Nils
3 years ago
6 changed files with 437 additions and 35 deletions
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#! /usr/bin/env python3 |
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# -*- coding: utf-8 -*- |
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""" |
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Copyright 2021, Nils Hilbricht, Germany ( https://www.hilbricht.net ) |
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This file is part of the Laborejo Software Suite ( https://www.laborejo.org ), |
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This is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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""" |
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import logging; logger = logging.getLogger(__name__); logger.info("import") |
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#Standard Library Modules |
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#Third Party Modules |
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from PyQt5 import QtWidgets, QtCore, QtGui, QtOpenGL |
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#Template Modules |
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from template.engine.duration import baseDurationToTraditionalNumber |
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#User modules |
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import engine.api as api |
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from .verticalpiano import WIDTH as HEIGHT |
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from .verticalpiano import STAFFLINEGAP as WIDTH |
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WIDTH = WIDTH * 1.5 |
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SCOREWIDTH = WIDTH * 75 #75 white keys. The vertical piano does have a linear layout while we have the inverleaved piano one. |
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class HorizontalPiano(QtWidgets.QGraphicsView): |
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def __init__(self, mainWindow): |
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super().__init__(mainWindow) |
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self.mainWindow = mainWindow |
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self.setAlignment(QtCore.Qt.AlignLeft|QtCore.Qt.AlignTop) |
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self.setDragMode(QtWidgets.QGraphicsView.NoDrag) |
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self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn) |
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self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff) |
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self.pianoScene = _HorizontalPianoScene(self) |
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self.setScene(self.pianoScene) |
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self.setSceneRect(QtCore.QRectF(0, 0, SCOREWIDTH, HEIGHT)) #x,y,w,h |
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#self.setFixedHeight(SCOREHEIGHT+3) # Don't set to scoreheight. Then we don't get a scrollbar. We need to set the sceneRect to 100%, not the view. |
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#self.mainWindow.ui.horizontalPianoFrame.setFixedHeight(SCOREHEIGHT+3) #Don't. This makes the whole window a fixed size! |
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#self.setFixedWidth(WIDTH) #Also done by parent widget in mainWindow |
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self.setLineWidth(0) |
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self.centerOn(SCOREWIDTH/2, 0) |
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def wheelEvent(self, event): |
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"""Convert vertical scrolling to horizontal""" |
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event.accept() #eat the event |
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self.horizontalScrollBar().setValue(self.horizontalScrollBar().value() + event.pixelDelta().y()) #y because it is the original vert. scroll |
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class _HorizontalPianoScene(QtWidgets.QGraphicsScene): |
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"""Most of this is copy paste from piano grid""" |
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def __init__(self, parentView): |
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super().__init__() |
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self.parentView = parentView |
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#Set color, otherwise it will be transparent in window managers or wayland that want that. |
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self.backColor = QtGui.QColor() |
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self.backColor.setNamedColor("#fdfdff") |
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self.setBackgroundBrush(self.backColor) |
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self.linesHorizontal = [] |
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self.allKeys = {} # pitch/int : BlackKey or WhiteKey |
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self.numberLabels = [] #index is pitch |
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self._selectedInstrument = None #tuple instrumentStatus, instrumentData |
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self._leftMouseDown = False #For note preview |
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self.gridPen = QtGui.QPen(QtCore.Qt.SolidLine) |
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self.gridPen.setCosmetic(True) |
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boldPen = QtGui.QPen(QtCore.Qt.SolidLine) |
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boldPen.setCosmetic(True) |
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boldPen.setWidth(1) |
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whitekeyCounter = 0 |
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for i in range(128): |
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blackKey = i % 12 in (1, 3, 6, 8, 10) |
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if blackKey: |
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key = BlackKey(self, i) |
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x = whitekeyCounter * WIDTH - WIDTH/2 |
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numberY = 0 #for later |
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if i < 100: |
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numberX = x + 4 |
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else: |
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numberX = x |
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key.setPos(x, HEIGHT * -0.66) |
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key.setZValue(4) |
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else: |
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key = WhiteKey(self, i) |
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x = whitekeyCounter * WIDTH |
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key.setPos(x, 0) |
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key.setZValue(1) |
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if i < 100: |
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numberX = x + 5 |
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else: |
