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#! /usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Copyright 2017, Nils Hilbricht, Germany ( https://www.hilbricht.net )
This file is part of Laborejo ( https://www.laborejo.org )
Laborejo 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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
from PyQt5 import QtCore, QtGui, QtSvg, QtWidgets
from itertools import groupby
from engine.items import Chord, KeySignature
from .constantsAndConfigs import constantsAndConfigs
from template.qtgui.helper import stretchRect
import engine.api as api
"""All svg items (execept pitch-related) graphics are expected to be
already on the correct position and will be inserter ON the middle line
That means g-clef needs to be 14 pxiels below the y=0 coordinate since
these are two stafflines. Or in other words: Open the graphic and
scale and reposition it until it fits correctly when inserted with
setPos(0,0)"""
#Atomic items:
oneRectToReturnThemAll = QtCore.QRectF(0,0,0,0) #prevent the annoying "NotImplementError" from Qt for boundingRect. For items that don't need any collision detection.
class GuiTieCurveGraphicsItem(QtWidgets.QGraphicsPathItem):
pen = QtGui.QPen()
pen.setCapStyle(QtCore.Qt.RoundCap)
pen.setWidth(2)
def __init__(self, noteExportObject):
"""The origin of this item is the scene position.
We create a curve by drawing a straight line from zero
to end (the local item and the receiving tie item) and then
bend it down in the middle, leaving one of the control points
empty (0,0)."""
super().__init__()
self.setPen(GuiTieCurveGraphicsItem.pen)
if noteExportObject["dotOnLine"] < 0: #higher than the middle line
#self.translate(6, -5)
pass
else:
if noteExportObject["notehead"] <= 1: #whole notes have a bug in the gui because the backend stem info is misleading. Works fine except for ties.
pass #TODO
#self.translate(6, 0)
else:
pass #TODO
#self.translate(6, 6)
self.noteExportObject = noteExportObject
self.draw()
def draw(self):
lengthInPixel = self.noteExportObject["tieDistanceInTicks"] / constantsAndConfigs.ticksToPixelRatio
path = QtGui.QPainterPath()
path.cubicTo(0, 0, lengthInPixel/2, constantsAndConfigs.stafflineGap, lengthInPixel, 0) # ctrlPt1x, ctrlPt1y, ctrlPt2x, ctrlPt2y, endPtx, endPty
self.setPath(path) #set path edits the old one in place
def stretchXCoordinates(self, factor):
"""Called directly by the track by iterating through instances"""
self.draw()
class GuiPositionMarker(QtWidgets.QGraphicsRectItem):
def __init__(self, height, position = 1):
"""A simple position marker that connects an annotation above a staff with the staff.
Height and position are calculated in stafflines/gaps"""
super().__init__(-2, position*constantsAndConfigs.stafflineGap, 1, height * constantsAndConfigs.stafflineGap) #x,y, w, h
self.setBrush(QtCore.Qt.black)
class GuiTupletNumber(QtWidgets.QGraphicsItem):
"""The baseline is the scene Position.
We position in the up direction"""
pen = QtGui.QPen()
pen.setColor(QtGui.QColor("darkGrey"))
pen.setWidth(1)
def paint(self, *args):
pass
def boundingRect(self, *args):
return oneRectToReturnThemAll
def __init__(self, upper, lower):
super().__init__()
#self.upper = QtWidgets.QGraphicsSimpleTextItem(str(upper))
#self.divider = QtWidgets.QGraphicsLineItem(0,0,10,0)
#self.divider.rotate(-70)
#self.divider.setPen(GuiTupletNumber.pen)
self.lower = QtWidgets.QGraphicsSimpleTextItem(str(lower))
#self.upper.setParentItem(self)
#self.divider.setParentItem(self)
self.lower.setParentItem(self)
#self.upper.setPos(-1,-8)
#self.divider.setPos(5,5)
#self.lower.setPos(7,-5)
self.lower.setPos(-1,-4)
self.setScale(0.75)
class GuiItem(QtWidgets.QGraphicsItem):
"""A blank item. Subclass to implement your own"""
def __init__(self, staticItem):
super().__init__()
self.staticItem = staticItem
dur = self.staticItem["completeDuration"]
exceptions = ["BlockEndMarker"]
#Deactivated after stretchX was reimplemented properly as recursive function and not a catch all on all items. I don't think that was used anywhere else. #self.rectangles = [] #Prevents typechecking. only implemented in GuiChord
self.pixelPosition = self.staticItem["tickindex"] / constantsAndConfigs.ticksToPixelRatio
self.pixelWidth = self.staticItem["completeDuration"] / constantsAndConfigs.ticksToPixelRatio
#if dur or self.staticItem["type"] in exceptions:
# self.pixelPosition = self.staticItem["tickindex"] / constantsAndConfigs.ticksToPixelRatio
# self.pixelWidth = self.staticItem["completeDuration"] / constantsAndConfigs.ticksToPixelRatio
#else:
# self.pixelPosition = self.staticItem["tickindex"] / constantsAndConfigs.ticksToPixelRatio + constantsAndConfigs.negativeMagicPixel*6 #an offset to the left. this will still get in the way for short notes, but for now it is better than colliding 100% when placed on the note. #TODO: place above the track
# self.pixelWidth = 25 #Does not need to be the actual size because this is ONLY important when the item gets inserted at the appending position and the cursor needs to jump "over" the current item, because there is no next one. This is the direct response to the cursor method that sets the appending position as items tickposition+pixelwidth.
def updateVisibility(self):
"""Prevent against typechecking. This method is only implemented
in GuiChord"""
pass
def paint(self, *args):
pass
def boundingRect(self, *args):
return oneRectToReturnThemAll
def stretchXCoordinates(self, factor):
"""Reposition the items on the X axis.
