#!/usr/bin/env python3 # -*- coding: utf-8 -*- # Pixmap Dial, a custom Qt widget # Copyright (C) 2011-2022 Filipe Coelho # # 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 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. # # For a full copy of the GNU General Public License see the doc/GPL.txt file. # --------------------------------------------------------------------------------------------------------------------- # Imports (Global) from math import cos, floor, pi, sin from PyQt5.QtCore import pyqtSlot, Qt, QEvent, QPointF, QRectF, QTimer, QSize from PyQt5.QtGui import QColor, QConicalGradient, QFontMetrics, QPainterPath, QPen, QPixmap from PyQt5.QtWidgets import QDial from .commondial import CommonDial # --------------------------------------------------------------------------------------------------------------------- # Widget Class class PixmapDial(CommonDial): def __init__(self, parent, index=0): CommonDial.__init__(self, parent, index) self.fPixmap = QPixmap(":/bitmaps/dial_01d.png") self.fPixmapNum = "01" if self.fPixmap.width() > self.fPixmap.height(): self.fPixmapOrientation = self.HORIZONTAL else: self.fPixmapOrientation = self.VERTICAL self.updateSizes() def getBaseSize(self): return self.fPixmapBaseSize def updateSizes(self): self.fPixmapWidth = self.fPixmap.width() self.fPixmapHeight = self.fPixmap.height() if self.fPixmapWidth < 1: self.fPixmapWidth = 1 if self.fPixmapHeight < 1: self.fPixmapHeight = 1 if self.fPixmapOrientation == self.HORIZONTAL: self.fPixmapBaseSize = self.fPixmapHeight self.fPixmapLayersCount = self.fPixmapWidth / self.fPixmapHeight else: self.fPixmapBaseSize = self.fPixmapWidth self.fPixmapLayersCount = self.fPixmapHeight / self.fPixmapWidth self.setMinimumSize(self.fPixmapBaseSize, self.fPixmapBaseSize + self.fLabelHeight + 5) self.setMaximumSize(self.fPixmapBaseSize, self.fPixmapBaseSize + self.fLabelHeight + 5) if not self.fLabel: self.fLabelHeight = 0 self.fLabelWidth = 0 return self.fLabelWidth = QFontMetrics(self.fLabelFont).width(self.fLabel) self.fLabelHeight = QFontMetrics(self.fLabelFont).height() self.fLabelPos.setX(float(self.fPixmapBaseSize)/2.0 - float(self.fLabelWidth)/2.0) if self.fPixmapNum in ("01", "02", "07", "08", "09", "10"): self.fLabelPos.setY(self.fPixmapBaseSize + self.fLabelHeight) elif self.fPixmapNum in ("11",): self.fLabelPos.setY(self.fPixmapBaseSize + self.fLabelHeight*2/3) else: self.fLabelPos.setY(self.fPixmapBaseSize + self.fLabelHeight/2) self.fLabelGradient.setStart(0, float(self.fPixmapBaseSize)/2.0) self.fLabelGradient.setFinalStop(0, self.fPixmapBaseSize + self.fLabelHeight + 5) self.fLabelGradientRect = QRectF(float(self.fPixmapBaseSize)/8.0, float(self.fPixmapBaseSize)/2.0, float(self.fPixmapBaseSize*3)/4.0, self.fPixmapBaseSize+self.fLabelHeight+5) def setPixmap(self, pixmapId): self.fPixmapNum = "%02i" % pixmapId self.fPixmap.load(":/bitmaps/dial_%s%s.png" % (self.fPixmapNum, "" if self.isEnabled() else "d")) if self.fPixmap.width() > self.fPixmap.height(): self.fPixmapOrientation = self.HORIZONTAL else: self.fPixmapOrientation = self.VERTICAL # special pixmaps if self.fCustomPaintMode == self.CUSTOM_PAINT_MODE_NULL: # reserved for carla-wet, carla-vol, carla-pan and color if self.fPixmapNum == "03": self.fCustomPaintMode = self.CUSTOM_PAINT_MODE_COLOR # reserved for carla-L and carla-R elif self.fPixmapNum == "04": self.fCustomPaintMode = self.CUSTOM_PAINT_MODE_CARLA_L # reserved for zita elif self.fPixmapNum == "06": self.fCustomPaintMode = self.CUSTOM_PAINT_MODE_ZITA self.updateSizes() self.update() @pyqtSlot() def slot_updatePixmap(self): self.setPixmap(int(self.fPixmapNum)) def minimumSizeHint(self): return QSize(self.fPixmapBaseSize, self.fPixmapBaseSize) def sizeHint(self): return QSize(self.fPixmapBaseSize, self.fPixmapBaseSize) def changeEvent(self, event): CommonDial.changeEvent(self, event) # Force pixmap update if enabled state changes if event.type() == QEvent.EnabledChange: self.setPixmap(int(self.fPixmapNum)) def paintDial(self, painter): if self.isEnabled(): normValue = float(self.fRealValue - self.fMinimum) / float(self.fMaximum - self.fMinimum) target = QRectF(0.0, 0.0, self.fPixmapBaseSize, self.fPixmapBaseSize) curLayer = int((self.fPixmapLayersCount - 1) * normValue) if self.fPixmapOrientation == self.HORIZONTAL: xpos = self.fPixmapBaseSize * curLayer ypos = 0.0 else: xpos = 0.0 ypos = self.fPixmapBaseSize * curLayer source = QRectF(xpos, ypos, self.fPixmapBaseSize, self.fPixmapBaseSize) painter.drawPixmap(target, self.fPixmap, source) # Custom knobs (Dry/Wet and Volume) if self.fCustomPaintMode in (self.CUSTOM_PAINT_MODE_CARLA_WET, self.CUSTOM_PAINT_MODE_CARLA_VOL): # knob color colorGreen = QColor(0x5D, 0xE7, 0x3D).lighter(100 + self.fHoverStep*6) colorBlue = QColor(0x3E, 0xB8, 0xBE).lighter(100 + self.fHoverStep*6) # draw small circle ballRect = QRectF(8.0, 8.0, 15.0, 15.0) ballPath = QPainterPath() ballPath.addEllipse(ballRect) #painter.drawRect(ballRect) tmpValue = (0.375 + 0.75*normValue) ballValue = tmpValue - floor(tmpValue) ballPoint = ballPath.pointAtPercent(ballValue) # draw arc startAngle = 216*16 spanAngle = -252*16*normValue if self.fCustomPaintMode == self.CUSTOM_PAINT_MODE_CARLA_WET: painter.setBrush(colorBlue) painter.setPen(QPen(colorBlue, 0)) painter.drawEllipse(QRectF(ballPoint.x(), ballPoint.y(), 2.2, 2.2)) gradient = QConicalGradient(15.5, 15.5, -45) gradient.setColorAt(0.0, colorBlue) gradient.setColorAt(0.125, colorBlue) gradient.setColorAt(0.625, colorGreen) gradient.setColorAt(0.75, colorGreen) gradient.setColorAt(0.76, colorGreen) gradient.setColorAt(1.0, colorGreen) painter.setBrush(gradient) painter.setPen(QPen(gradient, 3)) else: painter.setBrush(colorBlue) painter.setPen(QPen(colorBlue, 0)) painter.drawEllipse(QRectF(ballPoint.x(), ballPoint.y(), 2.2, 2.2)) painter.setBrush(colorBlue) painter.setPen(QPen(colorBlue, 3)) painter.drawArc(4.0, 4.0, 26.0, 26.0, startAngle, spanAngle) # Custom knobs (L and R) elif self.fCustomPaintMode in (self.CUSTOM_PAINT_MODE_CARLA_L, self.CUSTOM_PAINT_MODE_CARLA_R): # knob color color = QColor(0xAD, 0xD5, 0x48).lighter(100 + self.fHoverStep*6) # draw small circle ballRect = QRectF(7.0, 8.0, 11.0, 12.0) ballPath = QPainterPath() ballPath.addEllipse(ballRect) #painter.drawRect(ballRect) tmpValue = (0.375 + 0.75*normValue) ballValue = tmpValue - floor(tmpValue) ballPoint = ballPath.pointAtPercent(ballValue) painter.setBrush(color) painter.setPen(QPen(color, 0)) painter.drawEllipse(QRectF(ballPoint.x(), ballPoint.y(), 2.0, 2.0)) # draw arc if self.fCustomPaintMode == self.CUSTOM_PAINT_MODE_CARLA_L: startAngle = 216*16 spanAngle = -252.0*16*normValue else: startAngle = 324.0*16 spanAngle = 252.0*16*(1.0-normValue) painter.setPen(QPen(color, 2)) painter.drawArc(3.5, 4.5, 22.0, 22.0, startAngle, spanAngle) # Custom knobs (Color) elif self.fCustomPaintMode == self.CUSTOM_PAINT_MODE_COLOR: # knob color color = self.fCustomPaintColor.lighter(100 + self.fHoverStep*6) # draw small circle ballRect = QRectF(8.0, 8.0, 15.0, 15.0) ballPath = QPainterPath() ballPath.addEllipse(ballRect) tmpValue = (0.375 + 0.75*normValue) ballValue = tmpValue - floor(tmpValue) ballPoint = ballPath.pointAtPercent(ballValue) # draw arc startAngle = 216*16 spanAngle = -252*16*normValue painter.setBrush(color) painter.setPen(QPen(color, 0)) painter.drawEllipse(QRectF(ballPoint.x(), ballPoint.y(), 2.2, 2.2)) painter.setBrush(color) painter.setPen(QPen(color, 3)) painter.drawArc(4.0, 4.0, 26.0, 26.0, startAngle, spanAngle) # Custom knobs (Zita) elif self.fCustomPaintMode == self.CUSTOM_PAINT_MODE_ZITA: a = normValue * pi * 1.5 - 2.35 r = 10.0 x = 10.5 y = 10.5 x += r * sin(a) y -= r * cos(a) painter.setBrush(Qt.black) painter.setPen(QPen(Qt.black, 2)) painter.drawLine(QPointF(11.0, 11.0), QPointF(x, y)) # Custom knobs else: painter.restore() return if self.HOVER_MIN < self.fHoverStep < self.HOVER_MAX: self.fHoverStep += 1 if self.fIsHovered else -1 QTimer.singleShot(20, self.update) else: # isEnabled() target = QRectF(0.0, 0.0, self.fPixmapBaseSize, self.fPixmapBaseSize) painter.drawPixmap(target, self.fPixmap, target) # ---------------------------------------------------------------------------------------------------------------------