1 files changed, 105 insertions, 0 deletions
diff --git a/examples/widgets/effects/blurpicker/blurpicker.py b/examples/widgets/effects/blurpicker/blurpicker.py
new file mode 100644
index 000000000..6ff11f217
--- /dev/null
+++ b/examples/widgets/effects/blurpicker/blurpicker.py
@@ -0,0 +1,105 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+
+from pathlib import Path
+from PySide6.QtCore import (
+    QEasingCurve,
+    QPointF,
+    Qt,
+    QAbstractAnimation,
+    QPropertyAnimation,
+    Property,
+)
+from PySide6.QtGui import QPainter, QTransform, QPixmap
+from PySide6.QtWidgets import QGraphicsView, QFrame, QGraphicsScene, QGraphicsPixmapItem
+from math import pi, sin, cos
+from blureffect import BlurEffect
+
+
+class BlurPicker(QGraphicsView):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self._index = 0
+        self._animation = QPropertyAnimation(self, b"index")
+        self._path = Path(__file__).resolve().parent
+
+        self._background = QPixmap(self._path / "images" / "background.jpg")
+        self.setBackgroundBrush(self._background)
+        self.setScene(QGraphicsScene(self))
+
+        self._icons = []
+
+        self.setup_scene()
+        self.index = 0
+
+        self._animation.setDuration(400)
+        self._animation.setEasingCurve(QEasingCurve.InOutSine)
+
+        self.setRenderHint(QPainter.Antialiasing, True)
+        self.setFrameStyle(QFrame.NoFrame)
+
+    @Property(float)
+    def index(self) -> float:
+        return self._index
+
+    @index.setter
+    def index(self, index: float):
+        self._index = index
+
+        base_line = 0.0
+        iconAngle = 2 * pi / len(self._icons)
+
+        for i, icon in enumerate(self._icons):
+            a = (i + self._index) * iconAngle
+            xs = 170 * sin(a)
+            ys = 100 * cos(a)
+            pos = QPointF(xs, ys)
+            pos = QTransform().rotate(-20).map(pos)
+            pos -= QPointF(40, 40)
+            icon.setPos(pos)
+            base_line = max(base_line, ys)
+
+            icon.graphicsEffect().set_base_line(base_line)
+
+        self.scene().update()
+
+    def setup_scene(self):
+        self.scene().setSceneRect(-200, -120, 400, 240)
+
+        names = ["accessories-calculator.png", "accessories-text-editor.png",
+                 "help-browser.png", "internet-group-chat.png",
+                 "internet-mail.png", "internet-web-browser.png", "office-calendar.png",
+                 "system-users.png"]
+
+        for name in names:
+            pixmap = QPixmap(self._path / "images" / name)
+            icon: QGraphicsPixmapItem = self.scene().addPixmap(pixmap)
+            icon.setZValue(1)
+            icon.setGraphicsEffect(BlurEffect(icon))
+            self._icons.append(icon)
+
+        bg: QGraphicsPixmapItem = self.scene().addPixmap(self._background)
+        bg.setZValue(0)
+        bg.setPos(-200, -150)
+
+    def keyPressEvent(self, event):
+        delta = 0
+        if event.key() == Qt.Key_Left:
+            delta = -1
+        elif event.key() == Qt.Key_Right:
+            delta = 1
+
+        if self._animation.state() == QAbstractAnimation.Stopped and delta:
+            self._animation.setEndValue(self._index + delta)
+            self._animation.start()
+            event.accept()
+
+    def mousePressEvent(self, event):
+        right = event.position().x() > (self.width() / 2)
+        delta = 1 if right else -1
+
+        if self._animation.state() == QAbstractAnimation.Stopped:
+            self._animation.setEndValue(self._index + delta)
+            self._animation.start()
+            event.accept()