MuseScore/libmscore/lyrics.h

194 lines
7.8 KiB
C++

//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2002-2011 Werner Schweer
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#ifndef __LYRICS_H__
#define __LYRICS_H__
#include "line.h"
#include "text.h"
// uncomment the following line to use the actual metrics of
// the font used by each lyrics rather than conventional values
//
// NOTE: CURRENTLY DOES NOT WORK (Font::tightBoundingBox() returns unusable values for glyphs not on base line)
//
//#define USE_FONT_DASH_METRIC
#if defined(USE_FONT_DASH_METRIC)
// the following line is used to turn the single font dash thickness value on or off
// when the other font dash parameters are on;
// the rationale is that the dash thickness is the most unreliable of the dash parameters
// retrievable from font metrics and it may make sense to use the other values but ignore this one.
// #define USE_FONT_DASH_TICKNESS
#endif
namespace Ms {
//---------------------------------------------------------
// @@ Lyrics
// @P syllabic enum (Lyrics.SINGLE, Lyrics.BEGIN, Lyrics.END, Lyrics.MIDDLE)
//---------------------------------------------------------
class LyricsLine;
class Lyrics : public Text {
Q_OBJECT
Q_PROPERTY(Ms::Lyrics::Syllabic syllabic READ syllabic WRITE setSyllabic)
Q_ENUMS(Syllabic)
public:
enum class Syllabic : char { SINGLE, BEGIN, END, MIDDLE };
// MELISMA FIRST UNDERSCORE:
// used as_ticks value to mark a melisma for which only the first chord has been spanned so far
// and to give the user a visible feedback that the undercore has been actually entered;
// it should be cleared to 0 at some point, so that it will not be carried over
// if the melisma is not extended beyond a single chord, but no suitable place to do this
// has been identified yet.
static const int TEMP_MELISMA_TICKS = 1;
// metrics for dashes and melisma; all in sp. units:
static constexpr qreal MELISMA_DEFAULT_PAD = 0.10; // the empty space before a melisma line
static constexpr qreal LYRICS_DASH_DEFAULT_PAD = 0.05; // the min. empty space before and after a dash
// WORD_MIN_DISTANCE has never been implemented
// static constexpr qreal LYRICS_WORD_MIN_DISTANCE = 0.33; // min. distance between lyrics from different words
// These values are used when USE_FONT_DASH_METRIC is not defined
#if !defined(USE_FONT_DASH_METRIC)
static constexpr qreal LYRICS_DASH_DEFAULT_LINE_THICKNESS = 0.15; // in sp. units
static constexpr qreal LYRICS_DASH_Y_POS_RATIO = 0.67; // the fraction of lyrics font x-height to
// raise the dashes above text base line;
#endif
private:
int _ticks; ///< if > 0 then draw an underline to tick() + _ticks
///< (melisma)
Syllabic _syllabic;
LyricsLine* _separator;
PropertyStyle placementStyle;
protected:
int _no; ///< row index
#if defined(USE_FONT_DASH_METRIC)
qreal _dashY; // dash dimensions for lyrics line dashes
qreal _dashLength;
#if defined (USE_FONT_DASH_TICKNESS)
qreal _dashThickness;
#endif
#endif
public:
Lyrics(Score* = 0);
Lyrics(const Lyrics&);
~Lyrics();
virtual Lyrics* clone() const override { return new Lyrics(*this); }
virtual Element::Type type() const override { return Element::Type::LYRICS; }
virtual void scanElements(void* data, void (*func)(void*, Element*), bool all=true) override;
virtual bool acceptDrop(const DropData&) const override;
virtual Element* drop(const DropData&) override;
Segment* segment() const { return (Segment*)parent()->parent(); }
Measure* measure() const { return (Measure*)parent()->parent()->parent(); }
ChordRest* chordRest() const { return (ChordRest*)parent(); }
virtual void layout() override;
virtual void layout1() override;
virtual void write(Xml& xml) const override;
virtual void read(XmlReader&) override;
virtual int subtype() const override { return _no; }
virtual QString subtypeName() const override { return tr("Verse %1").arg(_no + 1); }
void setNo(int n);
int no() const { return _no; }
void setSyllabic(Syllabic s) { _syllabic = s; }
Syllabic syllabic() const { return _syllabic; }
virtual void add(Element*) override;
virtual void remove(Element*) override;
virtual void endEdit() override;
int ticks() const { return _ticks; }
void setTicks(int tick) { _ticks = tick; }
int endTick() const;
bool isMelisma() const;
void removeFromScore();
#if defined(USE_FONT_DASH_METRIC)
qreal dashLength() const { return _dashLength; }
qreal dashY() const { return _dashY; }
#if defined (USE_FONT_DASH_TICKNESS)
qreal dashThickness() const { return _dashThickness; }
#endif
#endif
using Text::paste;
void paste(MuseScoreView * scoreview);
virtual QVariant getProperty(P_ID propertyId) const override;
virtual bool setProperty(P_ID propertyId, const QVariant&) override;
virtual QVariant propertyDefault(P_ID id) const override;
virtual PropertyStyle propertyStyle(P_ID) const override;
virtual StyleIdx getPropertyStyle(P_ID) const override;
virtual void reset() override;
virtual void styleChanged() override;
virtual void resetProperty(P_ID id) override;
};
//---------------------------------------------------------
// LyricsLine
//---------------------------------------------------------
class LyricsLine : public SLine {
Q_OBJECT
protected:
Lyrics* _nextLyrics;
public:
LyricsLine(Score* s);
LyricsLine(const LyricsLine&);
virtual LyricsLine* clone() const override { return new LyricsLine(*this); }
virtual Element::Type type() const override { return Element::Type::LYRICSLINE; }
virtual void layout() override;
virtual LineSegment* createLineSegment() override;
virtual void removeUnmanaged() override;
Lyrics* lyrics() const { return (Lyrics*)parent(); }
Lyrics* nextLyrics() const { return _nextLyrics; }
virtual bool setProperty(P_ID propertyId, const QVariant& v) override;
};
//---------------------------------------------------------
// LyricsLineSegment
//---------------------------------------------------------
class LyricsLineSegment : public LineSegment {
Q_OBJECT
protected:
int _numOfDashes;
qreal _dashLength;
public:
LyricsLineSegment(Score* s);
virtual LyricsLineSegment* clone() const override { return new LyricsLineSegment(*this); }
virtual Element::Type type() const override { return Element::Type::LYRICSLINE_SEGMENT; }
virtual void draw(QPainter*) const override;
virtual void layout() override;
LyricsLine* lyricsLine() const { return (LyricsLine*)spanner(); }
};
} // namespace Ms
Q_DECLARE_METATYPE(Ms::Lyrics::Syllabic);
#endif