PyQt5 blurpicker example

alekssandrap

Hello, does someone has the Python (PyQt5) version of the BlurPicker example from the Qt Crator 5. Itried to convert it to Python, but I cant get the right solution . This is my code:

import math


from PyQt5.QtCore import (pyqtSignal,QEasingCurve, QPointF, QPropertyAnimation, QAbstractAnimation, QRect,
        QRectF, QState, QStateMachine, Qt, QTimer)
from PyQt5.QtGui import QPixmap, QPainter
from PyQt5.QtWidgets import (QApplication, QGraphicsScene, QGraphicsView,QGraphicsItem,
        QGraphicsWidget, QFrame)


class BlurPicker(QGraphicsView):
    def __init__(self, parent=None):
        super(BlurPicker, self).__init__(parent)

        self.m_index = 0.0
        self.scene = QGraphicsScene()
        self.m_icons = []
        self.names = []
        self.m_animation = QPropertyAnimation(self,b'index')
        print("bb")

        #self.setScene(self.scene)

        self.setupScene()
        self.setIndex(0)

        self.m_animation.setDuration(400)
        self.m_animation.setEasingCurve(QEasingCurve.InOutSine)

        self.setRenderHint(QPainter.Antialiasing)
        self.setFrameStyle(QFrame.NoFrame)

    def index(self):
        print("aa")

        return self.m_index

    def setIndex(self,index):
        self.m_index = index
        self.baseline = 0
        print(self.m_icons.count(self))
        for i in range(self.m_icons.count(self)):
            print("ii")

            icon = QGraphicsItem()
            self.a = ((i + self.m_index)*2*math.pi/ self.m_icons.count(self))
            xs = 170 * math.sin(self.a)
            ys = 170 * math.cos(self.a)
            pos = QPointF(xs, ys)
            icon.setPos(pos)
            self.baseline = math.max(self.baseline, ys)
            icon.graphicsEffect().setBaseLine(self.baseline)

        self.scene.update()


    def setupScene(self):
        self.scene.setSceneRect(-300, -200, 600, 460)
        names = []
        names.append('green_box.png')
        names.append('green_box.png')
        names.append('green_box.png')
        names.append('green_box.png')
        names.append('green_box.png')
        names.append('green_box.png')
        names.append('green_box.png')

        print(names)

        for i in names:
            pixmap = QPixmap(names)
            icon = self.scene.addPixmap(pixmap)
            icon.setZValue(1)
            self.m_icons.append(icon)
            self.scene.addItem(icon)

    def keyPressEvent(self, e):
        delta = 0
        if e.key() == Qt.Key_Left:
            delta = -1
        elif e.key() == Qt.Key_Right:
            delta = 1
        else:
            pass
        if self.m_animation.state() == QAbstractAnimation.Stopped and delta:
            self.m_animation.setEndValue(self.m_index + delta)
            self.m_animation.star()
            e.accept()

if __name__== '__main__':
    import sys

    app = QApplication(sys.argv)
    picker = BlurPicker()
    picker.setWindowTitle("Picker")
    picker.resize(640, 480)
    picker.show()

    sys.exit(app.exec_())

the_

@alekssandrap said in PyQt5 blurpicker example:
What do you exactly mean with

but I cant get the right solution .

?

Any errors, any crashes, other unexpected behaviour?

alekssandrap

I only am getting an empty window as an output. And this error: QPropertyAnimation: you're trying to animate a non-existing property index of your QObject

the_

@alekssandrap

Did not go through all the code but

for i in names:
            pixmap = QPixmap(names)
            icon = self.scene.addPixmap(pixmap)
            icon.setZValue(1)
            self.m_icons.append(icon)
            self.scene.addItem(icon)

as names is a list and you iterate through this list you should use i instead of names in pixmap = ...

also there seems to be a typo self.m_animation.star() should be self.m_animation.start()

alekssandrap

Thank you! I didnt noticed that. I did correct this mistakes, but still getting the same error:( and empty window :/