Call goes through all parents/children, starting from ScoreView._stretchXCoordinates.
Docstring there."""
pass
class GuiRectangleNotehead(QtWidgets.QGraphicsRectItem):
"""Displays the pitch and actual duration of one note when in rectangle view mode"""
def __init__(self, parent, noteExportObject):
#Dimensions and Position
x = noteExportObject["leftModInTicks"] / constantsAndConfigs.ticksToPixelRatio
y = -1 * constantsAndConfigs.stafflineGap / 2 + 1
w = (noteExportObject["rightModInTicks"] + noteExportObject["completeDuration"] - noteExportObject["leftModInTicks"]) / constantsAndConfigs.ticksToPixelRatio
h = constantsAndConfigs.stafflineGap #- 2 #2 pixel to make room for the pen-width.
super().__init__(x, y, w, h)
self.setPos(0, constantsAndConfigs.stafflineGap * noteExportObject["dotOnLine"] / 2)
self.setParentItem(parent)
#Prepare self.shape()
#NOTE: this was from a time when mouse modification was possible. Leave for later use.
#self.path = QtGui.QPainterPath()
#self.pathRect = QtCore.QRectF(x, y-1, w, h+4) #this is directly related to inits parameter x, y, w, h
#self.path.addRect(self.pathRect)
#self.setCursor(QtCore.Qt.SizeHorCursor)
#Different color when the duration was modified by the user
inactive = "green" if noteExportObject["manualOverride"] else "black"
self.inactiveColor = QtGui.QColor(inactive)
self.setBrush(self.inactiveColor)
#Pen for the borders
pen = QtGui.QPen()
pen.setWidth(0)
pen.setColor(QtGui.QColor("darkGrey"))
self.setPen(pen)
#Since accidentals are part of the notehead we need one here. It doesn't matter if the traditional notehead already has one
if noteExportObject["accidental"]: #0 means no difference to keysig
self.accidental = GuiNote.createAccidentalGraphicsItem(self, noteExportObject["accidental"])
self.accidental.setPos(0, 0) #not analogue to the notehead acciental position because here we choose the rectangle as parent
self.accidental.setParentItem(self)
#NOTE: this was from a time when mouse modification was possible. Leave for later use.
#def shape(self):
# """Qt Function
# Return a more accurate shape for this item so that
# mouse hovering is more accurate.
#
# Must be within the bounding rect."""
# return self.path
#def boundingRect(self, *args):
# """Keep in syn with self.shape()"""
# return self.pathRect
#def paint(self, *args):
#Do NOT implement this. This actually works already. The parent item needs this.
class GuiRectangleVelocity(QtWidgets.QGraphicsRectItem):
"""Displays the velocity of one note when in rectangle view mode.
The Y-position is fixed on the staff and not bound to the rectangle notehead.
This makes it possible for the user to compare velocities visually.
"""
def __init__(self, parent, noteExportObject):
#Dimensions and Position
x = noteExportObject["leftModInTicks"] / constantsAndConfigs.ticksToPixelRatio #same as GuiRectangleNotehead
y = -1 * (noteExportObject["velocity"] / constantsAndConfigs.velocityToPixelRatio)
w = (noteExportObject["rightModInTicks"] + noteExportObject["completeDuration"] - noteExportObject["leftModInTicks"]) / constantsAndConfigs.ticksToPixelRatio #same as GuiRectangleNotehead
h = noteExportObject["velocity"] / constantsAndConfigs.velocityToPixelRatio #velocityToPixelRation has its own compress factor since values can go from 0 to 127
super().__init__(x, y, w, h)
self.setPos(0, 2*constantsAndConfigs.stafflineGap) #The position is fixed to the staff, not to the GuiRectangleNotehead.
self.setParentItem(parent)
#Prepare self.shape()
#NOTE: this was from a time when mouse modification was possible. Leave for later use.