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numberX = x + 3 |
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numberY = HEIGHT/2 -3 #100 #for later |
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whitekeyCounter += 1 |
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self.addItem(key) #we can setPos before adding to the scene. |
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self.allKeys[i] = key |
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if not blackKey: |
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vline = QtWidgets.QGraphicsLineItem(0, 0, 0, HEIGHT) #x1, y1, x2, y2 |
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vline.setPen(self.gridPen) |
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self.addItem(vline) |
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vline.setPos(key.x(), 0) |
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vline.setEnabled(False) |
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vline.setAcceptedMouseButtons(QtCore.Qt.NoButton) #Disabled items discard the mouse event unless mouseButtons are not accepted |
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vline.setZValue(2) #above the white keys |
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self.linesHorizontal.append(vline) |
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#Numbers last so they are on top. |
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numberLabel = NumberLabel(self, i) |
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self.addItem(numberLabel) |
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self.numberLabels.append(numberLabel) #index is pitch |
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#numberLabel.setPos(i * WIDTH + 2, 0) |
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numberLabel.setPos(numberX, numberY) |
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numberLabel.setZValue(10) |
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self.fakeDeactivationOverlay = QtWidgets.QGraphicsRectItem(0,0, SCOREWIDTH, HEIGHT) |
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self.fakeDeactivationOverlay.setBrush(QtGui.QColor("black")) |
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self.fakeDeactivationOverlay.setOpacity(0.6) |
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self.fakeDeactivationOverlay.setEnabled(False) |
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self.fakeDeactivationOverlay.setAcceptedMouseButtons(QtCore.Qt.NoButton) #Disabled items discard the mouse event unless mouseButtons are not accepted |
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self.addItem(self.fakeDeactivationOverlay) |
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self.fakeDeactivationOverlay.setPos(0,0) |
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self.fakeDeactivationOverlay.setZValue(12) #above the numbers |
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self.fakeDeactivationOverlay.show() |
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#Keyboard Creation Done |
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api.callbacks.instrumentMidiNoteOnActivity.append(self.highlightNoteOn) |
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api.callbacks.instrumentMidiNoteOffActivity.append(self.highlightNoteOff) |
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api.callbacks.instrumentStatusChanged.append(self.instrumentStatusChanged) |
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def clearHorizontalPiano(self): |
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for keyPitch, keyObject in self.allKeys.items(): |
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keyObject.show() |
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keyObject.highlightOff() |
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keyObject.setPlayable(False) |
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keyObject.setKeySwitch(False) |
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for nl in self.numberLabels: |
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nl.setLabel("") #reset to just number |
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self.fakeDeactivationOverlay.show() |
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def instrumentStatusChanged(self, instrumentStatus:dict): |
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"""GUI callback. Data is live""" |
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#Is this for us? |
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if instrumentStatus and self._selectedInstrument and not instrumentStatus["idKey"] == self._selectedInstrument[0]["idKey"]: |
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return |
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#else: |
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# print ("not for us", instrumentStatus["idKey"]) |
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self.clearHorizontalPiano() |
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if not instrumentStatus["state"]: |
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self.fakeDeactivationOverlay.show() |
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return |
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self.fakeDeactivationOverlay.hide() |
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for keyPitch, keyObject in self.allKeys.items(): |
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if keyPitch in instrumentStatus["keySwitches"]: |
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opcode, keyswitchLabel = instrumentStatus["keySwitches"][keyPitch] |
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self.numberLabels[keyPitch].setLabel(keyswitchLabel) |
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keyObject.setKeySwitch(True) |
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elif keyPitch in instrumentStatus["playableKeys"]: |
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keyObject.setPlayable(True) |
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#else: |
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#self.numberLabels[keyPitch].hide() |
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def selectedInstrumentChanged(self, instrumentStatus, instrumentData): |
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"""GUI click to different instrument. The arguments are cached GUI data |
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If a library is clicked, and not an instrument, both parameters will be None. |
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""" |
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if instrumentStatus is None: |
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self._selectedInstrument = None |
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self.clearHorizontalPiano() |
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self.fakeDeactivationOverlay.show() |
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else: |
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self._selectedInstrument = (instrumentStatus, instrumentData) |
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self.instrumentStatusChanged(instrumentStatus) |
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def highlightNoteOn(self, idKey:tuple, pitch:int, velocity:int): |
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self.allKeys[pitch].highlightOn() |
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def highlightNoteOff(self, idKey:tuple, pitch:int, velocity:int): |
