Mercurial > hg > svgui
view layer/NoteLayer.h @ 1590:e660a00bc3b9
That didn't work well on a machine with a higher scaled-pixel ratio, try this
author | Chris Cannam |
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date | Fri, 03 Apr 2020 11:35:36 +0100 |
parents | e79731086b0f |
children |
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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 2006 Chris Cannam. 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_NOTE_LAYER_H #define SV_NOTE_LAYER_H #include "SingleColourLayer.h" #include "VerticalScaleLayer.h" #include "data/model/NoteModel.h" #include <QObject> #include <QColor> class View; class QPainter; /** * Layer for displaying and editing notes, i.e. discrete events with * start time, duration, value that represents pitch, and optionally a * level that represents velocity. * * For the purposes of public API, integration with other classes, and * display alignment, the y-coordinate (value) of the layer always has * a unit of Hz. The model itself may have another unit, such as MIDI * pitch, but the layer always converts to and from Hz behind the * scenes. */ class NoteLayer : public SingleColourLayer, public VerticalScaleLayer { Q_OBJECT public: NoteLayer(); void paint(LayerGeometryProvider *v, QPainter &paint, QRect rect) const override; int getVerticalScaleWidth(LayerGeometryProvider *v, bool, QPainter &) const override; void paintVerticalScale(LayerGeometryProvider *v, bool, QPainter &paint, QRect rect) const override; QString getFeatureDescription(LayerGeometryProvider *v, QPoint &) const override; bool snapToFeatureFrame(LayerGeometryProvider *v, sv_frame_t &frame, int &resolution, SnapType snap, int ycoord) const override; void drawStart(LayerGeometryProvider *v, QMouseEvent *) override; void drawDrag(LayerGeometryProvider *v, QMouseEvent *) override; void drawEnd(LayerGeometryProvider *v, QMouseEvent *) override; void eraseStart(LayerGeometryProvider *v, QMouseEvent *) override; void eraseDrag(LayerGeometryProvider *v, QMouseEvent *) override; void eraseEnd(LayerGeometryProvider *v, QMouseEvent *) override; void editStart(LayerGeometryProvider *v, QMouseEvent *) override; void editDrag(LayerGeometryProvider *v, QMouseEvent *) override; void editEnd(LayerGeometryProvider *v, QMouseEvent *) override; bool editOpen(LayerGeometryProvider *v, QMouseEvent *) override; void moveSelection(Selection s, sv_frame_t newStartFrame) override; void resizeSelection(Selection s, Selection newSize) override; void deleteSelection(Selection s) override; void copy(LayerGeometryProvider *v, Selection s, Clipboard &to) override; bool paste(LayerGeometryProvider *v, const Clipboard &from, sv_frame_t frameOffset, bool interactive) override; ModelId getModel() const override { return m_model; } void setModel(ModelId model); // a NoteModel PropertyList getProperties() const override; QString getPropertyLabel(const PropertyName &) const override; PropertyType getPropertyType(const PropertyName &) const override; QString getPropertyGroupName(const PropertyName &) const override; int getPropertyRangeAndValue(const PropertyName &, int *min, int *max, int *deflt) const override; QString getPropertyValueLabel(const PropertyName &, int value) const override; void setProperty(const PropertyName &, int value) override; enum VerticalScale { AutoAlignScale, LinearScale, LogScale, MIDIRangeScale }; void setVerticalScale(VerticalScale scale); VerticalScale getVerticalScale() const { return m_verticalScale; } bool isLayerScrollable(const LayerGeometryProvider *v) const override; bool isLayerEditable() const override { return true; } int getCompletion(LayerGeometryProvider *) const override; bool getValueExtents(double &min, double &max, bool &log, QString &unit) const override; bool getDisplayExtents(double &min, double &max) const override; bool setDisplayExtents(double min, double max) override; int getVerticalZoomSteps(int &defaultStep) const override; int getCurrentVerticalZoomStep() const override; void setVerticalZoomStep(int) override; RangeMapper *getNewVerticalZoomRangeMapper() const override; /** * Add a note-on. Used when recording MIDI "live". The note will * not be finally added to the layer until the corresponding * note-off. */ void addNoteOn(sv_frame_t frame, int pitch, int velocity); /** * Add a note-off. This will cause a note to appear, if and only * if there is a matching pending note-on. */ void addNoteOff(sv_frame_t frame, int pitch); /** * Abandon all pending note-on events. */ void abandonNoteOns(); void toXml(QTextStream &stream, QString indent = "", QString extraAttributes = "") const override; void setProperties(const QXmlAttributes &attributes) override; /// VerticalScaleLayer methods int getYForValue(LayerGeometryProvider *v, double value) const override; double getValueForY(LayerGeometryProvider *v, int y) const override; QString getScaleUnits() const override; protected: void getScaleExtents(LayerGeometryProvider *, double &min, double &max, bool &log) const; int getDefaultColourHint(bool dark, bool &impose) override; EventVector getLocalPoints(LayerGeometryProvider *v, int) const; bool getPointToDrag(LayerGeometryProvider *v, int x, int y, Event &) const; double convertValueFromEventValue(float eventValue) const; float convertValueToEventValue(double value) const; double valueOf(const Event &e) const; Event eventWithValue(const Event &e, double value) const; ModelId m_model; bool m_modelUsesHz; bool m_editing; int m_dragPointX; int m_dragPointY; int m_dragStartX; int m_dragStartY; Event m_originalPoint; Event m_editingPoint; ChangeEventsCommand *m_editingCommand; bool m_editIsOpen; VerticalScale m_verticalScale; typedef std::set<Event> NoteSet; NoteSet m_pendingNoteOns; mutable double m_scaleMinimum; mutable double m_scaleMaximum; bool shouldAutoAlign() const; void finish(ChangeEventsCommand *command) { Command *c = command->finish(); if (c) CommandHistory::getInstance()->addCommand(c, false); } }; #endif