#self.path = QtGui.QPainterPath()
#self.pathRect = QtCore.QRectF(x, y-1, w, h+4) #this is directly related to inits parameter x, y, w, h
#self.path.addRect(self.pathRect)
#self.setCursor(QtCore.Qt.SizeHorCursor)
#Colors and Apperance
inactive = "green" if noteExportObject["velocityManualOverride"] else "lightGray"
self.inactiveVelocityColor = QtGui.QColor(inactive)
self.activeVelocityColor = QtGui.QColor("darkCyan")
self.setBrush(self.inactiveVelocityColor)
self.setOpacity(0.3)
#Pen for the borders
#The pen interferes with the precise appearance we want for live notes
pen = QtGui.QPen()
pen.setCapStyle(QtCore.Qt.RoundCap)
pen.setJoinStyle(QtCore.Qt.RoundJoin)
pen.setWidth(2)
pen.setColor(QtGui.QColor("black"))
self.setPen(pen)
#Attach a label that displays the velocity as midi value 0-127
#label = QtWidgets.QGraphicsSimpleTextItem(str(noteExportObject["velocity"]))
#label.setPos(3, -3)
#label.setParentItem(parent)
#Misc Qt Flags
self.setAcceptHoverEvents(False) #Make this explicit so it will be remembered that the gui rectangle velocity is a display only.
#NOTE: this was from a time when mouse modification was possible. Leave for later use.
#def shape(self):
# """Qt Function
# Return a more accurate shape for this item so that
# mouse hovering is more accurate.
#
# Must be within the bounding rect."""
# return self.path
#def boundingRect(self, *args):
# """Keep in syn with self.shape()"""
# return self.pathRect
#def paint(self, *args):
#Do NOT implement this. This actually works already. The parent item needs this.
class GuiRectangle(QtWidgets.QGraphicsItem):
"""An alternative notehead, used to change velocity and duration
finetuning.
This is a GraphicsItem with two main components:
The notehead which displays the duration and pitch of the note
The Velocity which displays only the velocity.
Both components share their Y position in the staff so they are one item.
The notehead rectangles have full opacity and can't layer.
The velocity rectangles layer and only a grahpical highlight shows the active one.
"""
def __init__(self, noteExportObject):
super().__init__()
self.notehead = GuiRectangleNotehead(parent = self, noteExportObject = noteExportObject)
self.velocity = GuiRectangleVelocity(parent = self, noteExportObject = noteExportObject)
self.notehead.setZValue(10) #within GuiRectangle
def boundingRect(self, *args):
return oneRectToReturnThemAll
def paint(self, *args):
pass
class GuiNote(QtWidgets.QGraphicsItem):
def __init__(self, noteExportObject, directionRightAndUpwards):
super(GuiNote, self).__init__()
self.createNote(noteExportObject, directionRightAndUpwards)
def paint(self, *args):
pass
def boundingRect(self, *args):
return oneRectToReturnThemAll
def createNote(self, noteExportObject, directionRightAndUpwards):
#note head
self.noteExportObject = noteExportObject
#self.noteHead = GuiNote.noteheads[noteExportObject["notehead"]]()
self.noteHead = self.createNoteheadGraphicsItem(noteExportObject["notehead"])
self.noteHead.setPos(0, constantsAndConfigs.stafflineGap * noteExportObject["dotOnLine"] / 2)
self.noteHead.setParentItem(self)
#Ledger lines need to be done in the chord to not be redundant and work for multiple notes.
if noteExportObject["accidental"]: #0 means no difference to keysig
self.accidental = self.createAccidentalGraphicsItem(noteExportObject["accidental"])
self.accidental.setPos(0, constantsAndConfigs.stafflineGap * noteExportObject["dotOnLine"] / 2)
self.accidental.setParentItem(self)
for dot in range(noteExportObject["dots"]):
d = QtSvg.QGraphicsSvgItem(":svg/dot.svg")
d.setPos((dot+1)*4+6, constantsAndConfigs.stafflineGap * noteExportObject["dotOnLine"] / 2)
d.setParentItem(self)
for i, (upper, lower) in enumerate(noteExportObject["tuplets"]):
tuplet = GuiTupletNumber(upper, lower)
if directionRightAndUpwards:
tuplet.setPos(3, -6*(i+1))
else:
tuplet.setPos(3, 6*(i+1))
tuplet.setParentItem(self.noteHead)
if noteExportObject["durationKeyword"]:
self.durationKeywordGlyph = GuiNote.durationKeywords[noteExportObject["durationKeyword"]](noteExportObject)
if directionRightAndUpwards:
self.durationKeywordGlyph.setPos(3, 6)
else:
self.durationKeywordGlyph.setPos(3, -6)
self.durationKeywordGlyph.setParentItem(self.noteHead)
def createNoteheadGraphicsItem(self, number):
item = QtSvg.QGraphicsSvgItem()
item.setSharedRenderer(GuiNote.noteheads[number])
return item
def createAccidentalGraphicsItem(self, number):
item = QtSvg.QGraphicsSvgItem()
item.setSharedRenderer(GuiNote.accidentals[number])
return item
durationKeywords = { #0 is default and has no markers.
api.D_STACCATO : lambda noteExportObject: QtSvg.QGraphicsSvgItem(":svg/scriptsStaccato.svg"),
api.D_TENUTO : lambda noteExportObject: QtWidgets.QGraphicsSimpleTextItem("-"), #TODO: tenuto glyph
api.D_TIE : lambda noteExportObject: GuiTieCurveGraphicsItem(noteExportObject),
}
noteheads = {
4 : QtSvg.QSvgRenderer(":svg/noteheadsBlack.svg"), #and 8, 16, 32, ...