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self.allKeys[pitch].highlightOff() |
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def allHighlightsOff(self): |
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for keyPitch, keyObject in self.allKeys.items(): |
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keyObject[pitch].highlightNoteOff() |
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def mousePressEvent(self, event): |
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self._leftMouseDown = False |
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if event.button() == QtCore.Qt.LeftButton: |
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self._leftMouseDown = True |
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self._lastPlayPitch = None #this must not be in _play, otherwise you can't move the mouse while pressed down |
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self._play(event) |
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super().mousePressEvent(event) |
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def wheelEvent(self, event): |
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event.ignore() #let the view handle it, for the scrollbar |
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def _off(self): |
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if self._selectedInstrument and not self._lastPlayPitch is None: |
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status, data = self._selectedInstrument |
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libId, instrId = status["idKey"] |
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api.sendNoteOffToInstrument(status["idKey"], self._lastPlayPitch) |
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self._lastPlayPitch = None |
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def _play(self, event): |
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assert self._leftMouseDown |
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potentialItem = self.itemAt(event.scenePos(), self.parentView.transform() ) |
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if not (potentialItem and type(potentialItem) in (BlackKey, WhiteKey)): |
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return |
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pitch = potentialItem.pitch |
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if pitch < 0 or pitch > 127: |
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pitch = None |
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if self._selectedInstrument and not pitch == self._lastPlayPitch: |
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#TODO: Play note on at a different instrument than note off? Possible? |
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status, data = self._selectedInstrument |
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if not self._lastPlayPitch is None: |
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#Force a note off that is currently playing but not under the cursor anymore |
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#User did some input tricks with keyboard and mouse combined etc. |
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api.sendNoteOffToInstrument(status["idKey"], self._lastPlayPitch) |
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if not pitch is None: |
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#This is the normal note-on click |
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api.sendNoteOnToInstrument(status["idKey"], pitch) |
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self._lastPlayPitch = pitch |
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def mouseMoveEvent(self, event): |
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"""Event button is always 0 in a mouse move event""" |
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if self._leftMouseDown: |
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self._play(event) |
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super().mouseMoveEvent(event) |
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def mouseReleaseEvent(self, event): |
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if self._leftMouseDown: |
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self._off() |
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self._leftMouseDown = False |
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if event.button() == QtCore.Qt.LeftButton: |
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self._lastPlayPitch = None |
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super().mouseReleaseEvent(event) |
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class NumberLabel(QtWidgets.QGraphicsSimpleTextItem): |
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"""In opposite to verticalPiano the key label is a different childItem as the number""" |
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def __init__(self, parentGrid, number:int): |
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super().__init__() |
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self.parentGrid = parentGrid |
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self.number = number |
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self.labelItem = QtWidgets.QGraphicsSimpleTextItem("") |
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self.labelItem.setParentItem(self) |
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self.currentLabel = "" |
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self.setText(str(number)) |
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self.setFlag(QtWidgets.QGraphicsItem.ItemIgnoresParentOpacity, True) |
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self.setAcceptedMouseButtons(QtCore.Qt.NoButton) |
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blackKey = number % 12 in (1, 3, 6, 8, 10) |
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if blackKey: |
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self.setBrush(QtGui.QColor("white")) |
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self.labelItem.setBrush(QtGui.QColor("white")) |
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self.setScale(0.9) |
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self.labelItem.setRotation(90) |
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self.labelItem.setPos(15,15) |
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else: |
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self.setBrush(QtGui.QColor("black")) |
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self.labelItem.setBrush(QtGui.QColor("black")) |
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self.setScale(1) |
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self.labelItem.setRotation(-90) |
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self.labelItem.setPos(-5,0) |
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def setLabel(self, label:str): |
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"""Each key can have an optional text label for keyswitches, percussion names etc. |
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Use with empty string to reset to just the midi pitch number.""" |
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self.currentLabel = label |
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self.labelItem.setText(label) |
