diff options
| author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2022-09-15 13:21:53 +0200 |
|---|---|---|
| committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2022-09-16 10:30:36 +0200 |
| commit | cf32b66adbfb489cd6e5d5c0bf3f741b59ba204c (patch) | |
| tree | 44be69c9487f5d4db1092d061a555bd6001c1ab4 /examples/quick/scenegraph/openglunderqml/squircle.py | |
| parent | b20d6f6906f91f9df608d7800f4e27f7a7160abe (diff) | |
Move examples around
Change the directory structure to closer match that of Qt.
Task-number: PYSIDE-841
Change-Id: I87aca346b6654aafe94dd1fb83c184c182ceb2e6
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
Diffstat (limited to 'examples/quick/scenegraph/openglunderqml/squircle.py')
| -rw-r--r-- | examples/quick/scenegraph/openglunderqml/squircle.py | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/examples/quick/scenegraph/openglunderqml/squircle.py b/examples/quick/scenegraph/openglunderqml/squircle.py new file mode 100644 index 000000000..d2900198b --- /dev/null +++ b/examples/quick/scenegraph/openglunderqml/squircle.py @@ -0,0 +1,79 @@ +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +from PySide6.QtCore import Property, QRunnable, Qt, Signal, Slot +from PySide6.QtQml import QmlElement +from PySide6.QtQuick import QQuickItem, QQuickWindow + +from squirclerenderer import SquircleRenderer + +# To be used on the @QmlElement decorator +# (QML_IMPORT_MINOR_VERSION is optional) +QML_IMPORT_NAME = "OpenGLUnderQML" +QML_IMPORT_MAJOR_VERSION = 1 + + +class CleanupJob(QRunnable): + def __init__(self, renderer): + super().__init__() + self._renderer = renderer + + def run(self): + del self._renderer + + +@QmlElement +class Squircle(QQuickItem): + + tChanged = Signal() + + def __init__(self, parent=None): + super().__init__(parent) + self._t = 0.0 + self._renderer = None + self.windowChanged.connect(self.handleWindowChanged) + + def t(self): + return self._t + + def setT(self, value): + if self._t == value: + return + self._t = value + self.tChanged.emit() + if self.window(): + self.window().update() + + @Slot(QQuickWindow) + def handleWindowChanged(self, win): + if win: + win.beforeSynchronizing.connect(self.sync, type=Qt.DirectConnection) + win.sceneGraphInvalidated.connect(self.cleanup, type=Qt.DirectConnection) + win.setColor(Qt.black) + self.sync() + + @Slot() + def cleanup(self): + del self._renderer + self._renderer = None + + @Slot() + def sync(self): + window = self.window() + if not self._renderer: + self._renderer = SquircleRenderer() + window.beforeRendering.connect(self._renderer.init, Qt.DirectConnection) + window.beforeRenderPassRecording.connect( + self._renderer.paint, Qt.DirectConnection + ) + self._renderer.setViewportSize(window.size() * window.devicePixelRatio()) + self._renderer.setT(self._t) + self._renderer.setWindow(window) + + def releaseResources(self): + self.window().scheduleRenderJob( + CleanupJob(self._renderer), QQuickWindow.BeforeSynchronizingStage + ) + self._renderer = None + + t = Property(float, t, setT, notify=tChanged) |