2 : QtSvg.QSvgRenderer(":svg/noteheadsHalf.svg"),
1 : QtSvg.QSvgRenderer(":svg/noteheadsWhole.svg"),
0 : QtSvg.QSvgRenderer(":svg/noteheadsBrevis.svg"),
-1 : QtSvg.QSvgRenderer(":svg/noteheadsLonga.svg"),
-2 : QtSvg.QSvgRenderer(":svg/noteheadsMaxima.svg"),
}
#Accidental .svg are shifted to the left a bit already so we can place them on the same x-coordinates as the notes.
accidentals = {
1 : QtSvg.QSvgRenderer(":svg/accidentalsNatural.svg"),
10 : QtSvg.QSvgRenderer(":svg/accidentalsSharp.svg"),
20 : QtSvg.QSvgRenderer(":svg/accidentalsDoublesharp.svg"),
-10 : QtSvg.QSvgRenderer(":svg/accidentalsFlat.svg"),
-20 : QtSvg.QSvgRenderer(":svg/accidentalsFlatFlat.svg"),
}
def stretchXCoordinates(self, factor):
"""Reposition the items on the X axis.
Call goes through all parents/children, starting from ScoreView._stretchXCoordinates.
Docstring there."""
try:
self.durationKeywordGlyph.stretchXCoordinates(factor)
except AttributeError: #does not have any attachements or the attachment does not have the stretch function (e.g. staccato)
pass
#Top level items, all based on GuiItem.
class GuiChord(GuiItem):
"""staticItem is a chord Dict which has another list of dicts:
staticItem["notelist"].
Each note with its notehead, accidental etc is in there.
This means that a chord can consist of multiple durations as well
as pitches, of course.
For spacing calculations the chord itself gives us a duration as
well."""
def __init__(self, staticItem,):
super().__init__(staticItem)
self.staticItem = staticItem
self.rectangles = []
self.notes = []
self.stem = None #stored for rectangle/head switching
self.flag = None #stored for rectangle/head switching
self.beamGroupGlyph = None #stored for rectangle/head switching
#The actual beams are in the track
self.createRectanglesFromData()
self.createNotesFromData()
self.createGenericFromData()
self.updateVisibility()
ledgerPen = QtGui.QPen(QtCore.Qt.SolidLine)
ledgerPen.setCapStyle(QtCore.Qt.RoundCap)
ledgerPen.setWidth(1)
stemPen = QtGui.QPen(QtCore.Qt.SolidLine)
stemPen.setCapStyle(QtCore.Qt.RoundCap)
stemPen.setWidth(1.5)
flags = { #QGraphicsItems can only be used once so we have to save a class constructor here instead of an instance.
1024 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag1024.svg"), #TODO
512 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag512.svg"), #TODO
256 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag256.svg"),
128 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag128.svg"),
64 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag64.svg"),
32 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag32.svg"),
16 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag16.svg"),
8 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag8.svg"),
-1024 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag1024i.svg"), #TODO
-512 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag512i.svg"), #TODO
-256 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag256i.svg"),
-128 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag128i.svg"),
-64 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag64i.svg"),
-32 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag32i.svg"),
-16 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag16i.svg"),
-8 : lambda: QtSvg.QGraphicsSvgItem(":svg/flag8i.svg"),
}
def createGenericFromData(self):
"""Graphics for both rectangles and noteheads"""
#Ledger Lines
below, above = self.staticItem["ledgerLines"]
for i in range(below):
line = QtWidgets.QGraphicsLineItem(QtCore.QLineF(0, 0, 12, 0))
line.setPen(GuiChord.ledgerPen)
line.setParentItem(self)
line.setPos(constantsAndConfigs.negativeMagicPixel, i * constantsAndConfigs.stafflineGap + constantsAndConfigs.stafflineGap*3)
for i in range(above):
line = QtWidgets.QGraphicsLineItem(QtCore.QLineF(0, 0, 12, 0))
line.setPen(GuiChord.ledgerPen)
line.setParentItem(self)
line.setPos(constantsAndConfigs.negativeMagicPixel, -1 * i * constantsAndConfigs.stafflineGap - constantsAndConfigs.stafflineGap*3)
#Display relative channel changes
if not self.staticItem["midiChannelOffset"] == 0:
channelGlyph = QtWidgets.QGraphicsSimpleTextItem("ch{0:+}".format(self.staticItem["midiChannelOffset"]))
channelGlyph.setScale(0.75)
channelGlyph.setParentItem(self)
channelGlyph.setPos(0, -5*constantsAndConfigs.stafflineGap)
def createRectanglesFromData(self):
"""Graphics only for rectangles"""
for noteExportObject in self.staticItem["notelist"]:
if not noteExportObject["tie"] == "notFirst":
#Tied notes, except the first, do not produce rectangles because the first note gets an extra large rectangle.