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class BlackKey(QtWidgets.QGraphicsRectItem): |
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def __init__(self, parentGrid, pitch): |
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super().__init__(0, 0, WIDTH * 0.8, HEIGHT) #x, y, w, h |
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self.parentGrid = parentGrid |
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self.pitch = pitch |
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self.setPen(QtGui.QPen(QtCore.Qt.NoPen)) |
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self.setBrush(QtGui.QColor("black")) |
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self.setEnabled(False) |
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self.setAcceptedMouseButtons(QtCore.Qt.NoButton) |
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self.decorationOverlay = QtWidgets.QGraphicsRectItem(0, 0, WIDTH * 0.8, HEIGHT) #x, y, w, h |
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self.decorationOverlay.setEnabled(False) |
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self.decorationOverlay.setAcceptedMouseButtons(QtCore.Qt.NoButton) |
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self.decorationOverlay.setFlag(QtWidgets.QGraphicsItem.ItemIgnoresParentOpacity, True) |
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self.decorationOverlay.setOpacity(0.2) #just a tint |
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self.decorationOverlay.hide() |
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self.decorationOverlay.setParentItem(self) |
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self.highlight = QtWidgets.QGraphicsRectItem(0, 0, WIDTH * 0.8, HEIGHT) #x, y, w, h |
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self.highlight.setEnabled(False) |
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self.highlight.setAcceptedMouseButtons(QtCore.Qt.NoButton) |
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self.highlight.setFlag(QtWidgets.QGraphicsItem.ItemIgnoresParentOpacity, True) |
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self.highlight.setOpacity(0.5) |
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self.highlight.setBrush(QtGui.QColor("cyan")) |
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self.highlight.hide() |
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self.highlight.setParentItem(self) |
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def setPlayable(self, state:bool): |
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if state: |
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self.decorationOverlay.show() |
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self.decorationOverlay.setBrush(QtGui.QColor("orange")) |
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else: |
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self.decorationOverlay.hide() |
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def setKeySwitch(self, state:bool): |
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if state: |
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self.decorationOverlay.show() |
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self.decorationOverlay.setBrush(QtGui.QColor("red")) |
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else: |
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self.decorationOverlay.hide() |
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def highlightOn(self): |
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self.highlight.show() |
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def highlightOff(self): |
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self.highlight.hide() |
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class WhiteKey(QtWidgets.QGraphicsRectItem): |
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def __init__(self, parentGrid, pitch:int): |
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super().__init__(0, 0, WIDTH, HEIGHT) #x, y, w, h |
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self.parentGrid = parentGrid |
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self.pitch = pitch |
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self.setPen(QtGui.QPen(QtCore.Qt.NoPen)) |
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self.setBrush(QtGui.QColor("white")) |
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self.setEnabled(False) |
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self.setAcceptedMouseButtons(QtCore.Qt.NoButton) |
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self.decorationOverlay = QtWidgets.QGraphicsRectItem(0, 0, WIDTH, HEIGHT) #x, y, w, h |
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self.decorationOverlay.setEnabled(False) |
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self.decorationOverlay.setAcceptedMouseButtons(QtCore.Qt.NoButton) |
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self.decorationOverlay.setFlag(QtWidgets.QGraphicsItem.ItemIgnoresParentOpacity, True) |
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self.decorationOverlay.setOpacity(0.2) #just a tint |
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self.decorationOverlay.hide() |
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self.decorationOverlay.setParentItem(self) |
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self.highlight = QtWidgets.QGraphicsRectItem(0, 0, WIDTH, HEIGHT) #x, y, w, h |
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self.highlight.setEnabled(False) |
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self.highlight.setAcceptedMouseButtons(QtCore.Qt.NoButton) |
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self.highlight.setFlag(QtWidgets.QGraphicsItem.ItemIgnoresParentOpacity, True) |
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self.highlight.setOpacity(0.5) |
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self.highlight.setBrush(QtGui.QColor("cyan")) |
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self.highlight.hide() |
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self.highlight.setParentItem(self) |
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def setPlayable(self, state:bool): |
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if state: |
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self.decorationOverlay.show() |
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self.decorationOverlay.setBrush(QtGui.QColor("orange")) |
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else: |
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self.decorationOverlay.hide() |
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def setKeySwitch(self, state:bool): |
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if state: |
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self.decorationOverlay.show() |
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self.decorationOverlay.setBrush(QtGui.QColor("red")) |
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else: |
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self.decorationOverlay.hide() |
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def highlightOn(self): |
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self.highlight.show() |
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def highlightOff(self): |
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self.highlight.hide() |
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