 27 Feb 2008 11:59:42 +0000
parents 7a4bd2c8585c
children
rev   line source
Chris@147 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@147 2
Chris@147 3 /*
Chris@147 4 Sonic Visualiser
Chris@147 5 An audio file viewer and annotation editor.
Chris@147 6 Centre for Digital Music, Queen Mary, University of London.
Chris@147 7 This file copyright 2006 Chris Cannam.
Chris@147 8
Chris@147 9 This program is free software; you can redistribute it and/or
Chris@147 10 modify it under the terms of the GNU General Public License as
Chris@147 11 published by the Free Software Foundation; either version 2 of the
Chris@147 12 License, or (at your option) any later version. See the file
Chris@147 13 COPYING included with this distribution for more information.
Chris@147 14 */
Chris@147 15
Chris@147 16 #ifndef _TEXT_MODEL_H_
Chris@147 17 #define _TEXT_MODEL_H_
Chris@147 18
Chris@147 19 #include "SparseModel.h"
Chris@302 20 #include "base/XmlExportable.h"
Chris@147 21 #include "base/RealTime.h"
Chris@147 22
Chris@147 23 /**
Chris@147 24 * Text point type for use in a SparseModel. This represents a piece
Chris@147 25 * of text at a given time and y-value in the [0,1) range (indicative
Chris@147 26 * of height on the window). Intended for casual textual annotations.
Chris@147 27 */
Chris@147 28
Chris@302 29 struct TextPoint : public XmlExportable
Chris@147 30 {
Chris@147 31 public:
Chris@147 32 TextPoint(long _frame) : frame(_frame), height(0.0f) { }
Chris@147 33 TextPoint(long _frame, float _height, QString _label) :
Chris@147 34 frame(_frame), height(_height), label(_label) { }
Chris@147 35
Chris@147 36 int getDimensions() const { return 2; }
Chris@147 37
Chris@147 38 long frame;
Chris@147 39 float height;
Chris@147 40 QString label;
Chris@384 41
Chris@384 42 QString getLabel() const { return label; }
Chris@147 43
Chris@314 44 void toXml(QTextStream &stream, QString indent = "",
Chris@314 45 QString extraAttributes = "") const
Chris@147 46 {
Chris@314 47 stream << QString("%1<point frame=\"%2\" height=\"%3\" label=\"%4\" %5/>\n")
Chris@302 48 .arg(indent).arg(frame).arg(height)
Chris@302 49 .arg(encodeEntities(label)).arg(extraAttributes);
Chris@147 50 }
Chris@147 51
Chris@147 52 QString toDelimitedDataString(QString delimiter, size_t sampleRate) const
Chris@147 53 {
Chris@147 54 QStringList list;
Chris@147 55 list << RealTime::frame2RealTime(frame, sampleRate).toString().c_str();
Chris@147 56 list << QString("%1").arg(height);
Chris@318 57 if (label != "") list << label;
Chris@147 58 return list.join(delimiter);
Chris@147 59 }
Chris@147 60
Chris@147 61 struct Comparator {
Chris@147 62 bool operator()(const TextPoint &p1,
Chris@147 63 const TextPoint &p2) const {
Chris@147 64 if (p1.frame != p2.frame) return p1.frame < p2.frame;
Chris@147 65 if (p1.height != p2.height) return p1.height < p2.height;
Chris@147 66 return p1.label < p2.label;
Chris@147 67 }
Chris@147 68 };
Chris@147 69
Chris@147 70 struct OrderComparator {
Chris@147 71 bool operator()(const TextPoint &p1,
Chris@147 72 const TextPoint &p2) const {
Chris@147 73 return p1.frame < p2.frame;
Chris@147 74 }
Chris@147 75 };
Chris@147 76 };
Chris@147 77
Chris@147 78
Chris@147 79 // Make this a class rather than a typedef so it can be predeclared.
Chris@147 80
Chris@147 81 class TextModel : public SparseModel<TextPoint>
Chris@147 82 {
Chris@147 83 public:
Chris@147 84 TextModel(size_t sampleRate, size_t resolution, bool notifyOnAdd = true) :
Chris@147 85 SparseModel<TextPoint>(sampleRate, resolution, notifyOnAdd)
Chris@147 86 { }
Chris@147 87
Chris@288 88 virtual void toXml(QTextStream &out,
Chris@288 89 QString indent = "",
Chris@288 90 QString extraAttributes = "") const
Chris@147 91 {
Chris@288 92 SparseModel<TextPoint>::toXml
Chris@288 93 (out,
Chris@288 94 indent,
Chris@147 95 QString("%1 subtype=\"text\"")
Chris@147 96 .arg(extraAttributes));
Chris@147 97 }
Chris@384 98
Chris@384 99 QString getTypeName() const { return tr("Text"); }
Chris@147 100 };
Chris@147 101
Chris@147 102
Chris@147 103 #endif
Chris@147 104
Chris@147 105
Chris@147 106