rectangle = GuiRectangle(noteExportObject)
self.rectangles.append(rectangle)
rectangle.setParentItem(self)
def createNotesFromData(self):
"""Graphics only for noteheads"""
if self.staticItem["beam"]:
stemOrBeam = self.staticItem["beam"]
else:
stemOrBeam = self.staticItem["stem"]
if stemOrBeam and stemOrBeam[2] > 0:
self.directionRightAndUpwards = False
else:
self.directionRightAndUpwards = True
#Stem - Both for groups and standalone.
if stemOrBeam: #may be an empty tuple for whole notes and brevis
line = QtWidgets.QGraphicsLineItem(QtCore.QLineF(0, constantsAndConfigs.stafflineGap * stemOrBeam[1]/2, 0, 0)) #x1, y1, x2, y2
line.setPen(GuiChord.stemPen)
self.stem = line #store as persistent item. Otherwise qt will delete it.
line.setParentItem(self)
line.setPos(constantsAndConfigs.magicPixel + stemOrBeam[2]*3, constantsAndConfigs.stafflineGap * stemOrBeam[0] / 2) #stem[2] is left/-1 or right/1 shifting. #4 is the middle
#Flags
if not self.staticItem["beam"] and self.staticItem["flag"]:
assert self.stem
flag = GuiChord.flags[self.staticItem["flag"]]() #the graphic.
flag.setParentItem(self)
self.flag = flag #store as persistent item. Otherwise qt will delete it.
flag.setPos(self.stem.pos().x(), self.stem.line().p1().y() + self.stem.pos().y()) #we already know where the stem-line is.
#Check if this item is the start or end of a beam group and mark it with lilypond syntax
if self.staticItem["beamGroup"]:
if self.staticItem["beamGroup"] == "open":
beamGroupGlyph = QtWidgets.QGraphicsSimpleTextItem("[")
beamGroupGlyph.setParentItem(self)
beamGroupGlyph.setPos(0, -5*constantsAndConfigs.stafflineGap)
elif self.staticItem["beamGroup"] == "close":
beamGroupGlyph = QtWidgets.QGraphicsSimpleTextItem("]")
beamGroupGlyph.setParentItem(self)
beamGroupGlyph.setPos(constantsAndConfigs.magicPixel, -5*constantsAndConfigs.stafflineGap)
self.beamGroupGlyph = beamGroupGlyph
#Actual Noteheads
lastDotOnLine = float("inf")
for noteExportObject in self.staticItem["notelist"]:
#notes in a chord come in the order highest to lowest
#determine if we have two neighbouring noteheads. If yes we shift one of the heads to the right
assert lastDotOnLine > noteExportObject["dotOnLine"]
if lastDotOnLine - noteExportObject["dotOnLine"] == 1:
moveThisNoteheadToTheRight = True
lastDotOnLine = noteExportObject["dotOnLine"]
lastDotOnLine += 1 #we shift the current notehead. The next pair would be no problem, even if neighbours.
else:
moveThisNoteheadToTheRight = False
lastDotOnLine = noteExportObject["dotOnLine"]
note = GuiNote(noteExportObject, self.directionRightAndUpwards)
self.notes.append(note) #we need them later for switching between rectangles and noteheads
note.setParentItem(self)
if moveThisNoteheadToTheRight:
note.setX(note.pos().x() + 6) #6 pixels.
def stretchXCoordinates(self, factor):
"""Reposition the items on the X axis.
Call goes through all parents/children, starting from ScoreView._stretchXCoordinates.
Docstring there."""
for rectNote in self.rectangles:
stretchRect(rectNote.notehead, factor)
stretchRect(rectNote.velocity, factor)
for note in self.notes: #this is for ties only at the moment, the rest does not stretch
note.stretchXCoordinates(factor)
def updateVisibility(self):
"""decide during creation what part is visible at the moment. aka. are we in notehead
or rectangle mode.
Beams visibility is done in the track function createBeams"""
if constantsAndConfigs.noteHeadMode:
for r in self.rectangles:
r.hide()
for n in self.notes:
n.show()
if self.flag:
self.flag.show()
if self.stem:
self.stem.show()
if self.beamGroupGlyph:
#This is about the start and end marker [ ] .The beam itself is in the track
self.beamGroupGlyph.show()
else: #rectangle mode.
for r in self.rectangles:
r.show()
for n in self.notes:
n.hide()
if self.flag:
self.flag.hide()
if self.stem:
self.stem.hide()
if self.beamGroupGlyph:
#This is about the start and end marker [ ] .The beam itself is in the track
self.beamGroupGlyph.hide()
class GuiLiveNote(QtWidgets.QGraphicsRectItem):
"""A pure rectangle note, meant for live recording."""
