#!/usr/bin/env python3 # -*- coding: utf-8 -*- # Pixmap Dial, a custom Qt4 widget # Copyright (C) 2011-2014 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 (Config) from carla_config import * # ------------------------------------------------------------------------------------------------------------ # Imports (Global) from math import cos, floor, pi, sin if config_UseQt5: from PyQt5.QtCore import pyqtSignal, pyqtSlot, Qt, QPointF, QRectF, QTimer, QSize from PyQt5.QtGui import QColor, QConicalGradient, QFont, QFontMetrics from PyQt5.QtGui import QLinearGradient, QPainter, QPainterPath, QPen, QPixmap from PyQt5.QtWidgets import QDial else: from PyQt4.QtCore import pyqtSignal, pyqtSlot, Qt, QPointF, QRectF, QTimer, QSize from PyQt4.QtGui import QColor, QConicalGradient, QFont, QFontMetrics from PyQt4.QtGui import QDial, QLinearGradient, QPainter, QPainterPath, QPen, QPixmap # ------------------------------------------------------------------------------------------------------------ # Widget Class class PixmapDial(QDial): # enum CustomPaintMode CUSTOM_PAINT_MODE_NULL = 0 # default (NOTE: only this mode has label gradient) CUSTOM_PAINT_MODE_CARLA_WET = 1 # color blue-green gradient (reserved #3) CUSTOM_PAINT_MODE_CARLA_VOL = 2 # color blue (reserved #3) CUSTOM_PAINT_MODE_CARLA_L = 3 # color yellow (reserved #4) CUSTOM_PAINT_MODE_CARLA_R = 4 # color yellow (reserved #4) CUSTOM_PAINT_MODE_CARLA_PAN = 5 # color yellow (reserved #3) CUSTOM_PAINT_MODE_COLOR = 6 # color, selectable (reserved #3) CUSTOM_PAINT_MODE_ZITA = 7 # custom zita knob (reserved #6) CUSTOM_PAINT_MODE_NO_GRADIENT = 8 # skip label gradient # enum Orientation HORIZONTAL = 0 VERTICAL = 1 HOVER_MIN = 0 HOVER_MAX = 9 # signals realValueChanged = pyqtSignal(float) def __init__(self, parent, index=0): QDial.__init__(self, parent) self.fMinimum = 0.0 self.fMaximum = 1.0 self.fRealValue = 0.0 self.fIsHovered = False self.fHoverStep = self.HOVER_MIN self.fIndex = 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.fLabel = "" self.fLabelPos = QPointF(0.0, 0.0) self.fLabelFont = QFont(self.font()) self.fLabelFont.setPointSize(6) self.fLabelWidth = 0 self.fLabelHeight = 0 if self.palette().window().color().lightness() > 100: # Light background c = self.palette().dark().color() self.fLabelGradientColor1 = c self.fLabelGradientColor2 = QColor(c.red(), c.green(), c.blue(), 0) self.fLabelGradientColorT = [self.palette().buttonText().color(), self.palette().mid().color()] else: # Dark background self.fLabelGradientColor1 = QColor(0, 0, 0, 255) self.fLabelGradientColor2 = QColor(0, 0, 0, 0) self.fLabelGradientColorT = [Qt.white, Qt.darkGray] self.fLabelGradient = QLinearGradient(0, 0, 0, 1) self.fLabelGradient.setColorAt(0.0, self.fLabelGradientColor1) self.fLabelGradient.setColorAt(0.6, self.fLabelGradientColor1) self.fLabelGradient.setColorAt(1.0, self.fLabelGradientColor2) self.fLabelGradientRect = QRectF(0.0, 0.0, 0.0, 0.0) self.fCustomPaintMode = self.CUSTOM_PAINT_MODE_NULL self.fCustomPaintColor = QColor(0xff, 0xff, 0xff) self.updateSizes() # Fake internal value, 10'000 precision QDial.setMinimum(self, 0) QDial.setMaximum(self, 10000) QDial.setValue(self, 0) self.valueChanged.connect(self.slot_valueChanged) def getIndex(self): return self.fIndex def getBaseSize(self): return self.fPixmapBaseSize def forceWhiteLabelGradientText(self): self.fLabelGradientColor1 = QColor(0, 0, 0, 255) self.fLabelGradientColor2 = QColor(0, 0, 0, 0) self.fLabelGradientColorT = [Qt.white, Qt.darkGray] #def setMidWhiteText(self): #self.fColor1 = QColor(0, 0, 0, 255) #self.fColor2 = QColor(0, 0, 0, 0) #self.fColorT = [QColor("#BBB"), Qt.darkGray] 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"): self.fLabelPos.setY(self.fPixmapBaseSize + self.fLabelHeight) 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 setCustomPaintMode(self, paintMode): if self.fCustomPaintMode == paintMode: return self.fCustomPaintMode = paintMode self.update() def setCustomPaintColor(self, color): if self.fCustomPaintColor == color: return self.fCustomPaintColor = color self.update() def setLabel(self, label): if self.fLabel == label: return self.fLabel = label self.updateSizes() self.update() def setEnabled(self, enabled): if self.isEnabled() == enabled: return QDial.setEnabled(self, enabled) self.fPixmap.load(":/bitmaps/dial_%s%s.png" % (self.fPixmapNum, "" if enabled else "d")) self.updateSizes() self.update() def setIndex(self, index): self.fIndex = index 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() def setMinimum(self, value): self.fMinimum = value def setMaximum(self, value): self.fMaximum = value def setValue(self, value): if self.fRealValue == value: return self.fRealValue = value normValue = float(value - self.fMinimum) / float(self.fMaximum - self.fMinimum) QDial.setValue(self, int(normValue * 10000)) @pyqtSlot(int) def slot_valueChanged(self, value): self.fRealValue = float(value)/10000.0 * (self.fMaximum - self.fMinimum) + self.fMinimum self.realValueChanged.emit(self.fRealValue) def minimumSizeHint(self): return QSize(self.fPixmapBaseSize, self.fPixmapBaseSize) def sizeHint(self): return QSize(self.fPixmapBaseSize, self.fPixmapBaseSize) def enterEvent(self, event): self.fIsHovered = True if self.fHoverStep == self.HOVER_MIN: self.fHoverStep = self.HOVER_MIN + 1 QDial.enterEvent(self, event) def leaveEvent(self, event): self.fIsHovered = False if self.fHoverStep == self.HOVER_MAX: self.fHoverStep = self.HOVER_MAX - 1 QDial.leaveEvent(self, event) def paintEvent(self, event): painter = QPainter(self) event.accept() painter.save() painter.setRenderHint(QPainter.Antialiasing, True) if self.fLabel: if self.fCustomPaintMode == self.CUSTOM_PAINT_MODE_NULL: painter.setPen(self.fLabelGradientColor2) painter.setBrush(self.fLabelGradient) painter.drawRect(self.fLabelGradientRect) painter.setFont(self.fLabelFont) painter.setPen(self.fLabelGradientColorT[0 if self.isEnabled() else 1]) painter.drawText(self.fLabelPos, self.fLabel) 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) painter.restore() def resizeEvent(self, event): QDial.resizeEvent(self, event) self.updateSizes() # ------------------------------------------------------------------------------------------------------------ # Main Testing if __name__ == '__main__': import sys from PyQt4.QtGui import QApplication import resources_rc app = QApplication(sys.argv) gui = PixmapDial(None) #gui.setEnabled(True) #gui.setEnabled(False) gui.setPixmap(3) gui.setLabel("hahaha") gui.show() sys.exit(app.exec_())