comparison data/fileio/SVFileReader.h @ 148:1a42221a1522

* Reorganising code base. This revision will not compile.
author Chris Cannam
date Mon, 31 Jul 2006 11:49:58 +0000
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147:3a13b0d4934e 148:1a42221a1522
1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
2
3 /*
4 Sonic Visualiser
5 An audio file viewer and annotation editor.
6 Centre for Digital Music, Queen Mary, University of London.
7 This file copyright 2006 Chris Cannam.
8
9 This program is free software; you can redistribute it and/or
10 modify it under the terms of the GNU General Public License as
11 published by the Free Software Foundation; either version 2 of the
12 License, or (at your option) any later version. See the file
13 COPYING included with this distribution for more information.
14 */
15
16 #ifndef _SV_FILE_READER_H_
17 #define _SV_FILE_READER_H_
18
19 #include "layer/LayerFactory.h"
20 #include "transform/Transform.h"
21
22 #include <QXmlDefaultHandler>
23
24 #include <map>
25
26 class Pane;
27 class Model;
28 class Document;
29 class PlayParameters;
30
31 class SVFileReaderPaneCallback
32 {
33 public:
34 virtual Pane *addPane() = 0;
35 virtual void setWindowSize(int width, int height) = 0;
36 virtual void addSelection(int start, int end) = 0;
37 };
38
39 class SVFileReader : public QXmlDefaultHandler
40 {
41 public:
42 SVFileReader(Document *document,
43 SVFileReaderPaneCallback &callback);
44 virtual ~SVFileReader();
45
46 void parse(const QString &xmlData);
47 void parse(QXmlInputSource &source);
48
49 bool isOK();
50 QString getErrorString() const { return m_errorString; }
51
52 // For loading a single layer onto an existing pane
53 void setCurrentPane(Pane *pane) { m_currentPane = pane; }
54
55 virtual bool startElement(const QString &namespaceURI,
56 const QString &localName,
57 const QString &qName,
58 const QXmlAttributes& atts);
59
60 virtual bool characters(const QString &);
61
62 virtual bool endElement(const QString &namespaceURI,
63 const QString &localName,
64 const QString &qName);
65
66 bool error(const QXmlParseException &exception);
67 bool fatalError(const QXmlParseException &exception);
68
69 protected:
70 bool readWindow(const QXmlAttributes &);
71 bool readModel(const QXmlAttributes &);
72 bool readView(const QXmlAttributes &);
73 bool readLayer(const QXmlAttributes &);
74 bool readDatasetStart(const QXmlAttributes &);
75 bool addBinToDataset(const QXmlAttributes &);
76 bool addPointToDataset(const QXmlAttributes &);
77 bool addRowToDataset(const QXmlAttributes &);
78 bool readRowData(const QString &);
79 bool readDerivation(const QXmlAttributes &);
80 bool readPlayParameters(const QXmlAttributes &);
81 bool readPlugin(const QXmlAttributes &);
82 bool readSelection(const QXmlAttributes &);
83 void addUnaddedModels();
84
85 Document *m_document;
86 SVFileReaderPaneCallback &m_paneCallback;
87 Pane *m_currentPane;
88 std::map<int, Layer *> m_layers;
89 std::map<int, Model *> m_models;
90 std::set<Model *> m_addedModels;
91 std::map<int, int> m_awaitingDatasets; // map dataset id -> model id
92 Model *m_currentDataset;
93 Model *m_currentDerivedModel;
94 PlayParameters *m_currentPlayParameters;
95 QString m_currentTransform;
96 int m_currentTransformChannel;
97 QString m_currentTransformConfiguration;
98 QString m_datasetSeparator;
99 bool m_inRow;
100 bool m_inView;
101 bool m_inData;
102 bool m_inSelections;
103 int m_rowNumber;
104 QString m_errorString;
105 bool m_ok;
106 };
107
108 #endif