#TODO: Velocity indicator?
instances = []
def __init__(self, parent, liveNoteData):
self.__class__.instances.append(self)
self.liveNoteData = liveNoteData
#Dimensions and Position
x = 0 #A live note is always literally where it sounds
y = -1 * constantsAndConfigs.stafflineGap / 2
w = liveNoteData["duration"] / constantsAndConfigs.ticksToPixelRatio
h = constantsAndConfigs.stafflineGap
super().__init__(x, y, w, h)
self.setY(constantsAndConfigs.stafflineGap * liveNoteData["dotOnLine"] / 2)
self.setParentItem(parent)
self.setBrush(QtGui.QColor("red"))
#Pen for the borders
pen = QtGui.QPen()
pen.setWidth(0)
self.setPen(pen)
if liveNoteData["accidental"]: #0 means no difference to keysig
self.accidental = GuiNote.createAccidentalGraphicsItem(self, liveNoteData["accidental"])
self.accidental.setPos(0, 0) #not analogue to the notehead acciental position because here we choose the rectangle as parent
self.accidental.setParentItem(self)
def update(self, duration):
r = self.rect()
r.setRight(duration / constantsAndConfigs.ticksToPixelRatio)
self.setRect(r)
class GuiRest(GuiItem):
def __init__(self, staticItem):
super(GuiRest, self).__init__(staticItem)
self.createGraphicItemsFromData()
rests = { #QGraphicsItems can only be used once so we have to save a class constructor here instead of an instance.
-1 : lambda: QtSvg.QGraphicsSvgItem(":svg/restLonga.svg"),
-2 : lambda: QtSvg.QGraphicsSvgItem(":svg/restMaxima.svg"),
0 : lambda: QtSvg.QGraphicsSvgItem(":svg/restBrevis.svg"),
1 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest1.svg"),
2 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest2.svg"),
4 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest4.svg"),
8 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest8.svg"),
16 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest16.svg"),
32 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest32.svg"),
64 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest64.svg"),
128 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest128.svg"),
256 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest256.svg"), #TODO
512 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest512.svg"), #TODO
1024 : lambda: QtSvg.QGraphicsSvgItem(":svg/rest1024.svg"), #TODO
}
def createGraphicItemsFromData(self):
self.glyph = GuiRest.rests[self.staticItem["rest"]]()
self.glyph.setParentItem(self)
for dot in range(self.staticItem["dots"]):
d = QtSvg.QGraphicsSvgItem(":svg/dot.svg")
d.setPos((dot+1)*4+6, -2)
d.setParentItem(self)
for i, (upper, lower) in enumerate(self.staticItem["tuplets"]):
tuplet = GuiTupletNumber(upper, lower)
tuplet.setParentItem(self)
tuplet.setPos(2, (i+1)*-4-constantsAndConfigs.stafflineGap*2)
class GuiKeySignature(GuiItem):
def __init__(self, staticItem):
super(GuiKeySignature, self).__init__(staticItem)
self.createGraphicItemsFromData()
def createGraphicItemsFromData(self):
"""staticItems accidentalsOnLines is ordered. We receive the
correct accidental order from left to right and only need
to place the gaps"""
for i, (accidentalOnLine, pitchMod) in enumerate(self.staticItem["accidentalsOnLines"]):
glyph = GuiKeySignature.accidentals[pitchMod]()
glyph.setParentItem(self)
glyph.setPos(constantsAndConfigs.magicPixel + i*1.5*constantsAndConfigs.magicPixel, constantsAndConfigs.stafflineGap * accidentalOnLine / 2) #These accidental graphics are shifted to the left in the .svg so they can be placed just as noteheads and match automatically. So we set them +x here.
if not self.staticItem["accidentalsOnLines"]:
#No accidentals in the keysig (C-Major, D-Dorian etc.) gets a big natural sign.
self.bigNatural = GuiKeySignature.accidentals[0]() #"big natural"... hö hö hö hö
self.bigNatural.setParentItem(self)
self.bigNatural.setPos(constantsAndConfigs.magicPixel, constantsAndConfigs.stafflineGap * -1)
self.rootGlyph = QtWidgets.QGraphicsSimpleTextItem(constantsAndConfigs.baseNotes[self.staticItem["root"]])
self.rootGlyph.setParentItem(self)
self.rootGlyph.setPos(constantsAndConfigs.negativeMagicPixel, 2*constantsAndConfigs.stafflineGap)
accidentals = { #QGraphicsItems can only be used once so we have to save a class constructor here instead of an instance.
0 : lambda: QtSvg.QGraphicsSvgItem(":svg/accidentalsNatural.svg"), #normaly we don't receive those, but it is possible to ask for explicit naturals in the backend and in lilypond.
10 : lambda: QtSvg.QGraphicsSvgItem(":svg/accidentalsSharp.svg"),
20 : lambda: QtSvg.QGraphicsSvgItem(":svg/accidentalsDoublesharp.svg"),
-10 : lambda: QtSvg.QGraphicsSvgItem(":svg/accidentalsFlat.svg"),
-20 : lambda: QtSvg.QGraphicsSvgItem(":svg/accidentalsFlatFlat.svg"),
}
class GuiClef(GuiItem):
def __init__(self, staticItem):
super(GuiClef, self).__init__(staticItem)
self.createGraphicItemsFromData()
def createGraphicItemsFromData(self):
self.glyph = GuiClef.clefs[self.staticItem["clef"]]()
self.glyph.setParentItem(self)
self.glyph.setPos(-5, -5 * constantsAndConfigs.stafflineGap)
#self.text = QtWidgets.QGraphicsSimpleTextItem(self.staticItem["clef"].title())
#self.text.setParentItem(self)
#self.text.setPos(0, -5 * constantsAndConfigs.stafflineGap)
self.marker = GuiPositionMarker(-5)
self.marker.setParentItem(self)
self.marker.setPos(0,0)
clefs = { #QGraphicsItems can only be used once so we have to save a class constructor here instead of an instance.
