view widgets/TipDialog.h @ 1534:bfd8b22fd67c

Fix #1904 Scrolling colour 3d plot does not always work when in View normalisation mode. We shouldn't imagine we've just invalidated the cache if the truth is that we've only just created the renderer

/* -*- 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.
*/

#ifndef SV_TIP_DIALOG_H
#define SV_TIP_DIALOG_H

#include <QDialog>
#include <QString>
#include <QXmlDefaultHandler>

#include <vector>

#include "base/Debug.h"

class QLabel;
class QXmlInputSource;

class TipDialog : public QDialog
{
    Q_OBJECT

public:
    TipDialog(QWidget *parent = 0);
    virtual ~TipDialog();

    bool isOK() { return !m_tips.empty(); }

protected slots:
    void previous();
    void next();

protected:
    int m_tipNumber;
    QLabel *m_label;
    QString m_caption;

    std::vector<QString> m_tips;

    void readTips();
    void showTip();

    class TipFileParser : public QXmlDefaultHandler
    {
    public:
        TipFileParser(TipDialog *dialog);
        virtual ~TipFileParser();
        
        void parse(QXmlInputSource &source);

        bool startElement(const QString &namespaceURI,
                                  const QString &localName,
                                  const QString &qName,
                                  const QXmlAttributes& atts) override;
        
        bool characters(const QString &) override;
        
        bool endElement(const QString &namespaceURI,
                                const QString &localName,
                                const QString &qName) override;
        
        bool error(const QXmlParseException &exception) override;
        bool fatalError(const QXmlParseException &exception) override;

    protected:
        TipDialog *m_dialog;

        bool m_inTip;
        bool m_inText;
        bool m_inHtml;
    };
};

#endif