"treble" : lambda: QtSvg.QGraphicsSvgItem(":svg/clefTreble.svg"),
"treble_8" : lambda: QtSvg.QGraphicsSvgItem(":svg/clefTreble_8.svg"),
"treble^8" : lambda: QtSvg.QGraphicsSvgItem(":svg/clefTreble^8.svg"),
"bass" : lambda: QtSvg.QGraphicsSvgItem(":svg/clefBass.svg"),
"bass_8" : lambda: QtSvg.QGraphicsSvgItem(":svg/clefBass_8.svg"),
"alto" : lambda: QtSvg.QGraphicsSvgItem(":svg/clefAlto.svg"),
"midiDrum" : lambda: QtSvg.QGraphicsSvgItem(":svg/clefPercussion.svg"),
"percussion" : lambda: QtSvg.QGraphicsSvgItem(":svg/clefPercussion.svg"),
}
class GuiTimeSignature(GuiItem):
def __init__(self, staticItem):
raise Exception("Don't use this item. It will be deleted in future versions. Use a Metrical Instruction")
super().__init__(staticItem)
self.setPos(0, constantsAndConfigs.stafflineGap)
self.createGraphicItemsFromData()
def createGraphicItemsFromData(self):
#higher number, how many notes
for i, charInt in enumerate(str(self.staticItem["nominator"])):
n = GuiTimeSignature.digits[int(charInt)]
charInt = QtSvg.QGraphicsSvgItem()
charInt.setSharedRenderer(GuiTimeSignature.renderer)
charInt.setElementId(n)
charInt.setPos(i*2*constantsAndConfigs.magicPixel, -1*constantsAndConfigs.stafflineGap)
charInt.setParentItem(self)
#lower number, which note type
for i, charInt in enumerate(str(self.staticItem["denominator"])): #2^n
n = GuiTimeSignature.digits[int(charInt)]
charInt = QtSvg.QGraphicsSvgItem()
charInt.setSharedRenderer(GuiTimeSignature.renderer)
charInt.setElementId(n)
charInt.setPos(i*2*constantsAndConfigs.magicPixel, constantsAndConfigs.stafflineGap)
charInt.setParentItem(self)
renderer = QtSvg.QSvgRenderer(":svg/numbers.svg")
digits = "zero one two three four five six seven eight nine".split() #a list
class GuiMetricalInstruction(GuiItem):
def __init__(self, staticItem):
super().__init__(staticItem)
if staticItem["oneMeasureInTicks"] == 0:
#Basically just a manual barline
displayString = "Metrical Off"
markerPosition = -2
markerHeight = 4
else:
#Format the Tree of Instructions
realTree = eval(staticItem["treeOfInstructions"])
if not type(realTree[0]) is tuple: #first order measure. like 3/4 or 2/4 or anything with just one stressed position
realTree = (realTree, ) #created nested iterator
r = self.treeToPrettyString(realTree)
r = r.__repr__()[1:-1].replace("'", "")
onlyTopLevelElements = not any(isinstance(el, list) for el in r)
if onlyTopLevelElements:
r = r.replace(",", "")
displayString = "Metrical " + r
markerHeight = -7
markerPosition = 1
self.text = QtWidgets.QGraphicsSimpleTextItem(displayString)
self.text.setParentItem(self)
self.text.setPos(0, -7 * constantsAndConfigs.stafflineGap)
self.marker = GuiPositionMarker(markerHeight, markerPosition)
self.marker.setParentItem(self)
self.marker.setPos(0,0)
def treeToPrettyString(self, tree):
"""Convert a metrical instruction into a pretty string with note symbols
For example
((53760, 53760), (53760, 53760))
which is ((D4, D4), (D4, D4))
into
2𝅘𝅥 2𝅘𝅥
"""
result = []
for element in tree:
if type(element) is tuple:
l = self.treeToPrettyString(element)
l = ["{}{}".format(sum(1 for e in grouper), note) for note, grouper in groupby(l)]
if len(l) == 1:
l = l[0] #makes formatting clearerm
result.append(l)
else:
assert type(element) is int
noteString = constantsAndConfigs.realNoteDisplay[element]
result.append(noteString)
return result
class GuiBlockEndMarker(GuiItem):
def __init__(self, staticItem):
super(GuiBlockEndMarker, self).__init__(staticItem)
self.glyph = QtSvg.QGraphicsSvgItem(":svg/blockEnd.svg")
self.createGraphicItemsFromData()
def createGraphicItemsFromData(self):
self.glyph.setParentItem(self)
class GuiDynamicSignature(GuiItem):
def __init__(self, staticItem):
super(GuiDynamicSignature, self).__init__(staticItem)
self.glyph = QtWidgets.QGraphicsSimpleTextItem(staticItem["keyword"])
self.createGraphicItemsFromData()
def createGraphicItemsFromData(self):
self.glyph.setPos(0, 5*constantsAndConfigs.stafflineGap)
self.glyph.setParentItem(self)
class GuiMultiMeasureRest(GuiItem):
def __init__(self, staticItem):
super(GuiMultiMeasureRest, self).__init__(staticItem)
self.createGraphicItemsFromData()
def createGraphicItemsFromData(self):
w = self.staticItem["completeDuration"] / constantsAndConfigs.ticksToPixelRatio - constantsAndConfigs.magicPixel*2
if int(self.staticItem["numberOfMeasures"]) == self.staticItem["numberOfMeasures"]: #just an int?
numberOfMeasuresString = str(int(self.staticItem["numberOfMeasures"]))
else:
numberOfMeasuresString = str(self.staticItem["numberOfMeasures"]) #include the decimal dot
rect = QtWidgets.QGraphicsRectItem(constantsAndConfigs.magicPixel,0, w, constantsAndConfigs.stafflineGap) #x,y, w, h
rect.setBrush(QtCore.Qt.black)
rect.setParentItem(self)
self.rect = rect #for stretching
leftBlock = QtWidgets.QGraphicsRectItem(2, -1* constantsAndConfigs.stafflineGap, constantsAndConfigs.magicPixel, 3*constantsAndConfigs.stafflineGap)
leftBlock.setBrush(QtCore.Qt.black)
leftBlock.setParentItem(self)
rightBlock = QtWidgets.QGraphicsRectItem(0, -1* constantsAndConfigs.stafflineGap, constantsAndConfigs.magicPixel, 3*constantsAndConfigs.stafflineGap) #x, y, w, h
rightBlock.setBrush(QtCore.Qt.black)
#rightBlock.setPos(w,0)
rightBlock.setPos(rect.rect().right(),0)
rightBlock.setParentItem(self)
self.rightBlock = rightBlock #for stretching
for i, char in enumerate(numberOfMeasuresString):
if char == ".":
continue #TODO: Maybe warn about that? MMR below 1 are not valid but they are needed for editing purposes. Sometimes you need to go through such a value.
else:
n = GuiTimeSignature.digits[int(char)]
char = QtSvg.QGraphicsSvgItem()
char.setSharedRenderer(GuiTimeSignature.renderer)
char.setElementId(n)
#char.setPos(i*4*constantsAndConfigs.magicPixel + 4* constantsAndConfigs.magicPixel, -3*constantsAndConfigs.stafflineGap)
char.setPos(leftBlock.rect().width(), -3*constantsAndConfigs.stafflineGap)
char.setScale(1.5)
char.setParentItem(self)
self.setPos(0, -3 * constantsAndConfigs.stafflineGap)
def stretchXCoordinates(self, factor):
"""Reposition the items on the X axis.
Call goes through all parents/children, starting from ScoreView._stretchXCoordinates.
Docstring there."""
stretchRect(self.rect, factor)
self.rightBlock.setX(self.rightBlock.pos().x() * factor)
#self.char.setX(self.char.pos().x() * factor)
class GuiLegatoSlur(GuiItem):
def __init__(self, staticItem):
super().__init__(staticItem)
if staticItem["slur"] == "open":
self.glyph = QtWidgets.QGraphicsSimpleTextItem("(")
self.glyph.setPos(2,-5*constantsAndConfigs.stafflineGap)
else:
assert staticItem["slur"] == "close"
self.glyph = QtWidgets.QGraphicsSimpleTextItem(")")
self.glyph.setPos(-4,-5*constantsAndConfigs.stafflineGap)
self.createGraphicItemsFromData()
def createGraphicItemsFromData(self):
#self.glyph.setPos(0, -5*constantsAndConfigs.stafflineGap)
self.glyph.setParentItem(self)
class GuiGenericText(GuiItem):
def __init__(self, staticItem):
super().__init__(staticItem)
self.glyph = QtWidgets.QGraphicsSimpleTextItem(staticItem["UIstring"])
self.glyph.setPos(0, -5*constantsAndConfigs.stafflineGap)
self.glyph.setParentItem(self)
def staticItem2Item(staticItem):
typ = staticItem["type"]
if typ is "Chord":
return GuiChord(staticItem)
elif typ is "Rest":
return GuiRest(staticItem)
elif typ is "LegatoSlur":
return GuiLegatoSlur(staticItem)
elif typ is "MultiMeasureRest":
return GuiMultiMeasureRest(staticItem)
elif typ is "DynamicSignature":
return GuiDynamicSignature(staticItem)
elif typ is "Clef":
return GuiClef(staticItem)
elif typ is "KeySignature":
return GuiKeySignature(staticItem)
#elif typ is "TimeSignature":
# return GuiTimeSignature(staticItem)
elif typ is "MetricalInstruction":
return GuiMetricalInstruction(staticItem)
elif typ is "BlockEndMarker":
return GuiBlockEndMarker(staticItem)
elif typ in ("InstrumentChange", "ChannelChange",):
return GuiGenericText(staticItem)
else:
raise ValueError("Unknown Item Type:", staticItem)